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

The log --grep tests generate the expected out in different ways.
Make them all use command blocks so that subshells are avoided and the
expected output is easier to grasp visually.
Signed-off-by: NMichael J Gruber <git@drmicha.warpmail.net>
Signed-off-by: NJunio C Hamano <gitster@pobox.com>

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

Generally speaking, using more options will further narrow the
selection, but there are a few exceptions.  Document them.
Signed-off-by: NJunio C Hamano <gitster@pobox.com>

When we have both header expression (which has to be an OR node by
construction) and a pattern expression (which could be anything), we
create a new top-level OR node to bind them together, and the
resulting expression structure looks like this:

             OR
        /          \
       /            \
   pattern            OR
     / \           /     \
    .....    committer    OR
                         /   \
                     author   TRUE

The three elements on the top-level backbone that are inspected by
the "all-match" logic are "pattern", "committer" and "author".  When
there are more than one elements in the "pattern", the top-level
node of the "pattern" part of the subtree is an OR, and that node is
inspected by "all-match".

The result ends up ignoring the "--all-match" given from the command
line.  A match on either side of the pattern is considered a match,
hence:

        git log --grep=A --grep=B --author=C --all-match

shows the same "authored by C and has either A or B" that is correct
only when run without "--all-match".

Fix this by turning the resulting expression around when "--all-match"
is in effect, like this:

              OR
          /        \
         /          \
        /              OR
    committer        /    \
                 author    \
                           pattern

The set of nodes on the top-level backbone in the resulting
expression becomes "committer", "author", and the nodes that are on
the top-level backbone of the "pattern" subexpression.  This makes
the "all-match" logic inspect the same nodes in "pattern" as the
case without the author and/or the committer restriction, and makes
the earlier "log" example to show "authored by C and has A and has
B", which is what the command line expects.
Signed-off-by: NJunio C Hamano <gitster@pobox.com>

When threaded grep is in effect, the patterns are duplicated and
recompiled for each thread. Avoid "--debug" output during the
recompilation so that the output is given once instead of "1+nthreads"
times.
Signed-off-by: NMichael J Gruber <git@drmicha.warpmail.net>
Signed-off-by: NJunio C Hamano <gitster@pobox.com>

Our "grep" allows complex boolean expressions to be formed to match
each individual line with operators like --and, '(', ')' and --not.
Introduce the "--debug" option to show the parse tree to help people
who want to debug and enhance it.

Also "log" learns "--grep-debug" option to do the same.  The command
line parser to the log family is a lot more limited than the general
"git grep" parser, but it has special handling for header matching
(e.g. "--author"), and a parse tree is valuable when working on it.

Note that "--all-match" is *not* any individual node in the parse
tree.  It is an instruction to the evaluator to check all the nodes
in the top-level backbone have matched and reject a document as
non-matching otherwise.
Signed-off-by: NJunio C Hamano <gitster@pobox.com>

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

The option to autosquash is only used in case of an interactive rebase.
When merges are preserved, rebase uses an interactive rebase internally,
but in this case autosquash should still be disabled.
Signed-off-by: NVincent van Ravesteijn <vfr@lyx.org>
Signed-off-by: NJunio C Hamano <gitster@pobox.com>

"git fast-export" did not give a readable error message when the same
mark erroneously appeared twice in the --import-marks input.

Cc: Pieter de Bie <pdebie@ai.rug.nl>
Signed-off-by: NJohannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: NMax Horn <max@quendi.de>
Signed-off-by: NJunio C Hamano <gitster@pobox.com>

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

When "git rebase" was given a bad commit to replay the history on,
its error message did not correctly give the command line argument
it had trouble parsing.

By Erik Faye-Lund
* ef/maint-rebase-error-message:
  rebase: report invalid commit correctly

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

A minor compilation fix.

By Erik Faye-Lund
* ef/http-o-depends-on-gvf:
  Makefile: add missing GIT-VERSION-FILE dependency

"git grep -e '$pattern'", unlike the case where the patterns are read from
a file, did not treat individual lines in the given pattern argument as
separate regular expressions as it should.

By René Scharfe
* rs/maint-grep-F:
  grep: stop leaking line strings with -f
  grep: support newline separated pattern list
  grep: factor out do_append_grep_pat()
  grep: factor out create_grep_pat()

An author/committer name that is a single character was mishandled as an
invalid name by mistake.

By Jeff King
* jk/ident-split-fix:
  fix off-by-one error in split_ident_line

By Jeff King
* jk/pretty-commit-header-incomplete-line:
  avoid segfault when reading header of malformed commits

By Jeff King
* jk/format-person-part-buffer-limit:
  pretty: avoid buffer overflow in format_person_part

"git checkout" gave progress display even when the standard error
stream was not connected to the tty, which made little sense.

By Avery Pennarun
* ap/checkout-no-progress-for-non-tty:
  checkout: no progress messages if !isatty(2).

By Peter Krefting
via Peter Krefting
* 'maint' of git://github.com/git-l10n/git-po:
  Update Swedish translation (728t0f0u)

In 20fc9bc5 (Set HTTP user agent to git/GIT_VERSION, 2006-04-04),
http.o started recording GIT_VERSION, but http.o wasn't added
to the list of files that depends on GIT-VERSION-FILE.

Fix this, so mofications to GIT-VERSION-FILE will result in an
updated user-agent string.
Signed-off-by: NErik Faye-Lund <kusmabite@gmail.com>
Signed-off-by: NJunio C Hamano <gitster@pobox.com>

In 9765b6ab (rebase: align variable content, 2011-02-06), the code
to error out was moved up one level. Unfortunately, one reference
to a function parameter wasn't rewritten as it should, leading to
the wrong parameter being errored on.

This error was propagated by 71786f54 (rebase: factor out reference
parsing, 2011-02-06) and merged in 78c6e0f3 (Merge branch
'mz/rebase', 2011-04-28).

Correct this by reporting $onto_name istead.
Reported-By: NManuela Hutter <manuelah@opera.com>
Signed-off-by: NErik Faye-Lund <kusmabite@gmail.com>
Signed-off-by: NJunio C Hamano <gitster@pobox.com>

Signed-off-by: NPeter Krefting <peter@softwolves.pp.se>

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

When a submodule repository uses alternate object store mechanism, some
commands that were started from the superproject did not notice it and
failed with "No such object" errors.  The subcommands of "git submodule"
command that recursed into the submodule in a separate process were OK;
only the ones that cheated and peeked directly into the submodule's
repository from the primary process were affected.

By Heiko Voigt
* hv/submodule-alt-odb:
  teach add_submodule_odb() to look for alternates

The directory path used in "git diff --no-index", when it recurses
down, was broken with a recent update after v1.7.10.1 release.

By Bobby Powers
* bp/diff-no-index-strbuf-fix:
  diff --no-index: don't leak buffers in queue_diff
  diff --no-index: reset temporary buffer lengths on directory iteration

When adding the information from a tag, put an empty line between the
message of the tag and the commented-out signature verification
information.

At least for the kernel workflow, I often end up re-formatting the message
that people send me in the tag data. In that situation, putting the tag
message and the tag signature verification back-to-back then means that
normal editor "reflow parapgraph" command will get confused and think that
the signature is a continuation of the last message paragraph.

So I always end up having to first add an empty line, and then go back and
reflow the last paragraph. Let's just do it in git directly.

The extra vertical space also makes the verification visually stand out
more from the user-supplied message, so it looks a bit more readable to me
too, but that may be just an odd personal preference.
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: NJunio C Hamano <gitster@pobox.com>

From the FILES section of the git-config(1) manual:

	$GIT_DIR/config::
		Repository specific configuration file. (The filename is
		of course relative to the repository root, not the working
		directory.)

That's confusing because $GIT_DIR really is relative to the working
directory.

	$ GIT_DIR=.git GIT_EDITOR='pwd; echo editing'
	$ export GIT_DIR GIT_EDITOR
	$ git config --edit --local
	/home/jrn/src/git/Documentation
	editing .git/config

It turns out that the comment is a remnant from older days when the
heading said ".git/config" (which is indeed relative to the top of the
worktree).

It was only when the heading was changed to refer more precisely to
<git dir>/config (see v1.5.3.2~18, AsciiDoc tweak to avoid leading
dot, 2007-09-14) that the parenthesis stopped making sense.  Remove
it.
Signed-off-by: NJonathan Nieder <jrnieder@gmail.com>
Signed-off-by: NJunio C Hamano <gitster@pobox.com>

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

"git status --porcelain" ignored "--branch" option by mistake.  The output
for "git status --branch -z" was also incorrect and did not terminate the
record for the current branch name with NUL as asked.

By Jeff King
* jk/maint-status-porcelain-z-b:
  status: respect "-b" for porcelain format
  status: fix null termination with "-b"
  status: refactor null_termination option
  commit: refactor option parsing

If stderr isn't a tty, we shouldn't be printing incremental progress
messages.  In particular, this affects 'git checkout -f . >&logfile'
unless you provided -q.  And git-new-workdir has no way to provide -q.

It would probably be better to have progress.c check isatty(2) all the time,
but that wouldn't allow things like 'git push --progress' to force progress
reporting to on, so I won't try to solve the general case right now.

Actual fix suggested by Jeff King.
Signed-off-by: NAvery Pennarun <apenwarr@gmail.com>
Signed-off-by: NJunio C Hamano <gitster@pobox.com>

The default compiler and cflags were mostly "works for me"
when I built the original version. We need to be much less
careful here than usual, because we know we are building
only on OS X.  But it's only polite to at least respect the
CFLAGS and CC definitions that the user may have provided
earlier.

While we're at it, let's update our definitions and rules to
be more like the top-level Makefile; default our CFLAGS to
include -O2, and make sure we use CFLAGS and LDFLAGS when
linking.
Signed-off-by: NJeff King <peff@peff.net>
Signed-off-by: NJunio C Hamano <gitster@pobox.com>

If a commit object has a header line at the end of the
buffer that is missing its newline (or if it appears so
because the content on the header line contains a stray
NUL), then git will segfault.

Interestingly, this case is explicitly handled and we do
correctly scan the final line for the header we are looking
for. But if we don't find it, we will dereference NULL while
trying to look at the next line.

Git will never generate such a commit, but it's good to be
defensive. We could die() in such a case, but since it's
easy enough to handle it gracefully, let's just issue a
warning and continue (so you could still view such a commit
with "git show", though you might be missing headers after
the NUL).
Signed-off-by: NJeff King <peff@peff.net>
Signed-off-by: NJunio C Hamano <gitster@pobox.com>

When we parse the name and email from a commit to
pretty-print them, we usually can just put the result
directly into our strbuf result. However, if we are going to
use the mailmap, then we must first copy them into a
NUL-terminated buffer to feed to the mailmap machinery.

We did so by using strlcpy into a static buffer, but we used
it wrong. We fed it the length of the substring we wanted to
copy, but never checked that that length was less than the
size of the destination buffer.

The simplest fix is to just use snprintf to copy the
substring properly while still respecting the destination
buffer's size. It might seem like replacing the static
buffer with a strbuf would help, but we need to feed a
static buffer to the mailmap machinery anyway, so there's
not much benefit to handling arbitrary sizes.

A more ideal solution would be for mailmap to grow an
interface that:

  1. Takes a pointer and length combination, instead of
     assuming a NUL-terminated string.

  2. Returns a pointer to the mailmap's allocated string,
     rather than copying it into the buffer.

Then we could avoid the need for an extra buffer entirely.
However, doing this would involve a lot of refactoring of
mailmap and of string_list (which mailmap uses to store the
map itself). For now, let's do the simplest thing to fix the
bug.
Signed-off-by: NJeff King <peff@peff.net>
Signed-off-by: NJunio C Hamano <gitster@pobox.com>

Commit 4b340cfa split the logic to parse an ident line out of
pretty.c's format_person_part. But in doing so, it
accidentally introduced an off-by-one error that caused it
to think that single-character names were invalid.

This manifested itself as the "%an" format failing to show
anything at all for a single-character name.
Reported-by: NBrian Turner <bturner@atlassian.com>
Signed-off-by: NJeff King <peff@peff.net>
Signed-off-by: NJunio C Hamano <gitster@pobox.com>

When reading patterns from a file, we pass the lines as allocated string
buffers to append_grep_pat() and never free them.  That's not a problem
because they are needed until the program ends anyway.

However, now that the function duplicates the pattern string, we can
reuse the strbuf after calling that function.  This simplifies the code
a bit and plugs a minor memory leak.
Signed-off-by: NRene Scharfe <rene.scharfe@lsrfire.ath.cx>
Signed-off-by: NJunio C Hamano <gitster@pobox.com>

Currently, patterns that contain newline characters don't match anything
when given to git grep.  Regular grep(1) interprets patterns as lists of
newline separated search strings instead.

Implement this functionality by creating and inserting extra grep_pat
structures for patterns consisting of multiple lines when appending to
the pattern lists.  For simplicity, all pattern strings are duplicated.
The original pattern is truncated in place to make it contain only the
first line.
Requested-by: NTorne (Richard Coles) <torne@google.com>
Signed-off-by: NRene Scharfe <rene.scharfe@lsrfire.ath.cx>
Signed-off-by: NJunio C Hamano <gitster@pobox.com>

Add do_append_grep_pat() as a shared function for adding patterns to
the header pattern list and the general pattern list.
Signed-off-by: NRene Scharfe <rene.scharfe@lsrfire.ath.cx>
Signed-off-by: NJunio C Hamano <gitster@pobox.com>

Add create_grep_pat(), a shared helper for all grep pattern allocation
and initialization needs.
Signed-off-by: NRene Scharfe <rene.scharfe@lsrfire.ath.cx>
Signed-off-by: NJunio C Hamano <gitster@pobox.com>