Of course, it still ignores the fact that not all grep's support some of
the flags like -F/-L/-A/-C etc, but for those cases, the external grep
itself will happily just say "unrecognized option -F" or similar.

So with this change, "git grep" should handle all the flags the native
grep handles, which is really quite fine. We don't _need_ to expose
anything more, and if you do want our extensions, you can get them with
"--uncached" and an up-to-date index.

No configuration necessary, and we automatically take advantage of any
native grep we have, if possible.
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
Signed-off-by: NJunio C Hamano <junkio@cox.net>

* ew/pretty-fmt:
  commit: allow --pretty= args to be abbreviated

* jc/apply:
  git-am: use apply --cached
  apply --cached: apply a patch without using working tree.
  apply --numstat: show new name, not old name.

Signed-off-by: NEric Wong <normalperson@yhbt.net>
Signed-off-by: NJunio C Hamano <junkio@cox.net>

It's built-in now.
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
Signed-off-by: NJunio C Hamano <junkio@cox.net>

* maint:
  merge-base: Clarify the comments on post processing.
  Update the documentation for git-merge-base

* np/pack:
  improve depth heuristic for maximum delta size
  pack-object: slightly more efficient
  simple euristic for further free packing improvements

The comment fooled myself believing that we still had an
unsolved horizon effect.
Signed-off-by: NJunio C Hamano <junkio@cox.net>

This provides a linear decrement on the penalty related to delta depth
instead of being an 1/x function.  With this another 5% reduction is
observed on packs for both the GIT repo and the Linux kernel repo, as
well as fixing a pack size regression in another sample repo I have.
Signed-off-by: NNicolas Pitre <nico@cam.org>
Signed-off-by: NJunio C Hamano <junkio@cox.net>

* se/tag:
  Strip useless "tags/" prefix from git-tag -l output

* se/rev-parse:
  Add "--branches", "--tags" and "--remotes" options to git-rev-parse.

* se/diff:
  Convert some "apply --summary" users to "diff --summary".
  Add "--summary" option to git diff.

* se/rebase:
  Make git rebase interactive help match documentation.

Signed-off-by: NFredrik Kuivinen <freku045@student.liu.se>
Signed-off-by: NJunio C Hamano <junkio@cox.net>

The code forgot that setup_revisions() leaves parsed object
names in reverse in the list.
Signed-off-by: NJunio C Hamano <junkio@cox.net>

* lt/oneway:
  read-tree --reset -u fix.
  read-tree -u one-way merge fix to check out locally modified paths.
  Simplify "git reset --hard"
  Allow one-way tree merge to remove old files

* ew/send-email:
  send-email: quiet some warnings, reject invalid addresses
  send-email: allow sendmail binary to be used instead of SMTP

* lt/config:

* jc/grep: (22 commits)
  Fix silly typo in new builtin grep
  builtin-grep: unparse more command line options.
  builtin-grep: use external grep when we can take advantage of it
  builtin-grep: -F (--fixed-strings)
  builtin-grep: -w fix
  builtin-grep: typofix
  builtin-grep: tighten argument parsing.
  builtin-grep: documentation
  Teach -f <file> option to builtin-grep.
  builtin-grep: -L (--files-without-match).
  builtin-grep: binary files -a and -I
  builtin-grep: terminate correctly at EOF
  builtin-grep: tighten path wildcard vs tree traversal.
  builtin-grep: support -w (--word-regexp).
  builtin-grep: support -c (--count).
  builtin-grep: allow more than one patterns.
  builtin-grep: allow -<n> and -[ABC]<n> notation for context lines.
  builtin-grep: printf %.*s length is int, not ptrdiff_t.
  builtin-grep: do not use setup_revisions()
  builtin-grep: support '-l' option.
  ...

* lt/diff:
  git diff: support "-U" and "--unified" options properly

The "-F" flag apparently got mis-translated due to some over-eager
copy-paste work into a duplicate "-H" when using the external grep.
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
Signed-off-by: NJunio C Hamano <junkio@cox.net>

Now 'git apply' can apply patch without working tree, preparation
of pristine preimage and postimage trees that are done when falling
back on 3-way merge by "git am" can do so without temporary files.
Signed-off-by: NJunio C Hamano <junkio@cox.net>

A new flag "--cached" takes the cached data, applies the patch
and stores the result in the index, without using the working
tree.
Signed-off-by: NJunio C Hamano <junkio@cox.net>

* fix:
  Fix pack-index issue on 64-bit platforms a bit more portably.
  Install git-send-email by default
  Fix compilation on newer NetBSD systems
  git config syntax updates
  Another config file parsing fix.
  checkout: use --aggressive when running a 3-way merge (-m).

The earlier one to use external grep missed some often used options.
Signed-off-by: NJunio C Hamano <junkio@cox.net>

Apparently <stdint.h> is not enough for uint32_t on OpenBSD; use
"unsigned int" -- hopefully that would stay 32-bit on every
platform we care about, at least until we update the pack-index
file format.

Our sha1 routines optimized for architectures use uint32_t and
expects '#include <stdint.h>' to be enough, so OpenBSD on arm or
ppc might have similar issues down the road, I dunno.
Signed-off-by: NJunio C Hamano <junkio@cox.net>

After 567ffeb7 and
4bc87a28, git-send-email no
longer requires any non-standard Perl modules, so there's no
reason to special-case it.
Signed-off-by: NEric Wong <normalperson@yhbt.net>
Signed-off-by: NJunio C Hamano <junkio@cox.net>

NetBSD >=2.0 has iconv() in libc.  A libiconv is not required and
does not exist.

See: http://netbsd.gw.com/cgi-bin/man-cgi?iconv+3+NetBSD-2.0

[jc: with a bit of simplification later discussed on the list.]
Signed-off-by: NDennis Stosberg <dennis@stosberg.net>
Signed-off-by: NJunio C Hamano <junkio@cox.net>

Avoid creating a delta index for objects with maximum depth since they
are not going to be used as delta base anyway.  This also reduce peak
memory usage slightly as the current object's delta index is not useful
until the next object in the loop is considered for deltification. This
saves a bit more than 1% on CPU usage.
Signed-off-by: NNicolas Pitre <nico@cam.org>
Signed-off-by: NJunio C Hamano <junkio@cox.net>

Given that the early eviction of objects with maximum delta depth
may exhibit bad packing on its own, why not considering a bias against
deep base objects in try_delta() to mitigate that bad behavior.

This patch adjust the MAX_size allowed for a delta based on the depth of
the base object as well as enabling the early eviction of max depth
objects from the object window.  When used separately, those two things
produce slightly better and much worse results respectively.  But their
combined effect is a surprising significant packing improvement.

With this really simple patch the GIT repo gets nearly 15% smaller, and
the Linux kernel repo about 5% smaller, with no significantly measurable
CPU usage difference.
Signed-off-by: NNicolas Pitre <nico@cam.org>
Signed-off-by: NJunio C Hamano <junkio@cox.net>

The previous commit makes -u to mean "I do want to remove the
local changes, just update it from the read tree" only for
one-way merge.  It makes sense to have it depend on the
"--reset" flag instead.
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
Signed-off-by: NJunio C Hamano <junkio@cox.net>

I'm not sure why we never actually rejected invalid addresses in
the first place.  We just seemed to be using our email validity
checkers to kill duplicates.

Now we just drop invalid email addresses completely and warn
the user about it.

Since we support local sendmail, we'll also accept username-only
addresses.
Signed-off-by: NEric Wong <normalperson@yhbt.net>
Signed-off-by: NJunio C Hamano <junkio@cox.net>

This should make local mailing possible for machines without
a connection to an SMTP server.

It'll default to using /usr/sbin/sendmail or /usr/lib/sendmail
if no SMTP server is specified (the default).  If it can't find
either of those paths, it'll fall back to connecting to an SMTP
server on localhost.
Signed-off-by: NEric Wong <normalperson@yhbt.net>
Signed-off-by: NJunio C Hamano <junkio@cox.net>

Somehow --stat showed the new name but --numstat showed the old
name for renamed/copied paths.
Signed-off-by: NJunio C Hamano <junkio@cox.net>

* fix:
  Ensure author & committer before asking for commit message.

* fix:
  Ensure author & committer before asking for commit message.

The "-u" flag means "update the working tree files", but to
other types of merges, it also implies "I want to keep my local
changes" -- because they prevent local changes from getting lost
by using verify_uptodate.  The one-way merge is different from
other merges in that its purpose is opposite of doing something
else while keeping unrelated local changes.  The point of
one-way merge is to nuke local changes.  So while it feels
somewhat wrong that this actively loses local changes, it is the
right thing to do.
Signed-off-by: NJunio C Hamano <junkio@cox.net>

After 567ffeb7 and
4bc87a28, git-send-email no
longer requires any non-standard Perl modules, so there's no
reason to special-case it.
Signed-off-by: NEric Wong <normalperson@yhbt.net>
Signed-off-by: NJunio C Hamano <junkio@cox.net>

mutt, gnus, pine, mailrc formats should be supported.

Testing and feedback for correctness and completeness of all formats
and support for additional formats would be good.

Nested expansions are also supported.

More than one alias file to be used.

All alias file formats must still of be the same type, though.

Two git repo-config keys are required for this
(as suggested by Ryan Anderson):

    sendemail.aliasesfile = <filename of aliases file>
    sendemail.aliasfiletype = (mutt|gnus|pine|mailrc)
Signed-off-by: NEric Wong <normalperson@yhbt.net>
Acked-by: NRyan Anderson <ryan@michonline.com>
Signed-off-by: NJunio C Hamano <junkio@cox.net>