Commit Graph

43537 Commits

Author SHA1 Message Date
Nguyễn Thái Ngọc Duy
9d9babb84d grep/pcre: prepare locale-dependent tables for icase matching
The default tables are usually built with C locale and only suitable
for LANG=C or similar.  This should make case insensitive search work
correctly for all single-byte charsets.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-07-01 12:44:57 -07:00
Nguyễn Thái Ngọc Duy
e944d9d932 grep: rewrite an if/else condition to avoid duplicate expression
"!icase || ascii_only" is repeated twice in this if/else chain as this
series evolves. Rewrite it (and basically revert the first if
condition back to before the "grep: break down an "if" stmt..." commit).

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>
2016-07-01 12:44:57 -07:00
Nguyễn Thái Ngọc Duy
793dc676e0 grep/icase: avoid kwsset when -F is specified
Similar to the previous commit, we can't use kws on icase search
outside ascii range. But we can't simply pass the pattern to
regcomp/pcre like the previous commit because it may contain regex
special characters, so we need to quote the regex first.

To avoid misquote traps that could lead to undefined behavior, we
always stick to basic regex engine in this case. We don't need fancy
features for grepping a literal string anyway.

basic_regex_quote_buf() assumes that if the pattern is in a multibyte
encoding, ascii chars must be unambiguously encoded as single
bytes. This is true at least for UTF-8. For others, let's wait until
people yell up. Chances are nobody uses multibyte, non utf-8 charsets
anymore.

Noticed-by: Plamen Totev <plamen.totev@abv.bg>
Helped-by: René Scharfe <l.s.r@web.de>
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>
2016-07-01 12:44:30 -07:00
Johannes Schindelin
3324dd8f26 commit -S: avoid invalid pointer with empty message
While it is not recommended, fsck.c says:

	Not having a body is not a crime [...]

... which means that we cannot assume that the commit buffer
contains an empty line to separate header from body.  A commit
object with only a header without any body, not even without
a blank line after the header, is valid.

So let's tread carefully here.  strstr("\n\n") may find nothing
and return NULL.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-06-29 15:07:02 -07:00
Johannes Schindelin
054a5aee6f reset --hard: skip blank lines when reporting the commit subject
When there are blank lines at the beginning of a commit message, the
pretty printing machinery already skips them when showing a commit
subject (or the complete commit message). We shall henceforth do the
same when reporting the commit subject after the user called

	git reset --hard <commit>

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-06-29 15:03:36 -07:00
Johannes Schindelin
88ef402f9c sequencer: use skip_blank_lines() to find the commit subject
Just like we already taught the find_commit_subject() function (to make
it consistent with the code in pretty.c), we now simply skip leading
blank lines of the commit message.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-06-29 15:03:06 -07:00
Johannes Schindelin
84e213a30a commit -C: skip blank lines at the beginning of the message
Consistent with the pretty-printing machinery, we skip leading blank
lines (if any) of existing commit messages.

While Git itself only produces commit objects with a single empty line
between commit header and commit message, it is legal to have more than
one blank line (i.e. lines containing only white space, or no
characters) at the beginning of the commit message, and the
pretty-printing code already handles that.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-06-29 14:56:37 -07:00
Johannes Schindelin
fa90ab4a45 t3404: fix a grammo (commands are ran -> commands are run)
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-06-29 12:43:44 -07:00
Patrick Steinhardt
33ba9c648b rebase -i: restore autostash on abort
When we abort an interactive rebase we do so by calling
`die_abort`, which cleans up after us by removing the rebase
state directory. If the user has requested to use the autostash
feature, though, the state directory may also contain a reference
to the autostash, which will now be deleted.

Fix the issue by trying to re-apply the autostash in `die_abort`.
This will also handle the case where the autostash does not apply
cleanly anymore by recording it in a user-visible stash.

Reported-by: Daniel Hahler <git@thequod.de>
Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-06-29 09:51:00 -07:00
David A. Greene
5f35900849 contrib/subtree: Add a test for subtree rebase that loses commits
This test merges an external tree in as a subtree, makes some commits
on top of it and splits it back out.  In the process the added commits
are lost or the rebase aborts with an internal error.  The tests are
marked to expect failure so that we don't forget to fix it.

Signed-off-by: David A. Greene <greened@obbligato.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-06-28 09:21:28 -07:00
Johannes Schindelin
3d0a83382f color.h: remove obsolete comment about limitations on Windows
Originally, ANSI color sequences were supported on Windows only by
overriding the printf() and fprintf() functions, as mentioned in e7821d7
(Add a notice that only certain functions can print color escape codes,
2009-11-27).

As of eac14f8 (Win32: Thread-safe windows console output, 2012-01-14),
however, this is no longer the case, as the ANSI color sequence support
code needed to be replaced with a thread-safe version, one side effect
being that stdout and stderr handled no matter which function is used to
write to it.

So let's just remove the comment that is now obsolete.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-06-28 09:18:50 -07:00
Matthieu Moy
661c3e9bc0 doc: typeset HEAD and variants as literal
This is an application of the newly added CodingGuidelines to HEAD and
variants like FETCH_HEAD. It was obtained with:

  perl -pi -e "s/'([A-Z_]*HEAD)'/\`\$1\`/g" *.txt

Signed-off-by: Matthieu Moy <Matthieu.Moy@imag.fr>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-06-28 08:36:45 -07:00
Matthieu Moy
57103dbf70 CodingGuidelines: formatting HEAD in documentation
The current practice is:

git/Documentation$ git grep "'HEAD'" | wc -l
24
git/Documentation$ git grep "\`HEAD\`" | wc -l
66

Let's adopt the majority as a guideline.

Signed-off-by: Matthieu Moy <Matthieu.Moy@imag.fr>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-06-28 08:36:45 -07:00
Matthieu Moy
bb72e10a41 doc: typeset long options with argument as literal
We previously reformatted '--option' to `--option`. This patch reformats
'--option <arg>' to `--option <arg>`. Obtained with:

  perl -pi -e "s/'(--[a-z][a-z=<>-]* <[^>]*>)'/\`\$1\`/g" *.txt

Signed-off-by: Matthieu Moy <Matthieu.Moy@imag.fr>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-06-28 08:36:45 -07:00
Matthieu Moy
04b125de7e doc: typeset '--' as literal
This was obtained with:

  perl -pi -e "s/'--'/\`--\`/g" *.txt

Signed-off-by: Matthieu Moy <Matthieu.Moy@imag.fr>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-06-28 08:36:45 -07:00
Matthieu Moy
bcf9626a71 doc: typeset long command-line options as literal
Similarly to the previous commit, use backquotes instead of
forward-quotes, for long options.

This was obtained with:

  perl -pi -e "s/'(--[a-z][a-z=<>-]*)'/\`\$1\`/g" *.txt

and manual tweak to remove false positive in ascii-art (o'--o'--o' to
describe rewritten history).

Signed-off-by: Matthieu Moy <Matthieu.Moy@imag.fr>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-06-28 08:36:45 -07:00
Matthieu Moy
23f8239bbe doc: typeset short command-line options as literal
It was common in our documentation to surround short option names with
forward quotes, which renders as italic in HTML. Instead, use backquotes
which renders as monospace. This is one more step toward conformance to
Documentation/CodingGuidelines.

This was obtained with:

  perl -pi -e "s/'(-[a-z])'/\`\$1\`/g" *.txt

Signed-off-by: Matthieu Moy <Matthieu.Moy@imag.fr>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-06-28 08:20:52 -07:00
Matthieu Moy
46e22b70df Documentation/git-mv.txt: fix whitespace indentation
Replace spaces with tabs to avoid a warning when further patches change
these lines.

Signed-off-by: Matthieu Moy <Matthieu.Moy@imag.fr>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-06-28 08:20:52 -07:00
Junio C Hamano
2ff7dff01e Start preparing for 2.9.1
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-06-27 09:59:51 -07:00
Junio C Hamano
fda65fadb6 Merge branch 'rs/xdiff-hunk-with-func-line' into maint
"git show -W" (extend hunks to cover the entire function, delimited
by lines that match the "funcname" pattern) used to show the entire
file when a change added an entire function at the end of the file,
which has been fixed.

* rs/xdiff-hunk-with-func-line:
  xdiff: fix merging of appended hunk with -W
  grep: -W: don't extend context to trailing empty lines
  t7810: add test for grep -W and trailing empty context lines
  xdiff: don't trim common tail with -W
  xdiff: -W: don't include common trailing empty lines in context
  xdiff: ignore empty lines before added functions with -W
  xdiff: handle appended chunks better with -W
  xdiff: factor out match_func_rec()
  t4051: rewrite, add more tests
2016-06-27 09:56:24 -07:00
Junio C Hamano
df5a925523 Merge branch 'jk/rev-list-count-with-bitmap' into maint
"git rev-list --count" whose walk-length is limited with "-n"
option did not work well with the counting optimized to look at the
bitmap index.

* jk/rev-list-count-with-bitmap:
  rev-list: disable bitmaps when "-n" is used with listing objects
  rev-list: "adjust" results of "--count --use-bitmap-index -n"
2016-06-27 09:56:24 -07:00
Junio C Hamano
fbb4138cb2 Merge branch 'et/pretty-format-c-auto' into maint
The commands in `git log` family take %C(auto) in a custom format
string.  This unconditionally turned the color on, ignoring
--no-color or with --color=auto when the output is not connected to
a tty; this was corrected to make the format truly behave as
"auto".

* et/pretty-format-c-auto:
  format_commit_message: honor `color=auto` for `%C(auto)`
2016-06-27 09:56:23 -07:00
Junio C Hamano
0a20325a01 Merge branch 'ew/daemon-socket-keepalive' into maint
When "git daemon" is run without --[init-]timeout specified, a
connection from a client that silently goes offline can hang around
for a long time, wasting resources.  The socket-level KEEPALIVE has
been enabled to allow the OS to notice such failed connections.

* ew/daemon-socket-keepalive:
  daemon: enable SO_KEEPALIVE for all sockets
2016-06-27 09:56:22 -07:00
Eric Wong
ef1cf0167a xwrite: poll on non-blocking FDs
write(2) can hit the same EAGAIN/EWOULDBLOCK errors as read(2),
so busy-looping on a non-blocking FD is a waste of resources.

Currently, I do not know of a way for this happen:

* the NonBlocking directive in systemd does not apply to stdin,
  stdout, or stderr.

* xinetd provides no way to set the non-blocking flag at all

But theoretically, it's possible a careless C10K HTTP server
could use pipe2(..., O_NONBLOCK) to setup a pipe for
git-http-backend with only the intent to use non-blocking reads;
but accidentally leave non-blocking set on the write end passed
as stdout to git-upload-pack.

Followup-to: 1079c4be0b ("xread: poll on non blocking fds")

Signed-off-by: Eric Wong <e@80x24.org>
Reviewed-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-06-27 08:34:15 -07:00
Eric Wong
c22f620205 xread: retry after poll on EAGAIN/EWOULDBLOCK
We should continue to loop after EAGAIN/EWOULDBLOCK as the
intent of xread is to try until there is available data,
EOF, or an unrecoverable error.

Fixes: 1079c4be0b ("xread: poll on non blocking fds")

Signed-off-by: Eric Wong <e@80x24.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-06-27 08:33:21 -07:00
Alex Henrie
c2691e2add unpack-trees: fix English grammar in do-this-before-that messages
Signed-off-by: Alex Henrie <alexhenrie24@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-06-27 08:29:36 -07:00
Eric Wong
5f4e3bf536 gc: fix off-by-one error with gc.autoPackLimit
This matches the documentation and allows gc.autoPackLimit=1
to maintain a single pack without attempting a repack on every
"git gc --auto" invocation.

Signed-off-by: Eric Wong <e@80x24.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-06-27 08:28:47 -07:00
Nguyễn Thái Ngọc Duy
5c1ebcca4d grep/icase: avoid kwsset on literal non-ascii strings
When we detect the pattern is just a literal string, we avoid heavy
regex engine and use fast substring search implemented in kwsset.c.
But kws uses git-ctype which is locale-independent so it does not know
how to fold case properly outside ascii range. Let regcomp or pcre
take care of this case instead. Slower, but accurate.

Noticed-by: Plamen Totev <plamen.totev@abv.bg>
Helped-by: René Scharfe <l.s.r@web.de>
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>
2016-06-27 07:31:35 -07:00
Nguyễn Thái Ngọc Duy
d8acfe1eaf test-regex: expose full regcomp() to the command line
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-06-27 07:31:35 -07:00
Nguyễn Thái Ngọc Duy
949782d860 test-regex: isolate the bug test code
This is in preparation to turn test-regex into some generic regex
testing command.

Helped-by: Eric Sunshine <sunshine@sunshineco.com>
Helped-by: Ramsay Jones <ramsay@ramsayjones.plus.com>
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-06-27 07:31:35 -07:00
Nguyễn Thái Ngọc Duy
60452a30f5 grep: break down an "if" stmt in preparation for next changes
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-06-27 07:31:35 -07:00
Nguyễn Thái Ngọc Duy
82f6178af6 new-command.txt: correct the command description file
It has always been command-list.txt even at the time this
new-command.txt document is added.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-06-27 06:11:57 -07:00
Johannes Schindelin
412b9a16a0 t2300: "git --exec-path" is not usable in $PATH on Windows as-is
The "git" command prepends the exec-path to the PATH environment
variable for processes it spawns.  That is how ". git-sh-setup" in
our scripted Porcelains can find the dot-sourced file in the
exec-path location that is not usually on user's PATH.

When t2300 runs, because it is not spawned by the "git" command, the
scriptlet being tested did not run with a realistic setting of PATH
environment.  It lacked the exec-path on the PATH, and failed to
find the dot-sourced file.  A recent update to t2300 attempted to
fix this, with "PATH=$(git --exec-path):$PATH", which has been the
recommended way around v1.6.0 days (a script whose original was
written before that release that survives to this day is likely to
have such a line).

However, the "git --exec-path" command outputs C:\path\to\exec\dir
(not /c/path/to/exec/dir) on Windows; the recent update failed to
consider the problem that comes from it.

Even though Git itself, when doing the equivalent internally, does
so in a platform native way (i.e. on Windows, C:\path\to\exec\dir is
prepended to the existing value of %PATH% using ';' as a component
separator), the result is further massaged by bash and gets turned
into $PATH that uses /c/path/to/exec/dir with ':' separating the
components, which is the form understood by bash, so scripted
Porcelains find commands from PATH correctly.

An end user script written in shell, however, cannot prepend
"C:\path\to\exec\dir:" to the existing value of $PATH and expect
bash to magically turn it into the form it understands.  In other
words, "PATH=$(git --exec-path):$PATH" does not work as an emulation
of what "Git" internally does to the PATH on Windows.

To correctly emulate how exec-path is prepended to the PATH
environment internally on Windows, we'd need to convert
C:\git-sdk-64\usr\src\git to at least /c\git-sdk-64\usr\src\git
ourselves before prepending it to PATH.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-06-22 14:47:36 -07:00
Johannes Schindelin
4e1b06da25 commit.c: make find_commit_subject() more robust
Just like the pretty printing machinery, we should simply ignore
blank lines at the beginning of the commit messages.

This discrepancy was noticed when an early version of the
rebase--helper produced commit objects with more than one empty line
between the header and the commit message.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-06-22 13:24:17 -07:00
Johannes Schindelin
7735612244 pretty: make the skip_blank_lines() function public
This function will be used also in the find_commit_subject()
function.

While at it, rename the function to reflect that it skips not only
empty lines, but any lines consisting of only whitespace, too.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-06-22 13:23:56 -07:00
Jonathan Nieder
f79358279c doc: git-htmldocs.googlecode.com is no more
http://git-htmldocs.googlecode.com/git/git.html says

 There was no service found for the uri requested.

Link to the rendered documentation on Jekyll instead.

Reported-by: Andrea Stacchiotti <andreastacchiotti@gmail.com>
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-06-22 12:37:33 -07:00
Andrew Oakley
09667d013c git-p4: correct hasBranchPrefix verbose output
The logic here was inverted, you got a message saying the file is
ignored for each file that is not ignored.

Signed-off-by: Andrew Oakley <aoakley@roku.com>
Acked-by: Lars Schneider <larsxschneider@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-06-22 09:45:15 -07:00
Charles Bailey
fe0537aa6e t7810: fix duplicated test title
Signed-off-by: Charles Bailey <charles@hashpling.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-06-21 15:33:34 -07:00
Stefan Beller
5819c2eeff t5614: don't use subshells
Using a subshell for just one git command is both a waste in compute
overhead (create a new process) as well as in line count.

Suggested-by: Jeff King <peff@peff.net>
Signed-off-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-06-21 12:08:38 -07:00
Armin Kunaschik
d2addc3b96 t7800: readlink may not be available
The readlink(1) command is not available on all platforms (notably
not on AIX and HP-UX) and can be replaced in this test with the
"workaround"

ls -ld <name> | sed -e 's/.* -> //'

This is no universal readlink replacement but works in the
controlled test environment well enough.

Signed-off-by: Armin Kunaschik <megabreit@googlemail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-06-21 11:41:31 -07:00
Johannes Schindelin
e3efa94be9 perf: accommodate for MacOSX
As this developer has no access to MacOSX developer setups anymore,
Travis becomes the best bet to run performance tests on that OS.

However, on MacOSX /usr/bin/time is that good old BSD executable that
no Linux user cares about, as demonstrated by the perf-lib.sh's use
of GNU-ish extensions. And by the hard-coded path.

Let's just work around this issue by using gtime on MacOSX, the
Homebrew-provided GNU implementation onto which pretty much every
MacOSX power user falls back anyway.

To help other developers use Travis to run performance tests on
MacOSX, the .travis.yml file now sports a commented-out line that
installs GNU time via Homebrew.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Reviewed-by: Lars Schneider <larsxschneider@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-06-21 11:18:17 -07:00
Jeff King
bab748371a local_tzoffset: detect errors from tm_to_time_t
When we want to know the local timezone offset at a given
timestamp, we compute it by asking for localtime() at the
given time, and comparing the offset to GMT at that time.
However, there's some juggling between time_t and "struct
tm" which happens, which involves calling our own
tm_to_time_t().

If that function returns an error (e.g., because it only
handles dates up to the year 2099), it returns "-1", which
we treat as a time_t, and is clearly bogus, leading to
bizarre timestamps (that seem to always adjust the time back
to (time_t)(uint32_t)-1, in the year 2106).

It's not a good idea for local_tzoffset() to simply die
here; it would make it hard to run "git log" on a repository
with funny timestamps. Instead, let's just treat such cases
as "zero offset".

Reported-by: Norbert Kiesel <nkiesel@gmail.com>
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-06-20 15:08:07 -07:00
Jeff King
36d6792157 t0006: test various date formats
We ended up testing some of these date formats throughout
the rest of the suite (e.g., via for-each-ref's
"$(authordate:...)" format), but we never did so
systematically. t0006 is the right place for unit-testing of
our date-handling code.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-06-20 15:08:07 -07:00
Jeff King
fdba2cdec4 t0006: rename test-date's "show" to "relative"
The "show" tests are really only checking relative formats;
we should make that more clear.

This also frees up the "show" name to later check other
formats. We could later fold "relative" into a more generic
"show" command, but it's not worth it.  Relative times are a
special case already because we have to munge the concept of
"now" in our tests.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-06-20 15:08:07 -07:00
Johannes Schindelin
0767172b90 mingw: let the build succeed with DEVELOPER=1
The recently introduced developer flags identified a couple of
old-style function declarations in the Windows-specific code where
the parameter list was left empty instead of specifying "void"
explicitly. Let's just fix them.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-06-20 12:12:12 -07:00
Junio C Hamano
18a74a092b clone: do not let --depth imply --shallow-submodules
In v2.9.0, we prematurely flipped the default to force cloning
submodules shallowly, when the superproject is getting cloned
shallowly.  This is likely to fail when the upstream repositories
submodules are cloned from a repository that is not prepared to
serve histories that ends at a commit that is not at the tip of a
branch, and we know the world is not yet ready.

Use a safer default to clone the submodules fully, unless the user
tells us that she knows that the upstream repository of the
submodules are willing to cooperate with "--shallow-submodules"
option.

Noticed-by: Vadim Eisenberg <VADIME@il.ibm.com>
Helped-by: Jeff King <peff@peff.net>
Helped-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-06-20 11:35:28 -07:00
LE Manh Cuong
01247e0299 sh-setup: enclose setting of ${VAR=default} in double-quotes
We often make sure an environment variable is set to
something, either set by the user (in which case we do not
molest it) or set it to our default value (otherwise), with

	: ${VAR=default value}

i.e. running the no-op command ":" with ${VAR} as its
parameters (or the default value we supply), relying on that
":" is a no-op.

This pattern, even though it is no-op from correctness point
of view, still can be expensive if the existing value in VAR
has shell glob (because they will be expanded against
filesystem entities) and IFS whitespaces (because the value
need to be split into multiple parameters).  Our invocation
of ":" command does not care if the parameter given to it is
after the value in VAR goes through these processing.

Enclosing the whole thing in double-quote, i.e.

	: "${VAR=default value}"

avoids paying the unnecessary cost, so let's do so.

Signed-off-by: LE Manh Cuong <cuong.manhle.vn@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-06-19 14:07:04 -07:00
Michael J Gruber
cc6ee97cb3 Documentation/technical: signed merge tag format
Signed-off-by: Michael J Gruber <git@drmicha.warpmail.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-06-17 12:10:48 -07:00
Michael J Gruber
eda2f11ee3 Documentation/technical: signed commit format
Signed-off-by: Michael J Gruber <git@drmicha.warpmail.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-06-17 12:10:30 -07:00
Michael J Gruber
5f1abfeb69 Documentation/technical: signed tag format
Signed-off-by: Michael J Gruber <git@drmicha.warpmail.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-06-17 11:40:58 -07:00