Commit Graph

24 Commits

Author SHA1 Message Date
Elijah Newren
f394e093df treewide: be explicit about dependence on gettext.h
Dozens of files made use of gettext functions, without explicitly
including gettext.h.  This made it more difficult to find which files
could remove a dependence on cache.h.  Make C files explicitly include
gettext.h if they are using it.

However, while compat/fsmonitor/fsm-ipc-darwin.c should also gain an
include of gettext.h, it was left out to avoid conflicting with an
in-flight topic.

Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-03-21 10:56:51 -07:00
Junio C Hamano
7b9b634ca5 Merge branch 'ab/doc-synopsis-and-cmd-usage'
The short-help text shown by "git cmd -h" and the synopsis text
shown at the beginning of "git help cmd" have been made more
consistent.

* ab/doc-synopsis-and-cmd-usage: (34 commits)
  tests: assert consistent whitespace in -h output
  tests: start asserting that *.txt SYNOPSIS matches -h output
  doc txt & -h consistency: make "worktree" consistent
  worktree: define subcommand -h in terms of command -h
  reflog doc: list real subcommands up-front
  doc txt & -h consistency: make "commit" consistent
  doc txt & -h consistency: make "diff-tree" consistent
  doc txt & -h consistency: use "[<label>...]" for "zero or more"
  doc txt & -h consistency: make "annotate" consistent
  doc txt & -h consistency: make "stash" consistent
  doc txt & -h consistency: add missing options
  doc txt & -h consistency: use "git foo" form, not "git-foo"
  doc txt & -h consistency: make "bundle" consistent
  doc txt & -h consistency: make "read-tree" consistent
  doc txt & -h consistency: make "rerere" consistent
  doc txt & -h consistency: add missing options and labels
  doc txt & -h consistency: make output order consistent
  doc txt & -h consistency: add or fix optional "--" syntax
  doc txt & -h consistency: fix mismatching labels
  doc SYNOPSIS & -h: use "-" to separate words in labels, not "_"
  ...
2022-10-28 11:26:54 -07:00
Junio C Hamano
4a48c7d25f Merge branch 'jc/symbolic-ref-no-recurse'
After checking out a "branch" that is a symbolic-ref that points at
another branch, "git symbolic-ref HEAD" reports the underlying
branch, not the symbolic-ref the user gave checkout as argument.
The command learned the "--no-recurse" option to stop after
dereferencing a symbolic-ref only once.

* jc/symbolic-ref-no-recurse:
  symbolic-ref: teach "--[no-]recurse" option
2022-10-21 11:37:28 -07:00
Ævar Arnfjörð Bjarmason
8c9e292dc0 doc txt & -h consistency: add missing options and labels
Fix various issues of SYNOPSIS and -h output syntax where:

 * Options such as --force were missing entirely
 * ...or the short option, such as -f

 * We said "opts" or "options", but could instead enumerate
   the (small) set of supported options

 * Options that were missing entirely (ls-remote's --sort=<key>)

   As we can specify "--sort" multiple times (it's backed by a
   string-list" it should really be "[(--sort=<key>)...]", which is
   what "git for-each-ref" lists it as, but let's leave that issue for
   a subsequent cleanup, and stop at making these consistent. Other
   "ref-filter.h" users share the same issue, e.g. "git-branch.txt".

 * For "verify-tag" and "verify-commit" we were missing the "--raw"
   option.

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2022-10-13 09:32:56 -07:00
Junio C Hamano
b77e3bdd97 symbolic-ref: teach "--[no-]recurse" option
Suppose you are managing many maintenance tracks in your project,
and some of the more recent ones are maint-2.36 and maint-2.37.
Further imagine that your project recently tagged the official 2.38
release, which means you would need to start maint-2.38 track soon,
by doing:

  $ git checkout -b maint-2.38 v2.38.0^0
  $ git branch --list 'maint-2.3[6-9]'
  * maint-2.38
    maint-2.36
    maint-2.37

So far, so good.  But it also is reasonable to want not to have to
worry about which maintenance track is the latest, by pointing a
more generic-sounding 'maint' branch at it, by doing:

  $ git symbolic-ref refs/heads/maint refs/heads/maint-2.38

which would allow you to say "whichever it is, check out the latest
maintenance track", by doing:

  $ git checkout maint
  $ git branch --show-current
  maint-2.38

It is arguably better to say that we are on 'maint-2.38' rather than
on 'maint', and "git merge/pull" would record "into maint-2.38" and
not "into maint", so I think what we have is a good behaviour.

One thing that is slightly irritating, however, is that I do not
think there is a good way (other than "cat .git/HEAD") to learn that
you checked out 'maint' to get into that state.  Just like the output
of "git branch --show-current" shows above, "git symbolic-ref HEAD"
would report 'refs/heads/maint-2.38', bypassing the intermediate
symbolic ref at 'refs/heads/maint' that is pointed at by HEAD.

The internal resolve_ref() API already has the necessary support for
stopping after resolving a single level of a symbolic-ref, and we
can expose it by adding a "--[no-]recurse" option to the command.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2022-10-09 12:31:24 -07:00
Linus Torvalds
04ede97211 symbolic-ref: refuse to set syntactically invalid target
You can feed absolute garbage to symbolic-ref as a target like:

  git symbolic-ref HEAD refs/heads/foo..bar

While this doesn't technically break the repo entirely (our "is it a git
directory" detector looks only for "refs/" at the start), we would never
resolve such a ref, as the ".." is invalid within a refname.

Let's flag these as invalid at creation time to help the caller realize
that what they're asking for is bogus.

A few notes:

  - We use REFNAME_ALLOW_ONELEVEL here, which lets:

     git update-ref refs/heads/foo FETCH_HEAD

    continue to work. It's unclear whether anybody wants to do something
    so odd, but it does work now, so this is erring on the conservative
    side. There's a test to make sure we didn't accidentally break this,
    but don't take that test as an endorsement that it's a good idea, or
    something we might not change in the future.

  - The test in t4202-log.sh checks how we handle such an invalid ref on
    the reading side, so it has to be updated to touch the HEAD file
    directly.

  - We need to keep our HEAD-specific check for "does it start with
    refs/". The ALLOW_ONELEVEL flag means we won't be enforcing that for
    other refs, but HEAD is special here because of the checks in
    validate_headref().

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2022-08-01 12:17:13 -07:00
Andrzej Hunt
f63b88867a symbolic-ref: don't leak shortened refname in check_symref()
shorten_unambiguous_ref() returns an allocated string. We have to
track it separately from the const refname.

This leak has existed since:
9ab55daa55 (git symbolic-ref --delete $symref, 2012-10-21)

This leak was found when running t0001 with LSAN, see also LSAN output
below:

Direct leak of 19 byte(s) in 1 object(s) allocated from:
    #0 0x486514 in strdup /home/abuild/rpmbuild/BUILD/llvm-11.0.0.src/build/../projects/compiler-rt/lib/asan/asan_interceptors.cpp:452:3
    #1 0x9ab048 in xstrdup /home/ahunt/oss-fuzz/git/wrapper.c:29:14
    #2 0x8b452f in refs_shorten_unambiguous_ref /home/ahunt/oss-fuzz/git/refs.c
    #3 0x8b47e8 in shorten_unambiguous_ref /home/ahunt/oss-fuzz/git/refs.c:1287:9
    #4 0x679fce in check_symref /home/ahunt/oss-fuzz/git/builtin/symbolic-ref.c:28:14
    #5 0x679ad8 in cmd_symbolic_ref /home/ahunt/oss-fuzz/git/builtin/symbolic-ref.c:70:9
    #6 0x4cd60d in run_builtin /home/ahunt/oss-fuzz/git/git.c:453:11
    #7 0x4cb2da in handle_builtin /home/ahunt/oss-fuzz/git/git.c:704:3
    #8 0x4ccc37 in run_argv /home/ahunt/oss-fuzz/git/git.c:771:4
    #9 0x4cac29 in cmd_main /home/ahunt/oss-fuzz/git/git.c:902:19
    #10 0x69cc6e in main /home/ahunt/oss-fuzz/git/common-main.c:52:11
    #11 0x7f98388a4349 in __libc_start_main (/lib64/libc.so.6+0x24349)

Signed-off-by: Andrzej Hunt <ajrhunt@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-03-14 15:57:59 -07:00
Michael Haggerty
91774afcc3 refs: rename constant REF_NODEREF to REF_NO_DEREF
Even after working with this code for years, I still see this constant
name as "ref node ref". Rename it to make it's meaning clearer.

Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-11-06 10:31:08 +09:00
René Scharfe
744c040b19 refs: pass NULL to resolve_ref_unsafe() if hash is not needed
This allows us to get rid of some write-only variables, among them seven
SHA1 buffers.

Signed-off-by: Rene Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-09-24 10:18:21 +09:00
Brandon Williams
b2141fc1d2 config: don't include config.h by default
Stop including config.h by default in cache.h.  Instead only include
config.h in those files which require use of the config system.

Signed-off-by: Brandon Williams <bmwill@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-06-15 12:56:22 -07:00
Kyle Meyer
755b49ae96 delete_ref: accept a reflog message argument
When the current branch is renamed with 'git branch -m/-M' or deleted
with 'git update-ref -m<msg> -d', the event is recorded in HEAD's log
with an empty message.  In preparation for adding a more meaningful
message to HEAD's log in these cases, update delete_ref() to take a
message argument and pass it along to ref_transaction_delete().
Modify all callers to pass NULL for the new message argument; no
change in behavior is intended.

Note that this is relevant for HEAD's log but not for the deleted
ref's log, which is currently deleted along with the ref.  Even if it
were not, an entry for the deletion wouldn't be present in the deleted
ref's log.  files_transaction_commit() writes to the log if
REF_NEEDS_COMMIT or REF_LOG_ONLY are set, but lock_ref_for_update()
doesn't set REF_NEEDS_COMMIT for the deleted ref because REF_DELETING
is set.  In contrast, the update for HEAD has REF_LOG_ONLY set by
split_head_update(), resulting in the deletion being logged.

Signed-off-by: Kyle Meyer <kyle@kyleam.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-02-20 22:04:47 -08:00
Junio C Hamano
12cfa792b8 symbolic-ref -d: do not allow removal of HEAD
If you delete the symbolic-ref HEAD from a repository, Git no longer
considers the repository valid, and even "git symbolic-ref HEAD
refs/heads/master" would not be able to recover from that state
(although "git init" can, but that is a sure sign that you are
talking about a "broken" repository).

In the spirit similar to afe5d3d5 ("symbolic ref: refuse non-ref
targets in HEAD", 2009-01-29), forbid removal of HEAD to avoid
corrupting a repository.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-09-02 09:01:38 -07:00
Jeff King
3e4068ed90 symbolic-ref: propagate error code from create_symref()
If create_symref() fails, git-symbolic-ref will still exit
with code 0, and our caller has no idea that the command did
nothing.

This appears to have been broken since the beginning of time
(e.g., it is not a regression where create_symref() stopped
calling die() or something similar).

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-12-21 12:03:03 -08:00
Alex Henrie
9c9b4f2f8b standardize usage info string format
This patch puts the usage info strings that were not already in docopt-
like format into docopt-like format, which will be a litle easier for
end users and a lot easier for translators. Changes include:

- Placing angle brackets around fill-in-the-blank parameters
- Putting dashes in multiword parameter names
- Adding spaces to [-f|--foobar] to make [-f | --foobar]
- Replacing <foobar>* with [<foobar>...]

Signed-off-by: Alex Henrie <alexhenrie24@gmail.com>
Reviewed-by: Matthieu Moy <Matthieu.Moy@imag.fr>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-01-14 09:32:04 -08:00
Ronnie Sahlberg
7695d118e5 refs.c: change resolve_ref_unsafe reading argument to be a flags field
resolve_ref_unsafe takes a boolean argument for reading (a nonexistent ref
resolves successfully for writing but not for reading).  Change this to be
a flags field instead, and pass the new constant RESOLVE_REF_READING when
we want this behaviour.

While at it, swap two of the arguments in the function to put output
arguments at the end.  As a nice side effect, this ensures that we can
catch callers that were unaware of the new API so they can be audited.

Give the wrapper functions resolve_refdup and read_ref_full the same
treatment for consistency.

Signed-off-by: Ronnie Sahlberg <sahlberg@google.com>
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-10-15 10:47:24 -07:00
Christian Couder
5955654823 replace {pre,suf}fixcmp() with {starts,ends}_with()
Leaving only the function definitions and declarations so that any
new topic in flight can still make use of the old functions, replace
existing uses of the prefixcmp() and suffixcmp() with new API
functions.

The change can be recreated by mechanically applying this:

    $ git grep -l -e prefixcmp -e suffixcmp -- \*.c |
      grep -v strbuf\\.c |
      xargs perl -pi -e '
        s|!prefixcmp\(|starts_with\(|g;
        s|prefixcmp\(|!starts_with\(|g;
        s|!suffixcmp\(|ends_with\(|g;
        s|suffixcmp\(|!ends_with\(|g;
      '

on the result of preparatory changes in this series.

Signed-off-by: Christian Couder <chriscool@tuxfamily.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-12-05 14:13:21 -08:00
Junio C Hamano
c01499ef69 C: have space around && and || operators
Correct all hits from

    git grep -e '\(&&\|||\)[^ ]' -e '[^	 ]\(&&\|||\)' -- '*.c'

i.e. && or || operators that are followed by anything but a SP,
or that follow something other than a SP or a HT, so that these
operators have a SP around it when necessary.

We usually refrain from making this kind of a tree-wide change in
order to avoid unnecessary conflicts with other "real work" patches,
but in this case, the end result does not have a potentially
cumbersome tree-wide impact, while this is a tree-wide cleanup.

Fixes to compat/regex/regcomp.c and xdiff/xemit.c are to replace a
HT immediately after && with a SP.

This is based on Felipe's patch to bultin/symbolic-ref.c; I did all
the finding out what other files in the whole tree need to be fixed
and did the fix and also the log message while reviewing that single
liner, so any screw-ups in this version are mine.

Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-10-16 10:26:39 -07:00
Johan Herland
9ab55daa55 git symbolic-ref --delete $symref
Teach symbolic-ref to delete symrefs by adding the -d/--delete option to
git-symbolic-ref. Both proper and dangling symrefs are deleted by this
option, but other refs - or anything else that is not a symref - is not.

The symref deletion is performed by first verifying that we are given a
proper symref, and then invoking delete_ref() on it with the REF_NODEREF
flag.

Signed-off-by: Johan Herland <johan@herland.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-10-21 12:17:38 -07:00
Nguyễn Thái Ngọc Duy
b10bf3fa11 i18n: symbolic-ref: mark parseopt strings for translation
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-08-22 10:58:28 -07:00
Jan Krüger
42b00599be symbolic-ref --short: abbreviate the output unambiguously
It can be helpful to resolve a symbolic ref and output the result in a
shortened form, such as for use in shell prompts.  Add a "--short" option
to do so.

Signed-off-by: Jan Krüger <jk@jk.gs>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-02-27 15:58:36 -08:00
Nguyễn Thái Ngọc Duy
8cad4744ee Rename resolve_ref() to resolve_ref_unsafe()
resolve_ref() may return a pointer to a shared buffer and can be
overwritten by the next resolve_ref() calls. Callers need to
pay attention, not to keep the pointer when the next call happens.

Rename with "_unsafe" suffix to warn developers (or reviewers) before
introducing new call sites.

This patch is generated using the following command

git grep -l 'resolve_ref(' -- '*.[ch]'|xargs sed -i 's/resolve_ref(/resolve_ref_unsafe(/g'

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-12-13 09:39:46 -08:00
Jonathan Nieder
8c83968385 Describe various forms of "be quiet" using OPT__QUIET
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-11-15 10:04:56 -08:00
René Scharfe
d52ee6e613 add description parameter to OPT__QUIET
Allows better help text to be defined than "be quiet".  Also make use
of the macro in a place that already had a different description.  No
object code changes intended.

Signed-off-by: Rene Scharfe <rene.scharfe@lsrfire.ath.cx>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-11-15 09:58:13 -08:00
Linus Torvalds
81b50f3ce4 Move 'builtin-*' into a 'builtin/' subdirectory
This shrinks the top-level directory a bit, and makes it much more
pleasant to use auto-completion on the thing. Instead of

	[torvalds@nehalem git]$ em buil<tab>
	Display all 180 possibilities? (y or n)
	[torvalds@nehalem git]$ em builtin-sh
	builtin-shortlog.c     builtin-show-branch.c  builtin-show-ref.c
	builtin-shortlog.o     builtin-show-branch.o  builtin-show-ref.o
	[torvalds@nehalem git]$ em builtin-shor<tab>
	builtin-shortlog.c  builtin-shortlog.o
	[torvalds@nehalem git]$ em builtin-shortlog.c

you get

	[torvalds@nehalem git]$ em buil<tab>		[type]
	builtin/   builtin.h
	[torvalds@nehalem git]$ em builtin		[auto-completes to]
	[torvalds@nehalem git]$ em builtin/sh<tab>	[type]
	shortlog.c     shortlog.o     show-branch.c  show-branch.o  show-ref.c     show-ref.o
	[torvalds@nehalem git]$ em builtin/sho		[auto-completes to]
	[torvalds@nehalem git]$ em builtin/shor<tab>	[type]
	shortlog.c  shortlog.o
	[torvalds@nehalem git]$ em builtin/shortlog.c

which doesn't seem all that different, but not having that annoying
break in "Display all 180 possibilities?" is quite a relief.

NOTE! If you do this in a clean tree (no object files etc), or using an
editor that has auto-completion rules that ignores '*.o' files, you
won't see that annoying 'Display all 180 possibilities?' message - it
will just show the choices instead.  I think bash has some cut-off
around 100 choices or something.

So the reason I see this is that I'm using an odd editory, and thus
don't have the rules to cut down on auto-completion.  But you can
simulate that by using 'ls' instead, or something similar.

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-02-22 14:29:41 -08:00