Commit graph

11324 commits

Author SHA1 Message Date
Junio C Hamano
06994ae065 Merge branch 'ds/commit-graph'
Docfix.

* ds/commit-graph:
  commit-graph: fix documentation inconsistencies
2018-07-18 12:20:34 -07:00
Junio C Hamano
3c5b6ee92e Merge branch 'tz/exclude-doc-smallfixes'
Doc updates.

* tz/exclude-doc-smallfixes:
  dir.c: fix typos in core.excludesfile comment
  gitignore.txt: clarify default core.excludesfile path
2018-07-18 12:20:34 -07:00
Junio C Hamano
2f826b060c Merge branch 'js/rebase-recreate-merge'
Docfix.

* js/rebase-recreate-merge:
  rebase: fix documentation formatting
2018-07-18 12:20:33 -07:00
Junio C Hamano
d18602f412 Merge branch 'jk/branch-l-0-deprecation'
The "-l" option in "git branch -l" is an unfortunate short-hand for
"--create-reflog", but many users, both old and new, somehow expect
it to be something else, perhaps "--list".  This step warns when "-l"
is used as a short-hand for "--create-reflog" and warns about the
future repurposing of the it when it is used.

* jk/branch-l-0-deprecation:
  branch: deprecate "-l" option
  t: switch "branch -l" to "branch --create-reflog"
  t3200: unset core.logallrefupdates when testing reflog creation
2018-07-18 12:20:31 -07:00
Junio C Hamano
d036d667b7 Merge branch 'tb/grep-column'
"git grep" learned the "--column" option that gives not just the
line number but the column number of the hit.

* tb/grep-column:
  contrib/git-jump/git-jump: jump to exact location
  grep.c: add configuration variables to show matched option
  builtin/grep.c: add '--column' option to 'git-grep(1)'
  grep.c: display column number of first match
  grep.[ch]: extend grep_opt to allow showing matched column
  grep.c: expose {,inverted} match column in match_line()
  Documentation/config.txt: camel-case lineNumber for consistency
2018-07-18 12:20:31 -07:00
Junio C Hamano
eb9056358c Merge branch 'vs/typofixes'
Doc fix.

* vs/typofixes:
  Documentation: spelling and grammar fixes
2018-07-18 12:20:31 -07:00
Junio C Hamano
5e6140e76f Merge branch 'bw/protocol-v2'
Doc fix.

* bw/protocol-v2:
  protocol-v2 doc: put HTTP headers after request
2018-07-18 12:20:30 -07:00
Junio C Hamano
a4d4427bc6 Merge branch 'bw/config-refer-to-gitsubmodules-doc'
Docfix.

* bw/config-refer-to-gitsubmodules-doc:
  docs: link to gitsubmodules
2018-07-18 12:20:30 -07:00
Andrei Rybak
dd61cc1c2e Documentation: fix --color option formatting
Add missing colon in two places to fix formatting of options.

Signed-off-by: Andrei Rybak <rybak.a.v@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-07-18 11:24:05 -07:00
Henning Schild
1e7adb9756 gpg-interface: introduce new signature format "x509" using gpgsm
This commit allows git to create and check x509 type signatures using
gpgsm.

Signed-off-by: Henning Schild <henning.schild@siemens.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-07-18 10:02:23 -07:00
Henning Schild
b02f51b196 gpg-interface: introduce new config to select per gpg format program
Supporting multiple signing formats we will have the need to configure a
custom program each. Add a new config value to cater for that.

Signed-off-by: Henning Schild <henning.schild@siemens.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-07-18 10:02:21 -07:00
Henning Schild
57a8dd75df gpg-interface: add new config to select how to sign a commit
Add "gpg.format" where the user can specify which type of signature to
use for commits. At the moment only "openpgp" is supported and the value is
not even used. This commit prepares for a new types of signatures.

Signed-off-by: Henning Schild <henning.schild@siemens.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-07-17 12:14:11 -07:00
Stefan Beller
b3095712f9 diff.c: decouple white space treatment from move detection algorithm
In the original implementation of the move detection logic the choice for
ignoring white space changes is the same for the move detection as it is
for the regular diff.  Some cases came up where different treatment would
have been nice.

Allow the user to specify that white space should be ignored differently
during detection of moved lines than during generation of added and removed
lines. This is done by providing analogs to the --ignore-space-at-eol,
-b, and -w options by introducing the option --color-moved-ws=<modes>
with the modes named "ignore-space-at-eol", "ignore-space-change" and
"ignore-all-space", which is used only during the move detection phase.

As we change the default, we'll adjust the tests.

For now we do not infer any options to treat white spaces in the move
detection from the generic white space options given to diff.
This can be tuned later to reasonable default.

As we plan on adding more white space related options in a later patch,
that interferes with the current white space options, use a flag field
and clamp it down to  XDF_WHITESPACE_FLAGS, as that (a) allows to easily
check at parse time if we give invalid combinations and (b) can reuse
parts of this patch.

By having the white space treatment in its own option, we'll also
make it easier for a later patch to have an config option for
spaces in the move detection.

Signed-off-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-07-17 11:25:31 -07:00
Stefan Beller
51da15eb23 diff.c: add a blocks mode for moved code detection
The new "blocks" mode provides a middle ground between plain and zebra.
It is as intuitive (few colors) as plain, but still has the requirement
for a minimum of lines/characters to count a block as moved.

Suggested-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
 (https://public-inbox.org/git/87o9j0uljo.fsf@evledraar.gmail.com/)
Signed-off-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-07-17 11:25:31 -07:00
Jonathan Tan
42cc7485a2 negotiator/skipping: skip commits during fetch
Introduce a new negotiation algorithm used during fetch that skips
commits in an effort to find common ancestors faster. The skips grow
similarly to the Fibonacci sequence as the commit walk proceeds further
away from the tips. The skips may cause unnecessary commits to be
included in the packfile, but the negotiation step typically ends more
quickly.

Usage of this algorithm is guarded behind the configuration flag
fetch.negotiationAlgorithm.

Signed-off-by: Jonathan Tan <jonathantanmy@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-07-16 14:51:12 -07:00
William Chargin
6b3351e799 sha1-name.c: for ":/", find detached HEAD commits
This patch broadens the set of commits matched by ":/<pattern>" to
include commits reachable from HEAD but not any named ref. This avoids
surprising behavior when working with a detached HEAD and trying to
refer to a commit that was recently created and only exists within the
detached state.

If multiple worktrees exist, only the current worktree's HEAD is
considered reachable. This is consistent with the existing behavior for
other per-worktree refs: e.g., bisect refs are considered reachable, but
only within the relevant worktree.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: William Chargin <wchargin@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-07-12 12:07:25 -07:00
Johannes Schindelin
caafecfcf1 rebase --rebase-merges: adjust man page for octopus support
Now that we support octopus merges in the `--rebase-merges` mode,
we should give users who actually read the manuals a chance to know
about this fact.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-07-11 14:52:33 -07:00
Johannes Schindelin
920f22e6bc merge: allow reading the merge commit message from a file
This is consistent with `git commit` which, like `git merge`, supports
passing the commit message via `-m <msg>` and, unlike `git merge` before
this patch, via `-F <file>`.

It is useful to allow this for scripted use, or for the upcoming patch
to allow (re-)creating octopus merges in `git rebase --rebase-merges`.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-07-11 14:47:05 -07:00
Elijah Newren
55f39cf755 merge: fix misleading pre-merge check documentation
builtin/merge.c contains this important requirement for merge strategies:

    ...the index must be in sync with the head commit.  The strategies are
    responsible to ensure this.

However, Documentation/git-merge.txt says:

    ...[merge will] abort if there are any changes registered in the index
    relative to the `HEAD` commit.  (One exception is when the changed
    index entries are in the state that would result from the merge
    already.)

Interestingly, prior to commit c0be8aa06b ("Documentation/git-merge.txt:
Partial rewrite of How Merge Works", 2008-07-19),
Documentation/git-merge.txt said much more:

    ...the index file must match the tree of `HEAD` commit...
    [NOTE]
    This is a bit of a lie.  In certain special cases [explained
    in detail]...
    Otherwise, merge will refuse to do any harm to your repository
    (that is...your working tree...and index are left intact).

So, this suggests that the exceptions existed because there were special
cases where it would case no harm, and potentially be slightly more
convenient for the user.  While the current text in git-merge.txt does
list a condition under which it would be safe to proceed despite the index
not matching HEAD, it does not match what is actually implemented, in
three different ways:

    * The exception is written to describe what unpack-trees allows.  Not
      all merge strategies allow such an exception, though, making this
      description misleading.  'ours' and 'octopus' merges have strictly
      enforced index==HEAD for a while, and the commit previous to this
      one made 'recursive' do so as well.

    * If someone did a three-way content merge on a specific file using
      versions from the relevant commits and staged it prior to running
      merge, then that path would technically satisfy the exception listed
      in git-merge.txt.  unpack-trees.c would still error out on the path,
      though, because it defers the three-way content merge logic to other
      parts of the code (resolve, octopus, or recursive) and has no way of
      checking whether the index entry from before the merge will match
      the end result of the merge.

    * The exception as implemented in unpack-trees actually only checked
      that the index matched the MERGE_HEAD version of the file and that
      HEAD matched the merge base.  Assuming no renames, that would indeed
      provide cases where the index matches the end result we'd get from a
      merge.  But renames means unpack-trees is checking that it instead
      matches something other than what the final result will be, risking
      either erroring out when we shouldn't need to, or not erroring out
      when we should and overwriting the user's staged changes.

In addition to the wording behind this exception being misleading, it is
also somewhat surprising to see how many times the code for the special
cases were wrong or the check to make sure the index matched head was
forgotten altogether:

* Prior to commit ee6566e8d7 ("[PATCH] Rewrite read-tree", 2005-09-05),
  there were many cases where an unclean index entry was allowed (look for
  merged_entry_allow_dirty()); it appears that in those cases, the merge
  would have simply overwritten staged changes with the result of the
  merge.  Thus, the merge result would have been correct, but the user's
  uncommitted changes could be thrown away without warning.

* Prior to commit 160252f816 ("git-merge-ours: make sure our index
  matches HEAD", 2005-11-03), the 'ours' merge strategy did not check
  whether the index matched HEAD.  If it didn't, the resulting merge
  would include all the staged changes, and thus wasn't really an 'ours'
  strategy.

* Prior to commit 3ec62ad9ff ("merge-octopus: abort if index does not
  match HEAD", 2016-04-09), 'octopus' merges did not check whether the
  index matched HEAD, also resulting in any staged changes from before
  the commit silently being folded into the resulting merge.  commit
  a6ee883b8e ("t6044: new merge testcases for when index doesn't match
  HEAD", 2016-04-09) was also added at the same time to try to test to
  make sure all strategies did the necessary checking for the requirement
  that the index match HEAD.  Sadly, it didn't catch all the cases, as
  evidenced by the remainder of this list...

* Prior to commit 65170c07d4 ("merge-recursive: avoid incorporating
  uncommitted changes in a merge", 2017-12-21), merge-recursive simply
  relied on unpack_trees() to do the necessary check, but in one special
  case it avoided calling unpack_trees() entirely and accidentally ended
  up silently including any staged changes from before the merge in the
  resulting merge commit.

* The commit immediately before this one in this series noted that the
  exceptions were written in a way that assumed no renames, making it
  unsafe for merge-recursive to use.  merge-recursive was modified to
  use its own check to enforce that index==HEAD.

This history makes it very tempting to go into builtin/merge.c and replace
the comment that strategies must enforce that index matches HEAD with code
that just enforces it.  At this point, that would only affect the
'resolve' strategy; all other strategies have each been modified to
manually enforce it.  (However, note that index==HEAD is not strictly
enforced for fast-forward merges, as those are not considered a merge
strategy and they trigger in builtin/merge.c before the section in the
code where the relevant comment is found.)

But, even if we don't take the step of just fixing these problems by
enforcing index==HEAD for all strategies, we at least need to update this
misleading documentation in git-merge.txt.  For now, just modify the claim
in Documentation/git-merge.txt to fix the error.  The precise details
around combination of merges strategies and special cases probably is not
relevant to most users, so simply state that exceptions may exist but are
narrow and vary depending upon which merge strategy is in use.

Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-07-11 09:38:36 -07:00
Taylor Blau
9d8db06eb4 grep.c: teach 'git grep --only-matching'
Teach 'git grep --only-matching', a new option to only print the
matching part(s) of a line.

For instance, a line containing the following (taken from README.md:27):

  (`man gitcvs-migration` or `git help cvs-migration` if git is

Is printed as follows:

  $ git grep --line-number --column --only-matching -e git -- \
    README.md | grep ":27"
  README.md:27:7:git
  README.md:27:16:git
  README.md:27:38:git

The patch works mostly as one would expect, with the exception of a few
considerations that are worth mentioning here.

Like GNU grep, this patch ignores --only-matching when --invert (-v) is
given. There is a sensible answer here, but parity with the behavior of
other tools is preferred.

Because a line might contain more than one match, there are special
considerations pertaining to when to print line headers, newlines, and
how to increment the match column offset. The line header and newlines
are handled as a special case within the main loop to avoid polluting
the surrounding code with conditionals that have large blocks.

Signed-off-by: Taylor Blau <me@ttaylorr.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-07-09 14:15:28 -07:00
Jonathan Tan
a0c9016abd upload-pack: send refs' objects despite "filter"
A filter line in a request to upload-pack filters out objects regardless
of whether they are directly referenced by a "want" line or not. This
means that cloning with "--filter=blob:none" (or another filter that
excludes blobs) from a repository with at least one ref pointing to a
blob (for example, the Git repository itself) results in output like the
following:

    error: missing object referenced by 'refs/tags/junio-gpg-pub'

and if that particular blob is not referenced by a fetched tree, the
resulting clone fails fsck because there is no object from the remote to
vouch that the missing object is a promisor object.

Update both the protocol and the upload-pack implementation to include
all explicitly specified "want" objects in the packfile regardless of
the filter specification.

Signed-off-by: Jonathan Tan <jonathantanmy@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-07-09 12:37:38 -07:00
brian m. carlson
fa29f36d99 docs: correct RFC specifying email line length
The git send-email documentation specifies RFC 2821 (the SMTP RFC) as
providing line length limits, but the specification that restricts line
length to 998 octets is RFC 2822 (the email message format RFC).  Since
RFC 2822 has been obsoleted by RFC 5322, update the text to refer to RFC
5322 instead of RFC 2821.

Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-07-09 10:55:12 -07:00
brian m. carlson
e67a228cd8 send-email: automatically determine transfer-encoding
git send-email, when invoked without a --transfer-encoding option, sends
8bit data without a MIME version or a transfer encoding.  This has
several downsides.

First, unless the transfer encoding is specified, it defaults to 7bit,
meaning that non-ASCII data isn't allowed.  Second, if lines longer than
998 bytes are used, we will send an message that is invalid according to
RFC 5322.  The --validate option, which is the default, catches this
issue, but it isn't clear to many people how to resolve this.

To solve these issues, default the transfer encoding to "auto", so that
we explicitly specify 8bit encoding when lines don't exceed 998 bytes
and quoted-printable otherwise.  This means that we now always emit
Content-Transfer-Encoding and MIME-Version headers, so remove the
conditionals from this portion of the code.

It is unlikely that the unconditional inclusion of these two headers
will affect the deliverability of messages in anything but a positive
way, since MIME is already widespread and well understood by most email
programs.

Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-07-09 10:55:12 -07:00
brian m. carlson
f2d06fb13f send-email: accept long lines with suitable transfer encoding
With --validate (which is the default), we warn about lines exceeding
998 characters due to the limits specified in RFC 5322.  However, if
we're using a suitable transfer encoding (quoted-printable or base64),
we're guaranteed not to have lines exceeding 76 characters, so there's
no need to fail in this case.  The auto transfer encoding handles this
specific case, so accept it as well.

Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-07-09 10:55:12 -07:00
brian m. carlson
7a36987fff send-email: add an auto option for transfer encoding
For most patches, using a transfer encoding of 8bit provides good
compatibility with most servers and makes it as easy as possible to view
patches.  However, there are some patches for which 8bit is not a valid
encoding: RFC 5322 specifies that a message must not have lines
exceeding 998 octets.

Add a transfer encoding value, auto, which indicates that a patch should
use 8bit where allowed and quoted-printable otherwise.  Choose
quoted-printable instead of base64, since base64-encoded plain text is
treated as suspicious by some spam filters.

Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-07-09 10:55:12 -07:00
Jonathan Tan
3390e42adb fetch-pack: support negotiation tip whitelist
During negotiation, fetch-pack eventually reports as "have" lines all
commits reachable from all refs. Allow the user to restrict the commits
sent in this way by providing a whitelist of tips; only the tips
themselves and their ancestors will be sent.

Both globs and single objects are supported.

This feature is only supported for protocols that support connect or
stateless-connect (such as HTTP with protocol v2).

This will speed up negotiation when the repository has multiple
relatively independent branches (for example, when a repository
interacts with multiple repositories, such as with linux-next [1] and
torvalds/linux [2]), and the user knows which local branch is likely to
have commits in common with the upstream branch they are fetching.

[1] https://kernel.googlesource.com/pub/scm/linux/kernel/git/next/linux-next/
[2] https://kernel.googlesource.com/pub/scm/linux/kernel/git/torvalds/linux/

Signed-off-by: Jonathan Tan <jonathantanmy@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-07-03 15:00:41 -07:00
Junio C Hamano
e3331758f1 Second batch for 2.19 cycle
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-06-28 12:55:47 -07:00
Marc Strapetz
48294b512a Documentation: declare "core.ignoreCase" as internal variable
The current description of "core.ignoreCase" reads like an option which
is intended to be changed by the user while it's actually expected to
be set by Git on initialization only. Subsequently, Git relies on the
proper configuration of this variable, as noted by Bryan Turner [1]:

    Git on a case-insensitive filesystem (APFS, HFS+, FAT32, exFAT,
    vFAT, NTFS, etc.) is not designed to be run with anything other
    than core.ignoreCase=true.

[1] https://marc.info/?l=git&m=152998665813997&w=2
    mid:CAGyf7-GeE8jRGPkME9rHKPtHEQ6P1+ebpMMWAtMh01uO3bfy8w@mail.gmail.com

Signed-off-by: Marc Strapetz <marc.strapetz@syntevo.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-06-28 09:46:47 -07:00
Derrick Stolee
a9aa3c0927 commit-graph: fix documentation inconsistencies
The commit-graph feature shipped in Git 2.18 has some inconsistencies in
the constants used by the implementation and specified by the format
document.

The commit data chunk uses the key "CDAT" in the file format, but was
previously documented to say "CGET".

The commit data chunk stores commit parents using two 32-bit fields that
typically store the integer position of the parent in the list of commit
ids within the commit-graph file. When a parent does not exist, we had
documented the value 0xffffffff, but implemented the value 0x70000000.
This swap is easy to correct in the documentation, but unfortunately
reduces the number of commits that we can store in the commit-graph.
Update that estimate, too.

Reported-by: Grant Welch <gwelch925@gmail.com>
Signed-off-by: Derrick Stolee <dstolee@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-06-28 09:45:03 -07:00
Brandon Williams
516e2b76bd upload-pack: implement ref-in-want
Currently, while performing packfile negotiation, clients are only
allowed to specify their desired objects using object ids.  This causes
a vulnerability to failure when an object turns non-existent during
negotiation, which may happen if, for example, the desired repository is
provided by multiple Git servers in a load-balancing arrangement and
there exists replication delay.

In order to eliminate this vulnerability, implement the ref-in-want
feature for the 'fetch' command in protocol version 2.  This feature
enables the 'fetch' command to support requests in the form of ref names
through a new "want-ref <ref>" parameter.  At the conclusion of
negotiation, the server will send a list of all of the wanted references
(as provided by "want-ref" lines) in addition to the generated packfile.

Signed-off-by: Brandon Williams <bmwill@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-06-28 09:33:29 -07:00
Todd Zullinger
45e851cb44 gitignore.txt: clarify default core.excludesfile path
The default core.excludesfile path is $XDG_CONFIG_HOME/git/ignore.
$HOME/.config/git/ignore is used if XDG_CONFIG_HOME is empty or unset,
as described later in the document.

Signed-off-by: Todd Zullinger <tmz@pobox.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-06-27 12:17:16 -07:00
Elijah Newren
b00bf1c9a8 git-rebase: make --allow-empty-message the default
rebase backends currently behave differently with empty commit messages,
largely as a side-effect of the different underlying commands on which
they are based.  am-based rebases apply commits with an empty commit
message without stopping or requiring the user to specify an extra flag.
(It is interesting to note that am-based rebases are the default rebase
type, and no one has ever requested a --no-allow-empty-message flag to
change this behavior.)  merge-based and interactive-based rebases (which
are ultimately based on git-commit), will currently halt on any such
commits and require the user to manually specify what to do with the
commit and continue.

One possible rationale for the difference in behavior is that the purpose
of an "am" based rebase is solely to transplant an existing history, while
an "interactive" rebase is one whose purpose is to polish a series before
making it publishable.  Thus, stopping and asking for confirmation for a
possible problem is more appropriate in the latter case.  However, there
are two problems with this rationale:

  1) merge-based rebases are also non-interactive and there are multiple
     types of rebases that use the interactive machinery but are not
     explicitly interactive (e.g. when either --rebase-merges or
     --keep-empty are specified without --interactive).  These rebases are
     also used solely to transplant an existing history, and thus also
     should default to --allow-empty-message.

  2) this rationale only says that the user is more accepting of stopping
     in the case of an explicitly interactive rebase, not that stopping
     for this particular reason actually makes sense.  Exploring whether
     it makes sense, requires backing up and analyzing the underlying
     commands...

If git-commit did not error out on empty commits by default, accidental
creation of commits with empty messages would be a very common occurrence
(this check has caught me many times).  Further, nearly all such empty
commit messages would be considered an accidental error (as evidenced by a
huge amount of documentation across version control systems and in various
blog posts explaining how important commit messages are).  A simple check
for what would otherwise be a common error thus made a lot of sense, and
git-commit gained an --allow-empty-message flag for special case
overrides.  This has made commits with empty messages very rare.

There are two sources for commits with empty messages for rebase (and
cherry-pick): (a) commits created in git where the user previously
specified --allow-empty-message to git-commit, and (b) commits imported
into git from other version control systems.  In case (a), the user has
already explicitly specified that there is something special about this
commit that makes them not want to specify a commit message; forcing them
to re-specify with every cherry-pick or rebase seems more likely to be
infuriating than helpful.  In case (b), the commit is highly unlikely to
have been authored by the person who has imported the history and is doing
the rebase or cherry-pick, and thus the user is unlikely to be the
appropriate person to write a commit message for it.  Stopping and
expecting the user to modify the commit before proceeding thus seems
counter-productive.

Further, note that while empty commit messages was a common error case for
git-commit to deal with, it is a rare case for rebase (or cherry-pick).
The fact that it is rare raises the question of why it would be worth
checking and stopping on this particular condition and not others.  For
example, why doesn't an interactive rebase automatically stop if the
commit message's first line is 2000 columns long, or is missing a blank
line after the first line, or has every line indented with five spaces, or
any number of other myriad problems?

Finally, note that if a user doing an interactive rebase does have the
necessary knowledge to add a message for any such commit and wants to do
so, it is rather simple for them to change the appropriate line from
'pick' to 'reword'.  The fact that the subject is empty in the todo list
that the user edits should even serve as a way to notify them.

As far as I can tell, the fact that merge-based and interactive-based
rebases stop on commits with empty commit messages is solely a by-product
of having been based on git-commit.  It went without notice for a long
time precisely because such cases are rare.  The rareness of this
situation made it difficult to reason about, so when folks did eventually
notice this behavior, they assumed it was there for a good reason and just
added an --allow-empty-message flag.  In my opinion, stopping on such
messages not desirable in any of these cases, even the (explicitly)
interactive case.

Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-06-27 11:23:22 -07:00
Elijah Newren
0661e49aeb git-rebase.txt: document behavioral differences between modes
There are a variety of aspects that are common to all rebases regardless
of which backend is in use; however, the behavior for these different
aspects varies in ways that could surprise users.  (In fact, it's not
clear -- to me at least -- that these differences were even desirable or
intentional.)  Document these differences.

Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-06-27 11:23:22 -07:00
Elijah Newren
4d34dffbdd directory-rename-detection.txt: technical docs on abilities and limitations
Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-06-27 11:23:22 -07:00
Elijah Newren
983f464fcb git-rebase.txt: address confusion between --no-ff vs --force-rebase
rebase was taught the --force-rebase option in commit b2f82e05de ("Teach
rebase to rebase even if upstream is up to date", 2009-02-13).  This flag
worked for the am and merge backends, but wasn't a valid option for the
interactive backend.

rebase was taught the --no-ff option for interactive rebases in commit
b499549401 ("Teach rebase the --no-ff option.", 2010-03-24), to do the
exact same thing as --force-rebase does for non-interactive rebases.  This
commit explicitly documented the fact that --force-rebase was incompatible
with --interactive, though it made --no-ff a synonym for --force-rebase
for non-interactive rebases.  The choice of a new option was based on the
fact that "force rebase" didn't sound like an appropriate term for the
interactive machinery.

In commit 6bb4e485cf ("rebase: align variable names", 2011-02-06), the
separate parsing of command line options in the different rebase scripts
was removed, and whether on accident or because the author noticed that
these options did the same thing, the options became synonyms and both
were accepted by all three rebase types.

In commit 2d26d533a0 ("Documentation/git-rebase.txt: -f forces a rebase
that would otherwise be a no-op", 2014-08-12), which reworded the
description of the --force-rebase option, the (no-longer correct) sentence
stating that --force-rebase was incompatible with --interactive was
finally removed.

Finally, as explained at
https://public-inbox.org/git/98279912-0f52-969d-44a6-22242039387f@xiplink.com

    In the original discussion around this option [1], at one point I
    proposed teaching rebase--interactive to respect --force-rebase
    instead of adding a new option [2].  Ultimately --no-ff was chosen as
    the better user interface design [3], because an interactive rebase
    can't be "forced" to run.

We have accepted both --no-ff and --force-rebase as full synonyms for all
three rebase types for over seven years.  Documenting them differently
and in ways that suggest they might not be quite synonyms simply leads to
confusion.  Adjust the documentation to match reality.

Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-06-27 11:23:22 -07:00
Derrick Stolee
d4f65b8d14 commit-graph: update design document
The commit-graph feature is now integrated with 'fsck' and 'gc',
so remove those items from the "Future Work" section of the
commit-graph design document.

Also remove the section on lazy-loading trees, as that was completed
in an earlier patch series.

Signed-off-by: Derrick Stolee <dstolee@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-06-27 10:29:11 -07:00
Derrick Stolee
d5d5d7b641 gc: automatically write commit-graph files
The commit-graph file is a very helpful feature for speeding up git
operations. In order to make it more useful, make it possible to
write the commit-graph file during standard garbage collection
operations.

Add a 'gc.commitGraph' config setting that triggers writing a
commit-graph file after any non-trivial 'git gc' command. Defaults to
false while the commit-graph feature matures. We specifically do not
want to have this on by default until the commit-graph feature is fully
integrated with history-modifying features like shallow clones.

Helped-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Derrick Stolee <dstolee@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-06-27 10:29:10 -07:00
Derrick Stolee
59fb87701f commit-graph: add '--reachable' option
When writing commit-graph files, it can be convenient to ask for all
reachable commits (starting at the ref set) in the resulting file. This
is particularly helpful when writing to stdin is complicated, such as a
future integration with 'git gc'.

Signed-off-by: Derrick Stolee <dstolee@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-06-27 10:29:10 -07:00
Derrick Stolee
e0fd51e1d7 fsck: verify commit-graph
If core.commitGraph is true, verify the contents of the commit-graph
during 'git fsck' using the 'git commit-graph verify' subcommand. Run
this check on all alternates, as well.

We use a new process for two reasons:

1. The subcommand decouples the details of loading and verifying a
   commit-graph file from the other fsck details.

2. The commit-graph verification requires the commits to be loaded
   in a specific order to guarantee we parse from the commit-graph
   file for some objects and from the object database for others.

Signed-off-by: Derrick Stolee <dstolee@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-06-27 10:29:10 -07:00
Derrick Stolee
283e68c72f commit-graph: add 'verify' subcommand
If the commit-graph file becomes corrupt, we need a way to verify
that its contents match the object database. In the manner of
'git fsck' we will implement a 'git commit-graph verify' subcommand
to report all issues with the file.

Add the 'verify' subcommand to the 'commit-graph' builtin and its
documentation. The subcommand is currently a no-op except for
loading the commit-graph into memory, which may trigger run-time
errors that would be caught by normal use. Add a simple test that
ensures the command returns a zero error code.

If no commit-graph file exists, this is an acceptable state. Do
not report any errors.

Helped-by: Ramsay Jones <ramsay@ramsayjones.plus.com>
Signed-off-by: Derrick Stolee <dstolee@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-06-27 10:27:05 -07:00
Vladimir Parfinenko
81d395cc85 rebase: fix documentation formatting
Last sections are squashed into non-formatted block after adding
"REBASING MERGES".
To reproduce the error see bottom of page:
https://git-scm.com/docs/git-rebase

Signed-off-by: Vladimir Parfinenko <vparfinenko@excelsior-usa.com>
Acked-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-06-27 09:57:49 -07:00
Elijah Newren
5dacd4abdd git-rebase.txt: document incompatible options
git rebase has many options that only work with one of its three backends.
It also has a few other pairs of incompatible options.  Document these.

Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-06-26 11:00:12 -07:00
Junio C Hamano
ed843436dd First batch for 2.19 cycle
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-06-25 13:27:15 -07:00
Junio C Hamano
ebaf0a56f3 Merge branch 'nd/complete-config-vars'
Continuing with the idea to programatically enumerate various
pieces of data required for command line completion, teach the
codebase to report the list of configuration variables
subcommands care about to help complete them.

* nd/complete-config-vars:
  completion: complete general config vars in two steps
  log-tree: allow to customize 'grafted' color
  completion: support case-insensitive config vars
  completion: keep other config var completion in camelCase
  completion: drop the hard coded list of config vars
  am: move advice.amWorkDir parsing back to advice.c
  advice: keep config name in camelCase in advice_config[]
  fsck: produce camelCase config key names
  help: add --config to list all available config
  fsck: factor out msg_id_info[] lazy initialization code
  grep: keep all colors in an array
  Add and use generic name->id mapping code for color slot parsing
2018-06-25 13:22:38 -07:00
Junio C Hamano
fa82bb70d9 Merge branch 'jk/show-index'
Modernize a less often used command.

* jk/show-index:
  show-index: update documentation for index v2
  make show-index a builtin
2018-06-25 13:22:37 -07:00
Junio C Hamano
ac997db0c1 Merge branch 'nd/diff-apply-ita'
"git diff" compares the index and the working tree.  For paths
added with intent-to-add bit, the command shows the full contents
of them as added, but the paths themselves were not marked as new
files.  They are now shown as new by default.

"git apply" learned the "--intent-to-add" option so that an
otherwise working-tree-only application of a patch will add new
paths to the index marked with the "intent-to-add" bit.

* nd/diff-apply-ita:
  apply: add --intent-to-add
  t2203: add a test about "diff HEAD" case
  diff: turn --ita-invisible-in-index on by default
  diff: ignore --ita-[in]visible-in-index when diffing worktree-to-tree
2018-06-25 13:22:36 -07:00
Junio C Hamano
a856e7d69f Merge branch 'ds/commit-graph-lockfile-fix'
Update to ds/generation-numbers topic.

* ds/commit-graph-lockfile-fix:
  commit-graph: fix UX issue when .lock file exists
  commit-graph.txt: update design document
  merge: check config before loading commits
  commit: use generation number in remove_redundant()
  commit: add short-circuit to paint_down_to_common()
  commit: use generation numbers for in_merge_bases()
  ref-filter: use generation number for --contains
  commit-graph: always load commit-graph information
  commit: use generations in paint_down_to_common()
  commit-graph: compute generation numbers
  commit: add generation number to struct commit
  ref-filter: fix outdated comment on in_commit_list
2018-06-25 13:22:36 -07:00
Junio C Hamano
ea27893a65 Merge branch 'pc/submodule-helper-foreach'
The bulk of "git submodule foreach" has been rewritten in C.

* pc/submodule-helper-foreach:
  submodule: port submodule subcommand 'foreach' from shell to C
  submodule foreach: document variable '$displaypath'
  submodule foreach: document '$sm_path' instead of '$path'
  submodule foreach: correct '$path' in nested submodules from a subdirectory
2018-06-25 13:22:35 -07:00
Junio C Hamano
0bf8c8ce40 Prepare to start 2.19 cycle
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-06-25 13:22:27 -07:00
Ville Skyttä
928f0ab4ba Documentation: spelling and grammar fixes
Signed-off-by: Ville Skyttä <ville.skytta@iki.fi>
Reviewed-by: Eric Sunshine <sunshine@sunshineco.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-06-22 14:26:23 -07:00
Jeff King
055930bc89 branch: deprecate "-l" option
The "-l" option is short for "--create-reflog". This has
caused much confusion over the years. Most people expect it
to work as "--list", because that would match the other
"mode" options like -d/--delete and -m/--move, as well as
the similar -l/--list option of git-tag.

Adding to the confusion, using "-l" _appears_ to work as
"--list" in some cases:

  $ git branch -l
  * master

because the branch command defaults to listing (so even
trying to specify --list in the command above is redundant).
But that may bite the user later when they add a pattern,
like:

  $ git branch -l foo

which does not return an empty list, but in fact creates a
new branch (with a reflog, naturally) called "foo".

It's also probably quite uncommon for people to actually use
"-l" to create a reflog. Since 0bee591869 (Enable reflogs by
default in any repository with a working directory.,
2006-12-14), this is the default in non-bare repositories.
So it's rather unfortunate that the feature squats on the
short-and-sweet "-l" (which was only added in 3a4b3f269c
(Create/delete branch ref logs., 2006-05-19), meaning there
were only 7 months where it was actually useful).

Let's deprecate "-l" in hopes of eventually re-purposing it
to "--list".

Note that we issue the warning only when we're not in list
mode. This means that people for whom it works as a happy
accident, namely:

  $ git branch -l
  master

won't see the warning at all. And when we eventually switch
to it meaning "--list", that will just continue to work.

We do the issue the warning for these important cases:

  - when we are actually creating a branch, in case the user
    really did mean it as "--create-reflog"

  - when we are in some _other_ mode, like deletion. There
    the "-l" is a noop for now, but it will eventually
    conflict with any other mode request, and the user
    should be told that this is changing.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-06-22 13:19:33 -07:00
Josh Steadmon
bb4d000e87 protocol-v2 doc: put HTTP headers after request
HTTP servers return 400 if you send headers before the GET request.

Signed-off-by: Josh Steadmon <steadmon@google.com>
Reviewed-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-06-22 13:03:42 -07:00
Taylor Blau
6653fec3bb grep.c: add configuration variables to show matched option
To support git-grep(1)'s new option, '--column', document and teach
grep.c how to interpret relevant configuration options, similar to those
associated with '--line-number'.

Signed-off-by: Taylor Blau <me@ttaylorr.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-06-22 12:59:02 -07:00
Taylor Blau
a449f27ffa builtin/grep.c: add '--column' option to 'git-grep(1)'
Teach 'git-grep(1)' a new option, '--column', to show the column
number of the first match on a non-context line. This makes it possible
to teach 'contrib/git-jump/git-jump' how to seek to the first matching
position of a grep match in your editor, and allows similar additional
scripting capabilities.

For example:

  $ git grep -n --column foo | head -n3
  .clang-format:51:14:# myFunction(foo, bar, baz);
  .clang-format:64:7:# int foo();
  .clang-format:75:8:# void foo()

Signed-off-by: Taylor Blau <me@ttaylorr.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-06-22 12:59:02 -07:00
Brandon Williams
0dcbc0392e docs: link to gitsubmodules
Add a link to gitsubmodules(7) under the `submodule.active` entry in
git-config(1).

Signed-off-by: Brandon Williams <bmwill@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-06-21 13:58:33 -07:00
Taylor Blau
f8a0c6e799 Documentation/config.txt: camel-case lineNumber for consistency
lineNumber has casing that is inconsistent with surrounding options,
like color.grep.matchContext, and color.grep.matchSelected. Re-case this
documentation in order to be consistent with the text around it, and to
ensure that new entries are consistent, too.

Signed-off-by: Taylor Blau <me@ttaylorr.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-06-21 13:48:36 -07:00
Karthikeyan Singaravelan
1f2abe68d0 doc: fix typos in documentation and release notes
Signed-off-by: Karthikeyan Singaravelan <tir.karthi@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-06-19 09:01:12 -07:00
Junio C Hamano
242ba98e44 Almost 2.18 final
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-06-18 11:24:21 -07:00
Junio C Hamano
1022379886 A bunch of micro-fixes before going 2.18 final
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-06-18 10:20:42 -07:00
Junio C Hamano
23fc55a90c Merge branch 'mw/doc-merge-enumfix'
Fix old merge glitch in Documentation during v2.13-rc0 era.

* mw/doc-merge-enumfix:
  doc: update the order of the syntax `git merge --continue`
2018-06-18 10:18:45 -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
Junio C Hamano
a626082629 Merge branch 'km/doc-workflows-typofix'
Typofix.

* km/doc-workflows-typofix:
  gitworkflows: fix grammar in 'Merge upwards' rule
2018-06-18 10:18:42 -07:00
Junio C Hamano
e638899470 Merge branch 'ld/git-p4-updates'
"git p4" updates.

* ld/git-p4-updates:
  git-p4: auto-size the block
  git-p4: narrow the scope of exceptions caught when parsing an int
  git-p4: raise exceptions from p4CmdList based on error from p4 server
  git-p4: better error reporting when p4 fails
  git-p4: add option to disable syncing of p4/master with p4
  git-p4: disable-rebase: allow setting this via configuration
  git-p4: add options --commit and --disable-rebase
2018-06-18 10:18:41 -07:00
Junio C Hamano
d676cc512a Merge branch 'rd/diff-options-typofix'
Typofix.

* rd/diff-options-typofix:
  diff-options.txt: fix minor typos, font inconsistencies, in docs
2018-06-18 10:18:41 -07:00
SZEDER Gábor
2e157d134c RelNotes 2.18: minor fix to entry about dynamically loading completions
It was not "newer versions of bash" but newer versions of
bash-completion that made commit 085e2ee0e6 (completion: load
completion file for external subcommand, 2018-04-29) both necessary
and possible.

Update the corresponding RelNotes entry accordingly.

Signed-off-by: SZEDER Gábor <szeder.dev@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-06-18 09:50:56 -07:00
Meng-Sung Wu
28cb06020b doc: update the order of the syntax git merge --continue
The syntax "git merge <message> HEAD <commit>" has been removed. The
order of the syntax should also be updated.

Signed-off-by: Meng-Sung Wu <mengsungwu@fortunewhite.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-06-14 09:15:55 -07:00
Junio C Hamano
68372c8879 Git 2.18-rc2
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-06-13 12:57:07 -07:00
Elijah Newren
b2453d3449 RelNotes 2.18: clarify where directory rename detection applies
Mention that this feature works with some commands (merge and cherry-pick,
implying that it also works with commands that build on these like rebase
-m and rebase -i).  Explicitly mentioning two commands hopefully implies
that it may not always work with other commands (am, and rebase without
flags that imply either -m or -i).

Also, since the directory rename detection from this cycle was
specifically added in merge-recursive and not diffcore-rename, remove the
'in "diff" family" phrase from the note.  (Folks have requested in the
past that `git diff` detect directory renames and somehow simplify its
output, so it may be helpful to avoid implying that diff has any new
capability here.)

Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-06-13 10:47:13 -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
Luke Diamand
b9d34db9a2 git-p4: add option to disable syncing of p4/master with p4
Add an option to the git-p4 submit command to disable syncing
with Perforce.

This is useful for the case where a git-p4 mirror has been setup
on a server somewhere, running from (e.g.) cron, and developers
then clone from this. Having the local cloned copy also sync
from Perforce just isn't useful.

Signed-off-by: Luke Diamand <luke@diamand.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-06-12 14:46:08 -07:00
Luke Diamand
3b3477ea5a git-p4: disable-rebase: allow setting this via configuration
This just lets you set the --disable-rebase option with the
git configuration options git-p4.disableRebase. If you're
using this option, you probably want to set it all the time
for a given repo.

Signed-off-by: Luke Diamand <luke@diamand.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-06-12 14:46:08 -07:00
Romain Merland
f55b87c1c7 git-p4: add options --commit and --disable-rebase
On a daily work with multiple local git branches, the usual way to
submit only a specified commit was to cherry-pick the commit on
master then run git-p4 submit.  It can be very annoying to switch
between local branches and master, only to submit one commit.  The
proposed new way is to select directly the commit you want to
submit.

Add option --commit to command 'git-p4 submit' in order to submit
only specified commit(s) in p4.

On a daily work developping software with big compilation time, one
may not want to rebase on his local git tree, in order to avoid long
recompilation.

Add option --disable-rebase to command 'git-p4 submit' in order to
disable rebase after submission.

Thanks-to: Cedric Borgese <cedric.borgese@gmail.com>
Reviewed-by: Luke Diamand <luke@diamand.org>
Signed-off-by: Romain Merland <merlorom@yahoo.fr>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-06-12 14:45:16 -07:00
Kyle Meyer
58ebd936cc gitworkflows: fix grammar in 'Merge upwards' rule
Signed-off-by: Kyle Meyer <kyle@kyleam.com>
Reviewed-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-06-12 10:19:48 -07:00
Robert P. J. Day
7eedad15df diff-options.txt: fix minor typos, font inconsistencies, in docs
Signed-off-by: Robert P. J. Day <rpjday@crashcourse.ca>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-06-11 13:11:09 -07:00
Ævar Arnfjörð Bjarmason
8d7b558bae checkout & worktree: introduce checkout.defaultRemote
Introduce a checkout.defaultRemote setting which can be used to
designate a remote to prefer (via checkout.defaultRemote=origin) when
running e.g. "git checkout master" to mean origin/master, even though
there's other remotes that have the "master" branch.

I want this because it's very handy to use this workflow to checkout a
repository and create a topic branch, then get back to a "master" as
retrieved from upstream:

    (
        cd /tmp &&
        rm -rf tbdiff &&
        git clone git@github.com:trast/tbdiff.git &&
        cd tbdiff &&
        git branch -m topic &&
        git checkout master
    )

That will output:

    Branch 'master' set up to track remote branch 'master' from 'origin'.
    Switched to a new branch 'master'

But as soon as a new remote is added (e.g. just to inspect something
from someone else) the DWIMery goes away:

    (
        cd /tmp &&
        rm -rf tbdiff &&
        git clone git@github.com:trast/tbdiff.git &&
        cd tbdiff &&
        git branch -m topic &&
        git remote add avar git@github.com:avar/tbdiff.git &&
        git fetch avar &&
        git checkout master
    )

Will output (without the advice output added earlier in this series):

    error: pathspec 'master' did not match any file(s) known to git.

The new checkout.defaultRemote config allows me to say that whenever
that ambiguity comes up I'd like to prefer "origin", and it'll still
work as though the only remote I had was "origin".

Also adjust the advice.checkoutAmbiguousRemoteBranchName message to
mention this new config setting to the user, the full output on my
git.git is now (the last paragraph is new):

    $ ./git --exec-path=$PWD checkout master
    error: pathspec 'master' did not match any file(s) known to git.
    hint: 'master' matched more than one remote tracking branch.
    hint: We found 26 remotes with a reference that matched. So we fell back
    hint: on trying to resolve the argument as a path, but failed there too!
    hint:
    hint: If you meant to check out a remote tracking branch on, e.g. 'origin',
    hint: you can do so by fully qualifying the name with the --track option:
    hint:
    hint:     git checkout --track origin/<name>
    hint:
    hint: If you'd like to always have checkouts of an ambiguous <name> prefer
    hint: one remote, e.g. the 'origin' remote, consider setting
    hint: checkout.defaultRemote=origin in your config.

I considered splitting this into checkout.defaultRemote and
worktree.defaultRemote, but it's probably less confusing to break our
own rules that anything shared between config should live in core.*
than have two config settings, and I couldn't come up with a short
name under core.* that made sense (core.defaultRemoteForCheckout?).

See also 70c9ac2f19 ("DWIM "git checkout frotz" to "git checkout -b
frotz origin/frotz"", 2009-10-18) which introduced this DWIM feature
to begin with, and 4e85333197 ("worktree: make add <path> <branch>
dwim", 2017-11-26) which added it to git-worktree.

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-06-11 09:41:02 -07:00
Ævar Arnfjörð Bjarmason
ad8d5104b4 checkout: add advice for ambiguous "checkout <branch>"
As the "checkout" documentation describes:

    If <branch> is not found but there does exist a tracking branch in
    exactly one remote (call it <remote>) with a matching name, treat
    as equivalent to [...] <remote>/<branch.

This is a really useful feature. The problem is that when you add
another remote (e.g. a fork), git won't find a unique branch name
anymore, and will instead print this unhelpful message:

    $ git checkout master
    error: pathspec 'master' did not match any file(s) known to git

Now it will, on my git.git checkout, print:

    $ ./git --exec-path=$PWD checkout master
    error: pathspec 'master' did not match any file(s) known to git.
    hint: 'master' matched more than one remote tracking branch.
    hint: We found 26 remotes with a reference that matched. So we fell back
    hint: on trying to resolve the argument as a path, but failed there too!
    hint:
    hint: If you meant to check out a remote tracking branch on, e.g. 'origin',
    hint: you can do so by fully qualifying the name with the --track option:
    hint:
    hint:     git checkout --track origin/<name>

Note that the "error: pathspec[...]" message is still printed. This is
because whatever else checkout may have tried earlier, its final
fallback is to try to resolve the argument as a path. E.g. in this
case:

    $ ./git --exec-path=$PWD checkout master pu
    error: pathspec 'master' did not match any file(s) known to git.
    error: pathspec 'pu' did not match any file(s) known to git.

There we don't print the "hint:" implicitly due to earlier logic
around the DWIM fallback. That fallback is only used if it looks like
we have one argument that might be a branch.

I can't think of an intrinsic reason for why we couldn't in some
future change skip printing the "error: pathspec[...]" error. However,
to do so we'd need to pass something down to checkout_paths() to make
it suppress printing an error on its own, and for us to be confident
that we're not silencing cases where those errors are meaningful.

I don't think that's worth it since determining whether that's the
case could easily change due to future changes in the checkout logic.

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-06-11 09:41:01 -07:00
Junio C Hamano
6f333ff2fb RelNotes 2.18: typofixes
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-06-11 09:15:34 -07:00
Junio C Hamano
3e5524907b Git 2.18-rc1
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-06-04 21:41:41 +09:00
Junio C Hamano
7fe48cb396 Merge branch 'tg/doc-sec-list'
Doc update.

* tg/doc-sec-list:
  note git-security@googlegroups.com in more places
  SubmittingPatches: replace numbered attributes with names
2018-06-04 21:39:49 +09:00
Junio C Hamano
c45505d081 Merge branch 'rd/p4-doc-markup-env'
Doc markup update.

* rd/p4-doc-markup-env:
  p4.txt: Use backquotes for variable names
2018-06-04 21:39:49 +09:00
Junio C Hamano
643a9ea3e0 Merge branch 'nd/remote-update-doc'
"git remote update" can take both a single remote nickname and a
nickname for remote groups, but only one of them was documented.

* nd/remote-update-doc:
  remote: doc typofix
  remote.txt: update documentation for 'update' command
2018-06-04 21:39:49 +09:00
Duy Nguyen
a97447a42a remote: doc typofix
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-06-04 20:04:33 +09:00
Junio C Hamano
c2c7d17b03 A bit more topics before -rc1
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-06-01 15:16:15 +09:00
Junio C Hamano
cbb408e6ae Merge branch 'rd/tag-doc-lightweight'
Docfix.

* rd/tag-doc-lightweight:
  tag: clarify in the doc that a tag can refer to a non-commit object
2018-06-01 15:06:39 +09:00
Junio C Hamano
7659bda0f3 Merge branch 'rd/doc-options-placeholder'
Docfix.

* rd/doc-options-placeholder:
  Use proper syntax for replaceables in command docs
2018-06-01 15:06:39 +09:00
Junio C Hamano
caf0c98c63 Merge branch 'ld/p4-unshelve'
"git p4" learned to "unshelve" shelved commit from P4.

* ld/p4-unshelve:
  git-p4: add unshelve command
2018-06-01 15:06:38 +09:00
Junio C Hamano
2289880f78 Merge branch 'nd/command-list'
The list of commands with their various attributes were spread
across a few places in the build procedure, but it now is getting a
bit more consolidated to allow more automation.

* nd/command-list:
  completion: allow to customize the completable command list
  completion: add and use --list-cmds=alias
  completion: add and use --list-cmds=nohelpers
  Move declaration for alias.c to alias.h
  completion: reduce completable command list
  completion: let git provide the completable command list
  command-list.txt: documentation and guide line
  help: use command-list.txt for the source of guides
  help: add "-a --verbose" to list all commands with synopsis
  git: support --list-cmds=list-<category>
  completion: implement and use --list-cmds=main,others
  git --list-cmds: collect command list in a string_list
  git.c: convert --list-* to --list-cmds=*
  Remove common-cmds.h
  help: use command-list.h for common command list
  generate-cmds.sh: export all commands to command-list.h
  generate-cmds.sh: factor out synopsis extract code
2018-06-01 15:06:37 +09:00
Robert P. J. Day
f156a0934a p4.txt: Use backquotes for variable names
For consistency, use backquotes when referring to environment
variables, as is done in other man pages.

Signed-off-by: Robert P. J. Day <rpjday@crashcourse.ca>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-06-01 10:47:05 +09:00
Duy Nguyen
86f0b3727c remote.txt: update documentation for 'update' command
Commit b344e1614b (git remote update: Fallback to remote if group does
not exist - 2009-04-06) lets "git remote update" accept individual
remotes as well. Previously this command only accepted remote
groups. The commit updates the command syntax but not the actual
document of this subcommand. Update it.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-06-01 10:46:03 +09:00
Elijah Newren
2161ed8098 RelNotes: remove duplicate release note
In the 2.18 cycle, directory rename detection was merged, then reverted,
then reworked in such a way to fix another prominent bug in addition to
the original problem causing it to be reverted.  When the reworked series
was merged, we ended up with two nearly duplicate release notes.  Remove
the second copy, but preserve the information about the extra bug fix.

Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-06-01 10:08:53 +09:00
Thomas Gummerer
2a00502b14 note git-security@googlegroups.com in more places
Add a mention of the security mailing list to the README, and to
Documentation/SubmittingPatches..  2caa7b8d27 ("git manpage: note
git-security@googlegroups.com", 2018-03-08) already added it to the
man page, but for developers either the README, or the documentation
on how to contribute (SubmittingPatches) may be the first place to
look.

Use the same wording as we already have on the git-scm.com website and
in the man page for the README, while the wording is adjusted in
SubmittingPatches to match the surrounding document better.

Signed-off-by: Thomas Gummerer <t.gummerer@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-06-01 09:24:11 +09:00
Thomas Gummerer
a27cd1ab7f SubmittingPatches: replace numbered attributes with names
Use names instead of numbers for the AsciiDoc attributes that are used
for the footnotes.  We will add more footnotes in subsequent commits,
and attributes should ideally all be unique.  Having named attributes
will help ensure uniqueness, and we won't have to re-number the
attributes if we add a footnote earlier in the document.

In addition it also clarifies that the attribute name/number is not
related to the number the footnote will get in the output.

Signed-off-by: Thomas Gummerer <t.gummerer@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-06-01 09:24:11 +09:00
Junio C Hamano
12039e008f Git 2.18-rc0
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-05-30 21:51:57 +09:00
Junio C Hamano
f15a486ca1 The seventh batch for 2.18
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-05-30 14:10:34 +09:00
Junio C Hamano
ab48bc0aea Merge branch 'ab/get-short-oid'
When a short hexadecimal string is used to name an object but there
are multiple objects that share the string as the prefix of their
names, the code lists these ambiguous candidates in a help message.
These object names are now sorted according to their types for
easier eyeballing.

* ab/get-short-oid:
  get_short_oid: sort ambiguous objects by type, then SHA-1
  sha1-name.c: move around the collect_ambiguous() function
  git-p4: change "commitish" typo to "committish"
  sha1-array.h: align function arguments
  sha1-name.c: remove stray newline
2018-05-30 14:04:11 +09:00
Junio C Hamano
54db5c0e1e Merge branch 'jt/partial-clone-proto-v2'
Transfer protocol v2 learned to support the partial clone.

* jt/partial-clone-proto-v2:
  {fetch,upload}-pack: support filter in protocol v2
  upload-pack: read config when serving protocol v2
  upload-pack: fix error message typo
2018-05-30 14:04:10 +09:00
Junio C Hamano
3d24129799 Merge branch 'sb/blame-color'
"git blame" learns to unhighlight uninteresting metadata from the
originating commit on lines that are the same as the previous one,
and also paint lines in different colors depending on the age of
the commit.

* sb/blame-color:
  builtin/blame: add new coloring scheme config
  builtin/blame: highlight recently changed lines
  builtin/blame: dim uninteresting metadata lines
2018-05-30 14:04:09 +09:00
Junio C Hamano
2a98a8794e Merge branch 'cf/submodule-progress-dissociate'
"git submodule update" and "git submodule add" supported the
"--reference" option to borrow objects from a neighbouring local
repository like "git clone" does, but lacked the more recent
invention "--dissociate".  Also "git submodule add" has been taught
to take the "--progress" option.

* cf/submodule-progress-dissociate:
  submodule: add --dissociate option to add/update commands
  submodule: add --progress option to add command
  submodule: clean up substitutions in script
2018-05-30 14:04:09 +09:00
Junio C Hamano
5da4847dcc Merge branch 'bp/status-rename-config'
"git status" learned to honor a new status.renames configuration to
skip rename detection, which could be useful for those who want to
do so without disabling the default rename detection done by the
"git diff" command.

* bp/status-rename-config:
  add status config and command line options for rename detection
2018-05-30 14:04:07 +09:00
Junio C Hamano
6e2ba77bda Merge branch 'bp/merge-rename-config'
With merge.renames configuration set to false, the recursive merge
strategy can be told not to spend cycles trying to find renamed
paths and merge them accordingly.

* bp/merge-rename-config:
  merge: pass aggressive when rename detection is turned off
  merge: add merge.renames config setting
  merge: update documentation for {merge,diff}.renameLimit
2018-05-30 14:04:04 +09:00
Junio C Hamano
7913f53b56 Sync with Git 2.17.1
* maint: (25 commits)
  Git 2.17.1
  Git 2.16.4
  Git 2.15.2
  Git 2.14.4
  Git 2.13.7
  fsck: complain when .gitmodules is a symlink
  index-pack: check .gitmodules files with --strict
  unpack-objects: call fsck_finish() after fscking objects
  fsck: call fsck_finish() after fscking objects
  fsck: check .gitmodules content
  fsck: handle promisor objects in .gitmodules check
  fsck: detect gitmodules files
  fsck: actually fsck blob data
  fsck: simplify ".git" check
  index-pack: make fsck error message more specific
  verify_path: disallow symlinks in .gitmodules
  update-index: stat updated files earlier
  verify_dotfile: mention case-insensitivity in comment
  verify_path: drop clever fallthrough
  skip_prefix: add case-insensitive variant
  ...
2018-05-29 17:10:05 +09:00
Nguyễn Thái Ngọc Duy
09c4ba410b log-tree: allow to customize 'grafted' color
Commit 76f5df305b (log: decorate grafted commits with "grafted" -
2011-08-18) lets us decorate grafted commits but I forgot about the
color.decorate.* config.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-05-29 14:51:29 +09:00
Nguyễn Thái Ngọc Duy
3ac68a93fd help: add --config to list all available config
Sometimes it helps to list all available config vars so the user can
search for something they want. The config man page can also be used
but it's harder to search if you want to focus on the variable name,
for example.

This is not the best way to collect the available config since it's
not precise. Ideally we should have a centralized list of config in C
code (pretty much like 'struct option'), but that's a lot more work.
This will do for now.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-05-29 14:51:28 +09:00
Junio C Hamano
17b3e51505 Merge branch 'nd/command-list' into nd/complete-config-vars
* nd/command-list:
  completion: allow to customize the completable command list
  completion: add and use --list-cmds=alias
  completion: add and use --list-cmds=nohelpers
  Move declaration for alias.c to alias.h
  completion: reduce completable command list
  completion: let git provide the completable command list
  command-list.txt: documentation and guide line
  help: use command-list.txt for the source of guides
  help: add "-a --verbose" to list all commands with synopsis
  git: support --list-cmds=list-<category>
  completion: implement and use --list-cmds=main,others
  git --list-cmds: collect command list in a string_list
  git.c: convert --list-* to --list-cmds=*
  Remove common-cmds.h
  help: use command-list.h for common command list
  generate-cmds.sh: export all commands to command-list.h
  generate-cmds.sh: factor out synopsis extract code
2018-05-29 14:51:14 +09:00
Nguyễn Thái Ngọc Duy
cff5dc09ed apply: add --intent-to-add
Similar to 'git reset -N', this option makes 'git apply' automatically
mark new files as intent-to-add so they are visible in the following
'git diff' command and could also be committed with 'git commit -a'.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-05-29 12:42:30 +09:00
Robert P. J. Day
590551ca2c tag: clarify in the doc that a tag can refer to a non-commit object
Reword "man git-tag" to clarify that a tag can refer directly to an
arbitrary object, not just a commit object.

Signed-off-by: Robert P. J. Day <rpjday@crashcourse.ca>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-05-29 11:55:34 +09:00
Jeff King
fb3010c31f show-index: update documentation for index v2
Commit 32637cdf4a (show-index.c: learn about index v2,
2007-04-09) changed the output format of show-index to
include the object CRC32 but didn't update the
documentation. Let's fix that and generally describe the
output in more detail.

There are a few other fixes here while we're rewording:

 - refer to index-pack along with pack-objects, since either
   can create .idx files

 - use "linkgit:" for referring to other commands

 - expand the bit about verify-pack, giving reasons why you
   might want this command instead. I almost omitted this
   entirely, but referring to verify-pack might help a
   reader who is looking for more information.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-05-29 00:28:22 +09:00
Robert P. J. Day
de613050ef Use proper syntax for replaceables in command docs
The standard for command documentation synopses appears to be:

  [...] means optional
  <...> means replaceable
  [<...>] means both optional and replaceable

So fix a number of doc pages that use incorrect variations of the
above.

Signed-off-by: Robert P. J. Day <rpjday@crashcourse.ca>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-05-25 17:16:47 +09:00
Luke Diamand
123f631761 git-p4: add unshelve command
This can be used to "unshelve" a shelved P4 commit into
a git commit.

For example:

  $ git p4 unshelve 12345

The resulting commit ends up in the branch:
   refs/remotes/p4/unshelved/12345

If that branch already exists, it is renamed - for example
the above branch would be saved as p4/unshelved/12345.1.

git-p4 checks that the shelved changelist is based on files
which are at the same Perforce revision as the origin branch
being used for the unshelve (HEAD by default). If they are not,
it will refuse to unshelve. This is to ensure that the unshelved
change does not contain other changes mixed-in.

The reference branch can be changed manually with the "--origin"
option.

The change adds a new Unshelve command class. This just runs the
existing P4Sync code tweaked to handle a shelved changelist.

Signed-off-by: Luke Diamand <luke@diamand.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-05-24 08:58:28 +09:00
Junio C Hamano
e144d126d7 The sixth batch for 2.18
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-05-23 14:45:34 +09:00
Junio C Hamano
d7e9611025 Merge branch 'bc/asciidoctor-tab-width'
Asciidoctor gives a reasonable imitation for AsciiDoc, but does not
render illustration in a literal block correctly when indented with
HT by default. The problem is fixed by forcing 8-space tabs.

* bc/asciidoctor-tab-width:
  Documentation: render revisions correctly under Asciidoctor
  Documentation: use 8-space tabs with Asciidoctor
2018-05-23 14:38:25 +09:00
Junio C Hamano
5a97e7be88 Merge branch 'nd/pack-unreachable-objects-doc'
Doc update.

* nd/pack-unreachable-objects-doc:
  pack-objects: validation and documentation about unreachable options
2018-05-23 14:38:24 +09:00
Junio C Hamano
be75d12982 Merge branch 'ah/misc-doc-updates'
Misc doc fixes.

* ah/misc-doc-updates:
  doc: normalize [--options] to [options] in git-diff
  doc: add note about shell quoting to revision.txt
  git-svn: remove ''--add-author-from' for 'commit-diff'
  doc: add '-d' and '-o' for 'git push'
  doc: clarify ignore rules for git ls-files
  doc: align 'diff --no-index' in text and synopsis
  doc: improve formatting in githooks.txt
2018-05-23 14:38:23 +09:00
Junio C Hamano
6b0f1d9c47 Merge branch 'nd/doc-header'
Doc formatting fix.

* nd/doc-header:
  doc: keep first level section header in upper case
2018-05-23 14:38:22 +09:00
Junio C Hamano
2c18e6ae24 Merge branch 'js/rebase-recreate-merge'
"git rebase" learned "--rebase-merges" to transplant the whole
topology of commit graph elsewhere.

* js/rebase-recreate-merge:
  rebase -i --rebase-merges: add a section to the man page
  rebase -i: introduce --rebase-merges=[no-]rebase-cousins
  pull: accept --rebase=merges to recreate the branch topology
  rebase --rebase-merges: avoid "empty merges"
  sequencer: handle post-rewrite for merge commands
  sequencer: make refs generated by the `label` command worktree-local
  rebase --rebase-merges: add test for --keep-empty
  rebase: introduce the --rebase-merges option
  rebase-helper --make-script: introduce a flag to rebase merges
  sequencer: fast-forward `merge` commands, if possible
  sequencer: introduce the `merge` command
  sequencer: introduce new commands to reset the revision
  git-rebase--interactive: clarify arguments
  sequencer: offer helpful advice when a command was rescheduled
  sequencer: refactor how original todo list lines are accessed
  sequencer: make rearrange_squash() a bit more obvious
  sequencer: avoid using errno clobbered by rollback_lock_file()
2018-05-23 14:38:20 +09:00
Junio C Hamano
ad635e82d6 Merge branch 'nd/pack-objects-pack-struct'
"git pack-objects" needs to allocate tons of "struct object_entry"
while doing its work, and shrinking its size helps the performance
quite a bit.

* nd/pack-objects-pack-struct:
  ci: exercise the whole test suite with uncommon code in pack-objects
  pack-objects: reorder members to shrink struct object_entry
  pack-objects: shrink delta_size field in struct object_entry
  pack-objects: shrink size field in struct object_entry
  pack-objects: clarify the use of object_entry::size
  pack-objects: don't check size when the object is bad
  pack-objects: shrink z_delta_size field in struct object_entry
  pack-objects: refer to delta objects by index instead of pointer
  pack-objects: move in_pack out of struct object_entry
  pack-objects: move in_pack_pos out of struct object_entry
  pack-objects: use bitfield for object_entry::depth
  pack-objects: use bitfield for object_entry::dfs_state
  pack-objects: turn type and in_pack_type to bitfields
  pack-objects: a bit of document about struct object_entry
  read-cache.c: make $GIT_TEST_SPLIT_INDEX boolean
2018-05-23 14:38:19 +09:00
Junio C Hamano
c9aac55c4e Merge branch 'js/no-pager-shorthand'
"git --no-pager cmd" did not have short-and-sweet single letter
option. Now it does.

* js/no-pager-shorthand:
  git: add -P as a short option for --no-pager
2018-05-23 14:38:18 +09:00
Junio C Hamano
10174da9f1 Merge branch 'tg/worktree-add-existing-branch'
"git worktree add" learned to check out an existing branch.

* tg/worktree-add-existing-branch:
  worktree: teach "add" to check out existing branches
  worktree: factor out dwim_branch function
  worktree: improve message when creating a new worktree
  worktree: remove extra members from struct add_opts
2018-05-23 14:38:18 +09:00
Junio C Hamano
352cf6cfe1 Merge branch 'js/deprecate-grafts'
The functionality of "$GIT_DIR/info/grafts" has been superseded by
the "refs/replace/" mechanism for some time now, but the internal
code had support for it in many places, which has been cleaned up
in order to drop support of the "grafts" mechanism.

* js/deprecate-grafts:
  Remove obsolete script to convert grafts to replace refs
  technical/shallow: describe why shallow cannot use replace refs
  technical/shallow: stop referring to grafts
  filter-branch: stop suggesting to use grafts
  Deprecate support for .git/info/grafts
  Add a test for `git replace --convert-graft-file`
  replace: introduce --convert-graft-file
  replace: prepare create_graft() for converting graft files wholesale
  replace: "libify" create_graft() and callees
  replace: avoid using die() to indicate a bug
  commit: Let the callback of for_each_mergetag return on error
  argv_array: offer to split a string by whitespace
2018-05-23 14:38:17 +09:00
Junio C Hamano
41267e9697 Merge branch 'bw/server-options'
The transport protocol v2 is getting updated further.

* bw/server-options:
  fetch: send server options when using protocol v2
  ls-remote: send server options when using protocol v2
  serve: introduce the server-option capability
2018-05-23 14:38:15 +09:00
Junio C Hamano
30b015bffe Merge branch 'nd/repack-keep-pack'
"git gc" in a large repository takes a lot of time as it considers
to repack all objects into one pack by default.  The command has
been taught to pretend as if the largest existing packfile is
marked with ".keep" so that it is left untouched while objects in
other packs and loose ones are repacked.

* nd/repack-keep-pack:
  pack-objects: show some progress when counting kept objects
  gc --auto: exclude base pack if not enough mem to "repack -ad"
  gc: handle a corner case in gc.bigPackThreshold
  gc: add gc.bigPackThreshold config
  gc: add --keep-largest-pack option
  repack: add --keep-pack option
  t7700: have closing quote of a test at the beginning of line
2018-05-23 14:38:14 +09:00
Junio C Hamano
b577198526 Merge branch 'nd/pack-format-doc'
Doc update.

* nd/pack-format-doc:
  pack-format.txt: more details on pack file format
2018-05-23 14:38:11 +09:00
Junio C Hamano
ece48106e6 Merge branch 'jk/apply-p-doc'
Doc update.

* jk/apply-p-doc:
  apply: clarify "-p" documentation
2018-05-23 14:38:11 +09:00
Junio C Hamano
d9a0ddc217 Merge branch 'ao/config-api-doc'
Doc update.

* ao/config-api-doc:
  doc: fix config API documentation about config_with_options
2018-05-23 14:38:10 +09:00
Junio C Hamano
fc54c1af3e Git 2.17.1
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-05-22 14:28:26 +09:00
Junio C Hamano
68f95b26e4 Sync with Git 2.16.4
* maint-2.16:
  Git 2.16.4
  Git 2.15.2
  Git 2.14.4
  Git 2.13.7
  verify_path: disallow symlinks in .gitmodules
  update-index: stat updated files earlier
  verify_dotfile: mention case-insensitivity in comment
  verify_path: drop clever fallthrough
  skip_prefix: add case-insensitive variant
  is_{hfs,ntfs}_dotgitmodules: add tests
  is_ntfs_dotgit: match other .git files
  is_hfs_dotgit: match other .git files
  is_ntfs_dotgit: use a size_t for traversing string
  submodule-config: verify submodule names as paths
2018-05-22 14:25:26 +09:00
Junio C Hamano
a42a58d7b6 Git 2.16.4
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-05-22 14:18:51 +09:00
Junio C Hamano
023020401d Sync with Git 2.15.2
* maint-2.15:
  Git 2.15.2
  Git 2.14.4
  Git 2.13.7
  verify_path: disallow symlinks in .gitmodules
  update-index: stat updated files earlier
  verify_dotfile: mention case-insensitivity in comment
  verify_path: drop clever fallthrough
  skip_prefix: add case-insensitive variant
  is_{hfs,ntfs}_dotgitmodules: add tests
  is_ntfs_dotgit: match other .git files
  is_hfs_dotgit: match other .git files
  is_ntfs_dotgit: use a size_t for traversing string
  submodule-config: verify submodule names as paths
2018-05-22 14:18:06 +09:00
Junio C Hamano
d33c87517a Git 2.15.2
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-05-22 14:15:59 +09:00
Junio C Hamano
9e0f06d55d Sync with Git 2.14.4
* maint-2.14:
  Git 2.14.4
  Git 2.13.7
  verify_path: disallow symlinks in .gitmodules
  update-index: stat updated files earlier
  verify_dotfile: mention case-insensitivity in comment
  verify_path: drop clever fallthrough
  skip_prefix: add case-insensitive variant
  is_{hfs,ntfs}_dotgitmodules: add tests
  is_ntfs_dotgit: match other .git files
  is_hfs_dotgit: match other .git files
  is_ntfs_dotgit: use a size_t for traversing string
  submodule-config: verify submodule names as paths
2018-05-22 14:15:14 +09:00
Junio C Hamano
4dde7b8799 Git 2.14.4
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-05-22 14:12:02 +09:00
Junio C Hamano
7b01c71b64 Sync with Git 2.13.7
* maint-2.13:
  Git 2.13.7
  verify_path: disallow symlinks in .gitmodules
  update-index: stat updated files earlier
  verify_dotfile: mention case-insensitivity in comment
  verify_path: drop clever fallthrough
  skip_prefix: add case-insensitive variant
  is_{hfs,ntfs}_dotgitmodules: add tests
  is_ntfs_dotgit: match other .git files
  is_hfs_dotgit: match other .git files
  is_ntfs_dotgit: use a size_t for traversing string
  submodule-config: verify submodule names as paths
2018-05-22 14:10:49 +09:00
Junio C Hamano
0114f71344 Git 2.13.7
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-05-22 13:50:36 +09:00
Derrick Stolee
1472978ec6 commit-graph.txt: update design document
We now calculate generation numbers in the commit-graph file and use
them in paint_down_to_common().

Expand the section on generation numbers to discuss how the three
special generation numbers GENERATION_NUMBER_INFINITY, _ZERO, and
_MAX interact with other generation numbers.

Signed-off-by: Derrick Stolee <dstolee@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-05-22 12:36:34 +09:00
Casey Fitzpatrick
a0ef29341a submodule: add --dissociate option to add/update commands
Add --dissociate option to add and update commands, both clone helper commands
that already have the --reference option --dissociate pairs with.

Signed-off-by: Casey Fitzpatrick <kcghost@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-05-22 12:22:42 +09:00
Casey Fitzpatrick
6d33e1c282 submodule: add --progress option to add command
The '--progress' was introduced in 72c5f88311 (clone: pass --progress
decision to recursive submodules, 2016-09-22) to fix the progress reporting
of the clone command. Also add the progress option to the 'submodule add'
command. The update command already supports the progress flag, but it
is not documented.

Signed-off-by: Casey Fitzpatrick <kcghost@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-05-22 12:17:10 +09:00
Nguyễn Thái Ngọc Duy
6532f3740b completion: allow to customize the completable command list
By default we show porcelain, external commands and a couple others
that are also popular. If you are not happy with this list, you can
now customize it a new config variable.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-05-21 13:23:14 +09:00
Nguyễn Thái Ngọc Duy
3301d36b29 completion: add and use --list-cmds=alias
By providing aliases via --list-cmds=, we could simplify command
collection code in the script. We only issue one git command. Before
this patch that is "git config", after it's "git --list-cmds=". In
"git help" completion case we actually reduce one "git" process (for
getting guides) but that call was added in this series so it does not
really count.

A couple of bash functions are removed because they are not needed
anymore. __git_compute_all_commands() and $__git_all_commands stay
because they are still needed for completing pager.* config and
without "alias" group, the result is still cacheable.

There is a slight (good) change in _git_help() with this patch: before
"git help <tab>" shows external commands (as in _not_ part of git) as
well as part of $__git_all_commands. We have finer control over
command listing now and can exclude that because we can't provide a
man page for external commands anyway.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-05-21 13:23:14 +09:00
Nguyễn Thái Ngọc Duy
e11dca10cf completion: add and use --list-cmds=nohelpers
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-05-21 13:23:14 +09:00
Nguyễn Thái Ngọc Duy
1b81d8cb19 help: use command-list.txt for the source of guides
The help command currently hard codes the list of guides and their
summary in C. Let's move this list to command-list.txt. This lets us
extract summary lines from Documentation/git*.txt. This also
potentially lets us list guides in git.txt, but I'll leave that for
now.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-05-21 13:23:14 +09:00
Nguyễn Thái Ngọc Duy
63eae83f8f help: add "-a --verbose" to list all commands with synopsis
This lists all recognized commands [1] by category. The group order
follows closely git.txt.

[1] We may actually show commands that are not built (e.g. if you set
NO_PERL you don't have git-instaweb but it's still listed here). I
ignore the problem because on Linux a git package could be split
anyway. The "git-core" package may not contain git-instaweb even if
it's built because it may end up in a separate package. We can't know
anyway.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-05-21 13:23:14 +09:00
Nguyễn Thái Ngọc Duy
3c7777672b git: support --list-cmds=list-<category>
This allows us to select any group of commands by a category defined
in command-list.txt. This is an internal/hidden option so we don't
have to be picky about the category name or worried about exposing too
much.

This will be used later by git-completion.bash to retrieve certain
command groups.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-05-21 13:23:14 +09:00
Nguyễn Thái Ngọc Duy
6bb2dc0b94 completion: implement and use --list-cmds=main,others
This is part of the effort to break down and provide commands by
category in machine-readable form. This could be helpful later on when
completion script switches to use --list-cmds for selecting
completable commands. It would be much easier for the user to choose
to complete _all_ commands instead of the default selection by passing
different values to --list-cmds in git-completino.bash.

While at there, replace "git help -a" in git-completion.bash with
--list-cmds since it's better suited for this task.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-05-21 13:23:14 +09:00
Nguyễn Thái Ngọc Duy
0089521cac git.c: convert --list-* to --list-cmds=*
Even if these are hidden options, let's make them a bit more generic
since we're introducing more listing types shortly. The code is
structured to allow combining multiple listing types together because
we will soon add more types the 'builtins'.

'parseopt' remains separate because it has separate (SPC) to match
git-completion.bash needs and will not combine with others.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-05-21 13:23:13 +09:00
Ben Peart
e8b2dc2c2a add status config and command line options for rename detection
After performing a merge that has conflicts git status will, by default,
attempt to detect renames which causes many objects to be examined.  In a
virtualized repo, those objects do not exist locally so the rename logic
triggers them to be fetched from the server. This results in the status call
taking hours to complete on very large repos vs seconds with this patch.

Add a new config status.renames setting to enable turning off rename
detection during status and commit.  This setting will default to the value
of diff.renames.

Add a new config status.renamelimit setting to to enable bounding the time
spent finding out inexact renames during status and commit.  This setting
will default to the value of diff.renamelimit.

Add --no-renames command line option to status that enables overriding the
config setting from the command line. Add --find-renames[=<n>] command line
option to status that enables detecting renames and optionally setting the
similarity index.

Reviewed-by: Elijah Newren <newren@gmail.com>
Original-Patch-by: Alejandro Pauly <alpauly@microsoft.com>
Signed-off-by: Ben Peart <Ben.Peart@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-05-13 10:57:37 +09:00
Nguyễn Thái Ngọc Duy
011b648646 pack-format.txt: more details on pack file format
The current document mentions OBJ_* constants without their actual
values. A git developer would know these are from cache.h but that's
not very friendly to a person who wants to read this file to implement
a pack file parser.

Similarly, the deltified representation is not documented at all (the
"document" is basically patch-delta.c). Translate that C code to
English with a bit more about what ofs-delta and ref-delta mean.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-05-13 10:20:03 +09:00
Ævar Arnfjörð Bjarmason
5cc044e025 get_short_oid: sort ambiguous objects by type, then SHA-1
Change the output emitted when an ambiguous object is encountered so
that we show tags first, then commits, followed by trees, and finally
blobs. Within each type we show objects in hashcmp() order. Before
this change the objects were only ordered by hashcmp().

The reason for doing this is that the output looks better as a result,
e.g. the v2.17.0 tag before this change on "git show e8f2" would
display:

    hint: The candidates are:
    hint:   e8f2093055 tree
    hint:   e8f21caf94 commit 2013-06-24 - bash prompt: print unique detached HEAD abbreviated object name
    hint:   e8f21d02f7 blob
    hint:   e8f21d577c blob
    hint:   e8f25a3a50 tree
    hint:   e8f26250fa commit 2017-02-03 - Merge pull request #996 from jeffhostetler/jeffhostetler/register_rename_src
    hint:   e8f2650052 tag v2.17.0
    hint:   e8f2867228 blob
    hint:   e8f28d537c tree
    hint:   e8f2a35526 blob
    hint:   e8f2bc0c06 commit 2015-05-10 - Documentation: note behavior for multiple remote.url entries
    hint:   e8f2cf6ec0 tree

Now we'll instead show:

    hint:   e8f2650052 tag v2.17.0
    hint:   e8f21caf94 commit 2013-06-24 - bash prompt: print unique detached HEAD abbreviated object name
    hint:   e8f26250fa commit 2017-02-03 - Merge pull request #996 from jeffhostetler/jeffhostetler/register_rename_src
    hint:   e8f2bc0c06 commit 2015-05-10 - Documentation: note behavior for multiple remote.url entries
    hint:   e8f2093055 tree
    hint:   e8f25a3a50 tree
    hint:   e8f28d537c tree
    hint:   e8f2cf6ec0 tree
    hint:   e8f21d02f7 blob
    hint:   e8f21d577c blob
    hint:   e8f2867228 blob
    hint:   e8f2a35526 blob

Since we show the commit data in the output that's nicely aligned once
we sort by object type. The decision to show tags before commits is
pretty arbitrary. I don't want to order by object_type since there
tags come last after blobs, which doesn't make sense if we want to
show the most important things first.

I could display them after commits, but it's much less likely that
we'll display a tag, so if there is one it makes sense to show it
prominently at the top.

A note on the implementation: Derrick rightly pointed out[1] that
we're bending over backwards here in get_short_oid() to first
de-duplicate the list, and then emit it, but could simply do it in one
step.

The reason for that is that oid_array_for_each_unique() doesn't
actually require that the array be sorted by oid_array_sort(), it just
needs to be sorted in some order that guarantees that all objects with
the same ID are adjacent to one another, which (barring a hash
collision, which'll be someone else's problem) the sort_ambiguous()
function does.

I agree that would be simpler for this code, and had forgotten why I
initially wrote it like this[2]. But on further reflection I think
it's better to do more work here just so we're not underhandedly using
the oid-array API where we lie about the list being sorted. That would
break any subsequent use of oid_array_lookup() in subtle ways.

I could get around that by hacking the API itself to support this
use-case and documenting it, which I did as a WIP patch in [3], but I
think it's too much code smell just for this one call site. It's
simpler for the API to just introduce a oid_array_for_each() function
to eagerly spew out the list without sorting or de-duplication, and
then do the de-duplication and sorting in two passes.

1. https://public-inbox.org/git/20180501130318.58251-1-dstolee@microsoft.com/
2. https://public-inbox.org/git/876047ze9v.fsf@evledraar.gmail.com/
3. https://public-inbox.org/git/874ljrzctc.fsf@evledraar.gmail.com/

Helped-by: Derrick Stolee <dstolee@microsoft.com>
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-05-11 14:43:23 +09:00
Jeff King
ee930754d8 apply: clarify "-p" documentation
We're not really removing slashes, but slash-separated path
components. Let's make that more clear.

Reported-by: kelly elton <its.the.doc@gmail.com>
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-05-11 12:34:17 +09:00
Antonio Ospite
f7997e3682 doc: fix config API documentation about config_with_options
In commit dc8441fdb ("config: don't implicitly use gitdir or commondir",
2017-06-14) the function git_config_with_options was renamed to
config_with_options to better reflect the fact that it does not access
the git global config or the repo config by default.

However Documentation/technical/api-config.txt still refers to the
previous name, fix that.

While at it also update the documentation about the extra parameters,
because they too changed since the initial definition.

Signed-off-by: Antonio Ospite <ao2@ao2.it>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-05-11 10:26:33 +09:00
Prathamesh Chavan
b6f7ac8fd5 submodule foreach: document variable '$displaypath'
It was observed that the variable '$displaypath' was accessible but
undocumented. Hence, document it.

Discussed-with: Ramsay Jones <ramsay@ramsayjones.plus.com>
Signed-off-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Prathamesh Chavan <pc44800@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-05-09 12:37:00 +09:00
Prathamesh Chavan
f0fd0dc5c5 submodule foreach: document '$sm_path' instead of '$path'
As using a variable '$path' may be harmful to users due to
capitalization issues, see 64394e3ae9 (git-submodule.sh: Don't
use $path variable in eval_gettext string, 2012-04-17). Adjust
the documentation to advocate for using $sm_path,  which contains
the same value. We still make the 'path' variable available and
document it as a deprecated synonym of 'sm_path'.

Discussed-with: Ramsay Jones <ramsay@ramsayjones.plus.com>
Signed-off-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Prathamesh Chavan <pc44800@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-05-09 12:37:00 +09:00
Ben Peart
85b460305c merge: add merge.renames config setting
Add the ability to control rename detection for merge via a config setting.
This setting behaves the same and defaults to the value of diff.renames but only
applies to merge.

Reviewed-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Helped-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Ben Peart <benpeart@microsoft.com>
Reviewed-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-05-08 16:19:41 +09:00
Ben Peart
a7152e9d22 merge: update documentation for {merge,diff}.renameLimit
Update the documentation to better indicate that the renameLimit setting is
ignored if rename detection is turned off via command line options or config
settings.

Signed-off-by: Ben Peart <benpeart@microsoft.com>
Reviewed-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-05-08 16:19:41 +09:00
Junio C Hamano
ccdcbd54c4 The fifth batch for 2.18
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-05-08 15:59:49 +09:00
Junio C Hamano
96f29521a3 Merge branch 'ma/http-walker-no-partial'
"git http-fetch" (deprecated) had an optional and experimental
"feature" to fetch only commits and/or trees, which nobody used.
This has been removed.

* ma/http-walker-no-partial:
  walker: drop fields of `struct walker` which are always 1
  http-fetch: make `-a` standard behaviour
2018-05-08 15:59:35 +09:00
Junio C Hamano
a56fb3dcc0 Merge branch 'js/colored-push-errors'
Error messages from "git push" can be painted for more visibility.

* js/colored-push-errors:
  config: document the settings to colorize push errors/hints
  push: test to verify that push errors are colored
  push: colorize errors
  color: introduce support for colorizing stderr
2018-05-08 15:59:34 +09:00
Junio C Hamano
df7abe3fef Merge branch 'tz/doc-git-urls-reference'
Doc fix.

* tz/doc-git-urls-reference:
  doc/clone: update caption for GIT URLS cross-reference
2018-05-08 15:59:32 +09:00
Junio C Hamano
6c0110ff06 Merge branch 'hn/sort-ls-remote'
"git ls-remote" learned an option to allow sorting its output based
on the refnames being shown.

* hn/sort-ls-remote:
  ls-remote: create '--sort' option
2018-05-08 15:59:29 +09:00
Junio C Hamano
00bb99c424 Merge branch 'tb/config-default'
"git config --get" learned the "--default" option, to help the
calling script.  Building on top of the tb/config-type topic, the
"git config" learns "--type=color" type.  Taken together, you can
do things like "git config --get foo.color --default blue" and get
the ANSI color sequence for the color given to foo.color variable,
or "blue" if the variable does not exist.

* tb/config-default:
  builtin/config: introduce `color` type specifier
  config.c: introduce 'git_config_color' to parse ANSI colors
  builtin/config: introduce `--default`
2018-05-08 15:59:27 +09:00
Junio C Hamano
e3e042b185 Merge branch 'tb/config-type'
The "git config" command uses separate options e.g. "--int",
"--bool", etc. to specify what type the caller wants the value to
be interpreted as.  A new "--type=<typename>" option has been
introduced, which would make it cleaner to define new types.

* tb/config-type:
  builtin/config.c: support `--type=<type>` as preferred alias for `--<type>`
  builtin/config.c: treat type specifiers singularly
2018-05-08 15:59:26 +09:00
Junio C Hamano
278c251147 Merge branch 'sg/doc-gc-quote-mismatch-fix'
Doc formatting fix.

* sg/doc-gc-quote-mismatch-fix:
  docs/git-gc: fix minor rendering issue
2018-05-08 15:59:26 +09:00
Junio C Hamano
90186fa057 Merge branch 'sb/worktree-remove-opt-force'
"git worktree remove" learned that "-f" is a shorthand for
"--force" option, just like for "git worktree add".

* sb/worktree-remove-opt-force:
  worktree: accept -f as short for --force for removal
2018-05-08 15:59:24 +09:00
Junio C Hamano
535cfa32d7 Merge branch 'ma/double-dashes-in-docs'
Doc formatting updates.

* ma/double-dashes-in-docs:
  git-submodule.txt: quote usage in monospace, drop backslash
  git-[short]log.txt: unify quoted standalone --
  doc: convert [\--] to [--]
  doc: convert \--option to --option
2018-05-08 15:59:24 +09:00
Junio C Hamano
c0bdbac449 Merge branch 'so/glossary-ancestor'
Docfix.

* so/glossary-ancestor:
  glossary: substitute "ancestor" for "direct ancestor" in 'push' description.
2018-05-08 15:59:23 +09:00
Junio C Hamano
1ac0ce4d32 Merge branch 'ls/checkout-encoding'
The new "checkout-encoding" attribute can ask Git to convert the
contents to the specified encoding when checking out to the working
tree (and the other way around when checking in).

* ls/checkout-encoding:
  convert: add round trip check based on 'core.checkRoundtripEncoding'
  convert: add tracing for 'working-tree-encoding' attribute
  convert: check for detectable errors in UTF encodings
  convert: add 'working-tree-encoding' attribute
  utf8: add function to detect a missing UTF-16/32 BOM
  utf8: add function to detect prohibited UTF-16/32 BOM
  utf8: teach same_encoding() alternative UTF encoding names
  strbuf: add a case insensitive starts_with()
  strbuf: add xstrdup_toupper()
  strbuf: remove unnecessary NUL assignment in xstrdup_tolower()
2018-05-08 15:59:22 +09:00
Junio C Hamano
b10edb2df5 Merge branch 'ds/commit-graph'
Precompute and store information necessary for ancestry traversal
in a separate file to optimize graph walking.

* ds/commit-graph:
  commit-graph: implement "--append" option
  commit-graph: build graph from starting commits
  commit-graph: read only from specific pack-indexes
  commit: integrate commit graph with commit parsing
  commit-graph: close under reachability
  commit-graph: add core.commitGraph setting
  commit-graph: implement git commit-graph read
  commit-graph: implement git-commit-graph write
  commit-graph: implement write_commit_graph()
  commit-graph: create git-commit-graph builtin
  graph: add commit graph design document
  commit-graph: add format document
  csum-file: refactor finalize_hashfile() method
  csum-file: rename hashclose() to finalize_hashfile()
2018-05-08 15:59:20 +09:00
Junio C Hamano
0c7ecb7c31 Merge branch 'sb/submodule-move-nested'
Moving a submodule that itself has submodule in it with "git mv"
forgot to make necessary adjustment to the nested sub-submodules;
now the codepath learned to recurse into the submodules.

* sb/submodule-move-nested:
  submodule: fixup nested submodules after moving the submodule
  submodule-config: remove submodule_from_cache
  submodule-config: add repository argument to submodule_from_{name, path}
  submodule-config: allow submodule_free to handle arbitrary repositories
  grep: remove "repo" arg from non-supporting funcs
  submodule.h: drop declaration of connect_work_tree_and_git_dir
2018-05-08 15:59:17 +09:00
Junio C Hamano
9bfa0f9be3 Merge branch 'bw/protocol-v2'
The beginning of the next-gen transfer protocol.

* bw/protocol-v2: (35 commits)
  remote-curl: don't request v2 when pushing
  remote-curl: implement stateless-connect command
  http: eliminate "# service" line when using protocol v2
  http: don't always add Git-Protocol header
  http: allow providing extra headers for http requests
  remote-curl: store the protocol version the server responded with
  remote-curl: create copy of the service name
  pkt-line: add packet_buf_write_len function
  transport-helper: introduce stateless-connect
  transport-helper: refactor process_connect_service
  transport-helper: remove name parameter
  connect: don't request v2 when pushing
  connect: refactor git_connect to only get the protocol version once
  fetch-pack: support shallow requests
  fetch-pack: perform a fetch using v2
  upload-pack: introduce fetch server command
  push: pass ref prefixes when pushing
  fetch: pass ref prefixes when fetching
  ls-remote: pass ref prefixes when requesting a remote's refs
  transport: convert transport_get_remote_refs to take a list of ref prefixes
  ...
2018-05-08 15:59:16 +09:00
brian m. carlson
379805051d Documentation: render revisions correctly under Asciidoctor
When creating a literal block from an indented block without any sort of
delimiters, Asciidoctor strips off all leading whitespace, resulting in
a misrendered chart.  Use an explicit literal block to indicate to
Asciidoctor that we want to keep the leading whitespace.

Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-05-07 12:40:08 +09:00
brian m. carlson
743e63f3ed Documentation: use 8-space tabs with Asciidoctor
Asciidoctor expands tabs at the beginning of a line.  However, it does
not expand them into 8 spaces by default.  Since we use 8-space tabs,
tell Asciidoctor that we want 8 spaces by setting the tabsize attribute.
This ensures that our ASCII art renders properly.

Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-05-07 12:40:08 +09:00
Nguyễn Thái Ngọc Duy
58bd77b66a pack-objects: validation and documentation about unreachable options
These options are added in [1] [2] [3]. All these depend on running
rev-list internally which is normally true since they are always used
with "--all --objects" which implies --revs. But let's keep this
dependency explicit.

While at there, add documentation for them. These are mostly used
internally by git-repack. But it's still good to not chase down the
right commit message to know how they work.

[1] ca11b212eb (let pack-objects do the writing of unreachable objects
    as loose objects - 2008-05-14)
[2] 08cdfb1337 (pack-objects --keep-unreachable - 2007-09-16)
[3] e26a8c4721 (repack: extend --keep-unreachable to loose objects -
    2016-06-13)

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>
2018-05-06 18:49:32 +09:00
Andreas Heiduk
5356a3c354 doc: normalize [--options] to [options] in git-diff
SYNOPSIS and other manuals use [options] but DESCRIPTION
used [--options].

Signed-off-by: Andreas Heiduk <asheiduk@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-05-06 18:38:43 +09:00
Andreas Heiduk
88184c1fc2 doc: add note about shell quoting to revision.txt
Signed-off-by: Andreas Heiduk <asheiduk@gmail.com>
Reviewed-by: Junio C Hamano <gitster@pobox.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-05-06 18:38:43 +09:00
Andreas Heiduk
43d7f2d65a git-svn: remove ''--add-author-from' for 'commit-diff'
The subcommand 'commit-diff' does not support the option
'--add-author-from'.

Signed-off-by: Andreas Heiduk <asheiduk@gmail.com>
Signed-off-by: Eric Wong <e@80x24.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-05-06 18:38:43 +09:00
Andreas Heiduk
97c5d246ec doc: add '-d' and '-o' for 'git push'
Add the missing `-o` shortcut for `--push-option` to the synopsis.
Add the missing `-d` shortcut for `--delete` in the main section.

Signed-off-by: Andreas Heiduk <asheiduk@gmail.com>
Reviewed-by: Martin Ågren <martin.agren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-05-06 18:38:43 +09:00
Andreas Heiduk
47481ff24f doc: clarify ignore rules for git ls-files
Explain that `git ls-files --ignored` requires at least one
of the `--exclude*` options to do its job.

Signed-off-by: Andreas Heiduk <asheiduk@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-05-06 18:38:43 +09:00
Andreas Heiduk
e78e0f728e doc: align 'diff --no-index' in text and synopsis
Make the two '<path>' parameters in DESCRIPTION mandatory and
move the `--options` part to the same place where the other
variants show them. And finally make `--no-index` in SYNOPSIS
as mandatory as in DESCRIPTION.

Signed-off-by: Andreas Heiduk <asheiduk@gmail.com>
Reviewed-by: Martin Ågren <martin.agren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-05-06 18:38:43 +09:00
Andreas Heiduk
9dba84d81c doc: improve formatting in githooks.txt
Typeset commands and similar things with as `git foo` instead of
'git foo' or 'git-foo' and add linkgit to the commands which run
the hooks.

Signed-off-by: Andreas Heiduk <asheiduk@gmail.com>
Reviewed-by: Martin Ågren <martin.agren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-05-06 18:38:43 +09:00
Jonathan Tan
ba95710a3b {fetch,upload}-pack: support filter in protocol v2
The fetch-pack/upload-pack protocol v2 was developed independently of
the filter parameter (used in partial fetches), thus it did not include
support for it. Add support for the filter parameter.

Like in the legacy protocol, the server advertises and supports "filter"
only if uploadpack.allowfilter is configured.

Like in the legacy protocol, the client continues with a warning if
"--filter" is specified, but the server does not advertise it.

Signed-off-by: Jonathan Tan <jonathantanmy@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-05-06 13:17:19 +09:00
Johannes Sixt
7213c28818 git: add -P as a short option for --no-pager
It is possible to configure 'less', the pager, to use an alternate
screen to show the content, for example, by setting LESS=RS in the
environment. When it is closed in this configuration, it switches
back to the original screen, and all content is gone.

It is not uncommon to request that the output remains visible in
the terminal. For this, the option --no-pager can be used. But
it is a bit cumbersome to type, even when command completion is
available. Provide a short option, -P, to make the option more
easily accessible.

Signed-off-by: Johannes Sixt <j6t@kdbg.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-05-04 14:35:38 +09:00
Junio C Hamano
ea44c0a594 Merge branch 'bw/protocol-v2' into jt/partial-clone-proto-v2
The beginning of the next-gen transfer protocol.

* bw/protocol-v2: (35 commits)
  remote-curl: don't request v2 when pushing
  remote-curl: implement stateless-connect command
  http: eliminate "# service" line when using protocol v2
  http: don't always add Git-Protocol header
  http: allow providing extra headers for http requests
  remote-curl: store the protocol version the server responded with
  remote-curl: create copy of the service name
  pkt-line: add packet_buf_write_len function
  transport-helper: introduce stateless-connect
  transport-helper: refactor process_connect_service
  transport-helper: remove name parameter
  connect: don't request v2 when pushing
  connect: refactor git_connect to only get the protocol version once
  fetch-pack: support shallow requests
  fetch-pack: perform a fetch using v2
  upload-pack: introduce fetch server command
  push: pass ref prefixes when pushing
  fetch: pass ref prefixes when fetching
  ls-remote: pass ref prefixes when requesting a remote's refs
  transport: convert transport_get_remote_refs to take a list of ref prefixes
  ...
2018-05-02 18:54:10 +09:00
Nguyễn Thái Ngọc Duy
76a8788c14 doc: keep first level section header in upper case
When formatted as a man page, 1st section header is always in upper
case even if we write it otherwise. Make all 1st section headers
uppercase to keep it close to the final output.

This does affect html since case is kept there, but I still think it's
a good idea to maintain a consistent style for 1st section headers.

Some sections perhaps should become second sections instead, where
case is kept, and for better organization. I will update if anyone has
suggestions about this.

While at there I also make some header more consistent (e.g. examples
vs example) and fix a couple minor things here and there.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-05-02 17:03:33 +09:00
Johannes Schindelin
f42fa470b0 technical/shallow: describe why shallow cannot use replace refs
It is tempting to do away with commit_graft altogether (in the long
haul), now that grafts are deprecated.

However, the shallow feature needs a couple of things that the replace
refs cannot fulfill. Let's point that out in the documentation.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-04-30 11:12:31 +09:00
Johannes Schindelin
8d0d81a9ca technical/shallow: stop referring to grafts
Now that grafts are deprecated, we should start to assume that readers
have no idea what grafts are. So it makes more sense to make the
description of the "shallow" feature stand on its own.

Suggested-by: Eric Sunshine <sunshine@sunshineco.com>
Helped-by: Junio Hamano <gitster@pobox.com>
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-04-30 11:12:31 +09:00
Johannes Schindelin
e2d65c1ea8 filter-branch: stop suggesting to use grafts
The graft file is deprecated now, so let's use replace refs in the example
in filter-branch's man page instead.

Suggested-by: Eric Sunshine <sunshine@sunshineco.com>
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-04-30 11:12:31 +09:00
Johannes Schindelin
fb40429109 replace: introduce --convert-graft-file
This option is intended to help with the transition away from the
now-deprecated graft file.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-04-30 11:12:30 +09:00
Thomas Gummerer
f60a7b763f worktree: teach "add" to check out existing branches
Currently 'git worktree add <path>' creates a new branch named after the
basename of the path by default.  If a branch with that name already
exists, the command refuses to do anything, unless the '--force' option
is given.

However we can do a little better than that, and check the branch out if
it is not checked out anywhere else.  This will help users who just want
to check an existing branch out into a new worktree, and save a few
keystrokes.

As the current behaviour is to simply 'die()' when a branch with the name
of the basename of the path already exists, there are no backwards
compatibility worries here.

We will still 'die()' if the branch is checked out in another worktree,
unless the --force flag is passed.

Helped-by: Eric Sunshine <sunshine@sunshineco.com>
Signed-off-by: Thomas Gummerer <t.gummerer@gmail.com>
Reviewed-by: Eric Sunshine <sunshine@sunshineco.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-04-30 09:06:34 +09:00
Johannes Schindelin
25cff9f109 rebase -i --rebase-merges: add a section to the man page
The --rebase-merges mode is probably not half as intuitive to use as
its inventor hopes, so let's document it some.

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
Johannes Schindelin
7543f6f444 rebase -i: introduce --rebase-merges=[no-]rebase-cousins
When running `git rebase --rebase-merges` non-interactively with an
ancestor of HEAD as <upstream> (or leaving the todo list unmodified),
we would ideally recreate the exact same commits as before the rebase.

However, if there are commits in the commit range <upstream>.. that do not
have <upstream> as direct ancestor (i.e. if `git log <upstream>..` would
show commits that are omitted by `git log --ancestry-path <upstream>..`),
this is currently not the case: we would turn them into commits that have
<upstream> as direct ancestor.

Let's illustrate that with a diagram:

        C
      /   \
A - B - E - F
  \   /
    D

Currently, after running `git rebase -i --rebase-merges B`, the new branch
structure would be (pay particular attention to the commit `D`):

       --- C' --
      /         \
A - B ------ E' - F'
      \    /
        D'

This is not really preserving the branch topology from before! The
reason is that the commit `D` does not have `B` as ancestor, and
therefore it gets rebased onto `B`.

This is unintuitive behavior. Even worse, when recreating branch
structure, most use cases would appear to want cousins *not* to be
rebased onto the new base commit. For example, Git for Windows (the
heaviest user of the Git garden shears, which served as the blueprint
for --rebase-merges) frequently merges branches from `next` early, and
these branches certainly do *not* want to be rebased. In the example
above, the desired outcome would look like this:

       --- C' --
      /         \
A - B ------ E' - F'
  \        /
   -- D' --

Let's introduce the term "cousins" for such commits ("D" in the
example), and let's not rebase them by default. For hypothetical
use cases where cousins *do* need to be rebased, `git rebase
--rebase=merges=rebase-cousins` needs to be used.

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
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
Johannes Schindelin
8f6aed71d2 rebase: introduce the --rebase-merges option
Once upon a time, this here developer thought: wouldn't it be nice if,
say, Git for Windows' patches on top of core Git could be represented as
a thicket of branches, and be rebased on top of core Git in order to
maintain a cherry-pick'able set of patch series?

The original attempt to answer this was: git rebase --preserve-merges.

However, that experiment was never intended as an interactive option,
and it only piggy-backed on git rebase --interactive because that
command's implementation looked already very, very familiar: it was
designed by the same person who designed --preserve-merges: yours truly.

Some time later, some other developer (I am looking at you, Andreas!
;-)) decided that it would be a good idea to allow --preserve-merges to
be combined with --interactive (with caveats!) and the Git maintainer
(well, the interim Git maintainer during Junio's absence, that is)
agreed, and that is when the glamor of the --preserve-merges design
started to fall apart rather quickly and unglamorously.

The reason? In --preserve-merges mode, the parents of a merge commit (or
for that matter, of *any* commit) were not stated explicitly, but were
*implied* by the commit name passed to the `pick` command.

This made it impossible, for example, to reorder commits. Not to mention
to move commits between branches or, deity forbid, to split topic branches
into two.

Alas, these shortcomings also prevented that mode (whose original
purpose was to serve Git for Windows' needs, with the additional hope
that it may be useful to others, too) from serving Git for Windows'
needs.

Five years later, when it became really untenable to have one unwieldy,
big hodge-podge patch series of partly related, partly unrelated patches
in Git for Windows that was rebased onto core Git's tags from time to
time (earning the undeserved wrath of the developer of the ill-fated
git-remote-hg series that first obsoleted Git for Windows' competing
approach, only to be abandoned without maintainer later) was really
untenable, the "Git garden shears" were born [*1*/*2*]: a script,
piggy-backing on top of the interactive rebase, that would first
determine the branch topology of the patches to be rebased, create a
pseudo todo list for further editing, transform the result into a real
todo list (making heavy use of the `exec` command to "implement" the
missing todo list commands) and finally recreate the patch series on
top of the new base commit.

That was in 2013. And it took about three weeks to come up with the
design and implement it as an out-of-tree script. Needless to say, the
implementation needed quite a few years to stabilize, all the while the
design itself proved itself sound.

With this patch, the goodness of the Git garden shears comes to `git
rebase -i` itself. Passing the `--rebase-merges` option will generate
a todo list that can be understood readily, and where it is obvious
how to reorder commits. New branches can be introduced by inserting
`label` commands and calling `merge <label>`. And once this mode will
have become stable and universally accepted, we can deprecate the design
mistake that was `--preserve-merges`.

Link *1*:
https://github.com/msysgit/msysgit/blob/master/share/msysGit/shears.sh
Link *2*:
https://github.com/git-for-windows/build-extra/blob/master/shears.sh

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
Junio C Hamano
1f1cddd558 The fourth batch for 2.18
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-04-25 13:44:42 +09:00
Junio C Hamano
bedb10c788 Merge branch 'tg/use-git-contacts'
Doc update.

* tg/use-git-contacts:
  SubmittingPatches: mention the git contacts command
2018-04-25 13:29:05 +09:00
Junio C Hamano
89e5aa3dff Merge branch 'sb/filenames-with-dashes'
Rename bunch of source files to more consistently use dashes
instead of underscores to connect words.

* sb/filenames-with-dashes:
  replace_object.c: rename to use dash in file name
  sha1_file.c: rename to use dash in file name
  sha1_name.c: rename to use dash in file name
  exec_cmd: rename to use dash in file name
  unicode_width.h: rename to use dash in file name
  write_or_die.c: rename to use dashes in file name
2018-04-25 13:29:05 +09:00
Junio C Hamano
6b747fc723 Merge branch 'es/worktree-docs'
Doc updates.

* es/worktree-docs:
  git-worktree.txt: unify command-line prompt in example blocks
  git-worktree.txt: recommend 'git worktree remove' over manual deletion
2018-04-25 13:29:02 +09:00
Junio C Hamano
cb6462fe74 Merge branch 'en/doc-typoes'
Docfix.

* en/doc-typoes:
  Documentation: normalize spelling of 'normalised'
  Documentation: fix several one-character-off spelling errors
2018-04-25 13:28:58 +09:00
Junio C Hamano
f8fbcd6e01 Merge branch 'mn/send-email-credential-doc'
Doc update.

* mn/send-email-credential-doc:
  send-email: simplify Gmail example in the documentation
2018-04-25 13:28:57 +09:00
Junio C Hamano
f2d5e07667 Merge branch 'ak/bisect-doc-typofix'
Docfix.

* ak/bisect-doc-typofix:
  Documentation/git-bisect.txt: git bisect term → git bisect terms
2018-04-25 13:28:56 +09:00
Junio C Hamano
850e925752 Merge branch 'pw/rebase-signoff'
"git rebase" has learned to honor "--signoff" option when using
backends other than "am" (but not "--preserve-merges").

* pw/rebase-signoff:
  rebase --keep-empty: always use interactive rebase
  rebase -p: error out if --signoff is given
  rebase: extend --signoff support
2018-04-25 13:28:51 +09:00
Brandon Williams
5e3548ef16 fetch: send server options when using protocol v2
Teach fetch to optionally accept server options by specifying them on
the cmdline via '-o' or '--server-option'.  These server options are
sent to the remote end when performing a fetch communicating using
protocol version 2.

If communicating using a protocol other than v2 the provided options are
ignored and not sent to the remote end.

Signed-off-by: Brandon Williams <bmwill@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-04-24 11:24:40 +09:00