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2011-07-13Merge branch 'bc/submodule-foreach-stdin-fix-1.7.4'Libravatar Junio C Hamano1-0/+18
* bc/submodule-foreach-stdin-fix-1.7.4: git-submodule.sh: preserve stdin for the command spawned by foreach t/t7407: demonstrate that the command called by 'submodule foreach' loses stdin Conflicts: git-submodule.sh
2011-06-29git-submodule.sh: preserve stdin for the command spawned by foreachLibravatar Brandon Casey1-2/+2
The user-supplied command spawned by 'submodule foreach' loses its connection to the original standard input. Instead, it is connected to the output of a pipe within the git-submodule script. The user-supplied command supplied to 'submodule foreach' is spawned within a while loop which is being piped into. Due to the way shells implement piping output to a while loop, a subshell is created with its standard input attached to the output of the pipe. This results in all of the commands executed within the while loop to have their stdins modified in the same way, including the user-supplied command. This can cause a problem if the command requires reading from stdin or if it changes its behavior based on whether stdin is a tty or not. For example, this problem was noticed when trying to execute the following: git submodule foreach git shortlog --since=two.weeks.ago which printed a message about entering the first submodule and produced no further output and exited with a status of zero. In this case, shortlog detected that it was not connected to a tty, and since no revision was supplied as an argument, it attempted to read the list of revisions from standard input. Instead, it slurped up the list of submodules that was being piped to the enclosing while loop and caused that loop to end early without processing the remaining submodules. Work around this behavior by saving the original standard input file descriptor before the while loop, and restoring it when spawning the user-supplied command. This fixes the tests in t7407. Signed-off-by: Brandon Casey <drafnel@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-06-29t/t7407: demonstrate that the command called by 'submodule foreach' loses stdinLibravatar Brandon Casey1-0/+18
The user-supplied command spawned by 'submodule foreach' loses its connection to the original standard input. Instead, it is connected to the output of a pipe within the git-submodule script. This can cause a problem if the command requires reading from stdin or if it changes its behavior based on whether stdin is a tty or not (e.g. git shortlog). Demonstrate this flaw. Signed-off-by: Brandon Casey <drafnel@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-05-21i18n: git-submodule "Entering [...]" messageLibravatar Ævar Arnfjörð Bjarmason1-2/+2
Gettextize the "Entering [...]" message. This is explicitly tested for so we need to skip a portion of a test with test_i18ncmp. Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-02-07t7407: fix line endings for mingw buildLibravatar Pat Thoyts1-0/+4
Signed-off-by: Pat Thoyts <patthoyts@users.sourceforge.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-11-03submodule: only preserve flags across recursive status/update invocationsLibravatar Kevin Ballard1-0/+34
Recursive invocations of submodule update/status preserve all arguments, so executing git submodule update --recursive -- foo attempts to recursively update a submodule named "foo". Naturally, this fails as one cannot have an infinitely-deep stack of submodules each containing a submodule named "foo". The desired behavior is instead to update foo and then recursively update all submodules inside of foo. This commit accomplishes that by only saving the flags for use in the recursive invocation. Signed-off-by: Kevin Ballard <kevin@sb.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-11-03submodule: preserve all arguments exactly when recursingLibravatar Kevin Ballard1-0/+16
Shell variables only hold strings, not lists of parameters, so $orig_args after orig_args="$@" fails to remember where each parameter starts and ends, if some include whitespace. So git submodule update \ --reference='/var/lib/common objects.git' \ --recursive --init becomes git submodule update --reference=/var/lib/common \ objects.git --recursive --init in the inner repositories. Use "git rev-parse --sq-quote" to save parameters in quoted form ready for evaluation by the shell, avoiding this problem. Helped-By: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: Kevin Ballard <kevin@sb.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-09-03t7406 & t7407: add missing && at end of linesLibravatar Jens Lehmann1-2/+2
Signed-off-by: Jens Lehmann <Jens.Lehmann@web.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-05-25git-submodule foreach: Add $toplevel variableLibravatar Ævar Arnfjörð Bjarmason1-3/+7
Add a $toplevel variable accessible to `git submodule foreach`, it contains the absolute path of the top level directory (where .gitmodules is). This makes it possible to e.g. read data in .gitmodules from within foreach commands. I'm using this to configure the branch names I want to track for each submodule: git submodule foreach 'git checkout $(git config --file $toplevel/.gitmodules submodule.$name.branch) && git pull' For a little history: This patch is borne out of my continuing fight of trying to have Git track the branches of submodules, not just their commits. Obviously that's not how they work (they only track commits), but I'm just interested in being able to do: git submodule foreach 'git pull' Of course that won't work because the submodule is in a disconnected head, so I first have to connect it, but connect it *to what*. For a while I was happy with this because as fate had it, it just so happened to do what I meant: git submodule foreach 'git checkout $(git describe --all --always) && git pull' But then that broke down, if there's a tag and a branch the tag will win out, and I can't git pull a branch: $ git branch -a * master remotes/origin/HEAD -> origin/master remotes/origin/master $ git tag -l release-0.0.6 $ git describe --always --all release-0.0.6 So I figured that I might as well start tracking the branches I want in .gitmodules itself: [submodule "yaml-mode"] path = yaml-mode url = git://github.com/yoshiki/yaml-mode.git branch = master So now I can just do (as stated above): git submodule foreach 'git checkout $(git config --file $toplevel/.gitmodules submodule.$name.branch) && git pull' Maybe there's a less painful way to do *that* (I'd love to hear about it). But regardless of that I think it's a good idea to be able to know what the top-level is from git submodule foreach. Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-08-20git clone: Add --recursive to automatically checkout (nested) submodulesLibravatar Johan Herland1-0/+12
Many projects using submodules expect all submodules to be checked out in order to build/work correctly. A common command sequence for developers on such projects is: git clone url/to/project cd project git submodule update --init (--recursive) This patch introduces the --recursive option to git-clone. The new option causes git-clone to recursively clone and checkout all submodules of the cloned project. Hence, the above command sequence can be reduced to: git clone --recursive url/to/project --recursive is ignored if no checkout is done by the git-clone. The patch also includes documentation and a selftest. Signed-off-by: Johan Herland <johan@herland.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-08-20t7407: Use 'rev-parse --short' rather than bash's substring expansion notationLibravatar Johan Herland1-2/+4
The substring expansion notation is a bashism that we have not so far adopted. Use 'git rev-parse --short' instead, as this also handles the case where the unique abbreviation is longer than 7 characters. Also fix the typo; the object name for submodule #2 was copied from submodule #1's by mistake. Suggested-by: Brandon Casey <casey@nrlssc.navy.mil> Signed-off-by: Johan Herland <johan@herland.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-08-18git submodule status: Add --recursive to recurse into nested submodulesLibravatar Johan Herland1-0/+26
In very large and hierarchically structured projects, one may encounter nested submodules. In these situations, it is valuable to not only show status for all the submodules in the current repo (which is what is currently done by 'git submodule status'), but also to show status for all submodules at all levels (i.e. recursing into nested submodules as well). This patch teaches the new --recursive option to the 'git submodule status' command. The patch also includes documentation and selftests. Signed-off-by: Johan Herland <johan@herland.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-08-18git submodule update: Introduce --recursive to update nested submodulesLibravatar Johan Herland1-0/+19
In very large and hierarchically structured projects, one may encounter nested submodules. In these situations, it is valuable to not only update the submodules in the current repo (which is what is currently done by 'git submodule update'), but also to operate on all submodules at all levels (i.e. recursing into nested submodules as well). This patch teaches the new --recursive option to the 'git submodule update' command. The patch also includes documentation and selftests. Signed-off-by: Johan Herland <johan@herland.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-08-18git submodule foreach: Add --recursive to recurse into nested submodulesLibravatar Johan Herland1-0/+99
In very large and hierarchically structured projects, one may encounter nested submodules. In these situations, it is valuable to not only operate on all the submodules in the current repo (which is what is currently done by 'git submodule foreach'), but also to operate on all submodules at all levels (i.e. recursing into nested submodules as well). This patch teaches the new --recursive option to the 'git submodule foreach' command. The patch also includes documentation and selftests. Signed-off-by: Johan Herland <johan@herland.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-08-18git submodule foreach: test access to submodule name as '$name'Libravatar Johan Herland1-3/+3
Add verification of the behaviour of '$name' to the git submodule foreach selftest. Signed-off-by: Johan Herland <johan@herland.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-08-18Add selftest for 'git submodule foreach'Libravatar Johan Herland1-0/+79
The selftest verifies that: - only checked out submodules are visited by 'git submodule foreach' - the $path, and $sha1 variables are set correctly for each submodule Signed-off-by: Johan Herland <johan@herland.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>