Commit Graph

1933 Commits

Author SHA1 Message Date
Karsten Blees
6a364ced49 add a hashtable implementation that supports O(1) removal
The existing hashtable implementation (in hash.[ch]) uses open addressing
(i.e. resolve hash collisions by distributing entries across the table).
Thus, removal is difficult to implement with less than O(n) complexity.
Resolving collisions of entries with identical hashes (e.g. via chaining)
is left to the client code.

Add a hashtable implementation that supports O(1) removal and is slightly
easier to use due to builtin entry chaining.

Supports all basic operations init, free, get, add, remove and iteration.

Also includes ready-to-use hash functions based on the public domain FNV-1
algorithm (http://www.isthe.com/chongo/tech/comp/fnv).

The per-entry data structure (hashmap_entry) is piggybacked in front of
the client's data structure to save memory. See test-hashmap.c for usage
examples.

The hashtable is resized by a factor of four when 80% full. With these
settings, average memory consumption is about 2/3 of hash.[ch], and
insertion is about twice as fast due to less frequent resizing.

Lookups are also slightly faster, because entries are strictly confined to
their bucket (i.e. no data of other buckets needs to be traversed).

Signed-off-by: Karsten Blees <blees@dcon.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-11-18 13:03:51 -08:00
John Keeping
816b2c04c9 peek-remote: remove deprecated alias of ls-remote
This has been deprecated since commit 87194d2 (Deprecate peek-remote,
2007-11-24), included in version 1.5.4.

Signed-off-by: John Keeping <john@keeping.me.uk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-11-12 14:10:22 -08:00
John Keeping
7c4012812a lost-found: remove deprecated command
"git lost-found" has been deprecated since commit fc8b5f0 (Deprecate
git-lost-found, 2007-11-08), included in version 1.5.4.

Signed-off-by: John Keeping <john@keeping.me.uk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-11-12 14:10:21 -08:00
John Keeping
eb8e7e1d9a repo-config: remove deprecated alias for "git config"
The release notes for Git 1.5.4 say that "git repo-config" will be
removed in the next feature release.  Since Git 2.0 is nearly here,
remove it.

Signed-off-by: John Keeping <john@keeping.me.uk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-11-12 14:10:17 -08:00
Vicent Marti
2834bc27c1 pack-objects: refactor the packing list
The hash table that stores the packing list for a given `pack-objects`
run was tightly coupled to the pack-objects code.

In this commit, we refactor the hash table and the underlying storage
array into a `packing_data` struct. The functionality for accessing and
adding entries to the packing list is hence accessible from other parts
of Git besides the `pack-objects` builtin.

This refactoring is a requirement for further patches in this series
that will require accessing the commit packing list from outside of
`pack-objects`.

The hash table implementation has been minimally altered: we now
use table sizes which are always a power of two, to ensure a uniform
index distribution in the array.

Signed-off-by: Vicent Marti <tanoku@gmail.com>
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-10-24 15:44:48 -07:00
Junio C Hamano
dec034a34e Merge branch 'sb/repack-in-c'
Rewrite "git repack" in C.

* sb/repack-in-c:
  repack: improve warnings about failure of renaming and removing files
  repack: retain the return value of pack-objects
  repack: rewrite the shell script in C
2013-10-18 13:49:57 -07:00
Ramsay Jones
9371322a60 sparse: suppress some "using sizeof on a function" warnings
Sparse issues an "using sizeof on a function" warning for each
call to curl_easy_setopt() which sets an option that takes a
function pointer parameter. (currently 12 such warnings over 4
files.)

The warnings relate to the use of the "typecheck-gcc.h" header
file which adds a layer of type-checking macros to the curl
function invocations (for gcc >= 4.3 and !__cplusplus). As part
of the type-checking layer, 'sizeof' is applied to the function
parameter of curl_easy_setopt(). Note that, in the context of
sizeof, the function to function pointer conversion is not
performed and that sizeof(f) != sizeof(&f).

A simple solution, therefore, would be to replace the function
name in each such call to curl_easy_setopt() with an explicit
function pointer expression (i.e. replace f with &f).

However, the "typecheck-gcc.h" header file is only conditionally
included, in addition to the gcc and C++ checks mentioned above,
depending on the CURL_DISABLE_TYPECHECK preprocessor variable.

In order to suppress the warnings, we use target-specific variable
assignments to add -DCURL_DISABLE_TYPECHECK to SPARSE_FLAGS for
each file affected (http-push.c, http.c, http-walker.c and
remote-curl.c).

Signed-off-by: Ramsay Jones <ramsay@ramsay1.demon.co.uk>
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
2013-10-14 16:22:28 -07:00
Stefan Beller
a1bbc6c017 repack: rewrite the shell script in C
The motivation of this patch is to get closer to a goal of being
able to have a core subset of git functionality built in to git.
That would mean

 * people on Windows could get a copy of at least the core parts
   of Git without having to install a Unix-style shell

 * people using git in on servers with chrooted environments
   do not need to worry about standard tools lacking for shell
   scripts.

This patch is meant to be mostly a literal translation of the
git-repack script; the intent is that later patches would start using
more library facilities, but this patch is meant to be as close to a
no-op as possible so it doesn't do that kind of thing.

Signed-off-by: Stefan Beller <stefanbeller@googlemail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-09-17 13:34:50 -07:00
Junio C Hamano
f6070c3956 Merge branch 'jk/remove-remote-helpers-in-python'
Remove now disused remote-helpers framework for helpers written in
Python.

* jk/remove-remote-helpers-in-python:
  git_remote_helpers: remove little used Python library
2013-09-17 11:43:01 -07:00
Junio C Hamano
a23274e127 Merge branch 'sp/clip-read-write-to-8mb'
Send a large request to read(2)/write(2) as a smaller but still
reasonably large chunks, which would improve the latency when the
operation needs to be killed and incidentally works around broken
64-bit systems that cannot take a 2GB write or read in one go.

* sp/clip-read-write-to-8mb:
  Revert "compat/clipped-write.c: large write(2) fails on Mac OS X/XNU"
  xread, xwrite: limit size of IO to 8MB
2013-09-09 14:50:39 -07:00
Junio C Hamano
a0a08d48d0 Merge branch 'jc/url-match'
Allow section.<urlpattern>.var configuration variables to be
treated as a "virtual" section.var given a URL, and use the
mechanism to enhance http.* configuration variables.

This is a reroll of Kyle J. McKay's work.

* jc/url-match:
  builtin/config.c: compilation fix
  config: "git config --get-urlmatch" parses section.<url>.key
  builtin/config: refactor collect_config()
  config: parse http.<url>.<variable> using urlmatch
  config: add generic callback wrapper to parse section.<url>.key
  config: add helper to normalize and match URLs
  http.c: fix parsing of http.sslCertPasswordProtected variable
2013-09-09 14:50:36 -07:00
John Keeping
ae34ac126f git_remote_helpers: remove little used Python library
When it was originally added, the git_remote_helpers library was used as
part of the tests of the remote-helper interface, but since commit
fc407f9 (Add new simplified git-remote-testgit, 2012-11-28) a simple
shell script is used for this.

A search on Ohloh [1] indicates that this library isn't used by any
external projects and even the Python remote helpers in contrib/ don't
use this library, so it is only used by its own test suite.

Since this is the only Python library in Git, removing it will make
packaging easier as the Python scripts only need to be installed for one
version of Python, whereas the library should be installed for all
available versions.

[1] http://code.ohloh.net/search?s=%22git_remote_helpers%22

Signed-off-by: John Keeping <john@keeping.me.uk>
Acked-by: Sverre Rabbelier <srabbelier@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-09-09 08:13:07 -07:00
Junio C Hamano
9a7eaad65f Merge branch 'da/darwin'
* da/darwin:
  OS X: Fix redeclaration of die warning
  Makefile: Fix APPLE_COMMON_CRYPTO with BLK_SHA1
  imap-send: use Apple's Security framework for base64 encoding
2013-09-04 12:28:15 -07:00
Steffen Prohaska
a487916dd5 Revert "compat/clipped-write.c: large write(2) fails on Mac OS X/XNU"
This reverts commit 6c642a8786.

The previous commit introduced a size limit on IO chunks on all
platforms.  The compat clipped_write() is not needed anymore.

Signed-off-by: Steffen Prohaska <prohaska@zib.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-08-20 11:11:08 -07:00
Kyle J. McKay
6a56993b2e config: parse http.<url>.<variable> using urlmatch
Use the urlmatch_config_entry() to wrap the underlying
http_options() two-level variable parser in order to set
http.<variable> to the value with the most specific URL in the
configuration.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Kyle J. McKay <mackyle@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-08-05 16:02:03 -07:00
Brian Gernhardt
c984938f9c Makefile: Fix APPLE_COMMON_CRYPTO with BLK_SHA1
It used to be that APPLE_COMMON_CRYPTO did nothing when BLK_SHA1 was
set.  But APPLE_COMMON_CRYPTO is now used for more than just SHA1 (see
3ef2bca) so make sure that the appropriate libraries are always set.

Signed-off-by: Brian Gernhardt <brian@gernhardtsoftware.com>
Reviewed-by: Jeremy Huddleston Sequoia <jeremyhu@apple.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-08-05 10:47:00 -07:00
Junio C Hamano
d6cbf2fa7a Merge branch 'rj/cygwin-clarify-use-of-cheating-lstat'
Cygwin port added a "not quite correct but a lot faster and good
enough for many lstat() calls that are only used to see if the
working tree entity matches the index entry" lstat() emulation some
time ago, and it started biting us in places.  This removes it and
uses the standard lstat() that comes with Cygwin.

Recent topic that uses lstat on packed-refs file is broken when
this cheating lstat is used, and this is a simplest fix that is
also the cleanest direction to go in the long run.

* rj/cygwin-clarify-use-of-cheating-lstat:
  cygwin: Remove the Win32 l/stat() implementation
2013-08-02 11:01:01 -07:00
Jeremy Huddleston
3ef2bcad02 imap-send: use Apple's Security framework for base64 encoding
Use Apple's supported functions for base64 encoding instead
of the deprecated OpenSSL functions.

Signed-off-by: Jeremy Huddleston <jeremyhu@apple.com>
Signed-off-by: David Aguilar <davvid@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-07-30 08:53:24 -07:00
Junio C Hamano
e683889b75 Merge branch 'es/check-mailmap'
A new command to allow scripts to query the mailmap information.

* es/check-mailmap:
  t4203: test check-mailmap command invocation
  builtin: add git-check-mailmap command
2013-07-22 11:24:14 -07:00
Ramsay Jones
f66450ae94 cygwin: Remove the Win32 l/stat() implementation
Commit adbc0b6b ("cygwin: Use native Win32 API for stat", 30-09-2008)
added a Win32 specific implementation of the stat functions. In order
to handle absolute paths, cygwin mount points and symbolic links, this
implementation may fall back on the standard cygwin l/stat() functions.
Also, the choice of cygwin or Win32 functions is made lazily (by the
first call(s) to l/stat) based on the state of some config variables.

Unfortunately, this "schizophrenic stat" implementation has been the
source of many problems ever since. For example, see commits 7faee6b8,
79748439, 452993c2, 085479e7, b8a97333, 924aaf3e, 05bab3ea and 0117c2f0.

In order to avoid further problems, such as the issue raised by the new
reference handling API, remove the Win32 l/stat() implementation.

Signed-off-by: Ramsay Jones <ramsay@ramsay1.demon.co.uk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-07-18 10:44:17 -07:00
Eric Sunshine
226ad3482a builtin: add git-check-mailmap command
Introduce command check-mailmap, similar to check-attr and check-ignore,
which allows direct testing of .mailmap configuration.

As plumbing accessible to scripts and other porcelain, check-mailmap
publishes the stable, well-tested .mailmap functionality employed by
built-in Git commands.  Consequently, script authors need not
re-implement .mailmap functionality manually, thus avoiding potential
quirks and behavioral differences.

Signed-off-by: Eric Sunshine <sunshine@sunshineco.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-07-13 10:19:37 -07:00
Junio C Hamano
f8abaebab3 Merge branch 'maint'
* maint:
  fixup-builtins: retire an old transition helper script
2013-07-05 01:16:27 -07:00
Ramkumar Ramachandra
531c8dd4fb fixup-builtins: retire an old transition helper script
This script was added in 36e5e70 (Start deprecating "git-command" in
favor of "git command", 2007-06-30) with the intent of aiding the
transition away from dashed forms.

It has already been used to help the transision and served its
purpose, and is no longer very useful for follow-up work, because
the majority of remaining matches it finds are false positives.

Signed-off-by: Ramkumar Ramachandra <artagnon@gmail.com>
Reviewed-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-07-03 22:47:53 -07:00
Junio C Hamano
534f0e0996 Merge branch 'jc/topo-author-date-sort'
"git log" learned the "--author-date-order" option, with which the
output is topologically sorted and commits in parallel histories
are shown intermixed together based on the author timestamp.

* jc/topo-author-date-sort:
  t6003: add --author-date-order test
  topology tests: teach a helper to set author dates as well
  t6003: add --date-order test
  topology tests: teach a helper to take abbreviated timestamps
  t/lib-t6000: style fixes
  log: --author-date-order
  sort-in-topological-order: use prio-queue
  prio-queue: priority queue of pointers to structs
  toposort: rename "lifo" field
2013-07-01 12:41:23 -07:00
Junio C Hamano
c6c4250eb6 Merge branch 'fc/macos-x-clipped-write' into maint
Mac OS X does not like to write(2) more than INT_MAX number of
bytes; work it around by chopping write(2) into smaller pieces.

* fc/macos-x-clipped-write:
  compate/clipped-write.c: large write(2) fails on Mac OS X/XNU
2013-06-30 15:33:40 -07:00
Junio C Hamano
22d94a72b3 Merge branch 'jh/libify-note-handling'
Make it possible to call into copy-notes API from the sequencer code.

* jh/libify-note-handling:
  Move create_notes_commit() from notes-merge.c into notes-utils.c
  Move copy_note_for_rewrite + friends from builtin/notes.c to notes-utils.c
  finish_copy_notes_for_rewrite(): Let caller provide commit message
2013-06-24 13:48:30 -07:00
Junio C Hamano
08bcd774f4 Merge branch 'rs/discard-index-discard-array'
* rs/discard-index-discard-array:
  read-cache: free cache in discard_index
  read-cache: add simple performance test
2013-06-20 16:02:30 -07:00
Junio C Hamano
0846fe1a83 Merge branch 'fc/makefile'
Makefile simplification.

* fc/makefile:
  Makefile: use $^ to avoid listing prerequisites on the command line
  build: do not install git-remote-testgit
  build: generate and clean test scripts
2013-06-20 16:02:21 -07:00
Junio C Hamano
6aeb74ec89 Merge branch 'nd/make-wildmatch-default'
* nd/make-wildmatch-default:
  Makefile: promote wildmatch to be the default fnmatch implementation
2013-06-20 16:02:14 -07:00
Johan Herland
49c2470400 Move copy_note_for_rewrite + friends from builtin/notes.c to notes-utils.c
This is a pure code movement of the machinery for copying notes to
rewritten objects. This code was located in builtin/notes.c for
historical reasons. In order to make it available to builtin/commit.c
it was declared in builtin.h. This was more of an accident of history
than a concious design, and we now want to make this machinery more
widely available.

Hence, this patch moves the code into the new notes-utils.[hc] files
which are included into libgit.a. Except for adjusting #includes
accordingly, this patch merely moves the relevant functions verbatim
into the new files.

Cc: Thomas Rast <trast@inf.ethz.ch>
Signed-off-by: Johan Herland <johan@herland.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-06-12 10:34:59 -07:00
Junio C Hamano
b4b594a315 prio-queue: priority queue of pointers to structs
Traditionally we used a singly linked list of commits to hold a set
of in-flight commits while traversing history.  The most typical use
of the list is to add commits that are newly discovered to it, keep
the list sorted by commit timestamp, pick up the newest one from the
list, and keep digging.  The cost of keeping the singly linked list
sorted is nontrivial, and this typical use pattern better matches a
priority queue.

Introduce a prio-queue structure, that can be used either as a LIFO
stack, or a priority queue.  This will be used in the next patch to
hold in-flight commits during sort-in-topological-order.

Tests and the idea to make it usable for any "void *" pointers to
"things" are by Jeff King.  Bugs are mine.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-06-11 15:15:21 -07:00
Junio C Hamano
e936318aa6 Merge branch 'rj/mingw-cygwin'
Update build for Cygwin 1.[57].  Torsten Bögershausen reports that
this is fine with Cygwin 1.7 ($gmane/225824) so let's try moving it
ahead.

* rj/mingw-cygwin:
  cygwin: Remove the CYGWIN_V15_WIN32API build variable
  mingw: rename WIN32 cpp macro to GIT_WINDOWS_NATIVE
2013-06-11 13:30:20 -07:00
René Scharfe
1ecb5ff141 read-cache: add simple performance test
Add the helper test-read-cache, which can be used to call read_cache and
discard_cache in a loop as well as a performance check based on it.

Signed-off-by: René Scharfe <rene.scharfe@lsrfire.ath.cx>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-06-09 17:03:00 -07:00
Felipe Contreras
21117bfeac Makefile: use $^ to avoid listing prerequisites on the command line
There's no need to list again the prerequisites.

Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-06-09 14:45:12 -07:00
Felipe Contreras
7ded055401 build: do not install git-remote-testgit
Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-06-07 16:16:43 -07:00
Felipe Contreras
6c473a56d2 build: generate and clean test scripts
Commit 416fda6 (build: do not install git-remote-testpy) made it so
git-remote-testpy is not only not installed, but also not generated
by default.  From a fresh checkout, "make --test=5800 test" would
have failed.

This was not found primarily because "make clean" failed to remove
git-remote-testpy, which is another bug in the same commit.

Fix the former by having 'all' target depend on $(NO_INSTALL) and
the latter by removing $(NO_INSTALL) in the 'clean' target.

Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-06-07 16:16:06 -07:00
Junio C Hamano
81b4f18fb8 Merge branch 'js/transport-helper-error-reporting-fix' into fc/makefile
* js/transport-helper-error-reporting-fix:
  git-remote-testgit: build it to run under $SHELL_PATH
  git-remote-testgit: further remove some bashisms
  git-remote-testgit: avoid process substitution
  t5801: "VAR=VAL shell_func args" is forbidden
  transport-helper: update remote helper namespace
  transport-helper: trivial code shuffle
  transport-helper: warn when refspec is not used
  transport-helper: clarify pushing without refspecs
  transport-helper: update refspec documentation
  transport-helper: clarify *:* refspec
  transport-helper: improve push messages
  transport-helper: mention helper name when it dies
  transport-helper: report errors properly

Conflicts:
	t/t5801-remote-helpers.sh
2013-06-07 16:15:32 -07:00
Junio C Hamano
1462b67bc8 Collected msysgit build patches for upstream
This set of patches collects a number of build fixes that have been
 used on the msysgit port for a while and merging upstream should
 simplify future maintenance.
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Merge tag 'post183-for-junio' of http://github.com/msysgit/git

Collected msysgit build patches for upstream

This set of patches collects a number of build fixes that have been
used on the msysgit port for a while and merging upstream should
simplify future maintenance.

* tag 'post183-for-junio' of http://github.com/msysgit/git:
  Set the default help format to html for msys builds.
  Ensure the resource file is rebuilt when the version changes.
  Windows resource: handle dashes in the Git version gracefully
  Provide a Windows version resource for the git executables.
  msysgit: Add the --large-address-aware linker directive to the makefile.
  Define NO_GETTEXT for Git for Windows
  Makefile: Do not use OLD_ICONV on MINGW anymore
2013-06-07 07:38:37 -07:00
Junio C Hamano
854afacb8e Merge branch 'fc/makefile'
Update Makefile to use handy automatic variables where appropriate,
and stop installing a script that is only used for testing.

* fc/makefile:
  build: do not install git-remote-testpy
  build: add NO_INSTALL variable
  build: cleanup using $<
  build: cleanup using $^
  build: trivial simplification
2013-06-05 14:56:56 -07:00
Pat Thoyts
bbc284d6ec Ensure the resource file is rebuilt when the version changes.
Acked-by: Erik Faye-Lund <kusmabite@gmail.com>
Acked-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Pat Thoyts <patthoyts@users.sourceforge.net>
2013-06-04 10:11:46 +01:00
Johannes Schindelin
2be50eae75 Windows resource: handle dashes in the Git version gracefully
Reported by postiffm as issue #14.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2013-06-04 10:11:34 +01:00
Pat Thoyts
ce39c2e04c Provide a Windows version resource for the git executables.
Embeds the git version and description into the git executable thus
implementing the request in issue #5.

Acked-by: Heiko Voigt <hvoigt@hvoigt.net>
Acked-by: Sebastian Schuberth <sschuberth@gmail.com>
Acked-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Pat Thoyts <patthoyts@users.sourceforge.net>
2013-06-04 10:11:08 +01:00
Junio C Hamano
ed73fe5642 Merge branch 'tr/line-log'
* tr/line-log:
  git-log(1): remove --full-line-diff description
  line-log: fix documentation formatting
  log -L: improve comments in process_all_files()
  log -L: store the path instead of a diff_filespec
  log -L: test merge of parallel modify/rename
  t4211: pass -M to 'git log -M -L...' test
  log -L: fix overlapping input ranges
  log -L: check range set invariants when we look it up
  Speed up log -L... -M
  log -L: :pattern:file syntax to find by funcname
  Implement line-history search (git log -L)
  Export rewrite_parents() for 'log -L'
  Refactor parse_loc
2013-06-02 16:00:44 -07:00
Junio C Hamano
67b57a90f4 Merge branch 'tr/coverage'
Update the test coverage support that was left to bitrot for some
time.

* tr/coverage:
  coverage: build coverage-untested-functions by default
  coverage: set DEFAULT_TEST_TARGET to avoid using prove
  coverage: do not delete .gcno files before building
  coverage: split build target into compile and test
2013-06-02 15:57:19 -07:00
Junio C Hamano
527b1719f5 Merge branch 'da/darwin'
Newer MacOS X encourages the programs to compile and link with
their CommonCrypto, not with OpenSSL.

* da/darwin:
  imap-send: eliminate HMAC deprecation warnings on Mac OS X
  cache.h: eliminate SHA-1 deprecation warnings on Mac OS X
  Makefile: add support for Apple CommonCrypto facility
  Makefile: fix default regex settings on Darwin
2013-06-02 15:55:48 -07:00
Junio C Hamano
29d5350c01 Merge branch 'fc/macos-x-clipped-write'
Mac OS X does not like to write(2) more than INT_MAX number of
bytes.

* fc/macos-x-clipped-write:
  compate/clipped-write.c: large write(2) fails on Mac OS X/XNU
2013-06-02 15:54:54 -07:00
Nguyễn Thái Ngọc Duy
4917e1edab Makefile: promote wildmatch to be the default fnmatch implementation
This makes git use wildmatch by default for all fnmatch() calls. Users
who want to use system fnmatch (or compat fnmatch) need to set
NO_WILDMATCH flag.

wildmatch is a drop-in fnmatch replacement with more features. Using
wildmatch gives us a consistent behavior across platforms. The
tentative plan is make it default with an opt-out for about 2 cycles,
then remove NO_WILDMATCH and compat/fnmatch.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-06-02 12:26:35 -07:00
Junio C Hamano
31d176d083 Merge branch 'jk/test-output'
When TEST_OUTPUT_DIRECTORY setting is used, it was handled somewhat
inconsistently between the test framework and t/Makefile, and logic
to summarize the results looked at a wrong place.

* jk/test-output:
  t/Makefile: don't define TEST_RESULTS_DIRECTORY recursively
  test output: respect $TEST_OUTPUT_DIRECTORY
  t/Makefile: fix result handling with TEST_OUTPUT_DIRECTORY
2013-05-29 14:29:11 -07:00
Junio C Hamano
7e2d574c37 Merge branch 'rj/sparse'
* rj/sparse:
  sparse: Fix mingw_main() argument number/type errors
  compat/mingw.c: Fix some sparse warnings
  compat/win32mmap.c: Fix some sparse warnings
  compat/poll/poll.c: Fix a sparse warning
  compat/win32/pthread.c: Fix a sparse warning
  compat/unsetenv.c: Fix a sparse warning
  compat/nedmalloc: Fix compiler warnings on linux
  compat/nedmalloc: Fix some sparse warnings
  compat/fnmatch/fnmatch.c: Fix a sparse error
  compat/regex/regexec.c: Fix some sparse warnings
2013-05-29 14:24:02 -07:00
Junio C Hamano
2f1ef15070 Merge branch 'mh/packed-refs-various'
Update reading and updating packed-refs file, correcting corner case
bugs.

* mh/packed-refs-various: (33 commits)
  refs: handle the main ref_cache specially
  refs: change do_for_each_*() functions to take ref_cache arguments
  pack_one_ref(): do some cheap tests before a more expensive one
  pack_one_ref(): use write_packed_entry() to do the writing
  pack_one_ref(): use function peel_entry()
  refs: inline function do_not_prune()
  pack_refs(): change to use do_for_each_entry()
  refs: use same lock_file object for both ref-packing functions
  pack_one_ref(): rename "path" parameter to "refname"
  pack-refs: merge code from pack-refs.{c,h} into refs.{c,h}
  pack-refs: rename handle_one_ref() to pack_one_ref()
  refs: extract a function write_packed_entry()
  repack_without_ref(): write peeled refs in the rewritten file
  t3211: demonstrate loss of peeled refs if a packed ref is deleted
  refs: change how packed refs are deleted
  search_ref_dir(): return an index rather than a pointer
  repack_without_ref(): silence errors for dangling packed refs
  t3210: test for spurious error messages for dangling packed refs
  refs: change the internal reference-iteration API
  refs: extract a function peel_entry()
  ...
2013-05-29 14:23:49 -07:00
Felipe Contreras
416fda6917 build: do not install git-remote-testpy
It's only meant for testing.

Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-05-26 14:35:49 -07:00
Felipe Contreras
4331ea8de2 build: add NO_INSTALL variable
So that we can specify which scripts we do not want to install (they are
for testing).

Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-05-26 14:35:49 -07:00
Felipe Contreras
f530aa9778 build: cleanup using $<
No need to list the first prerequisite. No functional changes.

Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-05-26 14:27:00 -07:00
Felipe Contreras
654f23f57c build: cleanup using $^
There's no need to list again the prerequisites. No functional changes.

Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-05-26 14:26:59 -07:00
Felipe Contreras
1b0a0f8446 build: trivial simplification
SCRIPT_PYTHON_GEN is '$(patsubst %.py,%,$(SCRIPT_PYTHON))', so replace
'$(patsubst %.py,%,$(SCRIPT_PYTHON))' with it

Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-05-26 14:26:59 -07:00
David Aguilar
61067954ce cache.h: eliminate SHA-1 deprecation warnings on Mac OS X
As of Mac OS X 10.7, Apple deprecated all OpenSSL functions due to
OpenSSL ABI instability, thus leading to build diagnostics such as:

	warning: 'SHA1_Init' is deprecated
	(declared at /usr/include/openssl/sha.h:121)

Silence the warnings by using Apple's CommonCrypto SHA-1 replacement
functions for SHA1_Init(), SHA1_Update(), and SHA1_Final().

COMMON_DIGEST_FOR_OPENSSL is defined to instruct
<CommonCrypto/CommonDigest.h> to provide compatibility macros
associating OpenSSL SHA-1 functions with their CommonCrypto
counterparts.

[es: reworded commit message]

Signed-off-by: David Aguilar <davvid@gmail.com>
Signed-off-by: Eric Sunshine <sunshine@sunshineco.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-05-20 11:15:56 -07:00
David Aguilar
4dcd7732db Makefile: add support for Apple CommonCrypto facility
As of Mac OS X 10.7, Apple deprecated all OpenSSL functions due to
OpenSSL ABI instability, thus leading to build warnings.  As a
replacement, Apple encourages developers to migrate to its own (stable)
CommonCrypto facility.

Introduce boilerplate which controls whether Apple's CommonCrypto
facility is employed (enabled by default).  Also add a
NO_APPLE_COMMON_CRYPTO build flag with which the user can opt out to
use OpenSSL instead.

[es: extracted CommonCrypto-related Makefile boilerplate into separate
introductory patch]

Signed-off-by: David Aguilar <davvid@gmail.com>
Signed-off-by: Eric Sunshine <sunshine@sunshineco.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-05-20 11:15:53 -07:00
Filipe Cabecinhas
6c642a8786 compate/clipped-write.c: large write(2) fails on Mac OS X/XNU
Due to a bug in the Darwin kernel, write(2) calls have a maximum size
of INT_MAX bytes.

Introduce a new compat function, clipped_write(), that only writes
at most INT_MAX bytes and returns the number of bytes written, as
a substitute for write(2), and allow platforms that need this to
enable it from the build mechanism with NEEDS_CLIPPED_WRITE.

Set it for Mac OS X by default.  It may be necessary to include this
function on Windows, too.

Signed-off-by: Filipe Cabecinhas <filcab+git@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-05-17 12:16:30 -07:00
Thomas Rast
5ce4367d64 coverage: build coverage-untested-functions by default
Change the 'coverage' target to build coverage-untested-functions by
default, so as to make it more discoverable.

Signed-off-by: Thomas Rast <trast@inf.ethz.ch>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-05-13 15:25:25 -07:00
Thomas Rast
c14cc77c11 coverage: set DEFAULT_TEST_TARGET to avoid using prove
If the user sets DEFAULT_TEST_TARGET=prove in his config.mak, that
carries over into the coverage tests.  Which is really bad if he also
sets GIT_PROVE_OPTS=-j<..> as that completely breaks the coverage
runs.

Instead of attempting to mess with the GIT_PROVE_OPTS, just force the
test target to 'test' so that we run under make, like we intended all
along.

Signed-off-by: Thomas Rast <trast@inf.ethz.ch>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-05-13 15:25:10 -07:00
Thomas Rast
dcbe7f1ab8 coverage: do not delete .gcno files before building
The coverage-compile target depends on coverage-clean, which is
supposed to remove the earlier build products that would get in the
way of the next coverage test run.

However, removing *.gcno is actively wrong.  These are the files that
contain the compile-time coverage related data.  They are only rebuilt
if the source is compiled.  So if one ran 'make coverage' two times in
a row, the second run would remove *.gcno, but then fail to recreate
them because neither source files nor build flags have changed.  (This
remained hidden for so long most likely because any other intervening
use of 'make' will change the build flags, causing a full rebuild.)

So we make an exception for *.gcno.  The *.gcda are the coverage
results, written when the gcov-instrumented program is run.  We still
remove those, so as to get a one-test-run view of the data; you could
probably argue the other way too.

Signed-off-by: Thomas Rast <trast@inf.ethz.ch>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-05-13 15:24:46 -07:00
Thomas Rast
0c38a95ec8 coverage: split build target into compile and test
Confusingly, the coverage-build target in fact builds with gcov
support _and runs tests_.

Split it into two targets that actually are named after what they do.

Signed-off-by: Thomas Rast <trast@inf.ethz.ch>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-05-13 15:23:47 -07:00
David Aguilar
29de20504e Makefile: fix default regex settings on Darwin
t0070-fundamental.sh fails on Mac OS X 10.8:

	$ uname -a
	Darwin lustrous 12.2.0 Darwin Kernel Version 12.2.0:
	Sat Aug 25 00:48:52 PDT 2012;
	root:xnu-2050.18.24~1/RELEASE_X86_64 x86_64

	$ ./t0070-fundamental.sh -v
	fatal: regex bug confirmed: re-build git with NO_REGEX=1

Fix it by using Git's regex library.

Reviewed-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: David Aguilar <davvid@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-05-11 10:41:26 -07:00
Ramsay Jones
83ff1da3e8 cygwin: Remove the CYGWIN_V15_WIN32API build variable
Commit 380a4d92 ("Update cygwin.c for new mingw-64 win32 api headers",
11-11-2012) solved an header include order problem on cygwin 1.7 when
using the new mingw-64 WIN32 API headers. The solution involved using
a new build variable (V15_MINGW_HEADERS) to conditionally compile the
cygwin.c source file to use an include order appropriate for the old
and new header files. (The build variable was later renamed in commit
9fca6cff to CYGWIN_V15_WIN32API).

The include order used for cygwin 1.7 includes the "win32.h" header
before "../git-compat-util.h". This order was problematic on cygwin
1.5, since it lead to the WIN32 symbol being defined along with the
inclusion of some WIN32 API headers (e.g. <winsock2.h>) which cause
compilation errors.

The header include order problem on cygwin 1.5 has since been fixed
(see commit "mingw: rename WIN32 cpp macro to GIT_WINDOWS_NATIVE"),
so we can now remove the conditional compilation along with the
associated CYGWIN_V15_WIN32API build variable.

Signed-off-by: Ramsay Jones <ramsay@ramsay1.demon.co.uk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-05-08 12:15:44 -07:00
Michael Haggerty
32d462cea8 pack-refs: merge code from pack-refs.{c,h} into refs.{c,h}
pack-refs.c doesn't contain much code, and the code it does contain is
closely related to reference handling.  Moreover, there is some
duplication between pack_refs() and repack_without_ref().  Therefore,
merge pack-refs.c into refs.c and pack-refs.h into refs.h.

The code duplication will be addressed in future commits.

Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-05-01 15:33:11 -07:00
John Keeping
2d14e13c56 test output: respect $TEST_OUTPUT_DIRECTORY
Most test results go in $TEST_OUTPUT_DIRECTORY, but the output files for
tests run with --tee or --valgrind just use bare "test-results".
Changes these so that they do respect $TEST_OUTPUT_DIRECTORY.

As a result of this, the valgrind/analyze.sh script may no longer
inspect the correct files so it is also updated to respect
$TEST_OUTPUT_DIRECTORY by adding it to GIT-BUILD-OPTIONS.  This may be a
regression for people who have TEST_OUTPUT_DIRECTORY in their config.mak
but want to override it in the environment, but this change merely
brings it into line with GIT_TEST_OPTS which already cannot be
overridden if it is specified in config.mak.

Signed-off-by: John Keeping <john@keeping.me.uk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-04-29 11:26:23 -07:00
Junio C Hamano
709a957d94 git-remote-testgit: build it to run under $SHELL_PATH
Just like all the other shell scripts, replace the shebang line to
make sure it runs under the shell the user specified.

As this no longer depends on bashisms, t5801 does not have to say
bash must be available somewhere on the system.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-04-28 15:22:53 -07:00
Ramsay Jones
241c957d89 compat/nedmalloc: Fix some sparse warnings
Sparse issues many "Using plain integer as NULL pointer" warnings
while checking nedmalloc.c (at least 98 such warnings before giving
up due to "too many warnings"). In addition, sparse issues some
"non-ANSI function declaration" type warnings for the symbols
'win32_getcurrentthreadid', 'malloc_stats' and 'malloc_footprint'.

In order to suppress the NULL pointer warnings, rather than replace
all uses of '0' as a null pointer representation with NULL, we add
-Wno-non-pointer-null to SPARSE_FLAGS while checking nedmalloc.c.

In order to suppress the "non-ANSI function declaration" warnings,
we simply include the missing 'empty parameter list' prototype (void)
in the function declarations.

Signed-off-by: Ramsay Jones <ramsay@ramsay1.demon.co.uk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-04-28 12:24:48 -07:00
Junio C Hamano
e81890548c Merge branch 'jk/common-make-variables-export-safety'
Make the three variables safer to be exported to submakes by
ensuring that they are full paths so that they can be used as
installation location.

* jk/common-make-variables-export-safety:
  Makefile: make mandir, htmldir and infodir absolute
2013-04-01 08:59:47 -07:00
Thomas Rast
12da1d1f6f Implement line-history search (git log -L)
This is a rewrite of much of Bo's work, mainly in an effort to split
it into smaller, easier to understand routines.

The algorithm is built around the struct range_set, which encodes a
series of line ranges as intervals [a,b).  This is used in two
contexts:

* A set of lines we are tracking (which will change as we dig through
  history).
* To encode diffs, as pairs of ranges.

The main routine is range_set_map_across_diff().  It processes the
diff between a commit C and some parent P.  It determines which diff
hunks are relevant to the ranges tracked in C, and computes the new
ranges for P.

The algorithm is then simply to process history in topological order
from newest to oldest, computing ranges and (partial) diffs.  At
branch points, we need to merge the ranges we are watching.  We will
find that many commits do not affect the chosen ranges, and mark them
TREESAME (in addition to those already filtered by pathspec limiting).
Another pass of history simplification then gets rid of such commits.

This is wired as an extra filtering pass in the log machinery.  This
currently only reduces code duplication, but should allow for other
simplifications and options to be used.

Finally, we hook a diff printer into the output chain.  Ideally we
would wire directly into the diff logic, to optionally use features
like word diff.  However, that will require some major reworking of
the diff chain, so we completely replace the output with our own diff
for now.

As this was a GSoC project, and has quite some history by now, many
people have helped.  In no particular order, thanks go to

  Jakub Narebski <jnareb@gmail.com>
  Jens Lehmann <Jens.Lehmann@web.de>
  Jonathan Nieder <jrnieder@gmail.com>
  Junio C Hamano <gitster@pobox.com>
  Ramsay Jones <ramsay@ramsay1.demon.co.uk>
  Will Palmer <wmpalmer@gmail.com>

Apologies to everyone I forgot.

Signed-off-by: Bo Yang <struggleyb.nku@gmail.com>
Signed-off-by: Thomas Rast <trast@student.ethz.ch>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-03-28 10:29:22 -07:00
Bo Yang
25ed3412f8 Refactor parse_loc
We want to use the same style of -L n,m argument for 'git log -L' as
for git-blame.  Refactor the argument parsing of the range arguments
from builtin/blame.c to the (new) file that will hold the 'git log -L'
logic.

To accommodate different data structures in blame and log -L, the file
contents are abstracted away; parse_range_arg takes a callback that it
uses to get the contents of a line of the (notional) file.

The new test is for a case that made me pause during debugging: the
'blame -L with invalid end' test was the only one that noticed an
outright failure to parse the end *at all*.  So make a more explicit
test for that.

Signed-off-by: Bo Yang <struggleyb.nku@gmail.com>
Signed-off-by: Thomas Rast <trast@student.ethz.ch>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-03-28 10:28:41 -07:00
Junio C Hamano
bb79a827a2 Merge branch 'maint'
* maint:
  rev-parse: clarify documentation of $name@{upstream} syntax
  sha1_name: pass object name length to diagnose_invalid_sha1_path()
  Makefile: keep LIB_H entries together and sorted
2013-03-17 00:11:11 -07:00
René Scharfe
ea738e2da1 Makefile: keep LIB_H entries together and sorted
As a follow-up to 60d24dd25 (Makefile: fold XDIFF_H and VCSSVN_H into
LIB_H), let the unconditional additions to LIB_H form a single sorted
list.  Also drop the duplicate entry for xdiff/xdiff.h, which was easy
to spot after sorting.

Signed-off-by: Rene Scharfe <rene.scharfe@lsrfire.ath.cx>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-03-16 22:23:04 -07:00
Junio C Hamano
c054ef9be2 Merge branch 'jn/less-reconfigure' into maint
* jn/less-reconfigure:
  Makefile: avoid infinite loop on configure.ac change
2013-02-27 09:59:19 -08:00
Erik Faye-Lund
13a2319919 Revert "compat: add strtok_r()"
This reverts commit 78457bc0cc.

commit 28c5d9e ("vcs-svn: drop string_pool") previously removed
the only call-site for strtok_r. So let's get rid of the compat
implementation as well.

Signed-off-by: Erik Faye-Lund <kusmabite@gmail.com>
Reviewed-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-02-26 09:16:58 -08:00
John Keeping
971f85388f Makefile: make mandir, htmldir and infodir absolute
This matches the use of the variables with the same names in autotools,
reducing the potential for user surprise.

Using relative paths in these variables also causes issues if they are
exported from the Makefile, as discussed in commit c09d62f (Makefile: do
not export mandir/htmldir/infodir, 2013-02-12).

Suggested-by: Junio C Hamano <gitster@pobox.com>
Signed-off-by: John Keeping <john@keeping.me.uk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-02-25 12:37:04 -08:00
Junio C Hamano
bb07a3f46b Merge branch 'jn/less-reconfigure'
A change made on v1.8.1.x maintenance track had a nasty regression
to break the build when autoconf is used.

* jn/less-reconfigure:
  Makefile: avoid infinite loop on configure.ac change
2013-02-25 08:27:13 -08:00
Jeff King
7f1b697632 Makefile: avoid infinite loop on configure.ac change
If you are using autoconf and change the configure.ac, the
Makefile will notice that config.status is older than
configure.ac, and will attempt to rebuild and re-run the
configure script to pick up your changes. The first step in
doing so is to run "make configure". Unfortunately, this
tries to include config.mak.autogen, which depends on
config.status, which depends on configure.ac; so we must
rebuild config.status. Which leads to us running "make
configure", and so on.

It's easy to demonstrate with:

  make configure
  ./configure
  touch configure.ac
  make

We can break this cycle by not re-invoking make to build
"configure", and instead just putting its rules inline into
our config.status rebuild procedure.  We can avoid a copy by
factoring the rules into a make variable.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-02-20 23:56:05 -08:00
Junio C Hamano
f5af28b8e9 Merge branch 'mk/make-rm-depdirs-could-be-empty'
"make COMPUTE_HEADER_DEPENDENCIES=no clean" would try to run "rm
-rf $(dep_dirs)" with an empty dep_dir, but some implementations of
"rm -rf" barf on an empty argument list.

* mk/make-rm-depdirs-could-be-empty:
  Makefile: don't run "rm" without any files
2013-02-14 16:06:24 -08:00
Junio C Hamano
bfc1f6a1c1 Merge branch 'mk/old-expat'
* mk/old-expat:
  Allow building with xmlparse.h
2013-02-14 16:06:08 -08:00
Matt Kraai
61564ca5bf Makefile: don't run "rm" without any files
When COMPUTE_HEADER_DEPENDENCIES is set to "auto" and the compiler
does not support it, $(dep_dirs) becomes empty.  "make clean" runs
"rm -rf $(dep_dirs)", which can fail in such a case.

Signed-off-by: Matt Kraai <matt.kraai@amo.abbott.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-02-13 12:30:43 -08:00
Matt Kraai
081fd8d093 Allow building with xmlparse.h
expat 1.1 and 1.2 provide xmlparse.h instead of expat.h.  Include the
former on systems that define the EXPAT_NEEDS_XMLPARSE_H variable and
define that variable on QNX systems, which ship with expat 1.1.

Signed-off-by: Matt Kraai <matt.kraai@amo.abbott.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-02-11 14:33:04 -08:00
Matthieu Moy
4c06b41888 Makefile: make script-related rules usable from subdirectories
Git's Makefile provides a few nice features for script build and
installation (substitute the first line with the right path, hardcode the
path to Git library, ...).

The Makefile already knows how to process files outside the toplevel
directory with e.g.

  make SCRIPT_PERL=path/to/file.perl path/to/file

but we can make it simpler for callers by exposing build, install and
clean rules as .PHONY targets.

Signed-off-by: Matthieu Moy <Matthieu.Moy@imag.fr>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-02-08 10:02:31 -08:00
Junio C Hamano
45bb6cbb49 Merge branch 'jn/auto-depend-workaround-buggy-ccache' into maint
Buggy versions of ccache broke the auto-generation of dependencies.

* jn/auto-depend-workaround-buggy-ccache:
  Makefile: explicitly set target name for autogenerated dependencies
2013-02-07 15:13:34 -08:00
Junio C Hamano
b36ab1abd3 Merge branch 'jn/auto-depend-workaround-buggy-ccache'
An age-old workaround to prevent buggy versions of ccache from
breaking the auto-generation of dependencies, which unfortunately
is still relevant because some people use ancient distros.

* jn/auto-depend-workaround-buggy-ccache:
  Makefile: explicitly set target name for autogenerated dependencies
2013-02-05 16:13:52 -08:00
Junio C Hamano
686b895928 Merge branch 'jc/merge-blobs' into maint
* jc/merge-blobs:
  Makefile: Replace merge-file.h with merge-blobs.h in LIB_H
  merge-tree: fix d/f conflicts
  merge-tree: add comments to clarify what these functions are doing
  merge-tree: lose unused "resolve_directories"
  merge-tree: lose unused "flags" from merge_list
  Which merge_file() function do you mean?
2013-02-04 10:03:41 -08:00
Jonathan Nieder
6978934713 Makefile: explicitly set target name for autogenerated dependencies
"gcc -MF depfile -MMD -MP -c -o path/to/file.o" produces a makefile
snippet named "depfile" describing what files are needed to build the
target given by "-o".  When ccache versions before v3.0pre0~187 (Fix
handling of the -MD and -MDD options, 2009-11-01) run, they execute

	gcc -MF depfile -MMD -MP -E

instead to get the final content for hashing.  Notice that the "-c -o"
combination is replaced by "-E".  The result is a target name without
a leading path.

Thus when building git with such versions of ccache with
COMPUTE_HEADER_DEPENDENCIES enabled, the generated makefile snippets
define dependencies for the wrong target:

	$ make builtin/add.o
	GIT_VERSION = 1.7.8.rc3
	    * new build flags or prefix
	    CC builtin/add.o
	$ head -1 builtin/.depend/add.o.d
	add.o: builtin/add.c cache.h git-compat-util.h compat/bswap.h strbuf.h \

After a change in a header file, object files in a subdirectory are
not automatically rebuilt by "make":

	$ touch cache.h
	$ make builtin/add.o
	$

Luckily we can prevent trouble by explicitly supplying the name of the
target to ccache and gcc, using the -MQ option.  Do so.

Reported-and-tested-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Reported-by: : 허종만 <jongman.heo@samsung.com>
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Reviewed-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-02-01 18:09:33 -08:00
Junio C Hamano
9ecd9f5dc3 Merge branch 'nd/retire-fnmatch'
Replace our use of fnmatch(3) with a more feature-rich wildmatch.
A handful patches at the bottom have been moved to nd/wildmatch to
graduate as part of that branch, before this series solidifies.

We may want to mark USE_WILDMATCH as an experimental curiosity a
bit more clearly (i.e. should not be enabled in production
environment, because it will make the behaviour between builds
unpredictable).

* nd/retire-fnmatch:
  Makefile: add USE_WILDMATCH to use wildmatch as fnmatch
  wildmatch: advance faster in <asterisk> + <literal> patterns
  wildmatch: make a special case for "*/" with FNM_PATHNAME
  test-wildmatch: add "perf" command to compare wildmatch and fnmatch
  wildmatch: support "no FNM_PATHNAME" mode
  wildmatch: make dowild() take arbitrary flags
  wildmatch: rename constants and update prototype
2013-01-25 12:34:55 -08:00
Junio C Hamano
a39b15b4f6 Merge branch 'as/check-ignore'
Add a new command "git check-ignore" for debugging .gitignore
files.

The variable names may want to get cleaned up but that can be done
in-tree.

* as/check-ignore:
  clean.c, ls-files.c: respect encapsulation of exclude_list_groups
  t0008: avoid brace expansion
  add git-check-ignore sub-command
  setup.c: document get_pathspec()
  add.c: extract new die_if_path_beyond_symlink() for reuse
  add.c: extract check_path_for_gitlink() from treat_gitlinks() for reuse
  pathspec.c: rename newly public functions for clarity
  add.c: move pathspec matchers into new pathspec.c for reuse
  add.c: remove unused argument from validate_pathspec()
  dir.c: improve docs for match_pathspec() and match_pathspec_depth()
  dir.c: provide clear_directory() for reclaiming dir_struct memory
  dir.c: keep track of where patterns came from
  dir.c: use a single struct exclude_list per source of excludes

Conflicts:
	builtin/ls-files.c
	dir.c
2013-01-23 21:19:10 -08:00
Junio C Hamano
f55cb042bd Merge branch 'jc/makefile-perl-python-path-doc'
* 'jc/makefile-perl-python-path-doc':
  Makefile: add description on PERL/PYTHON_PATH
2013-01-23 21:09:23 -08:00
Junio C Hamano
9591fcc6d6 Merge branch 'jc/merge-blobs'
* jc/merge-blobs:
  Makefile: Replace merge-file.h with merge-blobs.h in LIB_H
2013-01-22 10:48:20 -08:00
Ramsay Jones
a60521bc60 Makefile: Replace merge-file.h with merge-blobs.h in LIB_H
Commit fa2364ec ("Which merge_file() function do you mean?", 06-12-2012)
renamed the files merge-file.[ch] to merge-blobs.[ch], but forgot to
rename the header file in the definition of the LIB_H macro.

Signed-off-by: Ramsay Jones <ramsay@ramsay1.demon.co.uk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-01-22 10:47:47 -08:00
Junio C Hamano
f2f5449379 Merge branch 'jc/comment-cygwin-win32api-in-makefile' into maint
* jc/comment-cygwin-win32api-in-makefile:
  Makefile: add comment on CYGWIN_V15_WIN32API
2013-01-14 07:34:37 -08:00
Junio C Hamano
cdbada79f2 Makefile: add description on PERL/PYTHON_PATH
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-01-13 23:31:14 -08:00
Junio C Hamano
c566ea13fd Merge branch 'jc/merge-blobs'
Update the disused merge-tree proof-of-concept code.

* jc/merge-blobs:
  merge-tree: fix d/f conflicts
  merge-tree: add comments to clarify what these functions are doing
  merge-tree: lose unused "resolve_directories"
  merge-tree: lose unused "flags" from merge_list
  Which merge_file() function do you mean?
2013-01-11 18:34:24 -08:00
Junio C Hamano
378e5e4d9f Merge branch 'jn/less-reconfigure' into maint
When autoconf is used, any build on a different commit always ran
"config.status --recheck" even when unnecessary.

* jn/less-reconfigure:
  build: do not automatically reconfigure unless configure.ac changed
2013-01-11 16:48:03 -08:00
Christian Couder
022250adfd Makefile: detect when PYTHON_PATH changes
When make is run, the python scripts are created from *.py files that
are changed to use the python given by PYTHON_PATH. And PYTHON_PATH
is set by default to /usr/bin/python on Linux.

However, next time make is run with a different value in PYTHON_PATH,
we failed to regenerate these scripts.

Signed-off-by: Christian Couder <chriscool@tuxfamily.org>
Acked-by: Pete Wyckoff <pw@padd.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-01-10 14:14:37 -08:00
Junio C Hamano
5f35dfef25 Merge branch 'jc/comment-cygwin-win32api-in-makefile'
* jc/comment-cygwin-win32api-in-makefile:
  Makefile: add comment on CYGWIN_V15_WIN32API
2013-01-10 13:47:43 -08:00
Junio C Hamano
20e47e50a1 Merge branch 'jk/config-uname'
Move the bits to set fallback default based on the platform from
the main Makefile to a separate file, so that it can be included in
Makefiles in subdirectories.

* jk/config-uname:
  Makefile: hoist uname autodetection to config.mak.uname
2013-01-10 13:47:20 -08:00
Junio C Hamano
2adf7247ec Merge branch 'nd/wildmatch'
Allows pathname patterns in .gitignore and .gitattributes files
with double-asterisks "foo/**/bar" to match any number of directory
hierarchies.

* nd/wildmatch:
  wildmatch: replace variable 'special' with better named ones
  compat/fnmatch: respect NO_FNMATCH* even on glibc
  wildmatch: fix "**" special case
  t3070: Disable some failing fnmatch tests
  test-wildmatch: avoid Windows path mangling
  Support "**" wildcard in .gitignore and .gitattributes
  wildmatch: make /**/ match zero or more directories
  wildmatch: adjust "**" behavior
  wildmatch: fix case-insensitive matching
  wildmatch: remove static variable force_lower_case
  wildmatch: make wildmatch's return value compatible with fnmatch
  t3070: disable unreliable fnmatch tests
  Integrate wildmatch to git
  wildmatch: follow Git's coding convention
  wildmatch: remove unnecessary functions
  Import wildmatch from rsync
  ctype: support iscntrl, ispunct, isxdigit and isprint
  ctype: make sane_ctype[] const array

Conflicts:
	Makefile
2013-01-10 13:47:20 -08:00