merge-file has the same syntax as RCS merge, but supports only the
"-L" option.

For good measure, a test is added, which is quite minimal, though.

[jc: further fix for compliation errors included.]
Signed-off-by: NJohannes Schindelin <Johannes.Schindelin@gmx.de>
Signed-off-by: NJunio C Hamano <junkio@cox.net>

Suppose you have changes in new1 to the original lines 10-20,
and changes in new2 to the original lines 15-25, then the
changes to 10-25 conflict. But it is possible that the next
changes in new1 still overlap with this change to new2.

So, in the next iteration we have to look at the same change
to new2 again.

The old code tried to be a bit too clever. The new code is
shorter and more to the point: do not fiddle with the ranges
at all.

Also, xdl_append_merge() tries harder to combine conflicts.
This is necessary, because with the above simplification,
some conflicts would not be recognized as conflicts otherwise:

In the above scenario, it is possible that there is no other
change to new1. Absent the combine logic, the change in new2
would be recorded _again_, but as a non-conflict.
Signed-off-by: NJohannes Schindelin <Johannes.Schindelin@gmx.de>

If one side's block (of changed lines) ends later than the other
side's block, the former should be tested against the next block
of the other side, not vice versa.
Signed-off-by: NJohannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: NJunio C Hamano <junkio@cox.net>

The line range is i1 .. (i1 + chg1 - 1), not i1 .. (i1 + chg1).
Signed-off-by: NJohannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: NJunio C Hamano <junkio@cox.net>

This seem to pass the existing tests already.
Signed-off-by: NJunio C Hamano <junkio@cox.net>

The callers would want to know if the resulting merge is clean;
do not discard that information away after calling xdl_do_merge().
Signed-off-by: NJunio C Hamano <junkio@cox.net>

This new function implements the functionality of RCS merge, but
in-memory. It returns < 0 on error, otherwise the number of conflicts.

Finding the conflicting lines can be a very expensive task. You can
control the eagerness of this algorithm:

- a level value of 0 means that all overlapping changes are treated
  as conflicts,
- a value of 1 means that if the overlapping changes are identical,
  it is not treated as a conflict.
- If you set level to 2, overlapping changes will be analyzed, so that
  almost identical changes will not result in huge conflicts. Rather,
  only the conflicting lines will be shown inside conflict markers.

With each increasing level, the algorithm gets slower, but more accurate.
Note that the code for level 2 depends on the simple definition of
mmfile_t specific to git, and therefore it will be harder to port that
to LibXDiff.
Signed-off-by: NJohannes Schindelin <Johannes.Schindelin@gmx.de>
Signed-off-by: NJunio C Hamano <junkio@cox.net>

* maint:
  git-svn: avoid fetching files twice in the same revision

SVN is not entirely consistent in returning log information and
sometimes returns file information when adding subdirectories,
and sometimes it does not (only returning information about the
directory that was added).  This caused git-svn to occasionally
add a file to the list of files to be fetched twice.  Now we
change the data structure to be hash to avoid repeated fetches.

As of now (in master), this only affects repositories fetched
without deltas enabled (file://, and when manually overriden
with GIT_SVN_DELTA_FETCH=0); so this bug mainly affects users of
1.4.4.1 and maint.

Thanks to Florian Weimer for reporting this bug.

[jc: backported for maint]
Signed-off-by: NEric Wong <normalperson@yhbt.net>
Signed-off-by: NJunio C Hamano <junkio@cox.net>

In a repository with core.warnambiguousrefs turned off, and with
a branch and a tag that have the same name 'frotz',

	git merge frotz

would merge the commit pointed at by the tag 'frotz' but
incorrectly would identify what was merged as 'branch frotz' in
the merge message.
Signed-off-by: NJunio C Hamano <junkio@cox.net>

The fact that git has previously used symbolic links for representing
symbolic refs doesn't seem relevant to the current function of
git-symbolic-ref.  This patch makes less of a big deal about the
symbolic link history and instead focuses on what git does now.
Signed-off-by: NAndy Parkins <andyparkins@gmail.com>
Signed-off-by: NJunio C Hamano <junkio@cox.net>

'git diff --cached' still works, but its use is discouraged
in the documentation. 'git diff --index' does the same thing
and is consistent with how 'git apply --index' works.
Signed-off-by: NAndreas Ericsson <ae@op5.se>
Signed-off-by: NJunio C Hamano <junkio@cox.net>

Without this patch "git commit file.c file2.c" produces the not
so stellar output:

	error: pathspec 'file.c' did not match any.
	error: pathspec 'file2.c' did not match any.

With this patch, the output is changed to:

	error: pathspec 'file.c' did not match any file(s) known to git.
	error: pathspec 'file2.c' did not match any file(s) known to git.
	Did you forget to 'git add'?
Signed-off-by: NAndreas Ericsson <ae@op5.se>
Signed-off-by: NJunio C Hamano <junkio@cox.net>

The final 'nr_result' and 'written' values must always be the same
otherwise we're in deep trouble.  So let's remove a redundent report.

And for paranoia sake let's make sure those two variables are actually
equal after all objects are written (one never knows).
Signed-off-by: NNicolas Pitre <nico@cam.org>
Signed-off-by: NJunio C Hamano <junkio@cox.net>

* master.kernel.org:/pub/scm/gitk/gitk:
  gitk: Fix enabling/disabling of menu items on Mac OS X

* branch 'maint':
  Document git-repo-config --bool/--int options.
  tutorial: talk about user.name early and don't start with commit -a
  git-blame: fix rev parameter handling.

Signed-off-by: NAndy Parkins <andyparkins@gmail.com>
Signed-off-by: NJunio C Hamano <junkio@cox.net>

Introducing yourself to git early would be a good idea; otherwise
the user may not find the mistake until much later when "git log"
is learned.

Teaching "commit -a" without saying that it is a shortcut for
listing the paths to commit leaves the user puzzled.  Teach the
form with explicit paths first.
Signed-off-by: NJunio C Hamano <junkio@cox.net>

We lacked "--" termination in the underlying init_revisions() call
which made it impossible to specify a revision that happens to
have the same name as an existing file.
Signed-off-by: NJunio C Hamano <junkio@cox.net>

* jc/globfetch:
  fetch-pack: do not barf when duplicate re patterns are given
  git-fetch: allow forcing glob pattern in refspec
  git-fetch: allow glob pattern in refspec
  git-fetch: fix dumb protocol transport to fetch from pack-pruned ref
  git-fetch: reuse ls-remote result.

* maint:
  git blame -C: fix output format tweaks when crossing file boundary.

We used to get the case that more than two paths came from the
same commit wrong when computing the output width and deciding
to turn on --show-name option automatically.  When we find that
lines that came from a path that is different from what we
started digging from, we should always turn --show-name on, and
we should count the name length for all files involved.
Signed-off-by: NJunio C Hamano <junkio@cox.net>

After the bugfix to connect to repositories where the user has
limited read permissions, multi-init was broken due to our
SVN::Ra connection being limited to working in a subdirectory;
so we now create a new Ra connection for init-ing branches
and another for tags

Along with that fix, allow the user to use the command-line
option flags for multi-init (--revision being the most notable;
but also --no-auth-cache, --config-dir, --username (for passing
to SVN), and --shared/--template for passing to git-init-db
Signed-off-by: NEric Wong <normalperson@yhbt.net>
Signed-off-by: NJunio C Hamano <junkio@cox.net>

Eliminate 'commit' from some places and plug 'dcommit' more.
Also update the section --id (GIT_SVN_ID) usage since we
have multi-init/multi-fetch now.
Signed-off-by: NEric Wong <normalperson@yhbt.net>
Signed-off-by: NJunio C Hamano <junkio@cox.net>

 * match LESS environment settings to those in pager.c
 * parse diff.color and pager.color settings in the
   config file, and pass --color to git-log
 * --color and --pager= settings are supported
Signed-off-by: NEric Wong <normalperson@yhbt.net>
Signed-off-by: NJunio C Hamano <junkio@cox.net>

Also remove asterisks for readability, and suggest use of
git-config for easy cut & pasting.
Signed-off-by: NHan-Wen Nienhuys <hanwen@xs4all.nl>
Signed-off-by: NJunio C Hamano <junkio@cox.net>

Commit 35e65ecc broke completion of local refs, e.g. "git pull . fo<tab>"
no longer would complete to "foo".  Instead it printed out an internal
git error ("fatal: Not a git repository: '.'").

The break occurred when I tried to improve performance by switching from
git-peek-remote to git-for-each-ref.  Apparently git-peek-remote will
drop into directory "$1/.git" (where $1 is its first parameter) if it
is given a repository with a working directory.  This allowed the bash
completion code to work properly even though it was not handing over
the true repository directory.

So now we do a stat in bash to see if we need to add "/.git" to the
path string before running any command with --git-dir.

I also tried to optimize away two "git rev-parse --git-dir" invocations
in common cases like "git log fo<tab>" as typically the user is in the
top level directory of their project and therefore the .git subdirectory
is in the current working directory.  This should make a difference on
systems where fork+exec might take a little while.
Signed-off-by: NShawn O. Pearce <spearce@spearce.org>
Signed-off-by: NJunio C Hamano <junkio@cox.net>

Signed-off-by: NShawn O. Pearce <spearce@spearce.org>
Signed-off-by: NJunio C Hamano <junkio@cox.net>

There was nothing printed in the code originally because I left
out a pair of parentheses.  Nevertheless, the affected code has
been replaced with a more efficient version that respects the -q
flag as well as requiring less bandwidth.

We save some bandwidth by not requesting changed paths
information when calling get_log() since we're using the delta
fetcher.
Signed-off-by: NEric Wong <normalperson@yhbt.net>
Signed-off-by: NJunio C Hamano <junkio@cox.net>

finish_report does seem to return a useful value indicating success
or failure, so we'll just set a flag when close_edit is called
(it is not called on failures, nor is abort_edit) and check
the flag before proceeding.

Thanks to Pazu for pointing this out.
Signed-off-by: NEric Wong <normalperson@yhbt.net>
Signed-off-by: NJunio C Hamano <junkio@cox.net>

Don't force the user to specify more than one revision parameter,
thus making git-shortlog behave more like git-log.
'git-shortlog master' will now produce the expected results; the
other end of the range simply is the (oldest) root commit.
Signed-off-by: NRene Scharfe <rene.scharfe@lsrfire.ath.cx>
Signed-off-by: NJunio C Hamano <junkio@cox.net>

* Enable test for delta transfers in full-svn-test.

* Run tests against the root of the repository so we won't have
  to revisit 308906fa and
  efe4631d again.
  The graft-branches test still runs as before.
Signed-off-by: NEric Wong <normalperson@yhbt.net>
Signed-off-by: NJunio C Hamano <junkio@cox.net>

This should drastically reduce bandwidth used for network
transfers.  This is not enabled for file:// repositories by
default because of the increased CPU usage and I/O needed.

GIT_SVN_DELTA_FETCH may be set to a true value to enable or
false (0) to disable delta transfers regardless of the
repository type.
Signed-off-by: NEric Wong <normalperson@yhbt.net>
Signed-off-by: NJunio C Hamano <junkio@cox.net>

We used to try loose objects first with sha1_object_info(), but packed
objects first with read_sha1_file(). Now, prefer packed objects over loose
ones with sha1_object_info(), too.

Usually the old behaviour would pose no problem, but when you tried to fix
a fscked up repository by inserting a known-good pack,

	git cat-file $(git cat-file -t <sha1>) <sha1>

could fail, even when

	git cat-file blob <sha1>

would _not_ fail. Worse, a repack would fail, too.
Signed-off-by: NJohannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: NJunio C Hamano <junkio@cox.net>

On request of the kingpenguin, shortlog now uses the pager if output
goes to a tty.
Signed-off-by: NJohannes Schindelin <Johannes.Schindelin@gmx.de>
Signed-off-by: NJunio C Hamano <junkio@cox.net>

This should not change any functionality, but just makes it readable by
having a space between syntactic construct keyword and open parenthesis
(e.g. "if (expr", not "if(expr") and between close parenthesis and open
brace (e.g. "if (expr) {" not "if (expr){").
Signed-off-by: NJunio C Hamano <junkio@cox.net>

This allows users to use HTTP proxy information (among other settings)
from ~/.subversion/servers and ~/.subversion/config

--config-dir (as before) may be passed to git-svn to override the
default choice of '~/.subversion' for the configuration directory.

Thanks to tko on #git for pointing this out.
Signed-off-by: NEric Wong <normalperson@yhbt.net>
Signed-off-by: NJunio C Hamano <junkio@cox.net>

Signed-off-by: NShawn O. Pearce <spearce@spearce.org>
Signed-off-by: NJunio C Hamano <junkio@cox.net>

Since the user's git installation is not likely to grow a new command
or merge strategy in the lifespan of the current shell process we can
save time during completion operations by caching these lists during
sourcing of the completion support.

If the git executable is not available or we run into errors while
caching at load time then we defer these to runtime and generate
the list on the fly.  This might happen if the user doesn't put git
into their PATH until after the completion script gets sourced.
Signed-off-by: NShawn O. Pearce <spearce@spearce.org>
Signed-off-by: NJunio C Hamano <junkio@cox.net>

Because git-merge and git-rebase both accept -s, --strategy or --strategy=
we should recognize all three formats in the bash completion functions and
issue back all merge strategies on demand.

I also moved the prior word testing to be before the current word testing,
as the current word cannot be completed with -- if the prior word was an
option which requires a parameter, such as -s or --strategy.
Signed-off-by: NShawn O. Pearce <spearce@spearce.org>
Signed-off-by: NJunio C Hamano <junkio@cox.net>