Commit graph

2011 commits

Author SHA1 Message Date
Junio C Hamano
b5d2d8eef0 Merge branch 'ad/sha1-update-chunked' into maint
Apple's common crypto implementation of SHA1_Update() does not take
more than 4GB at a time, and we now have a compile-time workaround
for it.

* ad/sha1-update-chunked:
  sha1: allow limiting the size of the data passed to SHA1_Update()
  sha1: provide another level of indirection for the SHA-1 functions
2015-12-08 14:05:03 -08:00
Junio C Hamano
3897d2d906 Merge branch 'rp/link-curl-before-ssl' into maint
The linkage order of libraries was wrong in places around libcurl.

* rp/link-curl-before-ssl:
  configure.ac: detect ssl need with libcurl
  Makefile: make curl-config path configurable
  Makefile: link libcurl before zlib
2015-11-05 12:18:09 -08:00
Atousa Pahlevan Duprat
001fd7a90b sha1: allow limiting the size of the data passed to SHA1_Update()
Using the previous commit's inredirection mechanism for SHA1,
support a chunked implementation of SHA1_Update() that limits the
amount of data in the chunk passed to SHA1_Update().

This is enabled by using the Makefile variable SHA1_MAX_BLOCK_SIZE
to specify chunk size.  When using Apple's CommonCrypto library this
is set to 1GiB (the implementation cannot handle more 4GiB).

Signed-off-by: Atousa Pahlevan Duprat <apahlevan@ieee.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-11-05 10:35:11 -08:00
Remi Pommarel
f89158760d Makefile: make curl-config path configurable
There are situations, e.g. during cross compilation, where curl-config
program is not present in the PATH.

Make the makefile use a configurable curl-config program passed through
CURL_CONFIG variable which can be set through config.mak.

Also make this variable tunable through use of autoconf/configure. Configure
will set CURL_CONFIG variable in config.mak.autogen to whatever value has been
passed to ac_cv_prog_CURL_CONFIG.

Signed-off-by: Remi Pommarel <repk@triplefau.lt>
Reviewed-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-10-21 12:43:31 -07:00
Remi Pommarel
9eaa78b0b0 Makefile: link libcurl before zlib
For static linking especially library order while linking is important. For
example, libcurl wants symbols from zlib when building http-push, http-fetch
and remote-curl. So for these programs libcurl has to be linked before zlib.

Signed-off-by: Remi Pommarel <repk@triplefau.lt>
Reviewed-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-10-21 12:43:03 -07:00
Junio C Hamano
47c566a4d6 Merge branch 'jk/make-findstring-makeflags-fix' into maint
Customization to change the behaviour with "make -w" and "make -s"
in our Makefile was broken when they were used together.

* jk/make-findstring-makeflags-fix:
  Makefile: fix MAKEFLAGS tests with multiple flags
2015-10-16 14:32:38 -07:00
Junio C Hamano
4d2a3011ee Merge branch 'jw/make-arflags-customizable' into maint
The Makefile always runs the library archiver with hardcoded "crs"
options, which was inconvenient for exotic platforms on which
people want to use programs with totally different set of command
line options.

* jw/make-arflags-customizable:
  Makefile: allow $(ARFLAGS) specified from the command line
2015-10-16 14:32:36 -07:00
Junio C Hamano
a9400b01df Merge branch 'sg/help-group'
* sg/help-group:
  Makefile: use SHELL_PATH when running generate-cmdlist.sh
2015-09-14 14:59:05 -07:00
Alejandro R. Sedeño
57cee8ac5f Makefile: use SHELL_PATH when running generate-cmdlist.sh
Non-POSIX shells, such as /bin/sh on SunOS, do not support $((...))
arithmetic expansion or $(...) command substitution needed by
generate-cmdlist.sh.  Make sure that we use a POSIX compliant shell
$(SHELL_PATH) when running generate-cmdlist.sh.

Signed-off-by: Alejandro R. Sedeño <asedeno@mit.edu>
Acked-by: Eric Sunshine <sunshine@sunshineco.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-09-10 17:49:00 -07:00
Junio C Hamano
ac179b4d9c Makefile: allow $(ARFLAGS) specified from the command line
We can do this because we have a very simple needs and run "ar"
exactly the same way everywhere ;-).

Requested-by: Jeffrey Walton
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-09-10 14:27:21 -07:00
John Keeping
ef49e05a64 Makefile: fix MAKEFLAGS tests with multiple flags
findstring is defined as $(findstring FIND,IN) so if multiple flags are
set these tests do the wrong thing unless $(MAKEFLAGS) is the second
argument.

Signed-off-by: John Keeping <john@keeping.me.uk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-09-10 09:26:23 -07:00
Junio C Hamano
969560bddc Merge branch 'sg/help-group' into maint
We rewrote one of the build scripts in Perl but this reimplements
in Bourne shell.

* sg/help-group:
  generate-cmdlist: re-implement as shell script
2015-09-03 19:17:51 -07:00
Junio C Hamano
5a4f07b322 Merge branch 'hv/submodule-config'
The gitmodules API accessed from the C code learned to cache stuff
lazily.

* hv/submodule-config:
  submodule: allow erroneous values for the fetchRecurseSubmodules option
  submodule: use new config API for worktree configurations
  submodule: extract functions for config set and lookup
  submodule: implement a config API for lookup of .gitmodules values
2015-08-31 15:38:52 -07:00
Junio C Hamano
678c5a49ee Merge branch 'sg/help-group'
We rewrote one of the build scripts in Perl but this reimplements
in Bourne shell.

* sg/help-group:
  generate-cmdlist: re-implement as shell script
2015-08-26 15:45:40 -07:00
Junio C Hamano
db86e61cbb Merge branch 'mh/tempfile'
The "lockfile" API has been rebuilt on top of a new "tempfile" API.

* mh/tempfile:
  credential-cache--daemon: use tempfile module
  credential-cache--daemon: delete socket from main()
  gc: use tempfile module to handle gc.pid file
  lock_repo_for_gc(): compute the path to "gc.pid" only once
  diff: use tempfile module
  setup_temporary_shallow(): use tempfile module
  write_shared_index(): use tempfile module
  register_tempfile(): new function to handle an existing temporary file
  tempfile: add several functions for creating temporary files
  prepare_tempfile_object(): new function, extracted from create_tempfile()
  tempfile: a new module for handling temporary files
  commit_lock_file(): use get_locked_file_path()
  lockfile: add accessor get_lock_file_path()
  lockfile: add accessors get_lock_file_fd() and get_lock_file_fp()
  create_bundle(): duplicate file descriptor to avoid closing it twice
  lockfile: move documentation to lockfile.h and lockfile.c
2015-08-25 14:57:09 -07:00
Eric Sunshine
82aec45b7d generate-cmdlist: re-implement as shell script
527ec39 (generate-cmdlist: parse common group commands, 2015-05-21)
replaced generate-cmdlist.sh with a more functional Perl version,
generate-cmdlist.perl. The Perl version gleans named tags from a new
"common groups" section in command-list.txt and recognizes those
tags in "command list" section entries in place of the old 'common'
tag. This allows git-help to, not only recognize, but also group
common commands.

Although the tests require Perl, 527ec39 creates an unconditional
dependence upon Perl in the build system itself, which can not be
overridden with NO_PERL. Such a dependency may be undesirable; for
instance, the 'git-lite' package in the FreeBSD ports tree is
intended as a minimal Git installation (which may, for example, be
useful on servers needing only local clone and update capability),
which, historically, has not depended upon Perl[1].

Therefore, revive generate-cmdlist.sh and extend it to recognize
"common groups" and its named tags. Retire generate-cmdlist.perl.

[1]: http://thread.gmane.org/gmane.comp.version-control.git/275905/focus=276132

Signed-off-by: Eric Sunshine <sunshine@sunshineco.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-08-25 11:24:31 -07:00
Heiko Voigt
959b5455d0 submodule: implement a config API for lookup of .gitmodules values
In a superproject some commands need to interact with submodules. They
need to query values from the .gitmodules file either from the worktree
of from certain revisions. At the moment this is quite hard since a
caller would need to read the .gitmodules file from the history and then
parse the values. We want to provide an API for this so we have one
place to get values from .gitmodules from any revision (including the
worktree).

The API is realized as a cache which allows us to lazily read
.gitmodules configurations by commit into a runtime cache which can then
be used to easily lookup values from it. Currently only the values for
path or name are stored but it can be extended for any value needed.

It is expected that .gitmodules files do not change often between
commits. Thats why we lookup the .gitmodules sha1 from a commit and then
either lookup an already parsed configuration or parse and cache an
unknown one for each sha1. The cache is lazily build on demand for each
requested commit.

This cache can be used for all purposes which need knowledge about
submodule configurations. Example use cases are:

 * Recursive submodule checkout needs to lookup a submodule name from
   its path when a submodule first appears. This needs be done before
   this configuration exists in the worktree.

 * The implementation of submodule support for 'git archive' needs to
   lookup the submodule name to generate the archive when given a
   revision that is not checked out.

 * 'git fetch' when given the --recurse-submodules=on-demand option (or
   configuration) needs to lookup submodule names by path from the
   database rather than reading from the worktree. For new submodule it
   needs to lookup the name from its path to allow cloning new
   submodules into the .git folder so they can be checked out without
   any network interaction when the user does a checkout of that
   revision.

Signed-off-by: Heiko Voigt <hvoigt@hvoigt.net>
Signed-off-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-08-19 11:43:09 -07:00
Michael Haggerty
1a9d15db25 tempfile: a new module for handling temporary files
A lot of work went into defining the state diagram for lockfiles and
ensuring correct, race-resistant cleanup in all circumstances.

Most of that infrastructure can be applied directly to *any* temporary
file. So extract a new "tempfile" module from the "lockfile" module.
Reimplement lockfile on top of tempfile.

Subsequent commits will add more users of the new module.

Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-08-10 12:57:14 -07:00
Paul Tan
783d7e865e builtin-am: remove redirection to git-am.sh
At the beginning of the rewrite of git-am.sh to C, in order to not break
existing test scripts that depended on a functional git-am, a
redirection to git-am.sh was introduced that would activate if the
environment variable _GIT_USE_BUILTIN_AM was not defined.

Now that all of git-am.sh's functionality has been re-implemented in
builtin/am.c, remove this redirection, and retire git-am.sh into
contrib/examples/.

Signed-off-by: Paul Tan <pyokagan@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-08-04 22:02:11 -07:00
Paul Tan
73c2779f42 builtin-am: implement skeletal builtin am
For the purpose of rewriting git-am.sh into a C builtin, implement a
skeletal builtin/am.c that redirects to $GIT_EXEC_PATH/git-am if the
environment variable _GIT_USE_BUILTIN_AM is not defined. Since in the
Makefile git-am.sh takes precedence over builtin/am.c,
$GIT_EXEC_PATH/git-am will contain the shell script git-am.sh, and thus
this allows us to fall back on the functional git-am.sh when running the
test suite for tests that depend on a working git-am implementation.

Since git-am.sh cannot handle any environment modifications by
setup_git_directory(), "am" is declared with no setup flags in git.c. On
the other hand, to re-implement git-am.sh in builtin/am.c, we need to
run all the git dir and work tree setup logic that git.c typically does
for us. As such, we work around this temporarily by copying the logic in
git.c's run_builtin(), which is roughly:

	prefix = setup_git_directory();
	trace_repo_setup(prefix);
	setup_work_tree();

This redirection should be removed when all the features of git-am.sh
have been re-implemented in builtin/am.c.

Helped-by: Junio C Hamano <gitster@pobox.com>
Signed-off-by: Paul Tan <pyokagan@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-08-04 22:02:11 -07:00
Junio C Hamano
5f02274e4c Merge branch 'pt/pull-builtin'
Reimplement 'git pull' in C.

* pt/pull-builtin:
  pull: remove redirection to git-pull.sh
  pull --rebase: error on no merge candidate cases
  pull --rebase: exit early when the working directory is dirty
  pull: configure --rebase via branch.<name>.rebase or pull.rebase
  pull: teach git pull about --rebase
  pull: set reflog message
  pull: implement pulling into an unborn branch
  pull: fast-forward working tree if head is updated
  pull: check if in unresolved merge state
  pull: support pull.ff config
  pull: error on no merge candidates
  pull: pass git-fetch's options to git-fetch
  pull: pass git-merge's options to git-merge
  pull: pass verbosity, --progress flags to fetch and merge
  pull: implement fetch + merge
  pull: implement skeletal builtin pull
  argv-array: implement argv_array_pushv()
  parse-options-cb: implement parse_opt_passthru_argv()
  parse-options-cb: implement parse_opt_passthru()
2015-08-03 11:01:17 -07:00
Junio C Hamano
7ebc8cbedd Merge branch 'kn/for-each-ref'
GSoC project to rebuild ref listing by branch and tag based on the
for-each-ref machinery.  This is its first part.

* kn/for-each-ref:
  ref-filter: make 'ref_array_item' use a FLEX_ARRAY for refname
  for-each-ref: introduce filter_refs()
  ref-filter: move code from 'for-each-ref'
  ref-filter: add 'ref-filter.h'
  for-each-ref: rename variables called sort to sorting
  for-each-ref: rename some functions and make them public
  for-each-ref: introduce 'ref_array_clear()'
  for-each-ref: introduce new structures for better organisation
  for-each-ref: rename 'refinfo' to 'ref_array_item'
  for-each-ref: clean up code
  for-each-ref: extract helper functions out of grab_single_ref()
2015-08-03 11:01:11 -07:00
Karthik Nayak
c95b758587 ref-filter: move code from 'for-each-ref'
Move most of the code from 'for-each-ref' to 'ref-filter' to make
it publicly available to other commands, this is to unify the code
of 'tag -l', 'branch -l' and 'for-each-ref' so that they can share
their implementations with each other.

Add 'ref-filter' to the Makefile, this completes the movement of code
from 'for-each-ref' to 'ref-filter'.

Mentored-by: Christian Couder <christian.couder@gmail.com>
Mentored-by: Matthieu Moy <matthieu.moy@grenoble-inp.fr>
Signed-off-by: Karthik Nayak <karthik.188@gmail.com>
Reviewed-by: Matthieu Moy <Matthieu.Moy@imag.fr>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-08-03 10:24:07 -07:00
Junio C Hamano
7783eb2e59 Merge branch 'nd/multiple-work-trees'
"git checkout [<tree-ish>] <paths>" spent unnecessary cycles
checking if the current branch was checked out elsewhere, when we
know we are not switching the branches ourselves.

* nd/multiple-work-trees:
  worktree: new place for "git prune --worktrees"
  checkout: don't check worktrees when not necessary
2015-07-13 14:02:02 -07:00
Junio C Hamano
43f23b09bf Merge branch 'kb/use-nsec-doc'
Clarify in the Makefile a guideline to decide use of USE_NSEC.

* kb/use-nsec-doc:
  Makefile / racy-git.txt: clarify USE_NSEC prerequisites
2015-07-13 14:00:26 -07:00
Karsten Blees
b1ffafa978 Makefile / racy-git.txt: clarify USE_NSEC prerequisites
Signed-off-by: Karsten Blees <blees@dcon.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-07-01 14:54:42 -07:00
Nguyễn Thái Ngọc Duy
df0b6cfbda worktree: new place for "git prune --worktrees"
Commit 23af91d (prune: strategies for linked checkouts - 2014-11-30)
adds "--worktrees" to "git prune" without realizing that "git prune" is
for object database only. This patch moves the same functionality to a
new command "git worktree".

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
2015-06-29 08:48:44 -07:00
Paul Tan
b1456605c2 pull: remove redirection to git-pull.sh
At the beginning of the rewrite of git-pull.sh to C, we introduced a
redirection to git-pull.sh if the environment variable
_GIT_USE_BUILTIN_PULL was not defined in order to not break test scripts
that relied on a functional git-pull.

Now that all of git-pull's functionality has been re-implemented in
builtin/pull.c, remove this redirection, and retire the old git-pull.sh
into contrib/examples/.

Signed-off-by: Paul Tan <pyokagan@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-06-18 13:18:59 -07:00
Junio C Hamano
0d5d7db435 Merge branch 'jk/make-fix-dependencies'
Build clean-up.

* jk/make-fix-dependencies:
  Makefile: silence perl/PM.stamp recipe
  Makefile: avoid timestamp updates to GIT-BUILD-OPTIONS
  Makefile: drop dependency between git-instaweb and gitweb
2015-06-16 14:27:07 -07:00
Paul Tan
1e1ea69fa4 pull: implement skeletal builtin pull
For the purpose of rewriting git-pull.sh into a C builtin, implement a
skeletal builtin/pull.c that redirects to $GIT_EXEC_PATH/git-pull.sh if
the environment variable _GIT_USE_BUILTIN_PULL is not defined. This
allows us to fall back on the functional git-pull.sh when running the
test suite for tests that depend on a working git-pull implementation.

This redirection should be removed when all the features of git-pull.sh
have been re-implemented in builtin/pull.c.

Helped-by: Junio C Hamano <gitster@pobox.com>
Signed-off-by: Paul Tan <pyokagan@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-06-15 12:40:50 -07:00
Junio C Hamano
6dec263333 Merge branch 'sg/help-group'
Group list of commands shown by "git help" along the workflow
elements to help early learners.

* sg/help-group:
  help: respect new common command grouping
  command-list.txt: drop the "common" tag
  generate-cmdlist: parse common group commands
  command-list.txt: add the common groups block
  command-list: prepare machinery for upcoming "common groups" section
2015-06-01 12:45:19 -07:00
Jeff King
7c37a5dc82 Makefile: silence perl/PM.stamp recipe
Every time we run "make", we update perl/PM.stamp, which
contains a list of all of the perl module files (if it's
updated, we need to rebuild perl/perl.mak, since the
Makefile will not otherwise know about the new files).

This means that every time "make" is run, we see:

      GEN perl/PM.stamp

in the output, even though it is not likely to have changed.
Let's make this recipe completely silent, as we do for other
auto-generated dependency files (e.g., GIT-CFLAGS).

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-05-29 09:22:19 -07:00
Jeff King
a2d25ef07f Makefile: avoid timestamp updates to GIT-BUILD-OPTIONS
We force the GIT-BUILD-OPTIONS recipe to run every time
"make" is invoked. We must do this to catch new options
which may have come from the command-line or environment.

However, we actually update the file's timestamp each time
the recipe is run, whether anything changed or not. As a
result, any files which depend on it (for example, all of
the perl scripts, which need to know whether NO_PERL was
set) will be re-built every time.

Let's do our usual trick of writing to a tempfile, then
doing a "cmp || mv" to update the file only when something
changed.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-05-29 09:22:18 -07:00
Jeff King
e25c7cc146 Makefile: drop dependency between git-instaweb and gitweb
The rule for "git-instaweb" depends on "gitweb". This makes
no sense, because:

  1. git-instaweb has no build-time dependency on gitweb; it
     is a run-time dependency

  2. gitweb is a directory that we want to recursively make
     in. As a result, its recipe is marked .PHONY, which
     causes "make" to rebuild git-instaweb every time it is
     run.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-05-29 09:21:27 -07:00
Junio C Hamano
38ccaf93bb Merge branch 'nd/untracked-cache'
Teach the index to optionally remember already seen untracked files
to speed up "git status" in a working tree with tons of cruft.

* nd/untracked-cache: (24 commits)
  git-status.txt: advertisement for untracked cache
  untracked cache: guard and disable on system changes
  mingw32: add uname()
  t7063: tests for untracked cache
  update-index: test the system before enabling untracked cache
  update-index: manually enable or disable untracked cache
  status: enable untracked cache
  untracked-cache: temporarily disable with $GIT_DISABLE_UNTRACKED_CACHE
  untracked cache: mark index dirty if untracked cache is updated
  untracked cache: print stats with $GIT_TRACE_UNTRACKED_STATS
  untracked cache: avoid racy timestamps
  read-cache.c: split racy stat test to a separate function
  untracked cache: invalidate at index addition or removal
  untracked cache: load from UNTR index extension
  untracked cache: save to an index extension
  ewah: add convenient wrapper ewah_serialize_strbuf()
  untracked cache: don't open non-existent .gitignore
  untracked cache: mark what dirs should be recursed/saved
  untracked cache: record/validate dir mtime and reuse cached output
  untracked cache: make a wrapper around {open,read,close}dir()
  ...
2015-05-26 13:24:46 -07:00
Junio C Hamano
8087a62086 Merge branch 'jk/skip-http-tests-under-no-curl'
Test clean-up.

* jk/skip-http-tests-under-no-curl:
  tests: skip dav http-push tests under NO_EXPAT=NoThanks
  t/lib-httpd.sh: skip tests if NO_CURL is defined
2015-05-22 12:41:44 -07:00
Eric Sunshine
527ec3980b generate-cmdlist: parse common group commands
Parse the group block to create the array of group descriptions:

static char *common_cmd_groups[] = {
    N_("starting a working area"),
    N_("working on the current change"),
    N_("working with others"),
    N_("examining the history and state"),
    N_("growing, marking and tweaking your history"),
};

then map each element of common_cmds[] to a group via its index:

static struct cmdname_help common_cmds[] = {
    {"add", N_("Add file contents to the index"), 1},
    {"branch", N_("List, create, or delete branches"), 4},
    {"checkout", N_("Checkout a branch or paths to the ..."), 4},
    {"clone", N_("Clone a repository into a new directory"), 0},
    {"commit", N_("Record changes to the repository"), 4},
    ...
};

so that 'git help' can print those commands grouped by theme.

Only commands tagged with an attribute from the group block are emitted to
common_cmds[].

[commit message by Sébastien Guimmara <sebastien.guimmara@gmail.com>]

Signed-off-by: Eric Sunshine <sunshine@sunshineco.com>
Signed-off-by: Sébastien Guimmara <sebastien.guimmara@gmail.com>
Reviewed-by: Eric Sunshine <sunshine@sunshineco.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-05-21 13:03:37 -07:00
Eric Sunshine
11c6659d85 command-list: prepare machinery for upcoming "common groups" section
The ultimate goal is for "git help" to classify common commands by
group. Toward this end, a subsequent patch will add a new "common
groups" section to command-list.txt preceding the actual command list.
As preparation, teach existing command-list.txt parsing machinery, which
doesn't care about grouping, to skip over this upcoming "common groups"
section.

Signed-off-by: Eric Sunshine <sunshine@sunshineco.com>
Signed-off-by: Sébastien Guimmara <sebastien.guimmara@gmail.com>
Reviewed-by: Eric Sunshine <sunshine@sunshineco.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-05-21 13:03:37 -07:00
Junio C Hamano
309a9e3373 tests: skip dav http-push tests under NO_EXPAT=NoThanks
When built with NO_EXPAT=NoThanks, we will not have a working http-push
over webdav.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-05-07 09:48:43 -07:00
Jeff King
0cc30e0e84 strbuf_getwholeline: use getdelim if it is available
We spend a lot of time in strbuf_getwholeline in a tight
loop reading characters from a stdio handle into a buffer.
The libc getdelim() function can do this for us with less
overhead. It's in POSIX.1-2008, and was a GNU extension
before that. Therefore we can't rely on it, but can fall
back to the existing getc loop when it is not available.

The HAVE_GETDELIM knob is turned on automatically for Linux,
where we have glibc. We don't need to set any new
feature-test macros, because we already define _GNU_SOURCE.
Other systems that implement getdelim may need to other
macros (probably _POSIX_C_SOURCE >= 200809L), but we can
address that along with setting the Makefile knob after
testing the feature on those systems.

Running "git rev-parse refs/heads/does-not-exist" on a repo
with an extremely large (1.6GB) packed-refs file went from
(best-of-5):

  real    0m8.601s
  user    0m8.084s
  sys     0m0.524s

to:

  real    0m6.768s
  user    0m6.340s
  sys     0m0.432s

for a wall-clock speedup of 21%.

Based on a patch from Rasmus Villemoes <rv@rasmusvillemoes.dk>.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-04-16 08:15:05 -07:00
Junio C Hamano
551fc7aec1 Merge branch 'km/bsd-sysctl'
We now detect number of CPUs on older BSD-derived systems.

* km/bsd-sysctl:
  thread-utils.c: detect CPU count on older BSD-like systems
  configure: support HAVE_BSD_SYSCTL option
2015-03-20 13:11:49 -07:00
Nguyễn Thái Ngọc Duy
a3ddcefd97 t7063: tests for untracked cache
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-03-12 13:45:18 -07:00
Kyle J. McKay
9529080de2 configure: support HAVE_BSD_SYSCTL option
On BSD-compatible systems some information such as the number
of available CPUs may only be available via the sysctl function.

Add support for a HAVE_BSD_SYSCTL option complete with autoconf
support and include the sys/syctl.h header when the option is
enabled to make the sysctl function available.

Signed-off-by: Kyle J. McKay <mackyle@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-03-10 15:13:25 -07:00
Junio C Hamano
c0997feda8 Merge branch 'tc/curl-vernum-output-broken-in-7.11'
Certain older vintages of cURL give irregular output from
"curl-config --vernum", which confused our build system.

* tc/curl-vernum-output-broken-in-7.11:
  Makefile: handle broken curl version number in version check
2015-02-22 12:28:29 -08:00
Junio C Hamano
b19aab58f1 Merge branch 'km/gettext-n'
* km/gettext-n:
  gettext.h: add parentheses around N_ expansion if supported
2015-02-11 13:42:00 -08:00
Tom G. Christensen
3af67924e0 Makefile: handle broken curl version number in version check
curl 7.11.0 through 7.12.2 when built from their official release
archives will present a 5 digit version number instead of the documented
6 digits which breaks the version check in the Makefile.
Correct these broken version numbers on the fly when extracting them to
ensure the comparison works correctly.

[jc: shortened the new sed scripts a bit]

Signed-off-by: Tom G. Christensen <tgc@statsbiblioteket.dk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-02-03 18:30:24 -08:00
Kyle J. McKay
290c8e7a3f gettext.h: add parentheses around N_ expansion if supported
The gettext N_ macro is used to mark strings for translation
without actually translating them.  At runtime the string is
expected to be passed to the gettext API for translation.

If two N_ macro invocations appear next to each other with only
whitespace (or nothing at all) between them, the two separate
strings will be marked for translation, but the preprocessor
will then silently combine the strings into one and at runtime
the string passed to gettext will not match the strings that
were translated so no translation will actually occur.

Avoid this by adding parentheses around the expansion of the
N_ macro so that instead of ending up with two adjacent strings
that are then combined by the preprocessor, two adjacent strings
surrounded by parentheses result instead which causes a compile
error so the mistake can be quickly found and corrected.

However, since these string literals are typically assigned to
static variables and not all compilers support parenthesized
string literal assignments, allow this to be controlled by the
Makefile with the default only enabled when the compiler is
known to support the syntax.

For now only __GNUC__ enables this by default which covers both
gcc and clang which should result in early detection of any
adjacent N_ macros.

Although the necessary tests make the affected files a bit less
elegant, the benefit of avoiding propagation of a translation-
marking error to all the translation teams thus creating extra
work for them when the error is eventually detected and fixed
would seem to outweigh the minor inelegance the additional
configuration tests introduce.

Helped-by: Junio C Hamano <gitster@pobox.com>
Signed-off-by: Kyle J. McKay <mackyle@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-01-12 11:10:19 -08:00
Reuben Hawkins
88e011814b configure.ac: check for HMAC_CTX_cleanup
OpenSSL version 0.9.6b and before defined the function HMAC_cleanup.
Newer versions define HMAC_CTX_cleanup.  Check for HMAC_CTX_cleanup and
fall back to HMAC_cleanup when the newer function is missing.

Signed-off-by: Reuben Hawkins <reubenhwk@gmail.com>
Reviewed-by: Eric Sunshine <sunshine@sunshineco.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-01-09 15:33:57 -08:00
Reuben Hawkins
a6c3c638ac configure.ac: check for clock_gettime and CLOCK_MONOTONIC
Set or clear Makefile variables HAVE_CLOCK_GETTIME and
HAVE_CLOCK_MONOTONIC based upon results of the checks (overriding
default values from config.mak.uname).

CLOCK_MONOTONIC isn't available on RHEL3, but there are still RHEL3
systems being used in production.

Signed-off-by: Reuben Hawkins <reubenhwk@gmail.com>
Reviewed-by: Eric Sunshine <sunshine@sunshineco.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-01-09 15:33:39 -08:00
Junio C Hamano
c5cb52fd7c Merge branch 'br/imap-send-via-libcurl'
Newer libCurl knows how to talk IMAP; "git imap-send" has been
updated to use this instead of a hand-rolled OpenSSL calls.

* br/imap-send-via-libcurl:
  git-imap-send: use libcurl for implementation
2015-01-07 12:58:05 -08:00