Fix bugs in git-rebase wrt rebasing another branch than
the current HEAD, rebasing with a dirty working dir,
and rebasing a proper decendant of the target branch.

[jc: with a bit of hand-merging]
Signed-off-by: NLukas Sandström <lukass@etek.chalmers.se>
Signed-off-by: NJunio C Hamano <junkio@cox.net>

An isolated developer could have a local-only e-mail, which will
be stripped out by mailinfo because it lacks '@'.  Define a
fallback parser to accomodate that.

At the same time, reject authorless patch in git-am.
Signed-off-by: NJunio C Hamano <junkio@cox.net>

[jc: Martin says syllable (www.syllable.org) wants this.]
Signed-off-by: NJunio C Hamano <junkio@cox.net>

[jc: originally from Amos Waterland.]
Signed-off-by: NJunio C Hamano <junkio@cox.net>

When switching to another branch and rebasing it in a one-go, it
failed to update the variable that holds the branch head, and
did not detect fast-forward situation correctly.
Signed-off-by: NJunio C Hamano <junkio@cox.net>

Recommend git over ssh direct to master.kernel.org, instead of
going over rsync to public machines, since this is meant to be a
procedure for kernel subsystem maintainers.

Also fix an obvious typo.
Signed-off-by: NJunio C Hamano <junkio@cox.net>

... when old, proven, case would do.
Signed-off-by: NJunio C Hamano <junkio@cox.net>

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

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

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

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

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

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

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

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

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

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

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

Signed-off-by: NJunio C Hamano <junkio@cox.net>

There were some problems with the usage message clean-up patch
series. I hadn't realised that subdirectory aware scripts can't source
git-sh-setup. I propose that we change this and let the scripts which
are subdirectory aware set a variable, SUBDIRECTORY_OK, before they
source git-sh-setup.

The scripts will also set USAGE and possibly LONG_USAGE before they
source git-sh-setup. If LONG_USAGE isn't set it defaults to USAGE.

If we go this way it's easy to catch --help in git-sh-setup, print the
(long) usage message to stdout and exit cleanly. git-sh-setup can
define a 'usage' shell function which can be called by the scripts to
print the short usage string to stderr and exit non-cleanly. It will
also be easy to change $0 to basename $0 or something else, if would
like to do that sometime in the future.

What follows is a patch to convert a couple of the commands to this
style. If it's ok with everyone to do it this way I will convert the
rest of the scripts too.

[jc: thrown in to proposed updates queue for comments.]
Signed-off-by: NJunio C Hamano <junkio@cox.net>

This allows git-am to accept single-message files as well as mboxes.
Unlike the previous version, this one doesn't need to be explicitly told
which one it is; rather, it looks to see if the first line is a From
line and uses it to select mbox mode or not.

I moved the logic to do all this into git-mailsplit, which got a new
user interface as result, although the old interface is still available
for backwards compatibility.

[jc: applied with two obvious fixes.]
Signed-off-by: NH. Peter Anvin <hpa@zytor.com>
Signed-off-by: NJunio C Hamano <junkio@cox.net>

Talk about the following as well:

 * git fetch --tags
 * Use of "git push" as a one-man distributed development vehicle.
 * Show example of remotes file for pulling and pushing.
 * Annotate git-shell setup.
 * Using Carl's update hook in a CVS-style shared repository.
Signed-off-by: NJunio C Hamano <junkio@cox.net>

3bd348ae commit broke checking
out specific paths.
Signed-off-by: NJunio C Hamano <junkio@cox.net>

In case some refs couldn't be pushed out due to an error (mostly the
not-a-proper-subset error), make git-send-pack exit with non-zero status
after the push is over (that is, it still tries to push out the rest
of the refs).

[jc: I adjusted a test for this change.]
Signed-off-by: NPetr Baudis <pasky@suse.cz>
Signed-off-by: NJunio C Hamano <junkio@cox.net>

Although "git-merge" is advertised as the end-user level command
(instead of being a "git-pull" backend), it was not prepared to
take tag objects that point at commits and barfed when fed one.
Sanitize the input while we validate them, for which we already
have a loop.
Signed-off-by: NJunio C Hamano <junkio@cox.net>

When clone-pack has trouble with the remote, it dies unfriendly
"EOF" error message.  We cannot tell the reason why it failed
from the local end; it could be that the repository did not
exist, or configured not to serve over git-daemon, or a network
failure.  At least, saying clone-pack failed makes it a bit more
meaningful.

I am not convinced yet that removing the newly created directory
is the right thing to do, so this commit leaves the new
directory behind.

Reported by Sam Ravnborg.
Signed-off-by: NJunio C Hamano <junkio@cox.net>

The initial section of tutorial was too heavy on internal
workings for the first-time readers, so rewrite the introductory
section of git(7) to start with "not learning core git commands"
section and refer them to README to grasp the basic concepts,
then Everyday to give overview with task/role oriented examples
for minimum set of commands, and finally the tutorial.

Also add to existing note in the tutorial that many too
technical descriptions can be skipped by a casual reader.

I initially started to review the tutorial, with the objective
of ripping out the detailed technical information altogether,
but I found that the level of details in the initial couple of
sections that talk about refs and the object database in a
hands-on fashion was about rigth, and left all of them there.  I
feel that reading about fsck-index and repack is too abstract
without being aware of these directories and files.
Signed-off-by: NJunio C Hamano <junkio@cox.net>

Signed-off-by: NJunio C Hamano <junkio@cox.net>

Also move pack protocol description to technical/.
Signed-off-by: NJunio C Hamano <junkio@cox.net>

Signed-off-by: NJunio C Hamano <junkio@cox.net>

Signed-off-by: NJunio C Hamano <junkio@cox.net>

Somehow we checked only one side and not the other.  By checking
the filesize upfront, we can bypass generating delta
unnecessarily.
Signed-off-by: NJunio C Hamano <junkio@cox.net>

This reverts e726715a commit,
because reverting diff-delta emptiness change would break this test.

This reverts 962537a3 commit to
play safe.

Signed-off-by: NJunio C Hamano <junkio@cox.net>

Delta computation with an empty blob used to punt and returned NULL.
This commit allows creation with empty blob; all combination of
empty->empty, empty->something, and something->empty are allowed.
Signed-off-by: NJunio C Hamano <junkio@cox.net>

This test kicks in only if you built test-delta executable, and
makes sure that the basic delta routine is working properly even
on empty files.

This commit is to make sure we have a test to catch the
breakage.  The delitifier code is still broken, which will be
fixed with the next commit.
Signed-off-by: NJunio C Hamano <junkio@cox.net>

This bug caused Darrin Thompson to notice that our deltifier was
half broken and punting on an empty blob.
Signed-off-by: NJunio C Hamano <junio@twinsun.com>