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Author SHA1 Message Date
Johannes Schindelin
548009c0d5 merge_trees(): ensure that the callers release output buffer
The recursive merge machinery accumulates its output in an output
buffer, to be flushed at the end of merge_recursive(). At this point,
we forgot to release the output buffer.

When calling merge_trees() (i.e. the non-recursive part of the recursive
merge) directly, the output buffer is never flushed because the caller
may be merge_recursive() which wants to flush the output itself.

For the same reason, merge_trees() cannot release the output buffer: it
may still be needed.

Forgetting to release the output buffer did not matter much when running
git-checkout, or git-merge-recursive, because we exited after the
operation anyway. Ever since cherry-pick learned to pick a commit range,
however, this memory leak had the potential of becoming a problem.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-08-01 11:45:30 -07:00
Johannes Schindelin
f1e2426b28 merge-recursive: offer an option to retain the output in 'obuf'
Since 66a155b (Enable output buffering in merge-recursive., 2007-01-14),
we already accumulate the output in a buffer. The idea was to avoid
interfering with the progress output that goes to stderr, which is
unbuffered, when we write to stdout, which is buffered.

We extend that buffering to allow the caller to handle the output
(possibly suppressing it). This will help us when extending the
sequencer to do rebase -i's brunt work: it does not want the picks to
print anything by default but instead determine itself whether to print
the output or not.

Note that we also redirect the error messages into the output buffer
when the caller asked not to flush the output buffer, for two reasons:
1) to retain the correct output order, and 2) to allow the caller to
suppress *all* output.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-08-01 11:45:30 -07:00
Johannes Schindelin
dde75cb056 merge-recursive: write the commit title in one go
In 66a155b (Enable output buffering in merge-recursive., 2007-01-14), we
changed the code such that it prints the output in one go, to avoid
interfering with the progress output.

Let's make sure that the same holds true when outputting the commit
title: previously, we used several printf() statements to stdout and
assumed that stdout's buffer is large enough to hold the entire
commit title.

Apart from making that speculation unnecessary, we change the code to
add the message to the output buffer before flushing for another reason:
the next commit will introduce a new level of output buffering, where
the caller can request the output not to be flushed, but to be retained
for further processing.

This latter feature will be needed when teaching the sequencer to do
rebase -i's brunt work: it wants to control the output of the
cherry-picks (i.e. recursive merges).

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-08-01 11:45:28 -07:00
Johannes Schindelin
bc9204d4ef merge-recursive: flush output buffer before printing error messages
The data structure passed to the recursive merge machinery has a feature
where the caller can ask for the output to be buffered into a strbuf, by
setting the field 'buffer_output'.

Previously, we died without flushing, losing accumulated output.  With
this patch, we show the output first, and only then print the error
message.

Currently, the only user of that buffering is merge_recursive() itself,
to avoid the progress output to interfere.

In the next patches, we will introduce a new buffer_output mode that
forces merge_recursive() to retain the output buffer for further
processing by the caller. If the caller asked for that, we will then
also write the error messages into the output buffer. This is necessary
to give the caller more control not only how to react in case of errors
but also control how/if to display the error messages.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-08-01 11:45:27 -07:00
Kevin Willford
3e8e32c32e patch-ids: add flag to create the diff patch id using header only data
This will allow a diff patch id to be created using only the header data
so that the contents of the file will not have to be loaded.

Signed-off-by: Kevin Willford <kcwillford@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-07-29 14:10:01 -07:00
Kevin Willford
683f17ec44 patch-ids: replace the seen indicator with a commit pointer
The cherry_pick_list was looping through the original side checking the
seen indicator and setting the cherry_flag on the commit.  If we save
off the commit in the patch_id we can set the cherry_flag on the correct
commit when running through the other side when a patch_id match is found.

Signed-off-by: Kevin Willford <kcwillford@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-07-29 13:23:03 -07:00
Kevin Willford
dfb7a1b4d0 patch-ids: stop using a hand-rolled hashmap implementation
This change will use the hashmap from the hashmap.h to keep track of the
patch_ids that have been encountered instead of using an internal
implementation.  This simplifies the implementation of the patch ids.

Signed-off-by: Kevin Willford <kcwillford@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-07-29 13:23:03 -07:00
Jeff King
56dfeb6263 pack-objects: compute local/ignore_pack_keep early
In want_object_in_pack(), we can exit early from our loop if
neither "local" nor "ignore_pack_keep" are set. If they are,
however, we must examine each pack to see if it has the
object and is non-local or has a ".keep".

It's quite common for there to be no non-local or .keep
packs at all, in which case we know ahead of time that
looking further will be pointless. We can pre-compute this
by simply iterating over the list of packs ahead of time,
and dropping the flags if there are no packs that could
match.

Another similar strategy would be to modify the loop in
want_object_in_pack() to notice that we have already found
the object once, and that we are looping only to check for
"local" and "keep" attributes. If a pack has neither of
those, we can skip the call to find_pack_entry_one(), which
is the expensive part of the loop.

This has two advantages:

  - it isn't all-or-nothing; we still get some improvement
    when there's a small number of kept or non-local packs,
    and a large number of non-kept local packs

  - it eliminates any possible race where we add new
    non-local or kept packs after our initial scan. In
    practice, I don't think this race matters; we already
    cache the packed_git information, so somebody who adds a
    new pack or .keep file after we've started will not be
    noticed at all, unless we happen to need to call
    reprepare_packed_git() because a lookup fails.

    In other words, we're already racy, and the race is not
    a big deal (losing the race means we might include an
    object in the pack that would not otherwise be, which is
    an acceptable outcome).

However, it also has a disadvantage: we still loop over the
rest of the packs for each object to check their flags. This
is much less expensive than doing the object lookup, but
still not free. So if we wanted to implement that strategy
to cover the non-all-or-nothing cases, we could do so in
addition to this one (so you get the most speedup in the
all-or-nothing case, and the best we can do in the other
cases). But given that the all-or-nothing case is likely the
most common, it is probably not worth the trouble, and we
can revisit this later if evidence points otherwise.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-07-29 11:05:08 -07:00
Jeff King
cd37996795 pack-objects: break out of want_object loop early
When pack-objects collects the list of objects to pack
(either from stdin, or via its internal rev-list), it
filters each one through want_object_in_pack().

This function loops through each existing packfile, looking
for the object. When we find it, we mark the pack/offset
combo for later use. However, we can't just return "yes, we
want it" at that point. If --honor-pack-keep is in effect,
we must keep looking to find it in _all_ packs, to make sure
none of them has a .keep. Likewise, if --local is in effect,
we must make sure it is not present in any non-local pack.

As a result, the sum effort of these calls is effectively
O(nr_objects * nr_packs). In an ordinary repository, we have
only a handful of packs, and this doesn't make a big
difference. But in pathological cases, it can slow the
counting phase to a crawl.

This patch notices the case that we have neither "--local"
nor "--honor-pack-keep" in effect and breaks out of the loop
early, after finding the first instance. Note that our worst
case is still "objects * packs" (i.e., we might find each
object in the last pack we look in), but in practice we will
often break out early. On an "average" repo, my git.git with
8 packs, this shows a modest 2% (a few dozen milliseconds)
improvement in the counting-objects phase of "git
pack-objects --all <foo" (hackily instrumented by sticking
exit(0) right after list_objects).

But in a much more pathological case, it makes a bigger
difference. I ran the same command on a real-world example
with ~9 million objects across 1300 packs. The counting time
dropped from 413s to 45s, an improvement of about 89%.

Note that this patch won't do anything by itself for a
normal "git gc", as it uses both --honor-pack-keep and
--local.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-07-29 11:05:07 -07:00
Jeff King
a73cdd21c4 find_pack_entry: replace last_found_pack with MRU cache
Each pack has an index for looking up entries in O(log n)
time, but if we have multiple packs, we have to scan through
them linearly. This can produce a measurable overhead for
some operations.

We dealt with this long ago in f7c22cc (always start looking
up objects in the last used pack first, 2007-05-30), which
keeps what is essentially a 1-element most-recently-used
cache. In theory, we should be able to do better by keeping
a similar but longer cache, that is the same length as the
pack-list itself.

Since we now have a convenient generic MRU structure, we can
plug it in and measure. Here are the numbers for running
p5303 against linux.git:

Test                      HEAD^                HEAD
------------------------------------------------------------------------
5303.3: rev-list (1)      31.56(31.28+0.27)    31.30(31.08+0.20) -0.8%
5303.4: repack (1)        40.62(39.35+2.36)    40.60(39.27+2.44) -0.0%
5303.6: rev-list (50)     31.31(31.06+0.23)    31.23(31.00+0.22) -0.3%
5303.7: repack (50)       58.65(69.12+1.94)    58.27(68.64+2.05) -0.6%
5303.9: rev-list (1000)   38.74(38.40+0.33)    31.87(31.62+0.24) -17.7%
5303.10: repack (1000)    367.20(441.80+4.62)  342.00(414.04+3.72) -6.9%

The main numbers of interest here are the rev-list ones
(since that is exercising the normal object lookup code
path).  The single-pack case shouldn't improve at all; the
260ms speedup there is just part of the run-to-run noise
(but it's important to note that we didn't make anything
worse with the overhead of maintaining our cache). In the
50-pack case, we see similar results. There may be a slight
improvement, but it's mostly within the noise.

The 1000-pack case does show a big improvement, though. That
carries over to the repack case, as well. Even though we
haven't touched its pack-search loop yet, it does still do a
lot of normal object lookups (e.g., for the internal
revision walk), and so improves.

As a point of reference, I also ran the 1000-pack test
against a version of HEAD^ with the last_found_pack
optimization disabled. It takes ~60s, so that gives an
indication of how much even the single-element cache is
helping.

For comparison, here's a smaller repository, git.git:

Test                      HEAD^               HEAD
---------------------------------------------------------------------
5303.3: rev-list (1)      1.56(1.54+0.01)    1.54(1.51+0.02) -1.3%
5303.4: repack (1)        1.84(1.80+0.10)    1.82(1.80+0.09) -1.1%
5303.6: rev-list (50)     1.58(1.55+0.02)    1.59(1.57+0.01) +0.6%
5303.7: repack (50)       2.50(3.18+0.04)    2.50(3.14+0.04) +0.0%
5303.9: rev-list (1000)   2.76(2.71+0.04)    2.24(2.21+0.02) -18.8%
5303.10: repack (1000)    13.21(19.56+0.25)  11.66(18.01+0.21) -11.7%

You can see that the percentage improvement is similar.
That's because the lookup we are optimizing is roughly
O(nr_objects * nr_packs). Since the number of packs is
constant in both tests, we'd expect the improvement to be
linear in the number of objects. But the whole process is
also linear in the number of objects, so the improvement
is a constant factor.

The exact improvement does also depend on the contents of
the packs. In p5303, the extra packs all have 5 first-parent
commits in them, which is a reasonable simulation of a
pushed-to repository. But it also means that only 250
first-parent commits are in those packs (compared to almost
50,000 total in linux.git), and the rest are in the huge
"base" pack. So once we start looking at history in taht big
pack, that's where we'll find most everything, and even the
1-element cache gets close to 100% cache hits.  You could
almost certainly show better numbers with a more
pathological case (e.g., distributing the objects more
evenly across the packs). But that's simply not that
realistic a scenario, so it makes more sense to focus on
these numbers.

The implementation itself is a straightforward application
of the MRU code. We provide an MRU-ordered list of packs
that shadows the packed_git list. This is easy to do because
we only create and revise the pack list in one place. The
"reprepare" code path actually drops the whole MRU and
replaces it for simplicity. It would be more efficient to
just add new entries, but there's not much point in
optimizing here; repreparing happens rarely, and only after
doing a lot of other expensive work.  The key things to keep
optimized are traversal (which is just a normal linked list,
albeit with one extra level of indirection over the regular
packed_git list), and marking (which is a constant number of
pointer assignments, though slightly more than the old
last_found_pack was; it doesn't seem to create a measurable
slowdown, though).

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-07-29 11:05:07 -07:00
Jeff King
002f206faf add generic most-recently-used list
There are a few places in Git that would benefit from a fast
most-recently-used cache (e.g., the list of packs, which we
search linearly but would like to order based on locality).
This patch introduces a generic list that can be used to
store arbitrary pointers in most-recently-used order.

The implementation is just a doubly-linked list, where
"marking" an item as used moves it to the front of the list.
Insertion and marking are O(1), and iteration is O(n).

There's no lookup support provided; if you need fast
lookups, you are better off with a different data structure
in the first place.

There is also no deletion support. This would not be hard to
do, but it's not necessary for handling pack structs, which
are created and never removed.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-07-29 11:05:07 -07:00
Jeff King
3157c880f6 sha1_file: drop free_pack_by_name
The point of this function is to drop an entry from the
"packed_git" cache that points to a file we might be
overwriting, because our contents may not be the same (and
hence the only caller was pack-objects as it moved a
temporary packfile into place).

In older versions of git, this could happen because the
names of packfiles were derived from the set of objects they
contained, not the actual bits on disk. But since 1190a1a
(pack-objects: name pack files after trailer hash,
2013-12-05), the name reflects the actual bits on disk, and
any two packfiles with the same name can be used
interchangeably.

Dropping this function not only saves a few lines of code,
it makes the lifetime of "struct packed_git" much easier to
reason about: namely, we now do not ever free these structs.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-07-29 11:05:06 -07:00
Jeff King
77023ea3c3 t/perf: add tests for many-pack scenarios
Git's pack storage does efficient (log n) lookups in a
single packfile's index, but if we have multiple packfiles,
we have to linearly search each for a given object.  This
patch introduces some timing tests for cases where we have a
large number of packs, so that we can measure any
improvements we make in the following patches.

The main thing we want to time is object lookup. To do this,
we measure "git rev-list --objects --all", which does a
fairly large number of object lookups (essentially one per
object in the repository).

However, we also measure the time to do a full repack, which
is interesting for two reasons. One is that in addition to
the usual pack lookup, it has its own linear iteration over
the list of packs. And two is that because it it is the tool
one uses to go from an inefficient many-pack situation back
to a single pack, we care about its performance not only at
marginal numbers of packs, but at the extreme cases (e.g.,
if you somehow end up with 5,000 packs, it is the only way
to get back to 1 pack, so we need to make sure it performs
well).

We measure the performance of each command in three
scenarios: 1 pack, 50 packs, and 1,000 packs.

The 1-pack case is a baseline; any optimizations we do to
handle multiple packs cannot possibly perform better than
this.

The 50-pack case is as far as Git should generally allow
your repository to go, if you have auto-gc enabled with the
default settings. So this represents the maximum performance
improvement we would expect under normal circumstances.

The 1,000-pack case is hopefully rare, though I have seen it
in the wild where automatic maintenance was broken for some
time (and the repository continued to receive pushes). This
represents cases where we care less about general
performance, but want to make sure that a full repack
command does not take excessively long.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-07-29 11:05:06 -07:00
Junio C Hamano
f8f7adce9f Sync with maint
* maint:
  Some fixes for 2.9.3
2016-07-28 14:21:18 -07:00
Junio C Hamano
8213178c86 Eighth batch of topics for 2.10
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-07-28 14:20:48 -07:00
Junio C Hamano
2a96d39824 t9100: portability fix
Do not say "export VAR=VAL"; "VAR=VAL && export VAR" is always more
portable.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-07-28 14:20:13 -07:00
David Aguilar
32b8c581ec difftool: use Git::* functions instead of passing around state
Call Git::command() and friends directly wherever possible.
This makes it clear that these operations can be invoked directly
without needing to manage the current directory and related GIT_*
environment variables.

Eliminate find_repository() since we can now use wc_path() and
not worry about side-effects involving environment variables.

Signed-off-by: David Aguilar <davvid@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-07-28 14:01:55 -07:00
David Aguilar
98f917ed42 difftool: avoid $GIT_DIR and $GIT_WORK_TREE
Environment variables are global and hard to reason about.
Use the `--git-dir` and `--work-tree` arguments when invoking `git`
instead of relying on the environment.

Add a test to ensure that difftool's dir-diff feature works when these
variables are present in the environment.

Signed-off-by: David Aguilar <davvid@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-07-28 14:01:55 -07:00
Johannes Sixt
d949751859 rebase-interactive: trim leading whitespace from progress count
Interactive rebase uses 'wc -l' to write the current patch number
in a progress report. Some implementations of 'wc -l' produce spaces
before the number, leading to ugly output such as

  Rebasing (     3/8)

Remove the spaces using a trivial arithmetic evaluation.

Before 9588c52 (i18n: rebase-interactive: mark strings for
translation) this was not a problem because printf was used to
generate the text. Since that commit, the count is interpolated
directly from a shell variable into the text, where the spaces
remain. The total number of patches does not have this problem
even though it is interpolated from a shell variable in the same
manner, because the variable is set by an arithmetic evaluation.

Later in the script, there is a virtually identical case where
leading spaces are trimmed, but it uses a pattern substitution:

todocount=$(git stripspace --strip-comments <"$todo" | wc -l)
todocount=${todocount##* }

I did not choose this idiom because it adds a line of code, and
there is already an arithmetic evaluation in the vicinity of the
line that is changed here.

Signed-off-by: Johannes Sixt <j6t@kdbg.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-07-28 13:22:46 -07:00
Junio C Hamano
0f3d855efc Merge branch 'master' of git://git.bogomips.org/git-svn
* 'master' of git://git.bogomips.org/git-svn:
  git-svn: allow --version to work anywhere
  git-svn: document svn.authorsProg in config
2016-07-28 13:13:53 -07:00
Heiko Voigt
55cbe18e11 submodule-config: fix test binary crashing when no arguments given
Since arg[0] will be NULL without any argument here and starts_with()
does not like NULL-pointers.

Signed-off-by: Heiko Voigt <hvoigt@hvoigt.net>
Reviewed-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-07-28 13:05:36 -07:00
Heiko Voigt
0918e25077 submodule-config: combine early return code into one goto
So we have simpler return handling code and all the cleanup code in
almost one place.

Signed-off-by: Heiko Voigt <hvoigt@hvoigt.net>
Reviewed-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-07-28 13:05:31 -07:00
Heiko Voigt
514dea905a submodule-config: passing name reference for .gitmodule blobs
Commit 959b5455 (submodule: implement a config API for lookup of
.gitmodules values, 2015-08-18) implemented the initial version of the
submodule config cache. During development of that initial version we
extracted the function gitmodule_sha1_from_commit(). During that process
we missed that the strbuf rev was still used in config_from() and now is
left empty. Lets fix this by also returning this string.

This means that now when reading .gitmodules from revisions, the error
messages also contain a reference to the blob they are from.

Signed-off-by: Heiko Voigt <hvoigt@hvoigt.net>
Reviewed-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-07-28 13:05:14 -07:00
Junio C Hamano
08df31eecc Some fixes for 2.9.3
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-07-28 11:28:32 -07:00
Junio C Hamano
1ecc6b291c Merge branch 'ak/lazy-prereq-mktemp' into maint
A test that unconditionally used "mktemp" learned that the command
is not necessarily available everywhere.

* ak/lazy-prereq-mktemp:
  t7610: test for mktemp before test execution
2016-07-28 11:26:03 -07:00
Junio C Hamano
6cbec0da47 Merge branch 'nd/icase' into maint
"git grep -i" has been taught to fold case in non-ascii locales
correctly.

* nd/icase:
  grep.c: reuse "icase" variable
  diffcore-pickaxe: support case insensitive match on non-ascii
  diffcore-pickaxe: Add regcomp_or_die()
  grep/pcre: support utf-8
  gettext: add is_utf8_locale()
  grep/pcre: prepare locale-dependent tables for icase matching
  grep: rewrite an if/else condition to avoid duplicate expression
  grep/icase: avoid kwsset when -F is specified
  grep/icase: avoid kwsset on literal non-ascii strings
  test-regex: expose full regcomp() to the command line
  test-regex: isolate the bug test code
  grep: break down an "if" stmt in preparation for next changes
2016-07-28 11:26:03 -07:00
Junio C Hamano
8e4571e57a Merge branch 'sb/submodule-parallel-fetch' into maint
Fix recently introduced codepaths that are involved in parallel
submodule operations, which gave up on reading too early, and
could have wasted CPU while attempting to write under a corner
case condition.

* sb/submodule-parallel-fetch:
  hoist out handle_nonblock function for xread and xwrite
  xwrite: poll on non-blocking FDs
  xread: retry after poll on EAGAIN/EWOULDBLOCK
2016-07-28 11:26:02 -07:00
Junio C Hamano
c81d283675 Merge branch 'dk/blame-move-no-reason-for-1-line-context' into maint
"git blame -M" missed a single line that was moved within the file.

* dk/blame-move-no-reason-for-1-line-context:
  blame: require 0 context lines while finding moved lines with -M
2016-07-28 11:26:01 -07:00
Junio C Hamano
e5a730a1c3 Merge branch 'jk/test-match-signal' into maint
The test framework learned a new helper test_match_signal to
check an exit code from getting killed by an expected signal.

* jk/test-match-signal:
  t/lib-git-daemon: use test_match_signal
  test_must_fail: use test_match_signal
  t0005: use test_match_signal as appropriate
  tests: factor portable signal check out of t0005
2016-07-28 11:26:00 -07:00
Junio C Hamano
174f9e622f Merge branch 'js/am-call-theirs-theirs-in-fallback-3way' into maint
One part of "git am" had an oddball helper function that called
stuff from outside "his" as opposed to calling what we have "ours",
which was not gender-neutral and also inconsistent with the rest of
the system where outside stuff is usuall called "theirs" in
contrast to "ours".

* js/am-call-theirs-theirs-in-fallback-3way:
  am: counteract gender bias
2016-07-28 11:25:59 -07:00
Junio C Hamano
8a81d5f5f8 Merge branch 'js/t3404-grammo-fix' into maint
Grammofix.

* js/t3404-grammo-fix:
  t3404: fix a grammo (commands are ran -> commands are run)
2016-07-28 11:25:59 -07:00
Junio C Hamano
dcfb9d7d30 Merge branch 'nd/doc-new-command' into maint
Typofix in a doc.

* nd/doc-new-command:
  new-command.txt: correct the command description file
2016-07-28 11:25:57 -07:00
Junio C Hamano
87be95b6f9 Merge branch 'ew/gc-auto-pack-limit-fix' into maint
"gc.autoPackLimit" when set to 1 should not trigger a repacking
when there is only one pack, but the code counted poorly and did
so.

* ew/gc-auto-pack-limit-fix:
  gc: fix off-by-one error with gc.autoPackLimit
2016-07-28 11:25:56 -07:00
Junio C Hamano
52d637c422 Merge branch 'js/color-on-windows-comment' into maint
For a long time, we carried an in-code comment that said our
colored output would work only when we use fprintf/fputs on
Windows, which no longer is the case for the past few years.

* js/color-on-windows-comment:
  color.h: remove obsolete comment about limitations on Windows
2016-07-28 11:25:55 -07:00
Junio C Hamano
1032eb9c2a Merge branch 'mm/doc-tt' into maint
More mark-up updates to typeset strings that are expected to
literally typed by the end user in fixed-width font.

* mm/doc-tt:
  doc: typeset HEAD and variants as literal
  CodingGuidelines: formatting HEAD in documentation
  doc: typeset long options with argument as literal
  doc: typeset '--' as literal
  doc: typeset long command-line options as literal
  doc: typeset short command-line options as literal
  Documentation/git-mv.txt: fix whitespace indentation
2016-07-28 11:25:54 -07:00
Junio C Hamano
475495ff5e Merge branch 'js/sign-empty-commit-fix' into maint
"git commit --amend --allow-empty-message -S" for a commit without
any message body could have misidentified where the header of the
commit object ends.

* js/sign-empty-commit-fix:
  commit -S: avoid invalid pointer with empty message
2016-07-28 11:25:53 -07:00
Junio C Hamano
ae8daba601 Merge branch 'ps/rebase-i-auto-unstash-upon-abort' into maint
"git rebase -i --autostash" did not restore the auto-stashed change
when the operation was aborted.

* ps/rebase-i-auto-unstash-upon-abort:
  rebase -i: restore autostash on abort
2016-07-28 11:25:52 -07:00
Junio C Hamano
c12c71fabb Merge branch 'nd/ita-cleanup' into maint
Git does not know what the contents in the index should be for a
path added with "git add -N" yet, so "git grep --cached" should not
show hits (or show lack of hits, with -L) in such a path, but that
logic does not apply to "git grep", i.e. searching in the working
tree files.  But we did so by mistake, which has been corrected.

* nd/ita-cleanup:
  grep: fix grepping for "intent to add" files
  t7810-grep.sh: fix a whitespace inconsistency
  t7810-grep.sh: fix duplicated test name
2016-07-28 11:25:51 -07:00
Junio C Hamano
4966b58f3e Merge branch 'js/find-commit-subject-ignore-leading-blanks' into maint
A helper function that takes the contents of a commit object and
finds its subject line did not ignore leading blank lines, as is
commonly done by other codepaths.  Make it ignore leading blank
lines to match.

* js/find-commit-subject-ignore-leading-blanks:
  reset --hard: skip blank lines when reporting the commit subject
  sequencer: use skip_blank_lines() to find the commit subject
  commit -C: skip blank lines at the beginning of the message
  commit.c: make find_commit_subject() more robust
  pretty: make the skip_blank_lines() function public
2016-07-28 11:25:50 -07:00
Junio C Hamano
053e2fb579 Merge branch 'dg/subtree-rebase-test' into maint
Add a test to specify the desired behaviour that currently is not
available in "git rebase -Xsubtree=...".

* dg/subtree-rebase-test:
  contrib/subtree: Add a test for subtree rebase that loses commits
2016-07-28 11:25:49 -07:00
Junio C Hamano
b8307836d2 Merge branch 'sb/submodule-deinit-all'
A comment update for a topic that was merged to Git v2.8.

* sb/submodule-deinit-all:
  submodule deinit: remove outdated comment
2016-07-28 10:34:45 -07:00
Junio C Hamano
36f99a40a8 Merge branch 'ew/find-perl-on-freebsd-in-local'
Recent FreeBSD stopped making perl available at /usr/bin/perl;
switch the default the built-in path to /usr/local/bin/perl on not
too ancient FreeBSD releases.

* ew/find-perl-on-freebsd-in-local:
  config.mak.uname: correct perl path on FreeBSD
2016-07-28 10:34:44 -07:00
Junio C Hamano
b48dfd86c9 Merge branch 'ew/daemon-socket-keepalive'
Recent update to "git daemon" tries to enable the socket-level
KEEPALIVE, but when it is spawned via inetd, the standard input
file descriptor may not necessarily be connected to a socket.
Suppress an ENOTSOCK error from setsockopt().

* ew/daemon-socket-keepalive:
  Windows: add missing definition of ENOTSOCK
  daemon: ignore ENOTSOCK from setsockopt
2016-07-28 10:34:43 -07:00
Junio C Hamano
ad2d777604 Merge branch 'nd/pack-ofs-4gb-limit'
"git pack-objects" and "git index-pack" mostly operate with off_t
when talking about the offset of objects in a packfile, but there
were a handful of places that used "unsigned long" to hold that
value, leading to an unintended truncation.

* nd/pack-ofs-4gb-limit:
  fsck: use streaming interface for large blobs in pack
  pack-objects: do not truncate result in-pack object size on 32-bit systems
  index-pack: correct "offset" type in unpack_entry_data()
  index-pack: report correct bad object offsets even if they are large
  index-pack: correct "len" type in unpack_data()
  sha1_file.c: use type off_t* for object_info->disk_sizep
  pack-objects: pass length to check_pack_crc() without truncation
2016-07-28 10:34:42 -07:00
Junio C Hamano
2c608e0f7c Merge branch 'nd/worktree-lock'
"git worktree prune" protected worktrees that are marked as
"locked" by creating a file in a known location.  "git worktree"
command learned a dedicated command pair to create and remove such
a file, so that the users do not have to do this with editor.

* nd/worktree-lock:
  worktree.c: find_worktree() search by path suffix
  worktree: add "unlock" command
  worktree: add "lock" command
  worktree.c: add is_worktree_locked()
  worktree.c: add is_main_worktree()
  worktree.c: add find_worktree()
2016-07-28 10:34:42 -07:00
Junio C Hamano
d0b6966e3d Merge branch 'rs/notes-merge-no-toctou'
"git notes merge" had a code to see if a path exists (and fails if
it does) and then open the path for writing (when it doesn't).
Replace it with open with O_EXCL.

* rs/notes-merge-no-toctou:
  notes-merge: use O_EXCL to avoid overwriting existing files
2016-07-28 10:34:41 -07:00
Junio C Hamano
c97268c822 Merge branch 'js/rebase-i-tests'
A few tests that specifically target "git rebase -i" have been
added.

* js/rebase-i-tests:
  rebase -i: we allow extra spaces after fixup!/squash!
  rebase -i: demonstrate a bug with --autosquash
  t3404: add a test for the --gpg-sign option
2016-07-28 10:34:40 -07:00
Vasco Almeida
1b8132d99d i18n: config: unfold error messages marked for translation
Introduced in 473166b ("config: add 'origin_type' to config_source
struct", 2016-02-19), Git can inform the user about the origin of a
config error, but the implementation does not allow translators to
translate the keywords 'file', 'blob, 'standard input', and
'submodule-blob'. Moreover, for the second message, a reason for the
error is appended to the message, not allowing translators to translate
that reason either.

Unfold the message into several templates for each known origin_type.
That would result in better translation at the expense of code
verbosity.

Add enum config_oringin_type to ease management of the various
configuration origin types (blob, file, etc).  Previously origin type
was considered from command line if cf->origin_type == NULL, i.e.,
uninitialized. Now we set origin_type to CONFIG_ORIGIN_CMDLINE in
git_config_from_parameters() and configset_add_value().

For error message in git_parse_source(), use xstrfmt() function to
prepare the message string, instead of doing something like it's done
for die_bad_number(), because intelligibility and code conciseness are
improved for that instance.

Signed-off-by: Vasco Almeida <vascomalmeida@sapo.pt>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-07-28 09:11:09 -07:00
Vasco Almeida
996ee6d27a i18n: notes: mark comment for translation
Mark comment displayed when editing a note for translation.

Signed-off-by: Vasco Almeida <vascomalmeida@sapo.pt>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-07-28 09:09:18 -07:00
David Aguilar
d7fd792e1b subtree: adjust function definitions to match CodingGuidelines
We prefer a space between the function name and the parentheses, and no
space inside the parentheses.

The opening "{" should also be on the same line.

Suggested-by: Junio C Hamano <gitster@pobox.com>
Signed-off-by: David Aguilar <davvid@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-07-27 19:10:24 -07:00