Commit Graph

2564 Commits

Author SHA1 Message Date
Junio C Hamano
cbfbf443b0 Merge branch 'mg/prompt-describe-tags'
The command line prompt (in contrib/) learned a new 'tag' style
that can be specified with GIT_PS1_DESCRIBE_STYLE, to describe a
detached HEAD with "git describe --tags".

* mg/prompt-describe-tags:
  git-prompt: add a describe style for any tags
2017-03-21 15:07:17 -07:00
Michael J Gruber
9f0b4dd0b8 git-prompt: add a describe style for any tags
git-prompt has various describe styles, among them "describe" (by
annotated tags) and "default" (by exact match with any tag).

Add a mode "tag" that describes by any tag, annotated or not.

Signed-off-by: Michael J Gruber <git@drmicha.warpmail.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-03-15 13:19:41 -07:00
Junio C Hamano
271513cd54 Merge branch 'ss/remote-bzr-hg-placeholder-wo-python'
There is no need for Python only to give a few messages to the
standard error stream, but we somehow did.

* ss/remote-bzr-hg-placeholder-wo-python:
  contrib: git-remote-{bzr,hg} placeholders don't need Python
2017-03-12 23:21:34 -07:00
Junio C Hamano
fc32293502 Merge branch 'rs/strbuf-add-real-path'
An helper function to make it easier to append the result from
real_path() to a strbuf has been added.

* rs/strbuf-add-real-path:
  strbuf: add strbuf_add_real_path()
  cocci: use ALLOC_ARRAY
2017-03-10 13:24:23 -08:00
Sebastian Schuberth
b8686c661d contrib: git-remote-{bzr,hg} placeholders don't need Python
It does not make sense for these placeholder scripts to depend on Python
just because the real scripts do. At the example of Git for Windows, we
would not even be able to see those warnings as it does not ship with
Python. So just use plain shell scripts instead.

Signed-off-by: Sebastian Schuberth <sschuberth@gmail.com>
Reviewed-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-03-03 11:09:34 -08:00
Junio C Hamano
fdeb89fdeb Merge branch 'sg/completion'
Clean-up and updates to command line completion (in contrib/).

* sg/completion: (22 commits)
  completion: restore removed line continuating backslash
  completion: cache the path to the repository
  completion: extract repository discovery from __gitdir()
  completion: don't guard git executions with __gitdir()
  completion: consolidate silencing errors from git commands
  completion: don't use __gitdir() for git commands
  completion: respect 'git -C <path>'
  rev-parse: add '--absolute-git-dir' option
  completion: fix completion after 'git -C <path>'
  completion: don't offer commands when 'git --opt' needs an argument
  completion: list short refs from a remote given as a URL
  completion: don't list 'HEAD' when trying refs completion outside of a repo
  completion: list refs from remote when remote's name matches a directory
  completion: respect 'git --git-dir=<path>' when listing remote refs
  completion: fix most spots not respecting 'git --git-dir=<path>'
  completion: ensure that the repository path given on the command line exists
  completion tests: add tests for the __git_refs() helper function
  completion tests: check __gitdir()'s output in the error cases
  completion tests: consolidate getting path of current working directory
  completion tests: make the $cur variable local to the test helper functions
  ...
2017-02-27 13:57:14 -08:00
Junio C Hamano
1b324988ac Merge branch 'jk/describe-omit-some-refs'
"git describe" and "git name-rev" have been taught to take more
than one refname patterns to restrict the set of refs to base their
naming output on, and also learned to take negative patterns to
name refs not to be used for naming via their "--exclude" option.

* jk/describe-omit-some-refs:
  describe: teach describe negative pattern matches
  describe: teach --match to accept multiple patterns
  name-rev: add support to exclude refs by pattern match
  name-rev: extend --refs to accept multiple patterns
  doc: add documentation for OPT_STRING_LIST
2017-02-27 13:57:11 -08:00
René Scharfe
33ad9ddd0b strbuf: add strbuf_add_real_path()
Add a function for appending the canonized absolute pathname of a given
path to a strbuf.  It keeps the existing contents intact, as expected of
a function of the strbuf_add() family, while avoiding copying the result
if the given strbuf is empty.  It's more consistent with the rest of the
strbuf API than strbuf_realpath(), which it's wrapping.

Also add a semantic patch demonstrating its intended usage and apply it
to the current tree.  Using strbuf_add_real_path() instead of calling
strbuf_addstr() and real_path() avoids an extra copy to a static buffer.

Signed-off-by: Rene Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-02-27 11:02:06 -08:00
René Scharfe
3f64699ffd cocci: use ALLOC_ARRAY
Add a semantic patch for using ALLOC_ARRAY to allocate arrays and apply
the transformation on the current source tree.  The macro checks for
multiplication overflow and infers the element size automatically; the
result is shorter and safer code.

Signed-off-by: Rene Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-02-27 11:02:05 -08:00
Junio C Hamano
0078a75985 Merge branch 'rs/cocci-check-free-only-null'
A new coccinelle rule that catches a check of !pointer before the
pointer is free(3)d, which most likely is a bug.

* rs/cocci-check-free-only-null:
  cocci: detect useless free(3) calls
2017-02-16 14:45:13 -08:00
Junio C Hamano
3f4ccb5a57 Merge branch 'cw/completion'
More command line completion (in contrib/) for recent additions.

* cw/completion:
  completion: recognize more long-options
  completion: teach remote subcommands to complete options
  completion: teach replace to complete options
  completion: teach ls-remote to complete options
  completion: improve bash completion for git-add
  completion: add subcommand completion for rerere
  completion: teach submodule subcommands to complete options
2017-02-15 12:54:19 -08:00
Junio C Hamano
cbf1860d73 Merge branch 'rs/swap'
Code clean-up.

* rs/swap:
  graph: use SWAP macro
  diff: use SWAP macro
  use SWAP macro
  apply: use SWAP macro
  add SWAP macro
2017-02-15 12:54:19 -08:00
SZEDER Gábor
3ba042017a completion: restore removed line continuating backslash
Recent commit 1cd23e9e0 (completion: don't use __gitdir() for git
commands, 2017-02-03) rewrapped a couple of long lines, and while
doing so it inadvertently removed a '\' from the end of a line, thus
breaking completion for 'git config remote.name.push <TAB>'.

Signed-off-by: SZEDER Gábor <szeder.dev@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-02-13 12:46:13 -08:00
René Scharfe
ec6cd14c7a cocci: detect useless free(3) calls
Add a semantic patch for removing checks that cause free(3) to only be
called with a NULL pointer, as that must be a programming mistake.

Signed-off-by: Rene Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-02-11 11:29:12 -08:00
Junio C Hamano
f7490fdf85 Merge branch 'ew/complete-svn-authorship-options'
Correct command line completion (in contrib/) on "git svn"

* ew/complete-svn-authorship-options:
  completion: fix git svn authorship switches
2017-02-10 12:52:24 -08:00
Junio C Hamano
8e7c1f3240 Merge branch 'bw/push-submodule-only'
Add missing documentation update to a recent topic.

* bw/push-submodule-only:
  completion: add completion for --recurse-submodules=only
  doc: add doc for git-push --recurse-submodules=only
2017-02-10 12:52:23 -08:00
Eric Wong
2cbad17642 completion: fix git svn authorship switches
--add-author-from and --use-log-author are for "git svn dcommit",
not "git svn (init|clone)"

Signed-off-by: Eric Wong <e@80x24.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-02-06 10:40:39 -08:00
Cornelius Weig
f483a0aa2a completion: recognize more long-options
Command completion only recognizes a subset of the available options for
the various git commands. The set of recognized options needs to balance
between having all useful options and to not clutter the terminal.

This commit adds all long-options that are mentioned in the man-page
synopsis of the respective git command. Possibly dangerous options are
not included in this set, to avoid accidental data loss. The added
options are:

 - apply: --recount --directory=
 - archive: --output
 - branch: --column --no-column --sort= --points-at
 - clone: --no-single-branch --shallow-submodules
 - commit: --patch --short --date --allow-empty
 - describe: --first-parent
 - fetch, pull: --unshallow --update-shallow
 - fsck: --name-objects
 - grep: --break --heading --show-function --function-context
         --untracked --no-index
 - mergetool: --prompt --no-prompt
 - reset: --keep
 - revert: --strategy= --strategy-option=
 - shortlog: --email
 - tag: --merged --no-merged --create-reflog

Signed-off-by: Cornelius Weig <cornelius.weig@tngtech.com>
Helped-by: Johannes Sixt <j6t@kdbg.org>
Reviewed-by: SZEDER Gábor <szeder.dev@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-02-03 22:25:46 -08:00
Cornelius Weig
cac84960ea completion: teach remote subcommands to complete options
Git-remote needs to complete remote names, its subcommands, and options
thereof. In addition to the existing subcommand and remote name
completion, do also complete the options

 - add: --track --master --fetch --tags --no-tags --mirror=
 - set-url: --push --add --delete
 - get-url: --push --all
 - prune: --dry-run

Signed-off-by: Cornelius Weig <cornelius.weig@tngtech.com>
Reviewed-by: SZEDER Gábor <szeder.dev@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-02-03 22:25:46 -08:00
Cornelius Weig
188fba1172 completion: teach replace to complete options
Git-replace needs to complete references and its own options. In
addition to the existing references completions, do also complete the
options --edit --graft --format= --list --delete.

Signed-off-by: Cornelius Weig <cornelius.weig@tngtech.com>
Reviewed-by: SZEDER Gábor <szeder.dev@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-02-03 22:25:46 -08:00
Cornelius Weig
2c0f3a5314 completion: teach ls-remote to complete options
ls-remote needs to complete remote names and its own options. In
addition to the existing remote name completions, do also complete
the options --heads, --tags, --refs, --get-url, and --symref.

Signed-off-by: Cornelius Weig <cornelius.weig@tngtech.com>
Reviewed-by: SZEDER Gábor <szeder.dev@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-02-03 22:25:46 -08:00
Cornelius Weig
bd9ab9dfc0 completion: improve bash completion for git-add
Command completion for git-add did not recognize some long-options.
This commits adds completion for all long-options that are mentioned in
the man-page synopsis. In addition, if the user specified `--update` or
`-u`, path completion will only suggest modified tracked files.

Signed-off-by: Cornelius Weig <cornelius.weig@tngtech.com>
Reviewed-by: SZEDER Gábor <szeder.dev@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-02-03 22:25:46 -08:00
Cornelius Weig
e24a256b59 completion: add subcommand completion for rerere
Managing recorded resolutions requires command-line usage of git-rerere.
Added subcommand completion for rerere and path completion for its
subcommand forget.

Signed-off-by: Cornelius Weig <cornelius.weig@tngtech.com>
Reviewed-by: SZEDER Gábor <szeder.dev@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-02-03 22:25:46 -08:00
Cornelius Weig
65d5a1e0a5 completion: teach submodule subcommands to complete options
Each submodule subcommand has specific long-options. Therefore, teach
bash completion to support option completion based on the current
subcommand. All long-options that are mentioned in the man-page synopsis
are added.

Signed-off-by: Cornelius Weig <cornelius.weig@tngtech.com>
Reviewed-by: SZEDER Gábor <szeder.dev@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-02-03 22:25:46 -08:00
SZEDER Gábor
fad9484f0a completion: cache the path to the repository
After the previous changes in this series there are only a handful of
$(__gitdir) command substitutions left in the completion script, but
there is still a bit of room for improvements:

  1. The command substitution involves the forking of a subshell,
     which has considerable overhead on some platforms.

  2. There are a few cases, where this command substitution is
     executed more than once during a single completion, which means
     multiple subshells and possibly multiple 'git rev-parse'
     executions.  __gitdir() is invoked twice while completing refs
     for e.g. 'git log', 'git rebase', 'gitk', or while completing
     remote refs for 'git fetch' or 'git push'.

Both of these points can be addressed by using the
__git_find_repo_path() helper function introduced in the previous
commit:

  1. __git_find_repo_path() stores the path to the repository in a
     variable instead of printing it, so the command substitution
     around the function can be avoided.  Or rather: the command
     substitution should be avoided to make the new value of the
     variable set inside the function visible to the callers.
     (Yes, there is now a command substitution inside
     __git_find_repo_path() around each 'git rev-parse', but that's
     executed only if necessary, and only once per completion, see
     point 2. below.)

  2. $__git_repo_path, the variable holding the path to the
     repository, is declared local in the toplevel completion
     functions __git_main() and __gitk_main().  Thus, once set, the
     path is visible in all completion functions, including all
     subsequent calls to __git_find_repo_path(), meaning that they
     wouldn't have to re-discover the path to the repository.

So call __git_find_repo_path() and use $__git_repo_path instead of the
$(__gitdir) command substitution to access paths in the .git
directory.  Turn tests checking __gitdir()'s repository discovery into
tests of __git_find_repo_path() such that only the tested function
changes but the expected results don't, ensuring that repo discovery
keeps working as it did before.

As __gitdir() is not used anymore in the completion script, mark it as
deprecated and direct users' attention to __git_find_repo_path() and
$__git_repo_path.  Yet keep four __gitdir() tests to ensure that it
handles success and failure of __git_find_repo_path() and that it
still handles its optional remote argument, because users' custom
completion scriptlets might depend on it.

Signed-off-by: SZEDER Gábor <szeder.dev@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-02-03 22:18:41 -08:00
SZEDER Gábor
beb6ee7163 completion: extract repository discovery from __gitdir()
To prepare for caching the path to the repository in the following
commit, extract the repository discovering part of __gitdir() into the
__git_find_repo_path() helper function, which stores the found path in
the $__git_repo_path variable instead of printing it.  Make __gitdir()
a wrapper around this new function.  Declare $__git_repo_path local in
the toplevel completion functions __git_main() and __gitk_main() to
ensure that it never leaks into the environment and influences
subsequent completions (though this isn't necessary right now, as
__gitdir() is still only executed in subshells, but will matter for
the following commit).

Adjust tests checking __gitdir() or any other completion function
calling __gitdir() to perform those checks in a subshell to prevent
$__git_repo_path from leaking into the test environment.  Otherwise
leave the tests unchanged to demonstrate that this change doesn't
alter __gitdir()'s behavior.

Signed-off-by: SZEDER Gábor <szeder.dev@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-02-03 22:18:41 -08:00
SZEDER Gábor
a958d40f4e completion: don't guard git executions with __gitdir()
Three completion functions, namely __git_index_files(), __git_heads()
and __git_tags(), first run __gitdir() and check that the path it
outputs exists, i.e. that there is a git repository, and run a git
command only if there is one.

After the previous changes in this series there are no further uses of
__gitdir()'s output in these functions besides those checks.  And
those checks are unnecessary, because we can just execute those git
commands outside of a repository and let them error out.  We don't
perform such a check in other places either.

Remove this check and the __gitdir() call from these functions,
sparing the fork()+exec() overhead of the command substitution and the
potential 'git rev-parse' execution.

Signed-off-by: SZEDER Gábor <szeder.dev@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-02-03 22:18:41 -08:00
SZEDER Gábor
e15098a314 completion: consolidate silencing errors from git commands
Outputting error messages during completion is bad: they disrupt the
command line, can't be deleted, and the user is forced to Ctrl-C and
start over most of the time.  We already silence stderr of many git
commands in our Bash completion script, but there are still some in
there that can spew error messages when something goes wrong.

We could add the missing stderr redirections to all the remaining
places, but instead let's leverage that git commands are now executed
through the previously introduced __git() wrapper function, and
redirect standard error to /dev/null only in that function.  This way
we need only one redirection to take care of errors from almost all
git commands.  Redirecting standard error of the __git() wrapper
function thus became redundant, remove them.

The exceptions, i.e. the repo-independent git executions and those in
the __gitdir() function that don't go through __git() already have
their standard error silenced.

Signed-off-by: SZEDER Gábor <szeder.dev@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-02-03 22:18:41 -08:00
SZEDER Gábor
1cd23e9e05 completion: don't use __gitdir() for git commands
Several completion functions contain the following pattern to run git
commands respecting the path to the repository specified on the
command line:

  git --git-dir="$(__gitdir)" <cmd> <options>

This imposes the overhead of fork()ing a subshell for the command
substitution and potentially fork()+exec()ing 'git rev-parse' inside
__gitdir().

Now, if neither '--gitdir=<path>' nor '-C <path>' options are
specified on the command line, then those git commands are perfectly
capable to discover the repository on their own.  If either one or
both of those options are specified on the command line, then, again,
the git commands could discover the repository, if we pass them all of
those options from the command line.

This means we don't have to run __gitdir() at all for git commands and
can spare its fork()+exec() overhead.

Use Bash parameter expansions to check the $__git_dir variable and
$__git_C_args array and to assemble the appropriate '--git-dir=<path>'
and '-C <path>' options if either one or both are present on the
command line.  These parameter expansions are, however, rather long,
so instead of changing all git executions and make already long lines
even longer, encapsulate running git with '--git-dir=<path> -C <path>'
options into the new __git() wrapper function.  Furthermore, this
wrapper function will also enable us to silence error messages from
git commands uniformly in one place in a later commit.

There's one tricky case, though: in __git_refs() local refs are listed
with 'git for-each-ref', where "local" is not necessarily the
repository we are currently in, but it might mean a remote repository
in the filesystem (e.g. listing refs for 'git fetch /some/other/repo
<TAB>').  Use one-shot variable assignment to override $__git_dir with
the path of the repository where the refs should come from.  Although
one-shot variable assignments in front of shell functions are to be
avoided in our scripts in general, in the Bash completion script we
can do that safely.

Signed-off-by: SZEDER Gábor <szeder.dev@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-02-03 22:18:41 -08:00
SZEDER Gábor
80ac0744b1 completion: respect 'git -C <path>'
'git -C <path>' option(s) on the command line should be taken into
account during completion, because

  - like '--git-dir=<path>', it can lead us to a different repository,

  - a few git commands executed in the completion script do care about
    in which directory they are executed, and

  - the command for which we are providing completion might care about
    in which directory it will be executed.

However, unlike '--git-dir=<path>', the '-C <path>' option can be
specified multiple times and their effect is cumulative, so we can't
just store a single '<path>' in a variable.  Nor can we simply
concatenate a path from '-C <path1> -C <path2> ...', because e.g. (in
an arguably pathological corner case) a relative path might be
followed by an absolute path.

Instead, store all '-C <path>' options word by word in the
$__git_C_args array in the main git completion function, and pass this
array, if present, to 'git rev-parse --absolute-git-dir' when
discovering the repository in __gitdir(), and let it take care of
multiple options, relative paths, absolute paths and everything.

Also pass all '-C <path> options via the $__git_C_args array to those
git executions which require a worktree and for which it matters from
which directory they are executed from.  There are only three such
cases:

  - 'git diff-index' and 'git ls-files' in __git_ls_files_helper()
    used for git-aware filename completion, and

  - the 'git ls-tree' used for completing the 'ref:path' notation.

The other git commands executed in the completion script don't need
these '-C <path>' options, because __gitdir() already took those
options into account.  It would not hurt them, either, but let's not
induce unnecessary code churn.

Signed-off-by: SZEDER Gábor <szeder.dev@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-02-03 22:18:41 -08:00
SZEDER Gábor
336d694ce4 completion: fix completion after 'git -C <path>'
The main completion function finds the name of the git command by
iterating through all the words on the command line in search for the
first non-option-looking word.  As it is not aware of 'git -C's
mandatory path argument, if the '-C <path>' option is present, 'path'
will be the first such word and it will be mistaken for a git command.
This breaks completion in various ways:

 - If 'path' happens to match one of the commands supported by the
   completion script, then options of that command will be offered.

 - If 'path' doesn't match a supported command and doesn't contain any
   characters not allowed in Bash identifier names, then the
   completion script does basically nothing and Bash in turn falls
   back to filename completion for all subsequent words.

 - Otherwise, if 'path' does contain such an unallowed character, then
   it leads to a more or less ugly error message in the middle of the
   command line.  The standard '/' directory separator is such a
   character, and it happens to trigger one of the uglier errors:

     $ git -C some/path <TAB>sh.exe": declare: `_git_some/path': not a valid identifier
     error: invalid key: alias.some/path

Fix this by skipping 'git -C's mandatory path argument while iterating
over the words on the command line.  Extend the relevant test with
this case and, while at it, with cases that needed similar treatment
in the past ('--git-dir', '-c', '--work-tree' and '--namespace').

Additionally, silence the standard error of the 'declare' builtins
looking for the completion function associated with the git command
and of the 'git config' query for the aliased command.  So if git ever
learns a new option with a mandatory argument in the future, then,
though the completion script will again misbehave, at least the
command line will not be utterly disrupted by those error messages.

Signed-off-by: SZEDER Gábor <szeder.dev@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-02-03 22:18:41 -08:00
SZEDER Gábor
7b329b9dab completion: don't offer commands when 'git --opt' needs an argument
The main git options '--git-dir', '-c', '-C', '--worktree' and
'--namespace' require an argument, but attempting completion right
after them lists git commands.

Don't offer anything right after these options, thus let Bash fall
back to filename completion, because

  - the three options '--git-dir', '-C' and '--worktree' do actually
    require a path argument, and

  - we don't complete the required argument of '-c' and '--namespace',
    and in that case the "standard" behavior of our completion script
    is to not offer anything, but fall back to filename completion.

Signed-off-by: SZEDER Gábor <szeder.dev@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-02-03 22:18:40 -08:00
SZEDER Gábor
91b7ea81e8 completion: list short refs from a remote given as a URL
e832f5c096 (completion: avoid ls-remote in certain scenarios,
2013-05-28) turned a 'git ls-remote <remote>' query into a 'git
for-each-ref refs/remotes/<remote>/' to improve responsiveness of
remote refs completion by avoiding potential network communication.
However, it inadvertently made impossible to complete short refs from
a remote given as a URL, e.g. 'git fetch git://server.com/repo.git
<TAB>', because there is, of course, no such thing as
'refs/remotes/git://server.com/repo.git'.

Since the previous commit we tell apart configured remotes, i.e. those
that can have a hierarchy under 'refs/remotes/', from others that
don't, including remotes given as URL, so we know when we can't use
the faster 'git for-each-ref'-based approach.

Resurrect the old, pre-e832f5c09680 'git ls-remote'-based code for the
latter case to support listing short refs from remotes given as a URL.
The code is slightly updated from the original to

  - take into account the path to the repository given on the command
    line (if any), and
  - omit 'ORIG_HEAD' from the query, as 'git ls-remote' will never
    list it anyway.

When the remote given to __git_refs() doesn't exist, then it will be
handled by this resurrected 'git ls-remote' query.  This code path
doesn't list 'HEAD' unconditionally, which has the nice side effect of
fixing two more expected test failures.

Signed-off-by: SZEDER Gábor <szeder.dev@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-02-03 22:18:40 -08:00
SZEDER Gábor
62a1b73216 completion: don't list 'HEAD' when trying refs completion outside of a repo
When refs completion is attempted while not in a git repository, the
completion script offers 'HEAD' erroneously.

Check early in __git_refs() that there is either a repository or a
remote to work on, and return early if neither is given.

Signed-off-by: SZEDER Gábor <szeder.dev@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-02-03 22:18:40 -08:00
SZEDER Gábor
69a775963b completion: list refs from remote when remote's name matches a directory
If the remote given to __git_refs() happens to match both the name of
a configured remote and the name of a directory in the current working
directory, then that directory is assumed to be a git repository, and
listing refs from that directory will be attempted.  This is wrong,
because in such a situation git commands (e.g. 'git fetch|pull|push
<remote>' whom these refs will eventually be passed to) give
precedence to the configured remote.  Therefore, __git_refs() should
list refs from the configured remote as well.

Add the helper function __git_is_configured_remote() that checks
whether its argument matches the name of a configured remote.  Use
this helper to decide how to handle the remote passed to __git_refs().

Signed-off-by: SZEDER Gábor <szeder.dev@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-02-03 22:18:40 -08:00
SZEDER Gábor
5c12f642df completion: respect 'git --git-dir=<path>' when listing remote refs
In __git_refs() the git commands listing refs, both short and full,
from a given remote repository are run without giving them the path to
the git repository which might have been specified on the command line
via 'git --git-dir=<path>'.  This is bad, those git commands should
access the 'refs/remotes/<remote>/' hierarchy or the remote and
credentials configuration in that specified repository.

Use the __gitdir() helper only to find the path to the .git directory
and pass the resulting path to the 'git ls-remote' and 'for-each-ref'
executions that list remote refs.  While modifying that 'for-each-ref'
line, remove the superfluous disambiguating doubledash.

Don't use __gitdir() to check that the given remote is on the file
system: basically it performs only a single if statement for us at the
considerable cost of fork()ing a subshell for a command substitution.
We are better off to perform all the necessary checks of the remote in
__git_refs().

Though __git_refs() was the last remaining callsite that passed a
remote to __gitdir(), don't delete __gitdir()'s remote-handling part
yet, just in case some users' custom completion scriptlets depend on
it.

Signed-off-by: SZEDER Gábor <szeder.dev@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-02-03 22:18:40 -08:00
SZEDER Gábor
3bcb41f976 completion: fix most spots not respecting 'git --git-dir=<path>'
The completion script already respects the path to the repository
specified on the command line most of the time, here we add the
necessary '--git-dir=$(__gitdir)' options to most of the places where
git was executed without it.  The exceptions where said option is not
added are the git invocations:

  - in __git_refs() which are non-trivial and will be the subject of
    the following patch,

  - getting the list of git commands, merge strategies and archive
    formats, because these are independent from the repository and
    thus don't need it, and

  - the 'git rev-parse --git-dir' in __gitdir() itself.

Signed-off-by: SZEDER Gábor <szeder.dev@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-02-03 22:18:40 -08:00
SZEDER Gábor
a2f03b0ec8 completion: ensure that the repository path given on the command line exists
The __gitdir() helper function prints the path to the git repository
to its stdout or stays silent and returns with error when it can't
find a repository or when the repository given via $GIT_DIR doesn't
exist.

This is not the case, however, when the path in $__git_dir, i.e. the
path to the repository specified on the command line via 'git
--git-dir=<path>', doesn't exist: __gitdir() still outputs it as if it
were a real existing repository, making some completion functions
believe that they operate on an existing repository.

Check that the path in $__git_dir exists and return with error without
printing anything to stdout if it doesn't.

Signed-off-by: SZEDER Gábor <szeder.dev@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-02-03 22:18:40 -08:00
SZEDER Gábor
be6fbdb545 completion: improve __git_refs()'s in-code documentation
That "first argument is passed to __gitdir()" statement in particular
is not really helpful, and after this series it won't be the case
anyway.

Signed-off-by: SZEDER Gábor <szeder.dev@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-02-03 22:18:39 -08:00
Junio C Hamano
74dee5cfae Merge branch 'pl/complete-diff-submodule-diff'
The command line completion (in contrib/) learned that
"git diff --submodule=" can take "diff" as a recently added option.

* pl/complete-diff-submodule-diff:
  Completion: Add support for --submodule=diff
2017-02-03 11:25:19 -08:00
Junio C Hamano
6f1c08bdb7 Merge branch 'rs/absolute-pathdup'
Code cleanup.

* rs/absolute-pathdup:
  use absolute_pathdup()
  abspath: add absolute_pathdup()
2017-02-02 13:36:55 -08:00
Cornelius Weig
446624ce35 completion: add completion for --recurse-submodules=only
Command completion for 'git-push --recurse-submodules' already knows to
complete some modes. However, the recently added mode 'only' is missing.

Adding 'only' to the recognized modes completes the list of non-trivial
modes.

Signed-off-by: Cornelius Weig <cornelius.weig@tngtech.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-02-01 15:16:50 -08:00
Junio C Hamano
b7786bb4b0 Merge branch 'js/difftool-builtin'
Rewrite a scripted porcelain "git difftool" in C.

* js/difftool-builtin:
  difftool: hack around -Wzero-length-format warning
  difftool: retire the scripted version
  difftool: implement the functionality in the builtin
  difftool: add a skeleton for the upcoming builtin
2017-01-31 13:15:00 -08:00
Junio C Hamano
0eade20cd9 Merge branch 'sb/retire-convert-objects-from-contrib'
Remove an ancient tool left in contrib/.

* sb/retire-convert-objects-from-contrib:
  contrib: remove git-convert-objects
2017-01-31 13:14:59 -08:00
Peter Law
462f213429 Completion: Add support for --submodule=diff
Teach git-completion.bash about the 'diff' option to 'git diff
--submodule=', which was added in Git 2.11.

Signed-off-by: Peter Law <PeterJCLaw@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-01-30 15:04:22 -08:00
René Scharfe
568edcb95a add SWAP macro
Add a macro for exchanging the values of variables.  It allows users
to avoid repetition and takes care of the temporary variable for them.
It also makes sure that the storage sizes of its two parameters are the
same.  Its memcpy(1) calls are optimized away by current compilers.

Also add a conservative semantic patch for transforming only swaps of
variables of the same type.

Signed-off-by: Rene Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-01-30 14:07:45 -08:00
René Scharfe
b1edb40f25 abspath: add absolute_pathdup()
Add a function that returns a buffer containing the absolute path of its
argument and a semantic patch for its intended use.  It avoids an extra
string copy to a static buffer.

Signed-off-by: Rene Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-01-26 14:51:06 -08:00
Jacob Keller
77d21f29ea describe: teach describe negative pattern matches
Teach git-describe the `--exclude` option which will allow specifying
a glob pattern of tags to ignore. This can be combined with the
`--match` patterns to enable more flexibility in determining which tags
to consider.

For example, suppose you wish to find the first official release tag
that contains a certain commit. If we assume that official release tags
are of the form "v*" and pre-release candidates include "*rc*" in their
name, we can now find the first release tag that introduces the commit
abcdef:

  git describe --contains --match="v*" --exclude="*rc*" abcdef

Add documentation, tests, and completion for this change.

Signed-off-by: Jacob Keller <jacob.keller@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-01-23 18:33:17 -08:00
Stefan Beller
c9a98ddc26 contrib: remove git-convert-objects
git-convert-objects, originally named git-convert-cache was used in
early 2005 to convert ancient repositories where objects are named
after the hash of their compressed contents to the current object
naming sheme where they are named after the hash of their pre-compression
contents.

By now the need for conversion of the very early repositories is
less relevant, we no longer need to keep it in contrib; remove it.

Signed-off-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-01-19 14:56:47 -08:00
Johannes Schindelin
019678d6b1 difftool: retire the scripted version
It served its purpose, but now we have a builtin difftool. Time for the
Perl script to enjoy Florida.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-01-19 13:23:43 -08:00