We need to rewrite the index file when we check out files, even if we
haven't modified the blob info by reading from another tree, so that
we get the stat cache to include the fact that we just modified the
file so it doesn't need to be refreshed.

While we're at it, move everything that needs to be done to check out
some paths from a tree (or the current index) into checkout_paths().
Signed-off-by: NDaniel Barkalow <barkalow@iabervon.org>
Signed-off-by: NJunio C Hamano <gitster@pobox.com>

These flags are already known to rev-parse and have the same meaning.

This patch allows to run gitk as follows:

	gitk --branches --not --remotes

to show only your local work.
Signed-off-by: NUwe Kleine-König <Uwe.Kleine-Koenig@digi.com>
Signed-off-by: NJunio C Hamano <gitster@pobox.com>

t6029 already checks if subtree available and works like recursive. This
patch adds code to test test the extra functionality the subtree merge
strategy provides.
Signed-off-by: NMiklos Vajna <vmiklos@frugalware.org>
Signed-off-by: NJunio C Hamano <gitster@pobox.com>

Signed-off-by: NDaniel Barkalow <barkalow@iabervon.org>
Signed-off-by: NJunio C Hamano <gitster@pobox.com>

We always report to the user the list of refs we got from the first
connection, even if we do multiple connections. But we should always
use each connection's own list of refs in the communication with the
server, in case we got a different server out of DNS rotation or the
timing was surprising or something.
Signed-off-by: NDaniel Barkalow <barkalow@iabervon.org>
Signed-off-by: NJunio C Hamano <gitster@pobox.com>

When we expect a git command to notice and signal errors, we
carelessly wrote in our tests:

    test_expect_success 'reject bogus request' '
        do something &&
        do something else &&
        ! git command
    '

but a non-zero exit could come from the "git command" segfaulting.

A new helper function "tset_must_fail" is introduced and it is
meant to be used to make sure the command gracefully fails (iow,
dying and exiting with non zero status is counted as a failure
to "gracefully fail").  The above example should be written as:

    test_expect_success 'reject bogus request' '
        do something &&
        do something else &&
        test_must_fail git command
    '
Signed-off-by: NJunio C Hamano <gitster@pobox.com>

Signed-off-by: NAlex Riesen <raa.lkml@gmail.com>
Signed-off-by: NJunio C Hamano <gitster@pobox.com>

* maint:
  templates/Makefile: don't depend on local umask setting
  Correct name of diff_flush() in API documentation
  Start preparing for 1.5.4.4

Conflicts:

	RelNotes

Don't take the local umask setting into account when installing the
templates/* files and directories, running 'make install' with umask set
to 077 resulted in template/* installed with permissions 700 and 600.

The problem was discovered by Florian Zumbiehl, reported through
 http://bugs.debian.org/467518Signed-off-by: NGerrit Pape <pape@smarden.org>
Signed-off-by: NJunio C Hamano <gitster@pobox.com>

Signed-off-by: NDaniel Barkalow <barkalow@iabervon.org>
Signed-off-by: NJunio C Hamano <gitster@pobox.com>

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

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

Signed-off-by: NJohannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: NJunio C Hamano <gitster@pobox.com>

* maint:
  Eliminate confusing "won't bisect on seeked tree" failure
  builtin-reflog.c: don't install new reflog on write failure
  send-email: fix In-Reply-To regression
  Fix 'git cvsexportcommit -w $cvsdir ...' when used with relative $GIT_DIR
  Add testcase for 'git cvsexportcommit -w $cvsdir ...' with relative $GIT_DIR
  Prompt to continue when editing during rebase --interactive
  Documentation/git svn log: add a note about timezones.
  Don't use GIT_CONFIG in t5505-remote

Conflicts:

	t/t9001-send-email.sh
	t/t9200-git-cvsexportcommit.sh

* 'git-p4' of git://repo.or.cz/git/git-p4:
  git-p4: Support usage of perforce client spec
  git-p4: git-p4 submit cleanups.
  git-p4: Removed git-p4 submit --direct.
  git-p4: Clean up git-p4 submit's log message handling.
  git-p4: Remove --log-substitutions feature.
  git-p4: support exclude paths

This error message is very confusing---it doesn't tell the user
anything about how to fix the situation. And the actual fix
for the situation ("git bisect reset") does a checkout of a
potentially random branch, (compared to what the user wants to
be on for the bisect she is starting).

The simplest way to eliminate the confusion is to just make
"git bisect start" do the cleanup itself. There's no significant
loss of safety here since we already have a general safety in
the form of the reflog.

Note: We preserve the warning for any cogito users. We do this
by switching from .git/head-name to .git/BISECT_START for the
extra state, (which is a more descriptive name anyway).
Signed-off-by: NCarl Worth <cworth@cworth.org>
Signed-off-by: NJunio C Hamano <gitster@pobox.com>

When expiring reflog entries, a new temporary log is written which contains
only the entries to retain. After it is written, it is renamed to replace
the existing reflog. Currently, we check that writing of the new log is
successful and print a message on failure, but the original reflog is still
replaced with the new reflog even on failure. This patch causes the
original reflog to be retained if we fail when writing the new reflog.
Signed-off-by: NBrandon Casey <casey@nrlssc.navy.mil>
Signed-off-by: NJunio C Hamano <gitster@pobox.com>

Fix a regression introduced by

1ca3d6ed (send-email: squelch warning due to comparing undefined $_ to "")

where if the user was prompted for an initial In-Reply-To and didn't
provide one, messages would be sent out with an invalid In-Reply-To of
"<>"

Also add test cases for the regression and the fix. A small modification
was needed to allow send-email to take its replies from stdin if the
environment variable GIT_SEND_EMAIL_NOTTY is set.
Signed-off-by: NJay Soffian <jaysoffian@gmail.com>
Signed-off-by: NJunio C Hamano <gitster@pobox.com>

Acked-by: NEric Wong <normalperson@yhbt.net>
Signed-off-by: NJunio C Hamano <gitster@pobox.com>

Signed-off-by: NAlexandre Julliard <julliard@winehq.org>
Tested-by: NKarl Hasselström <kha@treskal.com>
Signed-off-by: NJunio C Hamano <gitster@pobox.com>

* jm/free:
  Avoid unnecessary "if-before-free" tests.

Conflicts:

	builtin-branch.c

* js/branch-track:
  doc: documentation update for the branch track changes
  branch: optionally setup branch.*.merge from upstream local branches

Conflicts:

	Documentation/config.txt
	Documentation/git-branch.txt
	Documentation/git-checkout.txt
	builtin-branch.c
	cache.h
	t/t7201-co.sh

* db/checkout: (21 commits)
  checkout: error out when index is unmerged even with -m
  checkout: show progress when checkout takes long time while switching branches
  Add merge-subtree back
  checkout: updates to tracking report
  builtin-checkout.c: Remove unused prefix arguments in switch_branches path
  checkout: work from a subdirectory
  checkout: tone down the "forked status" diagnostic messages
  Clean up reporting differences on branch switch
  builtin-checkout.c: fix possible usage segfault
  checkout: notice when the switched branch is behind or forked
  Build in checkout
  Move code to clean up after a branch change to branch.c
  Library function to check for unmerged index entries
  Use diff -u instead of diff in t7201
  Move create_branch into a library file
  Build-in merge-recursive
  Add "skip_unmerged" option to unpack_trees.
  Discard "deleted" cache entries after using them to update the working tree
  Send unpack-trees debugging output to stderr
  Add flag to make unpack_trees() not print errors.
  ...

Conflicts:

	Makefile

* db/cover-letter:
  Improve collection of information for format-patch --cover-letter
  Add API access to shortlog
  t4014: Replace sed's non-standard 'Q' by standard 'q'
  Support a --cc=<email> option in format-patch
  Combine To: and Cc: headers
  Fix format.headers not ending with a newline
  Add tests for extra headers in format-patch
  Add a --cover-letter option to format-patch
  Export some email and pretty-printing functions
  Improve message-id generation flow control for format-patch
  Add more tests for format-patch

Conflicts:

	builtin-log.c
	builtin-shortlog.c
	pretty.c

* js/merge:
  xdl_merge(): introduce XDL_MERGE_ZEALOUS_ALNUM
  xdl_merge(): make XDL_MERGE_ZEALOUS output simpler

* cw/bisect:
  Eliminate confusing "won't bisect on seeked tree" failure

* jk/help-alias:
  help: respect aliases
  make alias lookup a public, procedural function
  help: use parseopt

* js/run-command:
  start_command(), if .in/.out > 0, closes file descriptors, not the callers
  start_command(), .in/.out/.err = -1: Callers must close the file descriptor

* jc/diff-relative:
  diff --relative: help working in a bare repository
  diff --relative: output paths as relative to the current subdirectory

* gp/hash-stdin:
  hash-object: cleanup handling of command line options

* db/push-single-with-HEAD:
  Resolve value supplied for no-colon push refspecs

* db/host-alias:
  url rewriting: take longest and first match
  Add support for url aliases in config files
  Use ALLOC_GROW in remote.{c,h}

* ae/pack-autothread:
  Revert "pack-objects: Print a message describing the number of threads for packing"
  pack-objects: Print a message describing the number of threads for packing
  pack-objects: Add runtime detection of online CPU's

* bc/reflog-fix:
  builtin-reflog.c: don't install new reflog on write failure

* sp/describe:
  Use git-describe --exact-match in bash prompt on detached HEAD
  Teach git-describe --exact-match to avoid expensive tag searches
  Avoid accessing non-tag refs in git-describe unless --all is requested
  Teach git-describe to use peeled ref information when scanning tags
  Optimize peel_ref for the current ref of a for_each_ref callback

When using the '-w $cvsdir' option to cvsexportcommit, it will chdir into
$cvsdir before executing several other git commands. If $GIT_DIR is set to
a relative path (e.g. '.'), the git commands executed by cvsexportcommit
will naturally fail.

Therefore, ensure that $GIT_DIR is absolute before the chdir to $cvsdir.
Signed-off-by: NJohan Herland <johan@herland.net>
Signed-off-by: NJunio C Hamano <gitster@pobox.com>

The testcase verifies that 'git cvsexportcommit' functions correctly when
the '-w' option is used, and GIT_DIR is set to a relative path (e.g. '.').
Signed-off-by: NJohan Herland <johan@herland.net>
Signed-off-by: NJunio C Hamano <gitster@pobox.com>

On hitting an edit point in an interactive rebase, git should prompt
the user to run "git rebase --continue"
Signed-off-by: NJonathan del Strother <jon.delStrother@bestbefore.tv>
Signed-off-by: NJunio C Hamano <gitster@pobox.com>

git svn log mimics the timezone converting behaviour of svn log, but
this was undocumented.
Signed-off-by: NMiklos Vajna <vmiklos@frugalware.org>
Signed-off-by: NJunio C Hamano <gitster@pobox.com>

* js/maint-http-push:
  http-push: avoid a needless goto
  http-push: do not get confused by submodules
  http-push: avoid invalid memory accesses