gitweb.git
apply: convert threeway_stage to object_idbrian m. carlson Fri, 13 Mar 2015 23:39:36 +0000 (23:39 +0000)

apply: convert threeway_stage to object_id

Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

patch-id: convert to use struct object_idbrian m. carlson Fri, 13 Mar 2015 23:39:35 +0000 (23:39 +0000)

patch-id: convert to use struct object_id

Convert some magic numbers to the new GIT_SHA1 constants.

Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

commit: convert parts to struct object_idbrian m. carlson Fri, 13 Mar 2015 23:39:34 +0000 (23:39 +0000)

commit: convert parts to struct object_id

Convert struct commit_graft and necessary local parts of commit.c.
Also, convert several constants based on the hex length of an SHA-1 to
use GIT_SHA1_HEXSZ, and move several magic constants into variables for
readability.

Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff: convert struct combine_diff_path to object_idbrian m. carlson Fri, 13 Mar 2015 23:39:33 +0000 (23:39 +0000)

diff: convert struct combine_diff_path to object_id

Also, convert a constant to GIT_SHA1_HEXSZ.

Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

bulk-checkin.c: convert to use struct object_idbrian m. carlson Fri, 13 Mar 2015 23:39:32 +0000 (23:39 +0000)

bulk-checkin.c: convert to use struct object_id

Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

zip: use GIT_SHA1_HEXSZ for trailersbrian m. carlson Fri, 13 Mar 2015 23:39:31 +0000 (23:39 +0000)

zip: use GIT_SHA1_HEXSZ for trailers

Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

archive.c: convert to use struct object_idbrian m. carlson Fri, 13 Mar 2015 23:39:30 +0000 (23:39 +0000)

archive.c: convert to use struct object_id

Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

bisect.c: convert leaf functions to use struct object_idbrian m. carlson Fri, 13 Mar 2015 23:39:29 +0000 (23:39 +0000)

bisect.c: convert leaf functions to use struct object_id

Convert some constants to GIT_SHA1_HEXSZ.

Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

define utility functions for object IDsbrian m. carlson Fri, 13 Mar 2015 23:39:28 +0000 (23:39 +0000)

define utility functions for object IDs

There are several utility functions (hashcmp and friends) that are used
for comparing object IDs (SHA-1 values). Using these functions, which
take pointers to unsigned char, with struct object_id requires tiresome
access to the sha1 member, which bloats code and violates the desired
encapsulation. Provide wrappers around these functions for struct
object_id for neater, more maintainable code. Use the new constants to
avoid the hard-coded 20s and 40s throughout the original functions.

These functions simply call the underlying pointer-to-unsigned-char
versions to ensure that any performance improvements will be passed
through to the new functions.

Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

define a structure for object IDsbrian m. carlson Fri, 13 Mar 2015 23:39:27 +0000 (23:39 +0000)

define a structure for object IDs

Many places throughout the code use "unsigned char [20]" to store object IDs
(SHA-1 values). This leads to lots of hardcoded numbers throughout the
codebase. It also leads to confusion about the purposes of a buffer.

Introduce a structure for object IDs. This allows us to obtain the benefits
of compile-time checking for misuse. The structure is expected to remain
the same size and have the same alignment requirements on all known
platforms, compared to the array of unsigned char, although this is not
required for correctness.

Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

*config.txt: stick to camelCase naming conventionNguyễn Thái Ngọc Duy Wed, 11 Mar 2015 20:32:45 +0000 (16:32 -0400)

*config.txt: stick to camelCase naming convention

This should improve readability. Compare "thislongname" and
"thisLongName". The following keys are left in unchanged. We can
decide what to do with them later.

- am.keepcr
- core.autocrlf .safecrlf .trustctime
- diff.dirstat .noprefix
- gitcvs.usecrlfattr
- gui.blamehistoryctx .trustmtime
- pull.twohead
- receive.autogc
- sendemail.signedoffbycc .smtpsslcertpath .suppresscc

Helped-by: Eric Sunshine <sunshine@sunshineco.com>
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Eric Sunshine <sunshine@sunshineco.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

t5551: make EXPENSIVE test cheaperJeff King Fri, 13 Mar 2015 04:57:05 +0000 (00:57 -0400)

t5551: make EXPENSIVE test cheaper

We create 50,000 tags to check that we don't overflow the
command-line of fetch-pack. But by using run_with_cmdline_limit,
we can get the same effect with a much smaller number of
tags. This makes the test fast enough that we can drop the
EXPENSIVE prereq, which means people will actually run it.

It was not documented to do so, but this test was also the
only test of a clone-over-http that requires multiple POSTs
during the conversation. We can continue to test that by
dropping http.postbuffer to its minimum size, and checking
that we get two POSTs.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

t5541: move run_with_cmdline_limit to test-lib.shJeff King Fri, 13 Mar 2015 04:53:07 +0000 (00:53 -0400)

t5541: move run_with_cmdline_limit to test-lib.sh

We use this to test http pushing with a restricted
commandline. Other scripts (like t5551, which does http
fetching) will want to use it, too.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

t: pass GIT_TRACE through ApacheJeff King Fri, 13 Mar 2015 04:51:15 +0000 (00:51 -0400)

t: pass GIT_TRACE through Apache

Apache removes GIT_TRACE from the environment before running
git-http-backend. This can make it hard to debug the server
side of an http session. Let's let it through.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

t: redirect stderr GIT_TRACE to descriptor 4Jeff King Fri, 13 Mar 2015 04:50:56 +0000 (00:50 -0400)

t: redirect stderr GIT_TRACE to descriptor 4

If you run a test script like:

GIT_TRACE=1 ./t0061-run-command.sh

you may get test failures, because some tests capture and
check the stderr output from git commands (and with
GIT_TRACE set to 1, the trace output will be included
there).

When we see GIT_TRACE set like this, we print a warning to
the user. However, we can do even better than that by just
pointing it to descriptor 4, which all tests leave connected
to the test script's stderr. That's likely what the user
intended (and any scripts that do want to see GIT_TRACE
output will set GIT_TRACE themselves).

Not only does this avoid false negatives in the tests, but
it means the user will actually see trace output for git
calls that redirect their stderr (whereas before, it was
sometimes confusingly buried in a file).

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

t: translate SIGINT to an exitJeff King Fri, 13 Mar 2015 04:48:48 +0000 (00:48 -0400)

t: translate SIGINT to an exit

Right now if a test script receives SIGINT (e.g., because a
test was hanging and the user hit ^C), the shell exits
immediately. This can be annoying if the test script did any
global setup, like starting apache or git-daemon, as it will
not have an opportunity to clean up after itself. A
subsequent run of the test won't be able to start its own
daemon, and will either fail or skip the tests.

Instead, let's trap SIGINT to make sure we do a clean
shutdown, and just chain it to a normal exit (which will
trigger any cleanup).

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

upload-pack: do not check NULL return of lookup_unknown... Jeff King Fri, 13 Mar 2015 04:42:25 +0000 (00:42 -0400)

upload-pack: do not check NULL return of lookup_unknown_object

We check whether the return value of lookup_unknown_object
is NULL, but some code paths dereference it before our
check. This turns out not to be capable of causing a
segfault, though. The lookup_unknown_object function will
never return NULL, since the whole point is to allocate an
object struct if it does not find an existing one. So the
code here is not wrong, it is just confusing. Let's just
drop the NULL check.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

upload-pack: fix transfer.hiderefs over smart-httpJeff King Fri, 13 Mar 2015 04:42:12 +0000 (00:42 -0400)

upload-pack: fix transfer.hiderefs over smart-http

When upload-pack advertises the refs (either for a normal,
non-stateless request, or for the initial contact in a
stateless one), we call for_each_ref with the send_ref
function as its callback. send_ref, in turn, calls
mark_our_ref, which checks whether the ref is hidden, and
sets OUR_REF or HIDDEN_REF on the object as appropriate. If
it is hidden, mark_our_ref also returns "1" to signal
send_ref that the ref should not be advertised.

If we are not advertising refs, (i.e., the follow-up
invocation by an http client to send its "want" lines), we
use mark_our_ref directly as a callback to for_each_ref. Its
marking does the right thing, but when it then returns "1"
to for_each_ref, the latter interprets this as an error and
stops iterating. As a result, we skip marking all of the
refs that come lexicographically after it. Any "want" lines
from the client asking for those objects will fail, as they
were not properly marked with OUR_REF.

To solve this, we introduce a wrapper callback around
mark_our_ref which always returns 0 (even if the ref is
hidden, we want to keep iterating). We also tweak the
signature of mark_our_ref to exclude unnecessary parameters
that were present only to conform to the callback interface.
This should make it less likely for somebody to accidentally
use it as a callback in the future.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

untracked cache: guard and disable on system changesNguyễn Thái Ngọc Duy Sun, 8 Mar 2015 10:12:46 +0000 (17:12 +0700)

untracked cache: guard and disable on system changes

If the user enables untracked cache, then

- move worktree to an unsupported filesystem
- or simply upgrade OS
- or move the whole (portable) disk from one machine to another
- or access a shared fs from another machine

there's no guarantee that untracked cache can still function properly.
Record the worktree location and OS footprint in the cache. If it
changes, err on the safe side and disable the cache. The user can
'update-index --untracked-cache' again to make sure all conditions are
met.

This adds a new requirement that setup_git_directory* must be called
before read_cache() because we need worktree location by then, or the
cache is dropped.

This change does not cover all bases, you can fool it if you try
hard. The point is to stop accidents.

Helped-by: Eric Sunshine <sunshine@sunshineco.com>
Helped-by: brian m. carlson <sandals@crustytoothpaste.net>
Helped-by: Torsten Bögershausen <tboegi@web.de>
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

git-status.txt: advertisement for untracked cacheNguyễn Thái Ngọc Duy Sun, 8 Mar 2015 10:12:47 +0000 (17:12 +0700)

git-status.txt: advertisement for untracked cache

When a good user sees the "too long, consider -uno" advice when
running `git status`, they should check out the man page to find out
more. This change suggests they try untracked cache before -uno.

Helped-by: brian m. carlson <sandals@crustytoothpaste.net>
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

mingw32: add uname()Nguyễn Thái Ngọc Duy Sun, 8 Mar 2015 10:12:45 +0000 (17:12 +0700)

mingw32: add uname()

Helped-by: Eric Sunshine <sunshine@sunshineco.com>
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

t7063: tests for untracked cacheNguyễn Thái Ngọc Duy Sun, 8 Mar 2015 10:12:44 +0000 (17:12 +0700)

t7063: tests for untracked cache

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

update-index: test the system before enabling untracked... Nguyễn Thái Ngọc Duy Sun, 8 Mar 2015 10:12:43 +0000 (17:12 +0700)

update-index: test the system before enabling untracked cache

Helped-by: Eric Sunshine <sunshine@sunshineco.com>
Helped-by: Junio C Hamano <gitster@pobox.com>
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

update-index: manually enable or disable untracked... Nguyễn Thái Ngọc Duy Sun, 8 Mar 2015 10:12:42 +0000 (17:12 +0700)

update-index: manually enable or disable untracked cache

Overall time saving on "git status" is about 40% in the best case
scenario, removing ..collect_untracked() as the most time consuming
function. read and refresh index operations are now at the top (which
should drop when index-helper and/or watchman support is added). More
numbers and analysis below.

webkit.git
==========

169k files. 6k dirs. Lots of test data (i.e. not touched most of the
time)

Base status
-----------

Index version 4 in split index mode and cache-tree populated. No
untracked cache. It shows how time is consumed by "git status". The
same settings are used for other repos below.

18:28:10.199679 builtin/commit.c:1394 performance: 0.000000451 s: cmd_status:setup
18:28:10.474847 read-cache.c:1407 performance: 0.274873831 s: read_index
18:28:10.475295 read-cache.c:1407 performance: 0.000000656 s: read_index
18:28:10.728443 preload-index.c:131 performance: 0.253147487 s: read_index_preload
18:28:10.741422 read-cache.c:1254 performance: 0.012868340 s: refresh_index
18:28:10.752300 wt-status.c:623 performance: 0.010421357 s: wt_status_collect_changes_worktree
18:28:10.762069 wt-status.c:629 performance: 0.009644748 s: wt_status_collect_changes_index
18:28:11.601019 wt-status.c:632 performance: 0.838859547 s: wt_status_collect_untracked
18:28:11.605939 builtin/commit.c:1421 performance: 0.004835004 s: cmd_status:update_index
18:28:11.606580 trace.c:415 performance: 1.407878388 s: git command: 'git' 'status'

Populating status
-----------------

This is after enabling untracked cache and the cache is still empty.
We see a slight increase in .._collect_untracked() and update_index
(because new cache has to be written to $GIT_DIR/index).

18:28:18.915213 builtin/commit.c:1394 performance: 0.000000326 s: cmd_status:setup
18:28:19.197364 read-cache.c:1407 performance: 0.281901416 s: read_index
18:28:19.197754 read-cache.c:1407 performance: 0.000000546 s: read_index
18:28:19.451355 preload-index.c:131 performance: 0.253599607 s: read_index_preload
18:28:19.464400 read-cache.c:1254 performance: 0.012935336 s: refresh_index
18:28:19.475115 wt-status.c:623 performance: 0.010236920 s: wt_status_collect_changes_worktree
18:28:19.486022 wt-status.c:629 performance: 0.010801685 s: wt_status_collect_changes_index
18:28:20.362660 wt-status.c:632 performance: 0.876551366 s: wt_status_collect_untracked
18:28:20.396199 builtin/commit.c:1421 performance: 0.033447969 s: cmd_status:update_index
18:28:20.396939 trace.c:415 performance: 1.482695902 s: git command: 'git' 'status'

Populated status
----------------

After the cache is populated, wt_status_collect_untracked() drops 82%
from 0.838s to 0.144s. Overall time drops 45%. Top offenders are now
read_index() and read_index_preload().

18:28:20.408605 builtin/commit.c:1394 performance: 0.000000457 s: cmd_status:setup
18:28:20.692864 read-cache.c:1407 performance: 0.283980458 s: read_index
18:28:20.693273 read-cache.c:1407 performance: 0.000000661 s: read_index
18:28:20.958814 preload-index.c:131 performance: 0.265540254 s: read_index_preload
18:28:20.972375 read-cache.c:1254 performance: 0.013437429 s: refresh_index
18:28:20.983959 wt-status.c:623 performance: 0.011146646 s: wt_status_collect_changes_worktree
18:28:20.993948 wt-status.c:629 performance: 0.009879094 s: wt_status_collect_changes_index
18:28:21.138125 wt-status.c:632 performance: 0.144084737 s: wt_status_collect_untracked
18:28:21.173678 builtin/commit.c:1421 performance: 0.035463949 s: cmd_status:update_index
18:28:21.174251 trace.c:415 performance: 0.766707355 s: git command: 'git' 'status'

gentoo-x86.git
==============

This repository is a strange one with a balanced, wide and shallow
worktree (about 100k files and 23k dirs) and no .gitignore in
worktree. .._collect_untracked() time drops 88%, total time drops 56%.

Base status
-----------
18:20:40.828642 builtin/commit.c:1394 performance: 0.000000496 s: cmd_status:setup
18:20:41.027233 read-cache.c:1407 performance: 0.198130532 s: read_index
18:20:41.027670 read-cache.c:1407 performance: 0.000000581 s: read_index
18:20:41.171716 preload-index.c:131 performance: 0.144045594 s: read_index_preload
18:20:41.179171 read-cache.c:1254 performance: 0.007320424 s: refresh_index
18:20:41.185785 wt-status.c:623 performance: 0.006144638 s: wt_status_collect_changes_worktree
18:20:41.192701 wt-status.c:629 performance: 0.006780184 s: wt_status_collect_changes_index
18:20:41.991723 wt-status.c:632 performance: 0.798927029 s: wt_status_collect_untracked
18:20:41.994664 builtin/commit.c:1421 performance: 0.002852772 s: cmd_status:update_index
18:20:41.995458 trace.c:415 performance: 1.168427502 s: git command: 'git' 'status'
Populating status
-----------------
18:20:48.968848 builtin/commit.c:1394 performance: 0.000000380 s: cmd_status:setup
18:20:49.172918 read-cache.c:1407 performance: 0.203734214 s: read_index
18:20:49.173341 read-cache.c:1407 performance: 0.000000562 s: read_index
18:20:49.320013 preload-index.c:131 performance: 0.146671391 s: read_index_preload
18:20:49.328039 read-cache.c:1254 performance: 0.007921957 s: refresh_index
18:20:49.334680 wt-status.c:623 performance: 0.006172020 s: wt_status_collect_changes_worktree
18:20:49.342526 wt-status.c:629 performance: 0.007731746 s: wt_status_collect_changes_index
18:20:50.257510 wt-status.c:632 performance: 0.914864222 s: wt_status_collect_untracked
18:20:50.338371 builtin/commit.c:1421 performance: 0.080776477 s: cmd_status:update_index
18:20:50.338900 trace.c:415 performance: 1.371462446 s: git command: 'git' 'status'
Populated status
----------------
18:20:50.351160 builtin/commit.c:1394 performance: 0.000000571 s: cmd_status:setup
18:20:50.577358 read-cache.c:1407 performance: 0.225917338 s: read_index
18:20:50.577794 read-cache.c:1407 performance: 0.000000617 s: read_index
18:20:50.734140 preload-index.c:131 performance: 0.156345564 s: read_index_preload
18:20:50.745717 read-cache.c:1254 performance: 0.011463075 s: refresh_index
18:20:50.755176 wt-status.c:623 performance: 0.008877929 s: wt_status_collect_changes_worktree
18:20:50.763768 wt-status.c:629 performance: 0.008471633 s: wt_status_collect_changes_index
18:20:50.854885 wt-status.c:632 performance: 0.090988721 s: wt_status_collect_untracked
18:20:50.857765 builtin/commit.c:1421 performance: 0.002789097 s: cmd_status:update_index
18:20:50.858411 trace.c:415 performance: 0.508647673 s: git command: 'git' 'status'

linux-2.6
=========

Reference repo. Not too big. .._collect_status() drops 84%. Total time
drops 42%.

Base status
-----------
18:34:09.870122 builtin/commit.c:1394 performance: 0.000000385 s: cmd_status:setup
18:34:09.943218 read-cache.c:1407 performance: 0.072871177 s: read_index
18:34:09.943614 read-cache.c:1407 performance: 0.000000491 s: read_index
18:34:10.004364 preload-index.c:131 performance: 0.060748102 s: read_index_preload
18:34:10.008190 read-cache.c:1254 performance: 0.003714285 s: refresh_index
18:34:10.012087 wt-status.c:623 performance: 0.002775446 s: wt_status_collect_changes_worktree
18:34:10.016054 wt-status.c:629 performance: 0.003862140 s: wt_status_collect_changes_index
18:34:10.214747 wt-status.c:632 performance: 0.198604837 s: wt_status_collect_untracked
18:34:10.216102 builtin/commit.c:1421 performance: 0.001244166 s: cmd_status:update_index
18:34:10.216817 trace.c:415 performance: 0.347670735 s: git command: 'git' 'status'
Populating status
-----------------
18:34:16.595102 builtin/commit.c:1394 performance: 0.000000456 s: cmd_status:setup
18:34:16.666600 read-cache.c:1407 performance: 0.070992413 s: read_index
18:34:16.667012 read-cache.c:1407 performance: 0.000000606 s: read_index
18:34:16.729375 preload-index.c:131 performance: 0.062362492 s: read_index_preload
18:34:16.732565 read-cache.c:1254 performance: 0.003075517 s: refresh_index
18:34:16.736148 wt-status.c:623 performance: 0.002422201 s: wt_status_collect_changes_worktree
18:34:16.739990 wt-status.c:629 performance: 0.003746618 s: wt_status_collect_changes_index
18:34:16.948505 wt-status.c:632 performance: 0.208426710 s: wt_status_collect_untracked
18:34:16.961744 builtin/commit.c:1421 performance: 0.013151887 s: cmd_status:update_index
18:34:16.962233 trace.c:415 performance: 0.368537535 s: git command: 'git' 'status'
Populated status
----------------
18:34:16.970026 builtin/commit.c:1394 performance: 0.000000631 s: cmd_status:setup
18:34:17.046235 read-cache.c:1407 performance: 0.075904673 s: read_index
18:34:17.046644 read-cache.c:1407 performance: 0.000000681 s: read_index
18:34:17.113564 preload-index.c:131 performance: 0.066920253 s: read_index_preload
18:34:17.117281 read-cache.c:1254 performance: 0.003604055 s: refresh_index
18:34:17.121115 wt-status.c:623 performance: 0.002508345 s: wt_status_collect_changes_worktree
18:34:17.125089 wt-status.c:629 performance: 0.003871636 s: wt_status_collect_changes_index
18:34:17.156089 wt-status.c:632 performance: 0.030895703 s: wt_status_collect_untracked
18:34:17.169861 builtin/commit.c:1421 performance: 0.013686404 s: cmd_status:update_index
18:34:17.170391 trace.c:415 performance: 0.201474531 s: git command: 'git' 'status'

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

status: enable untracked cacheNguyễn Thái Ngọc Duy Sun, 8 Mar 2015 10:12:41 +0000 (17:12 +0700)

status: enable untracked cache

update_index_if_able() is moved down so that the updated untracked
cache could be written out.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

untracked-cache: temporarily disable with $GIT_DISABLE_... Nguyễn Thái Ngọc Duy Sun, 8 Mar 2015 10:12:40 +0000 (17:12 +0700)

untracked-cache: temporarily disable with $GIT_DISABLE_UNTRACKED_CACHE

This can be used to double check if results with untracked cache are
correctly, compared to vanilla version. Untracked cache remains in
index, but not used.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

untracked cache: mark index dirty if untracked cache... Nguyễn Thái Ngọc Duy Sun, 8 Mar 2015 10:12:39 +0000 (17:12 +0700)

untracked cache: mark index dirty if untracked cache is updated

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

untracked cache: print stats with $GIT_TRACE_UNTRACKED_... Nguyễn Thái Ngọc Duy Sun, 8 Mar 2015 10:12:38 +0000 (17:12 +0700)

untracked cache: print stats with $GIT_TRACE_UNTRACKED_STATS

This could be used to verify correct behavior in tests

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

untracked cache: avoid racy timestampsNguyễn Thái Ngọc Duy Sun, 8 Mar 2015 10:12:37 +0000 (17:12 +0700)

untracked cache: avoid racy timestamps

When a directory is updated within the same second that its timestamp
is last saved, we cannot realize the directory has been updated by
checking timestamps. Assume the worst (something is update). See
29e4d36 (Racy GIT - 2005-12-20) for more information.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

read-cache.c: split racy stat test to a separate functionNguyễn Thái Ngọc Duy Sun, 8 Mar 2015 10:12:36 +0000 (17:12 +0700)

read-cache.c: split racy stat test to a separate function

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

untracked cache: save to an index extensionNguyễn Thái Ngọc Duy Sun, 8 Mar 2015 10:12:33 +0000 (17:12 +0700)

untracked cache: save to an index extension

Helped-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

untracked cache: invalidate at index addition or removalNguyễn Thái Ngọc Duy Sun, 8 Mar 2015 10:12:35 +0000 (17:12 +0700)

untracked cache: invalidate at index addition or removal

Ideally we should implement untracked_cache_remove_from_index() and
untracked_cache_add_to_index() so that they update untracked cache
right away instead of invalidating it and wait for read_directory()
next time to deal with it. But that may need some more work in
unpack-trees.c. So stay simple as the first step.

The new call in add_index_entry_with_check() may look strange because
new calls usually stay close to cache_tree_invalidate_path(). We do it
a bit later than c_t_i_p() in this function because if it's about
replacing the entry with the same name, we don't care (but cache-tree
does).

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

ewah: add convenient wrapper ewah_serialize_strbuf()Nguyễn Thái Ngọc Duy Sun, 8 Mar 2015 10:12:32 +0000 (17:12 +0700)

ewah: add convenient wrapper ewah_serialize_strbuf()

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

untracked cache: load from UNTR index extensionNguyễn Thái Ngọc Duy Sun, 8 Mar 2015 10:12:34 +0000 (17:12 +0700)

untracked cache: load from UNTR index extension

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

untracked cache: don't open non-existent .gitignoreNguyễn Thái Ngọc Duy Sun, 8 Mar 2015 10:12:31 +0000 (17:12 +0700)

untracked cache: don't open non-existent .gitignore

This cuts down a signficant number of open(.gitignore) because most
directories usually don't have .gitignore files.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

untracked cache: mark what dirs should be recursed... Nguyễn Thái Ngọc Duy Sun, 8 Mar 2015 10:12:30 +0000 (17:12 +0700)

untracked cache: mark what dirs should be recursed/saved

If we redo this thing in a functional style, we would have one struct
untracked_dir as input tree and another as output. The input is used
for verification. The output is a brand new tree, reflecting current
worktree.

But that means recreate a lot of dir nodes even if a lot could be
shared between input and output trees in good cases. So we go with the
messy but efficient way, combining both input and output trees into
one. We need a way to know which node in this combined tree belongs to
the output. This is the purpose of this "recurse" flag.

"valid" bit can't be used for this because it's about data of the node
except the subdirs. When we invalidate a directory, we want to keep
cached data of the subdirs intact even though we don't really know
what subdir still exists (yet). Then we check worktree to see what
actual subdir remains on disk. Those will have 'recurse' bit set
again. If cached data for those are still valid, we may be able to
avoid computing exclude files for them. Those subdirs that are deleted
will have 'recurse' remained clear and their 'valid' bits do not
matter.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

untracked cache: record/validate dir mtime and reuse... Nguyễn Thái Ngọc Duy Sun, 8 Mar 2015 10:12:29 +0000 (17:12 +0700)

untracked cache: record/validate dir mtime and reuse cached output

The main readdir loop in read_directory_recursive() is replaced with a
new one that checks if cached results of a directory is still valid.

If a file is added or removed from the index, the containing directory
is invalidated (but not its subdirs). If directory's mtime is changed,
the same happens. If a .gitignore is updated, the containing directory
and all subdirs are invalidated recursively. If dir_struct#flags or
other conditions change, the cache is ignored.

If a directory is invalidated, we opendir/readdir/closedir and run the
exclude machinery on that directory listing as usual. If untracked
cache is also enabled, we'll update the cache along the way. If a
directory is validated, we simply pull the untracked listing out from
the cache. The cache also records the list of direct subdirs that we
have to recurse in. Fully excluded directories are seen as "untracked
files".

In the best case when no dirs are invalidated, read_directory()
becomes a series of

stat(dir), open(.gitignore), fstat(), read(), close() and optionally
hash_sha1_file()

For comparison, standard read_directory() is a sequence of

opendir(), readdir(), open(.gitignore), fstat(), read(), close(), the
expensive last_exclude_matching() and closedir().

We already try not to open(.gitignore) if we know it does not exist,
so open/fstat/read/close sequence does not apply to every
directory. The sequence could be reduced further, as noted in
prep_exclude() in another patch. So in theory, the entire best-case
read_directory sequence could be reduced to a series of stat() and
nothing else.

This is not a silver bullet approach. When you compile a C file, for
example, the old .o file is removed and a new one with the same name
created, effectively invalidating the containing directory's cache
(but not its subdirectories). If your build process touches every
directory, this cache adds extra overhead for nothing, so it's a good
idea to separate generated files from tracked files.. Editors may use
the same strategy for saving files. And of course you're out of luck
running your repo on an unsupported filesystem and/or operating system.

Helped-by: Eric Sunshine <sunshine@sunshineco.com>
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

untracked cache: make a wrapper around {open,read,close... Nguyễn Thái Ngọc Duy Sun, 8 Mar 2015 10:12:28 +0000 (17:12 +0700)

untracked cache: make a wrapper around {open,read,close}dir()

This allows us to feed different info to read_directory_recursive()
based on untracked cache in the next patch.

Helped-by: Ramsay Jones <ramsay@ramsay1.demon.co.uk>
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

untracked cache: invalidate dirs recursively if .gitign... Nguyễn Thái Ngọc Duy Sun, 8 Mar 2015 10:12:27 +0000 (17:12 +0700)

untracked cache: invalidate dirs recursively if .gitignore changes

It's easy to see that if an existing .gitignore changes, its SHA-1
would be different and invalidate_gitignore() is called.

If .gitignore is removed, add_excludes() will treat it like an empty
.gitignore, which again should invalidate the cached directory data.

if .gitignore is added, lookup_untracked() already fills initial
.gitignore SHA-1 as "empty file", so again invalidate_gitignore() is
called.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

untracked cache: initial untracked cache validationNguyễn Thái Ngọc Duy Sun, 8 Mar 2015 10:12:26 +0000 (17:12 +0700)

untracked cache: initial untracked cache validation

Make sure the starting conditions and all global exclude files are
good to go. If not, either disable untracked cache completely, or wipe
out the cache and start fresh.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

untracked cache: record .gitignore information and... Nguyễn Thái Ngọc Duy Sun, 8 Mar 2015 10:12:25 +0000 (17:12 +0700)

untracked cache: record .gitignore information and dir hierarchy

The idea is if we can capture all input and (non-rescursive) output of
read_directory_recursive(), and can verify later that all the input is
the same, then the second r_d_r() should produce the same output as in
the first run.

The requirement for this to work is stat info of a directory MUST
change if an entry is added to or removed from that directory (and
should not change often otherwise). If your OS and filesystem do not
meet this requirement, untracked cache is not for you. Most file
systems on *nix should be fine. On Windows, NTFS is fine while FAT may
not be [1] even though FAT on Linux seems to be fine.

The list of input of r_d_r() is in the big comment block in dir.h. In
short, the output of a directory (not counting subdirs) mainly depends
on stat info of the directory in question, all .gitignore leading to
it and the check_only flag when r_d_r() is called recursively. This
patch records all this info (and the output) as r_d_r() runs.

Two hash_sha1_file() are required for $GIT_DIR/info/exclude and
core.excludesfile unless their stat data matches. hash_sha1_file() is
only needed when .gitignore files in the worktree are modified,
otherwise their SHA-1 in index is used (see the previous patch).

We could store stat data for .gitignore files so we don't have to
rehash them if their content is different from index, but I think
.gitignore files are rarely modified, so not worth extra cache data
(and hashing penalty read-cache.c:verify_hdr(), as we will be storing
this as an index extension).

The implication is, if you change .gitignore, you better add it to the
index soon or you lose all the benefit of untracked cache because a
modified .gitignore invalidates all subdirs recursively. This is
especially bad for .gitignore at root.

This cached output is about untracked files only, not ignored files
because the number of tracked files is usually small, so small cache
overhead, while the number of ignored files could go really high
(e.g. *.o files mixing with source code).

[1] "Description of NTFS date and time stamps for files and folders"
http://support.microsoft.com/kb/299648

Helped-by: Torsten Bögershausen <tboegi@web.de>
Helped-by: David Turner <dturner@twopensource.com>
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

dir.c: optionally compute sha-1 of a .gitignore fileNguyễn Thái Ngọc Duy Sun, 8 Mar 2015 10:12:24 +0000 (17:12 +0700)

dir.c: optionally compute sha-1 of a .gitignore file

This is not used anywhere yet. But the goal is to compare quickly if a
.gitignore file has changed when we have the SHA-1 of both old (cached
somewhere) and new (from index or a tree) versions.

Helped-by: Junio C Hamano <gitster@pobox.com>
Helped-by: Torsten Bögershausen <tboegi@web.de>
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

tag: fix some mis-organized options in "-h" listingJeff King Thu, 12 Mar 2015 18:15:09 +0000 (14:15 -0400)

tag: fix some mis-organized options in "-h" listing

Running "git tag -h" currently prints:

[...]
Tag creation options
[...]
--column[=<style>] show tag list in columns
--sort <type> sort tags

Tag listing options
--contains <commit> print only tags that contain the commit
--points-at <object> print only tags of the object

The "--column" and "--sort" options should go under the "Tag listing" group.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

builtin/help.c: fix memory leakStefan Beller Mon, 9 Mar 2015 16:58:24 +0000 (09:58 -0700)

builtin/help.c: fix memory leak

Signed-off-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

bundle.c: fix memory leakStefan Beller Tue, 10 Mar 2015 23:51:48 +0000 (16:51 -0700)

bundle.c: fix memory leak

There was one continue statement without an accompanying `free(ref)`.
Instead of adding that, replace all the free&&continue with a goto
just after writing the refs, where we'd do the free anyway and then
reloop.

Signed-off-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

use isxdigit() for checking if a character is a hexadec... René Scharfe Mon, 9 Mar 2015 22:46:54 +0000 (23:46 +0100)

use isxdigit() for checking if a character is a hexadecimal digit

Use the standard function isxdigit() to make the intent clearer and
avoid using magic constants.

Signed-off-by: Rene Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

connect.c: do not leak "conn" after showing diagnosisStefan Beller Mon, 9 Mar 2015 16:58:22 +0000 (09:58 -0700)

connect.c: do not leak "conn" after showing diagnosis

When git_connect() is called to see how the URL is parsed for
debugging purposes with CONNECT_DIAG_URL set, the variable conn is
leaked. At this point in the codeflow, it only has its memory and
no other resource is associated with it, so it is sufficient to
clean it up by just freeing it.

Signed-off-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

config,completion: add color.status.unmergedMichael J Gruber Tue, 10 Mar 2015 16:11:09 +0000 (17:11 +0100)

config,completion: add color.status.unmerged

Reported-by: "Mladen B." <mladen074@gmail.com>
Signed-off-by: Michael J Gruber <git@drmicha.warpmail.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

t7510: do not fail when gpg warns about insecure memoryKyle J. McKay Mon, 9 Mar 2015 20:03:01 +0000 (13:03 -0700)

t7510: do not fail when gpg warns about insecure memory

Depending on how gpg was built, it may issue the following
message to stderr when run:

Warning: using insecure memory!

When the test is collecting gpg output it is therefore not
enough to just match on a "gpg: " prefix it must also match
on a "Warning: " prefix wherever it needs to match lines
that have been produced by gpg.

Signed-off-by: Kyle J. McKay <mackyle@gmail.com>
Acked-by: Michael J Gruber <git@drmicha.warpmail.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

t5528: do not fail with FreeBSD shellKyle J. McKay Sun, 8 Mar 2015 15:37:50 +0000 (08:37 -0700)

t5528: do not fail with FreeBSD shell

The FreeBSD shell converts this expression:

git ${1:+-c push.default="$1"} push

to this when "$1" is not empty:

git "-c push.default=$1" push

which causes git to fail. To avoid this we simply break up the
expansion into two parts so that the whitespace which creates
two arguments instead of one is outside the ${...} like so:

git ${1:+-c} ${1:+push.default="$1"} push

This has the desired effect on all platforms allowing the test
to pass on FreeBSD.

Signed-off-by: Kyle J. McKay <mackyle@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

imap-send: use cURL automatically when NO_OPENSSL definedKyle J. McKay Sun, 8 Mar 2015 05:13:55 +0000 (21:13 -0800)

imap-send: use cURL automatically when NO_OPENSSL defined

If both USE_CURL_FOR_IMAP_SEND and NO_OPENSSL are defined do
not force the user to add --curl to get a working git imap-send
command.

Instead automatically select --curl and warn and ignore the
--no-curl option. And while we're in there, correct the
warning message when --curl is requested but not supported.

Signed-off-by: Kyle J. McKay <mackyle@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

log: decorate HEAD with branch nameJunio C Hamano Tue, 10 Mar 2015 13:53:21 +0000 (14:53 +0100)

log: decorate HEAD with branch name

Currently, log decorations do not indicate which branch is checked out
and whether HEAD is detached.

When branch foo is checked out, change the "HEAD, foo" part of the
decorations to "HEAD -> foo". This serves to indicate both ref
decorations (helped by the spacing) as well as their relationshsip.
As a consequence, "HEAD" without any " -> " denotes a detached HEAD now.

Signed-off-by: Michael J Gruber <git@drmicha.warpmail.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

Merge branch 'jc/decorate-leaky-separator-color' into... Junio C Hamano Tue, 10 Mar 2015 22:17:37 +0000 (15:17 -0700)

Merge branch 'jc/decorate-leaky-separator-color' into HEAD

* jc/decorate-leaky-separator-color:
log --decorate: do not leak "commit" color into the next item
Documentation/config.txt: simplify boolean description in the syntax section
Documentation/config.txt: describe 'color' value type in the "Values" section
Documentation/config.txt: have a separate "Values" section
Documentation/config.txt: describe the structure first and then meaning
Documentation/config.txt: explain multi-valued variables once
Documentation/config.txt: avoid unnecessary negation

thread-utils.c: detect CPU count on older BSD-like... Kyle J. McKay Sun, 8 Mar 2015 07:14:37 +0000 (23:14 -0800)

thread-utils.c: detect CPU count on older BSD-like systems

Not all systems support using sysconf to detect the number
of available CPU cores. Older BSD and BSD-derived systems
only provide the information via the sysctl function.

If HAVE_BSD_SYSCTL is defined attempt to retrieve the number
of available CPU cores using the sysctl function.

If HAVE_BSD_SYSCTL is not defined or the sysctl function
fails, we still attempt to get the information via sysconf.

Signed-off-by: Kyle J. McKay <mackyle@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

configure: support HAVE_BSD_SYSCTL optionKyle J. McKay Sun, 8 Mar 2015 07:14:36 +0000 (23:14 -0800)

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>

help.c: use SHELL_PATH instead of hard-coded "/bin/sh"Kyle J. McKay Sun, 8 Mar 2015 05:08:00 +0000 (21:08 -0800)

help.c: use SHELL_PATH instead of hard-coded "/bin/sh"

If the user has set SHELL_PATH in the Makefile then we
should respect that value and use it.

Signed-off-by: Kyle J. McKay <mackyle@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

git-compat-util.h: move SHELL_PATH default into headerKyle J. McKay Sun, 8 Mar 2015 05:07:59 +0000 (21:07 -0800)

git-compat-util.h: move SHELL_PATH default into header

If SHELL_PATH is not defined we use "/bin/sh". However,
run-command.c is not the only file that needs to use
the default value so move it into a common header.

Signed-off-by: Kyle J. McKay <mackyle@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

git-instaweb: use @SHELL_PATH@ instead of /bin/shKyle J. McKay Sun, 8 Mar 2015 05:05:38 +0000 (21:05 -0800)

git-instaweb: use @SHELL_PATH@ instead of /bin/sh

If the user has configured a value for SHELL_PATH then
be sure to use it for any generated scripts instead of
hard-coding /bin/sh.

The first line of the script is handled specially, but
the embedded #!/bin/sh line in the here document will
not be automatically updated unless it uses @SHELL_PATH@.

Signed-off-by: Kyle J. McKay <mackyle@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

git-instaweb: allow running in a working tree subdirectoryKyle J. McKay Sun, 8 Mar 2015 05:04:09 +0000 (21:04 -0800)

git-instaweb: allow running in a working tree subdirectory

Signed-off-by: Kyle J. McKay <mackyle@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

Post 2.3 cycle (batch #9)Junio C Hamano Tue, 10 Mar 2015 20:53:49 +0000 (13:53 -0700)

Post 2.3 cycle (batch #9)

Signed-off-by: Junio C Hamano <gitster@pobox.com>

Merge branch 'mh/expire-updateref-fixes'Junio C Hamano Tue, 10 Mar 2015 20:52:39 +0000 (13:52 -0700)

Merge branch 'mh/expire-updateref-fixes'

Various issues around "reflog expire", e.g. using --updateref when
expiring a reflog for a symbolic reference, have been corrected
and/or made saner.

* mh/expire-updateref-fixes:
reflog_expire(): never update a reference to null_sha1
reflog_expire(): ignore --updateref for symbolic references
reflog: improve and update documentation
struct ref_lock: delete the force_write member
lock_ref_sha1_basic(): do not set force_write for missing references
write_ref_sha1(): move write elision test to callers
write_ref_sha1(): remove check for lock == NULL

Merge branch 'jk/diffcore-rename-duplicate'Junio C Hamano Tue, 10 Mar 2015 20:52:38 +0000 (13:52 -0700)

Merge branch 'jk/diffcore-rename-duplicate'

A corrupt input to "git diff -M" can cause us to segfault.

* jk/diffcore-rename-duplicate:
diffcore-rename: avoid processing duplicate destinations
diffcore-rename: split locate_rename_dst into two functions

config.txt: update versioncmp.prereleaseSuffixNguyễn Thái Ngọc Duy Tue, 10 Mar 2015 10:16:35 +0000 (17:16 +0700)

config.txt: update versioncmp.prereleaseSuffix

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

daemon: deglobalize hostname informationRené Scharfe Sat, 7 Mar 2015 10:50:37 +0000 (11:50 +0100)

daemon: deglobalize hostname information

Move the variables related to the client-supplied hostname into its own
struct, let execute() own an instance of that instead of storing the
information in global variables and pass the struct to any function that
needs to access it as a parameter.

The lifetime of the variables is easier to see this way. Allocated
memory is released within execute(). The strbufs don't have to be reset
anymore because they are written to only once at most: parse_host_arg()
is only called once by execute() and lookup_hostname() guards against
being called twice using hostname_lookup_done.

Signed-off-by: Rene Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

daemon: use strbuf for hostname infoRené Scharfe Sat, 7 Mar 2015 10:50:29 +0000 (11:50 +0100)

daemon: use strbuf for hostname info

Convert hostname, canon_hostname, ip_address and tcp_port to strbuf.
This allows to get rid of the helpers strbuf_addstr_or_null() and STRARG
because a strbuf always represents a valid (initially empty) string.

sanitize_client() is not needed anymore and sanitize_client_strbuf()
takes its place and name.

Helped-by: Jeff King <peff@peff.net>
Signed-off-by: Rene Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

git-gui: Makes chooser set 'gitdir' to the resolved... Remi Rampin Fri, 6 Mar 2015 16:21:53 +0000 (11:21 -0500)

git-gui: Makes chooser set 'gitdir' to the resolved path

If _is_git follows a "gitdir: ..." file link to get to the actual
repository, we want _gitdir to be set to that final path.

Signed-off-by: Chris Packham <judge.packham@gmail.com>
Signed-off-by: Remi Rampin <remirampin@gmail.com>
Signed-off-by: Pat Thoyts <patthoyts@users.sourceforge.net>

git-gui: Fixes chooser not accepting gitfilesRemi Rampin Fri, 6 Mar 2015 16:21:52 +0000 (11:21 -0500)

git-gui: Fixes chooser not accepting gitfiles

Support the case where .git is a platform independent symbolic link
and not a directory. This occurs when --separate-git-dir is used when
creating the local repository to store the .git directory elsewhere.

git-gui does not support such repositories when using the repository
chooser as the test to determine that the chosen directory is a git
repository fails for such repositories.

This commit enables _is_git to read the real location from the
symbolic link file.

Signed-off-by: Chris Packham <judge.packham@gmail.com>
Signed-off-by: Remi Rampin <remirampin@gmail.com>
Signed-off-by: Pat Thoyts <patthoyts@users.sourceforge.net>

git: treat "git -C '<path>'" as a no-op when <path... Karthik Nayak Fri, 6 Mar 2015 11:18:08 +0000 (16:48 +0530)

git: treat "git -C '<path>'" as a no-op when <path> is empty

'git -C ""' unhelpfully dies with error "Cannot change to ''",
whereas the shell treats `cd ""' as a no-op. Taking the shell's
behavior as a precedent, teach git to treat `-C ""' as a no-op, as
well.

Helped-by: Junio C Hamano <gitster@pobox.com>
Helped-by: Eric Sunshine <sunshine@sunshineco.com>
Signed-off-by: Karthik Nayak <karthik.188@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

Post 2.3 cycle (batch #8)Junio C Hamano Fri, 6 Mar 2015 23:05:39 +0000 (15:05 -0800)

Post 2.3 cycle (batch #8)

Signed-off-by: Junio C Hamano <gitster@pobox.com>

Merge branch 'bw/kwset-use-unsigned'Junio C Hamano Fri, 6 Mar 2015 23:02:33 +0000 (15:02 -0800)

Merge branch 'bw/kwset-use-unsigned'

The borrowed code in kwset API did not follow our usual convention
to use "unsigned char" to store values that range from 0-255.

* bw/kwset-use-unsigned:
kwset: use unsigned char to store values with high-bit set

Merge branch 'ak/t5516-typofix'Junio C Hamano Fri, 6 Mar 2015 23:02:32 +0000 (15:02 -0800)

Merge branch 'ak/t5516-typofix'

* ak/t5516-typofix:
t5516: correct misspelled pushInsteadOf

Merge branch 'ms/submodule-update-config-doc'Junio C Hamano Fri, 6 Mar 2015 23:02:31 +0000 (15:02 -0800)

Merge branch 'ms/submodule-update-config-doc'

The interaction between "git submodule update" and the
submodule.*.update configuration was not clearly documented.

* ms/submodule-update-config-doc:
submodule: improve documentation of update subcommand

Merge branch 'ja/clean-confirm-i18n'Junio C Hamano Fri, 6 Mar 2015 23:02:29 +0000 (15:02 -0800)

Merge branch 'ja/clean-confirm-i18n'

The prompt string "remove?" used when "git clean -i" asks the user
if a path should be removed was localizable, but the code always
expects a substring of "yes" to tell it to go ahead. Always show
[y/N] as part of this prompt to hint that the answer is not (yet)
localized.

* ja/clean-confirm-i18n:
Add hint interactive cleaning

Merge branch 'mk/diff-shortstat-dirstat-fix'Junio C Hamano Fri, 6 Mar 2015 23:02:28 +0000 (15:02 -0800)

Merge branch 'mk/diff-shortstat-dirstat-fix'

"git diff --shortstat --dirstat=changes" showed a dirstat based on
lines that was never asked by the end user in addition to the
dirstat that the user asked for.

* mk/diff-shortstat-dirstat-fix:
diff --shortstat --dirstat: remove duplicate output

Merge branch 'mg/doc-remote-tags-or-not'Junio C Hamano Fri, 6 Mar 2015 23:02:27 +0000 (15:02 -0800)

Merge branch 'mg/doc-remote-tags-or-not'

"git remote add" mentioned "--tags" and "--no-tags" and was not
clear that fetch from the remote in the future will use the default
behaviour when neither is given to override it.

* mg/doc-remote-tags-or-not:
git-remote.txt: describe behavior without --tags and --no-tags

Merge branch 'nd/grep-exclude-standard-help-fix'Junio C Hamano Fri, 6 Mar 2015 23:02:27 +0000 (15:02 -0800)

Merge branch 'nd/grep-exclude-standard-help-fix'

Description given by "grep -h" for its --exclude-standard option
was phrased poorly.

* nd/grep-exclude-standard-help-fix:
grep: correct help string for --exclude-standard

Merge branch 'mr/doc-clean-f-f'Junio C Hamano Fri, 6 Mar 2015 23:02:26 +0000 (15:02 -0800)

Merge branch 'mr/doc-clean-f-f'

Documentation update.

* mr/doc-clean-f-f:
Documentation/git-clean.txt: document that -f may need to be given twice

Merge branch 'ye/http-accept-language'Junio C Hamano Fri, 6 Mar 2015 23:02:24 +0000 (15:02 -0800)

Merge branch 'ye/http-accept-language'

Compilation fix for a recent topic in 'master'.

* ye/http-accept-language:
gettext.c: move get_preferred_languages() from http.c

Sync with 2.3.2Junio C Hamano Fri, 6 Mar 2015 22:59:12 +0000 (14:59 -0800)

Sync with 2.3.2

* maint:
Git 2.3.2

Git 2.3.2 v2.3.2Junio C Hamano Fri, 6 Mar 2015 22:58:14 +0000 (14:58 -0800)

Git 2.3.2

Signed-off-by: Junio C Hamano <gitster@pobox.com>

Merge branch 'rj/no-xopen-source-for-cygwin' into maintJunio C Hamano Fri, 6 Mar 2015 22:57:58 +0000 (14:57 -0800)

Merge branch 'rj/no-xopen-source-for-cygwin' into maint

Code cleanups.

* rj/no-xopen-source-for-cygwin:
git-compat-util.h: remove redundant code

Merge branch 'rs/simple-cleanups' into maintJunio C Hamano Fri, 6 Mar 2015 22:57:57 +0000 (14:57 -0800)

Merge branch 'rs/simple-cleanups' into maint

Code cleanups.

* rs/simple-cleanups:
sha1_name: use strlcpy() to copy strings
pretty: use starts_with() to check for a prefix
for-each-ref: use skip_prefix() to avoid duplicate string comparison
connect: use strcmp() for string comparison

Merge branch 'mm/am-c-doc' into maintJunio C Hamano Fri, 6 Mar 2015 22:57:56 +0000 (14:57 -0800)

Merge branch 'mm/am-c-doc' into maint

The configuration variable 'mailinfo.scissors' was hard to
discover in the documentation.

* mm/am-c-doc:
Documentation/git-am.txt: mention mailinfo.scissors config variable
Documentation/config.txt: document mailinfo.scissors

Merge branch 'ew/svn-maint-fixes' into maintJunio C Hamano Fri, 6 Mar 2015 22:57:55 +0000 (14:57 -0800)

Merge branch 'ew/svn-maint-fixes' into maint

Correct a breakage to git-svn around v2.2 era that triggers
premature closing of FileHandle.

* ew/svn-maint-fixes:
Git::SVN::*: avoid premature FileHandle closure
git-svn: fix localtime=true on non-glibc environments

Merge branch 'km/send-email-getopt-long-workarounds... Junio C Hamano Fri, 6 Mar 2015 22:57:54 +0000 (14:57 -0800)

Merge branch 'km/send-email-getopt-long-workarounds' into maint

Even though we officially haven't dropped Perl 5.8 support, the
Getopt::Long package that came with it does not support "--no-"
prefix to negate a boolean option; manually add support to help
people with older Getopt::Long package.

* km/send-email-getopt-long-workarounds:
git-send-email.perl: support no- prefix with older GetOptions

completion: simplify __git_remotes()SZEDER Gábor Wed, 4 Mar 2015 14:10:29 +0000 (15:10 +0100)

completion: simplify __git_remotes()

The __git_remotes() helper function lists the remotes from the config
file by processing the output of a 'git config' query. A simple 'git
remote' produces the exact same output, so run that instead.

Remotes under '$GIT_DIR/remotes' are still listed by running 'ls -1',
because 'git remote' unfortunately ignores them.

Signed-off-by: SZEDER Gábor <szeder@ira.uka.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

completion: add a test for __git_remotes() helper functionSZEDER Gábor Wed, 4 Mar 2015 14:10:28 +0000 (15:10 +0100)

completion: add a test for __git_remotes() helper function

The test checks that both remotes under '$GIT_DIR/remotes' and remotes
in the config file are listed.

Signed-off-by: SZEDER Gábor <szeder@ira.uka.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

rebase-interactive: re-word "item count" commentEric Sunshine Wed, 4 Mar 2015 07:53:05 +0000 (02:53 -0500)

rebase-interactive: re-word "item count" comment

97f05f43 (Show number of TODO items for interactive rebase, 2014-12-10)
taught rebase-interactive to display an item count in the instruction
list comments:

# Rebase 46640c6..5568fd5 onto 46640c6 (4 TODO item(s))
#
# Commands:
# p, pick = use commit
# ...

However, with the exception of the --edit-todo option, "TODO" is a
one-off term, never presented to the user by rebase-interactive in
any other context. The item count is in fact the number of commands
("pick", "edit", etc.) remaining on the instruction sheet, and the
comment immediately following it talks about "Commands". Consequently,
replace "(# TODO item(s))" with the more accurate and meaningful
"(# command(s))".

Signed-off-by: Eric Sunshine <sunshine@sunshineco.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

rebase-interactive: suppress whitespace preceding item... Eric Sunshine Wed, 4 Mar 2015 07:53:04 +0000 (02:53 -0500)

rebase-interactive: suppress whitespace preceding item count

97f05f43 (Show number of TODO items for interactive rebase, 2014-12-10)
taught rebase-interactive to compute an item count with 'wc -l' and
display it in the instruction list comments:

# Rebase 46640c6..5568fd5 onto 46640c6 (4 TODO item(s))

On Mac OS X, however, it renders as:

# Rebase 46640c6..5568fd5 onto 46640c6 ( 4 TODO item(s))

since 'wc -l' indents its output with leading spaces. Fix this.

Signed-off-by: Eric Sunshine <sunshine@sunshineco.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

git: make was_alias and done_help non-staticAlexander Kuleshov Mon, 2 Mar 2015 12:02:37 +0000 (18:02 +0600)

git: make was_alias and done_help non-static

'was_alias' variable does not need to store it's value on each
iteration in the loop; this variable gets assigned the result
of run_argv() every time in the loop before being used.

'done_help' variable does not need to be static variable too if
we move it out the loop.

Signed-off-by: Alexander Kuleshov <kuleshovmail@gmail.com>
Helped-by: Eric Sunshine <sunshine@sunshineco.com>
Helped-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

branch: name detached HEAD analogous to statusMichael J Gruber Fri, 6 Mar 2015 15:04:07 +0000 (16:04 +0100)

branch: name detached HEAD analogous to status

"git status" carefully names a detached HEAD "at" resp. "from" a rev or
ref depending on whether the detached HEAD has moved since. "git branch"
always uses "from", which can be confusing, because a status-aware user
would interpret this as moved detached HEAD.

Make "git branch" use the same logic and wording.

Signed-off-by: Michael J Gruber <git@drmicha.warpmail.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

wt-status: refactor detached HEAD analysisMichael J Gruber Fri, 6 Mar 2015 15:04:06 +0000 (16:04 +0100)

wt-status: refactor detached HEAD analysis

wt_status_print() is the only caller of wt_status_get_detached_from().
The latter performs most of the analysis of a detached HEAD, including
finding state->detached_from; the caller checks whether the detached
HEAD is still at state->detached_from or has moved away.

Move that last bit of analysis to wt_status_get_detached_from(), too,
and store the boolean result in state->detached_at.

Signed-off-by: Michael J Gruber <git@drmicha.warpmail.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

sequencer: preserve commit messagesMichael J Gruber Fri, 6 Mar 2015 13:55:32 +0000 (14:55 +0100)

sequencer: preserve commit messages

sequencer calls "commit" with default options, which implies
"--cleanup=default" unless the user specified something else in their
config. This leads to cherry-picked commits getting a cleaned up commit
message, which is usually not an intended side-effect.

Make the sequencer use "--cleanup=verbatim" so that it preserves commit
messages independent of the default, unless the user has set config for "commit"
or the message is amended with -s or -x.

Reported-by: Christoph Anton Mitterer <calestyo@scientia.net>
Signed-off-by: Michael J Gruber <git@drmicha.warpmail.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

commit/status: show the index-worktree diff with -v -vMichael J Gruber Fri, 6 Mar 2015 09:43:35 +0000 (10:43 +0100)

commit/status: show the index-worktree diff with -v -v

git commit and git status in long format show the diff between HEAD
and the index when given -v. This allows previewing a commit to be made.

They also list tracked files with unstaged changes, but without a diff.

Introduce '-v -v' which shows the diff between the index and the
worktree in addition to the HEAD index diff. This allows a review of unstaged
changes which might be missing from the commit.

In the case of '-v -v', additonal header lines

Changes to be committed:

and

Changes not staged for commit:

are inserted before the diffs, which are equal to those in the status
part; the latter preceded by 50*"-" to make it stick out more.

Signed-off-by: Michael J Gruber <git@drmicha.warpmail.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

t7508: test git status -vMichael J Gruber Fri, 6 Mar 2015 09:43:34 +0000 (10:43 +0100)

t7508: test git status -v

"status -v" had no test. Include one.

This also requires changing the .gitignore subtests, which is a good thing:
they include testing a .gitignore pattern now.

Signed-off-by: Michael J Gruber <git@drmicha.warpmail.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

t7508: .gitignore 'expect' and 'output' filesJunio C Hamano Fri, 6 Mar 2015 09:43:33 +0000 (10:43 +0100)

t7508: .gitignore 'expect' and 'output' files

These files are used to observe the behaviour of the 'status'
command and if there weren't any such observer, the expected
output from 'status' wouldn't even mention them.

Place them in .gitignore to unclutter the output expected by the
tests. An added benefit is that future tests can add such files
that are purely for use by the observer, i.e. the tests themselves,
by naming them as expect-foo and/or output-bar.

Signed-off-by: Michael J Gruber <git@drmicha.warpmail.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

zlib: initialize git_zstream in git_deflate_init{,_gzip... René Scharfe Thu, 5 Mar 2015 22:49:46 +0000 (23:49 +0100)

zlib: initialize git_zstream in git_deflate_init{,_gzip,_raw}

Clear the git_zstream variable at the start of git_deflate_init() etc.
so that callers don't have to do that.

Signed-off-by: Rene Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

archive-zip: mark text files in archivesRené Scharfe Thu, 5 Mar 2015 19:06:02 +0000 (20:06 +0100)

archive-zip: mark text files in archives

Set the text flag for ZIP archive entries that look like text files so
that unzip -a can be used to perform end-of-line conversions. Info-ZIP
zip does the same.

Detect binary files the same way as git diff and git grep do, namely by
checking for the attribute "diff" and its negation "-diff", and if none
is found by falling back to checking for the presence of NUL bytes in
the first few bytes of the file contents.

7-Zip, Windows' built-in ZIP functionality and Info-ZIP unzip without
the switch -a are not affected by the change and still extract text
files without doing any end-of-line conversions.

NB: The actual end-of-line style used in the archive entries doesn't
matter to unzip -a, as it converts any CR, CRLF and LF to the line end
characters appropriate for the platform it is running on.

Suggested-by: Ulrike Fischer <luatex@nililand.de>
Signed-off-by: Rene Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

Sync with maintJunio C Hamano Thu, 5 Mar 2015 21:16:27 +0000 (13:16 -0800)

Sync with maint

* maint:
Prepare for 2.3.2

Prepare for 2.3.2Junio C Hamano Thu, 5 Mar 2015 21:15:53 +0000 (13:15 -0800)

Prepare for 2.3.2