1
0
Fork 0
mirror of https://github.com/git/git.git synced 2024-11-07 09:43:00 +01:00
Commit graph

5446 commits

Author SHA1 Message Date
Junio C Hamano
b81b758d50 Merge branch 'jk/fast-export-quote-path'
* jk/fast-export-quote-path:
  fast-export: quote paths in output
2011-08-11 11:03:16 -07:00
Junio C Hamano
5fb249aec7 Merge branch 'rs/grep-function-context'
* rs/grep-function-context:
  grep: long context options
  grep: add option to show whole function as context
2011-08-11 11:03:09 -07:00
Junio C Hamano
86c9cd8d25 Merge branch 'jl/submodule-update-quiet'
* jl/submodule-update-quiet:
  submodule: update and add must honor --quiet flag
2011-08-08 12:33:34 -07:00
Junio C Hamano
e85a43bc44 Merge branch 'js/ls-tree-error'
* js/ls-tree-error:
  Ensure git ls-tree exits with a non-zero exit code if read_tree_recursive fails.
  Add a test to check that git ls-tree sets non-zero exit code on error.
2011-08-08 12:33:34 -07:00
Junio C Hamano
75745bc704 Merge branch 'jk/reset-reflog-message-fix'
* jk/reset-reflog-message-fix:
  reset: give better reflog messages
2011-08-08 12:33:33 -07:00
Jeff King
6280dfdc3b fast-export: quote paths in output
Many pathnames in a fast-import stream need to be quoted. In
particular:

  1. Pathnames at the end of an "M" or "D" line need quoting
     if they contain a LF or start with double-quote.

  2. Pathnames on a "C" or "R" line need quoting as above,
     but also if they contain spaces.

For (1), we weren't quoting at all. For (2), we put
double-quotes around the paths to handle spaces, but ignored
the possibility that they would need further quoting.

This patch checks whether each pathname needs c-style
quoting, and uses it. This is slightly overkill for (1),
which doesn't actually need to quote many characters that
vanilla c-style quoting does. However, it shouldn't hurt, as
any implementation needs to be ready to handle quoted
strings anyway.

In addition to adding a test, we have to tweak a test which
blindly assumed that case (2) would always use
double-quotes, whether it needed to or not.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-08-05 15:56:54 -07:00
Johannes Sixt
1b57e56c61 Skip archive --remote tests on Windows
These depend on a working git-upload-archive, which is broken on Windows,
because it depends on fork().

Signed-off-by: Johannes Sixt <j6t@kdbg.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-08-03 10:16:20 -07:00
René Scharfe
ba8ea7496f grep: add option to show whole function as context
Add a new option, -W, to show the whole surrounding function of a match.

It uses the same regular expressions as -p and diff to find the beginning
of sections.

Currently it will not display comments in front of a function, but those
that are following one.  Despite this shortcoming it is already useful,
e.g. to simply see a more complete applicable context or to extract whole
functions.

Signed-off-by: Rene Scharfe <rene.scharfe@lsrfire.ath.cx>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-08-01 16:09:15 -07:00
Junio C Hamano
e06130c54c Merge branch 'vi/make-test-vector-less-specific'
* vi/make-test-vector-less-specific:
  tests: cleanup binary test vector files
2011-08-01 15:00:38 -07:00
Junio C Hamano
8ab19bc5de Merge branch 'jk/clone-detached'
* jk/clone-detached:
  clone: always fetch remote HEAD
  make copy_ref globally available
  consider only branches in guess_remote_head
  t: add tests for cloning remotes with detached HEAD
2011-08-01 15:00:35 -07:00
Junio C Hamano
59d9ba869e Merge branch 'sr/transport-helper-fix'
* sr/transport-helper-fix: (21 commits)
  transport-helper: die early on encountering deleted refs
  transport-helper: implement marks location as capability
  transport-helper: Use capname for refspec capability too
  transport-helper: change import semantics
  transport-helper: update ref status after push with export
  transport-helper: use the new done feature where possible
  transport-helper: check status code of finish_command
  transport-helper: factor out push_update_refs_status
  fast-export: support done feature
  fast-import: introduce 'done' command
  git-remote-testgit: fix error handling
  git-remote-testgit: only push for non-local repositories
  remote-curl: accept empty line as terminator
  remote-helpers: export GIT_DIR variable to helpers
  git_remote_helpers: push all refs during a non-local export
  transport-helper: don't feed bogus refs to export push
  git-remote-testgit: import non-HEAD refs
  t5800: document some non-functional parts of remote helpers
  t5800: use skip_all instead of prereq
  t5800: factor out some ref tests
  ...
2011-08-01 15:00:14 -07:00
Junio C Hamano
1df561fb48 Merge branch 'jc/maint-reset-unmerged-path'
* jc/maint-reset-unmerged-path:
  reset [<commit>] paths...: do not mishandle unmerged paths
2011-08-01 15:00:08 -07:00
Pete Wyckoff
4e2e6ce450 git-p4: commit time should be most recent p4 change time
When importing a repo, the time on the initial commit had been
just "now".  But this causes problems when trying to share among
git-p4 repos that were created identically, although at different
times.  Instead, use the time in the top-most p4 change as the
time for the git import commit.

Signed-off-by: Pete Wyckoff <pw@padd.com>
Acked-by: Luke Diamand <luke@diamand.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-08-01 10:24:20 -07:00
Pete Wyckoff
eab30818a9 git-p4: one test missing config git-p4.skipSubmitEditCheck
Add this missing line in one of the tests.  Otherwise, on fast
machines, the following git-p4 commit will complain that nobody
edited the submission message.

Signed-off-by: Pete Wyckoff <pw@padd.com>
Acked-by: Luke Diamand <luke@diamand.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-08-01 10:24:15 -07:00
Pete Wyckoff
83cf0fe49f git-p4: add missing && in test
Signed-off-by: Pete Wyckoff <pw@padd.com>
Acked-by: Luke Diamand <luke@diamand.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-08-01 10:23:54 -07:00
Pete Wyckoff
f40ae5cee6 git-p4: use test_when_finished in tests
Cleanup nicely when tests fail.  This avoids many duplicated
lines in the tests, and adds cleanup in a couple of tests that
did not have it.  When one fails, now all the rest will not
fail too.

Signed-off-by: Pete Wyckoff <pw@padd.com>
Acked-by: Luke Diamand <luke@diamand.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-08-01 10:23:38 -07:00
Junio C Hamano
b35acb5345 Merge branch 'maint'
* maint:
  Break down no-lstat() condition checks in verify_uptodate()
  t7400: fix bogus test failure with symlinked trash
  Documentation: clarify the invalidated tree entry format
2011-07-31 18:57:32 -07:00
Jeff King
dd008b3b11 t7400: fix bogus test failure with symlinked trash
One of the tests in t7400 fails if the trash directory has a
symlink anywhere in its path. E.g.:

  $ mkdir /tmp/git-test
  $ mkdir /tmp/git-test/real
  $ ln -s real /tmp/git-test/link

  $ ./t7400-submodule-basic --root=/tmp/git-test/real
  ...
  # passed all 44 test(s)

  $ ./t7400-submodule-basic --root=/tmp/git-test/link
  ...
  not ok - 41 use superproject as upstream when path is relative and no url is set there

The failing test does:

  git submodule add ../repo relative &&
  ...
  git submodule sync relative &&
  test "$(git config submodule.relative.url)" = "$submodurl/repo"

where $submodurl comes from the $TRASH_DIRECTORY the user
gave us. However, git will resolve symlinks when converting
the relative path into an absolute one, leading them to be
textually different (even though they point to the same
directory).

Fix this by asking pwd to canonicalize the name of the trash
directory for us.

Signed-off-by: Jeff King <peff@peff.net>
Acked-by: Jens Lehmann <Jens.Lehmann@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-07-31 18:40:34 -07:00
Jens Lehmann
7e60407f7a submodule: update and add must honor --quiet flag
When using the --quiet flag "git submodule update" and "git submodule add"
didn't behave as the documentation stated. They printed progress output
from the clone, even though they should only print error messages.

Fix that by passing the -q flag to git clone in module_clone() when the
GIT_QUIET variable is set. Two tests in t7400 have been modified to test
that behavior.

Reported-by: Daniel Holtmann-Rice <flyingtabmow@gmail.com>
Signed-off-by: Jens Lehmann <Jens.Lehmann@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-07-28 12:48:26 -07:00
Jon Seymour
04f89259a6 Ensure git ls-tree exits with a non-zero exit code if read_tree_recursive fails.
In the case of a corrupt repository, git ls-tree may report an error but
presently it exits with a code of 0.

This change uses the return code of read_tree_recursive instead.

Improved-by: Jens Lehmann <Jens.Lehmann@web.de>
Signed-off-by: Jon Seymour <jon.seymour@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-07-25 10:50:11 -07:00
Junio C Hamano
4db0d0d1ba Merge branch 'maint'
* maint:
  tests: print failed test numbers at the end of the test run
2011-07-24 16:23:01 -07:00
Jens Lehmann
2579e1d293 tests: print failed test numbers at the end of the test run
On modern multi-core processors "make test" is often run in multiple jobs.
If one of them fails the test run does stop, but the concurrently running
tests finish their run. It is rather easy to find out which test failed by
doing a "ls -d t/trash*". But that only works when you don't use the "-i"
option to "make test" because you want to get an overview of all failing
tests. In that case all thrash directories are deleted end and the
information which tests failed is lost.

If one or more tests failed, print a list of them before the test summary:

failed test(s): t1000 t6500

fixed   0
success 7638
failed  3
broken  49
total   7723

This makes it possible to just run the test suite with -i and collect all
failed test scripts at the end for further examination.

Signed-off-by: Jens Lehmann <Jens.Lehmann@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-07-24 11:55:14 -07:00
Jon Seymour
6c1c14480d Add a test to check that git ls-tree sets non-zero exit code on error.
Expected to fail at this commit, fixed by subsequent commit.

Additional tests of adhoc or uncategorised nature should be added to this
file.

Improved-by: Jens Lehmann <Jens.Lehmann@web.de>
Improved-by: Junio C Hamano <gitster@pobox.com>
Signed-off-by: Jon Seymour <jon.seymour@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-07-24 11:48:24 -07:00
Junio C Hamano
22f41286be Merge branch 'dc/stash-con-untracked'
* dc/stash-con-untracked:
  stash: Add --include-untracked option to stash and remove all untracked files

Conflicts:
	git-stash.sh
2011-07-22 14:46:28 -07:00
Junio C Hamano
c56dce3b81 Merge branch 'jl/submodule-add-relurl-wo-upstream'
* jl/submodule-add-relurl-wo-upstream:
  submodule add: clean up duplicated code
  submodule add: allow relative repository path even when no url is set
  submodule add: test failure when url is not configured in superproject

Conflicts:
	git-submodule.sh
2011-07-22 14:24:35 -07:00
Jeff King
d04520e344 reset: give better reflog messages
The reset command creates its reflog entry from argv.
However, it does so after having run parse_options, which
means the only thing left in argv is any non-option
arguments. Thus you would end up with confusing reflog
entries like:

  $ git reset --hard HEAD^
  $ git reset --soft HEAD@{1}
  $ git log -2 -g --oneline
  8e46cad HEAD@{0}: HEAD@{1}: updating HEAD
  1eb9486 HEAD@{1}: HEAD^: updating HEAD

However, we must also consider that some scripts may set
GIT_REFLOG_ACTION before calling reset, and we need to show
their reflog action (with our text appended). For example:

  rebase -i (squash): updating HEAD

On top of that, we also set the ORIG_HEAD reflog action
(even though it doesn't generally exist). In that case, the
reset argument is somewhat meaningless, as it has nothing to
do with what's in ORIG_HEAD.

This patch changes the reset reflog code to show:

  $GIT_REFLOG_ACTION: updating {HEAD,ORIG_HEAD}

as before, but only if GIT_REFLOG_ACTION is set. Otherwise,
show:

   reset: moving to $rev

for HEAD, and:

   reset: updating ORIG_HEAD

for ORIG_HEAD (this is still somewhat superfluous, since we
are in the ORIG_HEAD reflog, obviously, but at least we now
mention which command was used to update it).

While we're at it, we can clean up the code a bit:

 - Use strbufs to make the message.

 - Use the "rev" parameter instead of showing all options.
   This makes more sense, since it is the only thing
   impacting the writing of the ref.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-07-22 13:54:57 -07:00
Vitaliy Ivanov
b5967f820c tests: cleanup binary test vector files
The test4012.png test vector file that was originally used for t4012 to
check operations on binary files was later reused in other tests, making
it no longer consistent to name it after a specific test. Rename it to more
generic "test-binary-1.png".

While at it, rename test9200b to "test-binary-2.png" (even though it is
only used by t9200).

Signed-off-by: Vitaliy Ivanov <vitalivanov@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-07-19 12:04:47 -07:00
Sverre Rabbelier
9504bc9d5a transport-helper: change import semantics
Currently the helper must somehow guess how many import statements to
read before it starts outputting its fast-export stream. This is
because the remote helper infrastructure runs fast-import only once,
so the helper is forced to output one stream for all import commands
it will receive. The only reason this worked in the past was because
only one ref was imported at a time.

Change the semantics of the import statement such that it matches
that of the push statement. That is, the import statement is followed
by a series of import statements that are terminated by a '\n'.

Signed-off-by: Sverre Rabbelier <srabbelier@gmail.com>
Acked-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-07-19 11:17:48 -07:00
Sverre Rabbelier
be56862f19 fast-import: introduce 'done' command
Add a 'done' command that causes fast-import to stop reading from the
stream and exit.

If the new --done command line flag was passed on the command line
(or a "feature done" declaration included at the start of the stream),
make the 'done' command mandatory.  So "git fast-import --done"'s
input format will be prefix-free, making errors easier to detect when
they show up as early termination at some convenient time of the
upstream of a pipe writing to fast-import.

Another possible application of the 'done' command would to be allow a
fast-import stream that is only a small part of a larger encapsulating
stream to be easily parsed, leaving the file offset after the "done\n"
so the other application can pick up from there.  This patch does not
teach fast-import to do that --- fast-import still uses buffered input
(stdio).

Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Sverre Rabbelier <srabbelier@gmail.com>
Acked-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-07-19 11:17:47 -07:00
Jeff King
b4b872994b git_remote_helpers: push all refs during a non-local export
When a remote helper exports to a non-local git repo, the
steps are roughly:

  1. fast-export into a local staging area; the set of
     interesting refs is defined by what is in the fast-export
     stream

  2. git push from the staging area to the non-local repo

In the second step, we should explicitly push all refs, not
just matching ones. This will let us push refs that do not
yet exist in the remote repo.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Sverre Rabbelier <srabbelier@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-07-19 11:17:47 -07:00
Jeff King
3ea7d09461 transport-helper: don't feed bogus refs to export push
When we want to push to a remote helper that has the
"export" capability, we collect all of the refs we want to
push and then feed them to fast-export.

However, the list of refs is actually a list of remote refs,
not local refs. The mapped local refs are included via the
peer_ref pointer. So when we add an argument to our
fast-export command line, we must be sure to use the local
peer_ref name (and if there is no local name, it is because
we are not actually sending that ref, or we may not even
have the ref at all).

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Sverre Rabbelier <srabbelier@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-07-19 11:17:47 -07:00
Jeff King
4e51ba238f git-remote-testgit: import non-HEAD refs
Upon receiving an "import" command, the testgit remote
helper would ignore the ref asked for by git and generate a
fast-export stream based on HEAD. Instead, we should
actually give git the ref it asked for.

This requires adding a new parameter to the export_repo
method in the remote-helpers python library, which may be
used by code outside of git.git. We use a default parameter
so that callers without the new parameter will get the same
behavior as before.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Sverre Rabbelier <srabbelier@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-07-19 11:17:47 -07:00
Jeff King
c00dd33b1f t5800: document some non-functional parts of remote helpers
These are all things one might expect to work in a helper
that is capable of handling multiple branches (which our
testgit helper in theory should be able to do, as it is
backed by git). All of these bugs are specific to the
import/export codepaths, so they don't affect helpers like
git-remote-curl that use fetch/push commands.

The first and fourth tests are about fetching and pushing
new refs, and demonstrate bugs in the git_remote_helpers
library (so they would be most likely to impact helpers for
other VCSs which import/export git).

The second test is about importing multiple refs; it
demonstrates a bug in git-remote-testgit, which is mostly
for exercising the test code. Therefore it probably doesn't
affect anyone in practice.

The third test demonstrates a bug in git's side of the
helper code when the upstream has added refs that we do not
have locally. This could impact git users who use remote
helpers to access foreign VCSs.

All of those bugs have fixes later in this series.

The fifth test is the most complex, and does not have a fix
in this series. It tests pushing a ref via the export
mechanism to a new name on the remote side (i.e.,
"git push $remote old:new").

The problem is that we push all of the work of generating
the export stream onto fast-export, but we have no way of
communicating to fast-export that this name mapping is
happening. So we tell fast-export to generate a stream with
the commits for "old", but we can't tell it to label them
all as "new".

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Sverre Rabbelier <srabbelier@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-07-19 11:17:47 -07:00
Sverre Rabbelier
760fec7d7e t5800: use skip_all instead of prereq
All tests require python 2.4 or higher.

Signed-off-by: Sverre Rabbelier <srabbelier@gmail.com>
Acked-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-07-19 11:17:46 -07:00
Jeff King
5cf5ade371 t5800: factor out some ref tests
These are a little hard to read, and I'm about to add more
just like them. Plus the failure output is nicer if we use
test_cmp than a comparison with "test".

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Sverre Rabbelier <srabbelier@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-07-19 11:17:46 -07:00
Junio C Hamano
d907bf8ef3 Merge branch 'jc/index-pack'
* jc/index-pack:
  verify-pack: use index-pack --verify
  index-pack: show histogram when emulating "verify-pack -v"
  index-pack: start learning to emulate "verify-pack -v"
  index-pack: a miniscule refactor
  index-pack --verify: read anomalous offsets from v2 idx file
  write_idx_file: need_large_offset() helper function
  index-pack: --verify
  write_idx_file: introduce a struct to hold idx customization options
  index-pack: group the delta-base array entries also by type

Conflicts:
	builtin/verify-pack.c
	cache.h
	sha1_file.c
2011-07-19 09:54:51 -07:00
Junio C Hamano
0591c0a5be Merge branch 'jc/submodule-sync-no-auto-vivify'
* jc/submodule-sync-no-auto-vivify:
  submodule add: always initialize .git/config entry
  submodule sync: do not auto-vivify uninteresting submodule

Conflicts:
	git-submodule.sh
2011-07-19 09:45:37 -07:00
Junio C Hamano
765c7e4f31 Merge branch 'jk/archive-tar-filter'
* jk/archive-tar-filter:
  upload-archive: allow user to turn off filters
  archive: provide builtin .tar.gz filter
  archive: implement configurable tar filters
  archive: refactor file extension format-guessing
  archive: move file extension format-guessing lower
  archive: pass archiver struct to write_archive callback
  archive: refactor list of archive formats
  archive-tar: don't reload default config options
  archive: reorder option parsing and config reading
2011-07-19 09:45:32 -07:00
Junio C Hamano
ff94409da9 Merge branch 'jk/clone-cmdline-config'
* jk/clone-cmdline-config:
  clone: accept config options on the command line
  config: make git_config_parse_parameter a public function
  remote: use new OPT_STRING_LIST
  parse-options: add OPT_STRING_LIST helper
2011-07-19 09:45:24 -07:00
Junio C Hamano
fe01ef31b7 Merge branch 'jk/maint-config-param'
* jk/maint-config-param:
  config: use strbuf_split_str instead of a temporary strbuf
  strbuf: allow strbuf_split to work on non-strbufs
  config: avoid segfault when parsing command-line config
  config: die on error in command-line config
  fix "git -c" parsing of values with equals signs
  strbuf_split: add a max parameter
2011-07-19 09:45:21 -07:00
Junio C Hamano
20a80d04a4 Merge branch 'jk/tag-list-multiple-patterns'
* jk/tag-list-multiple-patterns:
  tag: accept multiple patterns for --list
2011-07-19 09:45:15 -07:00
Junio C Hamano
ff00b682f2 reset [<commit>] paths...: do not mishandle unmerged paths
Because "diff --cached HEAD" showed an incorrect blob object name on the
LHS of the diff, we ended up updating the index entry with bogus value,
not what we read from the tree.

Noticed by John Nowak.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-07-13 21:39:18 -07:00
Junio C Hamano
13ac90a478 Merge branch 'bc/submodule-foreach-stdin-fix-1.7.4'
* 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
2011-07-13 14:31:37 -07:00
Junio C Hamano
182f228930 Merge branch 'jl/maint-fetch-recursive-fix'
* jl/maint-fetch-recursive-fix:
  fetch: Also fetch submodules in subdirectories in on-demand mode
2011-07-13 14:31:37 -07:00
Junio C Hamano
23f229d8cd Merge branch 'aw/rebase-i-p'
* aw/rebase-i-p:
  rebase -i -p: include non-first-parent commits in todo list
2011-07-13 14:31:36 -07:00
Junio C Hamano
6389a79dd4 Merge branch 'jc/no-gitweb-test-without-cgi-etc'
* jc/no-gitweb-test-without-cgi-etc:
  t/gitweb-lib.sh: skip gitweb tests when perl dependencies are not met
2011-07-13 14:31:36 -07:00
Junio C Hamano
ff968f03e6 Merge branch 'fg/submodule-keep-updating'
* fg/submodule-keep-updating:
  git-submodule.sh: clarify the "should we die now" logic
  submodule update: continue when a checkout fails
  git-sh-setup: add die_with_status

Conflicts:
	git-submodule.sh
2011-07-13 14:31:35 -07:00
Brandon Casey
4dca1aa650 git-submodule.sh: preserve stdin for the command spawned by foreach
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>
2011-06-29 18:25:49 -07:00
Brandon Casey
91cd7e4b42 t/t7407: demonstrate that the command called by 'submodule foreach' loses stdin
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>
2011-06-29 18:24:40 -07:00
Junio C Hamano
9901923cf0 Merge branch 'jc/streaming-filter' into next
* jc/streaming-filter:
  t0021: test application of both crlf and ident
  t0021-conversion.sh: fix NoTerminatingSymbolAtEOF test
  streaming: filter cascading
  streaming filter: ident filter
  Add LF-to-CRLF streaming conversion
  stream filter: add "no more input" to the filters
  Add streaming filter API
  convert.h: move declarations for conversion from cache.h
2011-06-29 17:09:28 -07:00