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2014-10-20Merge branch 'cc/interpret-trailers'Libravatar Junio C Hamano1-0/+2
A new filter to programatically edit the tail end of the commit log messages. * cc/interpret-trailers: Documentation: add documentation for 'git interpret-trailers' trailer: add tests for commands in config file trailer: execute command from 'trailer.<name>.command' trailer: add tests for "git interpret-trailers" trailer: add interpret-trailers command trailer: put all the processing together and print trailer: parse trailers from file or stdin trailer: process command line trailer arguments trailer: read and process config information trailer: process trailers from input message and arguments trailer: add data structures and basic functions
2014-10-14Merge branch 'rs/sha1-array-test'Libravatar Junio C Hamano1-0/+1
* rs/sha1-array-test: sha1-lookup: handle duplicates in sha1_pos() sha1-array: add test-sha1-array and basic tests
2014-10-13trailer: add interpret-trailers commandLibravatar Christian Couder1-0/+1
This patch adds the "git interpret-trailers" command. This command uses the previously added process_trailers() function in trailer.c. Signed-off-by: Christian Couder <chriscool@tuxfamily.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-10-13trailer: add data structures and basic functionsLibravatar Christian Couder1-0/+1
We will use a doubly linked list to store all information about trailers and their configuration. This way we can easily remove or add trailers to or from trailer lists while traversing the lists in either direction. Signed-off-by: Christian Couder <chriscool@tuxfamily.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-10-01sha1-array: add test-sha1-array and basic testsLibravatar René Scharfe1-0/+1
Helped-by: Jeff King <peff@peff.net> Helped-by: Eric Sunshine <sunshine@sunshineco.com> Signed-off-by: Rene Scharfe <l.s.r@web.de> Acked-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-09-19Merge branch 'ir/makefile-typofix'Libravatar Junio C Hamano1-2/+2
* ir/makefile-typofix: Makefile: fix some typos in the preamble
2014-09-19Merge branch 'tb/crlf-tests'Libravatar Junio C Hamano1-0/+3
* tb/crlf-tests: MinGW: update tests to handle a native eol of crlf Makefile: propagate NATIVE_CRLF to C t0027: Tests for core.eol=native, eol=lf, eol=crlf
2014-09-15Makefile: fix some typos in the preambleLibravatar Ian Liu Rodrigues1-2/+2
Signed-off-by: Ian Liu Rodrigues <ian.liu88@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-09-11Merge branch 'jk/make-simplify-dependencies'Libravatar Junio C Hamano1-192/+9
Admit that keeping LIB_H up-to-date, only for those that do not use the automatically generated dependencies, is a losing battle, and make it conservative by making everything depend on anything. * jk/make-simplify-dependencies: Makefile: drop CHECK_HEADER_DEPENDENCIES code Makefile: use `find` to determine static header dependencies i18n: treat "make pot" as an explicitly-invoked target
2014-09-02Merge branch 'ta/config-set'Libravatar Junio C Hamano1-0/+1
Add in-core caching layer to let us avoid reading the same configuration files number of times. * ta/config-set: test-config: add tests for the config_set API add `config_set` API for caching config-like files
2014-09-02Makefile: propagate NATIVE_CRLF to CLibravatar Pat Thoyts1-0/+3
Commit 95f31e9a (convert: The native line-ending is \r\n on MinGW, 2010-09-04) correctly points out that the NATIVE_CRLF setting is incorrectly set on Mingw git. However, the Makefile variable is not propagated to the C preprocessor and results in no change. This patch pushes the definition to the C code and adds a test to validate that when core.eol as native is crlf, we actually normalize text files to this line ending convention when core.autocrlf is false. Signed-off-by: Pat Thoyts <patthoyts@users.sourceforge.net> Signed-off-by: Stepan Kasal <kasal@ucw.cz> Signed-off-by: Torsten Bögershausen <tboegi@web.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-08-26Makefile: drop CHECK_HEADER_DEPENDENCIES codeLibravatar Jeff King1-59/+0
This code was useful when we kept a static list of header files, and it was easy to forget to update it. Since the last commit, we generate the list dynamically. Technically this could still be used to find a dependency that our dynamic check misses (e.g., a header file without a ".h" extension). But that is reasonably unlikely to be added, and even less likely to be noticed by this tool (because it has to be run manually)., It is not worth carrying around the cruft in the Makefile. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-08-26Merge branch 'jk/fix-profile-feedback-build'Libravatar Junio C Hamano1-1/+5
Fix profile-feedback build broken in 2.1 for tarball releases. * jk/fix-profile-feedback-build: Makefile: make perf tests optional for profile build
2014-08-25Makefile: use `find` to determine static header dependenciesLibravatar Jeff King1-132/+8
Most modern platforms will use automatically computed header dependencies to figure out when a C file needs rebuilt due to a header changing. With old compilers, however, we fallback to a static list of header files. If any of them changes, we recompile everything. This is overly conservative, but the best we can do on older platforms. It is unfortunately easy for our static header list to grow stale, as none of the regular developers make use of it. Instead of trying to keep it up to date, let's invoke "find" to generate the list dynamically. Since we do not use the value $(LIB_H) unless either COMPUTE_HEADER_DEPENDENCIES is turned on or the user is building "po/git.pot" (where it comes in via $(LOCALIZED_C), make is smart enough to not even run this "find" in most cases. However, we do need to stop using the "immediate" variable assignment ":=" for $(LOCALIZED_C). That's OK, because it was not otherwise useful here. Signed-off-by: Jeff King <peff@peff.net> Reviewed-by: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-08-25i18n: treat "make pot" as an explicitly-invoked targetLibravatar Jonathan Nieder1-1/+1
po/git.pot is normally used as-is and not regenerated by people building git, so it is okay if an explicit "make po/git.pot" always automatically regenerates it. Depend on the magic FORCE target instead of explicitly keeping track of dependencies. This simplifies the makefile, in particular preparing for a moment when $(LIB_H), which is part of $(LOCALIZED_C), can be computed on the fly. It also fixes a slight breakage in which changes to perl and shell scripts did not trigger a rebuild of po/git.pot. We still need a dependency on GENERATED_H, to force those files to be built when regenerating git.pot. Signed-off-by: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-08-19Makefile: make perf tests optional for profile buildLibravatar Jeff King1-1/+5
The perf tests need a repository to operate on; if none is defined, we fall back to the repository containing our build directory. That fails, though, for an exported tarball of git.git, which has no repository. Since 5d7fd6d we run the perf tests as part of "make profile". Therefore "make profile" fails out of the box on released tarballs of v2.1.0. We can fix this by making the perf tests optional; if they are skipped, we still run the regular test suite, which should give a lot of profile data (and is what we used to do prior to 5d7fd6d anyway). Signed-off-by: Jeff King <peff@peff.net> Acked-by: Andi Kleen <ak@linux.intel.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-07-29test-config: add tests for the config_set APILibravatar Tanay Abhra1-0/+1
Expose the `config_set` C API as a set of simple commands in order to facilitate testing. Add tests for the `config_set` API as well as for `git_config_get_*()` family for the usual config files. Signed-off-by: Matthieu Moy <Matthieu.Moy@imag.fr> Signed-off-by: Tanay Abhra <tanayabh@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-07-22Merge branch 'kb/perf-trace'Libravatar Junio C Hamano1-0/+7
* kb/perf-trace: api-trace.txt: add trace API documentation progress: simplify performance measurement by using getnanotime() wt-status: simplify performance measurement by using getnanotime() git: add performance tracing for git's main() function to debug scripts trace: add trace_performance facility to debug performance issues trace: add high resolution timer function to debug performance issues trace: add 'file:line' to all trace output trace: move code around, in preparation to file:line output trace: add current timestamp to all trace output trace: disable additional trace output for unit tests trace: add infrastructure to augment trace output with additional info sha1_file: change GIT_TRACE_PACK_ACCESS logging to use trace API Documentation/git.txt: improve documentation of 'GIT_TRACE*' variables trace: improve trace performance trace: remove redundant printf format attribute trace: consistently name the format parameter trace: move trace declarations from cache.h to new trace.h
2014-07-21Merge branch 'ak/profile-feedback-build'Libravatar Junio C Hamano1-6/+20
* ak/profile-feedback-build: Fix profile feedback with -jN and add profile-fast Run the perf test suite for profile feedback too Don't define away __attribute__ on gcc Use BASIC_FLAGS for profile feedback
2014-07-16Merge branch 'nd/split-index'Libravatar Junio C Hamano1-0/+2
An experiment to use two files (the base file and incremental changes relative to it) to represent the index to reduce I/O cost of rewriting a large index when only small part of the working tree changes. * nd/split-index: (32 commits) t1700: new tests for split-index mode t2104: make sure split index mode is off for the version test read-cache: force split index mode with GIT_TEST_SPLIT_INDEX read-tree: note about dropping split-index mode or index version read-tree: force split-index mode off on --index-output rev-parse: add --shared-index-path to get shared index path update-index --split-index: do not split if $GIT_DIR is read only update-index: new options to enable/disable split index mode split-index: strip pathname of on-disk replaced entries split-index: do not invalidate cache-tree at read time split-index: the reading part split-index: the writing part read-cache: mark updated entries for split index read-cache: save deleted entries in split index read-cache: mark new entries for split index read-cache: split-index mode read-cache: save index SHA-1 after reading entry.c: update cache_changed if refresh_cache is set in checkout_entry() cache-tree: mark istate->cache_changed on prime_cache_tree() cache-tree: mark istate->cache_changed on cache tree update ...
2014-07-13trace: add high resolution timer function to debug performance issuesLibravatar Karsten Blees1-0/+7
Add a getnanotime() function that returns nanoseconds since 01/01/1970 as unsigned 64-bit integer (i.e. overflows in july 2554). This is easier to work with than e.g. struct timeval or struct timespec. Basing the timer on the epoch allows using the results with other time-related APIs. To simplify adaption to different platforms, split the implementation into a common getnanotime() and a platform-specific highres_nanos() function. The common getnanotime() function handles errors, falling back to gettimeofday() if highres_nanos() isn't implemented or doesn't work. getnanotime() is also responsible for normalizing to the epoch. The offset to the system clock is calculated only once on initialization, i.e. manually setting the system clock has no impact on the timer (except if the fallback gettimeofday() is in use). Git processes are typically short lived, so we don't need to handle clock drift. The highres_nanos() function returns monotonically increasing nanoseconds relative to some arbitrary point in time (e.g. system boot), or 0 on failure. Providing platform-specific implementations should be relatively easy, e.g. adapting to clock_gettime() as defined by the POSIX realtime extensions is seven lines of code. This version includes highres_nanos() implementations for: * Linux: using clock_gettime(CLOCK_MONOTONIC) * Windows: using QueryPerformanceCounter() Todo: * enable clock_gettime() on more platforms * add Mac OSX version, e.g. using mach_absolute_time + mach_timebase_info Signed-off-by: Karsten Blees <blees@dcon.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-07-08Fix profile feedback with -jN and add profile-fastLibravatar Andi Kleen1-4/+17
Profile feedback always failed for me with -jN. The problem was that there was no implicit ordering between the profile generate stage and the profile use stage. So some objects in the later stage would be linked with profile generate objects, and fail due to the missing -lgcov. This adds a new profile target that implicitely enforces the correct ordering by using submakes. Plus a profile-install target to also install. This is also nicer to type that PROFILE=... Plus I always run the performance test suite now for the full profile run. In addition I also added a profile-fast / profile-fast-install target the only runs the performance test suite instead of the whole test suite. This significantly speeds up the profile build, which was totally dominated by test suite run time. However it may have less coverage of course. Signed-off-by: Andi Kleen <ak@linux.intel.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-07-08Run the perf test suite for profile feedback tooLibravatar Andi Kleen1-0/+1
Signed-off-by: Andi Kleen <ak@linux.intel.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-07-07Use BASIC_FLAGS for profile feedbackLibravatar Andi Kleen1-2/+2
Use BASIC_CFLAGS instead of CFLAGS to set up the profile feedback option in the Makefile. This allows still overriding CFLAGS on the make command line without disabling profile feedback. Signed-off-by: Andi Kleen <ak@linux.intel.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-06-23verify-commit: scriptable commit signature verificationLibravatar Michael J Gruber1-0/+1
Commit signatures can be verified using "git show -s --show-signature" or the "%G?" pretty format and parsing the output, which is well suited for user inspection, but not for scripting. Provide a command "verify-commit" which is analogous to "verify-tag": It returns 0 for good signatures and non-zero otherwise, has the gpg output on stderr and (optionally) the commit object on stdout, sans the signature, just like "verify-tag" does. Signed-off-by: Michael J Gruber <git@drmicha.warpmail.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-06-13t1700: new tests for split-index modeLibravatar Nguyễn Thái Ngọc Duy1-0/+1
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-06-13read-cache: split-index modeLibravatar Nguyễn Thái Ngọc Duy1-0/+1
This split-index mode is designed to keep write cost proportional to the number of changes the user has made, not the size of the work tree. (Read cost is another matter, to be dealt separately.) This mode stores index info in a pair of $GIT_DIR/index and $GIT_DIR/sharedindex.<SHA-1>. sharedindex is large and unchanged over time while "index" is smaller and updated often. Format details are in index-format.txt, although not everything is implemented in this patch. Shared indexes are not automatically removed, because it's unclear if the shared index is needed by any (even temporary) indexes by just looking at it. After a while you'll collect stale shared indexes. The good news is one shared index is useable for long, until $GIT_DIR/index becomes too big and sluggish that the new shared index must be created. The safest way to clean shared indexes is to turn off split index mode, so shared files are all garbage, delete them all, then turn on split index mode again. Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-06-06Merge branch 'tb/unicode-6.3-zero-width'Libravatar Junio C Hamano1-0/+1
Update the logic to compute the display width needed for utf8 strings and allow us to more easily maintain the tables used in that logic. We may want to let the users choose if codepoints with ambiguous widths are treated as a double or single width in a follow-up patch. * tb/unicode-6.3-zero-width: utf8: make it easier to auto-update git_wcwidth() utf8.c: use a table for double_width
2014-06-03Merge branch 'nd/index-pack-one-fd-per-thread'Libravatar Junio C Hamano1-7/+0
Enable threaded index-pack on platforms without thread-unsafe pread() emulation. * nd/index-pack-one-fd-per-thread: index-pack: work around thread-unsafe pread()
2014-06-03Merge branch 'ks/tree-diff-nway'Libravatar Junio C Hamano1-0/+6
Instead of running N pair-wise diff-trees when inspecting a N-parent merge, find the set of paths that were touched by walking N+1 trees in parallel. These set of paths can then be turned into N pair-wise diff-tree results to be processed through rename detections and such. And N=2 case nicely degenerates to the usual 2-way diff-tree, which is very nice. * ks/tree-diff-nway: mingw: activate alloca combine-diff: speed it up, by using multiparent diff tree-walker directly tree-diff: rework diff_tree() to generate diffs for multiparent cases as well Portable alloca for Git tree-diff: reuse base str(buf) memory on sub-tree recursion tree-diff: no need to call "full" diff_tree_sha1 from show_path() tree-diff: rework diff_tree interface to be sha1 based tree-diff: diff_tree() should now be static tree-diff: remove special-case diff-emitting code for empty-tree cases tree-diff: simplify tree_entry_pathcmp tree-diff: show_path prototype is not needed anymore tree-diff: rename compare_tree_entry -> tree_entry_pathcmp tree-diff: move all action-taking code out of compare_tree_entry() tree-diff: don't assume compare_tree_entry() returns -1,0,1 tree-diff: consolidate code for emitting diffs and recursion in one place tree-diff: show_tree() is not needed tree-diff: no need to pass match to skip_uninteresting() tree-diff: no need to manually verify that there is no mode change for a path combine-diff: move changed-paths scanning logic into its own function combine-diff: move show_log_first logic/action out of paths scanning
2014-05-12utf8: make it easier to auto-update git_wcwidth()Libravatar Torsten Bögershausen1-0/+1
The function git_wcwidth() returns for a given unicode code point the width on the display: -1 for control characters, 0 for combining or other non-visible code points 1 for e.g. ASCII 2 for double-width code points. This table had been originally been extracted for one Unicode version, probably 3.2. We now use two tables these days, one for zero-width and another for double-width. Make it easier to update these tables to a later version of Unicode by factoring out the table from utf8.c into unicode_width.h and add the script update_unicode.sh to update the table based on the latest Unicode specification files. Thanks to Peter Krefting <peter@softwolves.pp.se> and Kevin Bracey <kevin@bracey.fi> for helping with their Unicode knowledge. Signed-off-by: Torsten Bögershausen <tboegi@web.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-04-30Revert the whole "ask curl-config" topic for nowLibravatar Junio C Hamano1-50/+14
Postpone this a bit during the feature freeze and retry the effort in the next cycle.
2014-04-28Merge branch 'db/make-with-curl'Libravatar Junio C Hamano1-13/+28
It turns out that some platforms do ship without curl-config even though they build with the hardcoded default -lcurl and rely on it to work. * db/make-with-curl: Makefile: default to -lcurl when no CURL_CONFIG or CURLDIR
2014-04-28Makefile: default to -lcurl when no CURL_CONFIG or CURLDIRLibravatar Dave Borowitz1-13/+28
The original implementation of CURL_CONFIG support did not match the original behavior of using -lcurl when CURLDIR was not set. This broke implementations that were lacking curl-config but did have libcurl installed along system libraries, such as MSysGit. In other words, the assumption that curl-config is always installed was incorrect. Instead, if CURL_CONFIG is empty or returns an empty result (e.g. due to curl-config being missing), use the old behavior of falling back to -lcurl. Signed-off-by: Dave Borowitz <dborowitz@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-04-24Merge branch 'db/make-with-curl'Libravatar Junio C Hamano1-12/+33
Ask curl-config how to link with the curl library, instead of having only a limited configurability knobs in the Makefile. * db/make-with-curl: Makefile: allow static linking against libcurl Makefile: use curl-config to determine curl flags
2014-04-17i18n: only extract comments marked with "TRANSLATORS:"Libravatar Jiang Xin1-1/+1
When extract l10n messages, we use "--add-comments" option to keep comments right above the l10n messages for references. But sometimes irrelevant comments are also extracted. For example in the following code block, the comment in line 2 will be extracted as comment for the l10n message in line 3, but obviously it's wrong. { OPTION_CALLBACK, 0, "ignore-removal", &addremove_explicit, NULL /* takes no arguments */, N_("ignore paths removed in the working tree (same as --no-all)"), PARSE_OPT_NOARG, ignore_removal_cb }, Since almost all comments for l10n translators are marked with the same prefix (tag): "TRANSLATORS:", it's safe to only extract comments with this special tag. I.E. it's better to call xgettext as: xgettext --add-comments=TRANSLATORS: ... Also tweaks the multi-line comment in "init-db.c", to make it start with the proper tag, not "* TRANSLATORS:" (which has a star before the tag). Signed-off-by: Jiang Xin <worldhello.net@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-04-16index-pack: work around thread-unsafe pread()Libravatar Nguyễn Thái Ngọc Duy1-7/+0
Multi-threaing of index-pack was disabled with c0f8654 (index-pack: Disable threading on cygwin - 2012-06-26), because pread() implementations for Cygwin and MSYS were not thread safe. Recent Cygwin does offer usable pread() and we enabled multi-threading with 103d530f (Cygwin 1.7 has thread-safe pread, 2013-07-19). Work around this problem on platforms with a thread-unsafe pread() emulation by opening one file handle per thread; it would prevent parallel pread() on different file handles from stepping on each other. Also remove NO_THREAD_SAFE_PREAD that was introduced in c0f8654 because it's no longer used anywhere. This workaround is unconditional, even for platforms with thread-safe pread() because the overhead is small (a couple file handles more) and not worth fragmenting the code. Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Tested-by: Johannes Sixt <j6t@kdbg.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-04-15Makefile: allow static linking against libcurlLibravatar Dave Borowitz1-3/+13
This requires more flags than can be guessed with the old-style CURLDIR and related options, so is only supported when curl-config is present. Signed-off-by: Dave Borowitz <dborowitz@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-04-15Makefile: use curl-config to determine curl flagsLibravatar Dave Borowitz1-12/+23
curl-config should always be installed alongside a curl distribution, and its purpose is to provide flags for building against libcurl, so use it instead of guessing flags and dependent libraries. Allow overriding CURL_CONFIG to a custom path to curl-config, to compile against a curl installation other than the first in PATH. Depending on the set of features curl is compiled with, there may be more libraries required than the previous two options of -lssl and -lidn. For example, with a vanilla build of libcurl-7.36.0 on Mac OS X 10.9: $ ~/d/curl-out-7.36.0/lib/curl-config --libs -L/Users/dborowitz/d/curl-out-7.36.0/lib -lcurl -lgssapi_krb5 -lresolv -lldap -lz Use this only when CURLDIR is not explicitly specified, to continue supporting older builds. Signed-off-by: Dave Borowitz <dborowitz@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-04-09Merge branch 'jl/nor-or-nand-and' into maintLibravatar Junio C Hamano1-1/+1
* jl/nor-or-nand-and: code and test: fix misuses of "nor" comments: fix misuses of "nor" contrib: fix misuses of "nor" Documentation: fix misuses of "nor"
2014-04-09Merge branch 'jk/commit-dates-parsing-fix' into maintLibravatar Junio C Hamano1-0/+8
* jk/commit-dates-parsing-fix: t4212: loosen far-in-future test for AIX date: recognize bogus FreeBSD gmtime output
2014-04-08Merge branch 'jl/nor-or-nand-and'Libravatar Junio C Hamano1-1/+1
Eradicate mistaken use of "nor" (that is, essentially "nor" used not in "neither A nor B" ;-)) from in-code comments, command output strings, and documentations. * jl/nor-or-nand-and: code and test: fix misuses of "nor" comments: fix misuses of "nor" contrib: fix misuses of "nor" Documentation: fix misuses of "nor"
2014-04-08Merge branch 'jk/commit-dates-parsing-fix'Libravatar Junio C Hamano1-0/+8
Finishing touches for portability. * jk/commit-dates-parsing-fix: t4212: loosen far-in-future test for AIX date: recognize bogus FreeBSD gmtime output
2014-04-01date: recognize bogus FreeBSD gmtime outputLibravatar Jeff King1-0/+8
Most gmtime implementations return a NULL value when they encounter an error (and this behavior is specified by ANSI C and POSIX). FreeBSD's implementation, however, will simply leave the "struct tm" untouched. Let's also recognize this and convert it to a NULL (with this patch, t4212 should pass on FreeBSD). Reported-by: René Scharfe <l.s.r@web.de> Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-03-31Merge branch 'dp/makefile-charset-lib-doc'Libravatar Junio C Hamano1-2/+2
* dp/makefile-charset-lib-doc: Makefile: describe CHARSET_LIB better
2014-03-31comments: fix misuses of "nor"Libravatar Justin Lebar1-1/+1
Signed-off-by: Justin Lebar <jlebar@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-03-27Portable alloca for GitLibravatar Kirill Smelkov1-0/+6
In the next patch we'll have to use alloca() for performance reasons, but since alloca is non-standardized and is not portable, let's have a trick with compatibility wrappers: 1. at configure time, determine, do we have working alloca() through alloca.h, and define #define HAVE_ALLOCA_H if yes. 2. in code #ifdef HAVE_ALLOCA_H # include <alloca.h> # define xalloca(size) (alloca(size)) # define xalloca_free(p) do {} while(0) #else # define xalloca(size) (xmalloc(size)) # define xalloca_free(p) (free(p)) #endif and use it like func() { p = xalloca(size); ... xalloca_free(p); } This way, for systems, where alloca is available, we'll have optimal on-stack allocations with fast executions. On the other hand, on systems, where alloca is not available, this gracefully fallbacks to xmalloc/free. Both autoconf and config.mak.uname configurations were updated. For autoconf, we are not bothering considering cases, when no alloca.h is available, but alloca() works some other way - its simply alloca.h is available and works or not, everything else is deep legacy. For config.mak.uname, I've tried to make my almost-sure guess for where alloca() is available, but since I only have access to Linux it is the only change I can be sure about myself, with relevant to other changed systems people Cc'ed. NOTE SunOS and Windows had explicit -DHAVE_ALLOCA_H in their configurations. I've changed that to now-common HAVE_ALLOCA_H=YesPlease which should be correct. Cc: Brandon Casey <drafnel@gmail.com> Cc: Marius Storm-Olsen <mstormo@gmail.com> Cc: Johannes Sixt <j6t@kdbg.org> Cc: Johannes Schindelin <Johannes.Schindelin@gmx.de> Cc: Ramsay Jones <ramsay@ramsay1.demon.co.uk> Cc: Gerrit Pape <pape@smarden.org> Cc: Petr Salinger <Petr.Salinger@seznam.cz> Cc: Jonathan Nieder <jrnieder@gmail.com> Acked-by: Thomas Schwinge <thomas@codesourcery.com> (GNU Hurd changes) Signed-off-by: Kirill Smelkov <kirr@mns.spb.ru> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-03-23Makefile: describe CHARSET_LIB betterLibravatar Дилян Палаузов1-2/+2
The original explanation was not even grammatically correct or readable. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-03-21Merge branch 'nd/tag-version-sort'Libravatar Junio C Hamano1-0/+1
Allow v1.9.0 sorted before v1.10.0 in "git tag --list" output. * nd/tag-version-sort: tag: support --sort=<spec>
2014-03-14Merge branch 'tg/index-v4-format'Libravatar Junio C Hamano1-0/+7
* tg/index-v4-format: read-cache: add index.version config variable test-lib: allow setting the index format version introduce GIT_INDEX_VERSION environment variable