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* jc/maint-apply-fix:
builtin-apply.c: do not set bogus mode in check_preimage() for deleted path
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If it is deleted, it is deleted. Do not set the current mode to it.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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* am/maint-push-doc:
Documentation: rework src/dst description in git push
Documentation: more git push examples
Documentation: simplify refspec format description
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This tries to make the description of ref matching in git push easier
to read. Beauty is in the eye of the beholder, though.
Signed-off-by: Anders Melchiorsen <mail@cup.kalibalik.dk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Include examples of using HEAD. The order of examples
introduces new concepts one by one. This pushes the
example of deleting a ref to the end of the list.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The refspec format description was a mix of regexp and BNF, making it
very difficult to read. The format was also wrong: it did not show
that each part of a refspec is optional in different situations.
Rather than having a confusing grammar, just present the format in
informal prose.
Signed-off-by: Anders Melchiorsen <mail@cup.kalibalik.dk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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* jc/maint-allow-uninteresting-missing:
revision traversal: allow UNINTERESTING objects to be missing
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Most of the existing codepaths were meant to treat missing uninteresting
objects to be a silently ignored non-error, but there were a few places
in handle_commit() and add_parents_to_list(), which are two key functions
in the revision traversal machinery, that cared:
- When a tag refers to an object that we do not have, we barfed. We
ignore such a tag if it is painted as UNINTERESTING with this change.
- When digging deeper into the ancestry chain of a commit that is already
painted as UNINTERESTING, in order to paint its parents UNINTERESTING,
we barfed if parse_parent() for a parent commit object failed. We can
ignore such a parent commit object.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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* jg/tag-contains:
git-tag: Add --contains option
Make has_commit() non-static
Make opt_parse_with_commit() non-static
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This functions similarly to "git branch --contains"; it will show all
tags that contain the specified commit, by sharing the same logic.
The patch also adds documentation and tests for the new option.
Signed-off-by: Jake Goulding <goulding@vivisimo.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Move has_commit() from branch to a common location, in preparation for
using it in "git-tag". Rename it to is_descendant_of() to make it more
unique and descriptive.
Signed-off-by: Jake Goulding <goulding@vivisimo.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Moving opt_parse_with_commit() from branch to a common location, in
preparation for using it in tag. Rename it to match naming convention
of other option parsing functions.
Signed-off-by: Jake Goulding <goulding@vivisimo.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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* js/maint-rebase-i-submodule:
Fix submodule squashing into unrelated commit
rebase -i squashes submodule changes into unrelated commit
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Actually, I think the issue is pretty independent of submodules; when
"git commit" gets an empty parameter, it misinterprets it as a file.
So avoid passing an empty parameter to "git commit".
Actually, this is a nice cleanup, as MSG_FILE and EDIT_COMMIT were mutually
exclusive; use one variable instead
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Attempting to rebase three-commit series (two regular changes, followed by
one commit that changes what commit is bound for a submodule path) to
squash the first two results in a failure; not just the first two commits
squashed, but the change to the submodule is also included in the result.
This failure causes the subsequent step to "pick" the change that actually
changes the submodule to be applied, because there is no change left to be
applied.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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* jc/maint-split-diff-metainfo:
diff.c: output correct index lines for a split diff
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jc/maint-split-diff-metainfo
This is an evil merge, as a test added since 1.6.0 expects an incorrect
behaviour the merged commit fixes.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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A patch that changes the filetype (e.g. regular file to symlink) of a path
must be split into a deletion event followed by a creation event, which
means that we need to have two independent metainfo lines for each.
However, the code reused the single set of metainfo lines.
As the blob object names recorded on the index lines are usually not used
nor validated on the receiving end, this is not an issue with normal use
of the resulting patch. However, when accepting a binary patch to delete
a blob, git-apply verified that the postimage blob object name on the
index line is 0{40}, hence a patch that deletes a regular file blob that
records binary contents to create a blob with different filetype (e.g. a
symbolic link) failed to apply. "git am -3" also uses the blob object
names recorded on the index line, so it would also misbehave when
synthesizing a preimage tree.
This moves the code to generate metainfo lines around, so that two
independent sets of metainfo lines are used for the split halves.
Additional tests by Jeff King.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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* sp/runtime-prefix:
Windows: Revert to default paths and convert them by RUNTIME_PREFIX
Compute prefix at runtime if RUNTIME_PREFIX is set
Modify setup_path() to only add git_exec_path() to PATH
Add calls to git_extract_argv0_path() in programs that call git_config_*
git_extract_argv0_path(): Move check for valid argv0 from caller to callee
Refactor git_set_argv0_path() to git_extract_argv0_path()
Move computation of absolute paths from Makefile to runtime (in preparation for RUNTIME_PREFIX)
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The RUNTIME_PREFIX mechanism allows us to use the default paths on
Windows too. Defining RUNTIME_PREFIX explicitly requests for
translation of paths relative to the executable at runtime.
Signed-off-by: Steffen Prohaska <prohaska@zib.de>
Acked-by: Johannes Sixt <j6t@kdbg.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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This commit adds support for relocatable binaries (called
RUNTIME_PREFIX). Such binaries can be moved together with the
system configuration files to a different directory, as long as the
relative paths from the binary to the configuration files is
preserved. This functionality is essential on Windows where we
deliver git binaries with an installer that allows to freely choose
the installation location.
If RUNTIME_PREFIX is unset we use the static prefix. This will be
the default on Unix. Thus, the behavior on Unix will remain
identical to the old implementation, which used to add the prefix
in the Makefile.
If RUNTIME_PREFIX is set the prefix is computed from the location
of the executable. In this case, system_path() tries to strip
known directories that executables can be located in from the path
of the executable. If the path is successfully stripped it is used
as the prefix. For example, if the executable is
"/msysgit/bin/git" and BINDIR is "bin", then the prefix computed is
"/msysgit".
If the runtime prefix computation fails, we fall back to the static
prefix specified in the makefile. This can be the case if the
executable is not installed at a known location. Note that our
test system sets GIT_CONFIG_NOSYSTEM to tell git to ignore global
configuration files during testing. Hence testing does not trigger
the fall back.
Note that RUNTIME_PREFIX only works on Windows, though adding
support on Unix should not be too hard. The implementation
requires argv0_path to be set to an absolute path. argv0_path must
point to the directory of the executable. We use assert() to
verify this in debug builds. On Windows, the wrapper for main()
(see compat/mingw.h) guarantees that argv0_path is correctly
initialized. On Unix, further work is required before
RUNTIME_PREFIX can be enabled.
Signed-off-by: Steffen Prohaska <prohaska@zib.de>
Acked-by: Johannes Sixt <j6t@kdbg.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Searching git programs only in the highest priority location is
sufficient. It does not make sense that some of the required
programs are located at the highest priority location but other
programs are picked up from a lower priority exec-path. If
exec-path is overridden a complete set of commands should be
provided, otherwise several different versions could get mixed,
which is likely to cause confusion.
If a user explicitly overrides the default location (by --exec-path
or GIT_EXEC_PATH), we now expect that all the required programs are
found there. Instead of adding the directories "argv_exec_path",
"getenv(EXEC_PATH_ENVIRONMENT)", and "system_path(GIT_EXEC_PATH)"
to PATH, we now rely on git_exec_path(), which implements the same
order, but only returns the highest priority location to search for
executables.
Accessing only the location with highest priority is also required
for testing executables built with RUNTIME_PREFIX. The call to
system_path() should be avoided if RUNTIME_PREFIX is set and the
executable is not installed at its final destination. Because we
test before installing, we want to avoid calling system_path()
during tests. The modifications in this commit avoid calling
system_path(GIT_EXEC_PATH) if a higher-priority location is
provided, which is the case when running the tests.
Signed-off-by: Steffen Prohaska <prohaska@zib.de>
Acked-by: Johannes Sixt <j6t@kdbg.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Programs that use git_config need to find the global configuration.
When runtime prefix computation is enabled, this requires that
git_extract_argv0_path() is called early in the program's main().
This commit adds the necessary calls.
Signed-off-by: Steffen Prohaska <prohaska@zib.de>
Acked-by: Johannes Sixt <j6t@kdbg.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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This simplifies the calling code.
Signed-off-by: Steffen Prohaska <prohaska@zib.de>
Acked-by: Johannes Sixt <j6t@kdbg.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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This commit moves the code that computes the dirname of argv[0]
from git.c's main() to git_set_argv0_path() and renames the function
to git_extract_argv0_path(). This makes the code in git.c's main
less cluttered, and we can use the dirname computation from other
main() functions too.
[ spr:
- split Steve's original commit and wrote new commit message.
- Integrated Johannes Schindelin's
cca1704897e7fdb182f68d4c48a437c5d7bc5203 while rebasing onto master.
]
Signed-off-by: Steve Haslam <shaslam@lastminute.com>
Signed-off-by: Steffen Prohaska <prohaska@zib.de>
Acked-by: Johannes Sixt <j6t@kdbg.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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for RUNTIME_PREFIX)
This commit prepares the Makefile for relocatable binaries (called
RUNTIME_PREFIX). Such binaries will be able to be moved together
with the system configuration files to a different directory,
requiring to compute the prefix at runtime.
In a first step, we make all paths relative in the Makefile and
teach system_path() to add the prefix instead. We used to compute
absolute paths in the Makefile and passed them to C as defines. We
now pass relative paths to C and call system_path() to add the
prefix at runtime.
Signed-off-by: Steffen Prohaska <prohaska@zib.de>
Acked-by: Johannes Sixt <j6t@kdbg.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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* jk/signal-cleanup:
t0005: use SIGTERM for sigchain test
pager: do wait_for_pager on signal death
refactor signal handling for cleanup functions
chain kill signals for cleanup functions
diff: refactor tempfile cleanup handling
Windows: Fix signal numbers
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The signal tests consists of checking that each of our
handlers is executed, and that the test program was killed
by the final signal. We arbitrarily used SIGINT as the kill
signal.
However, some platforms (notably Solaris) will default
SIGINT to SIG_IGN if there is no controlling terminal. In
that case, we don't end up killing the program with the
final signal and the test fails.
This is a problem since the test script should not depend
on outside factors; let's use SIGTERM instead, which should
behave consistently.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Since ea27a18 (spawn pager via run_command interface), the
original git process actually does git work, and the pager
is a child process (actually, on Windows it has always been
that way, since Windows lacks fork). After spawning the
pager, we register an atexit() handler that waits for the
pager to finish.
Unfortunately, that handler does not always run. In
particular, if git is killed by a signal, then we exit
immediately. The calling shell then thinks that git is done;
however, the pager is still trying to run and impact the
terminal. The result can be seen by running a long git
process with a pager (e.g., "git log -p") and hitting ^C.
Depending on your config, you should see the shell prompt,
but pressing a key causes the pager to do any terminal
de-initialization sequence.
This patch just intercepts any death-dealing signals and
waits for the pager before dying. Under typical less
configuration, that means hitting ^C will cause git to stop
generating output, but the pager will keep running.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The current code is very inconsistent about which signals
are caught for doing cleanup of temporary files and lock
files. Some callsites checked only SIGINT, while others
checked a variety of death-dealing signals.
This patch factors out those signals to a single function,
and then calls it everywhere. For some sites, that means
this is a simple clean up. For others, it is an improvement
in that they will now properly clean themselves up after a
larger variety of signals.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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If a piece of code wanted to do some cleanup before exiting
(e.g., cleaning up a lockfile or a tempfile), our usual
strategy was to install a signal handler that did something
like this:
do_cleanup(); /* actual work */
signal(signo, SIG_DFL); /* restore previous behavior */
raise(signo); /* deliver signal, killing ourselves */
For a single handler, this works fine. However, if we want
to clean up two _different_ things, we run into a problem.
The most recently installed handler will run, but when it
removes itself as a handler, it doesn't put back the first
handler.
This patch introduces sigchain, a tiny library for handling
a stack of signal handlers. You sigchain_push each handler,
and use sigchain_pop to restore whoever was before you in
the stack.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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There are two pieces of code that create tempfiles for diff:
run_external_diff and run_textconv. The former cleans up its
tempfiles in the face of premature death (i.e., by die() or
by signal), but the latter does not. After this patch, they
will both use the same cleanup routines.
To make clear what the change is, let me first explain what
happens now:
- run_external_diff uses a static global array of 2
diff_tempfile structs (since it knows it will always
need exactly 2 tempfiles). It calls prepare_temp_file
(which doesn't know anything about the global array) on
each of the structs, creating the tempfiles that need to
be cleaned up. It then registers atexit and signal
handlers to look through the global array and remove the
tempfiles. If it succeeds, it calls the handler manually
(which marks the tempfile structs as unused).
- textconv has its own tempfile struct, which it allocates
using prepare_temp_file and cleans up manually. No
signal or atexit handlers.
The new code moves the installation of cleanup handlers into
the prepare_temp_file function. Which means that that
function now has to understand that there is static tempfile
storage. So what happens now is:
- run_external_diff calls prepare_temp_file
- prepare_temp_file calls claim_diff_tempfile, which
allocates an unused slot from our global array
- prepare_temp_file installs (if they have not already
been installed) atexit and signal handlers for cleanup
- prepare_temp_file sets up the tempfile as usual
- prepare_temp_file returns a pointer to the allocated
tempfile
The advantage being that run_external_diff no longer has to
care about setting up cleanup handlers. Now by virtue of
calling prepare_temp_file, run_textconv gets the same
benefit, as will any future users of prepare_temp_file.
There are also a few side benefits to the specific
implementation:
- we now install cleanup handlers _before_ allocating the
tempfile, closing a race which could leave temp cruft
- when allocating a slot in the global array, we will now
detect a situation where the old slots were not properly
vacated (i.e., somebody forgot to call remove upon
leaving the function). In the old code, such a situation
would silently overwrite the tempfile names, meaning we
would forget to clean them up. The new code dies with a
bug warning.
- we make sure only to install the signal handler once.
This isn't a big deal, since we are just overwriting the
old handler, but will become an issue when a later patch
converts the code to use sigchain
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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We had defined some SIG_FOO macros that appear in the code, but that are
not supported on Windows, in order to make the code compile. But a
subsequent change will assert that a signal number is non-zero. We now
use the signal numbers that are commonly used on POSIX systems.
Signed-off-by: Johannes Sixt <j6t@kdbg.org>
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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* jg/mergetool:
mergetool: Don't repeat merge tool candidates
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git mergetool listed some candidates for mergetools twice, depending on
the environment.
This slightly changes the behavior when both KDE_FULL_SESSION and
GNOME_DESKTOP_SESSION_ID are set at the same time; in such a case
meld is used in favor of kdiff3 (the old code favored kdiff3 in such a
case), but it should not matter in practice.
Signed-off-by: Johannes Gilger <heipei@hackvalue.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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* maint:
merge: fix out-of-bounds memory access
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* maint-1.6.0:
merge: fix out-of-bounds memory access
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The parameter n of unpack_callback() can have a value of up to
MAX_UNPACK_TREES. The check at the top of unpack_trees() (its only
(indirect) caller) makes sure it cannot exceed this limit.
unpack_callback() passes it and the array src to unpack_nondirectories(),
which has this loop:
for (i = 0; i < n; i++) {
/* ... */
src[i + o->merge] = o->df_conflict_entry;
o->merge can be 0 or 1, so unpack_nondirectories() potentially accesses
the array src at index MAX_UNPACK_TREES. This patch makes it big enough.
Reported-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: René Scharfe <rene.scharfe@lsrfire.ath.cx>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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git difftool listed some candidates for mergetools twice, depending on
the environment.
This slightly changes the behavior when both KDE_FULL_SESSION and
GNOME_DESKTOP_SESSION_ID are set at the same time; in such a case
meld is used in favor of kdiff3 (the old code favored kdiff3 in such a
case), but it should not matter in practice.
Signed-off-by: David Aguilar <davvid@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Signed-off-by: Markus Heidelberg <markus.heidelberg@web.de>
Acked-by: David Aguilar <davvid@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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a6c7a27 (rebase -i: correctly remember --root flag across --continue,
2009-01-26) introduced a more portable GIT_EDITOR usage, but left the
old tests unchanged.
Since we never use the editor (all tests run the rebase script as
proposed by rebase -i), just disable it outright, which simplifies the
tests.
Signed-off-by: Thomas Rast <trast@student.ethz.ch>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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In the example, Joe Developer has <joe@example.com> as his email,
but in the .mailmap is <joe@random.com>. Use example.com instead.
Signed-off-by: Michele Ballabio <barra_cuda@katamail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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CVS server was running the hook before the update action was
actually done. This performs the update before the hook is called.
The original commit that introduced the current incorrect behavior
was 394d66d "git-cvsserver runs hooks/post-update". The error in
ordering of the hook call appears to have gone unnoticed, but since
git-cvsserver is supposed to emulate receive-pack, it stands to
reason that the hook should be run *after* the update. Since this
behavior is inconsistent with recieve-pack, users are either:
1) not using post-update hooks with git-cvsserver;
2) using post-update hooks that don't care whether they are
called before or after the actual update occurs;
3) using post-update hooks *only* with git-cvsserver, and
relying on the hook being called just before the update.
This patch would affect only users in case 3. These users are
depending on fairly obviously wrong behavior, and moreover they can
simply change their current post-update into post-recieve hooks,
and their systems will work correctly again.
Signed-off-by: Stefan Karpinski <stefan.karpinski@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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When trying to find out mode changes, we should not access the symlink
targets using stat(); instead we use lstat() so that the diff does
not fail trying to find a non-existing symlink target.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Signed-off-by: Giuseppe Bilotta <giuseppe.bilotta@gmail.com>
Acked-by: Jakub Narebski <jnareb@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Document some possible Apache configurations when the path_info feature
is enabled in gitweb.
Signed-off-by: Giuseppe Bilotta <giuseppe.bilotta@gmail.com>
Acked-by: Jakub Narebski <jnareb@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Gitweb links to a number of static files such as CSS stylesheets,
favicon or the git logo. When, such as with the default Makefile, the
paths to these files are relative (i.e. doesn't start with a "/"), the
files become inaccessible in any view other tha project list and summary
page if gitweb is invoked with a non-empty PATH_INFO.
Fix this by adding a <base> element pointing to the script's own URL,
which ensure that all relative paths will be resolved correctly.
Signed-off-by: Giuseppe Bilotta <giuseppe.bilotta@gmail.com>
Acked-by: Jakub Narebski <jnareb@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The CVS protocol documentation, found at
http://www.wandisco.com/techpubs/cvs-protocol.pdf
states the following about the 'noop' command:
Response expected: yes. This request is a null command
in the sense that it doesn't do anything, but merely
(as with any other requests expecting a response) sends
back any responses pertaining to pending errors, pending
Notified responses, etc.
In accordance with this, the correct way to handle the 'noop'
command, when issued by a client, is to call req_EMPTY.
The 'noop' command is called by some CVS clients, notably
TortoiseCVS, thus making it desirable for git-cvsserver to
respond to the command rather than choking on it as unknown.
Signed-off-by: Stefan Karpinski <stefan.karpinski@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Signed-off-by: Junio C Hamano <gitster@pobox.com>
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