Commit graph

197 commits

Author SHA1 Message Date
René Scharfe
bbc072f5d8 parseopt: group literal string alternatives in argument help
This formally clarifies that the "--option=" part is the same for all
alternatives.

Signed-off-by: Rene Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-08-21 11:35:54 -07:00
Junio C Hamano
c757aa2d12 Merge branch 'js/pull-rebase-type-shorthand'
"git pull --rebase=interactive" learned "i" as a short-hand for
"interactive".

* js/pull-rebase-type-shorthand:
  pull --rebase=<type>: allow single-letter abbreviations for the type
2018-08-17 13:09:59 -07:00
Johannes Schindelin
46af44b07d pull --rebase=<type>: allow single-letter abbreviations for the type
Git for Windows' original 4aa8b8c828 (Teach 'git pull' to handle
--rebase=interactive, 2011-10-21) had support for the very convenient
abbreviation

	git pull --rebase=i

which was later lost when it was ported to the builtin `git pull`, and
it was not introduced before the patch eventually made it into Git as
f5eb87b98d (pull: allow interactive rebase with --rebase=interactive,
2016-01-13).

However, it is *really* a useful short hand for the occasional rebasing
pull on branches that do not usually want to be rebased.

So let's reintroduce this convenience, at long last.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-08-06 13:04:28 -07:00
Derrick Stolee
6404355657 commit.h: remove method declarations
These methods are now declared in commit-reach.h. Remove them from
commit.h and add new include statements in all files that require these
declarations.

Signed-off-by: Derrick Stolee <dstolee@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-07-20 15:38:54 -07:00
Stefan Beller
2122f6754c commit: add repository argument to lookup_commit_reference
Add a repository argument to allow callers of lookup_commit_reference
to be more specific about which repository to handle. This is a small
mechanical change; it doesn't change the implementation to handle
repositories other than the_repository yet.

As with the previous commits, use a macro to catch callers passing a
repository other than the_repository at compile time.

Signed-off-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-06-29 10:43:39 -07:00
Junio C Hamano
b16b60f71b Merge branch 'sb/object-store-grafts' into sb/object-store-lookup
* sb/object-store-grafts:
  commit: allow lookup_commit_graft to handle arbitrary repositories
  commit: allow prepare_commit_graft to handle arbitrary repositories
  shallow: migrate shallow information into the object parser
  path.c: migrate global git_path_* to take a repository argument
  cache: convert get_graft_file to handle arbitrary repositories
  commit: convert read_graft_file to handle arbitrary repositories
  commit: convert register_commit_graft to handle arbitrary repositories
  commit: convert commit_graft_pos() to handle arbitrary repositories
  shallow: add repository argument to is_repository_shallow
  shallow: add repository argument to check_shallow_file_for_update
  shallow: add repository argument to register_shallow
  shallow: add repository argument to set_alternate_shallow_file
  commit: add repository argument to lookup_commit_graft
  commit: add repository argument to prepare_commit_graft
  commit: add repository argument to read_graft_file
  commit: add repository argument to register_commit_graft
  commit: add repository argument to commit_graft_pos
  object: move grafts to object parser
  object-store: move object access functions to object-store.h
2018-06-29 10:43:28 -07:00
Junio C Hamano
a909726903 Merge branch 'ab/refspec-init-fix'
Make refspec parsing codepath more robust.

* ab/refspec-init-fix:
  refspec: initalize `refspec_item` in `valid_fetch_refspec()`
  refspec: add back a refspec_item_init() function
  refspec: s/refspec_item_init/&_or_die/g
2018-06-28 12:53:29 -07:00
Junio C Hamano
929c097548 Merge branch 'rd/doc-remote-tracking-with-hyphen'
Doc update.

* rd/doc-remote-tracking-with-hyphen:
  Use hyphenated "remote-tracking branch" (docs and comments)
2018-06-18 10:18:43 -07:00
Robert P. J. Day
30aa96cdf8 Use hyphenated "remote-tracking branch" (docs and comments)
Use the obvious consensus of hyphenated "remote-tracking branch", and
fix an obvious typo, all in documentation and comments.

Signed-off-by: Robert P. J. Day <rpjday@crashcourse.ca>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-06-13 09:57:09 -07:00
Ævar Arnfjörð Bjarmason
dc06422183 refspec: s/refspec_item_init/&_or_die/g
Rename the refspec_item_init() function introduced in
6d4c057859 ("refspec: introduce struct refspec", 2018-05-16) to
refspec_item_init_or_die().

This follows the convention of other *_or_die() functions, and is done
in preparation for making it a wrapper for a non-fatal variant.

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-06-11 10:11:29 -07:00
Junio C Hamano
e12cbeaa62 Merge branch 'bw/ref-prefix-for-configured-refspec'
"git fetch $there $refspec" that talks over protocol v2 can take
advantage of server-side ref filtering; the code has been extended
so that this mechanism triggers also when fetching with configured
refspec.

* bw/ref-prefix-for-configured-refspec: (38 commits)
  fetch: generate ref-prefixes when using a configured refspec
  refspec: consolidate ref-prefix generation logic
  submodule: convert push_unpushed_submodules to take a struct refspec
  remote: convert check_push_refs to take a struct refspec
  remote: convert match_push_refs to take a struct refspec
  http-push: store refspecs in a struct refspec
  transport: remove transport_verify_remote_names
  send-pack: store refspecs in a struct refspec
  transport: convert transport_push to take a struct refspec
  push: convert to use struct refspec
  push: check for errors earlier
  remote: convert match_explicit_refs to take a struct refspec
  remote: convert get_ref_match to take a struct refspec
  remote: convert query_refspecs to take a struct refspec
  remote: convert apply_refspecs to take a struct refspec
  remote: convert get_stale_heads to take a struct refspec
  fetch: convert prune_refs to take a struct refspec
  fetch: convert get_ref_map to take a struct refspec
  fetch: convert do_fetch to take a struct refspec
  refspec: remove the deprecated functions
  ...
2018-05-30 21:51:26 +09:00
Junio C Hamano
50f08db594 Merge branch 'js/use-bug-macro'
Developer support update, by using BUG() macro instead of die() to
mark codepaths that should not happen more clearly.

* js/use-bug-macro:
  BUG_exit_code: fix sparse "symbol not declared" warning
  Convert remaining die*(BUG) messages
  Replace all die("BUG: ...") calls by BUG() ones
  run-command: use BUG() to report bugs, not die()
  test-tool: help verifying BUG() code paths
2018-05-30 14:04:07 +09:00
Stefan Beller
102de880d2 path.c: migrate global git_path_* to take a repository argument
Migrate all git_path_* functions that are defined in path.c to take a
repository argument. Unlike other patches in this series, do not use the
 #define trick, as we rewrite the whole function, which is rather small.

This doesn't migrate all the functions, as other builtins have their own
local path functions defined using GIT_PATH_FUNC. So keep that macro
around to serve the other locations.

Signed-off-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-05-18 08:13:10 +09:00
Brandon Williams
895d391258 pull: convert get_tracking_branch to use refspec_item_init
Convert 'get_tracking_branch()' to use 'refspec_item_init()' instead of
the old 'parse_fetch_refspec()' function.

Signed-off-by: Brandon Williams <bmwill@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-05-18 06:19:42 +09:00
Brandon Williams
0ad4a5ff50 refspec: rename struct refspec to struct refspec_item
In preparation for introducing an abstraction around a collection of
refspecs (much like how a 'struct pathspec' is a collection of 'struct
pathspec_item's) rename the existing 'struct refspec' to 'struct
refspec_item'.

Signed-off-by: Brandon Williams <bmwill@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-05-18 06:19:41 +09:00
Brandon Williams
ec0cb49655 refspec: move refspec parsing logic into its own file
In preparation for performing a refactor on refspec related code, move
the refspec parsing logic into its own file.

Signed-off-by: Brandon Williams <bmwill@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-05-18 06:19:41 +09:00
Johannes Schindelin
033abf97fc Replace all die("BUG: ...") calls by BUG() ones
In d8193743e0 (usage.c: add BUG() function, 2017-05-12), a new macro
was introduced to use for reporting bugs instead of die(). It was then
subsequently used to convert one single caller in 588a538ae5
(setup_git_env: convert die("BUG") to BUG(), 2017-05-12).

The cover letter of the patch series containing this patch
(cf 20170513032414.mfrwabt4hovujde2@sigill.intra.peff.net) is not
terribly clear why only one call site was converted, or what the plan
is for other, similar calls to die() to report bugs.

Let's just convert all remaining ones in one fell swoop.

This trick was performed by this invocation:

	sed -i 's/die("BUG: /BUG("/g' $(git grep -l 'die("BUG' \*.c)

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-05-06 19:06:13 +09:00
Johannes Schindelin
1131ec9818 pull: accept --rebase=merges to recreate the branch topology
Similar to the `preserve` mode simply passing the `--preserve-merges`
option to the `rebase` command, the `merges` mode simply passes the
`--rebase-merges` option.

This will allow users to conveniently rebase non-trivial commit
topologies when pulling new commits, without flattening them.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-04-26 12:28:43 +09:00
Stefan Beller
d807c4a01d exec_cmd: rename to use dash in file name
This is more consistent with the project style. The majority of Git's
source files use dashes in preference to underscores in their file names.

Signed-off-by: Stefan Beller <sbeller@google.com>
2018-04-11 18:11:00 +09:00
Junio C Hamano
7fb6aefd2a Merge branch 'nd/parseopt-completion'
Teach parse-options API an option to help the completion script,
and make use of the mechanism in command line completion.

* nd/parseopt-completion: (45 commits)
  completion: more subcommands in _git_notes()
  completion: complete --{reuse,reedit}-message= for all notes subcmds
  completion: simplify _git_notes
  completion: don't set PARSE_OPT_NOCOMPLETE on --rerere-autoupdate
  completion: use __gitcomp_builtin in _git_worktree
  completion: use __gitcomp_builtin in _git_tag
  completion: use __gitcomp_builtin in _git_status
  completion: use __gitcomp_builtin in _git_show_branch
  completion: use __gitcomp_builtin in _git_rm
  completion: use __gitcomp_builtin in _git_revert
  completion: use __gitcomp_builtin in _git_reset
  completion: use __gitcomp_builtin in _git_replace
  remote: force completing --mirror= instead of --mirror
  completion: use __gitcomp_builtin in _git_remote
  completion: use __gitcomp_builtin in _git_push
  completion: use __gitcomp_builtin in _git_pull
  completion: use __gitcomp_builtin in _git_notes
  completion: use __gitcomp_builtin in _git_name_rev
  completion: use __gitcomp_builtin in _git_mv
  completion: use __gitcomp_builtin in _git_merge_base
  ...
2018-03-14 12:01:07 -07:00
Junio C Hamano
157ee05061 Merge branch 'sb/pull-rebase-submodule'
"git pull --rebase" did not pass verbosity setting down when
recursing into a submodule.

* sb/pull-rebase-submodule:
  builtin/pull: respect verbosity settings in submodules
2018-02-15 14:55:43 -08:00
Nguyễn Thái Ngọc Duy
1224781d60 parse-options: let OPT__FORCE take optional flags argument
--force option is most likely hidden from command line completion for
safety reasons. This is done by adding an extra flag
PARSE_OPT_NOCOMPLETE. Update OPT__FORCE() to accept additional
flags. Actual flag change comes later depending on individual
commands.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-02-09 10:24:50 -08:00
Stefan Beller
a56771a668 builtin/pull: respect verbosity settings in submodules
In a6d7eb2c7a (pull: optionally rebase submodules (remote submodule
changes only), 2017-06-23), we taught Git how to rebase submodules in
a pull. However we missed to pass on the verbosity settings.

Reported-by: Robin H. Johnson <robbat2@gentoo.org>
Signed-off-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-01-25 11:19:21 -08:00
Junio C Hamano
721cc4314c Merge branch 'bc/hash-algo'
An infrastructure to define what hash function is used in Git is
introduced, and an effort to plumb that throughout various
codepaths has been started.

* bc/hash-algo:
  repository: fix a sparse 'using integer as NULL pointer' warning
  Switch empty tree and blob lookups to use hash abstraction
  Integrate hash algorithm support with repo setup
  Add structure representing hash algorithm
  setup: expose enumerated repo info
2017-12-13 13:28:54 -08:00
Junio C Hamano
c2b6135a1b Merge branch 'sw/pull-ipv46-passthru'
Contrary to the documentation, "git pull -4/-6 other-args" did not
ask the underlying "git fetch" to go over IPv4/IPv6, which has been
corrected.

* sw/pull-ipv46-passthru:
  pull: pass -4/-6 option to 'git fetch'
2017-11-27 11:06:40 +09:00
Shuyu Wei
ffb4568afe pull: pass -4/-6 option to 'git fetch'
The -4/-6 option should be passed through to 'git fetch' to be
consistent with the man page.

Signed-off-by: Wei Shuyu <wsy@dogben.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-11-21 09:53:48 +09:00
Junio C Hamano
905f16dd02 Merge branch 'ma/reduce-heads-leakfix'
Leak fixes.

* ma/reduce-heads-leakfix:
  reduce_heads: fix memory leaks
  builtin/merge-base: free commit lists
2017-11-15 12:14:32 +09:00
brian m. carlson
eb0ccfd7f5 Switch empty tree and blob lookups to use hash abstraction
Switch the uses of empty_tree_oid and empty_blob_oid to use the
current_hash abstraction that represents the current hash algorithm in
use.

Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-11-13 13:20:44 +09:00
Martin Ågren
4da72644b7 reduce_heads: fix memory leaks
We currently have seven callers of `reduce_heads(foo)`. Six of them do
not use the original list `foo` again, and actually, all six of those
end up leaking it.

Introduce and use `reduce_heads_replace(&foo)` as a leak-free version of
`foo = reduce_heads(foo)` to fix several of these. Fix the remaining
leaks using `free_commit_list()`.

While we're here, document `reduce_heads()` and mark it as `extern`.

Signed-off-by: Martin Ågren <martin.agren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-11-08 11:34:00 +09:00
Junio C Hamano
e7e456f500 Merge branch 'bc/object-id'
Conversion from uchar[20] to struct object_id continues.

* bc/object-id: (25 commits)
  refs/files-backend: convert static functions to object_id
  refs: convert read_raw_ref backends to struct object_id
  refs: convert peel_object to struct object_id
  refs: convert resolve_ref_unsafe to struct object_id
  worktree: convert struct worktree to object_id
  refs: convert resolve_gitlink_ref to struct object_id
  Convert remaining callers of resolve_gitlink_ref to object_id
  sha1_file: convert index_path and index_fd to struct object_id
  refs: convert reflog_expire parameter to struct object_id
  refs: convert read_ref_at to struct object_id
  refs: convert peel_ref to struct object_id
  builtin/pack-objects: convert to struct object_id
  pack-bitmap: convert traverse_bitmap_commit_list to object_id
  refs: convert dwim_log to struct object_id
  builtin/reflog: convert remaining unsigned char uses to object_id
  refs: convert dwim_ref and expand_ref to struct object_id
  refs: convert read_ref and read_ref_full to object_id
  refs: convert resolve_refdup and refs_resolve_refdup to struct object_id
  Convert check_connected to use struct object_id
  refs: update ref transactions to use struct object_id
  ...
2017-11-06 14:24:27 +09:00
brian m. carlson
ae077771b0 refs: convert update_ref and refs_update_ref to use struct object_id
Convert update_ref, refs_update_ref, and write_pseudoref to use struct
object_id.  Update the existing callers as well.  Remove update_ref_oid,
as it is no longer needed.

Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-10-16 11:05:50 +09:00
W. Trevor King
3a4d2c7437 pull: pass --signoff/--no-signoff to "git merge"
merge can take --signoff, but without pull passing --signoff down, it
is inconvenient to use; allow 'pull' to take the option and pass it
through.

The order of options in merge-options.txt is mostly alphabetical by
long option since 7c85d274 (Documentation/merge-options.txt: order
options in alphabetical groups, 2009-10-22).  The long-option bit
didn't make it into the commit message, but it's under the fold in
[1].  I've put --signoff between --log and --stat to preserve the
alphabetical order.

[1]: https://public-inbox.org/git/87iqe7zspn.fsf@jondo.cante.net/

Signed-off-by: W. Trevor King <wking@tremily.us>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-10-13 10:47:36 +09:00
Nicolas Morey-Chaisemartin
121e43fa53 pull: honor submodule.recurse config option
"git pull" supports a --recurse-submodules option but does not parse the
submodule.recurse configuration item to set the default for that option.
Meanwhile "git fetch" does support submodule.recurse, producing
confusing behavior: when submodule.recurse is enabled, "git pull"
recursively fetches submodules but does not update them after fetch.

Handle submodule.recurse in "git pull" to fix this.

Reported-by: Magnus Homann <magnus@homann.se>
Signed-off-by: Nicolas Morey-Chaisemartin <nicolas@morey-chaisemartin.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-09-07 09:52:18 +09:00
Nicolas Morey-Chaisemartin
cad0c6928e pull: fix cli and config option parsing order
pull parses first the cli options and then the config option.
The expected behavior is the other way around, so that config
options can not override the cli ones.

This patch changes the parsing order so config options are
parsed first.

Signed-off-by: Nicolas Morey-Chaisemartin <nicolas@morey-chaisemartin.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-09-07 09:51:29 +09:00
Junio C Hamano
bdfcdefd2f Merge branch 'ma/parse-maybe-bool'
Code clean-up.

* ma/parse-maybe-bool:
  parse_decoration_style: drop unused argument `var`
  treewide: deprecate git_config_maybe_bool, use git_parse_maybe_bool
  config: make git_{config,parse}_maybe_bool equivalent
  config: introduce git_parse_maybe_bool_text
  t5334: document that git push --signed=1 does not work
  Doc/git-{push,send-pack}: correct --sign= to --signed=
2017-08-22 10:29:03 -07:00
Martin Ågren
8957661378 treewide: deprecate git_config_maybe_bool, use git_parse_maybe_bool
The only difference between these is that the former takes an argument
`name` which it ignores completely. Still, the callers are quite careful
to provide reasonable values for it.

Once in-flight topics have landed, we should be able to remove
git_config_maybe_bool. In the meantime, document it as deprecated in the
technical documentation. While at it, document git_parse_maybe_bool.

Signed-off-by: Martin Ågren <martin.agren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-08-07 13:29:22 -07:00
Junio C Hamano
c9c63ee558 Merge branch 'sb/pull-rebase-submodule'
"git pull --rebase --recurse-submodules" learns to rebase the
branch in the submodules to an updated base.

* sb/pull-rebase-submodule:
  builtin/fetch cleanup: always set default value for submodule recursing
  pull: optionally rebase submodules (remote submodule changes only)
  builtin/fetch: parse recurse-submodules-default at default options parsing
  builtin/fetch: factor submodule recurse parsing out to submodule config
2017-07-13 16:14:54 -07:00
Junio C Hamano
f31d23a399 Merge branch 'bw/config-h'
Fix configuration codepath to pay proper attention to commondir
that is used in multi-worktree situation, and isolate config API
into its own header file.

* bw/config-h:
  config: don't implicitly use gitdir or commondir
  config: respect commondir
  setup: teach discover_git_directory to respect the commondir
  config: don't include config.h by default
  config: remove git_config_iter
  config: create config.h
2017-06-24 14:28:41 -07:00
Stefan Beller
a6d7eb2c7a pull: optionally rebase submodules (remote submodule changes only)
Teach pull to optionally update submodules when '--recurse-submodules'
is provided.  This will teach pull to run 'submodule update --rebase'
when the '--recurse-submodules' and '--rebase' flags are given under
specific circumstances.

On a rebase workflow:
=====================

1. Both sides change the submodule
 ------------------------------
Let's assume the following history in a submodule:

  H---I---J---K---L local branch
       \
        M---N---O---P remote branch

and the following in the superproject (recorded submodule in parens):

  A(H)---B(I)---F(K)---G(L)  local branch
          \
           C(N)---D(N)---E(P) remote branch

In an ideal world this would rebase the submodule and rewrite
the submodule pointers that the superproject points at such that
the superproject looks like

  A(H)---B(I)              F(K')---G(L')  rebased branch
           \                /
           C(N)---D(N)---E(P) remote branch

and the submodule as:

        J---K---L (old dangeling tip)
       /
  H---I               J'---K'---L' rebased branch
       \             /
        M---N---O---P remote branch

And if a conflict arises in the submodule the superproject rebase
would stop at that commit at which the submodule conflict occurs.

Currently a "pull --rebase" in the superproject produces
a merge conflict as the submodule pointer changes are
conflicting and cannot be resolved.

2. Local submodule changes only
 -----------------------
Assuming histories as above, except that the remote branch
would not contain submodule changes, then a result as

  A(H)---B(I)               F(K)---G(L)  rebased branch
           \                /
           C(I)---D(I)---E(I) remote branch

is desire-able. This is what currently happens in rebase.

If the recursive flag is given, the ideal git would
produce a superproject as:

  A(H)---B(I)              F(K')---G(L')  rebased branch (incl. sub rebase!)
           \                /
           C(I)---D(I)---E(I) remote branch

and the submodule as:

        J---K---L (old dangeling tip)
       /
  H---I               J'---K'---L' locally rebased branch
       \             /
        M---N---O---P advanced branch

This patch doesn't address this issue, however
a test is added that this fails up front.

3. Remote submodule changes only
 ----------------------
Assuming histories as in (1) except that the local superproject branch
would not have touched the submodule the rebase already works out in the
superproject with no conflicts:

  A(H)---B(I)               F(P)---G(P)  rebased branch (no sub changes)
           \                 /
           C(N)---D(N)---E(P) remote branch

The recurse flag as presented in this patch would additionally
update the submodule as:

  H---I              J'---K'---L' rebased branch
       \            /
        M---N---O---P remote branch

As neither J, K, L nor J', K', L' are referred to from the superproject,
no rewriting of the superproject commits is required.

Conclusion for 'pull --rebase --recursive'
 -----------------------------------------
If there are no local superproject changes it is sufficient to call
"submodule update --rebase" as this produces the desired results. In case
of conflicts, the behavior is the same as in 'submodule update --recursive'
which is assumed to be sane.

This patch implements (3) only.

On a merge workflow:
====================

We'll start off with the same underlying DAG as in (1) in the rebase
workflow. So in an ideal world a 'pull --merge --recursive' would
produce this:

  H---I---J---K---L----X
       \              /
        M---N---O---P

with X as the new merge-commit in the submodule and the superproject
as:

  A(H)---B(I)---F(K)---G(L)---Y(X)
          \                  /
           C(N)---D(N)---E(P)

However modifying the submodules on the fly is not supported in git-merge
such that Y(X) is not easy to produce in a single patch. In fact git-merge
doesn't know about submodules at all.

However when at least one side does not contain commits touching the
submodule at all, then we do not need to perform the merge for the
submodule but a fast-forward can be done via checking out either L or P
in the submodule.  This strategy is implemented in 68d03e4a6e (Implement
automatic fast-forward merge for submodules, 2010-07-07) already, so
to align with the rebase behavior we need to also update the worktree
of the submodule.

Signed-off-by: Brandon Williams <bmwill@google.com>
Signed-off-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-06-23 15:36:53 -07:00
Brandon Williams
b2141fc1d2 config: don't include config.h by default
Stop including config.h by default in cache.h.  Instead only include
config.h in those files which require use of the config system.

Signed-off-by: Brandon Williams <bmwill@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-06-15 12:56:22 -07:00
Junio C Hamano
b9a7d55d93 Merge branch 'nd/fopen-errors'
We often try to open a file for reading whose existence is
optional, and silently ignore errors from open/fopen; report such
errors if they are not due to missing files.

* nd/fopen-errors:
  mingw_fopen: report ENOENT for invalid file names
  mingw: verify that paths are not mistaken for remote nicknames
  log: fix memory leak in open_next_file()
  rerere.c: move error_errno() closer to the source system call
  print errno when reporting a system call error
  wrapper.c: make warn_on_inaccessible() static
  wrapper.c: add and use fopen_or_warn()
  wrapper.c: add and use warn_on_fopen_errors()
  config.mak.uname: set FREAD_READS_DIRECTORIES for Darwin, too
  config.mak.uname: set FREAD_READS_DIRECTORIES for Linux and FreeBSD
  clone: use xfopen() instead of fopen()
  use xfopen() in more places
  git_fopen: fix a sparse 'not declared' warning
2017-06-13 13:47:09 -07:00
Junio C Hamano
35898eafab Merge branch 'tb/pull-ff-rebase-autostash'
"git pull --rebase --autostash" didn't auto-stash when the local history
fast-forwards to the upstream.

* tb/pull-ff-rebase-autostash:
  pull: ff --rebase --autostash works in dirty repo
2017-06-05 09:18:13 +09:00
Tyler Brazier
f15e7cf5cc pull: ff --rebase --autostash works in dirty repo
When `git pull --rebase --autostash` in a dirty repository resulted in a
fast-forward, nothing was being autostashed and the pull failed. This
was due to a shortcut to avoid running rebase when we can fast-forward,
but autostash is ignored on that codepath.

Now we will only take the shortcut if autostash is not in effect.
Based on a few tests against the git.git repo, the shortcut does not
seem to give us significant performance benefits, on Linux at least.
Regardless, it is more important to be correct than to be fast.

Signed-off-by: Tyler Brazier <tyler@tylerbrazier.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-06-01 14:09:39 +09:00
Nguyễn Thái Ngọc Duy
23a9e0712d use xfopen() in more places
xfopen()

 - provides error details
 - explains error on reading, or writing, or whatever operation
 - has l10n support
 - prints file name in the error

Some of these are missing in the places that are replaced with xfopen(),
which is a clear win. In some other places, it's just less code (not as
clearly a win as the previous case but still is).

The only slight regresssion is in remote-testsvn, where we don't report
the file class (marks files) in the error messages anymore. But since
this is a _test_ svn remote transport, I'm not too concerned.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-05-26 12:33:55 +09:00
brian m. carlson
f06e90dac1 merge: convert checkout_fast_forward to struct object_id
Converting checkout_fast_forward is required to convert
parse_tree_indirect.

Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-05-08 15:12:58 +09:00
brian m. carlson
bc83266abe Convert lookup_commit* to struct object_id
Convert lookup_commit, lookup_commit_or_die,
lookup_commit_reference, and lookup_commit_reference_gently to take
struct object_id arguments.

Introduce a temporary in parse_object buffer in order to convert this
function.  This is required since in order to convert parse_object and
parse_object_buffer, lookup_commit_reference_gently and
lookup_commit_or_die would need to be converted.  Not introducing a
temporary would therefore require that lookup_commit_or_die take a
struct object_id *, but lookup_commit would take unsigned char *,
leaving a confusing and hard-to-use interface.

parse_object_buffer will lose this temporary in a later patch.

This commit was created with manual changes to commit.c, commit.h, and
object.c, plus the following semantic patch:

@@
expression E1, E2;
@@
- lookup_commit_reference_gently(E1.hash, E2)
+ lookup_commit_reference_gently(&E1, E2)

@@
expression E1, E2;
@@
- lookup_commit_reference_gently(E1->hash, E2)
+ lookup_commit_reference_gently(E1, E2)

@@
expression E1;
@@
- lookup_commit_reference(E1.hash)
+ lookup_commit_reference(&E1)

@@
expression E1;
@@
- lookup_commit_reference(E1->hash)
+ lookup_commit_reference(E1)

@@
expression E1;
@@
- lookup_commit(E1.hash)
+ lookup_commit(&E1)

@@
expression E1;
@@
- lookup_commit(E1->hash)
+ lookup_commit(E1)

@@
expression E1, E2;
@@
- lookup_commit_or_die(E1.hash, E2)
+ lookup_commit_or_die(&E1, E2)

@@
expression E1, E2;
@@
- lookup_commit_or_die(E1->hash, E2)
+ lookup_commit_or_die(E1, E2)

Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-05-08 15:12:57 +09:00
Junio C Hamano
b80f629f5b Merge branch 'jk/war-on-git-path'
While handy, "git_path()" is a dangerous function to use as a
callsite that uses it safely one day can be broken by changes
to other code that calls it.  Reduction of its use continues.

* jk/war-on-git-path:
  am: drop "dir" parameter from am_state_init
  replace strbuf_addstr(git_path()) with git_path_buf()
  replace xstrdup(git_path(...)) with git_pathdup(...)
  use git_path_* helper functions
  branch: add edit_description() helper
  bisect: add git_path_bisect_terms helper
2017-04-26 15:39:08 +09:00
Jeff King
ca03e0670c use git_path_* helper functions
Long ago we added functions like git_path_merge_msg() to
replace the more dangerous git_path("MERGE_MSG"). Over time
some new calls to the latter have crept it. Let's convert
them to use the safer form.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-04-20 21:03:51 -07:00
brian m. carlson
910650d2f8 Rename sha1_array to oid_array
Since this structure handles an array of object IDs, rename it to struct
oid_array.  Also rename the accessor functions and the initialization
constant.

This commit was produced mechanically by providing non-Documentation
files to the following Perl one-liners:

    perl -pi -E 's/struct sha1_array/struct oid_array/g'
    perl -pi -E 's/\bsha1_array_/oid_array_/g'
    perl -pi -E 's/SHA1_ARRAY_INIT/OID_ARRAY_INIT/g'

Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-03-31 08:33:56 -07:00
brian m. carlson
98a72ddc12 Make sha1_array_append take a struct object_id *
Convert the callers to pass struct object_id by changing the function
declaration and definition and applying the following semantic patch:

@@
expression E1, E2;
@@
- sha1_array_append(E1, E2.hash)
+ sha1_array_append(E1, &E2)

@@
expression E1, E2;
@@
- sha1_array_append(E1, E2->hash)
+ sha1_array_append(E1, E2)

Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-03-31 08:33:55 -07:00
brian m. carlson
ee3051bd23 sha1-array: convert internal storage for struct sha1_array to object_id
Make the internal storage for struct sha1_array use an array of struct
object_id internally.  Update the users of this struct which inspect its
internals.

Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-03-28 09:59:34 -07:00
brian m. carlson
f9b11147e0 builtin/pull: convert to struct object_id
Convert virtually all uses of unsigned char [20] to struct object_id.
Leave all the arguments that come from struct sha1_array, as these will
be converted in a later patch.

Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-03-28 09:59:34 -07:00
brian m. carlson
14bb40b3f0 builtin/pull: convert portions to struct object_id
Convert the caller of sha1_array_append to struct object_id.

Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-03-26 22:08:21 -07:00
Junio C Hamano
2fb11ec6c1 Merge branch 'jc/pull-rebase-ff'
"git pull --rebase", when there is no new commits on our side since
we forked from the upstream, should be able to fast-forward without
invoking "git rebase", but it didn't.

* jc/pull-rebase-ff:
  pull: fast-forward "pull --rebase=true"
2016-12-19 14:45:38 -08:00
Junio C Hamano
33b842a1e9 pull: fast-forward "pull --rebase=true"
"git pull --rebase" always runs "git rebase" after fetching the
commit to serve as the new base, even when the new base is a
descendant of the current HEAD, i.e. we haven't done any work.

In such a case, we can instead fast-forward to the new base without
invoking the rebase process.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-11-29 14:40:16 -08:00
Johannes Schindelin
d8cc92ab13 wt-status: teach has_{unstaged,uncommitted}_changes() about submodules
Sometimes we are *actually* interested in those changes... For
example when an interactive rebase wants to continue with a staged
submodule update.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-10-07 09:29:31 -07:00
Johannes Schindelin
fd84986f46 wt-status: make the require_clean_work_tree() function reusable
The function used by "git pull" to stop the user when the working
tree has changes is useful in other places.

Let's move it into a more prominent (and into an actually reusable)
spot: wt-status.[ch].

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-10-07 09:29:31 -07:00
Johannes Schindelin
ea63b393ec pull: make code more similar to the shell script again
When converting the pull command to a builtin, the
require_clean_work_tree() function was renamed and the pull-specific
parts hard-coded.

This makes it impossible to reuse the code, so let's modify the code to
make it more similar to the original shell script again.

Note: when the hint "Please commit or stash them" was introduced first,
Git did not have the convention of continuing error messages in lower
case, but now we do have that convention, therefore we reintroduce this
hint down-cased, obeying said convention.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-10-07 09:29:31 -07:00
Johannes Schindelin
338bc8d818 pull: drop confusing prefix parameter of die_on_unclean_work_tree()
In cmd_pull(), when verifying that there are no changes preventing a
rebasing pull, we diligently pass the prefix parameter to the
die_on_unclean_work_tree() function which in turn diligently passes it
to the has_unstaged_changes() and has_uncommitted_changes() functions.

The casual reader might now be curious (as this developer was) whether
that means that calling `git pull --rebase` in a subdirectory will
ignore unstaged changes in other parts of the working directory. And be
puzzled that `git pull --rebase` (correctly) complains about those
changes outside of the current directory.

The puzzle is easily resolved: while we take pains to pass around the
prefix and even pass it to init_revisions(), the fact that no paths are
passed to init_revisions() ensures that the prefix is simply ignored.

That, combined with the fact that we will *always* want a *full* working
directory check before running a rebasing pull, is reason enough to
simply do away with the actual prefix parameter and to pass NULL
instead, as if we were running this from the top-level working directory
anyway.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-10-07 09:29:27 -07:00
Junio C Hamano
2703572b3a Merge branch 'va/i18n-even-more'
More markings of messages for i18n, with updates to various tests
to pass GETTEXT_POISON tests.

One patch from the original submission dropped due to conflicts
with jk/upload-pack-hook, which is still in flux.

* va/i18n-even-more: (38 commits)
  t5541: become resilient to GETTEXT_POISON
  i18n: branch: mark comment when editing branch description for translation
  i18n: unmark die messages for translation
  i18n: submodule: escape shell variables inside eval_gettext
  i18n: submodule: join strings marked for translation
  i18n: init-db: join message pieces
  i18n: remote: allow translations to reorder message
  i18n: remote: mark URL fallback text for translation
  i18n: standardise messages
  i18n: sequencer: add period to error message
  i18n: merge: change command option help to lowercase
  i18n: merge: mark messages for translation
  i18n: notes: mark options for translation
  i18n: notes: mark strings for translation
  i18n: transport-helper.c: change N_() call to _()
  i18n: bisect: mark strings for translation
  t5523: use test_i18ngrep for negation
  t4153: fix negated test_i18ngrep call
  t9003: become resilient to GETTEXT_POISON
  tests: unpack-trees: update to use test_i18n* functions
  ...
2016-07-13 11:24:10 -07:00
Vasco Almeida
8785c42532 i18n: advice: internationalize message for conflicts
Mark message for translation telling the user she has conflicts to
resolve. Expose each particular use case, in order to enable translating
entire sentences which would facilitate translating into other
languages.

Change "Pull" to lowercase to match other instances. Update test
t5520-pull.sh, that relied on the old error message, to use the new one.

Although we loose in source code conciseness, we would gain better
translations because translators can 1) translate the entire sentence,
including those terms concerning Git (committing, merging, etc) 2) have
leeway to adapt to their languages.

Signed-off-by: Vasco Almeida <vascomalmeida@sapo.pt>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-06-17 15:45:48 -07:00
Alexander Hirsch
c57e501c51 pull: warn on --verify-signatures with --rebase
git-pull silently ignores the --verify-signatures option when
running --rebase, potentially leaving users in the belief that
the rebase operation would check for valid GPG signatures.

Implementing --verify-signatures for git-rebase was talked about,
but doubts for a valid workflow rose up.  Since you usually merge
other's branches into your branch you might have an interest that
their side has a valid GPG signature.

Rebasing, on the other hand, is to rebuild your branch on top of
other's work, in order to push the result back, and it is too late
to reject their work even if you find their commits lack acceptable
signature.

Let's warn users that the --verify-signatures option is ignored
during "pull --rebase"; users do not wonder what would happen if
their commits lack acceptable signature that way.

Signed-off-by: Alexander Hirsch <1zeeky@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-05-20 15:01:00 -07:00
Junio C Hamano
e5e7a9115d Merge branch 'va/i18n-misc-updates'
Mark several messages for translation.

* va/i18n-misc-updates:
  i18n: unpack-trees: avoid substituting only a verb in sentences
  i18n: builtin/pull.c: split strings marked for translation
  i18n: builtin/pull.c: mark placeholders for translation
  i18n: git-parse-remote.sh: mark strings for translation
  i18n: branch: move comment for translators
  i18n: branch: unmark string for translation
  i18n: builtin/rm.c: remove a comma ',' from string
  i18n: unpack-trees: mark strings for translation
  i18n: builtin/branch.c: mark option for translation
  i18n: index-pack: use plural string instead of normal one
2016-05-17 14:38:23 -07:00
Junio C Hamano
175008d454 Merge branch 'jc/merge-refuse-new-root'
"git pull" has been taught to pass --allow-unrelated-histories
option to underlying "git merge".

* jc/merge-refuse-new-root:
  pull: pass --allow-unrelated-histories to "git merge"
  t3033: avoid 'ambiguous refs' warning
2016-04-29 12:59:08 -07:00
Junio C Hamano
09c2cb877a pull: pass --allow-unrelated-histories to "git merge"
The previous commit said:

    We could add the same option to "git pull" and have it passed
    through to underlying "git merge".  I do not have a fundamental
    opposition against such a feature, but this commit does not do
    so and instead leaves it as low-hanging fruit for others,
    because such a "two project merge" would be done after fetching
    the other project into some location in the working tree of an
    existing project and making sure how well they fit together, it
    is sufficient to allow a local merge without such an option
    pass-through from "git pull" to "git merge".

Prepare a patch to make it a reality, just in case it is needed.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-04-21 11:58:51 -07:00
Vasco Almeida
daf9f6499f i18n: builtin/pull.c: split strings marked for translation
Split string "If you wish to set tracking information
for this branch you can do so with:\n" to match occurring string in
git-parse-remote.sh. In this case, the translator handles it only once.

On the other hand, the translations of the string that were already made
are mark as fuzzy and the translator needs to correct it herself.

Signed-off-by: Vasco Almeida <vascomalmeida@sapo.pt>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-04-19 12:07:49 -07:00
Vasco Almeida
8a0de58a2a i18n: builtin/pull.c: mark placeholders for translation
Some translations might also translate "<remote>" and "<branch>".

Signed-off-by: Vasco Almeida <vascomalmeida@sapo.pt>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-04-19 12:07:49 -07:00
Mehul Jain
f66398eb57 pull --rebase: add --[no-]autostash flag
If rebase.autoStash configuration variable is set, there is no way to
override it for "git pull --rebase" from the command line.

Teach "git pull --rebase" the --[no-]autostash command line flag which
overrides the current value of rebase.autoStash, if set. As "git rebase"
understands the --[no-]autostash option, it's just a matter of passing
the option to underlying "git rebase" when "git pull --rebase" is called.

Helped-by: Matthieu Moy <Matthieu.Moy@grenoble-inp.fr>
Helped-by: Junio C Hamano <gitster@pobox.com>
Helped-by: Paul Tan <pyokagan@gmail.com>
Helped-by: Eric Sunshine <sunshine@sunshineco.com>
Signed-off-by: Mehul Jain <mehul.jain2029@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-03-21 13:30:36 -07:00
Mehul Jain
c48d73bdec git-pull.c: introduce git_pull_config()
git-pull makes a seperate call to git_config_get_bool() to read the value
of "rebase.autostash". This can be reduced as a call to git_config() is
already there in the code.

Introduce a callback function git_pull_config() to read "rebase.autostash"
along with other variables.

Helped-by: Junio C Hamano <gitster@pobox.com>
Helped-by: Paul Tan <pyokagan@gmail.com>
Helped-by: Eric Sunshine <sunshine@sunshineco.com>
Signed-off-by: Mehul Jain <mehul.jain2029@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-03-21 13:23:44 -07:00
Junio C Hamano
b62624b51a Merge branch 'jc/strbuf-getline'
The preliminary clean-up for jc/peace-with-crlf topic.

* jc/strbuf-getline:
  strbuf: give strbuf_getline() to the "most text friendly" variant
  checkout-index: there are only two possible line terminations
  update-index: there are only two possible line terminations
  check-ignore: there are only two possible line terminations
  check-attr: there are only two possible line terminations
  mktree: there are only two possible line terminations
  strbuf: introduce strbuf_getline_{lf,nul}()
  strbuf: make strbuf_getline_crlf() global
  strbuf: miniscule style fix
2016-01-28 16:10:14 -08:00
Junio C Hamano
f9219c0b32 Merge branch 'js/pull-rebase-i'
"git pull --rebase" has been extended to allow invoking
"rebase -i".

* js/pull-rebase-i:
  completion: add missing branch.*.rebase values
  remote: handle the config setting branch.*.rebase=interactive
  pull: allow interactive rebase with --rebase=interactive
2016-01-26 15:40:28 -08:00
Junio C Hamano
8f309aeb82 strbuf: introduce strbuf_getline_{lf,nul}()
The strbuf_getline() interface allows a byte other than LF or NUL as
the line terminator, but this is only because I wrote these
codepaths anticipating that there might be a value other than NUL
and LF that could be useful when I introduced line_termination long
time ago.  No useful caller that uses other value has emerged.

By now, it is clear that the interface is overly broad without a
good reason.  Many codepaths have hardcoded preference to read
either LF terminated or NUL terminated records from their input, and
then call strbuf_getline() with LF or NUL as the third parameter.

This step introduces two thin wrappers around strbuf_getline(),
namely, strbuf_getline_lf() and strbuf_getline_nul(), and
mechanically rewrites these call sites to call either one of
them.  The changes contained in this patch are:

 * introduction of these two functions in strbuf.[ch]

 * mechanical conversion of all callers to strbuf_getline() with
   either '\n' or '\0' as the third parameter to instead call the
   respective thin wrapper.

After this step, output from "git grep 'strbuf_getline('" would
become a lot smaller.  An interim goal of this series is to make
this an empty set, so that we can have strbuf_getline_crlf() take
over the shorter name strbuf_getline().

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-01-15 10:12:51 -08:00
Johannes Schindelin
f5eb87b98d pull: allow interactive rebase with --rebase=interactive
A couple of years ago, I found the need to collaborate on topic
branches that were rebased all the time, and I really needed to see
what I was rebasing when pulling, so I introduced an
interactively-rebasing pull.

The way builtin pull works, this change also supports the value
'interactive' for the 'branch.<name>.rebase' config variable, which
is a neat thing because users can now configure given branches for
interactively-rebasing pulls without having to type out the complete
`--rebase=interactive` option every time they pull.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-01-13 12:59:15 -08:00
Stefan Beller
62104ba14a submodules: allow parallel fetching, add tests and documentation
This enables the work of the previous patches.

Signed-off-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-12-16 12:06:08 -08:00
brian m. carlson
ed1c9977cb Remove get_object_hash.
Convert all instances of get_object_hash to use an appropriate reference
to the hash member of the oid member of struct object.  This provides no
functional change, as it is essentially a macro substitution.

Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
Signed-off-by: Jeff King <peff@peff.net>
2015-11-20 08:02:05 -05:00
brian m. carlson
f2fd0760f6 Convert struct object to object_id
struct object is one of the major data structures dealing with object
IDs.  Convert it to use struct object_id instead of an unsigned char
array.  Convert get_object_hash to refer to the new member as well.

Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
Signed-off-by: Jeff King <peff@peff.net>
2015-11-20 08:02:05 -05:00
Junio C Hamano
c7997e54a5 Merge branch 'pt/pull-builtin' into maint
* pt/pull-builtin:
  pull: enclose <options> in brackets in the usage string
  merge: grammofix in please-commit-before-merge message
2015-10-16 14:32:32 -07:00
Alex Henrie
e7a7401f8b pull: enclose <options> in brackets in the usage string
All the other placeholders are already shown that way.

Signed-off-by: Alex Henrie <alexhenrie24@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-10-16 09:38:32 -07:00
Ralf Thielow
7306b39f5a pull: don't mark values for option "rebase" for translation
"false|true|preserve" are actual values for option "rebase"
of the "git-pull" command and should therefore not be marked
for translation.

Signed-off-by: Ralf Thielow <ralf.thielow@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-09-11 09:50:00 -07:00
Junio C Hamano
db86e61cbb Merge branch 'mh/tempfile'
The "lockfile" API has been rebuilt on top of a new "tempfile" API.

* mh/tempfile:
  credential-cache--daemon: use tempfile module
  credential-cache--daemon: delete socket from main()
  gc: use tempfile module to handle gc.pid file
  lock_repo_for_gc(): compute the path to "gc.pid" only once
  diff: use tempfile module
  setup_temporary_shallow(): use tempfile module
  write_shared_index(): use tempfile module
  register_tempfile(): new function to handle an existing temporary file
  tempfile: add several functions for creating temporary files
  prepare_tempfile_object(): new function, extracted from create_tempfile()
  tempfile: a new module for handling temporary files
  commit_lock_file(): use get_locked_file_path()
  lockfile: add accessor get_lock_file_path()
  lockfile: add accessors get_lock_file_fd() and get_lock_file_fp()
  create_bundle(): duplicate file descriptor to avoid closing it twice
  lockfile: move documentation to lockfile.h and lockfile.c
2015-08-25 14:57:09 -07:00
Kevin Daudt
53c76dc05e pull: allow dirty tree when rebase.autostash enabled
rebase learned to stash changes when it encounters a dirty work tree,
but git pull --rebase does not.

Only verify if the working tree is dirty when rebase.autostash is not
enabled.

Signed-off-by: Kevin Daudt <me@ikke.info>
Signed-off-by: Paul Tan <pyokagan@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-07-22 12:56:30 -07:00
Paul Tan
b1456605c2 pull: remove redirection to git-pull.sh
At the beginning of the rewrite of git-pull.sh to C, we introduced a
redirection to git-pull.sh if the environment variable
_GIT_USE_BUILTIN_PULL was not defined in order to not break test scripts
that relied on a functional git-pull.

Now that all of git-pull's functionality has been re-implemented in
builtin/pull.c, remove this redirection, and retire the old git-pull.sh
into contrib/examples/.

Signed-off-by: Paul Tan <pyokagan@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-06-18 13:18:59 -07:00
Paul Tan
b7b314711a pull --rebase: error on no merge candidate cases
Tweak the error messages printed by die_no_merge_candidates() to take
into account that we may be "rebasing against" rather than "merging
with".

Signed-off-by: Paul Tan <pyokagan@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-06-18 13:18:52 -07:00
Paul Tan
8944969c20 pull --rebase: exit early when the working directory is dirty
Re-implement the behavior introduced by f9189cf (pull --rebase: exit
early when the working directory is dirty, 2008-05-21).

Signed-off-by: Paul Tan <pyokagan@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-06-18 13:18:43 -07:00
Paul Tan
81dbd768db pull: configure --rebase via branch.<name>.rebase or pull.rebase
Since cd67e4d (Teach 'git pull' about --rebase, 2007-11-28),
fetch+rebase could be set by default by defining the config variable
branch.<name>.rebase. This setting can be overriden on the command line
by --rebase and --no-rebase.

Since 6b37dff (pull: introduce a pull.rebase option to enable --rebase,
2011-11-06), git-pull --rebase can also be configured via the
pull.rebase configuration option.

Re-implement support for these two configuration settings by introducing
config_get_rebase() which is called before parse_options() to set the
default value of opt_rebase.

Helped-by: Stefan Beller <sbeller@google.com>
Helped-by: Duy Nguyen <pclouds@gmail.com>
Signed-off-by: Paul Tan <pyokagan@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-06-18 13:17:53 -07:00
Paul Tan
1678b81ecc pull: teach git pull about --rebase
Since cd67e4d (Teach 'git pull' about --rebase, 2007-11-28), if the
--rebase option is set, git-rebase is run instead of git-merge.

Re-implement this by introducing run_rebase(), which is called instead
of run_merge() if opt_rebase is a true value.

Since c85c792 (pull --rebase: be cleverer with rebased upstream
branches, 2008-01-26), git-pull handles the case where the upstream
branch was rebased since it was last fetched. The fork point (old remote
ref) of the branch from the upstream branch is calculated before fetch,
and then rebased from onto the new remote head (merge_head) after fetch.

Re-implement this by introducing get_merge_branch_2() and
get_merge_branch_1() to find the upstream branch for the
specified/current branch, and get_rebase_fork_point() which will find
the fork point between the upstream branch and current branch.

However, the above change created a problem where git-rebase cannot
detect commits that are already upstream, and thus may result in
unnecessary conflicts. cf65426 (pull --rebase: Avoid spurious conflicts
and reapplying unnecessary patches, 2010-08-12) fixes this by ignoring
the above old remote ref if it is contained within the merge base of the
merge head and the current branch.

This is re-implemented in run_rebase() where fork_point is not used if
it is the merge base returned by get_octopus_merge_base().

Helped-by: Stefan Beller <sbeller@google.com>
Helped-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Paul Tan <pyokagan@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-06-18 13:17:46 -07:00
Paul Tan
41fca0989e pull: set reflog message
f947413 (Use GIT_REFLOG_ACTION environment variable instead.,
2006-12-28) established git-pull's method for setting the reflog
message, which is to set the environment variable GIT_REFLOG_ACTION to
the evaluation of "pull${1+ $*}" if it has not already been set.

Re-implement this behavior.

Helped-by: Junio C Hamano <gitster@pobox.com>
Signed-off-by: Paul Tan <pyokagan@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-06-18 13:17:39 -07:00
Paul Tan
49ec402d52 pull: implement pulling into an unborn branch
b4dc085 (pull: merge into unborn by fast-forwarding from empty
tree, 2013-06-20) established git-pull's current behavior of pulling
into an unborn branch by fast-forwarding the work tree from an empty
tree to the merge head, then setting HEAD to the merge head.

Re-implement this behavior by introducing pull_into_void() which will be
called instead of run_merge() if HEAD is invalid.

Helped-by: Stephen Robin <stephen.robin@gmail.com>
Signed-off-by: Paul Tan <pyokagan@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-06-18 13:17:32 -07:00
Paul Tan
fe911b8ca0 pull: fast-forward working tree if head is updated
Since b10ac50 (Fix pulling into the same branch., 2005-08-25), git-pull,
upon detecting that git-fetch updated the current head, will
fast-forward the working tree to the updated head commit.

Re-implement this behavior.

Signed-off-by: Paul Tan <pyokagan@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-06-18 13:17:24 -07:00
Paul Tan
4a4cf9e821 pull: check if in unresolved merge state
Since d38a30d (Be more user-friendly when refusing to do something
because of conflict., 2010-01-12), git-pull will error out with
user-friendly advices if the user is in the middle of a merge or has
unmerged files.

Re-implement this behavior. While the "has unmerged files" case can be
handled by die_resolve_conflict(), we introduce a new function
die_conclude_merge() for printing a different error message for when
there are no unmerged files but the merge has not been finished.

Signed-off-by: Paul Tan <pyokagan@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-06-18 13:17:16 -07:00
Paul Tan
a9de989754 pull: support pull.ff config
Since b814da8 (pull: add pull.ff configuration, 2014-01-15), git-pull.sh
would lookup the configuration value of "pull.ff", and set the flag
"--ff" if its value is "true", "--no-ff" if its value is "false" and
"--ff-only" if its value is "only".

Re-implement this behavior.

Signed-off-by: Paul Tan <pyokagan@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-06-18 13:17:09 -07:00
Paul Tan
44c175c7a4 pull: error on no merge candidates
Commit a8c9bef (pull: improve advice for unconfigured error case,
2009-10-05) fully established the current advices given by git-pull for
the different cases where git-fetch will not have anything marked for
merge:

1. We fetched from a specific remote, and a refspec was given, but it
   ended up not fetching anything. This is usually because the user
   provided a wildcard refspec which had no matches on the remote end.

2. We fetched from a non-default remote, but didn't specify a branch to
   merge. We can't use the configured one because it applies to the
   default remote, and thus the user must specify the branches to merge.

3. We fetched from the branch's or repo's default remote, but:

   a. We are not on a branch, so there will never be a configured branch
      to merge with.

   b. We are on a branch, but there is no configured branch to merge
      with.

4. We fetched from the branch's or repo's default remote, but the
   configured branch to merge didn't get fetched (either it doesn't
   exist, or wasn't part of the configured fetch refspec)

Re-implement the above behavior by implementing get_merge_heads() to
parse the heads in FETCH_HEAD for merging, and implementing
die_no_merge_candidates(), which will be called when FETCH_HEAD has no
heads for merging.

Helped-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Helped-by: Junio C Hamano <gitster@pobox.com>
Signed-off-by: Paul Tan <pyokagan@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-06-18 13:16:31 -07:00
Paul Tan
a32975f516 pull: pass git-fetch's options to git-fetch
Since eb2a8d9 (pull: handle git-fetch's options as well, 2015-06-02),
git-pull knows about and handles git-fetch's options, passing them to
git-fetch. Re-implement this behavior.

Since 29609e6 (pull: do nothing on --dry-run, 2010-05-25) git-pull
supported the --dry-run option, exiting after git-fetch if --dry-run is
set. Re-implement this behavior.

Signed-off-by: Ramsay Jones <ramsay@ramsay1.demon.co.uk>
Signed-off-by: Paul Tan <pyokagan@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-06-18 13:16:08 -07:00
Paul Tan
11b6d17801 pull: pass git-merge's options to git-merge
Specify git-merge's options in the option list, and pass any specified
options to git-merge.

These options are:

* -n, --stat, --summary: since d8abe14 (merge, pull: introduce
  '--(no-)stat' option, 2008-04-06)

* --log: since efb779f (merge, pull: add '--(no-)log' command line
  option, 2008-04-06)

* --squash: since 7d0c688 (git-merge --squash, 2006-06-23)

* --commit: since 5072a32 (Teach git-pull about --[no-]ff, --no-squash
  and --commit, 2007-10-29)

* --edit: since 8580830 ("git pull" doesn't know "--edit", 2012-02-11)

* --ff, --ff-only: since 5072a32 (Teach git-pull about --[no-]ff,
  --no-squash and --commit, 2007-10-29)

* --verify-signatures: since efed002 (merge/pull: verify GPG signatures
  of commits being merged, 2013-03-31)

* -s, --strategy: since 60fb5b2 (Use git-merge in git-pull (second
  try)., 2005-09-25)

* -X, --strategy-option: since ee2c795 (Teach git-pull to pass
  -X<option> to git-merge, 2009-11-25)

* -S, --gpg-sign: since ea230d8 (pull: add the --gpg-sign option.,
  2014-02-10)

Signed-off-by: Paul Tan <pyokagan@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-06-15 12:40:50 -07:00
Paul Tan
2a747902c3 pull: pass verbosity, --progress flags to fetch and merge
7f87aff (Teach/Fix pull/fetch -q/-v options, 2008-11-15) taught git-pull
to accept the verbosity -v and -q options and pass them to git-fetch and
git-merge.

Re-implement support for the verbosity flags by adding it to the options
list and introducing argv_push_verbosity() to push the flags into the
argv array used to execute git-fetch and git-merge.

9839018 (fetch and pull: learn --progress, 2010-02-24) and bebd2fd
(pull: propagate --progress to merge, 2011-02-20) taught git-pull to
accept the --progress option and pass it to git-fetch and git-merge.

Use OPT_PASSTHRU() implemented earlier to pass the "--[no-]progress"
command line options to git-fetch and git-merge.

Helped-by: Junio C Hamano <gitster@pobox.com>
Signed-off-by: Paul Tan <pyokagan@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-06-15 12:40:50 -07:00
Paul Tan
f2c5baa14e pull: implement fetch + merge
Implement the fetch + merge functionality of git-pull, by first running
git-fetch with the repo and refspecs provided on the command line, then
running git-merge on FETCH_HEAD to merge the fetched refs into the
current branch.

Helped-by: Junio C Hamano <gitster@pobox.com>
Signed-off-by: Paul Tan <pyokagan@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-06-15 12:40:50 -07:00
Paul Tan
1e1ea69fa4 pull: implement skeletal builtin pull
For the purpose of rewriting git-pull.sh into a C builtin, implement a
skeletal builtin/pull.c that redirects to $GIT_EXEC_PATH/git-pull.sh if
the environment variable _GIT_USE_BUILTIN_PULL is not defined. This
allows us to fall back on the functional git-pull.sh when running the
test suite for tests that depend on a working git-pull implementation.

This redirection should be removed when all the features of git-pull.sh
have been re-implemented in builtin/pull.c.

Helped-by: Junio C Hamano <gitster@pobox.com>
Signed-off-by: Paul Tan <pyokagan@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-06-15 12:40:50 -07:00