Commit Graph

705 Commits

Author SHA1 Message Date
Junio C Hamano
7d6f6e3730 Merge branch 'sg/completion-remote' into maint
Code simplification.

* sg/completion-remote:
  completion: simplify __git_remotes()
  completion: add a test for __git_remotes() helper function
2015-03-23 11:23:33 -07:00
SZEDER Gábor
260d5850ad completion: use __gitcomp_nl() for completing refs
We do that almost everywhere, because it's faster for large number of
refs, see a31e62629 (completion: optimize refs completion, 2011-10-15).
These were the last two places where we still used __gitcomp() for
completing refs.

Signed-off-by: SZEDER Gábor <szeder@ira.uka.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-03-22 16:41:12 -07:00
Junio C Hamano
2a39bdb9a1 Merge branch 'mg/doc-status-color-slot'
Documentation fixes.

* mg/doc-status-color-slot:
  config,completion: add color.status.unmerged
2015-03-17 16:01:34 -07:00
Junio C Hamano
e5b8ce243c Merge branch 'sg/completion-remote'
Code simplification.

* sg/completion-remote:
  completion: simplify __git_remotes()
  completion: add a test for __git_remotes() helper function
2015-03-17 16:01:30 -07:00
Cody A Taylor
9bdc5173f0 git prompt: use toplevel to find untracked files
The __git_ps1() prompt function would not show an untracked state
when all the untracked files are outside the current working
directory.

Signed-off-by: Cody A Taylor <codemister99@yahoo.com>
Helped-by: SZEDER Gábor <szeder@ira.uka.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-03-15 14:23:22 -07:00
John Szakmeister
db8d750876 contrib/completion: escape the forward slash in __git_match_ctag
The current definition results in an incorrect expansion of the term under zsh.
For instance "/^${1////\\/}/" under zsh with the argument "hi" results in:
    /^/\/h/\/i/

This results in an output similar to this when trying to complete `git grep
chartab` under zsh:

    :: git grep chartabawk: cmd. line:1: /^/\/c/\/h/\/a/\/r/\/t/\/a/\/b/ { print $1 }
    awk: cmd. line:1:    ^ backslash not last character on line
    awk: cmd. line:1: /^/\/c/\/h/\/a/\/r/\/t/\/a/\/b/ { print $1 }
    awk: cmd. line:1:    ^ syntax error

Leaving the prompt in a goofy state until the user hits a key.

Escaping the literal / in the parameter expansion (using "/^${1//\//\\/}/")
results in:
    /^chartab/

allowing the completion to work correctly.

This formulation also works under bash.

Signed-off-by: John Szakmeister <john@szakmeister.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-03-14 18:59:09 -07:00
Dave Olszewski
a8bc269f11 push: allow --follow-tags to be set by config push.followTags
Signed-off-by: Dave Olszewski <cxreg@pobox.com>
Helped-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-03-14 15:08:35 -07:00
Michael J Gruber
0d6accc01d config,completion: add color.status.unmerged
Reported-by: "Mladen B." <mladen074@gmail.com>
Signed-off-by: Michael J Gruber <git@drmicha.warpmail.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-03-10 15:27:59 -07:00
SZEDER Gábor
53e53c7c81 completion: simplify __git_remotes()
The __git_remotes() helper function lists the remotes from the config
file by processing the output of a 'git config' query.  A simple 'git
remote' produces the exact same output, so run that instead.

Remotes under '$GIT_DIR/remotes' are still listed by running 'ls -1',
because 'git remote' unfortunately ignores them.

Signed-off-by: SZEDER Gábor <szeder@ira.uka.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-03-06 12:48:02 -08:00
Junio C Hamano
1ba6e860b9 Merge branch 'cj/log-invert-grep'
"git log --invert-grep --grep=WIP" will show only commits that do
not have the string "WIP" in their messages.

* cj/log-invert-grep:
  log: teach --invert-grep option
2015-02-11 13:42:39 -08:00
Junio C Hamano
9920c71825 Merge branch 'tf/prompt-preserve-exit-status'
Using the exit status of the last command in the prompt, e.g.
PS1='$(__git_ps1) $? ', did not work well because the helper
function stomped on the exit status.

* tf/prompt-preserve-exit-status:
  git-prompt: preserve value of $? in all cases
2015-01-14 12:35:49 -08:00
Junio C Hamano
e1ef7d177c Merge branch 'rh/hide-prompt-in-ignored-directory'
* rh/hide-prompt-in-ignored-directory:
  git-prompt.sh: allow to hide prompt for ignored pwd
  git-prompt.sh: if pc mode, immediately set PS1 to a plain prompt
2015-01-14 12:34:01 -08:00
Junio C Hamano
1e7ef5d9bf Merge branch 'mm/complete-rebase-autostash'
* mm/complete-rebase-autostash:
  git-completion: add --autostash for 'git rebase'
2015-01-14 12:33:57 -08:00
Tony Finch
6babe76496 git-prompt: preserve value of $? in all cases
Signed-off-by: Tony Finch <dot@dotat.at>
Reviewed-by: SZEDER Gábor <szeder@ira.uka.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-01-14 10:11:49 -08:00
Christoph Junghans
22dfa8a23d log: teach --invert-grep option
"git log --grep=<string>" shows only commits with messages that
match the given string, but sometimes it is useful to be able to
show only commits that do *not* have certain messages (e.g. "show
me ones that are not FIXUP commits").

Originally, we had the invert-grep flag in grep_opt, but because
"git grep --invert-grep" does not make sense except in conjunction
with "--files-with-matches", which is already covered by
"--files-without-matches", it was moved it to revisions structure.
To have the flag there expresses the function to the feature better.

When the newly inserted two tests run, the history would have commits
with messages "initial", "second", "third", "fourth", "fifth", "sixth"
and "Second", committed in this order.  The commits that does not match
either "th" or "Sec" is "second" and "initial". For the case insensitive
case only "initial" matches.

Signed-off-by: Christoph Junghans <ottxor@gentoo.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-01-13 10:20:32 -08:00
Junio C Hamano
487b17de3e Merge branch 'tf/prompt-preserve-exit-status'
Using the exit status of the last command in the prompt, e.g.
PS1='$(__git_ps1) $? ', did not work well because the helper
function stomped on the exit status.

* tf/prompt-preserve-exit-status:
  git-prompt: preserve value of $? inside shell prompt
2015-01-07 13:09:35 -08:00
Junio C Hamano
e82f629cf4 Merge branch 'pd/completion-filenames-fix'
The top-of-the-file instruction for completion scripts (in contrib/)
did not name the files correctly.

* pd/completion-filenames-fix:
  Update documentation occurrences of filename .sh
2015-01-07 13:06:37 -08:00
Matthieu Moy
d89ad9c1b8 git-completion: add --autostash for 'git rebase'
This option was added in 58794775 (rebase: implement
--[no-]autostash and rebase.autostash, 2013-05-12).

Completion of "--autosquash" has been there, but this was not;
addition of this would require people completing "--autosquash" to
type a bit more than before.

Signed-off-by: Matthieu Moy <Matthieu.Moy@imag.fr>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-01-07 10:42:53 -08:00
Jess Austin
0120b8c85c git-prompt.sh: allow to hide prompt for ignored pwd
Optionally set __git_ps1 to display nothing when present working
directory is ignored, triggered by the new environment variable
GIT_PS1_HIDE_IF_PWD_IGNORED. This environment variable may be
overridden on any repository by setting bash.hideIfPwdIgnored to
"false". In the absence of GIT_PS1_HIDE_IF_PWD_IGNORED this change
has no effect.

Many people manage e.g. dotfiles in their home directory with git.
This causes the prompt generated by __git_ps1 to refer to that "top
level" repo while working in any descendant directory. That can be
distracting, so this patch helps one shut off that noise.

Signed-off-by: Jess Austin <jess.austin@gmail.com>
Signed-off-by: Richard Hansen <rhansen@bbn.com>
Reviewed-by: Richard Hansen <rhansen@bbn.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-01-07 10:30:30 -08:00
Richard Hansen
76b4309400 git-prompt.sh: if pc mode, immediately set PS1 to a plain prompt
At the beginning of __git_ps1, right after determining that the
function is running in pc mode, set PS1 to a plain (undecorated)
prompt.  This makes it possible to simply return early without having
to set PS1 if the prompt should not be decorated.

Signed-off-by: Richard Hansen <rhansen@bbn.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-01-07 10:27:53 -08:00
Junio C Hamano
35b5a8b769 Merge branch 'jg/prompt-localize-temporary'
"git-prompt" (in contrib/) used a variable from the global scope,
possibly contaminating end-user's namespace.

* jg/prompt-localize-temporary:
  git-prompt.sh: make $f local to __git_eread()
2014-12-22 12:28:20 -08:00
Junio C Hamano
2cd20dc3d4 Merge branch 'rt/completion-tag'
* rt/completion-tag:
  completion: add git-tag options
2014-12-22 12:27:24 -08:00
Tony Finch
eb443e3b39 git-prompt: preserve value of $? inside shell prompt
If you have a prompt which displays the command exit status,
__git_ps1 without this change corrupts it, although it has
the correct value in the parent shell:

	~/src/git (master) 0 $ set | grep ^PS1
	PS1='\w$(__git_ps1) $? \$ '
	~/src/git (master) 0 $ false
	~/src/git (master) 0 $ echo $?
	1
	~/src/git (master) 0 $

There is a slightly ugly workaround:

	~/src/git (master) 0 $ set | grep ^PS1
	PS1='\w$(x=$?; __git_ps1; exit $x) $? \$ '
	~/src/git (master) 0 $ false
	~/src/git (master) 1 $

This change makes the workaround unnecessary.

Signed-off-by: Tony Finch <dot@dotat.at>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-12-22 11:58:56 -08:00
Peter van der Does
0e5ed7cca3 Update documentation occurrences of filename .sh
Documentation in the completion scripts for Bash and Zsh state the wrong filenames.

Signed-off-by: Peter van der Does <peter@avirtualhome.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-12-15 09:37:14 -08:00
Justin Guenther
9dd70e0a0d git-prompt.sh: make $f local to __git_eread()
This function uses (non-local) $f to store the value of its first parameter.
This can interfere with the user's environment.

Signed-off-by: Justin Guenther <jguenther@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-12-12 15:13:37 -08:00
Ralf Thielow
85ed2f3206 completion: add git-tag options
Add completion for git-tag options including
all options that are currently shown in "git tag -h".

Signed-off-by: Ralf Thielow <ralf.thielow@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-12-04 12:10:26 -08:00
Paolo Bonzini
8d81408435 git-send-email: add --transfer-encoding option
The thread at http://thread.gmane.org/gmane.comp.version-control.git/257392
details problems when applying patches with "git am" in a repository with
CRLF line endings.  In the example in the thread, the repository originated
from "git-svn" so it is not possible to use core.eol and friends on it.

Right now, the best option is to use "git am --keep-cr".  However, when
a patch create new files, the patch application process will reject the
new file because it finds a "/dev/null\r" string instead of "/dev/null".

The problem is that SMTP transport is CRLF-unsafe.  Sending a patch by
email is the same as passing it through "dos2unix | unix2dos".  The newly
introduced CRLFs are normally transparent because git-am strips them. The
keepcr=true setting preserves them, but it is mostly working by chance
and it would be very problematic to have a "git am" workflow in a
repository with mixed LF and CRLF line endings.

The MIME solution to this is the quoted-printable transfer enconding.
This is not something that we want to enable by default, since it makes
received emails horrible to look at.  However, it is a very good match
for projects that store CRLF line endings in the repository.

The only disadvantage of quoted-printable is that quoted-printable
patches fail to apply if the maintainer uses "git am --keep-cr".  This
is because the decoded patch will have two carriage returns at the end
of the line.  Therefore, add support for base64 transfer encoding too,
which makes received emails downright impossible to look at outside
a MUA, but really just works.

The patch covers all bases, including users that still live in the late
80s, by also providing a 7bit content transfer encoding that refuses
to send emails with non-ASCII character in them.  And finally, "8bit"
will add a Content-Transfer-Encoding header but otherwise do nothing.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-11-25 14:00:15 -08:00
Junio C Hamano
c1777a2970 Merge branch 'oc/mergetools-beyondcompare'
* oc/mergetools-beyondcompare:
  mergetool: rename bc3 to bc
2014-10-29 10:08:04 -07:00
Junio C Hamano
693f62ff68 Merge branch 'js/completion-hide-not-a-repo'
Some internal error messages leaked out of the bash completion when
typing "git cmd <TAB>" and the machinery tried to complete
refnames.

* js/completion-hide-not-a-repo:
  completion: silence "fatal: Not a git repository" error
2014-10-21 13:28:50 -07:00
Junio C Hamano
f13f9b0eab mergetool: rename bc3 to bc
Beyond Compare version 4 works the same way as version 3, so rename
the existing "bc3" adaptor to just "bc", while keeping "bc3" as a
backward compatible wrapper.

Noticed-by: Olivier Croquette <ocroquette@free.fr>
Helped-by: David Aguilar <davvid@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-10-21 11:25:30 -07:00
Junio C Hamano
98349e5364 Merge branch 'jc/completion-no-chdir'
* jc/completion-no-chdir:
  completion: use "git -C $there" instead of (cd $there && git ...)
2014-10-16 14:16:49 -07:00
John Szakmeister
8f7ff5b2fe completion: silence "fatal: Not a git repository" error
It is possible that a user is trying to run a git command and fail
to realize that they are not in a git repository or working tree.
When trying to complete an operation, __git_refs would fall to a
degenerate case and attempt to use "git for-each-ref", which would
emit the error.

Hide this error message coming from "git for-each-ref".

Signed-off-by: John Szakmeister <john@szakmeister.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-10-14 13:06:13 -07:00
Junio C Hamano
fca416a41e completion: use "git -C $there" instead of (cd $there && git ...)
We have had "git -C $there" to first go to a different directory
and run a Git command without changing the arguments for quite some
time.  Use it instead of (cd $there && git ...) in the completion
script.

This allows us to lose the work-around for misfeatures of modern
interactive-minded shells that make "cd" unusable in scripts (e.g.
end users' $CDPATH taking us to unexpected places in any POSIX
shell, and chpwd functions spewing unwanted output in zsh).

Based on Øystein Walle's idea, which was raised during the
discussion on the solution by Brandon Turner for a problem zsh users
had with RVM which mucks with chpwd_functions in users' environments
(https://github.com/wayneeseguin/rvm/issues/3076).

As $root variable, which is used to direct where to chdir to, is set
to "." based on if $2 to __git_index_files is set (not if it is empty),
the only caller of the function is fixed not to pass the optional $2
when it does not want us to switch to a different directory.  Otherwise
we would end up doing "git -C '' command...", which would not work.

Maybe we would want "git -C '' command..." to mean "do not chdir
anywhere", but that is a spearate topic.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-10-09 15:06:08 -07:00
David Aguilar
2ca0b197b8 completion: add --show-signature for log and show
Signed-off-by: David Aguilar <davvid@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-10-07 12:00:48 -07:00
Junio C Hamano
8ec959fbce Merge branch 'jk/prompt-stash-could-be-packed' into maint
* jk/prompt-stash-could-be-packed:
  git-prompt: do not look for refs/stash in $GIT_DIR
2014-09-19 14:05:11 -07:00
Junio C Hamano
b6de2dcb80 Merge branch 'tb/complete-diff-ignore-blank-lines'
* tb/complete-diff-ignore-blank-lines:
  completion: Add --ignore-blank-lines for diff
2014-09-19 11:38:38 -07:00
Junio C Hamano
64014894cf Merge branch 'jk/prompt-stash-could-be-packed'
The prompt script checked $GIT_DIR/ref/stash file to see if there
is a stash, which was a no-no.

* jk/prompt-stash-could-be-packed:
  git-prompt: do not look for refs/stash in $GIT_DIR
2014-09-09 12:54:08 -07:00
Thomas Braun
c254516737 completion: Add --ignore-blank-lines for diff
Signed-off-by: Thomas Braun <thomas.braun@virtuell-zuhause.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-09-03 12:23:10 -07:00
Jeff King
0fa7f01635 git-prompt: do not look for refs/stash in $GIT_DIR
Since dd0b72c (bash prompt: use bash builtins to check stash
state, 2011-04-01), git-prompt checks whether we have a
stash by looking for $GIT_DIR/refs/stash. Generally external
programs should never do this, because they would miss
packed-refs.

That commit claims that packed-refs does not pack
refs/stash, but that is not quite true. It does pack the
ref, but due to a bug, fails to prune the ref. When we fix
that bug, we would want to be doing the right thing here.

Signed-off-by: Jeff King <peff@peff.net>
Reviewed-by: Michael Haggerty <mhagger@alum.mit.edu>
Reviewed-by: Ronnie Sahlberg <sahlberg@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-08-25 12:21:17 -07:00
Junio C Hamano
0d9cb2d14e Merge branch 'jk/more-push-completion'
* jk/more-push-completion:
  completion: complete `git push --force-with-lease=`
  completion: add some missing options to `git push`
  completion: complete "unstuck" `git push --recurse-submodules`
2014-07-30 14:21:14 -07:00
John Keeping
aaf7253f84 completion: complete git push --force-with-lease=
Signed-off-by: John Keeping <john@keeping.me.uk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-07-22 13:30:30 -07:00
John Keeping
9e8a6a9433 completion: add some missing options to git push
Signed-off-by: John Keeping <john@keeping.me.uk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-07-22 13:23:39 -07:00
John Keeping
3a224ff2bb completion: complete "unstuck" git push --recurse-submodules
Since the argument to `--recurse-submodules` is mandatory, it does not
need to be stuck to the option with `=`.

Signed-off-by: John Keeping <john@keeping.me.uk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-07-22 13:21:07 -07:00
Junio C Hamano
af6ba0eb9e Merge branch 'sp/complete-ext-alias'
* sp/complete-ext-alias:
  completion: handle '!f() { ... }; f' and "!sh -c '...' -" aliases
2014-06-25 12:23:27 -07:00
Steffen Prohaska
56f24e80f0 completion: handle '!f() { ... }; f' and "!sh -c '...' -" aliases
'!f() { ... }; f' and "!sh -c '....' -" are recommended patterns for
declaring more complex aliases (see git wiki [1]).  This commit teaches
the completion to handle them.

When determining which completion to use for an alias, an opening brace
or single quote is now skipped, and the search for a git command is
continued.  For example, the aliases '!f() { git commit ... }' or "!sh
-c 'git commit ...'" now trigger commit completion.  Previously, the
search stopped on the opening brace or quote, and the completion tried
it to determine how to complete, which obviously was useless.

The null command ':' is now skipped, so that it can be used as
a workaround to declare the desired completion style.

For example, the aliases

    !f() { : git commit ; if ... } f
    !sh -c ': git commit; if ...' -

now trigger commit completion.

Shell function declarations now work with or without space before
the parens, i.e. '!f() ...' and '!f () ...' both work.

[1] https://git.wiki.kernel.org/index.php/Aliases

Signed-off-by: Steffen Prohaska <prohaska@zib.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-06-13 13:37:43 -07:00
John Keeping
8fee872647 completion: add missing options for git-merge
The options added to __git_merge_options are those that git-pull passes
to git-merge, since that variable is used by both commands.

Those added directly in _git_merge() are specific to git-merge and
are not passed thru from git-pull.

Reported-by: Haralan Dobrev <hkdobrev@gmail.com>
Signed-off-by: John Keeping <john@keeping.me.uk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-05-27 12:27:50 -07:00
John Keeping
6d2b06f02b completion: add a note that merge options are shared
This should avoid future confusion after a subsequent patch has added
some options to __git_merge_options and some directly in _git_merge().

Signed-off-by: John Keeping <john@keeping.me.uk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-05-27 12:27:36 -07:00
Junio C Hamano
df43b41afc Merge branch 'rh/prompt-pcmode-avoid-eval-on-refname'
* rh/prompt-pcmode-avoid-eval-on-refname:
  git-prompt.sh: don't assume the shell expands the value of PS1
2014-05-19 16:10:10 -07:00
Richard Hansen
1e4119c81b git-prompt.sh: don't assume the shell expands the value of PS1
Not all shells subject the prompt string to parameter expansion.  Test
whether the shell will expand the value of PS1, and use the result to
control whether raw ref names are included directly in PS1.

This fixes a regression introduced in commit 8976500 ("git-prompt.sh:
don't put unsanitized branch names in $PS1"):  zsh does not expand PS1
by default, but that commit assumed it did.  The bug resulted in
prompts containing the literal string '${__git_ps1_branch_name}'
instead of the actual branch name.

Reported-by: Caleb Thompson <caleb@calebthompson.io>
Signed-off-by: Richard Hansen <rhansen@bbn.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-05-19 16:09:53 -07:00
Junio C Hamano
6308767f0b Merge branch 'fc/prompt-zsh-read-from-file'
* fc/prompt-zsh-read-from-file:
  contrib: completion: fix 'eread()' namespace
2014-05-13 11:53:14 -07:00
Felipe Contreras
66ab301c16 contrib: completion: fix 'eread()' namespace
Otherwise it might collide with a function of the same name in the
user's environment.

Suggested-by: SZEDER Gábor <szeder@ira.uka.de>
Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-05-13 11:52:51 -07:00
Junio C Hamano
f7003da0f4 Merge branch 'rh/prompt-pcmode-avoid-eval-on-refname'
* rh/prompt-pcmode-avoid-eval-on-refname:
  git-prompt.sh: don't put unsanitized branch names in $PS1
2014-05-02 13:10:53 -07:00
Richard Hansen
8976500cbb git-prompt.sh: don't put unsanitized branch names in $PS1
Both bash and zsh subject the value of PS1 to parameter expansion,
command substitution, and arithmetic expansion.  Rather than include
the raw, unescaped branch name in PS1 when running in two- or
three-argument mode, construct PS1 to reference a variable that holds
the branch name.  Because the shells do not recursively expand, this
avoids arbitrary code execution by specially-crafted branch names such
as '$(IFS=_;cmd=sudo_rm_-rf_/;$cmd)'.

Signed-off-by: Richard Hansen <rhansen@bbn.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-04-22 12:37:53 -07:00
Junio C Hamano
961c1b191a Merge branch 'fc/complete-aliased-push'
* fc/complete-aliased-push:
  completion: fix completing args of aliased "push", "fetch", etc.
2014-04-18 11:17:36 -07:00
Felipe Contreras
59d3924fbb prompt: fix missing file errors in zsh
zsh seems to have a bug while redirecting the stderr of the 'read'
command:

    % read foo 2>/dev/null <foo
    zsh: no such file or directory: foo

Which causes errors to be displayed when certain files are missing.
Let's add a convenience function to manually check if the file is
readable before calling "read".

Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-04-14 13:27:23 -07:00
Felipe Contreras
880111c11b completion: fix completing args of aliased "push", "fetch", etc.
Some commands need the first word to determine the actual action that is
being executed, however, the command is wrong when we use an alias, for
example 'alias.p=push', if we try to complete 'git p origin ', the
result would be wrong because __git_complete_remote_or_refspec() doesn't
know where it came from.

So let's override words[1], so the alias 'p' is override by the actual
command, 'push'.

Reported-by: Aymeric Beaumet <aymeric.beaumet@gmail.com>
Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-04-09 14:22:18 -07:00
Junio C Hamano
baf9e83c21 Merge branch 'ss/completion-rec-sub-fetch-push'
* ss/completion-rec-sub-fetch-push:
  completion: teach --recurse-submodules to fetch, pull and push
2014-03-14 14:24:15 -07:00
Sup Yut Sum
4dd5c4709a completion: teach --recurse-submodules to fetch, pull and push
Signed-off-by: Sup Yut Sum <ch3cooli@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-02-11 11:17:04 -08:00
Junio C Hamano
ba98a2f660 Merge branch 'jk/complete-merge-base'
* jk/complete-merge-base:
  completion: handle --[no-]fork-point options to git-rebase
  completion: complete merge-base options
2014-01-27 10:43:55 -08:00
John Keeping
4310e328d4 completion: handle --[no-]fork-point options to git-rebase
Signed-off-by: John Keeping <john@keeping.me.uk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-01-13 14:20:31 -08:00
John Keeping
85453fd1e3 completion: complete merge-base options
Signed-off-by: John Keeping <john@keeping.me.uk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-01-13 14:20:25 -08:00
Junio C Hamano
ca46578a1d Merge branch 'rr/completion-format-coverletter'
The bash/zsh completion code did not know about format.coverLetter
among many format.* configuration variables.

* rr/completion-format-coverletter:
  completion: complete format.coverLetter
2014-01-13 11:33:38 -08:00
Ramkumar Ramachandra
de06c13a94 completion: complete format.coverLetter
Signed-off-by: Ramkumar Ramachandra <artagnon@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-01-07 09:59:25 -08:00
Ramkumar Ramachandra
c39a2f1178 completion: fix remote.pushdefault
When attempting to complete

  $ git config remote.push<TAB>

'pushdefault' doesn't come up. This is because "$cur" is matched with
"remote.*" and a list of remotes are completed. Add 'pushdefault' as a
candidate for completion too, using __gitcomp_nl_append ().

Signed-off-by: Ramkumar Ramachandra <artagnon@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-01-06 09:17:25 -08:00
Ramkumar Ramachandra
422553df49 completion: fix branch.autosetup(merge|rebase)
When attempting to complete

  $ git config branch.auto<TAB>

'autosetupmerge' and 'autosetuprebase' don't come up. This is because
"$cur" is matched with "branch.*" and a list of branches are
completed. Add 'autosetupmerge', 'autosetuprebase' as candidates for
completion too, using __gitcomp_nl_append ().

Signed-off-by: Ramkumar Ramachandra <artagnon@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-01-06 09:17:05 -08:00
Ramkumar Ramachandra
f33c2c0f9e completion: introduce __gitcomp_nl_append ()
There are situations where multiple classes of completions possible. For
example

  branch.<TAB>

should try to complete

  branch.master.
  branch.autosetupmerge
  branch.autosetuprebase

The first candidate has the suffix ".", and the second/ third candidates
have the suffix " ". To facilitate completions of this kind, create a
variation of __gitcomp_nl () that appends to the existing list of
completion candidates, COMPREPLY.

Signed-off-by: Ramkumar Ramachandra <artagnon@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-01-06 09:14:48 -08:00
Ramkumar Ramachandra
d028b8906a zsh completion: find matching custom bash completion
If zsh completion is being read from a location that is different from
system-wide default, it is likely that the user is trying to use a
custom version, perhaps closer to the bleeding edge, installed in her
own directory. We will more likely to find the matching bash completion
script in the same directory than in those system default places.

Signed-off-by: Ramkumar Ramachandra <artagnon@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-01-06 09:14:29 -08:00
Junio C Hamano
694a88a309 Merge branch 'jn/scripts-updates'
* jn/scripts-updates:
  remove #!interpreter line from shell libraries
  test: replace shebangs with descriptions in shell libraries
  test: make FILEMODE a lazy prereq
  contrib: remove git-p4import
  mark contributed hooks executable
  mark perl test scripts executable
  mark Windows build scripts executable
2013-12-12 14:22:59 -08:00
Jonathan Nieder
11d62145b9 remove #!interpreter line from shell libraries
In a shell snippet meant to be sourced by other shell scripts, an
opening #! line does more harm than good.

The harm:

 - When the shell library is sourced, the interpreter and options from
   the #! line are not used.  Specifying a particular shell can
   confuse the reader into thinking it is safe for the shell library
   to rely on idiosyncrasies of that shell.

 - Using #! instead of a plain comment drops a helpful visual clue
   that this is a shell library and not a self-contained script.

 - Tools such as lintian can use a #! line to tell when an
   installation script has failed by forgetting to set a script
   executable.  This check does not work if shell libraries also start
   with a #! line.

The good:

 - Text editors notice the #! line and use it for syntax highlighting
   if you try to edit the installed scripts (without ".sh" suffix) in
   place.

The use of the #! for file type detection is not needed because Git's
shell libraries are meant to be edited in source form (with ".sh"
suffix).  Replace the opening #! lines with comments.

This involves tweaking the test harness's valgrind support to find
shell libraries by looking for "# " in the first line instead of "#!"
(see v1.7.6-rc3~7, 2011-06-17).

Suggested by Russ Allbery through lintian.  Thanks to Jeff King and
Clemens Buchacher for further analysis.

Tested by searching for non-executable scripts with #! line:

	find . -name .git -prune -o -type f -not -executable |
	while read file
	do
		read line <"$file"
		case $line in
		'#!'*)
			echo "$file"
			;;
		esac
	done

The only remaining scripts found are templates for shell scripts
(unimplemented.sh, wrap-for-bin.sh) and sample input used in tests
(t/t4034/perl/{pre,post}).

Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-11-26 14:23:56 -08:00
John Keeping
816b2c04c9 peek-remote: remove deprecated alias of ls-remote
This has been deprecated since commit 87194d2 (Deprecate peek-remote,
2007-11-24), included in version 1.5.4.

Signed-off-by: John Keeping <john@keeping.me.uk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-11-12 14:10:22 -08:00
John Keeping
7c4012812a lost-found: remove deprecated command
"git lost-found" has been deprecated since commit fc8b5f0 (Deprecate
git-lost-found, 2007-11-08), included in version 1.5.4.

Signed-off-by: John Keeping <john@keeping.me.uk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-11-12 14:10:21 -08:00
John Keeping
925ceccf05 tar-tree: remove deprecated command
"git tar-tree" has been a thin wrapper around "git archive" since commit
fd88d9c (Remove upload-tar and make git-tar-tree a thin wrapper to
git-archive, 2006-09-24), which also made it print a message indicating
that git-tar-tree is deprecated.

Signed-off-by: John Keeping <john@keeping.me.uk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-11-12 14:10:19 -08:00
John Keeping
eb8e7e1d9a repo-config: remove deprecated alias for "git config"
The release notes for Git 1.5.4 say that "git repo-config" will be
removed in the next feature release.  Since Git 2.0 is nearly here,
remove it.

Signed-off-by: John Keeping <john@keeping.me.uk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-11-12 14:10:17 -08:00
Junio C Hamano
9f279af862 Merge branch 'sg/prompt-svn-remote-fix'
Bash portability fix.

* sg/prompt-svn-remote-fix:
  bash prompt: don't use '+=' operator in show upstream code path
2013-10-28 10:43:38 -07:00
SZEDER Gábor
52ec889d1a bash prompt: don't use '+=' operator in show upstream code path
The '+=' operator is not supported by old Bash versions (3.0) we still
care about.

Signed-off-by: SZEDER Gábor <szeder@ira.uka.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-10-15 14:20:37 -07:00
Julien Carsique
1f6806cf2d git-prompt.sh: optionally show upstream branch name
When working with multiple remotes, it is common to switch the upstream
from a remote to another. Doing so, the prompt may not be the expected
one. Providing an option to display tracking information sounds useful.

Add a "name" option to GIT_PS1_SHOWUPSTREAM which will show the upstream
abbrev name. This option is ignored if "verbose" is false.

Signed-off-by: Julien Carsique <julien.carsique@gmail.com>
Improved-by: SZEDER Gábor <szeder@ira.uka.de>
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
2013-10-14 10:24:34 -07:00
Stefan Saasen
c5f424fd01 mergetools/diffmerge: support DiffMerge as a git mergetool
DiffMerge is a non-free (but gratis) tool that supports OS X, Windows and Linux.

    See http://www.sourcegear.com/diffmerge/

DiffMerge includes a script `/usr/bin/diffmerge` that can be used to launch the
graphical compare tool.

This change adds mergetool support for DiffMerge and adds 'diffmerge' as an
option to the mergetool help.

Signed-off-by: Stefan Saasen <ssaasen@atlassian.com>
Acked-by: David Aguilar <davvid@gmail.com>
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
2013-10-13 16:00:57 -07:00
SZEDER Gábor
ea95c7b8f5 completion: improve untracked directory filtering for filename completion
Similar to Bash's default filename completion, our git-aware filename
completion stops at directory boundaries, i.e. it doesn't offer the
full 'path/to/file' at first, but only 'path/'.  To achieve that the
completion script runs 'git ls-files' with specific command line
options to get the list of relevant paths under the current directory,
and then processes each path to strip all but the base directory or
filename (see __git_index_files()).

To offer only modified and untracked files for 'git add' the
completion script runs 'git ls-files --exclude-standard --others
--modified'.  This command lists all non-ignored files in untracked
directories, which leads to a noticeable delay caused by the
processing mentioned above if there are a lot of such files
(__git_index_files() specifies '--exclude-standard' internally):

  $ mkdir untracked-dir
  $ for i in {1..10000} ; do >untracked-dir/$i ; done
  $ time __git_index_files "--others --modified"
  untracked-dir

  real	0m0.537s
  user	0m0.452s
  sys	0m0.160s

Eliminate this delay by additionally passing the '--directory
--no-empty-directory' options to 'git ls-files' to show only the
directory name of non-empty untracked directories instead their whole
content:

  $ time __git_index_files "--others --modified --directory --no-empty-directory"
  untracked-dir

  real	0m0.029s
  user	0m0.020s
  sys	0m0.004s

Filename completion for 'git clean' suffers from the same delay, as it
offers untracked files, too.  The fix could be the same, but since it
actually makes sense to 'git clean' empty directories, in this case we
only pass the '--directory' option to 'git ls-files'.

Reported-by: Isaac Levy <ilevy@google.com>
Signed-off-by: SZEDER Gábor <szeder@ira.uka.de>
Reviewed-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-09-19 13:05:40 -07:00
Brandon Casey
a44aa6930c contrib/git-prompt.sh: handle missing 'printf -v' more gracefully
Old Bash (3.0) which is distributed with RHEL 4.X and other ancient
platforms that are still in wide use, do not have a printf that
supports -v.  Neither does Zsh (which is already handled in the code).

As suggested by Junio, let's test whether printf supports the -v
option and store the result.  Then later, we can use it to
determine whether 'printf -v' can be used, or whether printf
must be called in a subshell.

Signed-off-by: Brandon Casey <drafnel@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-08-22 09:50:16 -07:00
Brandon Casey
5d5812f492 git-completion.bash: use correct Bash/Zsh array length syntax
The syntax for retrieving the number of elements in an array is:

   ${#name[@]}

Signed-off-by: Brandon Casey <drafnel@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-08-21 16:38:47 -07:00
Junio C Hamano
d6cbf2fa7a Merge branch 'rj/cygwin-clarify-use-of-cheating-lstat'
Cygwin port added a "not quite correct but a lot faster and good
enough for many lstat() calls that are only used to see if the
working tree entity matches the index entry" lstat() emulation some
time ago, and it started biting us in places.  This removes it and
uses the standard lstat() that comes with Cygwin.

Recent topic that uses lstat on packed-refs file is broken when
this cheating lstat is used, and this is a simplest fix that is
also the cleanest direction to go in the long run.

* rj/cygwin-clarify-use-of-cheating-lstat:
  cygwin: Remove the Win32 l/stat() implementation
2013-08-02 11:01:01 -07:00
Junio C Hamano
1ddc11a6fd Merge branch 'bc/completion-for-bash-3.0'
* bc/completion-for-bash-3.0:
  git-completion.bash: replace zsh notation that breaks bash 3.X
2013-07-30 09:16:37 -07:00
Brandon Casey
e78095c3d0 git-completion.bash: replace zsh notation that breaks bash 3.X
50c5885e (git-completion.bash: replace zsh notation that breaks bash
3.X, 2013-01-18) fixed a zsh-ism introduced earlier to append to an
array, which older versions of bash (3.0) did not grok.  This was
again broken by 734b2f05 (completion: synchronize zsh wrapper,
2013-05-08).

Cherry-pick the fix again to let those with older bash use the
completion script.

Signed-off-by: Brandon Casey <drafnel@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-07-24 08:45:49 -07:00
Junio C Hamano
e683889b75 Merge branch 'es/check-mailmap'
A new command to allow scripts to query the mailmap information.

* es/check-mailmap:
  t4203: test check-mailmap command invocation
  builtin: add git-check-mailmap command
2013-07-22 11:24:14 -07:00
Ramsay Jones
f66450ae94 cygwin: Remove the Win32 l/stat() implementation
Commit adbc0b6b ("cygwin: Use native Win32 API for stat", 30-09-2008)
added a Win32 specific implementation of the stat functions. In order
to handle absolute paths, cygwin mount points and symbolic links, this
implementation may fall back on the standard cygwin l/stat() functions.
Also, the choice of cygwin or Win32 functions is made lazily (by the
first call(s) to l/stat) based on the state of some config variables.

Unfortunately, this "schizophrenic stat" implementation has been the
source of many problems ever since. For example, see commits 7faee6b8,
79748439, 452993c2, 085479e7, b8a97333, 924aaf3e, 05bab3ea and 0117c2f0.

In order to avoid further problems, such as the issue raised by the new
reference handling API, remove the Win32 l/stat() implementation.

Signed-off-by: Ramsay Jones <ramsay@ramsay1.demon.co.uk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-07-18 10:44:17 -07:00
Eric Sunshine
226ad3482a builtin: add git-check-mailmap command
Introduce command check-mailmap, similar to check-attr and check-ignore,
which allows direct testing of .mailmap configuration.

As plumbing accessible to scripts and other porcelain, check-mailmap
publishes the stable, well-tested .mailmap functionality employed by
built-in Git commands.  Consequently, script authors need not
re-implement .mailmap functionality manually, thus avoiding potential
quirks and behavioral differences.

Signed-off-by: Eric Sunshine <sunshine@sunshineco.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-07-13 10:19:37 -07:00
Junio C Hamano
04ce89389d Merge branch 'jk/bash-completion'
* jk/bash-completion:
  completion: learn about --man-path
  completion: handle unstuck form of base git options
2013-07-11 13:05:28 -07:00
Junio C Hamano
46b045917c Merge branch 'ed/color-prompt'
Code clean-up for in-prompt status script (in contrib/).

* ed/color-prompt:
  git-prompt.sh: add missing information in comments
  git-prompt.sh: do not print duplicate clean color code
  t9903: remove redundant tests
  git-prompt.sh: refactor colored prompt code
  t9903: add tests for git-prompt pcmode
2013-07-01 12:41:55 -07:00
John Keeping
66fb37d0c6 completion: learn about --man-path
Signed-off-by: John Keeping <john@keeping.me.uk>
Acked-by: SZEDER Gábor <szeder@ira.uka.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-06-30 15:59:10 -07:00
John Keeping
776009d1b2 completion: handle unstuck form of base git options
git-completion.bash's parsing of the command name relies on everything
preceding it starting with '-' unless it is the "-c" option.  This
allows users to use the stuck form of "--work-tree=<path>" and
"--namespace=<path>" but not the unstuck forms "--work-tree <path>" and
"--namespace <path>".  Fix this.

Similarly, the completion only handles the stuck form "--git-dir=<path>"
and not "--git-dir <path>", so fix this as well.

Signed-off-by: John Keeping <john@keeping.me.uk>
Acked-by: SZEDER Gábor <szeder@ira.uka.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-06-30 15:58:25 -07:00
Eduardo R. D'Avila
cf4cac4cfc git-prompt.sh: add missing information in comments
Mention that the command below is needed for prompt
in ZSH with PS1:
  setopt PROMPT_SUBST

Rephrase some parts that mention only the "current branch name"
being displayed in the prompt. Replace it by stating that
the "repository status" is displayed.

Make it clear that colored prompt is only available
in PROMPT_COMMAND/precmd mode.

With-suggestions-by: SZEDER Gábor <szeder@ira.uka.de>
Signed-off-by: Eduardo R. D'Avila <erdavila@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-06-26 13:03:01 -07:00
Eduardo R. D'Avila
15981f4eec git-prompt.sh: do not print duplicate clean color code
Do not print a duplicate clean color code when there
is no other indicators other than the current branch
in colored prompt.

Acked-by: SZEDER Gábor <szeder@ira.uka.de>
Signed-off-by: Eduardo R. D'Avila <erdavila@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-06-26 13:03:01 -07:00
Eduardo R. D'Avila
7fe9031920 git-prompt.sh: refactor colored prompt code
__git_ps1_colorize_gitstring() sets color codes and
builds the prompt gitstring. It has duplicated code
to handle color codes for bash and zsh shells.
__git_ps1() also has duplicated logic to build the
prompt gitstring.

Remove duplication of logic to build gitstring in
__git_ps1_colorize_gitstring() and __git_ps1().

Leave in __git_ps1_colorize_gitstring() only logic
to set color codes.

Signed-off-by: Eduardo R. D'Avila <erdavila@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-06-26 13:02:57 -07:00
SZEDER Gábor
a694258457 bash prompt: mention that PROMPT_COMMAND mode is faster
__git_ps1() is usually added to the prompt inside a command
substitution, imposing the overhead of fork()ing a subshell.  Using
__git_ps1() for $PROMPT_COMMAND is slightly faster, because it avoids
that command substitution.

Mention this in the comments about setting up the git prompt.

The whole series speeds up the bash prompt on Windows/MSysGit
considerably.  Here are some timing results in three scenarios, each
repeated 10 times:

At the top of the work tree, before:

    $ time for i in {0..9} ; do prompt="$(__git_ps1)" ; done

    real    0m1.716s
    user    0m0.301s
    sys     0m0.772s

  After:

    real    0m0.687s
    user    0m0.075s
    sys     0m0.396s

  After, from $PROMPT_COMMAND:

    $ time for i in {0..9} ; do __git_ps1 '\h:\w' '$ ' ; done

    real    0m0.546s
    user    0m0.075s
    sys     0m0.181s

At the top of the work tree, detached head, before:

    real    0m2.574s
    user    0m0.376s
    sys     0m1.207s

  After:

    real    0m1.139s
    user    0m0.151s
    sys     0m0.500s

  After, from $PROMPT_COMMAND:

    real    0m1.030s
    user    0m0.245s
    sys     0m0.336s

In a subdirectory, during rebase, stash status indicator enabled,
before:

    real    0m3.557s
    user    0m0.495s
    sys     0m1.767s

  After:

    real    0m0.717s
    user    0m0.120s
    sys     0m0.300s

  After, from $PROMPT_COMMAND:

    real    0m0.577s
    user    0m0.047s
    sys     0m0.258s

On Linux the speedup ratio is comparable to Windows, but overall it
was about an order of magnitude faster to begin with.  The last case
from above, repeated 100 times, before:

    $ time for i in {0..99} ; do prompt="$(__git_ps1)" ; done

    real    0m2.806s
    user    0m0.180s
    sys     0m0.264s

  After:

    real    0m0.857s
    user    0m0.020s
    sys     0m0.028s

Signed-off-by: SZEDER Gábor <szeder@ira.uka.de>
2013-06-24 18:03:37 +02:00
SZEDER Gábor
69a8141a5d bash prompt: avoid command substitution when finalizing gitstring
Before setting $PS1, __git_ps1() uses a command substitution to
redirect the output from a printf into a variable.  Spare the overhead
of fork()ing a subshell by using 'printf -v <var>' to directly assign
the output to that variable.

zsh's printf doesn't support the '-v <var>' option, so stick with the
command substitution when under zsh.

Signed-off-by: SZEDER Gábor <szeder@ira.uka.de>
2013-06-24 18:03:37 +02:00
SZEDER Gábor
14d7649748 bash prompt: avoid command substitution when checking for untracked files
When enabled, the bash prompt can indicate the presence of untracked
files with a '%' sign.  __git_ps1() checks for untracked files by running the
'$(git ls-files --others --exclude-standard)' command substitution,
and displays the indicator when there is no output.

Avoid this command substitution by additionally passing
'--error-unmatch *', and checking the command's return value.

Signed-off-by: SZEDER Gábor <szeder@ira.uka.de>
2013-06-24 18:03:37 +02:00
SZEDER Gábor
dd0b72cbd9 bash prompt: use bash builtins to check stash state
When the environment variable $GIT_PS1_SHOWSTASHSTATE is set
__git_ps1() checks the presence of stashes by running 'git rev-parse
--verify refs/stash'.  This command not only checks that the
'refs/stash' ref exists but also, well, verifies that it's a valid
ref.

However, we don't need to be that thorough for the bash prompt.  We
can omit that verification and only check whether 'refs/stash' exists
or not.  Since 'git pack-refs' never packs 'refs/stash', it's a matter
of checking the existence of a ref file.  Perform this check using
only bash builtins to spare the overhead of fork()+exec()ing a git
process.

Also run 'git pack-refs --all' in the corresponding test to document
that the prompt script depends on 'git pack-refs' not packing
'refs/stash' and to catch possible breakages should this behavior ever
change.

Signed-off-by: SZEDER Gábor <szeder@ira.uka.de>
2013-06-24 18:03:37 +02:00
SZEDER Gábor
0f37c12581 bash prompt: use bash builtins to check for unborn branch for dirty state
When the dirty work tree and index status indicator is enabled,
__git_ps1() checks for changes in the index by running 'git diff-index
--cached --quiet HEAD --' and looking at its exit code.  However, that
makes sense only when HEAD points to a valid commit: on an unborn
branch the failure of said command would be caused by the invalid
HEAD, not by changes in the index.  Therefore, __git_ps1() first
checks for a valid HEAD by running 'git rev-parse --quiet --verify
HEAD'.

Since the previous patch we implicitly check HEAD's validity by
running 'git rev-parse ... --short HEAD', making the dirty status
indicator's 'git rev-parse' check redundant.  It's sufficient to check
for non-emptyness of the variable holding the abbreviated commit
object name, thereby sparing the overhead of fork()+exec()ing a git
process.

Signed-off-by: SZEDER Gábor <szeder@ira.uka.de>
2013-06-24 18:03:37 +02:00
SZEDER Gábor
e3e0b9378b bash prompt: combine 'git rev-parse' for detached head
When describing a detached HEAD according to the $GIT_PS1_DESCRIBE
environment variable fails, __git_ps1() now runs the '$(git rev-parse
--short HEAD)' command substitution to get the abbreviated detached
HEAD commit object name.  This imposes the overhead of fork()ing a
subshell and fork()+exec()ing a git process.

Avoid this overhead by combining this command substitution with the
"main" 'git rev-parse' execution for getting the path to the .git
directory & co.  This means that we'll look for the abbreviated commit
object name even when it's not necessary, because we're on a branch or
the detached HEAD can be described.  It doesn't matter, however,
because once 'git rev-parse' is up and running to fulfill all those
other queries, the additional overhead of looking for the abbreviated
commit object name is not measurable because it's lost in the noise.

There is a caveat, however, when we are on an unborn branch, because
in that case HEAD doesn't point to a valid commit, hence the query for
the abbreviated commit object name fails.  Therefore, '--short HEAD'
must be the last options to 'git rev-parse' in order to get all the
other necessary information for the prompt even on an unborn branch.
Furthermore, in that case, and in that case only, 'git rev-parse'
doesn't output the last line containing the abbreviated commit object
name, obviously, so we have to take care to only parse it if 'git
rev-parse' exited without any error.

Although there are tests already excercising __git_ps1() on unborn
branches, they all do so implicitly.  Add a test that checks this
explicitly.

Signed-off-by: SZEDER Gábor <szeder@ira.uka.de>
2013-06-24 18:03:30 +02:00
SZEDER Gábor
efaa0c1532 bash prompt: combine 'git rev-parse' executions in the main code path
There are a couple of '$(git rev-parse --<opt>)' command substitutions
in __git_ps1() and three of them are executed in the main code path:

 - the first to get the path to the .git directory ('--git-dir'),
 - the second to check whether we're inside the .git directory
   ('--is-inside-git-dir'),
 - and the last, depending on the results of the second, either
   * to check whether it's a bare repo ('--is-bare-repository'), or
   * to check whether inside a work tree ('--is-inside-work-tree').

Naturally, this imposes the overhead of fork()ing three subshells and
fork()+exec()ing three git commands.

Combine these four 'git rev-parse' queries into a single one and use
bash parameter expansions to parse the combined output, i.e. to
separate the path to the .git directory from the true/false of
'--is-inside-git-dir', etc.  This way we can eliminate two of the
three subshells and git commands.

Signed-off-by: SZEDER Gábor <szeder@ira.uka.de>
2013-06-24 17:22:10 +02:00