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2741 commits

Author SHA1 Message Date
Johan Herland 80a14665b1 finish_copy_notes_for_rewrite(): Let caller provide commit message
When copying notes for a rewritten object, the resulting notes commit
would have the following hardcoded commit message:

  Notes added by 'git notes copy'

This is obviously bogus when the notes rewriting is performed by
'git commit --amend'.

Therefore, let the caller specify an appropriate notes commit message
instead of hardcoding it. The above message is used for 'git notes copy',
but when calling finish_copy_notes_for_rewrite() from builtin/commit.c,
we use the following message instead:

  Notes added by 'git commit --amend'

Cc: Thomas Rast <trast@inf.ethz.ch>
Signed-off-by: Johan Herland <johan@herland.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-06-12 10:27:41 -07:00
Junio C Hamano 08f704f294 toposort: rename "lifo" field
The primary invariant of sort_in_topological_order() is that a
parent commit is not emitted until all children of it are.  When
traversing a forked history like this with "git log C E":

    A----B----C
     \
      D----E

we ensure that A is emitted after all of B, C, D, and E are done, B
has to wait until C is done, and D has to wait until E is done.

In some applications, however, we would further want to control how
these child commits B, C, D and E on two parallel ancestry chains
are shown.

Most of the time, we would want to see C and B emitted together, and
then E and D, and finally A (i.e. the --topo-order output).  The
"lifo" parameter of the sort_in_topological_order() function is used
to control this behaviour.  We start the traversal by knowing two
commits, C and E.  While keeping in mind that we also need to
inspect E later, we pick C first to inspect, and we notice and
record that B needs to be inspected.  By structuring the "work to be
done" set as a LIFO stack, we ensure that B is inspected next,
before other in-flight commits we had known that we will need to
inspect, e.g. E.

When showing in --date-order, we would want to see commits ordered
by timestamps, i.e. show C, E, B and D in this order before showing
A, possibly mixing commits from two parallel histories together.
When "lifo" parameter is set to false, the function keeps the "work
to be done" set sorted in the date order to realize this semantics.
After inspecting C, we add B to the "work to be done" set, but the
next commit we inspect from the set is E which is newer than B.

The name "lifo", however, is too strongly tied to the way how the
function implements its behaviour, and does not describe what the
behaviour _means_.

Replace this field with an enum rev_sort_order, with two possible
values: REV_SORT_IN_GRAPH_ORDER and REV_SORT_BY_COMMIT_DATE, and
update the existing code.  The mechanical replacement rule is:

  "lifo == 0" is equivalent to "sort_order == REV_SORT_BY_COMMIT_DATE"
  "lifo == 1" is equivalent to "sort_order == REV_SORT_IN_GRAPH_ORDER"

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-06-11 15:15:21 -07:00
Jorge Juan Garcia Garcia 50e4f757f4 status: introduce status.short to enable --short by default
Some people always run 'git status -s'.
The configuration variable status.short allows to set it by default.

Signed-off-by: Jorge Juan Garcia Garcia <Jorge-Juan.Garcia-Garcia@ensimag.imag.fr>
Signed-off-by: Mathieu Lienard--Mayor <Mathieu.Lienard--Mayor@ensimag.imag.fr>
Reviewed-by: Matthieu Moy <Matthieu.Moy@grenoble-inp.fr>
Signed-off-by: Matthieu Moy <Matthieu.Moy@grenoble-inp.fr>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-06-11 14:38:08 -07:00
Junio C Hamano dd261b1727 Merge branch 'rs/unpack-trees-plug-leak'
* rs/unpack-trees-plug-leak:
  unpack-trees: free cache_entry array members for merges
  diff-lib, read-tree, unpack-trees: mark cache_entry array paramters const
  diff-lib, read-tree, unpack-trees: mark cache_entry pointers const
  unpack-trees: create working copy of merge entry in merged_entry
  unpack-trees: factor out dup_entry
  read-cache: mark cache_entry pointers const
  cache: mark cache_entry pointers const
2013-06-11 13:30:05 -07:00
Matthieu Moy 4c7f1819b3 make color.ui default to 'auto'
Most users seem to like having colors enabled, and colors can help
beginners to understand the output of some commands (e.g. notice
immediately the boundary between commits in the output of "git log").

Many tutorials tell the users to set color.ui=auto as a very first step,
which tend to indicate that color.ui=none is not the recommanded value,
hence should not be the default.

These tutorials would benefit from skipping this step and starting the
real Git manipulations earlier. Other beginners do not know about
color.ui=auto, and may not discover it by themselves, hence live with
black&white outputs while they may have preferred colors.

A few people (e.g. color-blind) prefer having no colors, but they can
easily set color.ui=never for this (and googling "disable colors in git"
already tells them how to do so), but this needs not occupy space in
beginner-oriented documentations.

A transition period with Git emitting a warning when color.ui is unset
would be possible, but the discomfort of having the warning seems
superior to the benefit: users may be surprised by the change, but not
harmed by it.

The default value is changed, and the documentation is reworded to
mention "color.ui=false" first, since the primary use of color.ui after
this change is to disable colors, not to enable it.

Signed-off-by: Matthieu Moy <Matthieu.Moy@imag.fr>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-06-10 10:55:42 -07:00
Junio C Hamano b1c418e155 Merge branch 'jn/config-ignore-inaccessible' into maint
A git daemon that starts as "root" and then drops privilege often
leaves $HOME set to that of the root user, which is unreadable by
the daemon process, which was diagnosed as a configuration error.

Make per-user configuration files that are inaccessible due to
EACCES as though these files do not exist to avoid this issue, as
the tightening which was originally meant as an additional security
has annoyed enough sysadmins.

* jn/config-ignore-inaccessible:
  config: allow inaccessible configuration under $HOME
2013-06-09 17:06:56 -07:00
Junio C Hamano 36a22e4b6c Merge branch 'rr/push-head'
"git push $there HEAD:branch" did not resolve HEAD early enough, so
it was easy to flip it around while push is still going on and push
out a branch that the user did not originally intended when the
command was started.

* rr/push-head:
  push: make push.default = current use resolved HEAD
  push: fail early with detached HEAD and current
  push: factor out the detached HEAD error message
2013-06-06 12:19:00 -07:00
Junio C Hamano 72e719292d Merge branch 'nd/clone-connectivity-shortcut'
Special case "git clone" and use lighter-weight implementation to
check the completeness of the history behind refs.

* nd/clone-connectivity-shortcut:
  clone: open a shortcut for connectivity check
  index-pack: remove dead code (it should never happen)
  fetch-pack: prepare updated shallow file before fetching the pack
  clone: let the user know when check_everything_connected is run
2013-06-06 12:17:55 -07:00
Junio C Hamano 9d54f97e34 Merge branch 'nd/prune-packed-dryrun-verbose'
* nd/prune-packed-dryrun-verbose:
  prune-packed: avoid implying "1" is DRY_RUN in prune_packed_objects()
2013-06-06 12:17:52 -07:00
Jeff King 6e454b9a31 clear parsed flag when we free tree buffers
Many code paths will free a tree object's buffer and set it
to NULL after finishing with it in order to keep memory
usage down during a traversal. However, out of 8 sites that
do this, only one actually unsets the "parsed" flag back.
Those sites that don't are setting a trap for later users of
the tree object; even after calling parse_tree, the buffer
will remain NULL, causing potential segfaults.

It is not known whether this is triggerable in the current
code. Most commands do not do an in-memory traversal
followed by actually using the objects again. However, it
does not hurt to be safe for future callers.

In most cases, we can abstract this out to a
"free_tree_buffer" helper. However, there are two
exceptions:

  1. The fsck code relies on the parsed flag to know that we
     were able to parse the object at one point. We can
     switch this to using a flag in the "flags" field.

  2. The index-pack code sets the buffer to NULL but does
     not free it (it is freed by a caller). We should still
     unset the parsed flag here, but we cannot use our
     helper, as we do not want to free the buffer.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-06-06 10:29:12 -07:00
Junio C Hamano bf9923171e Merge branch 'rs/commit-m-no-edit'
"git commit --allow-empty-message -m ''" should not start an
editor.

* rs/commit-m-no-edit:
  commit: don't start editor if empty message is given with -m
2013-06-05 14:59:53 -07:00
Junio C Hamano ed73fe5642 Merge branch 'tr/line-log'
* tr/line-log:
  git-log(1): remove --full-line-diff description
  line-log: fix documentation formatting
  log -L: improve comments in process_all_files()
  log -L: store the path instead of a diff_filespec
  log -L: test merge of parallel modify/rename
  t4211: pass -M to 'git log -M -L...' test
  log -L: fix overlapping input ranges
  log -L: check range set invariants when we look it up
  Speed up log -L... -M
  log -L: :pattern:file syntax to find by funcname
  Implement line-history search (git log -L)
  Export rewrite_parents() for 'log -L'
  Refactor parse_loc
2013-06-02 16:00:44 -07:00
Junio C Hamano 4de1179afc Merge branch 'mc/describe-first-parent'
* mc/describe-first-parent:
  describe: Add --first-parent option
2013-06-02 15:59:49 -07:00
Junio C Hamano db400949b3 Merge branch 'jk/fetch-always-update-tracking'
"git fetch origin master" unlike "git fetch origin" or "git fetch"
did not update "refs/remotes/origin/master"; this was an early
design decision to keep the update of remote tracking branches
predictable, but in practice it turns out that people find it more
convenient to opportunisticly update them whenever we have a chance,
and we have been updating them when we run "git push" which already
breaks the original "predictability" anyway.

Now such a fetch does update refs/remotes/origin/master.

* jk/fetch-always-update-tracking:
  fetch: don't try to update unfetched tracking refs
  fetch: opportunistically update tracking refs
  refactor "ref->merge" flag
  fetch/pull doc: untangle meaning of bare <ref>
  t5510: start tracking-ref tests from a known state
2013-06-02 15:57:26 -07:00
Junio C Hamano 1197c2298b Merge branch 'vv/help-unknown-ref'
Detect "git merge foo" that might have meant "git merge origin/foo"
and give an error message that is more specific than "foo is not
something we can merge".

* vv/help-unknown-ref:
  merge: use help_unknown_ref()
  help: add help_unknown_ref()
2013-06-02 15:54:06 -07:00
Junio C Hamano 41aaccdcf9 Merge branch 'nd/clone-local-with-colon'
"git clone foo/bar:baz" cannot be a request to clone from a remote
over git-over-ssh specified in the scp style.  Detect this case and
clone from a local repository at "foo/bar:baz".

* nd/clone-local-with-colon:
  clone: allow cloning local paths with colons in them
2013-06-02 15:52:22 -07:00
Junio C Hamano dbbc93b221 Merge branch 'fc/fast-export-persistent-marks'
Optimization for fast-export by avoiding unnecessarily resolving
arbitrary object name and parsing object when only presence and
type information is necessary, etc.

* fc/fast-export-persistent-marks:
  fast-{import,export}: use get_sha1_hex() to read from marks file
  fast-export: don't parse commits while reading marks file
  fast-export: do not parse non-commit objects while reading marks file
2013-06-02 15:48:28 -07:00
René Scharfe 5828e8352c diff-lib, read-tree, unpack-trees: mark cache_entry array paramters const
Change the type merge_fn_t to accept the array of cache_entry pointers
as const pointers to const pointers.  This documents the fact that the
merge functions don't modify the cache_entry contents or replace any of
the pointers in the array.

Only a single cast is necessary in unpack_nondirectories because adding
two const modifiers at once is not allowed in C.  The cast is safe in
that it doesn't mask any modfication; call_unpack_fn only needs the
array for reading.

Signed-off-by: René Scharfe <rene.scharfe@lsrfire.ath.cx>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-06-02 15:31:14 -07:00
René Scharfe eb9ae4b505 diff-lib, read-tree, unpack-trees: mark cache_entry pointers const
Add const to struct cache_entry pointers throughout the tree which are
only used for reading.  This allows callers to pass in const pointers.

Signed-off-by: René Scharfe <rene.scharfe@lsrfire.ath.cx>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-06-02 15:31:14 -07:00
Michael Haggerty 66ce036628 exclude_existing(): set existing_refs.strdup_strings
The each_ref_fn add_existing() adds refnames to the existing_refs
list.  But the lifetimes of these refnames is not guaranteed by the
refs API, so configure the string_list to make copies as it adds them.

Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-06-02 15:28:47 -07:00
Michael Haggerty f83918edcb add_existing(): do not retain a reference to sha1
Its lifetime is not guaranteed, so make a copy.  Free the memory when
the string_list is cleared.

Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-06-02 15:28:47 -07:00
Michael Haggerty 5b87d8d3f5 do_fetch(): clean up existing_refs before exiting
Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-06-02 15:28:47 -07:00
Michael Haggerty 6f64a16faf do_fetch(): reduce scope of peer_item
Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-06-02 15:28:46 -07:00
Ramkumar Ramachandra 0f075b2208 push: make push.default = current use resolved HEAD
With this change, the output of the push (with push.default set to
current) changes subtly from:

  $ git push
  ...
   * [new branch]      HEAD -> push-current-head

to:

  $ git push
  ...
   * [new branch]      push-current-head -> push-current-head

This patch was written with a different motivation. There is a problem
unique to push.default = current:

  # on branch push-current-head
  $ git push
  # on another terminal
  $ git checkout master
  # return to the first terminal
  # the push tried to push master!

This happens because the 'git checkout' on the second terminal races
with the 'git push' on the first terminal.  Although this patch does not
solve the core problem (there is still no guarantee that 'git push' on
the first terminal will resolve HEAD before 'git checkout' changes HEAD
on the second), it works in practice.

Signed-off-by: Ramkumar Ramachandra <artagnon@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-05-29 15:34:07 -07:00
Ramkumar Ramachandra 7b2ecd8108 push: fail early with detached HEAD and current
Setting push.default to current adds the refspec "HEAD" for the
transport layer to handle.  If "HEAD" doesn't resolve to a branch (and
since no refspec rhs is specified), the push fails after some time with
a cryptic error message:

  $ git push
  error: unable to push to unqualified destination: HEAD
  The destination refspec neither matches an existing ref on the remote nor
  begins with refs/, and we are unable to guess a prefix based on the source ref.
  error: failed to push some refs to 'git@github.com:artagnon/git'

Fail early with a nicer error message:

  $ git push
  fatal: You are not currently on a branch.
  To push the history leading to the current (detached HEAD)
  state now, use

    git push ram HEAD:<name-of-remote-branch>

Just like in the upstream and simple cases.

Signed-off-by: Ramkumar Ramachandra <artagnon@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-05-29 15:34:04 -07:00
Junio C Hamano 7ebb906ddd Merge branch 'jn/config-ignore-inaccessible'
When $HOME is misconfigured to point at an unreadable directory, we
used to complain and die. This loosens the check.

* jn/config-ignore-inaccessible:
  config: allow inaccessible configuration under $HOME
2013-05-29 14:30:10 -07:00
Junio C Hamano 2f1ef15070 Merge branch 'mh/packed-refs-various'
Update reading and updating packed-refs file, correcting corner case
bugs.

* mh/packed-refs-various: (33 commits)
  refs: handle the main ref_cache specially
  refs: change do_for_each_*() functions to take ref_cache arguments
  pack_one_ref(): do some cheap tests before a more expensive one
  pack_one_ref(): use write_packed_entry() to do the writing
  pack_one_ref(): use function peel_entry()
  refs: inline function do_not_prune()
  pack_refs(): change to use do_for_each_entry()
  refs: use same lock_file object for both ref-packing functions
  pack_one_ref(): rename "path" parameter to "refname"
  pack-refs: merge code from pack-refs.{c,h} into refs.{c,h}
  pack-refs: rename handle_one_ref() to pack_one_ref()
  refs: extract a function write_packed_entry()
  repack_without_ref(): write peeled refs in the rewritten file
  t3211: demonstrate loss of peeled refs if a packed ref is deleted
  refs: change how packed refs are deleted
  search_ref_dir(): return an index rather than a pointer
  repack_without_ref(): silence errors for dangling packed refs
  t3210: test for spurious error messages for dangling packed refs
  refs: change the internal reference-iteration API
  refs: extract a function peel_entry()
  ...
2013-05-29 14:23:49 -07:00
Junio C Hamano c51afbbd18 Merge branch 'as/check-ignore'
Enhance "check-ignore" (1.8.2 update) to work more like "check-attr"
over bidi-pipes.

* as/check-ignore:
  t0008: use named pipe (FIFO) to test check-ignore streaming
  Documentation: add caveats about I/O buffering for check-{attr,ignore}
  check-ignore: allow incremental streaming of queries via --stdin
  check-ignore: move setup into cmd_check_ignore()
  check-ignore: add -n / --non-matching option
  t0008: remove duplicated test fixture data
2013-05-29 14:23:40 -07:00
Junio C Hamano 77eb44b8ed Merge branch 'jh/checkout-auto-tracking'
Update "git checkout foo" that DWIMs the intended "upstream" and
turns it into "git checkout -t -b foo remotes/origin/foo" to
correctly take existing remote definitions into account.

The remote "origin" may be what uniquely map its own branch to
remotes/some/where/foo but that some/where may not be "origin".

* jh/checkout-auto-tracking:
  glossary: Update and rephrase the definition of a remote-tracking branch
  branch.c: Validate tracking branches with refspecs instead of refs/remotes/*
  t9114.2: Don't use --track option against "svn-remote"-tracking branches
  t7201.24: Add refspec to keep --track working
  t3200.39: tracking setup should fail if there is no matching refspec.
  checkout: Use remote refspecs when DWIMming tracking branches
  t2024: Show failure to use refspec when DWIMming remote branch names
  t2024: Add tests verifying current DWIM behavior of 'git checkout <branch>'
2013-05-29 14:23:10 -07:00
Junio C Hamano 3e1e7624aa Merge branch 'jc/prune-all'
We used the approxidate() parser for "--expire=<timestamp>" options
of various commands, but it is better to treat --expire=all and
--expire=now a bit more specially than using the current timestamp.
Update "git gc" and "git reflog" with a new parsing function for
expiry dates.

* jc/prune-all:
  prune: introduce OPT_EXPIRY_DATE() and use it
  api-parse-options.txt: document "no-" for non-boolean options
  git-gc.txt, git-reflog.txt: document new expiry options
  date.c: add parse_expiry_date()
2013-05-29 14:23:04 -07:00
Ramkumar Ramachandra 35ee69c0f6 push: factor out the detached HEAD error message
With push.default set to upstream or simple, and a detached HEAD, git
push prints the following error:

  $ git push
  fatal: You are not currently on a branch.
  To push the history leading to the current (detached HEAD)
  state now, use

    git push ram HEAD:<name-of-remote-branch>

This error is not unique to upstream or simple: current cannot push with
a detached HEAD either.  So, factor out the error string in preparation
for using it in current.

Signed-off-by: Ramkumar Ramachandra <artagnon@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-05-29 12:31:10 -07:00
René Scharfe 25206778aa commit: don't start editor if empty message is given with -m
If an empty message is specified with the option -m of git commit then
the editor is started.  That's unexpected and unnecessary.  Instead of
using the length of the message string for checking if the user
specified one, directly remember if the option -m was given.

Reported-by: Mislav Marohnić <mislav.marohnic@gmail.com>
Signed-off-by: René Scharfe <rene.scharfe@lsrfire.ath.cx>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-05-28 14:33:01 -07:00
Michael Haggerty 16aa3bfc9b fsck: don't put a void*-shaped peg in a char*-shaped hole
The source of this nonsense was

    04d3975937 fsck: reduce stack footprint

, which wedged a pointer to parent into the object_array_entry's name
field.  The parent pointer was passed to traverse_one_object(), even
though that function *didn't use it*.

The useless code has been deleted over time.  Commit

    a1cdc25172 fsck: drop unused parameter from traverse_one_object()

removed the parent pointer from traverse_one_object()'s
signature. Commit

    c0aa335c95 Remove unused variables

removed the code that read the parent pointer back out of the name
field.

This commit takes the last step: don't write the parent pointer into
the name field in the first place.

Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-05-28 09:25:01 -07:00
Michael Haggerty 5b1e14eab3 cmd_diff(): make it obvious which cases are exclusive of each other
At first glance the OBJ_COMMIT, OBJ_TREE, and OBJ_BLOB cases look like
they might be mutually exclusive.  But the OBJ_COMMIT case doesn't end
the loop iteration with "continue" like the other two cases, but
rather falls through.  So use if...else if...else construct to make it
more obvious that only the last two cases are mutually exclusive.

Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-05-28 09:25:01 -07:00
Michael Haggerty 026f09e796 cmd_diff(): rename local variable "list" -> "entry"
It's not a list, it's an array entry.

Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-05-28 09:25:00 -07:00
Michael Haggerty 33055fa823 cmd_diff(): use an object_array for holding trees
Change cmd_diff() to use a (struct object_array) for holding the trees
that it accumulates, rather than rolling its own equivalent.

Incidentally, this change removes a hard-coded limit of 100 trees in
combined diff, not that it matters in practice.

Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-05-28 09:25:00 -07:00
Michael Haggerty 91de344d76 builtin_diff_tree(): make it obvious that function wants two entries
Instead of accepting an array and using exactly two elements from the
array, take two single (struct object_array_entry *) arguments.

Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-05-28 09:25:00 -07:00
Michael Haggerty b87dbcc899 fetch: make own copies of refnames
Do not retain references to refnames passed to the each_ref_fn
callback add_existing(), because their lifetime is not guaranteed.

Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-05-28 09:25:00 -07:00
Michael Haggerty 219a0f33ca describe: make own copy of refname
Do not retain a reference to the refname passed to the each_ref_fn
callback get_name(), because there is no guarantee of the lifetimes of
these names.  Instead, make a local copy when needed.

Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-05-28 09:25:00 -07:00
Nguyễn Thái Ngọc Duy af0b4a3b59 prune-packed: avoid implying "1" is DRY_RUN in prune_packed_objects()
Commit b60daf0 (Make git-prune-packed a bit more chatty. - 2007-01-12)
changes the meaning of prune_packed_objects()'s argument, from "dry
run or not dry run" to a bitmap.

It however forgot to update prune_packed_objects() caller in
builtin/prune.c to use new DRY_RUN macro. It's fine (for a long time!)
but there is a risk that someday someone may change the value of
DRY_RUN to something else and builtin/prune.c suddenly breaks. Avoid
that possibility.

While at there, change "opts == VERBOSE" to "opts & VERBOSE" as there
is no obvious reason why we only be chatty when DRY_RUN is not set.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-05-28 09:20:54 -07:00
John Keeping 823c6d56a8 fetch: don't try to update unfetched tracking refs
Since commit f269048 (fetch: opportunistically update tracking refs,
2013-05-11) we update tracking refs opportunistically when fetching
remote branches.  However, if there is a configured non-pattern refspec
that does not match any of the refspecs given on the command line then a
fatal error occurs.

Fix this by setting the "missing_ok" flag when calling get_fetch_map.

Test-added-by: Jeff King <peff@peff.net>
Signed-off-by: John Keeping <john@keeping.me.uk>
Acked-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-05-28 08:13:14 -07:00
Nguyễn Thái Ngọc Duy c6807a40dc clone: open a shortcut for connectivity check
In order to make sure the cloned repository is good, we run "rev-list
--objects --not --all $new_refs" on the repository. This is expensive
on large repositories. This patch attempts to mitigate the impact in
this special case.

In the "good" clone case, we only have one pack. If all of the
following are met, we can be sure that all objects reachable from the
new refs exist, which is the intention of running "rev-list ...":

 - all refs point to an object in the pack
 - there are no dangling pointers in any object in the pack
 - no objects in the pack point to objects outside the pack

The second and third checks can be done with the help of index-pack as
a slight variation of --strict check (which introduces a new condition
for the shortcut: pack transfer must be used and the number of objects
large enough to call index-pack). The first is checked in
check_everything_connected after we get an "ok" from index-pack.

"index-pack + new checks" is still faster than the current "index-pack
+ rev-list", which is the whole point of this patch. If any of the
conditions fail, we fall back to the good old but expensive "rev-list
..". In that case it's even more expensive because we have to pay for
the new checks in index-pack. But that should only happen when the
other side is either buggy or malicious.

Cloning linux-2.6 over file://

        before         after
real    3m25.693s      2m53.050s
user    5m2.037s       4m42.396s
sys     0m13.750s      0m16.574s

A more realistic test with ssh:// over wireless

        before         after
real    11m26.629s     10m4.213s
user    5m43.196s      5m19.444s
sys     0m35.812s      0m37.630s

This shortcut is not applied to shallow clones, partly because shallow
clones should have no more objects than a usual fetch and the cost of
rev-list is acceptable, partly to avoid dealing with corner cases when
grafting is involved.

This shortcut does not apply to unpack-objects code path either
because the number of objects must be small in order to trigger that
code path.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-05-28 08:07:20 -07:00
Nguyễn Thái Ngọc Duy 920734b069 index-pack: remove dead code (it should never happen)
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-05-28 08:07:03 -07:00
Mike Crowe e00dd1e948 describe: Add --first-parent option
Only consider the first parent commit when walking the commit history. This
is useful if you only wish to match tags on your branch after a merge.

Signed-off-by: Mike Crowe <mac@mcrowe.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-05-20 11:09:03 -07:00
Matthieu Moy b8612b4da4 config: refactor management of color.ui's default value
The meaning of get_colorbool_found and get_diff_color_found is "the
config value if found, and -1 otherwise", but get_color_ui_found had a
slightly different meaning, as it has the value 0 (which corresponds to
the default value from the user point of view) when color.ui is unset.

Make get_color_ui_found default to -1, and make it explicit that 0 is the
default value when nothing else is found.

Signed-off-by: Matthieu Moy <Matthieu.Moy@imag.fr>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-05-15 11:02:19 -07:00
Jeff King f269048754 fetch: opportunistically update tracking refs
When we run a regular "git fetch" without arguments, we
update the tracking refs according to the configured
refspec. However, when we run "git fetch origin master" (or
"git pull origin master"), we do not look at the configured
refspecs at all, and just update FETCH_HEAD.

We miss an opportunity to update "refs/remotes/origin/master"
(or whatever the user has configured). Some users find this
confusing, because they would want to do further comparisons
against the old state of the remote master, like:

  $ git pull origin master
  $ git log HEAD...origin/master

In the currnet code, they are comparing against whatever
commit happened to be in origin/master from the last time
they did a complete "git fetch".  This patch will update a
ref from the RHS of a configured refspec whenever we happen
to be fetching its LHS. That makes the case above work.

The downside is that any users who really care about whether
and when their tracking branches are updated may be
surprised.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-05-12 15:23:48 -07:00
Jeff King 900f2814b8 refactor "ref->merge" flag
Each "struct ref" has a boolean flag that is set by the
fetch code to determine whether the ref should be marked as
"not-for-merge" or not when we write it out to FETCH_HEAD.

It would be useful to turn this boolean into a tri-state,
with the third state meaning "do not bother writing it out
to FETCH_HEAD at all". That would let us add extra refs to
the set of refs to be stored (e.g., to store copies of
things we fetched) without impacting FETCH_HEAD.

This patch turns it into an enum that covers the tri-state
case, and hopefully makes the code more explicit and easier
to read.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-05-12 15:23:48 -07:00
Nguyễn Thái Ngọc Duy 0781aa4766 clone: let the user know when check_everything_connected is run
check_everything_connected could take a long time, especially in the
clone case where the whole DAG is traversed. The user deserves to know
what's going on.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-05-11 10:28:54 -07:00
Michael J Gruber afa15f3cd8 grep: honor --textconv for the case rev:path
Make "grep" honor the "--textconv" option also for the object case, i.e.
when used with an argument "rev:path".

Signed-off-by: Michael J Gruber <git@drmicha.warpmail.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-05-10 10:27:34 -07:00
Jeff King 335ec3bf41 grep: allow to use textconv filters
Recently and not so recently, we made sure that log/grep type operations
use textconv filters when a userfacing diff would do the same:

ef90ab6 (pickaxe: use textconv for -S counting, 2012-10-28)
b1c2f57 (diff_grep: use textconv buffers for add/deleted files, 2012-10-28)
0508fe5 (combine-diff: respect textconv attributes, 2011-05-23)

"git grep" currently does not use textconv filters at all, that is
neither for displaying the match and context nor for the actual grepping,
even when requested by --textconv.

Introduce an option "--textconv" which makes git grep use any configured
textconv filters for grepping and output purposes. It is off by default.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Michael J Gruber <git@drmicha.warpmail.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-05-10 10:27:31 -07:00
Michael J Gruber 3ac21617b0 cat-file: do not die on --textconv without textconv filters
When a command is supposed to use textconv filters (by default or with
"--textconv") and none are configured then the blob is output without
conversion; the only exception to this rule is "cat-file --textconv".

Make it behave like the rest of textconv aware commands.

Signed-off-by: Michael J Gruber <git@drmicha.warpmail.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-05-10 10:27:16 -07:00
Michael J Gruber 083b993109 show: honor --textconv for blobs
Currently, "diff" and "cat-file" for blobs honor "--textconv" options
(with the former defaulting to "--textconv" and the latter to
"--no-textconv") whereas "show" does not honor this option, even though
it takes diff options.

Make "show" on blobs honor "--textconv" when it is asked.  The default
is not to apply textconv, which is in line with what "cat-file" does.

Signed-off-by: Michael J Gruber <git@drmicha.warpmail.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-05-10 10:25:43 -07:00
Junio C Hamano 6c374008b1 diff_opt: track whether flags have been set explicitly
The diff_opt infrastructure sets flags based on defaults and command
line options.  It is impossible to tell whether a flag has been set
as a default or on explicit request.  Update the structure so that
this detection is possible:

 * Add an extra "opt->touched_flags" that keeps track of all the
   fields that have been touched by DIFF_OPT_SET and DIFF_OPT_CLR.

 * You may continue setting the default values to the flags, like
   commands in the "log" family do in cmd_log_init_defaults(), but
   after you finished setting the defaults, you clear the
   touched_flags field;

 * And then you let the usual callchain call diff_opt_parse(),
   allowing the opt->flags be set or unset, while keeping track of
   which bits the user touched;

 * There is an optional callback "opt->set_default" that is called
   at the very beginning to let you inspect touched_flags and update
   opt->flags appropriately, before the remainder of the diffcore
   machinery is set up, taking the opt->flags value into account.

Signed-off-by: Michael J Gruber <git@drmicha.warpmail.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-05-10 10:24:17 -07:00
Vikrant Varma f3f8af0e54 merge: use help_unknown_ref()
Use help.c:help_unknown_ref() instead of die() to provide a
friendlier error message before exiting, when one of the refs
specified in a merge is unknown.

Signed-off-by: Vikrant Varma <vikrant.varma94@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-05-08 15:34:33 -07:00
Felipe Contreras 45c5d4a56b fast-{import,export}: use get_sha1_hex() to read from marks file
It's wrong to call get_sha1() if they should be SHA-1s, plus
inefficient.

Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-05-07 16:20:40 -07:00
Nguyễn Thái Ngọc Duy 60003340cd clone: allow cloning local paths with colons in them
Usually "foo:bar" is interpreted as an ssh url. This patch allows to
clone from such paths by putting at least one slash before the colon
(i.e. /path/to/foo:bar or just ./foo:bar).

file://foo:bar should also work, but local optimizations are off in
that case, which may be unwanted. While at there, warn the users about
--local being ignored in this case.

Reported-by: William Giokas <1007380@gmail.com>
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-05-07 08:32:14 -07:00
Felipe Contreras 47bd9bf82d fast-export: don't parse commits while reading marks file
We don't need the parsed objects at this point, merely the
information that they have marks.

Seems to be three times faster in my setup with lots of objects.

Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-05-07 07:03:01 -07:00
Felipe Contreras e6812cfa9a fast-export: do not parse non-commit objects while reading marks file
We read from the marks file and keep only marked commits, but in
order to find the type of object, we are parsing the whole thing,
which is slow, specially in big repositories with lots of big files.

There's no need for that, we can query the object information with
sha1_object_info().

Before this, loading the objects of a fresh emacs import, with 260598
blobs took 14 minutes, after this patch, it takes 3 seconds.

This is the way fast-import does it. Also die if the object is not
found (like fast-import).

Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-05-07 07:03:01 -07:00
Junio C Hamano 423ecb0bb6 Merge branch 'jk/merge-tree-added-identically'
* jk/merge-tree-added-identically:
  merge-tree: handle directory/empty conflict correctly
2013-05-06 22:18:25 -07:00
John Keeping 94883b4302 merge-tree: handle directory/empty conflict correctly
git-merge-tree causes a null pointer dereference when a directory
entry exists in only one or two of the three trees being compared with
no corresponding entry in the other tree(s).

When this happens, we want to handle the entry as a directory and not
attempt to mark it as a file merge.  Do this by setting the entries bit
in the directory mask when the entry is missing or when it is a
directory, only performing the file comparison when we know that a file
entry exists.

Reported-by: Andreas Jacobsen <andreas@andreasjacobsen.com>
Signed-off-by: John Keeping <john@keeping.me.uk>
Tested-by: Andreas Jacobsen <andreas@andreasjacobsen.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-05-06 22:17:00 -07:00
Junio C Hamano 571cdfd4e0 Merge branch 'tr/remote-tighten-commandline-parsing' into maint
* tr/remote-tighten-commandline-parsing:
  remote: 'show' and 'prune' can take more than one remote
  remote: check for superfluous arguments in 'git remote add'
  remote: add a test for extra arguments, according to docs
2013-05-03 15:12:38 -07:00
Michael Haggerty 32d462cea8 pack-refs: merge code from pack-refs.{c,h} into refs.{c,h}
pack-refs.c doesn't contain much code, and the code it does contain is
closely related to reference handling.  Moreover, there is some
duplication between pack_refs() and repack_without_ref().  Therefore,
merge pack-refs.c into refs.c and pack-refs.h into refs.h.

The code duplication will be addressed in future commits.

Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-05-01 15:33:11 -07:00
Junio C Hamano c259a1a927 Merge branch 'tr/remote-tighten-commandline-parsing'
* tr/remote-tighten-commandline-parsing:
  remote: 'show' and 'prune' can take more than one remote
  remote: check for superfluous arguments in 'git remote add'
  remote: add a test for extra arguments, according to docs
2013-05-01 15:24:01 -07:00
Junio C Hamano a6fed65a6a Merge branch 'jk/check-corrupt-objects-carefully'
* jk/check-corrupt-objects-carefully:
  clone: Make the 'junk_mode' symbol a file static
2013-04-28 11:57:54 -07:00
Ramsay Jones 85064630fc clone: Make the 'junk_mode' symbol a file static
Sparse issues an "'junk_mode' not declared. Should it be static?"
warning. In order to suppress the warning, since this symbol does
not need more than file visibility, we simply add the static
modifier to its declaration.

Signed-off-by: Ramsay Jones <ramsay@ramsay1.demon.co.uk>
Acked-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-04-28 11:57:35 -07:00
Junio C Hamano 27f0d3b63d Merge branch 'jk/merge-tree-added-identically'
off-by-one fix.

* jk/merge-tree-added-identically:
  merge-tree: fix typo in "both changed identically"
2013-04-28 11:53:57 -07:00
John Keeping ab5f42422d merge-tree: fix typo in "both changed identically"
Commit aacecc3 (merge-tree: don't print entries that match "local" -
2013-04-07) had a typo causing the "same in both" check to be incorrect
and check if both the base and "their" versions are removed instead of
checking that both the "our" and "their" versions are removed.  Fix
this.

Reported-by: René Scharfe <rene.scharfe@lsrfire.ath.cx>
Test-written-by: René Scharfe <rene.scharfe@lsrfire.ath.cx>
Signed-off-by: John Keeping <john@keeping.me.uk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-04-28 11:53:41 -07:00
Junio C Hamano 2a407d7443 Merge branch 'rr/shortlog-doc'
Update documentation for "log" and "shortlog".

* rr/shortlog-doc:
  builtin/shortlog.c: make usage string consistent with log
  builtin/log.c: make usage string consistent with doc
  git-shortlog.txt: make SYNOPSIS match log, update OPTIONS
  git-log.txt: rewrite note on why "--" may be required
  git-log.txt: generalize <since>..<until>
  git-log.txt: order OPTIONS properly; move <since>..<until>
  revisions.txt: clarify the .. and ... syntax
  git-shortlog.txt: remove (-h|--help) from OPTIONS
2013-04-26 15:28:39 -07:00
Junio C Hamano 838f9c1eb6 Merge branch 'jc/add-ignore-removal'
Introduce "--ignore-removal" as a synonym to "--no-all" for "git
add", and improve the 2.0 migration warning with it.

* jc/add-ignore-removal:
  git add: rephrase -A/--no-all warning
  git add: --ignore-removal is a better named --no-all
2013-04-26 15:28:09 -07:00
Junio C Hamano aedb94b3f0 Merge branch 'jc/warn-pathless-add-finishing-touches'
* jc/warn-pathless-add-finishing-touches:
  git add: avoid "-u/-A without pathspec" warning on stat-dirty paths
2013-04-26 15:17:48 -07:00
Junio C Hamano 0df7b8e55c git add: avoid "-u/-A without pathspec" warning on stat-dirty paths
In preparation for Git 2.0, "git add -u/-A" without pathspec checks
all the working tree (not limited to the current directory) and
issues a warning when it finds any path that we might add in Git
2.0, because that would mean the users' fingers need to be trained
to explicitly say "." if they want to keep the current behaviour.

However, the check was incomplete, because "git add" usually does
not refresh the index, considers a path that is stat-dirty but has
contents that is otherwise up-to-date in the index as "we might
add", and relies on that it is a no-op to add the same thing again
via the add_file_to_index() API (which also knows not to say "added"
in verbose mode when this happens).  We do not want to trigger the
warning for a path that is outside the current directory is merely
stat-dirty, as it won't be added in Git 2.0, either.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
Acked-by: Jonathan Nieder <jrnieder@gmail.com>
2013-04-26 14:55:20 -07:00
Junio C Hamano bd8e3385d5 Merge branch 'jk/receive-pack-deadlocks-with-early-failure' into maint
* jk/receive-pack-deadlocks-with-early-failure:
  receive-pack: close sideband fd on early pack errors
2013-04-26 11:12:17 -07:00
Junio C Hamano 30e8180b27 Merge branch 'jk/chopped-ident' into maint
* jk/chopped-ident:
  blame: handle broken commit headers gracefully
  pretty: handle broken commit headers gracefully
  cat-file: print tags raw for "cat-file -p"
2013-04-26 11:11:51 -07:00
Junio C Hamano 0222bc9102 Merge branch 'rt/commentchar-fmt-merge-msg' into maint
* rt/commentchar-fmt-merge-msg:
  t6200: avoid path mangling issue on Windows
  fmt-merge-msg: use core.commentchar in tag signatures completely
  fmt-merge-msg: respect core.commentchar in people credits
2013-04-26 11:10:47 -07:00
Junio C Hamano 27ec394a97 prune: introduce OPT_EXPIRY_DATE() and use it
Earlier we added support for --expire=all (or --expire=now) that
considers all crufts, regardless of their age, as eligible for
garbage collection by turning command argument parsers that use
approxidate() to use parse_expiry_date(), but "git prune" used a
built-in parse-options facility OPT_DATE() and did not benefit from
the new function.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-04-25 11:42:10 -07:00
Junio C Hamano cd33b41c69 Merge branch 'jk/remote-helper-with-signed-tags'
Allows remote-helpers to declare they can handle signed tags, and
issue a warning when using those that don't.

* jk/remote-helper-with-signed-tags:
  transport-helper: add 'signed-tags' capability
  transport-helper: pass --signed-tags=warn-strip to fast-export
  fast-export: add --signed-tags=warn-strip mode
2013-04-24 16:30:50 -07:00
Junio C Hamano 2d0b07178d Sync with maint
* maint:
  Update draft release notes to 1.8.2.2
  completion: remove duplicate block for "git commit -c"
  cherry-pick/revert: make usage say '<commit-ish>...'
2013-04-24 16:30:04 -07:00
Junio C Hamano 499231d9f1 Merge branch 'jc/merge-tag-object' into maint
"git merge $(git rev-parse v1.8.2)" behaved quite differently from
"git merge v1.8.2", as if v1.8.2 were written as v1.8.2^0 and did
not pay much attention to the annotated tag payload.  Make the code
notice the type of the tag object, in addition to the dwim_ref()
based classification the current code uses (i.e. the name appears in
refs/tags/) to decide when to special case merging of tags.

* jc/merge-tag-object:
  t6200: test message for merging of an annotated tag
  t6200: use test_config/test_unconfig
  merge: a random object may not necssarily be a commit
2013-04-24 16:14:06 -07:00
Thomas Rast 2d2e3d2559 remote: check for superfluous arguments in 'git remote add'
The 'git remote add' subcommand did not check for superfluous command
line arguments.  Make it so.

Signed-off-by: Thomas Rast <trast@inf.ethz.ch>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-04-24 13:12:51 -07:00
Kevin Bracey 2130bf3ca9 cherry-pick/revert: make usage say '<commit-ish>...'
The usage string for cherry-pick and revert has never been updated to
reflect their ability to handle multiple commits. Other documentation is
already correct.

Signed-off-by: Kevin Bracey <kevin@bracey.fi>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-04-24 09:48:01 -07:00
Junio C Hamano e52e6f79cc Merge branch 'nd/pretty-formats'
pretty-printing body of the commit that is stored in non UTF-8
encoding did not work well.  The early part of this series fixes
it.  And then it adds %C(auto) specifier that turns the coloring on
when we are emitting to the terminal, and adds column-aligning
format directives.

* nd/pretty-formats:
  pretty: support %>> that steal trailing spaces
  pretty: support truncating in %>, %< and %><
  pretty: support padding placeholders, %< %> and %><
  pretty: add %C(auto) for auto-coloring
  pretty: split color parsing into a separate function
  pretty: two phase conversion for non utf-8 commits
  utf8.c: add reencode_string_len() that can handle NULs in string
  utf8.c: add utf8_strnwidth() with the ability to skip ansi sequences
  utf8.c: move display_mode_esc_sequence_len() for use by other functions
  pretty: share code between format_decoration and show_decorations
  pretty-formats.txt: wrap long lines
  pretty: get the correct encoding for --pretty:format=%e
  pretty: save commit encoding from logmsg_reencode if the caller needs it
2013-04-23 11:22:48 -07:00
Junio C Hamano 7093d2c0dd Merge branch 'kb/status-ignored-optim-2'
Fixes a handful of issues in the code to traverse working tree to
find untracked and/or ignored files, cleans up and optimizes the
codepath in general.

* kb/status-ignored-optim-2:
  dir.c: git-status --ignored: don't scan the work tree twice
  dir.c: git-status --ignored: don't scan the work tree three times
  dir.c: git-status: avoid is_excluded checks for tracked files
  dir.c: replace is_path_excluded with now equivalent is_excluded API
  dir.c: unify is_excluded and is_path_excluded APIs
  dir.c: move prep_exclude
  dir.c: factor out parts of last_exclude_matching for later reuse
  dir.c: git-clean -d -X: don't delete tracked directories
  dir.c: make 'git-status --ignored' work within leading directories
  dir.c: git-status --ignored: don't list empty directories as ignored
  dir.c: git-ls-files --directories: don't hide empty directories
  dir.c: git-status --ignored: don't list empty ignored directories
  dir.c: git-status --ignored: don't list files in ignored directories
  dir.c: git-status --ignored: don't drop ignored directories
2013-04-23 11:21:23 -07:00
Junio C Hamano f87f7424df Merge branch 'jk/receive-pack-deadlocks-with-early-failure'
When receive-pack detects error in the pack header it received in
order to decide which of unpack-objects or index-pack to run, it
returned without closing the error stream, which led to a hang
sideband thread.

* jk/receive-pack-deadlocks-with-early-failure:
  receive-pack: close sideband fd on early pack errors
2013-04-23 11:16:50 -07:00
Junio C Hamano 4c7114308e git add: rephrase -A/--no-all warning
Now we have a synonym --ignore-removal for --no-all, we can rephrase
the Git 2.0 transition warning message in a more natural way.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-04-22 13:36:51 -07:00
Junio C Hamano 9f60f49b92 git add: --ignore-removal is a better named --no-all
In the historical context of "git add --all ." that pays attention
to "all kinds of changes" (implying "without ignoring removals"),
the option to countermand it "--no-all" may have made sense, but
because we will be making "--all" the default when a pathspec is
given, it makes more sense to rename the option to a more explicit
"--ignore-removal".  The "--all" option naturally becomes its
negation, "--no-ignore-removal".

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-04-22 13:34:31 -07:00
Junio C Hamano 4fe3ed1302 Merge branch 'jk/show-branch-strbuf' into maint
* jk/show-branch-strbuf:
  show-branch: use strbuf instead of static buffer
2013-04-22 11:26:57 -07:00
Junio C Hamano 21247455f3 Merge branch 'jc/apply-ws-fix-tab-in-indent' into maint
* jc/apply-ws-fix-tab-in-indent:
  test: resurrect q_to_tab
  apply --whitespace=fix: avoid running over the postimage buffer
2013-04-22 11:26:56 -07:00
Junio C Hamano fd6d822e84 Merge branch 'as/clone-reference-with-gitfile'
"git clone" did not work if a repository pointed at by the
"--reference" option is a gitfile that points at another place.

* as/clone-reference-with-gitfile:
  clone: Allow repo using gitfile as a reference
  clone: Fix error message for reference repository
2013-04-22 11:12:40 -07:00
Junio C Hamano 561954bfa1 Merge branch 'jc/add-2.0-delete-default' (early part)
Preparatory steps to make "git add <pathspec>" take notice of
removed paths that match <pathspec> by default in Git 2.0.

* 'jc/add-2.0-delete-default' (early part):
  git add: rephrase the "removal will cease to be ignored" warning
  git add: rework the logic to warn "git add <pathspec>..." default change
  git add: start preparing for "git add <pathspec>..." to default to "-A"
  builtin/add.c: simplify boolean variables
2013-04-22 11:11:45 -07:00
Junio C Hamano de0d774d46 Merge branch 'nd/checkout-keep-sparse'
Make the initial "sparse" selection of the paths more sticky across
"git checkout".

* nd/checkout-keep-sparse:
  checkout: add --ignore-skip-worktree-bits in sparse checkout mode
2013-04-22 11:11:40 -07:00
Junio C Hamano 703319313f Merge branch 'jk/chopped-ident'
A commit object whose author or committer ident are malformed
crashed some code that trusted that a name, an email and an
timestamp can always be found in it.

* jk/chopped-ident:
  blame: handle broken commit headers gracefully
  pretty: handle broken commit headers gracefully
  cat-file: print tags raw for "cat-file -p"
2013-04-22 11:11:36 -07:00
Ramkumar Ramachandra 0942d519ad builtin/shortlog.c: make usage string consistent with log
"--" is used to separate pathspecs from the rev specs, and not rev
specs from the options, as the shortlog_usage string currently
indicates.  In correcting this usage string, make it consistent with
the log_usage string.

Signed-off-by: Ramkumar Ramachandra <artagnon@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-04-22 08:00:54 -07:00
Ramkumar Ramachandra e495afcd74 builtin/log.c: make usage string consistent with doc
Replace '<since>..<until>' with '<revision range>', in accordance with
the documentation.

Signed-off-by: Ramkumar Ramachandra <artagnon@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-04-22 08:00:47 -07:00
Junio C Hamano ccc663bc24 git add: rephrase the "removal will cease to be ignored" warning
Now the logic to decide when to warn has been tightened, we know the
user is in a situation where the current and future behaviours will
be different.  Spell out what happens with these two versions and
how to explicitly ask for the behaviour, and suggest "git status" as
a way to inspect the current status.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-04-21 21:04:35 -07:00
Johan Herland fa83a33b22 checkout: Use remote refspecs when DWIMming tracking branches
The DWIM mode of checkout allows you to run "git checkout foo" when there
is no existing local ref or path called "foo", and there is exactly _one_
remote with a remote-tracking branch called "foo". Git will automatically
create a new local branch called "foo" using the remote-tracking "foo" as
its starting point and configured upstream.

For example, consider the following unconventional (but perfectly valid)
remote setup:

	[remote "origin"]
		fetch = refs/heads/*:refs/remotes/origin/*
	[remote "frotz"]
		fetch = refs/heads/*:refs/remotes/frotz/nitfol/*

Case 1: Assume both "origin" and "frotz" have remote-tracking branches called
"foo", at "refs/remotes/origin/foo" and "refs/remotes/frotz/nitfol/foo"
respectively. In this case "git checkout foo" should fail, because there is
more than one remote with a "foo" branch.

Case 2: Assume only "frotz" have a remote-tracking branch called "foo". In
this case "git checkout foo" should succeed, and create a local branch "foo"
from "refs/remotes/frotz/nitfol/foo", using remote branch "foo" from "frotz"
as its upstream.

The current code hardcodes the assumption that all remote-tracking branches
must match the "refs/remotes/$remote/*" pattern (which is true for remotes
with "conventional" refspecs, but not true for the "frotz" remote above).
When running "git checkout foo", the current code looks for exactly one ref
matching "refs/remotes/*/foo", hence in the above example, it fails to find
"refs/remotes/frotz/nitfol/foo", which causes it to fail both case #1 and #2.

The better way to handle the above example is to actually study the fetch
refspecs to deduce the candidate remote-tracking branches for "foo"; i.e.
assume "foo" is a remote branch being fetched, and then map "refs/heads/foo"
through the refspecs in order to get the corresponding remote-tracking
branches "refs/remotes/origin/foo" and "refs/remotes/frotz/nitfol/foo".
Finally we check which of these happens to exist in the local repo, and
if there is exactly one, we have an unambiguous match for "git checkout foo",
and may proceed.

This fixes most of the failing tests introduced in the previous patch.

Signed-off-by: Johan Herland <johan@herland.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-04-21 15:14:41 -07:00
Jeff King 49ecfa13fe receive-pack: close sideband fd on early pack errors
Since commit a22e6f8 (receive-pack: send pack-processing
stderr over sideband, 2012-09-21), receive-pack will start
an async sideband thread to copy the stderr from our
index-pack or unpack-objects child to the client. We hand
the thread's input descriptor to unpack(), which puts it in
the "err" member of the "struct child_process".

After unpack() returns, we use finish_async() to reap the
sideband thread. The thread is only ready to die when it
gets EOF on its pipe, which is connected to the err
descriptor. So we expect all of the write ends of that pipe
to be closed as part of unpack().

Normally, this works fine. After start_command forks, it
closes the parent copy of the descriptor. Then once the
child exits (whether it was successful or not), that closes
the only remaining writer.

However, there is one code-path in unpack() that does not
handle this. Before we decide which of unpack-objects or
index-pack to use, we read the pack header ourselves to see
how many objects it contains. If there is an error here, we
exit without running either sub-command, the pipe descriptor
remains open, and we are in a deadlock, waiting for the
sideband thread to die (which is in turn waiting for us to
close the pipe).

We can fix this by making sure that unpack() always closes
the pipe before returning.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-04-19 14:43:24 -07:00
Junio C Hamano de91daf5e6 Merge branch 'jn/add-2.0-u-A-sans-pathspec' (early part)
In Git 2.0, "git add -u" and "git add -A" without any pathspec will
update the index for all paths, including those outside the current
directory, making it more consistent with "commit -a".  To help the
migration pain, a warning is issued when the differences between the
current behaviour and the upcoming behaviour matters, i.e. when the
user has local changes outside the current directory.

* 'jn/add-2.0-u-A-sans-pathspec' (early part):
  add -A: only show pathless 'add -A' warning when changes exist outside cwd
  add -u: only show pathless 'add -u' warning when changes exist outside cwd
  add: make warn_pathless_add() a no-op after first call
  add: add a blank line at the end of pathless 'add [-u|-A]' warning
  add: make pathless 'add [-u|-A]' warning a file-global function
2013-04-19 13:37:36 -07:00
Junio C Hamano d7bffe9fb6 Merge branch 'ap/strbuf-humanize'
Teach "--human-readable" aka "-H" option to "git count-objects" to
show various large numbers in Ki/Mi/GiB scaled as necessary.

* ap/strbuf-humanize:
  count-objects: add -H option to humanize sizes
  strbuf: create strbuf_humanise_bytes() to show byte sizes
2013-04-19 13:31:27 -07:00
Junio C Hamano 4059da3352 Merge branch 'fc/branch-upstream-color'
Add more colors to "git branch -vv" output.

* fc/branch-upstream-color:
  branch: colour upstream branches
2013-04-19 13:31:24 -07:00
Nguyễn Thái Ngọc Duy 5a10d23658 pretty: save commit encoding from logmsg_reencode if the caller needs it
The commit encoding is parsed by logmsg_reencode, there's no need for
the caller to re-parse it again. The reencoded message now has the new
encoding, not the original one. The caller would need to read commit
object again before parsing.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-04-18 16:28:27 -07:00
Junio C Hamano e7e656c09a Merge branch 'jk/merge-tree-added-identically'
The resolution of some corner cases by "git merge-tree" were
inconsistent between top-of-the-tree and in a subdirectory.

* jk/merge-tree-added-identically:
  merge-tree: don't print entries that match "local"
2013-04-18 11:49:31 -07:00
Junio C Hamano 288aa7534a Merge branch 'fc/send-email-annotate'
Allows format-patch --cover-letter to be configurable; the most
notable is the "auto" mode to create cover-letter only for multi
patch series.

* fc/send-email-annotate:
  rebase-am: explicitly disable cover-letter
  format-patch: trivial cleanups
  format-patch: add format.coverLetter configuration variable
  log: update to OPT_BOOL
  format-patch: refactor branch name calculation
  format-patch: improve head calculation for cover-letter
  send-email: make annotate configurable
2013-04-18 11:49:11 -07:00
Junio C Hamano bd1184c6de Merge branch 'kb/co-orphan-suggestion-short-sha1'
Update the informational message when "git checkout" leaves the
detached head state.

* kb/co-orphan-suggestion-short-sha1:
  checkout: abbreviate hash in suggest_reattach
2013-04-18 11:46:33 -07:00
Junio C Hamano d226b14d47 git add: rework the logic to warn "git add <pathspec>..." default change
The earlier logic to warn against "git add subdir" that is run
without "-A" or "--no-all" was only to check any <pathspec> given
exactly spells a directory name that (still) exists on the
filesystem.  This had number of problems:

 * "git add '*dir'" (note that the wildcard is hidden from the
   shell) would not trigger the warning.

 * "git add '*.py'" would behave differently between the current
   version of Git and Git 2.0 for the same reason as "subdir", but
   would not trigger the warning.

 * "git add dir" for a submodule "dir" would just update the index
   entry for the submodule "dir" without ever recursing into it, and
   use of "-A" or "--no-all" would matter.  But the logic only
   checks the directory-ness of "dir" and gives an unnecessary
   warning.

Rework the logic to detect the case where the behaviour will be
different in Git 2.0, and issue a warning only when it matters.
Even with the code before this warning, "git add subdir" will have
to traverse the directory in order to find _new_ files the index
does not know about _anyway_, so we can do this check without adding
an extra pass to find if <pathspec> matches any removed file.

This essentially updates the "add_files_to_cache()" public API to
"update_files_in_cache()" API that is internal to "git add", because
with the "--all" option, the function is no longer about "adding"
paths to the cache, but is also used to remove them.

There are other callers of the former from "checkout" (used when
"checkout -m" prepares the temporary tree that represents the local
modifications to be merged) and "commit" ("commit --include" that
picks up local changes in addition to what is in the index).  Since
ADD_CACHE_IGNORE_ERRORS (aka "--no-all") is not used by either of
them, once dust settles after Git 2.0 and the warning becomes
unnecessary, we may want to unify these two functions again.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-04-17 17:42:48 -07:00
Junio C Hamano 3d27b9b005 date.c: add parse_expiry_date()
"git reflog --expire=all" tries to expire reflog entries up to the
current second, because the approxidate() parser gives the current
timestamp for anything it does not understand (and it does not know
what time "all" means).  When the user tells us to expire "all" (or
set the expiration time to "now"), the user wants to remove all the
reflog entries (no reflog entry should record future time).

Just set it to ULONG_MAX and to let everything that is older that
timestamp expire.

While at it, allow "now" to be treated the same way for callers that
parse expiry date timestamp with this function.  Also use an error
reporting version of approxidate() to report misspelled date.  When
the user says e.g. "--expire=mnoday" to delete entries two days or
older on Wednesday, we wouldn't want the "unknown, default to now"
logic to kick in.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-04-17 16:03:56 -07:00
René Scharfe de5abe9fe9 blame: handle broken commit headers gracefully
split_ident_line() can leave us with the pointers date_begin, date_end,
tz_begin and tz_end all set to NULL.  Check them before use and supply
the same fallback values as in the case of a negative return code from
split_ident_line().

The "(unknown)" is not actually shown in the output, though, because it
will be converted to a number (zero) eventually.

Signed-off-by: Rene Scharfe <rene.scharfe@lsrfire.ath.cx>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-04-17 14:50:45 -07:00
Jeff King 9cfa5126a0 cat-file: print tags raw for "cat-file -p"
When "cat-file -p" prints commits, it shows them in their
raw format, since git's format is already human-readable.
For tags, however, we print the whole thing raw except for
one thing: we convert the timestamp on the tagger line into a
human-readable date.

This dates all the way back to a0f15fa (Pretty-print tagger
dates, 2006-03-01). At that time there was no other way to
pretty-print a tag.  These days, however, neither of those
matters much. The normal way to pretty-print a tag is with
"git show", which is much more flexible than "cat-file -p".

Commit a0f15fa also built "verify-tag --verbose" (and
subsequently "tag -v") around the "cat-file -p" output.
However, that behavior was lost in commit 62e09ce (Make git
tag a builtin, 2007-07-20), and we went back to printing
the raw tag contents. Nobody seems to have noticed the bug
since then (and it is arguably a saner behavior anyway, as
it shows the actual bytes for which we verified the
signature).

Let's drop the tagger-date formatting for "cat-file -p". It
makes us more consistent with cat-file's commit
pretty-printer, and as a bonus, we can drop the hand-rolled
tag parsing code in cat-file (which happened to behave
inconsistently with the tag pretty-printing code elsewhere).

This is a change of output format, so it's possible that
some callers could considered this a regression. However,
the original behavior was arguably a bug (due to the
inconsistency with commits), likely nobody was relying on it
(even we do not use it ourselves these days), and anyone
relying on the "-p" pretty-printer should be able to expect
a change in the output format (i.e., while "cat-file" is
plumbing, the output format of "-p" was never guaranteed to
be stable).

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-04-17 14:48:45 -07:00
Junio C Hamano 948cf4f5e5 Merge branch 'rt/commentchar-fmt-merge-msg'
The new core.commentchar configuration was not applied to a few
places.

* rt/commentchar-fmt-merge-msg:
  fmt-merge-msg: use core.commentchar in tag signatures completely
  fmt-merge-msg: respect core.commentchar in people credits
2013-04-15 12:40:56 -07:00
Junio C Hamano 51ff04baad Merge branch 'jk/show-branch-strbuf'
"git show-branch" was not prepared to show a very long run of
ancestor operators e.g. foobar^2~2^2^2^2...^2~4 correctly.

* jk/show-branch-strbuf:
  show-branch: use strbuf instead of static buffer
2013-04-15 12:40:49 -07:00
Karsten Blees 0aaf62b6e0 dir.c: git-status --ignored: don't scan the work tree twice
'git-status --ignored' still scans the work tree twice to collect
untracked and ignored files, respectively.

fill_directory / read_directory already supports collecting untracked and
ignored files in a single directory scan. However, the DIR_COLLECT_IGNORED
flag to enable this has some git-add specific side-effects (e.g. it
doesn't recurse into ignored directories, so listing ignored files with
--untracked=all doesn't work).

The DIR_SHOW_IGNORED flag doesn't list untracked files and returns ignored
files in dir_struct.entries[] (instead of dir_struct.ignored[] as
DIR_COLLECT_IGNORED). DIR_SHOW_IGNORED is used all throughout git.

We don't want to break the existing API, so lets introduce a new flag
DIR_SHOW_IGNORED_TOO that lists untracked as well as ignored files similar
to DIR_COLLECT_FILES, but will recurse into sub-directories based on the
other flags as DIR_SHOW_IGNORED does.

In dir.c::read_directory_recursive, add ignored files to either
dir_struct.entries[] or dir_struct.ignored[] based on the flags. Also move
the DIR_COLLECT_IGNORED case here so that filling result lists is in a
common place.

In wt-status.c::wt_status_collect_untracked, use the new flag and read
results from dir_struct.ignored[]. Remove the extra fill_directory call.

builtin/check-ignore.c doesn't call fill_directory, setting the git-add
specific DIR_COLLECT_IGNORED flag has no effect here. Remove for clarity.

Update API documentation to reflect the changes.

Performance: with this patch, 'git-status --ignored' is typically as fast
as 'git-status'.

Signed-off-by: Karsten Blees <blees@dcon.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-04-15 12:36:42 -07:00
Karsten Blees b07bc8c8c3 dir.c: replace is_path_excluded with now equivalent is_excluded API
Signed-off-by: Karsten Blees <blees@dcon.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-04-15 12:34:01 -07:00
Felipe Contreras dbda21fa87 branch: colour upstream branches
Otherwise when using 'git branch -vv' it's hard to see them among so
much output.

Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-04-15 11:04:44 -07:00
John Keeping cd16c59bfa fast-export: add --signed-tags=warn-strip mode
This issues a warning while stripping signatures from signed tags, which
allows us to use it as default behaviour for remote helpers which cannot
specify how to handle signed tags.

Signed-off-by: John Keeping <john@keeping.me.uk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-04-15 09:02:25 -07:00
Nguyễn Thái Ngọc Duy 08d595dc1c checkout: add --ignore-skip-worktree-bits in sparse checkout mode
"git checkout -- <paths>" is usually used to restore all modified
files in <paths>. In sparse checkout mode, this command is overloaded
with another meaning: to add back all files in <paths> that are
excluded by sparse patterns.

As the former makes more sense for day-to-day use. Switch it to the
default and the latter enabled with --ignore-skip-worktree-bits.

While at there, add info/sparse-checkout to gitrepository-layout.txt

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-04-15 08:54:45 -07:00
Jonathan Nieder 4698c8feb1 config: allow inaccessible configuration under $HOME
The changes v1.7.12.1~2^2~4 (config: warn on inaccessible files,
2012-08-21) and v1.8.1.1~22^2~2 (config: treat user and xdg config
permission problems as errors, 2012-10-13) were intended to prevent
important configuration (think "[transfer] fsckobjects") from being
ignored when the configuration is unintentionally unreadable (for
example with EIO on a flaky filesystem, or with ENOMEM due to a DoS
attack).  Usually ~/.gitconfig and ~/.config/git are readable by the
current user, and if they aren't then it would be easy to fix those
permissions, so the damage from adding this check should have been
minimal.

Unfortunately the access() check often trips when git is being run as
a server.  A daemon (such as inetd or git-daemon) starts as "root",
creates a listening socket, and then drops privileges, meaning that
when git commands are invoked they cannot access $HOME and die with

 fatal: unable to access '/root/.config/git/config': Permission denied

Any patch to fix this would have one of three problems:

  1. We annoy sysadmins who need to take an extra step to handle HOME
     when dropping privileges (the current behavior, or any other
     proposal that they have to opt into).

  2. We annoy sysadmins who want to set HOME when dropping privileges,
     either by making what they want to do impossible, or making them
     set an extra variable or option to accomplish what used to work
     (e.g., a patch to git-daemon to set HOME when --user is passed).

  3. We loosen the check, so some cases which might be noteworthy are
     not caught.

This patch is of type (3).

Treat user and xdg configuration that are inaccessible due to
permissions (EACCES) as though no user configuration was provided at
all.

An alternative method would be to check if $HOME is readable, but that
would not help in cases where the user who dropped privileges had a
globally readable HOME with only .config or .gitconfig being private.

This does not change the behavior when /etc/gitconfig or .git/config
is unreadable (since those are more serious configuration errors),
nor when ~/.gitconfig or ~/.config/git is unreadable due to problems
other than permissions.

Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Improved-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-04-15 07:26:50 -07:00
Junio C Hamano 85e7e81ccf Merge branch 'po/help-guides'
Finishing touches.

* po/help-guides:
  help: mark common_guides[] as translatable
2013-04-14 23:33:17 -07:00
Junio C Hamano caa7d79f1f Sync with 'maint'
* maint:
  Correct common spelling mistakes in comments and tests
  kwset: fix spelling in comments
  precompose-utf8: fix spelling of "want" in error message
  compat/nedmalloc: fix spelling in comments
  compat/regex: fix spelling and grammar in comments
  obstack: fix spelling of similar
  contrib/subtree: fix spelling of accidentally
  git-remote-mediawiki: spelling fixes
  doc: various spelling fixes
  fast-export: fix argument name in error messages
  Documentation: distinguish between ref and offset deltas in pack-format
  i18n: make the translation of -u advice in one go
2013-04-12 13:54:01 -07:00
Stefano Lattarini 41ccfdd9c9 Correct common spelling mistakes in comments and tests
Most of these were found using Lucas De Marchi's codespell tool.

Signed-off-by: Stefano Lattarini <stefano.lattarini@gmail.com>
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Acked-by: Matthieu Moy <Matthieu.Moy@imag.fr>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-04-12 13:38:40 -07:00
Junio C Hamano 7f20008d14 Merge branch 'maint-1.8.1' into maint
* maint-1.8.1:
  fast-export: fix argument name in error messages
  Documentation: distinguish between ref and offset deltas in pack-format
2013-04-12 11:48:38 -07:00
Simon Ruderich 3561e605bc help: mark common_guides[] as translatable
Signed-off-by: Simon Ruderich <simon@ruderich.org>
Acked-by: Philip Oakley <philipoakley@iee.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-04-12 09:49:00 -07:00
Paul Price 04a74b6cfa fast-export: fix argument name in error messages
The --signed-tags argument is plural, while error messages referred
to --signed-tag (singular).  Tweak error messages to correspond to the
argument.

Signed-off-by: Paul Price <price@astro.princeton.edu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-04-12 09:48:46 -07:00
Junio C Hamano b3569933dd Merge branch 'po/help-guides'
"git help" learned "-g" option to show the list of guides just like
list of commands are given with "-a".

* po/help-guides:
  doc: include --guide option description for "git help"
  help: mention -a and -g option, and 'git help <concept>' usage.
  builtin/help.c: add list_common_guides_help() function
  builtin/help.c: add --guide option
  builtin/help.c: split "-a" processing into two
2013-04-11 17:41:00 -07:00
Adam Spiers 0c8e8c080b check-ignore: allow incremental streaming of queries via --stdin
Some callers, such as the git-annex web assistant, find it useful to
invoke git check-ignore as a persistent background process, which can
then have queries fed to its STDIN at any point, and the corresponding
response consumed from its STDOUT.  For this we need to invoke
check_ignore() once per line of standard input, and flush standard
output after each result.

The above use case suggests that empty STDIN is actually a reasonable
scenario (e.g. when the caller doesn't know in advance whether any
queries need to be fed to the background process until after it's
already started), so we make the minor behavioural change that "no
pathspec given." is no longer emitted in when STDIN is empty.

Even though check_ignore() could now be changed to operate on a single
pathspec, we keep it operating on an array of pathspecs since that is
a more convenient way of consuming the existing pathspec API.

Signed-off-by: Adam Spiers <git@adamspiers.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-04-11 11:01:59 -07:00
Adam Spiers 0006d85c3a check-ignore: move setup into cmd_check_ignore()
Initialisation of the dir_struct and path_exclude_check structs was
previously done within check_ignore().  This was acceptable since
check_ignore() was only called once per check-ignore invocation;
however the next commit will convert it into an inner loop which is
called once per line of STDIN when --stdin is given.  Therefore moving
the initialisation code out into cmd_check_ignore() ensures that
initialisation is still only performed once per check-ignore
invocation, and consequently that the output is identical whether
pathspecs are provided as CLI arguments or via STDIN.

Signed-off-by: Adam Spiers <git@adamspiers.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-04-11 11:01:58 -07:00
Adam Spiers ae3caf4c91 check-ignore: add -n / --non-matching option
If `-n` or `--non-matching` are specified, non-matching pathnames will
also be output, in which case all fields in each output record except
for <pathname> will be empty.  This can be useful when running
check-ignore as a background process, so that files can be
incrementally streamed to STDIN, and for each of these files, STDOUT
will indicate whether that file matched a pattern or not.  (Without
this option, it would be impossible to tell whether the absence of
output for a given file meant that it didn't match any pattern, or
that the result simply hadn't been flushed to STDOUT yet.)

Signed-off-by: Adam Spiers <git@adamspiers.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-04-11 11:01:58 -07:00
Antoine Pelisse 1918225d2f count-objects: add -H option to humanize sizes
Use the new humanize() function to print loose objects size, pack size,
and garbage size in verbose mode, or loose objects size in regular mode.
This patch doesn't change the way anything is displayed when the option
is not used.

Also update the documentation.

Signed-off-by: Antoine Pelisse <apelisse@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-04-10 13:27:26 -07:00
Aaron Schrab b552b56df2 clone: Allow repo using gitfile as a reference
Try reading gitfile files when processing --reference options to clone.
This will allow, among other things, using a submodule checked out with
a recent version of git as a reference repository without requiring the
user to have internal knowledge of submodule layout.

Signed-off-by: Aaron Schrab <aaron@schrab.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-04-09 15:40:00 -07:00
Aaron Schrab 0658569eb0 clone: Fix error message for reference repository
Do not report that an argument to clone's --reference option is not a
local directory.  Nothing checks for the existence or type of the path
as supplied by the user; checks are only done for particular contents of
the supposed directory, so we have no way to know the status of the
supplied path.  Telling the user that a directory doesn't exist when
that isn't actually known may lead him or her on the wrong path to
finding the problem.

Instead just state that the entered path is not a local repository which
is really all that is known about it.  It could be more helpful to state
the actual paths which were checked, but I believe that giving a good
description of that would be too verbose for a simple error message and
would be too dependent on implementation details.

Signed-off-by: Aaron Schrab <aaron@schrab.com>
Reviewed-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-04-08 20:57:43 -07:00
Kevin Bracey d6e1466095 checkout: abbreviate hash in suggest_reattach
After printing the list of left-behind commits (with abbreviated
hashes), use an abbreviated hash in the suggested 'git branch' command;
there's no point in outputting a full 40-character hex string in some
friendly advice.

Signed-off-by: Kevin Bracey <kevin@bracey.fi>
Acked-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-04-08 16:25:50 -07:00
John Keeping aacecc3b36 merge-tree: don't print entries that match "local"
The documentation says:

	the output from the command omits entries that match the
	<branch1> tree.

But currently "added in branch1" and "removed in branch1" (both while
unchanged in branch2) do print output.  Change this so that the
behaviour matches the documentation.

Signed-off-by: John Keeping <john@keeping.me.uk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-04-08 10:50:52 -07:00
Junio C Hamano 0f3d66c6dc Merge branch 'jk/rm-removed-paths'
A handful of test cases and a corner case bugfix for "git rm".

* jk/rm-removed-paths:
  t3600: document failure of rm across symbolic links
  t3600: test behavior of reverse-d/f conflict
  rm: do not complain about d/f conflicts during deletion
2013-04-07 14:33:14 -07:00
Junio C Hamano 4d35924e3a Merge branch 'rr/triangle'
Support "pull from one place, push to another place" workflow
better by introducing remote.pushdefault (overrides the "origin"
thing) and branch.*.pushremote (overrides the branch.*.remote).

* rr/triangle:
  remote.c: introduce branch.<name>.pushremote
  remote.c: introduce remote.pushdefault
  remote.c: introduce a way to have different remotes for fetch/push
  t5516 (fetch-push): drop implicit arguments from helper functions
  t5516 (fetch-push): update test description
  remote.c: simplify a bit of code using git_config_string()
2013-04-07 14:32:50 -07:00
Felipe Contreras d7ddad012b format-patch: trivial cleanups
Now that the cover-letter code has been shuffled, we can do some
cleanups.

Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-04-07 13:39:17 -07:00
Felipe Contreras 2a4c26076c format-patch: add format.coverLetter configuration variable
Also, add a new option: 'auto', so if there's more than one patch, the
cover letter is generated, otherwise it's not.

Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-04-07 13:37:47 -07:00
Felipe Contreras aa089cd9ab log: update to OPT_BOOL
OPT_BOOLEAN is deprecated, and this is what we want.

Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-04-07 13:34:26 -07:00
Felipe Contreras 427a8ec5e7 format-patch: refactor branch name calculation
By moving the part that relies on rev->pending earlier, where we are
already checking the special case where there's only one ref.

Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-04-07 13:33:45 -07:00
Felipe Contreras 80d35ca0aa format-patch: improve head calculation for cover-letter
If we do it after the revision traversal we can be sure that this is
indeed a commit that will be processed (i.e. not a merge) and it's the
top most one (thus removing the NEEDSWORK comment, at least we show the
same as 'git diff --stat' output that appears in the cover-letter).

While we are at it, since we know there's nothing to generate, exit
sooner in all cases, like --cover-letter currently does.

Also, if there's nothing to generate and cover-letter is specified, a
different code-path might be triggered that is not currently covered in
the test-case, so add a test for it.

Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-04-07 13:32:41 -07:00
Ralf Thielow 89c3bbd808 fmt-merge-msg: use core.commentchar in tag signatures completely
Commit eff80a9 (Allow custom "comment char") introduced a custom
comment character for commit messages but didn't use it completely
in the tag signature part.

This commit fixes that.

Signed-off-by: Ralf Thielow <ralf.thielow@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-04-07 09:30:39 -07:00
Ralf Thielow 9927ebed19 fmt-merge-msg: respect core.commentchar in people credits
Commit eff80a9 (Allow custom "comment char") introduced a custom
comment character for commit messages but forgot to use it in
people credits which can be a part of a commit message.

With this commit, the custom comment character is also used
in people credits.

Signed-off-by: Ralf Thielow <ralf.thielow@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-04-07 09:28:29 -07:00
Antoine Pelisse c4458ecdc5 fast-export: Allow pruned-references in mark file
fast-export can fail because of some pruned-reference when importing a
mark file.

The problem happens in the following scenario:

    $ git fast-export --export-marks=MARKS master
    (rewrite master)
    $ git prune
    $ git fast-export --import-marks=MARKS master

This might fail if some references have been removed by prune
because some marks will refer to no longer existing commits.
git-fast-export will not need these objects anyway as they were no
longer reachable.

We still need to update last_numid so we don't change the mapping
between marks and objects for remote-helpers.
Unfortunately, the mark file should not be rewritten without lost marks
if no new objects has been exported, as we could lose track of the last
last_numid.

Signed-off-by: Antoine Pelisse <apelisse@gmail.com>
Reviewed-by: Felipe Contreras <felipe.contreras@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-04-07 00:40:23 -07:00
Jeff King aaa07e3eee show-branch: use strbuf instead of static buffer
When we generate relative names (e.g., "master~20^2"), we
format the name into a static buffer, then xstrdup the
result to attach it to the commit. Since the first thing we
add into the static buffer is the already-computed name of
the child commit, the names may get longer and longer as
the traversal gets deeper, and we may eventually overflow
the fixed-size buffer.

Fix this by converting the fixed-size buffer into a dynamic
strbuf.  The performance implications should be minimal, as
we end up allocating a heap copy of the name anyway (and now
we can just detach the heap copy from the strbuf).

Reported-by: Eric Roman <eroman@chromium.org>
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-04-06 18:57:15 -07:00
Junio C Hamano d5fec92a7a Merge branch 'sg/gpg-sig'
Teach "merge/pull" to optionally verify and reject commits that are
not signed properly.

* sg/gpg-sig:
  pretty printing: extend %G? to include 'N' and 'U'
  merge/pull Check for untrusted good GPG signatures
  merge/pull: verify GPG signatures of commits being merged
  commit.c/GPG signature verification: Also look at the first GPG status line
  Move commit GPG signature verification to commit.c
2013-04-05 14:15:16 -07:00
Junio C Hamano e636241fdb Merge branch 'jc/merge-tag-object'
"git merge $(git rev-parse v1.8.2)" behaved quite differently from
"git merge v1.8.2" as if v1.8.2 were written as v1.8.2^0 and did
not pay much attention to the annotated tag payload.

This makes the code notice the type of the tag object, in addition
to the dwim_ref() based classification the current code uses
(i.e. the name appears in refs/tags/) to decide when to special
case merging of tags.

* jc/merge-tag-object:
  t6200: test message for merging of an annotated tag
  t6200: use test_config/test_unconfig
  merge: a random object may not necssarily be a commit
2013-04-05 14:14:41 -07:00
Junio C Hamano f4df84de62 Merge branch 'nd/index-pack-threaded-fixes' into maint
* nd/index-pack-threaded-fixes:
  index-pack: guard nr_resolved_deltas reads by lock
  index-pack: protect deepest_delta in multithread code
2013-04-04 13:00:41 -07:00
Junio C Hamano 68447f04f4 Merge branch 'jk/index-pack-correct-depth-fix' into maint
* jk/index-pack-correct-depth-fix:
  index-pack: always zero-initialize object_entry list
2013-04-04 13:00:37 -07:00
Jeff King 9a6728d4d1 rm: do not complain about d/f conflicts during deletion
If we used to have an index entry "d/f", but "d" has been
replaced by a non-directory entry, the user may still want
to run "git rm" to delete the stale index entry. They could
use "git rm --cached" to just touch the index, but "git rm"
should also work: we explicitly try to handle the case that
the file has already been removed from the working tree.

However, because unlinking "d/f" in this case will not yield
ENOENT, but rather ENOTDIR, we do not notice that the file
is already gone. Instead, we report it as an error.

The simple solution is to treat ENOTDIR in this case exactly
like ENOENT; all we want to know is whether the file is
already gone, and if a leading path is no longer a
directory, then by definition the sub-path is gone.

Reported-by: jpinheiro <7jpinheiro@gmail.com>
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-04-04 12:28:47 -07:00
Jonathan Nieder 9df84e94ed add -A: only show pathless 'add -A' warning when changes exist outside cwd
In the spirit of the recent similar change for 'git add -u', avoid
pestering users that restrict their attention to a subdirectory and
will not be affected by the coming change in the behavior of pathless
'git add -A'.

Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-04-03 11:34:22 -07:00
Jonathan Nieder 71c7b0538f add -u: only show pathless 'add -u' warning when changes exist outside cwd
A common workflow in large projects is to chdir into a subdirectory of
interest and only do work there:

	cd src
	vi foo.c
	make test
	git add -u
	git commit

The upcoming change to 'git add -u' behavior would not affect such a
workflow: when the only changes present are in the current directory,
'git add -u' will add all changes, and whether that happens via an
implicit "." or implicit ":/" parameter is an unimportant
implementation detail.

The warning about use of 'git add -u' with no pathspec is annoying
because it seemingly serves no purpose in this case.  So suppress the
warning unless there are changes outside the cwd that are not being
added.

A previous version of this patch ran two I/O-intensive diff-files
passes: one to find changes outside the cwd, and another to find
changes to add to the index within the cwd.  This version runs one
full-tree diff and decides for each change whether to add it or warn
and suppress it in update_callback.  As a result, even on very large
repositories "git add -u" will not be significantly slower than the
future default behavior ("git add -u :/"), and the slowdown relative
to "git add -u ." should be a useful clue to users of such
repositories to get into the habit of explicitly passing '.'.

Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Acked-by: Jeff King <peff@peff.net>
Improved-by: Junio C Hamano <gitster@pobox.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-04-03 11:34:22 -07:00
Jonathan Nieder 16d41d4218 add: make warn_pathless_add() a no-op after first call
Make warn_pathless_add() print its warning the first time it is called
and do nothing if called again.  This will make it easier to show the
warning on the fly when a relevant condition is detected without
risking showing it multiple times when multiple such conditions hold.

Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-04-03 11:34:22 -07:00
Matthieu Moy c9f35b8b50 add: add a blank line at the end of pathless 'add [-u|-A]' warning
When the commands give an actual output (e.g. when ran with -v), the
output is visually mixed with the warning.

An additional blank line makes the actual output more visible.

Signed-off-by: Matthieu Moy <Matthieu.Moy@imag.fr>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-04-03 11:34:18 -07:00
Junio C Hamano 8054b9a615 Merge branch 'jm/branch-rename-nothing-error'
"git branch -m" without any argument noticed an error, but with an
incorrect error message.

* jm/branch-rename-nothing-error:
  branch: give better message when no names specified for rename
2013-04-03 09:34:40 -07:00
Junio C Hamano b9c78e9723 Merge branch 'jk/check-corrupt-objects-carefully'
Have the streaming interface and other codepaths more carefully
examine for corrupt objects.

* jk/check-corrupt-objects-carefully:
  clone: leave repo in place after checkout errors
  clone: run check_everything_connected
  clone: die on errors from unpack_trees
  add tests for cloning corrupted repositories
  streaming_write_entry: propagate streaming errors
  add test for streaming corrupt blobs
  avoid infinite loop in read_istream_loose
  read_istream_filtered: propagate read error from upstream
  check_sha1_signature: check return value from read_istream
  stream_blob_to_fd: detect errors reading from stream
2013-04-03 09:34:29 -07:00
Junio C Hamano a70f4cb5b0 Merge branch 'jc/apply-ws-fix-tab-in-indent'
"git apply --whitespace=fix" was not prepared to see a line getting
longer after fixing whitespaces (e.g. tab-in-indent aka Python).

* jc/apply-ws-fix-tab-in-indent:
  test: resurrect q_to_tab
  apply --whitespace=fix: avoid running over the postimage buffer
2013-04-03 09:34:22 -07:00
Junio C Hamano 97fefaf6d3 Merge branch 'nd/checkout-paths-reduce-match-pathspec-calls'
Consolidate repeated pathspec matches on the same paths, while
fixing a bug in "git checkout dir/" code started from an unmerged
index.

* nd/checkout-paths-reduce-match-pathspec-calls:
  checkout: avoid unnecessary match_pathspec calls
2013-04-03 09:34:00 -07:00
Junio C Hamano b771d8d7cf Merge branch 'mg/gpg-interface-using-status' into maint
Verification of signed tags were not done correctly when not in C
or en/US locale.

* mg/gpg-interface-using-status:
  pretty: make %GK output the signing key for signed commits
  pretty: parse the gpg status lines rather than the output
  gpg_interface: allow to request status return
  log-tree: rely upon the check in the gpg_interface
  gpg-interface: check good signature in a reliable way
2013-04-03 09:26:27 -07:00
Junio C Hamano 14c79b1faa Merge branch 'bc/commit-complete-lines-given-via-m-option' into maint
'git commit -m "$msg"' used to add an extra newline even when
$msg already ended with one.

* bc/commit-complete-lines-given-via-m-option:
  Documentation/git-commit.txt: rework the --cleanup section
  git-commit: only append a newline to -m mesg if necessary
  t7502: demonstrate breakage with a commit message with trailing newlines
  t/t7502: compare entire commit message with what was expected
2013-04-03 09:26:07 -07:00
Junio C Hamano 295e3938fc Merge branch 'jc/describe' into maint
The "--match=<pattern>" option of "git describe", when used with
"--all" to allow refs that are not annotated tags to be used as a
base of description, did not restrict the output from the command to
those that match the given pattern.

* jc/describe:
  describe: --match=<pattern> must limit the refs even when used with --all
2013-04-03 09:25:52 -07:00
Junio C Hamano 9e72a56699 Merge branch 'ph/tag-force-no-warn-on-creation' into maint
"git tag -f <tag>" always said "Updated tag '<tag>'" even when
creating a new tag (i.e. not overwriting nor updating).

* ph/tag-force-no-warn-on-creation:
  tag: --force does not have to warn when creating tags
2013-04-03 09:24:51 -07:00
Junio C Hamano 92e0d91632 Sync with 1.8.1 maintenance track
* maint-1.8.1:
  Start preparing for 1.8.1.6
  git-tag(1): we tag HEAD by default
  Fix revision walk for commits with the same dates
  t2003: work around path mangling issue on Windows
  pack-refs: add fully-peeled trait
  pack-refs: write peeled entry for non-tags
  use parse_object_or_die instead of die("bad object")
  avoid segfaults on parse_object failure
  entry: fix filter lookup
  t2003: modernize style
  name-hash.c: fix endless loop with core.ignorecase=true
2013-04-03 09:18:01 -07:00
Junio C Hamano f1ad05f3a5 Merge branch 'jk/fully-peeled-packed-ref' into maint-1.8.1
* jk/fully-peeled-packed-ref:
  pack-refs: add fully-peeled trait
  pack-refs: write peeled entry for non-tags
  use parse_object_or_die instead of die("bad object")
  avoid segfaults on parse_object failure
2013-04-03 08:43:03 -07:00
Junio C Hamano 357d7f11ba Merge branch 'ap/maint-update-index-h-is-for-help' into maint-1.8.1
* ap/maint-update-index-h-is-for-help:
  update-index: allow "-h" to also display options
2013-04-03 08:36:10 -07:00
Junio C Hamano f4254d1fb2 Merge branch 'nd/index-pack-l10n-buf-overflow' into maint-1.8.1
* nd/index-pack-l10n-buf-overflow:
  index-pack: fix buffer overflow caused by translations
2013-04-03 08:35:06 -07:00
Philip Oakley 002b726a40 builtin/help.c: add list_common_guides_help() function
This implements what "help -g" introduced in the previous step does.

Signed-off-by: Philip Oakley <philipoakley@iee.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-04-02 18:09:30 -07:00
Philip Oakley 65f98358c0 builtin/help.c: add --guide option
Logic, but no actions, included.

The --all commands option, if given, will display the list of
available commands.

The --guide option's list of guides will then be displayed.

The common commands list is only displayed if neither option, nor a
command or guide name, is given.

Signed-off-by: Philip Oakley <philipoakley@iee.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-04-02 18:01:31 -07:00
Philip Oakley 15f7d49438 builtin/help.c: split "-a" processing into two
"help -a" (help all) gives the list of available commands and then
further gives hints on the use of "git help".   Separate these into
two steps, because we will add "help -g" (help guides) that want to
also show the overall hints after it is done.

While at it, change the definition of the "-a" option to use OPT_BOOL,
not the deprecated OPT_BOOLEAN.  We do not behave differently when
the user gives the "-a" option multiple times, e.g. "git help -a -a".

Signed-off-by: Philip Oakley <philipoakley@iee.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-04-02 17:58:24 -07:00
Junio C Hamano 68ef16b848 Merge branch 'js/log-gpg'
Teach "show/log" honor gpg.program configuration just like other
parts of the code that use GnuPG.

* js/log-gpg:
  log: read gpg settings for signed commit verification
2013-04-02 15:10:49 -07:00
Junio C Hamano c5f05b2356 Merge branch 'bk/document-commit-tree-S'
* bk/document-commit-tree-S:
  commit-tree: document -S option consistently
2013-04-02 15:09:43 -07:00
Ramkumar Ramachandra f24f715e05 remote.c: introduce a way to have different remotes for fetch/push
Currently, do_push() in push.c calls remote_get(), which gets the
configured remote for fetching and pushing.  Replace this call with a
call to pushremote_get() instead, a new function that will return the
remote configured specifically for pushing.  This function tries to
work with the string pushremote_name, before falling back to the
codepath of remote_get().  This patch has no visible impact, but
serves to enable future patches to introduce configuration variables
to set pushremote_name.  For example, you can now do the following in
handle_config():

    if (!strcmp(key, "remote.pushdefault"))
       git_config_string(&pushremote_name, key, value);

Then, pushes will automatically go to the remote specified by
remote.pushdefault.

Signed-off-by: Ramkumar Ramachandra <artagnon@gmail.com>
Reviewed-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-04-02 10:41:42 -07:00
Junio C Hamano 1d066c58ee Merge branch 'nd/index-pack-threaded-fixes'
"index-pack --verify-stat" used a few counters outside protection
of mutex, possibly showing incorrect numbers.

* nd/index-pack-threaded-fixes:
  index-pack: guard nr_resolved_deltas reads by lock
  index-pack: protect deepest_delta in multithread code
2013-04-01 09:06:23 -07:00
Junio C Hamano ed8852c286 Merge branch 'jk/index-pack-correct-depth-fix'
"index-pack --fix-thin" used uninitialize value to compute delta
depths of objects it appends to the resulting pack.

* jk/index-pack-correct-depth-fix:
  index-pack: always zero-initialize object_entry list
2013-04-01 09:06:19 -07:00
Junio C Hamano afc2e81247 Merge branch 'nd/branch-show-rebase-bisect-state'
Add a bit more information to "git status" during a rebase/bisect
session.

* nd/branch-show-rebase-bisect-state:
  status, branch: fix the misleading "bisecting" message
  branch: show more information when HEAD is detached
  status: show more info than "currently not on any branch"
  wt-status: move wt_status_get_state() out to wt_status_print()
  wt-status: split wt_status_state parsing function out
  wt-status: move strbuf into read_and_strip_branch()
2013-04-01 09:05:45 -07:00
Junio C Hamano e013bdab0f Merge branch 'jk/pkt-line-cleanup'
Clean up pkt-line API, implementation and its callers to make them
more robust.

* jk/pkt-line-cleanup:
  do not use GIT_TRACE_PACKET=3 in tests
  remote-curl: always parse incoming refs
  remote-curl: move ref-parsing code up in file
  remote-curl: pass buffer straight to get_remote_heads
  teach get_remote_heads to read from a memory buffer
  pkt-line: share buffer/descriptor reading implementation
  pkt-line: provide a LARGE_PACKET_MAX static buffer
  pkt-line: move LARGE_PACKET_MAX definition from sideband
  pkt-line: teach packet_read_line to chomp newlines
  pkt-line: provide a generic reading function with options
  pkt-line: drop safe_write function
  pkt-line: move a misplaced comment
  write_or_die: raise SIGPIPE when we get EPIPE
  upload-archive: use argv_array to store client arguments
  upload-archive: do not copy repo name
  send-pack: prefer prefixcmp over memcmp in receive_status
  fetch-pack: fix out-of-bounds buffer offset in get_ack
  upload-pack: remove packet debugging harness
  upload-pack: do not add duplicate objects to shallow list
  upload-pack: use get_sha1_hex to parse "shallow" lines
2013-04-01 08:59:37 -07:00
Junio C Hamano 900c8ecb5c Merge branch 'bc/append-signed-off-by'
Consolidate codepaths that inspect log-message-to-be and decide to
add a new Signed-off-by line in various commands.

* bc/append-signed-off-by:
  git-commit: populate the edit buffer with 2 blank lines before s-o-b
  Unify appending signoff in format-patch, commit and sequencer
  format-patch: update append_signoff prototype
  t4014: more tests about appending s-o-b lines
  sequencer.c: teach append_signoff to avoid adding a duplicate newline
  sequencer.c: teach append_signoff how to detect duplicate s-o-b
  sequencer.c: always separate "(cherry picked from" from commit body
  sequencer.c: require a conforming footer to be preceded by a blank line
  sequencer.c: recognize "(cherry picked from ..." as part of s-o-b footer
  t/t3511: add some tests of 'cherry-pick -s' functionality
  t/test-lib-functions.sh: allow to specify the tag name to test_commit
  commit, cherry-pick -s: remove broken support for multiline rfc2822 fields
  sequencer.c: rework search for start of footer to improve clarity
2013-04-01 08:59:24 -07:00
Sebastian Götte eb307ae7bb merge/pull Check for untrusted good GPG signatures
When --verify-signatures is specified, abort the merge in case a good
GPG signature from an untrusted key is encountered.

Signed-off-by: Sebastian Götte <jaseg@physik-pool.tu-berlin.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-03-31 22:38:49 -07:00
Jonathon Mah d1520c4b1a branch: give better message when no names specified for rename
Signed-off-by: Jonathon Mah <me@JonathonMah.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-03-31 19:58:02 -07:00
Junio C Hamano a32a0c29df Merge branch 'maint'
* maint:
  cat-file: Fix an gcc -Wuninitialized warning
  fast-import: Fix an gcc -Wuninitialized warning
2013-03-31 19:27:54 -07:00
Sebastian Götte efed002249 merge/pull: verify GPG signatures of commits being merged
When --verify-signatures is specified on the command-line of git-merge
or git-pull, check whether the commits being merged have good gpg
signatures and abort the merge in case they do not. This allows e.g.
auto-deployment from untrusted repo hosts.

Signed-off-by: Sebastian Götte <jaseg@physik-pool.tu-berlin.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-03-31 19:23:59 -07:00
Ramsay Jones 803a777942 cat-file: Fix an gcc -Wuninitialized warning
After commit cbfd5e1c ("drop some obsolete "x = x" compiler warning
hacks", 21-03-2013) removed a gcc specific hack, older versions of
gcc now issue an "'contents' might be used uninitialized" warning.
In order to suppress the warning, we simply initialize the variable
to NULL in it's declaration.

Signed-off-by: Ramsay Jones <ramsay@ramsay1.demon.co.uk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-03-29 23:47:00 -07:00
Jeff King d3b34622f6 clone: leave repo in place after checkout errors
If we manage to clone a remote repository but run into an
error in the checkout, it is probably sane to leave the repo
directory in place. That lets the user examine the situation
without spending time to re-clone from the remote (which may
be a lengthy process).

Rather than try to convert each die() from the checkout code
path into an error(), we simply set a flag that tells the
"remove_junk" atexit function to print a helpful message and
leave the repo in place.

Note that the test added in this patch actually passes
without the code change. The reason is that the cleanup code
is buggy; we chdir into the working tree for the checkout,
but still may use relative paths to remove the directories
(which means if you cloned into "foo", we would accidentally
remove "foo" from the working tree!).  There's no point in
fixing it now, since this patch means we will never try to
remove anything after the chdir, anyway.

[jc: replaced the message with a more succinct version from
Jonathan]

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-03-29 15:20:55 -07:00
Thomas Rast 13b8f68c1f log -L: :pattern:file syntax to find by funcname
This new syntax finds a funcname matching /pattern/, and then takes from there
up to (but not including) the next funcname.  So you can say

  git log -L:main:main.c

and it will dig up the main() function and show its line-log, provided
there are no other funcnames matching 'main'.

Signed-off-by: Thomas Rast <trast@student.ethz.ch>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-03-28 10:30:04 -07:00
Thomas Rast 12da1d1f6f Implement line-history search (git log -L)
This is a rewrite of much of Bo's work, mainly in an effort to split
it into smaller, easier to understand routines.

The algorithm is built around the struct range_set, which encodes a
series of line ranges as intervals [a,b).  This is used in two
contexts:

* A set of lines we are tracking (which will change as we dig through
  history).
* To encode diffs, as pairs of ranges.

The main routine is range_set_map_across_diff().  It processes the
diff between a commit C and some parent P.  It determines which diff
hunks are relevant to the ranges tracked in C, and computes the new
ranges for P.

The algorithm is then simply to process history in topological order
from newest to oldest, computing ranges and (partial) diffs.  At
branch points, we need to merge the ranges we are watching.  We will
find that many commits do not affect the chosen ranges, and mark them
TREESAME (in addition to those already filtered by pathspec limiting).
Another pass of history simplification then gets rid of such commits.

This is wired as an extra filtering pass in the log machinery.  This
currently only reduces code duplication, but should allow for other
simplifications and options to be used.

Finally, we hook a diff printer into the output chain.  Ideally we
would wire directly into the diff logic, to optionally use features
like word diff.  However, that will require some major reworking of
the diff chain, so we completely replace the output with our own diff
for now.

As this was a GSoC project, and has quite some history by now, many
people have helped.  In no particular order, thanks go to

  Jakub Narebski <jnareb@gmail.com>
  Jens Lehmann <Jens.Lehmann@web.de>
  Jonathan Nieder <jrnieder@gmail.com>
  Junio C Hamano <gitster@pobox.com>
  Ramsay Jones <ramsay@ramsay1.demon.co.uk>
  Will Palmer <wmpalmer@gmail.com>

Apologies to everyone I forgot.

Signed-off-by: Bo Yang <struggleyb.nku@gmail.com>
Signed-off-by: Thomas Rast <trast@student.ethz.ch>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-03-28 10:29:22 -07:00
Bo Yang 25ed3412f8 Refactor parse_loc
We want to use the same style of -L n,m argument for 'git log -L' as
for git-blame.  Refactor the argument parsing of the range arguments
from builtin/blame.c to the (new) file that will hold the 'git log -L'
logic.

To accommodate different data structures in blame and log -L, the file
contents are abstracted away; parse_range_arg takes a callback that it
uses to get the contents of a line of the (notional) file.

The new test is for a case that made me pause during debugging: the
'blame -L with invalid end' test was the only one that noticed an
outright failure to parse the end *at all*.  So make a more explicit
test for that.

Signed-off-by: Bo Yang <struggleyb.nku@gmail.com>
Signed-off-by: Thomas Rast <trast@student.ethz.ch>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-03-28 10:28:41 -07:00
Jacob Sarvis 6005dbb9bf log: read gpg settings for signed commit verification
"show --show-signature" and "log --show-signature" do not read the
gpg.program setting from git config, even though, commit signing,
tag signing, and tag verification honor it.

Signed-off-by: Jacob Sarvis <jsarvis@openspan.com>
Signed-off-by: Hans Brigman <hbrigman@openspan.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-03-27 13:57:12 -07:00
Jeff King 0433ad128c clone: run check_everything_connected
When we fetch from a remote, we do a revision walk to make
sure that what we received is connected to our existing
history. We do not do the same check for clone, which should
be able to check that we received an intact history graph.

The upside of this patch is that it will make clone more
resilient against propagating repository corruption. The
downside is that we will now traverse "rev-list --objects
--all" down to the roots, which may take some time (it is
especially noticeable for a "--local --bare" clone).

Note that we need to adjust t5710, which tries to make such
a bogus clone. Rather than checking after the fact that our
clone is bogus, we can simplify it to just make sure "git
clone" reports failure.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-03-27 13:47:18 -07:00
Jeff King 0aac7bb287 clone: die on errors from unpack_trees
When clone is populating the working tree, it ignores the
return status from unpack_trees; this means we may report a
successful clone, even when the checkout fails.

When checkout fails, we may want to leave the $GIT_DIR in
place, as it might be possible to recover the data through
further use of "git checkout" (e.g., if the checkout failed
due to a transient error, disk full, etc). However, we
already die on a number of other checkout-related errors, so
this patch follows that pattern.

In addition to marking a now-passing test, we need to adjust
t5710, which blindly assumed it could make bogus clones of
very deep alternates hierarchies. By using "--bare", we can
avoid it actually touching any objects.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-03-27 13:47:15 -07:00
Junio C Hamano 8617715cc0 Merge branch 'maint'
* maint:
  More fixes for 1.8.2.1
  merge-tree: fix typo in merge-tree.c::unresolved
  git-commit doc: describe use of multiple `-m` options
  git-pull doc: fix grammo ("conflicts" is plural)
2013-03-27 10:58:07 -07:00
Junio C Hamano d011ab4312 Merge branch 'maint-1.8.1' into maint
* maint-1.8.1:
  merge-tree: fix typo in merge-tree.c::unresolved
  git-commit doc: describe use of multiple `-m` options
  git-pull doc: fix grammo ("conflicts" is plural)
2013-03-27 10:51:10 -07:00
John Keeping 187c00c6c5 merge-tree: fix typo in merge-tree.c::unresolved
When calculating whether there is a d/f conflict, the calculation of
whether both sides are directories generates an incorrect references
mask because it does not use the loop index to set the correct bit.
Fix this typo.

Signed-off-by: John Keeping <john@keeping.me.uk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-03-27 10:00:50 -07:00
Nguyễn Thái Ngọc Duy e721c1544f checkout: avoid unnecessary match_pathspec calls
In checkout_paths() we do this

 - for all updated items, call match_pathspec
 - for all items, call match_pathspec (inside unmerge_cache)
 - for all items, call match_pathspec (for showing "path .. is unmerged)
 - for updated items, call match_pathspec and update paths

That's a lot of duplicate match_pathspec(s) and the function is not
exactly cheap to be called so many times, especially on large indexes.
This patch makes it call match_pathspec once per updated index entry,
save the result in ce_flags and reuse the results in the following
loops.

The changes in 0a1283b (checkout $tree $path: do not clobber local
changes in $path not in $tree - 2011-09-30) limit the affected paths
to ones we read from $tree. We do not do anything to other modified
entries in this case, so the "for all items" above could be modified
to "for all updated items". But..

The command's behavior now is modified slightly: unmerged entries that
match $path, but not updated by $tree, are now NOT touched.  Although
this should be considered a bug fix, not a regression. A new test is
added for this change.

And while at there, free ps_matched after use.

The following command is tested on webkit, 215k entries. The pattern
is chosen mainly to make match_pathspec sweat:

git checkout -- "*[a-zA-Z]*[a-zA-Z]*[a-zA-Z]*"

        before      after
real    0m3.493s    0m2.737s
user    0m2.239s    0m1.586s
sys     0m1.252s    0m1.151s

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-03-27 08:53:15 -07:00
Junio C Hamano ece12fd844 Merge branch 'jk/mailsplit-maildir-muttsort' into maint
Sort filenames read from the maildir/ in a way that is more likely
to sort messages in the order the writing MUA meant to, by sorting
numeric segment in numeric order and non-numeric segment in
alphabetical order.

* jk/mailsplit-maildir-muttsort:
  mailsplit: sort maildir filenames more cleverly
2013-03-26 12:44:11 -07:00
Junio C Hamano 307d68e275 Merge branch 'nd/branch-error-cases' into maint
"git branch" had more cases where it did not bother to check
nonsense command line parameters.

* nd/branch-error-cases:
  branch: segfault fixes and validation
2013-03-26 12:43:05 -07:00
Junio C Hamano 6201eb3e65 Merge branch 'ap/maint-update-index-h-is-for-help' into maint
"git update-index -h" did not do the usual "-h(elp)" thing.

* ap/maint-update-index-h-is-for-help:
  update-index: allow "-h" to also display options
2013-03-26 12:42:42 -07:00
Junio C Hamano 4bb2121c17 Merge branch 'nd/index-pack-l10n-buf-overflow' into maint
* nd/index-pack-l10n-buf-overflow:
  index-pack: fix buffer overflow caused by translations
2013-03-26 12:40:19 -07:00
Junio C Hamano c17866d7b6 Merge branch 'gp/avoid-explicit-mention-of-dot-git-refs' into maint
* gp/avoid-explicit-mention-of-dot-git-refs:
  Fix ".git/refs" stragglers
2013-03-26 12:40:04 -07:00
Junio C Hamano 1d66383579 Merge branch 'jc/maint-reflog-expire-clean-mark-typofix' into maint
In "git reflog expire", REACHABLE bit was not cleared from the
correct objects.

* jc/maint-reflog-expire-clean-mark-typofix:
  reflog: fix typo in "reflog expire" clean-up codepath
2013-03-26 12:39:51 -07:00
Brad King df45cb3ea3 commit-tree: document -S option consistently
Commit ba3c69a9 (commit: teach --gpg-sign option, 2011-10-05) added the
-S option but documented it in the command usage without indicating that
the value is optional and forgot to mention it in the manpage.  Later
commit 098bbdc3 (Add -S, --gpg-sign option to manpage of "git commit",
2012-10-21) documented the option in the porcelain manpage.

Use wording from the porcelain manpage to document the option in the
plumbing manpage.  Also update the commit-tree usage summary to indicate
that the -S value is optional to be consistent with the manpage and with
the implementation.

Signed-off-by: Brad King <brad.king@kitware.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-03-25 15:01:22 -07:00
Junio C Hamano 870987dec7 Merge branch 'jk/fully-peeled-packed-ref'
Not that we do not actively encourage having annotated tags outside
refs/tags/ hierarchy, but they were not advertised correctly to the
ls-remote and fetch with recent version of Git.

* jk/fully-peeled-packed-ref:
  pack-refs: add fully-peeled trait
  pack-refs: write peeled entry for non-tags
  use parse_object_or_die instead of die("bad object")
  avoid segfaults on parse_object failure
2013-03-25 14:01:07 -07:00
Junio C Hamano 4e38e9b1d0 Merge branch 'jk/fast-export-object-lookup'
* jk/fast-export-object-lookup:
  fast-export: do not load blob objects twice
  fast-export: rename handle_object function
2013-03-25 14:01:05 -07:00
Junio C Hamano 33c1506d62 Merge branch 'ph/tag-force-no-warn-on-creation'
"git tag -f <tag>" always said "Updated tag '<tag>'" even when
creating a new tag (i.e. not overwriting nor updating).

* ph/tag-force-no-warn-on-creation:
  tag: --force does not have to warn when creating tags
2013-03-25 14:00:58 -07:00
Junio C Hamano 55f6fbef3d Merge branch 'jc/push-follow-tag'
The new "--follow-tags" option tells "git push" to push relevant
annotated tags when pushing branches out.

* jc/push-follow-tag:
  push: --follow-tags
  commit.c: use clear_commit_marks_many() in in_merge_bases_many()
  commit.c: add in_merge_bases_many()
  commit.c: add clear_commit_marks_many()
2013-03-25 14:00:41 -07:00
Junio C Hamano 212ca64fb4 Merge branch 'jc/maint-reflog-expire-clean-mark-typofix'
In "git reflog expire", REACHABLE bit was not cleared from the
correct objects.

* jc/maint-reflog-expire-clean-mark-typofix:
  reflog: fix typo in "reflog expire" clean-up codepath
2013-03-25 14:00:39 -07:00
Junio C Hamano 4744b33705 Merge branch 'jc/describe'
The "--match=<pattern>" option of "git describe", when used with
"--all" to allow refs that are not annotated tags to be used as a
base of description, did not restrict the output from the command
to those that match the given pattern.

We may want to have a looser matching that does not restrict to tags,
but that can be done as a follow-up topic; this step is purely a bugfix.

* jc/describe:
  describe: --match=<pattern> must limit the refs even when used with --all
2013-03-25 14:00:24 -07:00
Nguyễn Thái Ngọc Duy 6deab24d88 status, branch: fix the misleading "bisecting" message
The current message is "bisecting %s" (or "bisecting branch %s").
"%s" is the current branch when we started bisecting. Clarify that to
avoid confusion with good and bad refs passed to "bisect" command.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-03-23 22:29:15 -07:00
Junio C Hamano 250b3c6c99 apply --whitespace=fix: avoid running over the postimage buffer
Originally update-pre-post-images could assume that any whitespace
fixing will make the result only shorter by unexpanding runs of
leading SPs into HTs and removing trailing whitespaces at the end of
lines.  Updating the post-image we read from the patch to match the
actual result can be performed in-place under this assumption.
These days, however, we have tab-in-indent (aka Python) rule whose
result can be longer than the original, and we do need to allocate
a larger buffer than the input and replace the result.

Fortunately the support for lengthening rewrite was already added
when we began supporting "match while ignoring whitespace
differences" mode in 86c91f9179 (git apply: option to ignore
whitespace differences, 2009-08-04).  We only need to correctly
count the number of bytes necessary to hold the updated result and
tell the function to allocate a new buffer.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-03-22 11:16:01 -07:00
Junio C Hamano 328455fc58 Merge branch 'maint'
* maint:
  diff.c: diff.renamelimit => diff.renameLimit in message
  wt-status: fix possible use of uninitialized variable
  fast-import: clarify "inline" logic in file_change_m
  run-command: always set failed_errno in start_command
  transport: drop "int cmp = cmp" hack
  drop some obsolete "x = x" compiler warning hacks
  fast-import: use pointer-to-pointer to keep list tail
2013-03-21 14:06:55 -07:00
Jeff King cbfd5e1cbb drop some obsolete "x = x" compiler warning hacks
In cases where the setting and access of a variable are
protected by the same conditional flag, older versions of
gcc would generate a "might be used unitialized" warning. We
silence the warning by initializing the variable to itself,
a hack that gcc recognizes.

Modern versions of gcc are smart enough to get this right,
going back to at least version 4.3.5. gcc 4.1 does get it
wrong in both cases, but is sufficiently old that we
probably don't need to care about it anymore.

Signed-off-by: Jeff King <peff@peff.net>
Reviewed-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-03-21 14:06:38 -07:00
Junio C Hamano 8115c9386c Merge branch 'jk/mailsplit-maildir-muttsort'
Sort filenames read from the maildir/ in a way that is more likely
to sort messages in the order the writing MUA meant to, by sorting
numeric segment in numeric order and non-numeric segment in
alphabetical order.

* jk/mailsplit-maildir-muttsort:
  mailsplit: sort maildir filenames more cleverly
2013-03-21 14:03:08 -07:00
Junio C Hamano 0f6875dbe2 Merge branch 'mg/gpg-interface-using-status'
Call "gpg" using the right API when validating the signature on
tags.

* mg/gpg-interface-using-status:
  pretty: make %GK output the signing key for signed commits
  pretty: parse the gpg status lines rather than the output
  gpg_interface: allow to request status return
  log-tree: rely upon the check in the gpg_interface
  gpg-interface: check good signature in a reliable way
2013-03-21 14:02:55 -07:00
Junio C Hamano 42e129f47a Merge branch 'nd/branch-error-cases'
"git branch" had more cases where it did not bother to check
nonsense command line parameters.

* nd/branch-error-cases:
  branch: segfault fixes and validation
2013-03-21 14:02:51 -07:00
Junio C Hamano 6d7e0c522e Merge branch 'ap/maint-update-index-h-is-for-help'
"git update-index -h" did not do the usual "-h(elp)" thing.

* ap/maint-update-index-h-is-for-help:
  update-index: allow "-h" to also display options
2013-03-21 14:02:48 -07:00
Junio C Hamano 54797b98b8 Merge branch 'bc/commit-complete-lines-given-via-m-option'
'git commit -m "$str"' when $str was already terminated with a LF
now avoids adding an extra LF to the message.

* bc/commit-complete-lines-given-via-m-option:
  Documentation/git-commit.txt: rework the --cleanup section
  git-commit: only append a newline to -m mesg if necessary
  t7502: demonstrate breakage with a commit message with trailing newlines
  t/t7502: compare entire commit message with what was expected
2013-03-21 14:02:37 -07:00
Junio C Hamano f5715de54a Merge branch 'nd/count-garbage'
"git count-objects -v" did not count leftover temporary packfiles
and other kinds of garbage.

* nd/count-garbage:
  count-objects: report how much disk space taken by garbage files
  count-objects: report garbage files in pack directory too
  sha1_file: reorder code in prepare_packed_git_one()
  git-count-objects.txt: describe each line in -v output
2013-03-21 14:02:34 -07:00
Junio C Hamano e4e1c54990 Merge branch 'jc/fetch-raw-sha1'
Allows requests to fetch objects at any tip of refs (including
hidden ones).  It seems that there may be use cases even outside
Gerrit (e.g. $gmane/215701).

* jc/fetch-raw-sha1:
  fetch: fetch objects by their exact SHA-1 object names
  upload-pack: optionally allow fetching from the tips of hidden refs
  fetch: use struct ref to represent refs to be fetched
  parse_fetch_refspec(): clarify the codeflow a bit
2013-03-21 14:02:27 -07:00
Junio C Hamano 09386fff33 Merge branch 'nd/index-pack-l10n-buf-overflow'
* nd/index-pack-l10n-buf-overflow:
  index-pack: fix buffer overflow caused by translations
2013-03-21 14:02:16 -07:00
Jeff King 57165db003 index-pack: always zero-initialize object_entry list
Commit 38a4556 (index-pack: start learning to emulate
"verify-pack -v", 2011-06-03) added a "delta_depth" counter
to each "struct object_entry". Initially, all object entries
have their depth set to 0; in resolve_delta, we then set the
depth of each delta to "base + 1". Base entries never have
their depth touched, and remain at 0.

To ensure that all depths start at 0, that commit changed
calls to xmalloc the object_entry list into calls to
xcalloc.  However, it forgot that we grow the list with
xrealloc later. These extra entries are used when we add an
object from elsewhere to complete a thin pack. If we add a
non-delta object, its depth value will just be uninitialized
heap data.

This patch fixes it by zero-initializing entries we add to
the objects list via the xrealloc.

Signed-off-by: Jeff King <peff@peff.net>
Acked-by: Thomas Rast <trast@student.ethz.ch>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-03-20 12:53:26 -07:00
Jonathan Nieder e24afab091 add: make pathless 'add [-u|-A]' warning a file-global function
Currently warn_pathless_add() is only called directly by cmd_add(),
but that is about to change.  Move its definition higher in the file
and pass the "--update" or "--all" option name used in its message
through globals instead of function arguments to make it easier to
call without passing values that will not change through the call
chain.

Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-03-20 07:41:42 -07:00
Junio C Hamano 9adf272a38 Merge branch 'gp/avoid-explicit-mention-of-dot-git-refs'
* gp/avoid-explicit-mention-of-dot-git-refs:
  Fix ".git/refs" stragglers
2013-03-19 12:16:22 -07:00
Junio C Hamano 2d1495fe44 merge: a random object may not necssarily be a commit
The user could have said "git merge $(git rev-parse v1.0.0)"; we
shouldn't mark it as "Merge commit '15999998fb...'" as the merge
name, even though such an invocation might be crazy.

We could even read the "tag " header from the tag object and replace
the object name the user gave us, but let's not lose the information
by doing so, at least not yet.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-03-19 10:59:07 -07:00
Thomas Rast 8f82aad4e7 index-pack: guard nr_resolved_deltas reads by lock
The threaded parts of index-pack increment the number of resolved
deltas in nr_resolved_deltas guarded by counter_mutex.  However, the
per-thread outer loop accessed nr_resolved_deltas without any locks.

This is not wrong as such, since it doesn't matter all that much
whether we get an outdated value.  However, unless someone proves that
this one lock makes all the performance difference, it would be much
cleaner to guard _all_ accesses to the variable with the lock.

The only such use is display_progress() in the threaded section (all
others are in the conclude_pack() callchain outside the threaded
part).  To make it obvious that it cannot deadlock, move it out of
work_mutex.

Signed-off-by: Thomas Rast <trast@student.ethz.ch>
Reviewed-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-03-19 08:40:47 -07:00
Nguyễn Thái Ngọc Duy 3aba2fddcb index-pack: protect deepest_delta in multithread code
deepest_delta is a global variable but is updated without protection
in resolve_delta(), a multithreaded function. Add a new mutex for it,
but only protect and update when it's actually used (i.e. show_stat is
non-zero).

Another variable that will not be updated is delta_depth in "struct
object_entry" as it's only useful when show_stat is 1. Putting it in
"if (show_stat)" makes it clearer.

The local variable "stat" is renamed to "show_stat" after moving to
global scope because the name "stat" conflicts with stat(2) syscall.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Reviewed-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-03-19 08:40:19 -07:00
Jeff King 30b939c33a fast-export: do not load blob objects twice
When fast-export wants to export a blob object, it first
calls parse_object to get a "struct object" and check
whether we have already shown the object.  If we haven't
shown it, we then use read_sha1_file to pull it from disk
and write it out.

That means we load each blob from disk twice: once for
parse_object to find its type and check its sha1, and a
second time when we actually output it. We can drop this to
a single load by using lookup_object to check the SHOWN
flag, and then checking the signature on and outputting a
single buffer.

This provides modest speedups on git.git (best-of-five, "git
fast-export HEAD >/dev/null"):

  [before]                [after]
  real    0m14.347s       real    0m13.780s
  user    0m14.084s       user    0m13.620s
  sys     0m0.208s        sys     0m0.100s

and somewhat more on more blob-heavy repos (this is a
repository full of media files):

  [before]                [after]
  real    0m52.236s       real    0m44.451s
  user    0m50.568s       user    0m43.000s
  sys     0m1.536s        sys     0m1.284s

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-03-17 15:28:15 -07:00
Jeff King f9b54e2630 fast-export: rename handle_object function
The handle_object function is rather vaguely named; it only
operates on blobs, and its purpose is to export the blob to
the output stream. Let's call it "export_blob" to make it
more clear what it does.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-03-17 15:28:10 -07:00
Jeff King f7892d1817 use parse_object_or_die instead of die("bad object")
Some call-sites do:

  o = parse_object(sha1);
  if (!o)
	  die("bad object %s", some_name);

We can now handle that as a one-liner, and get more
consistent output.

In the third case of this patch, it looks like we are losing
information, as the existing message also outputs the sha1
hex; however, parse_object will already have written a more
specific complaint about the sha1, so there is no point in
repeating it here.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-03-17 12:52:14 -07:00
Nguyễn Thái Ngọc Duy c8183cd285 branch: show more information when HEAD is detached
This prints more helpful info when HEAD is detached: is it detached
because of bisect or rebase? What is the original branch name in those
cases? Is it detached because the user checks out a remote ref or a
tag (and which one)?

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-03-16 22:11:02 -07:00
Nguyễn Thái Ngọc Duy 5c3459fc61 index-pack: fix buffer overflow caused by translations
The translation of "completed with %d local objects" is put in a
48-byte buffer, which may be enough for English but not true for any
translations. Convert it to use strbuf (i.e. no hard limit on
translation length).

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-03-16 22:08:53 -07:00
Phil Hord 3ae851e6fb tag: --force does not have to warn when creating tags
"git tag --force" mentions what old tag object is being replaced
when it is used to update an existing tag, but it shows the same
message when creating a new one.  Stop doing that, as it does not
add any information.

Add a test for this and also to ensure --force can replace tags at
all.

Signed-off-by: Phil Hord <hordp@cisco.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-03-13 10:35:15 -07:00
Matthieu Moy c6898ebf21 add: update pathless 'add [-u|-A]' warning to reflect change of plan
We originally thought the transition would need a period where "git add
[-u|-A]" without pathspec would be forbidden, but the warning is big
enough to scare people and teach them not to use it (or, if so, to
understand the consequences).

Signed-off-by: Matthieu Moy <Matthieu.Moy@imag.fr>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-03-11 07:57:35 -07:00
Junio C Hamano 45c45e300b git add: start preparing for "git add <pathspec>..." to default to "-A"
When "git add subdir/" is run without "-u" or "-A" option, e.g.

    $ edit subdir/x
    $ create subdir/y
    $ rm subdir/z
    $ git add subdir/

the command does not notice removal of paths (e.g. subdir/z) from
the working tree.  This sometimes confuses new people, as arguably
"git add" is told to record the current state of "subdir/" as a
whole, not the current state of the paths that exist in the working
tree that matches that pathspec (the latter by definition excludes
the state of "subdir/z" because it does not exist in the working
tree).

Plan to eventually make "git add" pretend as if "-A" is given when
there is a pathspec on the command line.  When resolving a conflict
to remove a path, the current code tells you to "git rm $path", but
with such a change, you will be able to say "git add $path" (of
course you can do "git add -A $path" today).  That means that we can
simplify the advice messages given by "git status".  That all will
be in Git 2.0 or later, if we are going to do so.

For that transition to work, people need to learn either to say "git
add --no-all subdir/" when they want to ignore the removed paths
like "subdir/z", or to say "git add -A subdir/" when they want to
take the state of the directory as a whole.

"git add" without any argument will continue to be a no-op.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-03-08 23:26:56 -08:00
Junio C Hamano 300c0a2209 builtin/add.c: simplify boolean variables
Do not to explicitly initialize static variables to 0 and instead
let BSS take care of it.  Also use OPT_BOOL() to let the command
line arguments set these variables to 0 or 1, instead of the
deprecated OPT_BOOLEAN() aka OPT_COUNTUP().

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-03-08 22:21:13 -08:00
Junio C Hamano c2aba155da push: --follow-tags
The new option "--follow-tags" tells "git push" to push annotated
tags that are missing from the other side and that can be reached by
the history that is otherwise pushed out.

For example, if you are using the "simple", "current", or "upstream"
push, you would ordinarily push the history leading to the commit at
your current HEAD and nothing else.  With this option, you would
also push all annotated tags that can be reached from that commit to
the other side.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-03-05 13:39:46 -08:00
Junio C Hamano e8e92e05ab reflog: fix typo in "reflog expire" clean-up codepath
In "reflog expire" we were not clearing the REACHABLE bit from
objects reachable from the tip of refs we marked earlier.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-03-05 12:49:59 -08:00
Jeff King 18505c3423 mailsplit: sort maildir filenames more cleverly
A maildir does not technically record the order in which
items were placed into it. That means that when applying a
patch series from a maildir, we may get the patches in the
wrong order. We try to work around this by sorting the
filenames. Unfortunately, this may or may not work depending
on the naming scheme used by the writer of the maildir.

For instance, mutt will write:

  ${epoch_seconds}.${pid}_${seq}.${host}

where we have:

  - epoch_seconds: timestamp at which entry was written
  - pid: PID of writing process
  - seq: a sequence number to ensure uniqueness of filenames
  - host: hostname

None of the numbers are zero-padded. Therefore, when we sort
the names as byte strings, entries that cross a digit
boundary (e.g., 10) will sort out of order.  In the case of
timestamps, it almost never matters (because we do not cross
a digit boundary in the epoch time very often these days).
But for the sequence number, a 10-patch series would be
ordered as 1, 10, 2, 3, etc.

To fix this, we can use a custom sort comparison function
which traverses each string, comparing chunks of digits
numerically, and otherwise doing a byte-for-byte comparison.
That would sort:

  123.456_1.bar
  123.456_2.bar
  ...
  123.456_10.bar

according to the sequence number. Since maildir does not
define a filename format, this is really just a heuristic.
But it happens to work for mutt, and there is a reasonable
chance that it will work for other writers, too (at least as
well as a straight sort).

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-03-02 22:52:44 -08:00
Junio C Hamano 46e1d6eb4d describe: --match=<pattern> must limit the refs even when used with --all
The logic to limit the refs used for describing with a matching pattern
with --match=<pattern> parameter was implemented incorrectly when --all
is in effect.  It just demoted a ref that did not match the pattern to
lower priority---if there aren't other refs with higher priority
that describe the given commit, such an unmatching ref was still used.

When --match is used, reject refs that do not match the given
criteria, so that with or without --all, the output will only use
refs that match the pattern.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-02-28 13:53:00 -08:00
Junio C Hamano ef94636a4d Merge branch 'as/check-ignore'
"git check-ignore ." segfaulted, as a function it calls deep in its
callchain took a string in the <ptr, length> form but did not stop
when given an empty string.

* as/check-ignore:
  name-hash: allow hashing an empty string
  t0008: document test_expect_success_multi
2013-02-25 08:27:09 -08:00
Junio C Hamano 66d12f97d0 Merge branch 'jk/apply-similaritly-parsing' into maint
* jk/apply-similaritly-parsing:
  builtin/apply: tighten (dis)similarity index parsing
2013-02-25 08:03:44 -08:00
Junio C Hamano c0e96dd2ca Merge branch 'zk/clean-report-failure' into maint
* zk/clean-report-failure:
  git-clean: Display more accurate delete messages
2013-02-25 08:03:32 -08:00
Junio C Hamano 0e0c3f25d0 Merge branch 'nd/clone-no-separate-git-dir-with-bare' into maint
* nd/clone-no-separate-git-dir-with-bare:
  clone: forbid --bare --separate-git-dir <dir>
2013-02-25 08:03:27 -08:00
Greg Price 48dfe969fc Fix ".git/refs" stragglers
A couple of references still survive to .git/refs as a tree
of all refs.  Fix one in docs, one in a -h message, one in
a -h message quoted in docs.

Signed-off-by: Greg Price <price@mit.edu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-02-24 22:23:32 -08:00
Jeff King 85edf4f58b teach get_remote_heads to read from a memory buffer
Now that we can read packet data from memory as easily as a
descriptor, get_remote_heads can take either one as a
source. This will allow further refactoring in remote-curl.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-02-24 00:17:38 -08:00
Antoine Pelisse b04d930bbc update-index: allow "-h" to also display options
Even though "git update-index" was updated to use parse-options
infrastracture some time ago to make it possible to show list of
options with usage_with_options(), "git update-index -h" only shows
the usage.  Detect this case and call usage_with_options() to show
the list of options as well.

Signed-off-by: Antoine Pelisse <apelisse@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-02-23 23:49:33 -08:00
Nguyễn Thái Ngọc Duy 8efb8899cf branch: segfault fixes and validation
branch_get() can return NULL (so far on detached HEAD only) but some
code paths in builtin/branch.c cannot deal with that and cause
segfaults.

While at there, make sure to bail out when the user gives 2 or more
branches with --set-upstream-to or --unset-upstream, where only the
first branch is processed and the rest silently dropped.

Reported-by: Per Cederqvist <cederp@opera.com>
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-02-23 11:53:21 -08:00
Jeff King 74543a0423 pkt-line: provide a LARGE_PACKET_MAX static buffer
Most of the callers of packet_read_line just read into a
static 1000-byte buffer (callers which handle arbitrary
binary data already use LARGE_PACKET_MAX). This works fine
in practice, because:

  1. The only variable-sized data in these lines is a ref
     name, and refs tend to be a lot shorter than 1000
     characters.

  2. When sending ref lines, git-core always limits itself
     to 1000 byte packets.

However, the only limit given in the protocol specification
in Documentation/technical/protocol-common.txt is
LARGE_PACKET_MAX; the 1000 byte limit is mentioned only in
pack-protocol.txt, and then only describing what we write,
not as a specific limit for readers.

This patch lets us bump the 1000-byte limit to
LARGE_PACKET_MAX. Even though git-core will never write a
packet where this makes a difference, there are two good
reasons to do this:

  1. Other git implementations may have followed
     protocol-common.txt and used a larger maximum size. We
     don't bump into it in practice because it would involve
     very long ref names.

  2. We may want to increase the 1000-byte limit one day.
     Since packets are transferred before any capabilities,
     it's difficult to do this in a backwards-compatible
     way. But if we bump the size of buffer the readers can
     handle, eventually older versions of git will be
     obsolete enough that we can justify bumping the
     writers, as well. We don't have plans to do this
     anytime soon, but there is no reason not to start the
     clock ticking now.

Just bumping all of the reading bufs to LARGE_PACKET_MAX
would waste memory. Instead, since most readers just read
into a temporary buffer anyway, let's provide a single
static buffer that all callers can use. We can further wrap
this detail away by having the packet_read_line wrapper just
use the buffer transparently and return a pointer to the
static storage.  That covers most of the cases, and the
remaining ones already read into their own LARGE_PACKET_MAX
buffers.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-02-20 13:42:22 -08:00
Jeff King 819b929d33 pkt-line: teach packet_read_line to chomp newlines
The packets sent during ref negotiation are all terminated
by newline; even though the code to chomp these newlines is
short, we end up doing it in a lot of places.

This patch teaches packet_read_line to auto-chomp the
trailing newline; this lets us get rid of a lot of inline
chomping code.

As a result, some call-sites which are not reading
line-oriented data (e.g., when reading chunks of packfiles
alongside sideband) transition away from packet_read_line to
the generic packet_read interface. This patch converts all
of the existing callsites.

Since the function signature of packet_read_line does not
change (but its behavior does), there is a possibility of
new callsites being introduced in later commits, silently
introducing an incompatibility.  However, since a later
patch in this series will change the signature, such a
commit would have to be merged directly into this commit,
not to the tip of the series; we can therefore ignore the
issue.

This is an internal cleanup and should produce no change of
behavior in the normal case. However, there is one corner
case to note. Callers of packet_read_line have never been
able to tell the difference between a flush packet ("0000")
and an empty packet ("0004"), as both cause packet_read_line
to return a length of 0. Readers treat them identically,
even though Documentation/technical/protocol-common.txt says
we must not; it also says that implementations should not
send an empty pkt-line.

By stripping out the newline before the result gets to the
caller, we will now treat the newline-only packet ("0005\n")
the same as an empty packet, which in turn gets treated like
a flush packet. In practice this doesn't matter, as neither
empty nor newline-only packets are part of git's protocols
(at least not for the line-oriented bits, and readers who
are not expecting line-oriented packets will be calling
packet_read directly, anyway). But even if we do decide to
care about the distinction later, it is orthogonal to this
patch.  The right place to tighten would be to stop treating
empty packets as flush packets, and this change does not
make doing so any harder.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-02-20 13:42:21 -08:00
Jeff King cdf4fb8e33 pkt-line: drop safe_write function
This is just write_or_die by another name. The one
distinction is that write_or_die will treat EPIPE specially
by suppressing error messages. That's fine, as we die by
SIGPIPE anyway (and in the off chance that it is disabled,
write_or_die will simulate it).

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-02-20 13:42:21 -08:00
Jeff King 090fd4fe24 upload-archive: use argv_array to store client arguments
The current parsing scheme for upload-archive is to pack
arguments into a fixed-size buffer, separated by NULs, and
put a pointer to each argument in the buffer into a
fixed-size argv array.

This works fine, and the limits are high enough that nobody
reasonable is going to hit them, but it makes the code hard
to follow.  Instead, let's just stuff the arguments into an
argv_array, which is much simpler. That lifts the "all
arguments must fit inside 4K together" limit.

We could also trivially lift the MAX_ARGS limitation (in
fact, we have to keep extra code to enforce it). But that
would mean a client could force us to allocate an arbitrary
amount of memory simply by sending us "argument" lines. By
limiting the MAX_ARGS, we limit an attacker to about 4
megabytes (64 times a maximum 64K packet buffer). That may
sound like a lot compared to the 4K limit, but it's not a
big deal compared to what git-archive will actually allocate
while working (e.g., to load blobs into memory). The
important thing is that it is bounded.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-02-20 13:42:21 -08:00
Jeff King 6379dd0522 upload-archive: do not copy repo name
According to the comment, enter_repo will modify its input.
However, this has not been the case since 1c64b48
(enter_repo: do not modify input, 2011-10-04). Drop the
now-useless copy.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-02-20 13:42:21 -08:00
Junio C Hamano c19387e799 name-hash: allow hashing an empty string
Usually we do not pass an empty string to the function hash_name()
because we almost always ask for hash values for a path that is a
candidate to be added to the index. However, check-ignore (and most
likely check-attr, but I didn't check) apparently has a callchain
to ask the hash value for an empty path when it was given a "." from
the top-level directory to ask "Is the path . excluded by default?"

Make sure that hash_name() does not overrun the end of the given
pathname even when it is empty.

Remove a sweep-the-issue-under-the-rug conditional in check-ignore
that avoided to pass an empty string to the callchain while at it.
It is a valid question to ask for check-ignore if the top-level is
set to be ignored by default, even though the answer is most likely
no, if only because there is currently no way to specify such an
entry in the .gitignore file. But it is an unusual thing to ask and
it is not worth optimizing for it by special casing at the top level
of the call chain.

Signed-off-by: Adam Spiers <git@adamspiers.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-02-19 14:00:12 -08:00
Brandon Casey a24a41ea9a git-commit: only append a newline to -m mesg if necessary
Currently, git will append two newlines to every message supplied via
the -m switch.  The purpose of this is to allow -m to be supplied
multiple times and have each supplied string become a paragraph in the
resulting commit message.

Normally, this does not cause a problem since any trailing newlines will
be removed by the cleanup operation.  If cleanup=verbatim for example,
then the trailing newlines will not be removed and will survive into the
resulting commit message.

Instead, let's ensure that the string supplied to -m is newline terminated,
but only append a second newline when appending additional messages.

Fixes the test in t7502.

Signed-off-by: Brandon Casey <drafnel@gmail.com>
Reviewed-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-02-19 09:30:50 -08:00
Junio C Hamano ce735bf7fd Merge branch 'jc/hidden-refs'
Allow the server side to redact the refs/ namespace it shows to the
client.

Will merge to 'master'.

* jc/hidden-refs:
  upload/receive-pack: allow hiding ref hierarchies
  upload-pack: simplify request validation
  upload-pack: share more code
2013-02-17 15:25:57 -08:00
Nguyễn Thái Ngọc Duy 1a20dd49f8 count-objects: report how much disk space taken by garbage files
Also issue warnings on loose garbages instead of errors as a result of
using report_garbage() function in count_objects()

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-02-15 09:02:34 -08:00
Nguyễn Thái Ngọc Duy 543c5caa6c count-objects: report garbage files in pack directory too
prepare_packed_git_one() is modified to allow count-objects to hook a
report function to so we don't need to duplicate the pack searching
logic in count-objects.c. When report_pack_garbage is NULL, the
overhead is insignificant.

The garbage is reported with warning() instead of error() in packed
garbage case because it's not an error to have garbage. Loose garbage
is still reported as errors and will be converted to warnings later.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-02-15 08:13:13 -08:00
Junio C Hamano d3354cde33 Merge branch 'jc/extended-fake-ancestor-for-gitlink'
Instead of requiring the full 40-hex object names on the index
line, we can read submodule commit object names from the textual
diff when synthesizing a fake ancestore tree for "git am -3".

* jc/extended-fake-ancestor-for-gitlink:
  apply: verify submodule commit object name better
2013-02-14 10:28:48 -08:00
Michael J Gruber 9cc4ac8ff1 gpg_interface: allow to request status return
Currently, verify_signed_buffer() returns the user facing output only.

Allow callers to request the status output also.

Signed-off-by: Michael J Gruber <git@drmicha.warpmail.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-02-14 09:30:04 -08:00
Junio C Hamano 5bf72ed2e7 Merge branch 'maint'
* maint:
  Replace filepattern with pathspec for consistency
2013-02-12 12:23:12 -08:00
Nguyễn Thái Ngọc Duy 5289c56a72 format-patch: update append_signoff prototype
This is a preparation step for merging with append_signoff from
sequencer.c

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Brandon Casey <bcasey@nvidia.com>
Reviewed-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-02-12 11:29:56 -08:00
Brandon Casey bab4d1097c sequencer.c: teach append_signoff how to detect duplicate s-o-b
Teach append_signoff how to detect a duplicate s-o-b in the commit footer.
This is in preparation to unify the append_signoff implementations in
log-tree.c and sequencer.c.

Fixes test in t3511.

Signed-off-by: Brandon Casey <bcasey@nvidia.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-02-12 11:17:10 -08:00
Matthieu Moy d32805dce7 Replace filepattern with pathspec for consistency
pathspec is the most widely used term, and is the one defined in
gitglossary.txt. <filepattern> was used only in the synopsys for git-add
and git-commit, and in git-add.txt. Get rid of it.

This patch is obtained with by running:

  perl -pi -e 's/filepattern/pathspec/' `git grep -l filepattern`

Signed-off-by: Matthieu Moy <Matthieu.Moy@imag.fr>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-02-12 10:05:38 -08:00
Junio C Hamano ecf6778e8e Merge branch 'jk/apply-similaritly-parsing'
Make sure the similarity value shown in the "apply --summary"
output is sensible, even when the input had a bogus value.

* jk/apply-similaritly-parsing:
  builtin/apply: tighten (dis)similarity index parsing
2013-02-08 15:29:02 -08:00
Junio C Hamano 427c6d0caf Merge branch 'jc/fake-ancestor-with-non-blobs' into maint
Rebasing the history of superproject with change in the submodule
has been broken since v1.7.12.

* jc/fake-ancestor-with-non-blobs:
  apply: diagnose incomplete submodule object name better
  apply: simplify build_fake_ancestor()
  git-am: record full index line in the patch used while rebasing
2013-02-07 15:14:22 -08:00
Junio C Hamano f507784d2c Merge branch 'nd/branch-error-cases'
Fix various error messages and conditions in "git branch", e.g. we
advertised "branch -d/-D" to remove one or more branches but actually
implemented removal of zero or more branches---request to remove no
branches was not rejected.

* nd/branch-error-cases:
  branch: let branch filters imply --list
  docs: clarify git-branch --list behavior
  branch: mark more strings for translation
  branch: give a more helpful message on redundant arguments
  branch: reject -D/-d without branch name
2013-02-07 14:41:38 -08:00
Junio C Hamano f2db854d24 fetch: use struct ref to represent refs to be fetched
Even though "git fetch" has full infrastructure to parse refspecs to
be fetched and match them against the list of refs to come up with
the final list of refs to be fetched, the list of refs that are
requested to be fetched were internally converted to a plain list of
strings at the transport layer and then passed to the underlying
fetch-pack driver.

Stop this conversion and instead pass around an array of refs.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-02-07 13:53:59 -08:00
Junio C Hamano daebaa7813 upload/receive-pack: allow hiding ref hierarchies
A repository may have refs that are only used for its internal
bookkeeping purposes that should not be exposed to the others that
come over the network.

Teach upload-pack to omit some refs from its initial advertisement
by paying attention to the uploadpack.hiderefs multi-valued
configuration variable.  Do the same to receive-pack via the
receive.hiderefs variable.  As a convenient short-hand, allow using
transfer.hiderefs to set the value to both of these variables.

Any ref that is under the hierarchies listed on the value of these
variable is excluded from responses to requests made by "ls-remote",
"fetch", etc. (for upload-pack) and "push" (for receive-pack).

Because these hidden refs do not count as OUR_REF, an attempt to
fetch objects at the tip of them will be rejected, and because these
refs do not get advertised, "git push :" will not see local branches
that have the same name as them as "matching" ones to be sent.

An attempt to update/delete these hidden refs with an explicit
refspec, e.g. "git push origin :refs/hidden/22", is rejected.  This
is not a new restriction.  To the pusher, it would appear that there
is no such ref, so its push request will conclude with "Now that I
sent you all the data, it is time for you to update the refs.  I saw
that the ref did not exist when I started pushing, and I want the
result to point at this commit".  The receiving end will apply the
compare-and-swap rule to this request and rejects the push with
"Well, your update request conflicts with somebody else; I see there
is such a ref.", which is the right thing to do. Otherwise a push to
a hidden ref will always be "the last one wins", which is not a good
default.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-02-07 13:48:47 -08:00
Junio C Hamano 6d81ce0543 Merge branch 'jc/fake-ancestor-with-non-blobs'
Rebasing the history of superproject with change in the submodule
was broken since v1.7.12.

* jc/fake-ancestor-with-non-blobs:
  apply: diagnose incomplete submodule object name better
  apply: simplify build_fake_ancestor()
  git-am: record full index line in the patch used while rebasing
2013-02-05 16:13:12 -08:00
Junio C Hamano 5e026920a9 apply: verify submodule commit object name better
A textual patch also records the submodule commit object name in
full.  Make the parsing more robust by reading from there and
verifying the (possibly abbreviated) name on the index line matches.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-02-05 11:20:09 -08:00
Junio C Hamano 63cdcfa40f pack-objects: shrink struct object_entry
Turn some boolean fields into bitfields and use uint32_t for name
hash.  This shrinks the size of the structure from 128 bytes to 120
bytes.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-02-04 15:23:35 -08:00
Junio C Hamano d5365b4327 Merge branch 'jk/read-commit-buffer-data-after-free'
Clarify the ownership rule for commit->buffer field, which some
callers incorrectly accessed without making sure it is populated.

* jk/read-commit-buffer-data-after-free:
  logmsg_reencode: lazily load missing commit buffers
  logmsg_reencode: never return NULL
  commit: drop useless xstrdup of commit message
2013-02-04 10:25:18 -08:00
Junio C Hamano 27d46a7072 Merge branch 'mm/add-u-A-sans-pathspec'
Forbid "git add -u" and "git add -A" without pathspec run from a
subdirectory, to train people to type "." (or ":/") to make the
choice of default does not matter.

* mm/add-u-A-sans-pathspec:
  add: warn when -u or -A is used without pathspec
2013-02-04 10:25:14 -08:00
Junio C Hamano 370855e967 Merge branch 'jc/push-reject-reasons'
Improve error and advice messages given locally when "git push"
refuses when it cannot compute fast-forwardness by separating these
cases from the normal "not a fast-forward; merge first and push
again" case.

* jc/push-reject-reasons:
  push: finishing touches to explain REJECT_ALREADY_EXISTS better
  push: introduce REJECT_FETCH_FIRST and REJECT_NEEDS_FORCE
  push: further simplify the logic to assign rejection reason
  push: further clean up fields of "struct ref"
2013-02-04 10:25:04 -08:00
Junio C Hamano 099ba556d0 Merge branch 'jk/config-parsing-cleanup'
Configuration parsing for tar.* configuration variables were
broken. Introduce a new config-keyname parser API to make the
callers much less error prone.

* jk/config-parsing-cleanup:
  reflog: use parse_config_key in config callback
  help: use parse_config_key for man config
  submodule: simplify memory handling in config parsing
  submodule: use parse_config_key when parsing config
  userdiff: drop parse_driver function
  convert some config callbacks to parse_config_key
  archive-tar: use parse_config_key when parsing config
  config: add helper function for parsing key names
2013-02-04 10:24:50 -08:00
Junio C Hamano 149a4211a4 Merge branch 'jc/custom-comment-char'
Allow a configuration variable core.commentchar to customize the
character used to comment out the hint lines in the edited text from
the default '#'.

* jc/custom-comment-char:
  Allow custom "comment char"
2013-02-04 10:23:49 -08:00
Junio C Hamano 6cc01490c3 Merge branch 'nd/edit-branch-desc-while-detached' into maint
Attempt to "branch --edit-description" an existing branch, while
being on a detached HEAD, errored out.

* nd/edit-branch-desc-while-detached:
  branch: no detached HEAD check when editing another branch's description
2013-02-04 10:04:44 -08:00
Junio C Hamano ba8748e6d6 Merge branch 'jc/help' into maint
* jc/help:
  help: include <common-cmds.h> only in one file
2013-02-04 10:04:06 -08:00
Junio C Hamano 686b895928 Merge branch 'jc/merge-blobs' into maint
* jc/merge-blobs:
  Makefile: Replace merge-file.h with merge-blobs.h in LIB_H
  merge-tree: fix d/f conflicts
  merge-tree: add comments to clarify what these functions are doing
  merge-tree: lose unused "resolve_directories"
  merge-tree: lose unused "flags" from merge_list
  Which merge_file() function do you mean?
2013-02-04 10:03:41 -08:00
John Keeping afcb6ac83d builtin/apply: tighten (dis)similarity index parsing
This was prompted by an incorrect warning issued by clang [1], and a
suggestion by Linus to restrict the range to check for values greater
than INT_MAX since these will give bogus output after casting to int.

In fact the (dis)similarity index is a percentage, so reject values
greater than 100.

[1] http://article.gmane.org/gmane.comp.version-control.git/213857

Signed-off-by: John Keeping <john@keeping.me.uk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-02-03 13:47:43 -08:00
Junio C Hamano d3c0f7773f Merge branch 'nd/edit-branch-desc-while-detached'
Attempt to "branch --edit-description" an existing branch, while
being on a detached HEAD, errored out.

* nd/edit-branch-desc-while-detached:
  branch: no detached HEAD check when editing another branch's description
2013-02-01 12:40:52 -08:00
Junio C Hamano 4acfff9dda Merge branch 'jk/gc-auto-after-fetch'
Help "fetch only" repositories that do not trigger "gc --auto"
often enough.

* jk/gc-auto-after-fetch:
  fetch-pack: avoid repeatedly re-scanning pack directory
  fetch: run gc --auto after fetching
2013-02-01 12:40:16 -08:00
Junio C Hamano ba96aa67be Merge branch 'jc/no-git-config-in-clone'
We stopped paying attention to $GIT_CONFIG environment that points
at a single configuration file from any command other than "git config"
quite a while ago, but "git clone" internally set, exported, and
then unexported the variable during its operation unnecessarily.

* jc/no-git-config-in-clone:
  clone: do not export and unexport GIT_CONFIG
2013-02-01 12:39:37 -08:00
Junio C Hamano 2532d891a4 Merge branch 'nd/fetch-depth-is-broken'
"git fetch --depth" was broken in at least three ways.  The
resulting history was deeper than specified by one commit, it was
unclear how to wipe the shallowness of the repository with the
command, and documentation was misleading.

* nd/fetch-depth-is-broken:
  fetch: elaborate --depth action
  upload-pack: fix off-by-one depth calculation in shallow clone
  fetch: add --unshallow for turning shallow repo into complete one
2013-02-01 12:39:24 -08:00
Junio C Hamano e28efb1998 apply: diagnose incomplete submodule object name better
"git am -3" uses this function to build a tree that records how the
preimage the patch was created from would have looked like.  An
abbreviated object name on the index line is ordinarily sufficient
for us to figure out the object name the preimage tree would have
contained, but a change to a submodule by definition shows an object
name of a submodule commit which our repository should not have, and
get_sha1_blob() is not an appropriate way to read it (or get_sha1()
for that matter).

Use get_sha1_hex() and complain if we do not find a full object name
there.

We could read from the payload part of the patch to learn the full
object name of the commit, but the primary user "git rebase" has
been fixed to give us a full object name, so this should suffice
for now.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-01-31 20:30:55 -08:00
Junio C Hamano e2afb0be90 apply: simplify build_fake_ancestor()
The local variable sha1_ptr in the build_fake_ancestor() function
used to either point at the null_sha1[] (if the ancestor did not
have the path) or at sha1[] (if we read the object name into the
local array), but 7a98869 (apply: get rid of --index-info in favor
of --build-fake-ancestor, 2007-09-17) made the "missing in the
ancestor" case unnecessary, hence sha1_ptr, when used, always points
at the local array.

Get rid of the unneeded variable, and restructure the if/else
cascade a bit to make it easier to read.  There should be no
behaviour change.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-01-31 20:30:55 -08:00
Jeff King d040350813 branch: let branch filters imply --list
Currently, a branch filter like `--contains`, `--merged`, or
`--no-merged` is ignored when we are not in listing mode.
For example:

  git branch --contains=foo bar

will create the branch "bar" from the current HEAD, ignoring
the `--contains` argument entirely. This is not very
helpful. There are two reasonable behaviors for git here:

  1. Flag an error; the arguments do not make sense.

  2. Implicitly go into `--list` mode

This patch chooses the latter, as it is more convenient, and
there should not be any ambiguity with attempting to create
a branch; using `--contains` and not wanting to list is
nonsensical.

That leaves the case where an explicit modification option
like `-d` is given.  We already catch the case where
`--list` is given alongside `-d` and flag an error. With
this patch, we will also catch the use of `--contains` and
other filter options alongside `-d`.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-01-31 16:37:24 -08:00
Nguyễn Thái Ngọc Duy 045e3884bc branch: mark more strings for translation
Reviewed-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-01-30 09:01:49 -08:00
Junio C Hamano 35484d4acd Merge branch 'nd/edit-branch-desc-while-detached' into HEAD
* nd/edit-branch-desc-while-detached:
  branch: no detached HEAD check when editing another branch's description
2013-01-30 09:01:41 -08:00
Nguyễn Thái Ngọc Duy 43722c4d9e branch: give a more helpful message on redundant arguments
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-01-30 09:00:41 -08:00
Nguyễn Thái Ngọc Duy 640d0401be branch: reject -D/-d without branch name
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-01-30 09:00:41 -08:00
Nguyễn Thái Ngọc Duy 75135b23f6 branch: no detached HEAD check when editing another branch's description
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-01-30 08:59:56 -08:00
Junio C Hamano 7b5196909c Merge branch 'nd/magic-pathspec-from-root'
When giving arguments without "--" disambiguation, object names
that come  earlier on the command line must not be interpretable as
pathspecs and pathspecs that come later on the command line must
not be interpretable as object names.  Tweak the disambiguation
rule so that ":/" (no other string before or after) is always
interpreted as a pathspec, to avoid having to say "git cmd -- :/".

* nd/magic-pathspec-from-root:
  grep: avoid accepting ambiguous revision
  Update :/abc ambiguity check
2013-01-30 08:52:53 -08:00
Junio C Hamano d959a78d98 Merge branch 'jc/help'
A header file that has the definition of a static array was
included in two places, wasting the space.

* jc/help:
  help: include <common-cmds.h> only in one file
2013-01-28 10:59:15 -08:00
Matthieu Moy 0fa2eb530f add: warn when -u or -A is used without pathspec
Most Git commands that can be used with or without pathspec operate
tree-wide by default, the pathspec being used to restrict their
scope.  A few exceptions are: 'git grep', 'git clean', 'git add -u'
and 'git add -A'.  When run in a subdirectory without pathspec, they
operate only on paths in the current directory.

The inconsistency of 'git add -u' and 'git add -A' is particularly
problematic since other 'git add' subcommands (namely 'git add -p'
and 'git add -e') are tree-wide by default.  It also means that "git
add -u && git commit" will record a state that is different from
what is recorded with "git commit -a".

Flipping the default now is unacceptable, so let's start training
users to type 'git add -u|-A :/' or 'git add -u|-A .' explicitly, to
prepare for the next steps:

* forbid 'git add -u|-A' without pathspec (like 'git add' without
  option)

* much later, maybe, re-allow 'git add -u|-A' without pathspec, that
  will add all tracked and modified files, or all files, tree-wide.

A nice side effect of this patch is that it makes the :/ magic
pathspec easier to discover for users.

When the command is called from the root of the tree, there is no
ambiguity and no need to change the behavior, hence no need to warn.

Signed-off-by: Matthieu Moy <Matthieu.Moy@imag.fr>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-01-28 10:31:35 -08:00
Junio C Hamano 012a1bb524 Merge branch 'jk/maint-gc-auto-after-fetch' into jk/gc-auto-after-fetch
* jk/maint-gc-auto-after-fetch:
  fetch-pack: avoid repeatedly re-scanning pack directory
  fetch: run gc --auto after fetching
2013-01-26 19:42:09 -08:00
Jeff King b495697b82 fetch-pack: avoid repeatedly re-scanning pack directory
When we look up a sha1 object for reading via parse_object() =>
read_sha1_file() => read_object() callpath, we first check
packfiles, and then loose objects. If we still haven't found it, we
re-scan the list of packfiles in `objects/pack`. This final step
ensures that we can co-exist with a simultaneous repack process
which creates a new pack and then prunes the old object.

This extra re-scan usually does not have a performance impact for
two reasons:

  1. If an object is missing, then typically the re-scan will find a
     new pack, then no more misses will occur.  Or if it truly is
     missing, then our next step is usually to die().

  2. Re-scanning is cheap enough that we do not even notice.

However, these do not always hold. The assumption in (1) is that the
caller is expecting to find the object. This is usually the case,
but the call to `parse_object` in `everything_local` does not follow
this pattern. It is looking to see whether we have objects that the
remote side is advertising, not something we expect to
have. Therefore if we are fetching from a remote which has many refs
pointing to objects we do not have, we may end up re-scanning the
pack directory many times.

Even with this extra re-scanning, the impact is often not noticeable
due to (2); we just readdir() the packs directory and skip any packs
that are already loaded. However, if there are a large number of
packs, even enumerating the directory can be expensive, especially
if we do it repeatedly.

Having this many packs is a good sign the user should run `git gc`,
but it would still be nice to avoid having to scan the directory at
all.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-01-26 19:37:30 -08:00
Jeff King 131b8fcbfb fetch: run gc --auto after fetching
We generally try to run "gc --auto" after any commands that
might introduce a large number of new objects. An obvious
place to do so is after running "fetch", which may introduce
new loose objects or packs (depending on the size of the
fetch).

While an active developer repository will probably
eventually trigger a "gc --auto" on another action (e.g.,
git-rebase), there are two good reasons why it is nicer to
do it at fetch time:

  1. Read-only repositories which track an upstream (e.g., a
     continuous integration server which fetches and builds,
     but never makes new commits) will accrue loose objects
     and small packs, but never coalesce them into a more
     efficient larger pack.

  2. Fetching is often already perceived to be slow to the
     user, since they have to wait on the network. It's much
     more pleasant to include a potentially slow auto-gc as
     part of the already-long network fetch than in the
     middle of productive work with git-rebase or similar.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-01-26 19:25:38 -08:00
Jeff King be5c9fb904 logmsg_reencode: lazily load missing commit buffers
Usually a commit that makes it to logmsg_reencode will have
been parsed, and the commit->buffer struct member will be
valid. However, some code paths will free commit buffers
after having used them (for example, the log traversal
machinery will do so to keep memory usage down).

Most of the time this is fine; log should only show a commit
once, and then exits. However, there are some code paths
where this does not work. At least two are known:

  1. A commit may be shown as part of a regular ref, and
     then it may be shown again as part of a submodule diff
     (e.g., if a repo contains refs to both the superproject
     and subproject).

  2. A notes-cache commit may be shown during "log --all",
     and then later used to access a textconv cache during a
     diff.

Lazily loading in logmsg_reencode does not necessarily catch
all such cases, but it should catch most of them. Users of
the commit buffer tend to be either parsing for structure
(in which they will call parse_commit, and either we will
already have parsed, or we will load commit->buffer lazily
there), or outputting (either to the user, or fetching a
part of the commit message via format_commit_message). In
the latter case, we should always be using logmsg_reencode
anyway (and typically we do so via the pretty-print
machinery).

If there are any cases that this misses, we can fix them up
to use logmsg_reencode (or handle them on a case-by-case
basis if that is inappropriate).

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-01-26 13:28:22 -08:00
Jeff King dd0d388c44 logmsg_reencode: never return NULL
The logmsg_reencode function will return the reencoded
commit buffer, or NULL if reencoding failed or no reencoding
was necessary. Since every caller then ends up checking for NULL
and just using the commit's original buffer, anyway, we can
be a bit more helpful and just return that buffer when we
would have returned NULL.

Since the resulting string may or may not need to be freed,
we introduce a logmsg_free, which checks whether the buffer
came from the commit object or not (callers either
implemented the same check already, or kept two separate
pointers, one to mark the buffer to be used, and one for the
to-be-freed string).

Pushing this logic into logmsg_* simplifies the callers, and
will let future patches lazily load the commit buffer in a
single place.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-01-26 13:28:21 -08:00
Jeff King 200ebe362c commit: drop useless xstrdup of commit message
When git-commit is asked to reuse a commit message via "-c",
we call read_commit_message, which looks up the commit and
hands back either the re-encoded result, or a copy of the
original. We make a copy in the latter case so that the
ownership semantics of the return value are clear (in either
case, it can be freed).

However, since we return a "const char *", and since the
resulting buffer's lifetime is the same as that of the whole
program, we never bother to free it at all.

Let's just drop the copy. That saves us a copy in the common
case. While it does mean we leak in the re-encode case, it
doesn't matter, since we are relying on program exit to free
the memory anyway.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-01-26 13:28:19 -08:00
Junio C Hamano b4cf8db275 push: finishing touches to explain REJECT_ALREADY_EXISTS better
Now that "already exists" errors are given only when a push tries to
update an existing ref in refs/tags/ hierarchy, we can say "the
tag", instead of "the destination reference", and that is far easier
to understand.

Pointed out by Chris Rorvick.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-01-24 23:28:50 -08:00
Junio C Hamano 75e5c0dc55 push: introduce REJECT_FETCH_FIRST and REJECT_NEEDS_FORCE
When we push to update an existing ref, if:

 * the object at the tip of the remote is not a commit; or
 * the object we are pushing is not a commit,

it won't be correct to suggest to fetch, integrate and push again,
as the old and new objects will not "merge".  We should explain that
the push must be forced when there is a non-committish object is
involved in such a case.

If we do not have the current object at the tip of the remote, we do
not even know that object, when fetched, is something that can be
merged.  In such a case, suggesting to pull first just like
non-fast-forward case may not be technically correct, but in
practice, most such failures are seen when you try to push your work
to a branch without knowing that somebody else already pushed to
update the same branch since you forked, so "pull first" would work
as a suggestion most of the time.  And if the object at the tip is
not a commit, "pull first" will fail, without making any permanent
damage.  As a side effect, it also makes the error message the user
will get during the next "push" attempt easier to understand, now
the user is aware that a non-commit object is involved.

In these cases, the current code already rejects such a push on the
client end, but we used the same error and advice messages as the
ones used when rejecting a non-fast-forward push, i.e. pull from
there and integrate before pushing again.

Introduce new rejection reasons and reword the messages
appropriately.

[jc: with help by Peff on message details]

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-01-24 14:37:23 -08:00
Junio C Hamano bb9a69694f Merge branch 'as/pre-push-hook'
Add an extra hook so that "git push" that is run without making
sure what is being pushed is sane can be checked and rejected (as
opposed to the user deciding not pushing).

* as/pre-push-hook:
  Add sample pre-push hook script
  push: Add support for pre-push hooks
  hooks: Add function to check if a hook exists
2013-01-23 21:19:25 -08:00
Junio C Hamano a39b15b4f6 Merge branch 'as/check-ignore'
Add a new command "git check-ignore" for debugging .gitignore
files.

The variable names may want to get cleaned up but that can be done
in-tree.

* as/check-ignore:
  clean.c, ls-files.c: respect encapsulation of exclude_list_groups
  t0008: avoid brace expansion
  add git-check-ignore sub-command
  setup.c: document get_pathspec()
  add.c: extract new die_if_path_beyond_symlink() for reuse
  add.c: extract check_path_for_gitlink() from treat_gitlinks() for reuse
  pathspec.c: rename newly public functions for clarity
  add.c: move pathspec matchers into new pathspec.c for reuse
  add.c: remove unused argument from validate_pathspec()
  dir.c: improve docs for match_pathspec() and match_pathspec_depth()
  dir.c: provide clear_directory() for reclaiming dir_struct memory
  dir.c: keep track of where patterns came from
  dir.c: use a single struct exclude_list per source of excludes

Conflicts:
	builtin/ls-files.c
	dir.c
2013-01-23 21:19:10 -08:00
Jeff King b3873c336c reflog: use parse_config_key in config callback
This doesn't save any lines, but does keep us from doing
error-prone pointer arithmetic with constants.

Signed-off-by: Jeff King <peff@peff.net>
Reviewed-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-01-23 12:58:33 -08:00
Jeff King 4d5c6cefd5 help: use parse_config_key for man config
The resulting code ends up about the same length, but it is
a little more self-explanatory. It now explicitly documents
and checks the pre-condition that the incoming var starts
with "man.", and drops the magic offset "4".

Signed-off-by: Jeff King <peff@peff.net>
Reviewed-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-01-23 12:58:33 -08:00
Junio C Hamano 772f811398 Merge branch 'mz/reset-misc'
Various 'reset' optimizations and clean-ups, followed by a change
to allow "git reset" to work even on an unborn branch.

* mz/reset-misc:
  reset: update documentation to require only tree-ish with paths
  reset [--mixed]: use diff-based reset whether or not pathspec was given
  reset: allow reset on unborn branch
  reset $sha1 $pathspec: require $sha1 only to be treeish
  reset.c: inline update_index_refresh()
  reset.c: finish entire cmd_reset() whether or not pathspec is given
  reset [--mixed]: only write index file once
  reset.c: move lock, write and commit out of update_index_refresh()
  reset.c: move update_index_refresh() call out of read_from_tree()
  reset.c: replace switch by if-else
  reset: avoid redundant error message
  reset --keep: only write index file once
  reset.c: share call to die_if_unmerged_cache()
  reset.c: extract function for updating {ORIG_,}HEAD
  reset.c: remove unnecessary variable 'i'
  reset.c: extract function for parsing arguments
  reset: don't allow "git reset -- $pathspec" in bare repo
  reset.c: pass pathspec around instead of (prefix, argv) pair
  reset $pathspec: exit with code 0 if successful
  reset $pathspec: no need to discard index
2013-01-22 09:36:41 -08:00
Junio C Hamano aa0ae51048 Merge branch 'zk/clean-report-failure'
"git clean" states what it is going to remove and then goes on to
remove it, but sometimes it only discovers things that cannot be
removed after recursing into a directory, which makes the output
confusing and even wrong.

* zk/clean-report-failure:
  git-clean: Display more accurate delete messages
2013-01-21 20:15:24 -08:00
Junio C Hamano 68434e2879 Merge branch 'nd/clone-no-separate-git-dir-with-bare'
Forbid a useless combination of options to "git clone".

* nd/clone-no-separate-git-dir-with-bare:
  clone: forbid --bare --separate-git-dir <dir>
2013-01-21 20:15:08 -08:00
Nguyễn Thái Ngọc Duy 0b0ecaac2a grep: avoid accepting ambiguous revision
Unlike other commands that take both revs and pathspecs without "--"
disamiguators only when the boundary is clear, "git grep" treated
what can be interpreted as a rev as-is, without making sure that it
could also have meant a pathspec.  E.g.

    $ git grep -e foo master

when 'master' is in the working tree, should have triggered an
ambiguity error, but it didn't, and searched in the tree of the
commit named by 'master'.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-01-21 16:57:38 -08:00
Junio C Hamano 28f04f3463 Merge branch 'rt/commit-cleanup-config'
Add a configuration variable to set default clean-up mode other
than "strip".

* rt/commit-cleanup-config:
  commit: make default of "cleanup" option configurable
2013-01-20 17:07:04 -08:00
Junio C Hamano 577f63e781 Merge branch 'ap/log-mailmap'
Teach commands in the "log" family to optionally pay attention to
the mailmap.

* ap/log-mailmap:
  log --use-mailmap: optimize for cases without --author/--committer search
  log: add log.mailmap configuration option
  log: grep author/committer using mailmap
  test: add test for --use-mailmap option
  log: add --use-mailmap option
  pretty: use mailmap to display username and email
  mailmap: add mailmap structure to rev_info and pp
  mailmap: simplify map_user() interface
  mailmap: remove email copy and length limitation
  Use split_ident_line to parse author and committer
  string-list: allow case-insensitive string list
2013-01-20 17:06:53 -08:00
Junio C Hamano 1542d4cdad help: include <common-cmds.h> only in one file
This header not only declares but also defines the contents of the
array that holds the list of command names and help text.  Do not
include it in multiple places to waste text space.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-01-18 22:35:04 -08:00
Aaron Schrab ec55559f93 push: Add support for pre-push hooks
Add support for a pre-push hook which can be used to determine if the
set of refs to be pushed is suitable for the target repository.  The
hook is run with two arguments specifying the name and location of the
destination repository.

Information about what is to be pushed is provided by sending lines of
the following form to the hook's standard input:

  <local ref> SP <local sha1> SP <remote ref> SP <remote sha1> LF

If the hook exits with a non-zero status, the push will be aborted.

This will allow the script to determine if the push is acceptable based
on the target repository and branch(es), the commits which are to be
pushed, and even the source branches in some cases.

Signed-off-by: Aaron Schrab <aaron@schrab.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-01-18 11:13:22 -08:00
Martin von Zweigbergk bf44142f54 reset: update documentation to require only tree-ish with paths
When resetting with paths, we no longer require a commit argument, but
only a tree-ish. Update the documentation and synopsis accordingly.

Signed-off-by: Martin von Zweigbergk <martinvonz@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-01-16 12:50:23 -08:00
Junio C Hamano eff80a9fd9 Allow custom "comment char"
Some users do want to write a line that begin with a pound sign, #,
in their commit log message.  Many tracking system recognise
a token of #<bugid> form, for example.

The support we offer these use cases is not very friendly to the end
users.  They have a choice between

 - Don't do it.  Avoid such a line by rewrapping or indenting; and

 - Use --cleanup=whitespace but remove all the hint lines we add.

Give them a way to set a custom comment char, e.g.

    $ git -c core.commentchar="%" commit

so that they do not have to do either of the two workarounds.

[jc: although I started the topic, all the tests and documentation
updates, many of the call sites of the new strbuf_add_commented_*()
functions, and the change to git-submodule.sh scripted Porcelain are
from Ralf.]

Signed-off-by: Junio C Hamano <gitster@pobox.com>
Signed-off-by: Ralf Thielow <ralf.thielow@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-01-16 12:48:22 -08:00
Adam Spiers 72aeb18772 clean.c, ls-files.c: respect encapsulation of exclude_list_groups
Consumers of the dir.c traversal API should avoid assuming knowledge
of the internal implementation of exclude_list_groups.  Therefore
when adding items to an exclude list, it should be accessed via the
pointer returned from add_exclude_list(), rather than by referencing
a location within dir.exclude_list_groups[EXC_CMDL].

Signed-off-by: Adam Spiers <git@adamspiers.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-01-16 09:43:35 -08:00
Martin von Zweigbergk 3fde386a40 reset [--mixed]: use diff-based reset whether or not pathspec was given
Thanks to b65982b (Optimize "diff-index --cached" using cache-tree,
2009-05-20), resetting with paths is much faster than resetting
without paths. Some timings for the linux-2.6 repo to illustrate this
(best of five, warm cache):

        reset       reset .
real    0m0.219s    0m0.080s
user    0m0.140s    0m0.040s
sys     0m0.070s    0m0.030s

These two commands should do the same thing, so instead of having the
user type the trailing " ." to get the faster do_diff_cache()-based
implementation, always use it when doing a mixed reset, with or
without paths (so "git reset $rev" would also be faster).

Timing "git reset" shows that it indeed becomes as fast as
"git reset ." after this patch.

Signed-off-by: Martin von Zweigbergk <martinvonz@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-01-15 09:38:08 -08:00
Martin von Zweigbergk 166ec2e96e reset: allow reset on unborn branch
Some users seem to think, knowingly or not, that being on an unborn
branch is like having a commit with an empty tree checked out, but
when run on an unborn branch, "git reset" currently fails with:

  fatal: Failed to resolve 'HEAD' as a valid ref.

Instead of making users figure out that they should run

 git rm --cached -r .

, let's teach "git reset" without a revision argument, when on an
unborn branch, to behave as if the user asked to reset to an empty
tree. Don't take the analogy with an empty commit too far, though, but
still disallow explictly referring to HEAD in "git reset HEAD".

Signed-off-by: Martin von Zweigbergk <martinvonz@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-01-15 09:38:08 -08:00
Martin von Zweigbergk 2f328c3d2e reset $sha1 $pathspec: require $sha1 only to be treeish
Resetting with paths does not update HEAD and there is nothing else
that a commit should be needed for. Relax the argument parsing so only
a tree is required.

The sha1 is only passed to read_from_tree(), which already only
requires a tree.

The "rev" variable we pass to run_add_interactive() will resolve to a
tree. This is fine since interactive_reset only needs the parameter to
be a treeish and doesn't use it for display purposes.

Signed-off-by: Martin von Zweigbergk <martinvonz@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-01-15 09:38:08 -08:00
Martin von Zweigbergk 7637df131e reset.c: inline update_index_refresh()
Now that there is only one caller left to the single-line method
update_index_refresh(), inline it.

Signed-off-by: Martin von Zweigbergk <martinvonz@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-01-15 09:38:08 -08:00
Martin von Zweigbergk 3bbf2f20f6 reset.c: finish entire cmd_reset() whether or not pathspec is given
By not returning from inside the "if (pathspec)" block, we can let the
pathspec-aware and pathspec-less code share a bit more, making it
easier to make future changes that should affect both cases. This also
highlights the similarity between read_from_tree() and reset_index().

Signed-off-by: Martin von Zweigbergk <martinvonz@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-01-15 09:38:08 -08:00
Martin von Zweigbergk bc41bf422e reset [--mixed]: only write index file once
When doing a mixed reset without paths, the index is locked, read,
reset, and written back as part of the actual reset operation (in
reset_index()). Then, when showing the list of worktree modifications,
we lock the index again, refresh it, and write it.

Change this so we only write the index once, making "git reset" a
little faster. It does mean that the index lock will be held a little
longer, but the difference is small compared to the time spent
refreshing the index.

There is one minor functional difference: We used to say "Could not
write new index file." if the first write failed, and "Could not
refresh index" if the second write failed. Now, we will only use the
first message.

This speeds up "git reset" a little on the linux-2.6 repo (best of
five, warm cache):

        Before      After
real    0m0.239s    0m0.214s
user    0m0.160s    0m0.130s
sys     0m0.070s    0m0.080s

Signed-off-by: Martin von Zweigbergk <martinvonz@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-01-15 09:38:08 -08:00
Martin von Zweigbergk 01a19dfc1a reset.c: move lock, write and commit out of update_index_refresh()
In preparation for the/a following patch, move the locking, writing
and committing of the index file out of update_index_refresh(). The
code duplication caused will soon be taken care of. What remains of
update_index_refresh() is just one line, but it is still called from
two places, so let's leave it for now.

In the process, we expose and fix the minor UI bug that makes us print
"Could not refresh index" when we fail to write the index file when
invoked with a pathspec. Copy the error message from the pathspec-less
codepath ("Could not write new index file.").

Signed-off-by: Martin von Zweigbergk <martinvonz@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-01-15 09:38:08 -08:00
Martin von Zweigbergk bf883f3006 reset.c: move update_index_refresh() call out of read_from_tree()
The final part of cmd_reset() essentially looks like:

  if (pathspec) {
    ...
    read_from_tree(...);
  } else {
    ...
    reset_index(...);
    update_index_refresh(...);
    ...
  }

where read_from_tree() internally also calls
update_index_refresh(). Move the call to update_index_refresh() out of
read_from_tree for symmetry with the 'else' block, making
read_from_tree() and reset_index() closer in functionality.

Signed-off-by: Martin von Zweigbergk <martinvonz@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-01-15 09:38:08 -08:00
Martin von Zweigbergk b489097e1d reset.c: replace switch by if-else
The switch statement towards the end of reset.c is missing case arms
for KEEP and MERGE for no obvious reason, and soon the only non-empty
case arm will be the one for HARD. So let's proactively replace it by
if-else, which will let us move one if statement out without leaving
funny-looking left-overs.

Signed-off-by: Martin von Zweigbergk <martinvonz@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-01-15 09:38:08 -08:00
Martin von Zweigbergk 1ca38f8586 reset: avoid redundant error message
If writing or committing the new index file fails, we print "Could not
write new index file." followed by "Could not reset index file to
revision $rev.". The first message seems to imply the second, so print
only the first message.

Signed-off-by: Martin von Zweigbergk <martinvonz@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-01-15 09:38:07 -08:00
Martin von Zweigbergk b7099a06e8 reset --keep: only write index file once
"git reset --keep" calls reset_index_file() twice, first doing a
two-way merge to the target revision, updating the index and worktree,
and then resetting the index. After each call, we write the index
file.

In the unlikely event that the second call to reset_index_file()
fails, the index will have been merged to the target revision, but
HEAD will not be updated, leaving the user with a dirty index.

By moving the locking, writing and committing out of
reset_index_file() and into the caller, we can avoid writing the index
twice, thereby making the sure we don't end up in the half-way reset
state. As a bonus, we speed up "git reset --keep" a little on the
linux-2.6 repo (best of five, warm cache):

        Before      After
real    0m0.315s    0m0.296s
user    0m0.290s    0m0.280s
sys     0m0.020s    0m0.010s

Signed-off-by: Martin von Zweigbergk <martinvonz@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-01-15 09:38:07 -08:00
Martin von Zweigbergk 352f58a57b reset.c: share call to die_if_unmerged_cache()
Use a single condition to guard the call to die_if_unmerged_cache for
both --soft and --keep. This avoids the small distraction of the
precondition check from the logic following it.

Also change an instance of

  if (e)
    err = err || f();

to the almost as short, but clearer

  if (e && !err)
    err = f();

(which is equivalent since we only care whether exit code is 0)

Signed-off-by: Martin von Zweigbergk <martinvonz@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-01-15 09:38:07 -08:00
Martin von Zweigbergk 7bca0e451b reset.c: extract function for updating {ORIG_,}HEAD
By extracting the code for updating the HEAD and ORIG_HEAD symbolic
references to a separate function, we declutter cmd_reset() a bit and
we make it clear that e.g. the four variables {,sha1_}{,old_}orig are
only used by this code.

Signed-off-by: Martin von Zweigbergk <martinvonz@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-01-15 09:38:07 -08:00
Martin von Zweigbergk dca48cf520 reset.c: remove unnecessary variable 'i'
Throughout most of parse_args(), the variable 'i' remains at 0. Many
references are still made to the variable even when it could only have
the value 0. This made at least me, who has relatively little
experience with C programming styles, think that parts of the function
was meant to be part of a loop. To avoid such confusion, remove the
variable and also the 'argc' parameter and check for NULL trailing
argv instead.

Signed-off-by: Martin von Zweigbergk <martinvonz@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-01-15 09:38:07 -08:00
Martin von Zweigbergk 39ea722d82 reset.c: extract function for parsing arguments
Declutter cmd_reset() a bit by moving out the argument parsing to its
own function.

Signed-off-by: Martin von Zweigbergk <martinvonz@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-01-15 09:38:07 -08:00
Martin von Zweigbergk 4f4ad3d938 reset: don't allow "git reset -- $pathspec" in bare repo
Running e.g. "git reset ." in a bare repo results in an index file
being created from the HEAD commit. The differences compared to the
index are then printed as usual, but since there is no worktree, it
will appear as if all files are deleted. For example, in a bare clone
of git.git:

  Unstaged changes after reset:
  D       .gitattributes
  D       .gitignore
  D       .mailmap
  ...

This happens because the check for is_bare_repository() happens after
we branch off into read_from_tree() to reset with paths. Fix by moving
the branching point after the check.

Signed-off-by: Martin von Zweigbergk <martinvonz@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-01-15 09:38:07 -08:00
Martin von Zweigbergk 18648e89e7 reset.c: pass pathspec around instead of (prefix, argv) pair
We use the path arguments in two places in reset.c: in
interactive_reset() and read_from_tree(). Both of these call
get_pathspec(), so we pass the (prefix, argv) pair to both
functions. Move the call to get_pathspec() out of these methods, for
two reasons: 1) One argument is simpler than two. 2) It lets us use
the (arguably clearer) "if (pathspec)" in place of "if (i < argc)".

Signed-off-by: Martin von Zweigbergk <martinvonz@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-01-15 09:38:07 -08:00
Martin von Zweigbergk d94c5e2fa2 reset $pathspec: exit with code 0 if successful
"git reset $pathspec" currently exits with a non-zero exit code if the
worktree is dirty after resetting, which is inconsistent with reset
without pathspec, and it makes it harder to know whether the command
really failed. Change it to exit with code 0 regardless of whether the
worktree is dirty so that non-zero indicates an error.

This makes the 4 "disambiguation" test cases in t7102 clearer since
they all used to "fail", 3 of which "failed" due to changes in the
work tree. Now only the ambiguous one fails.

Signed-off-by: Martin von Zweigbergk <martinvonz@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-01-15 09:38:07 -08:00
Martin von Zweigbergk 10746a3616 reset $pathspec: no need to discard index
Since 34110cd (Make 'unpack_trees()' have a separate source and
destination index, 2008-03-06), the index no longer gets clobbered by
do_diff_cache() and we can remove the code for discarding and
re-reading it.

There are two paths to update_index_refresh() from cmd_reset(), but on
both paths, either read_cache() or read_cache_unmerged() will have
been called, so the call to read_cache() in this method is redundant
(although practically free).

This speeds up "git reset -- ." a little on the linux-2.6 repo (best
of five, warm cache):

        Before      After
real    0m0.093s    0m0.080s
user    0m0.040s    0m0.020s
sys     0m0.050s    0m0.050s

Signed-off-by: Martin von Zweigbergk <martinvonz@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-01-15 09:38:06 -08:00
Aaron Schrab 5a7da2dca1 hooks: Add function to check if a hook exists
Create find_hook() function to determine if a given hook exists and is
executable.  If it is, the path to the script will be returned,
otherwise NULL is returned.

This encapsulates the tests that are used to check for the existence of
a hook in one place, making it easier to modify those checks if that is
found to be necessary.  This also makes it simple for places that can
use a hook to check if a hook exists before doing, possibly lengthy,
setup work which would be pointless if no such hook is present.

The returned value is left as a static value from get_pathname() rather
than a duplicate because it is anticipated that the return value will
either be used as a boolean, immediately added to an argv_array list
which would result in it being duplicated at that point, or used to
actually run the command without much intervening work.  Callers which
need to hold onto the returned value for a longer time are expected to
duplicate the return value themselves.

Signed-off-by: Aaron Schrab <aaron@schrab.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-01-14 09:25:40 -08:00
Zoltan Klinger f538a91e3c git-clean: Display more accurate delete messages
(1) Only print out the names of the files and directories that got
    actually deleted. Also do not mention that we are not removing
    directories when the user did not ask us to do so with '-d'.
(2) Show ignore message for skipped untracked git repositories.

Consider the following repo layout:

  test.git/
    |-- tracked_dir/
    |     |-- some_tracked_file
    |     |-- some_untracked_file
    |-- tracked_file
    |-- untracked_file
    |-- untracked_foo/
    |     |-- bar/
    |     |     |-- bar.txt
    |     |-- emptydir/
    |     |-- frotz.git/
    |           |-- frotz.tx
    |-- untracked_some.git/
          |-- some.txt

Suppose the user issues 'git clean -fd' from the test.git directory.

When -d option is used and untracked directory 'foo' contains a
subdirectory 'frotz.git' that is managed by a different git repository
therefore it will not be removed.

  $ git clean -fd
  Removing tracked_dir/some_untracked_file
  Removing untracked_file
  Removing untracked_foo/
  Removing untracked_some.git/

The message displayed to the user is slightly misleading. The foo/
directory has not been removed because of foo/frotz.git still exists.
On the other hand the subdirectories 'bar' and 'emptydir' have been
deleted but they're not mentioned anywhere. Also, untracked_some.git
has not been removed either.

This behaviour is the result of the way the deletion of untracked
directories are reported. In the current implementation they are
deleted recursively but only the name of the top most directory is
printed out. The calling function does not know about any
subdirectories that could not be removed during the recursion.

Improve the way the deleted directories are reported back to
the user:
  (1) Create a recursive delete function 'remove_dirs' in builtin/clean.c
      to run in both dry_run and delete modes with the delete logic as
      follows:
        (a) Check if the current directory to be deleted is an untracked
            git repository. If it is and --force --force option is not set
            do not touch this directory, print ignore message, set dir_gone
            flag to false for the caller and return.
        (b) Otherwise for each item in current directory:
              (i)   If current directory cannot be accessed, print warning,
                    set dir_gone flag to false and return.
              (ii)  If the item is a subdirectory recurse into it,
                    check for the returned value of the dir_gone flag.
                    If the subdirectory is gone, add the name of the deleted
                    directory to a list of successfully removed items 'dels'.
                    Else set the dir_gone flag as the current directory
                    cannot be removed because we have at least one subdirectory
                    hanging around.
              (iii) If it is a file try to remove it. If success add the
                    file name to the 'dels' list, else print error and set
                    dir_gone flag to false.
        (c) After we finished deleting all items in the current directory and
            the dir_gone flag is still true, remove the directory itself.
            If failed set the dir_gone flag to false.

        (d) If the current directory cannot be deleted because the dir_gone flag
            has been set to false, print out all the successfully deleted items
            for this directory from the 'dels' list.
        (e) We're done with the current directory, return.

  (2) Modify the cmd_clean() function to:
        (a) call the recursive delete function 'remove_dirs()' for each
            topmost directory it wants to remove
        (b) check for the returned value of dir_gone flag. If it's true
            print the name of the directory as being removed.

Consider the output of the improved version:

  $ git clean -fd
  Removing tracked_dir/some_untracked_file
  Removing untracked_file
  Skipping repository untracked_foo/frotz.git
  Removing untracked_foo/bar
  Removing untracked_foo/emptydir
  Skipping repository untracked_some.git/

Now it displays only the file and directory names that got actually
deleted and shows the name of the untracked git repositories it ignored.

Reported-by: Soren Brinkmann <soren.brinkmann@xilinx.com>

Signed-off-by: Zoltan Klinger <zoltan.klinger@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-01-14 08:55:36 -08:00
Junio C Hamano 90d0b8a9f0 Merge branch 'jc/blame-no-follow'
Teaches "--no-follow" option to "git blame" to disable its
whole-file rename detection.

* jc/blame-no-follow:
  blame: pay attention to --no-follow
  diff: accept --no-follow option
2013-01-14 08:15:51 -08:00
Junio C Hamano 32e820bdc5 Merge branch 'jl/interrupt-clone-remove-separate-git-dir' into maint
When "git clone --separate-git-dir=$over_there" is interrupted, it
failed to remove the real location of the $GIT_DIR it created.  This
was most visible when interrupting a submodule update.

* jl/interrupt-clone-remove-separate-git-dir:
  clone: support atomic operation with --separate-git-dir
2013-01-14 07:33:49 -08:00
Junio C Hamano bc60f9f377 Merge branch 'jc/maint-fmt-merge-msg-no-edit-lose-credit' into maint
"git merge --no-edit" computed who were involved in the work done
on the side branch, even though that information is to be discarded
without getting seen in the editor.

* jc/maint-fmt-merge-msg-no-edit-lose-credit:
  merge --no-edit: do not credit people involved in the side branch
2013-01-14 07:33:30 -08:00
Junio C Hamano 7842c44ccb Merge branch 'jc/apply-trailing-blank-removal' into maint
"git apply" misbehaved when fixing whitespace breakages by removing
excess trailing blank lines.

* jc/apply-trailing-blank-removal:
  apply.c:update_pre_post_images(): the preimage can be truncated
2013-01-14 07:33:08 -08:00
Junio C Hamano c566ea13fd Merge branch 'jc/merge-blobs'
Update the disused merge-tree proof-of-concept code.

* jc/merge-blobs:
  merge-tree: fix d/f conflicts
  merge-tree: add comments to clarify what these functions are doing
  merge-tree: lose unused "resolve_directories"
  merge-tree: lose unused "flags" from merge_list
  Which merge_file() function do you mean?
2013-01-11 18:34:24 -08:00
Junio C Hamano 98294e9875 Merge branch 'jc/format-patch-reroll'
Teach "format-patch" to prefix v4- to its output files for the
fourth iteration of a patch series, to make it easier for the
submitter to keep separate copies for iterations.

* jc/format-patch-reroll:
  format-patch: give --reroll-count a short synonym -v
  format-patch: document and test --reroll-count
  format-patch: add --reroll-count=$N option
  get_patch_filename(): split into two functions
  get_patch_filename(): drop "just-numbers" hack
  get_patch_filename(): simplify function signature
  builtin/log.c: stop using global patch_suffix
  builtin/log.c: drop redundant "numbered_files" parameter from make_cover_letter()
  builtin/log.c: drop unused "numbered" parameter from make_cover_letter()
2013-01-11 18:34:10 -08:00
Junio C Hamano b663af57c3 Merge branch 'ap/merge-stop-at-prepare-commit-msg-failure' into maint
"git merge" started calling prepare-commit-msg hook like "git
commit" does some time ago, but forgot to pay attention to the exit
status of the hook.

* ap/merge-stop-at-prepare-commit-msg-failure:
  merge: Honor prepare-commit-msg return code
2013-01-11 16:49:01 -08:00
Junio C Hamano 3f4f4cc0da clone: do not export and unexport GIT_CONFIG
Earlier, dc87183 (use GIT_CONFIG only in "git config", not other
programs, 2008-06-30) made sure that the environment variable is
never used outside "git config", but "git clone", after creating a
directory for the new repository and until the init_db() function
populates its .git/ directory, exported the variable for no good
reason.  No hook will run from init_db() and more importantly no
hook can run until init_db() finishes creation of the new
repository, so it cannot be used by any invocation of "git config"
by definition.

Stop doing the useless export/unexport.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-01-11 14:57:10 -08:00
Nguyễn Thái Ngọc Duy 4dcb167fc3 fetch: add --unshallow for turning shallow repo into complete one
The user can do --depth=2147483647 (*) for restoring complete repo
now. But it's hard to remember. Any other numbers larger than the
longest commit chain in the repository would also do, but some
guessing may be involved. Make easy-to-remember --unshallow an alias
for --depth=2147483647.

Make upload-pack recognize this special number as infinite depth. The
effect is essentially the same as before, except that upload-pack is
more efficient because it does not have to traverse to the bottom
anymore.

The chance of a user actually wanting exactly 2147483647 commits
depth, not infinite, on a repository with a history that long, is
probably too small to consider. The client can learn to add or
subtract one commit to avoid the special treatment when that actually
happens.

(*) This is the largest positive number a 32-bit signed integer can
    contain. JGit and older C Git store depth as "int" so both are OK
    with this number. Dulwich does not support shallow clone.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-01-11 09:09:30 -08:00
Nguyễn Thái Ngọc Duy 95b63f1ebb clone: forbid --bare --separate-git-dir <dir>
The --separate-git-dir option was introduced to make it simple to put
the git directory somewhere outside the worktree, for example when
cloning a repository for use as a submodule.

It was not intended for use when creating a bare repository. In that
case there is no worktree and it is more natural to directly clone the
repository and create a .git file as separate steps:

        git clone --bare /path/to/repo.git bar.git
        printf 'gitdir: bar.git\n' >foo.git

Forbid the combination, making the command easier to explain.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-01-10 19:13:17 -08:00
Junio C Hamano 74474a94f2 Merge branch 'sp/shortlog-missing-lf' into maint
* sp/shortlog-missing-lf:
  strbuf_add_wrapped*(): Remove unused return value
  shortlog: fix wrapping lines of wraplen
2013-01-10 14:04:23 -08:00
Junio C Hamano 63d1cf6526 Merge branch 'jl/interrupt-clone-remove-separate-git-dir'
When "git clone --separate-git-dir" is interrupted, we failed to
remove the real location we created the repository.

* jl/interrupt-clone-remove-separate-git-dir:
  clone: support atomic operation with --separate-git-dir
2013-01-10 13:47:30 -08:00
Junio C Hamano d912b0e44f Merge branch 'as/dir-c-cleanup'
Refactor and generally clean up the directory traversal API
implementation.

* as/dir-c-cleanup:
  dir.c: rename free_excludes() to clear_exclude_list()
  dir.c: refactor is_path_excluded()
  dir.c: refactor is_excluded()
  dir.c: refactor is_excluded_from_list()
  dir.c: rename excluded() to is_excluded()
  dir.c: rename excluded_from_list() to is_excluded_from_list()
  dir.c: rename path_excluded() to is_path_excluded()
  dir.c: rename cryptic 'which' variable to more consistent name
  Improve documentation and comments regarding directory traversal API
  api-directory-listing.txt: update to match code
2013-01-10 13:47:25 -08:00
Junio C Hamano cf6c52fce8 Merge branch 'jc/maint-fmt-merge-msg-no-edit-lose-credit'
Stop spending cycles to compute information to be placed on
commented lines in "merge --no-edit", which will be discarded
anyway.

* jc/maint-fmt-merge-msg-no-edit-lose-credit:
  merge --no-edit: do not credit people involved in the side branch
2013-01-10 13:46:29 -08:00
Antoine Pelisse e6bb5f78fb log: add log.mailmap configuration option
Teach "log.mailmap" configuration variable to turn "--use-mailmap"
option on to "git log", "git show" and "git whatchanged".

The "--no-use-mailmap" option from the command line can countermand
the setting.

Signed-off-by: Antoine Pelisse <apelisse@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-01-10 12:33:09 -08:00
Antoine Pelisse ea57bc0d41 log: add --use-mailmap option
Add the --use-mailmap option to log commands. It allows to display
names from mailmap file when displaying logs, whatever the format
used.

Signed-off-by: Antoine Pelisse <apelisse@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-01-10 12:33:08 -08:00
Antoine Pelisse ea02ffa385 mailmap: simplify map_user() interface
Simplify map_user(), mostly to avoid copies of string buffers. It
also simplifies caller functions.

map_user() directly receive pointers and length from the commit buffer
as mail and name. If mapping of the user and mail can be done, the
pointer is updated to a new location. Lengths are also updated if
necessary.

The caller of map_user() can then copy the new email and name if
necessary.

Signed-off-by: Antoine Pelisse <apelisse@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-01-10 12:33:08 -08:00