Commit Graph

24 Commits

Author SHA1 Message Date
Junio C Hamano
e1ef3c1d21 Merge branch 'gb/shell-ext' into next
* gb/shell-ext:
  shell: Display errors from improperly-formatted command lines
2010-08-27 10:44:29 -07:00
Greg Brockman
9f29fe9a77 shell: Display errors from improperly-formatted command lines
The interface for split_cmdline has changed such that the caller holds
responsibility for printing any error messages.  This patch changes
the git shell to print these error messages as appropriate.

Signed-off-by: Greg Brockman <gdb@mit.edu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-08-27 10:43:59 -07:00
Junio C Hamano
fb6a7cfba1 Merge branch 'ab/test' into next
* ab/test:
  tests: simplify "missing PREREQ" message
  t/t0000-basic.sh: Run the passing TODO test inside its own test-lib
  test-lib: Allow overriding of TEST_DIRECTORY
  test-lib: Use "$GIT_BUILD_DIR" instead of "$TEST_DIRECTORY"/../
  test-lib: Use $TEST_DIRECTORY or $GIT_BUILD_DIR instead of $(pwd) and ../
  tests: locate i18n lib&data correctly under --valgrind
  gettext: setlocale(LC_CTYPE, "") breaks Git's C function assumptions
  tests: rename test to work around GNU gettext bug
  Add infrastructure for translating Git with gettext

Conflicts:
	fast-import.c
	perl/Makefile
	shell.c
2010-08-26 16:43:35 -07:00
Ramkumar Ramachandra
70256a3a67 shell: Rewrite documentation and improve error message
Update the documentation of 'git shell' to mention the interactive
mode and COMMAND_DIR. Also provide a hint when interactive mode is not
available in the shell.

Signed-off-by: Ramkumar Ramachandra <artagnon@gmail.com>
Reviewed-by: Greg Brockman <gdb@MIT.EDU>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-08-24 10:47:21 -07:00
Greg Brockman
e69164ddb9 Add interactive mode to git-shell for user-friendliness
Signed-off-by: Greg Brockman <gdb@mit.edu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-08-12 15:16:31 -07:00
Greg Brockman
2dbc887eaa Allow creation of arbitrary git-shell commands
This provides a mechanism for the server to expose custom
functionality to clients.  My particular use case is that I would like
a way of discovering all repositories available for cloning.  A
client that clones via

  git clone user@example.com

can invoke a command by

  ssh user@example.com $command

Signed-off-by: Greg Brockman <gdb@mit.edu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-08-12 15:16:15 -07:00
Ævar Arnfjörð Bjarmason
a9ef3e3cfd Add infrastructure for translating Git with gettext
All of the interface messages in Git core are currently hardcoded in
English. Change that by optionally enabling translation of the core C,
Shell and Perl programs via GNU or SunOS gettext. If you set the
appropriate LC_* variables Git will speak your language, provided that
someone has submitted a translation.

If gettext isn't available, or if Git is compiled with
NO_GETTEXT=YesPlease, then Git fall back on its previous behavior of
only speaking English. When using ./configure the autoconf script will
auto-detect if the gettext libraries are installed and act
appropriately.

With NO_GETTEXT=YesPlease gettext support will be #defined away for C
programs. For Shell and Perl programs we rely on the git message
catalog not being available. That's a reasonable assumption since then
the message catalog won't be installed on the system during make
install.

The gettext wrappers that are provided in the patch are only the bare
minimum required to begin translation work. In particular I haven't
added wrappers for the gettext functions that enable plural support,
or those that provide message context (msgctxt).

Those can be added later. The intent is to start with a small subset
and see what we need later, not to start with something that's
unnecessarily large right away.

Implementation and usage notes:

 * General:

   Gettext .mo files will be installed and looked for in the standard
   $(prefix)/share/locale path. GIT_TEXTDOMAINDIR can also be set to
   override that, but that's only intended to be used to test Git
   itself.

 * Perl:

   Perl code that wants to be localized should use the new Git::I18n
   module. It imports a __ function into the caller's package by
   default.

   Instead of using the high level Locale::TextDomain interface I've
   opted to use the low-level (equivalent to the C interface)
   Locale::Messages module, which Locale::TextDomain itself uses.

   Locale::TextDomain does a lot of redundant work we don't need, and
   some of it would potentially introduce bugs. It tries to set the
   $TEXTDOMAIN based on package of the caller, and has its own
   hardcoded paths where it'll search for messages.

   I found it easier just to completely avoid it rather than try to
   circumvent its behavior. In any case, this is an issue wholly
   internal Git::I18N. Its guts can be changed later if that's deemed
   necessary.

   See <AANLkTilYD_NyIZMyj9dHtVk-ylVBfvyxpCC7982LWnVd@mail.gmail.com>
   for a further elaboration on this topic.

 * Shell:

   Shell code that's to be localized should use the new git-sh-i18n
   library. It's just a wrapper for the system's gettext.sh.

   If gettext.sh isn't available we'll fall back gettext(1) if it's
   available. The latter is available without the former on Solaris,
   which has its own non-GNU gettext implementation. We also need to
   emulate eval_gettext() there.

   If neither are present we'll use a dumb printf(1) fall-through
   wrapper.

   I originally tried to detect if the system supported `echo -n' but
   I found this to be a waste of time. My benchmarks on Linux, Solaris
   and FreeBSD reveal that printf(1) is fast enough, especially since
   we aren't calling gettext() from within any tight loops, and
   unlikely to ever do so.

This series has been tested by me on Ubuntu 10.04, Debian testing,
FreeBSD 8.1 and SunOS 5.10, and by others on Mac OS X 10.6.3 (with
Xcode 3.2.2) and openSUSE Factory (11.3, milestone 7).

SunOS has its own non-GNU gettext implementation which this patch
supports, although that may change in the future if it turns out that
we need some GNU libintl features that SunOS doesn't provide.

This patch is based on work by Jeff Epler <jepler@unpythonic.net> who
did the initial Makefile / C work, and a lot of comments from the Git
mailing list, including Jonathan Nieder, Jakub Narebski, Johannes
Sixt, Peter Krefting, Junio C Hamano, Thomas Rast and others.

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Tested-By: John Wiegley <johnw@newartisans.com>
Tested-by: Graham Anderson <graham.anderson@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-07-12 07:58:24 -07:00
Thomas Rast
d824cbba02 Convert existing die(..., strerror(errno)) to die_errno()
Change calls to die(..., strerror(errno)) to use the new die_errno().

In the process, also make slight style adjustments: at least state
_something_ about the function that failed (instead of just printing
the pathname), and put paths in single quotes.

Signed-off-by: Thomas Rast <trast@student.ethz.ch>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-06-27 11:14:53 -07:00
Erik Broes
79f72b9763 git-shell: Add 'git-upload-archive' to allowed commands.
This allows for example gitosis to allow use of 'git archive --remote' in a
controlled environment.

Signed-off-by: Erik Broes <erikbroes@ripe.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-04-11 11:01:15 -07:00
Junio C Hamano
445cac18c0 Merge branch 'maint'
* maint:
  tutorial: gentler illustration of Alice/Bob workflow using gitk
  pretty=format: respect date format options
  make git-shell paranoid about closed stdin/stdout/stderr
  Document gitk --argscmd flag.
  Fix '--dirstat' with cross-directory renaming
  for-each-ref: Allow a trailing slash in the patterns
2008-08-29 00:16:39 -07:00
Paolo Bonzini
0cfeed2e1d make git-shell paranoid about closed stdin/stdout/stderr
It is in general unsafe to start a program with one or more of file
descriptors 0/1/2 closed.  Karl Chen for example noticed that stat_command
does this in order to rename a pipe file descriptor to 0:

    dup2(from, 0);
    close(from);

... but if stdin was closed (for example) from == 0, so that

    dup2(0, 0);
    close(0);

just ends up closing the pipe.  Another extremely rare but nasty problem
would occur if an "important" file ends up in file descriptor 2, and is
corrupted by a call to die().

Fixing this in git was considered to be overkill, so this patch works
around it only for git-shell.  The fix is simply to open all the "low"
descriptors to /dev/null in main.

Signed-off-by: Paolo Bonzini <bonzini@gnu.org>
Acked-by: Stephen R. van den Berg <srb@cuci.nl>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-08-29 00:14:29 -07:00
Junio C Hamano
1e7abc593d Revert "Build-in "git-shell""
This reverts commit daa0cc9a92.
It was a stupid idea to do this; when run as a log-in shell,
it is spawned with argv[0] set to "-git-shell", so the usual
name-based dispatch would not work to begin with.
2008-08-25 22:39:17 -07:00
Junio C Hamano
daa0cc9a92 Build-in "git-shell"
This trivially makes "git-shell" a built-in.  It makes the executable even
fatter, though.

And MinGW removed git-shell only because of the funny dependencies; there
is no reason to do so anymore.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
Tested-on-MinGW-by: Johannes Sixt <johannes.sixt@telecom.at>
2008-08-20 01:36:10 -07:00
Junio C Hamano
4cfc24afc9 shell: do not play duplicated definition games to shrink the executable
Playing with linker games to shrink git-shell did not go well with various
other platforms and compilers.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-08-19 18:05:39 -07:00
Johannes Sixt
e1464ca7bb Record the command invocation path early
We will need the command invocation path in system_path(). This path was
passed to setup_path(), but  system_path() can be called earlier, for
example via:

    main
      commit_pager_choice
        setup_pager
          git_config
            git_etc_gitconfig
              system_path

Therefore, we introduce git_set_argv0_path() and call it as soon as
possible.

Signed-off-by: Johannes Sixt <johannes.sixt@telecom.at>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-07-25 17:41:13 -07:00
Dmitry Potapov
5b8e6f85f9 shrink git-shell by avoiding redundant dependencies
A lot of modules that have nothing to do with git-shell functionality
were linked in, bloating git-shell more than 8 times.

This patch cuts off redundant dependencies by:
1. providing stubs for three functions that make no sense for git-shell;
2. moving quote_path_fully from environment.c to quote.c to make the
   later self sufficient;
3. moving make_absolute_path into a new separate file.

The following numbers have been received with the default optimization
settings on master using GCC 4.1.2:

Before:
   text    data     bss     dec     hex filename
 143915    1348   93168  238431   3a35f git-shell

After:
   text    data     bss     dec     hex filename
  17670     788    8232   26690    6842 git-shell

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-06-27 23:22:00 -07:00
Junio C Hamano
bc7c73e29c git-shell: accept "git foo" form
This is a backport of 0a47dc110e
to 'maint' to be included in 1.5.6.2 so that older server side
can accept dashless form of request when clients are updated.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-06-26 16:51:23 -07:00
Scott R Parish
e8f5d87056 shell should call the new setup_path() to setup $PATH
Shell currently does its own manual thing for setting up the $PATH;
it can now call setup_path().

Signed-off-by: Scott R Parish <srp@srparish.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-10-29 20:51:37 -07:00
Johannes Schindelin
0c696fe7f4 Support cvs via git-shell
This adds cvs support to the git-shell; You can now give new users
a restricted git-shell and they still can commit via git's cvs
emulator.

Note that either the gecos information must be accurate, or you must
provide a $HOME/.gitconfig with the appropriate user credentials.
Since the git-shell is too restricted to allow the user to do it
(on purpose!), it is up to the administrator to take care of that.

Based on an idea by Jan Wielemaker.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Lars Hjemli <hjemli@gmail.com>
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
2007-10-15 21:25:42 -04:00
Junio C Hamano
cc44c7655f Mechanical conversion to use prefixcmp()
This mechanically converts strncmp() to use prefixcmp(), but only when
the parameters match specific patterns, so that they can be verified
easily.  Leftover from this will be fixed in a separate step, including
idiotic conversions like

    if (!strncmp("foo", arg, 3))

  =>

    if (!(-prefixcmp(arg, "foo")))

This was done by using this script in px.perl

   #!/usr/bin/perl -i.bak -p
   if (/strncmp\(([^,]+), "([^\\"]*)", (\d+)\)/ && (length($2) == $3)) {
           s|strncmp\(([^,]+), "([^\\"]*)", (\d+)\)|prefixcmp($1, "$2")|;
   }
   if (/strncmp\("([^\\"]*)", ([^,]+), (\d+)\)/ && (length($1) == $3)) {
           s|strncmp\("([^\\"]*)", ([^,]+), (\d+)\)|(-prefixcmp($2, "$1"))|;
   }

and running:

   $ git grep -l strncmp -- '*.c' | xargs perl px.perl

Signed-off-by: Junio C Hamano <junkio@cox.net>
2007-02-20 22:03:15 -08:00
Junio C Hamano
9201c70742 Const tightening.
Mark Wooding noticed there was a type mismatch warning in git.c; this
patch does things slightly differently (mostly tightening const) and
was what I was holding onto, waiting for the setup-revisions change
to be merged into the master branch.

Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-03-05 02:47:29 -08:00
Michal Ostrowski
77cb17e940 Exec git programs without using PATH.
The git suite may not be in PATH (and thus programs such as
git-send-pack could not exec git-rev-list).  Thus there is a need for
logic that will locate these programs.  Modifying PATH is not
desirable as it result in behavior differing from the user's
intentions, as we may end up prepending "/usr/bin" to PATH.

- git C programs will use exec*_git_cmd() APIs to exec sub-commands.
- exec*_git_cmd() will execute a git program by searching for it in
  the following directories:
	1. --exec-path (as used by "git")
	2. The GIT_EXEC_PATH environment variable.
	3. $(gitexecdir) as set in Makefile (default value $(bindir)).
- git wrapper will modify PATH as before to enable shell scripts to
  invoke "git-foo" commands.

Ideally, shell scripts should use the git wrapper to become independent
of PATH, and then modifying PATH will not be necessary.

[jc: with minor updates after a brief review.]

Signed-off-by: Michal Ostrowski <mostrows@watson.ibm.com>
Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-01-13 16:49:01 -08:00
Junio C Hamano
ab5f86275c shell.c: complain on insufficient arguments.
Originally noticed by Tommi Virtanen, but done slightly differently.

Signed-off-by: Junio C Hamano <junkio@cox.net>
2005-11-25 20:57:02 -08:00
Linus Torvalds
35eb2d3641 Add git-shell.
This adds a very git specific restricted shell, that can be
added to /etc/shells and set to the pw_shell in the /etc/passwd
file, to give users ability to push into repositories over ssh
without giving them full interactive shell acount.

[jc: I updated Linus' patch to match what the current sq_quote()
 does.]

Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
2005-10-24 15:12:41 -07:00