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Now that the COMPUTE_HEADER_DEPENDENCIES feature is turned on
automatically for compilers that support it (see v1.7.8-rc0~142^2~1,
2011-08-18), there is no easy way to force it off. For example,
setting COMPUTE_HEADER_DEPENDENCIES to the empty string in config.mak
just tells the makefile to treat it as undefined and run a test
command to see if the -MMD option is supported.
So allow setting COMPUTE_HEADER_DEPENDENCIES=no to explicitly force
the feature off. The new semantics:
- "yes" means to explicitly enable the feature
- "no" means to disable it
- "auto" means to autodetect
The default is still "auto". Any value other than these three will
cause the build to error out with a descriptive message so typos and
stale settings in config.mak don't result in mysterious behavior.
Makefile:1278: *** please set COMPUTE_HEADER_DEPENDENCIES to
yes, no, or auto (not "1"). Stop.
So now when someone using a compiler without -MMD support reports
trouble building git, you can reproduce it by running "make
COMPUTE_HEADER_DEPENDENCIES=no".
Suggested-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Improved-by: Junio C Hamano <gitster@pobox.com>
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Tested-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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When the streaming filter API was introduced in v1.7.7-rc0~60^2~7
(2011-05-20), we forgot to add its header to LIB_H. Most translation
units depend on streaming.h via cache.h.
v1.7.5-rc0~48 (Fix sparse warnings, 2011-03-22) introduced undeclared
dependencies by url.o on url.h and thread-utils.o on thread-utils.h.
Noticed by make CHECK_HEADER_DEPENDENCIES=1.
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Earlier we moved this header file in the code but forgot to
update the Makefile that refers to it.
Signed-off-by: Erik Faye-Lund <kusmabite@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Both XSI and upstream Gnulib versions expects to find poll.h at
the root of some include path, not inside the sys-folder.
This helps us when upgrading Gnulib.
Signed-off-by: Erik Faye-Lund <kusmabite@gmail.com>
Acked-by: Johannes Sixt <j6t@kdbg.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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* jk/argv-array:
run_hook: use argv_array API
checkout: use argv_array API
bisect: use argv_array API
quote: provide sq_dequote_to_argv_array
refactor argv_array into generic code
quote.h: fix bogus comment
add sha1_array API docs
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* jc/make-tags:
Makefile: ask "ls-files" to list source files if available
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The [ce]tags and cscope targets used to run "find" looking for any paths
that match '*.[chS]' to feed the list of source files to downstream xargs.
Use "git ls-files" if it is already available to us, and otherwise use a
tighter "find" expression that does not list directories and does not go
into our .git directory.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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* jn/no-g-plus-s-on-bsd:
Makefile: do not set setgid bit on directories on GNU/kFreeBSD
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Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Ever since mergetool--lib was split into multiple files in
v1.7.7-rc0~3^2~1 (2011-08-18), the Makefile takes care to reset umask
and use tar --no-owner when installing merge tool definitions to
$(gitexecdir)/mergetools/. Unfortunately it does not take into
account the possibility that the permission bits of the files being
copied might already be wrong.
Rather than fixing the "tar" incantation and making it even more
complicated, let's just use the "install" utility. This only means
losing the ability to install executables and subdirectories of
mergetools/, which wasn't used.
Noticed by installing from a copy of git checked out with umask 002.
Compare v1.6.0.3~81^2 (Fix permission bits on sources checked out with
an overtight umask, 2008-08-21).
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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* jk/argv-array:
run_hook: use argv_array API
checkout: use argv_array API
bisect: use argv_array API
quote: provide sq_dequote_to_argv_array
refactor argv_array into generic code
quote.h: fix bogus comment
add sha1_array API docs
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* rj/quietly-create-dep-dir:
Makefile: Make dependency directory creation less noisy
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* jc/receive-verify:
receive-pack: check connectivity before concluding "git push"
check_everything_connected(): libify
check_everything_connected(): refactor to use an iterator
fetch: verify we have everything we need before updating our ref
Conflicts:
builtin/fetch.c
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* rr/revert-cherry-pick-continue:
builtin/revert.c: make commit_list_append() static
revert: Propagate errors upwards from do_pick_commit
revert: Introduce --continue to continue the operation
revert: Don't implicitly stomp pending sequencer operation
revert: Remove sequencer state when no commits are pending
reset: Make reset remove the sequencer state
revert: Introduce --reset to remove sequencer state
revert: Make pick_commits functionally act on a commit list
revert: Save command-line options for continuing operation
revert: Save data for continuing after conflict resolution
revert: Don't create invalid replay_opts in parse_args
revert: Separate cmdline parsing from functional code
revert: Introduce struct to keep command-line options
revert: Eliminate global "commit" variable
revert: Rename no_replay to record_origin
revert: Don't check lone argument in get_encoding
revert: Simplify and inline add_message_to_msg
config: Introduce functions to write non-standard file
advice: Introduce error_resolve_conflict
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* da/make-auto-header-dependencies:
Makefile: Improve compiler header dependency check
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* fk/make-auto-header-dependencies:
Makefile: Use computed header dependencies if the compiler supports it
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The g+s bit on directories to make group ownership inherited is a
SysVism --- BSD and most of its descendants do not need it since they
do the sane thing by default without g+s. In fact, on some
filesystems (but not all --- tmpfs works this way but UFS does not),
the kernel of FreeBSD does not even allow non-root users to set setgid
bit on directories and produces errors when one tries:
$ git init --shared dir
fatal: Could not make /tmp/dir/.git/refs writable by group
Since the setgid bit would only mean "do what you were going to do
already", it's better to avoid setting it. Accordingly, ever since
v1.5.5-rc0~59^2 (Do not use GUID on dir in git init --share=all on
FreeBSD, 2008-03-05), git on true FreeBSD has done exactly that. Set
DIR_HAS_BSD_GROUP_SEMANTICS in the makefile for GNU/kFreeBSD, too, so
machines that use glibc with the kernel of FreeBSD get the same fix.
This fixes t0001-init.sh and t1301-shared-repo.sh on GNU/kFreeBSD
when running tests with --root pointing to a directory that uses
tmpfs.
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The submodule code recently grew generic code to build a
dynamic argv array. Many other parts of the code can reuse
this, too, so let's make it generically available.
There are two enhancements not found in the original code:
1. We now handle the NULL-termination invariant properly,
even when no strings have been pushed (before, you
could have an empty, NULL argv). This was not a problem
for the submodule code, which always pushed at least
one argument, but was not sufficiently safe for
generic code.
2. There is a formatted variant of the "push" function.
This is a convenience function which was not needed by
the submodule code, but will make it easier to port
other users to the new code.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Signed-off-by: Ramsay Jones <ramsay@ramsay1.demon.co.uk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Extract the helper function and the type definition of the iterator
function it uses out of builtin/fetch.c into a separate source and a
header file.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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* fk/use-kwset-pickaxe-grep-f:
obstack: Fix portability issues
Use kwset in grep
Use kwset in pickaxe
Adapt the kwset code to Git
Add string search routines from GNU grep
Add obstack.[ch] from EGLIBC 2.10
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The Makefile enables CHECK_HEADER_DEPENDENCIES when the
compiler supports generating header dependencies.
Make the check use the same flags as the invocation
to avoid a false positive when user-configured compiler
flags contain incompatible options.
For example, without this patch, trying to build universal
binaries on a Mac using CFLAGS='-arch i386 -arch x86_64'
produces:
gcc-4.2: -E, -S, -save-temps and -M options are
not allowed with multiple -arch flags
While at it, remove "sh -c" in the command passed to $(shell);
at this point in the Makefile, SHELL has already been set to
a sensible shell and it is better not to override that.
Signed-off-by: David Aguilar <davvid@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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* da/difftool-mergtool-refactor:
mergetools/meld: Use '--output' when available
mergetool--lib: Refactor tools into separate files
mergetool--lib: Make style consistent with git
difftool--helper: Make style consistent with git
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* di/parse-options-split:
Reduce parse-options.o dependencies
parse-options: export opterr, optbug
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Benchmarks in the hot cache case:
before:
$ perf stat --repeat=5 git log -Sqwerty
Performance counter stats for 'git log -Sqwerty' (5 runs):
47,092,744 cache-misses # 2.825 M/sec ( +- 1.607% )
123,368,389 cache-references # 7.400 M/sec ( +- 0.812% )
330,040,998 branch-misses # 3.134 % ( +- 0.257% )
10,530,896,750 branches # 631.663 M/sec ( +- 0.121% )
62,037,201,030 instructions # 1.399 IPC ( +- 0.142% )
44,331,294,321 cycles # 2659.073 M/sec ( +- 0.326% )
96,794 page-faults # 0.006 M/sec ( +- 11.952% )
25 CPU-migrations # 0.000 M/sec ( +- 25.266% )
1,424 context-switches # 0.000 M/sec ( +- 0.540% )
16671.708650 task-clock-msecs # 0.997 CPUs ( +- 0.343% )
16.728692052 seconds time elapsed ( +- 0.344% )
after:
$ perf stat --repeat=5 git log -Sqwerty
Performance counter stats for 'git log -Sqwerty' (5 runs):
51,385,522 cache-misses # 4.619 M/sec ( +- 0.565% )
129,177,880 cache-references # 11.611 M/sec ( +- 0.219% )
319,222,775 branch-misses # 6.946 % ( +- 0.134% )
4,595,913,233 branches # 413.086 M/sec ( +- 0.112% )
31,395,042,533 instructions # 1.062 IPC ( +- 0.129% )
29,558,348,598 cycles # 2656.740 M/sec ( +- 0.204% )
93,224 page-faults # 0.008 M/sec ( +- 4.487% )
19 CPU-migrations # 0.000 M/sec ( +- 10.425% )
950 context-switches # 0.000 M/sec ( +- 0.360% )
11125.796039 task-clock-msecs # 0.997 CPUs ( +- 0.239% )
11.164216599 seconds time elapsed ( +- 0.240% )
So the kwset code is about 33% faster.
Signed-off-by: Fredrik Kuivinen <frekui@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Signed-off-by: Fredrik Kuivinen <frekui@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Individual merge tools are now defined in a mergetools/$tool
file which is sourced at runtime.
The individual files are installed into $(git --exec-path)/mergetools/.
New tools can be added by creating a new file instead of editing the
git-mergetool--lib.sh scriptlet.
http://thread.gmane.org/gmane.comp.version-control.git/134906/focus=135006
Signed-off-by: David Aguilar <davvid@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Previously you had to manually define COMPUTE_HEADER_DEPENDENCIES to
enable this feature. It seemed a bit sad that such a useful feature
had to be enabled manually.
To avoid the small overhead we don't do the auto-detection if
COMPUTE_HEADER_DEPENDENCIES is already set.
Signed-off-by: Fredrik Kuivinen <frekui@gmail.com>
Acked-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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* rc/histogram-diff:
xdiff/xhistogram: drop need for additional variable
xdiff/xhistogram: rely on xdl_trim_ends()
xdiff/xhistogram: rework handling of recursed results
xdiff: do away with xdl_mmfile_next()
Make test number unique
xdiff/xprepare: use a smaller sample size for histogram diff
xdiff/xprepare: skip classification
teach --histogram to diff
t4033-diff-patience: factor out tests
xdiff/xpatience: factor out fall-back-diff function
xdiff/xprepare: refactor abort cleanups
xdiff/xprepare: use memset()
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Currently parse-options.o pulls quite a big bunch of dependencies.
his complicates it's usage in contrib/ because it pulls external
dependencies and it also increases executables size.
Split off less generic and more internal to git part of
parse-options.c to parse-options-cb.c.
Move prefix_filename function from setup.c to abspath.c. abspath.o
and wrapper.o pull each other, so it's unlikely to increase the
dependencies. It was a dependency of parse-options.o that pulled
many others.
Now parse-options.o pulls just abspath.o, ctype.o, strbuf.o, usage.o,
wrapper.o, libc directly and strlcpy.o indirectly.
Signed-off-by: Dmitry Ivankov <divanorama@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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* rc/maint-http-wrong-free:
Makefile: some changes for http-related flag documentation
http.c: fix an invalid free()
Conflicts:
Makefile
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To explicitly remove the sequencer state for a fresh cherry-pick or
revert invocation, introduce a new subcommand called "--reset" to
remove the sequencer state.
Take the opportunity to publicly expose the sequencer paths, and a
generic function called "remove_sequencer_state" that various git
programs can use to remove the sequencer state in a uniform manner;
"git reset" uses it later in this series. Introducing this public API
is also in line with our long-term goal of eventually factoring out
functions from revert.c into a generic commit sequencer.
Signed-off-by: Ramkumar Ramachandra <artagnon@gmail.com>
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Rename git-http-pull to git-http-fetch. This was passed over in 215a7ad
(Big tool rename, Wed Sep 7 17:26:23 2005 -0700).
Also, distinguish between dumb and smart in flag docs, as the "warnings"
in NO_CURL and NO_EXPACT are no longer accurate given the introduction
of smart http(s).
Signed-off-by: Tay Ray Chuan <rctay89@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Add a $(uname_S) case for Minix with the correct options.
Minix's linker needs all libraries specified explicitly.
Add NEEDS_SSL_WITH_CURL to add -lssl when using -lcurl.
Add NEEDS_IDN_WITH_CURL to add -lidn when using -lcurl.
When NEEDS_SSL_WITH_CURL is defined and NEEDS_CRYPTO_WITH_SSL
is defined, add -lcrypt to CURL_LIBCURL.
Change OPENSSL_LINK to OPENSSL_LIBSSL in the
NEEDS_CRYPTO_WITH_SSL conditional in the libopenssl
section. Libraries go in OPENSSL_LIBSSL, OPENSSL_LINK
is for linker flags.
Signed-off-by: Thomas Cort <tcort@minix3.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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* ak/gcc46-profile-feedback:
Add explanation of the profile feedback build to the README
Add profile feedback build to git
Add option to disable NORETURN
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* fk/relink-upon-ldflags-update:
Makefile: Track changes to LDFLAGS and relink when necessary
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* md/interix-update:
Update the Interix default build configuration.
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Port JGit's HistogramDiff algorithm over to C. Rough numbers (TODO) show
that it is faster than its --patience cousin, as well as the default
Meyers algorithm.
The implementation has been reworked to use structs and pointers,
instead of bitmasks, thus doing away with JGit's 2^28 line limit.
We also use xdiff's default hash table implementation (xdl_hash_bits()
with XDL_HASHLONG()) for convenience.
Signed-off-by: Tay Ray Chuan <rctay89@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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* jc/streaming:
sha1_file: use the correct type (ssize_t, not size_t) for read-style function
streaming: read loose objects incrementally
sha1_file.c: expose helpers to read loose objects
streaming: read non-delta incrementally from a pack
streaming_write_entry(): support files with holes
convert: CRLF_INPUT is a no-op in the output codepath
streaming_write_entry(): use streaming API in write_entry()
streaming: a new API to read from the object store
write_entry(): separate two helper functions out
unpack_object_header(): make it public
sha1_object_info_extended(): hint about objects in delta-base cache
sha1_object_info_extended(): expose a bit more info
packed_object_info_detail(): do not return a string
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Some profiling tools (e.g., google-perftools and mutrace) work by
linking in a new library into the executables. When using these tools
it is convenient to only relink instead of doing a full make clean;
make cycle.
This change complements the auto-detection of changes to CFLAGS that
we already have. Tracking of more variables that affect the build can
be added when the need arise.
Signed-off-by: Fredrik Kuivinen <frekui@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Add a gcc profile feedback build option "profile-all" to the main
Makefile. It simply runs the test suite to generate feedback data and the
recompiles the main executables with that. The basic structure is similar
to the existing gcov code.
gcc is often able to generate better code with profile feedback data. The
training load also doesn't need to be too similar to the actual load, it
still gives benefits.
The test suite run is unfortunately quite long. It would be good to find a
suitable subset that runs faster and still gives reasonable feedback.
For now the test suite runs single threaded (I had some trouble running
the test suite with -jX)
I tested it with git gc and git blame kernel/sched.c on a Linux kernel
tree. For gc I get about 2.7% improvement in wall clock time by using the
feedback build, for blame about 2.4%. That's not gigantic, but not shabby
either for a very small patch.
If anyone has any favourite CPU intensive git benchmarks feel free to try
them too.
I hope distributors will switch to use a feedback build in their packages.
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Due to a bug in gcc 4.6+ it can crash when doing profile feedback
with a noreturn function pointer
(http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49299)
This adds a Makefile variable to disable noreturns.
[Patch by Junio, description by Andi Kleen]
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Currently, on Interix, libsuacomp is required for building (see [1]).
Since suacomp provides poll() and inttypes.h for all interix versions,
remove NO_*=YesPlease that are no longer necessary.
Interix versions 3 and 5 miss struct sockaddr_storage, so make git
avoid using it.
Same for FNMATCH_CASEFOLD, which does not exist for Interix 3 and 5.
[1] http://news.gmane.org/find-root.php?message_id=%3c4DDF4440.4040405%40gentoo.org%3e
Signed-off-by: Markus Duft <mduft@gentoo.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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* mk/grep-pcre:
git-grep: Fix problems with recently added tests
git-grep: Update tests (mainly for -P)
Makefile: Pass USE_LIBPCRE down in GIT-BUILD-OPTIONS
git-grep: update tests now regexp type is "last one wins"
git-grep: do not die upon -F/-P when grep.extendedRegexp is set.
git-grep: Bail out when -P is used with -F or -E
grep: Add basic tests
configure: Check for libpcre
git-grep: Learn PCRE
grep: Extract compile_regexp_failed() from compile_regexp()
grep: Fix a typo in a comment
grep: Put calls to fixmatch() and regmatch() into patmatch()
contrib/completion: --line-number to git grep
Documentation: Add --line-number to git-grep synopsis
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* jk/haves-from-alternate-odb:
receive-pack: eliminate duplicate .have refs
bisect: refactor sha1_array into a generic sha1 list
refactor refs_from_alternate_cb to allow passing extra data
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* rg/no-gecos-in-pwent:
ident: add NO_GECOS_IN_PWENT for systems without pw_gecos in struct passwd
Conflicts:
Makefile
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* kk/maint-prefix-in-config-mak:
Honor $(prefix) set in config.mak* when defining ETC_GIT*
Revert "Honor $(prefix) set in config.mak* when defining ETC_GIT* and sysconfdir"
Honor $(prefix) set in config.mak* when defining ETC_GIT* and sysconfdir
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* ab/i18n-scripts-basic:
Makefile: add xgettext target for *.sh files
git-sh-i18n.sh: add GIT_GETTEXT_POISON support
git-sh-i18n.sh: add no-op gettext() and eval_gettext() wrappers
git-sh-i18n--envsubst: our own envsubst(1) for eval_gettext()
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Given an object name, use open_istream() to get a git_istream handle
that you can read_istream() from as if you are using read(2) to read
the contents of the object, and close it with close_istream() when
you are done.
Currently, we do not do anything fancy--it just calls read_sha1_file()
and keeps the contents in memory as a whole, and carve it out as you
request with read_istream().
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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