Introduce fmt_name() specifically meant for formatting the name and
email pair, to add signed-off-by value.  This reverts parts of
13208572 (builtin-commit: fix --signoff)
so that an empty datestamp string given to fmt_ident() by mistake will
error out as before.
Signed-off-by: NJunio C Hamano <gitster@pobox.com>

These are three types of cleanups here:

  1. remove newline from die message (die/report adds it
     already)
  2. typo: s/merger/merge/
  3. the old "* no commit message?  aborting commit." is now
     prepended with "fatal: ", making the asterisk look a
     little funny. Let's just remove it.
Signed-off-by: NJeff King <peff@peff.net>
Signed-off-by: NJunio C Hamano <gitster@pobox.com>

Like when it is already specified through -C, -F or -m to git-commit.
Signed-off-by: NAlex Riesen <raa.lkml@gmail.com>
Signed-off-by: NJunio C Hamano <gitster@pobox.com>

Signed-off-by: NKristian Høgsberg <krh@redhat.com>
Signed-off-by: NJunio C Hamano <gitster@pobox.com>

The editor program to let the user edit the log message used to
get GIT_INDEX_FILE environment variable pointing at the right
file, but this was lost when git-commit was rewritten in C.
Signed-off-by: NPierre Habouzit <madcoder@debian.org>
Acked-by: NKristian Høgsberg <krh@redhat.com>
Signed-off-by: NJunio C Hamano <gitster@pobox.com>

run_diff_index() and the entire diff machinery is hard coded to output
to stdout, so just redirect that and restore it when done.
Signed-off-by: NKristian Høgsberg <krh@redhat.com>
Signed-off-by: NJunio C Hamano <gitster@pobox.com>

When making a partial-commit, we need to prepare two index
files, one to be used to write out the tree to be committed
(temporary index) and the other to be used as the index file
after the commit is made.

The temporary index needs to be initialized to HEAD and then all
the named paths on the command line need to be staged on top of
the index.  For this, running add_files_to_cache() that compares
what is in the index and the paths given from the command line
is not enough -- the comparison will miss the paths that the
user previously ran "git add" to the index since the HEAD
because the index reset to the HEAD would not know about them.
The index file needs to get the same modification done when
preparing the temporary index as described above.

This implementation mimics the behaviour of the scripted
version of git-commit.  It first runs overlay_tree_on_cache(),
which was stolen from ls-files with the earlier change, to get
the list of paths that the user can potentially mean, and then
uses pathspec_match() to find which ones the user meant.  This
list of paths is used to update both the temporary and the real
index file.

Additional fixes are:

 - read the index file after pre-commit hook returns, as the
   hook can modify it to affect the contents of the commit.

 - remove the temporary index file .git/next-index-* after
   commit is done or aborted.

 - run post-commit hook with the real index file to be used
   after the commit (previously it gave the temporary commit if
   a partial commit was made).

 - resurrect the safety mechanism to refuse partial commits
   during a merge to match the scripted version.
Signed-off-by: NJunio C Hamano <gitster@pobox.com>

It should run with $GIT_DIR/COMMIT_EDITMSG, not just COMMIT_EDITMSG.
Signed-off-by: NJunio C Hamano <gitster@pobox.com>

Noticed by Ping Yin on the list.
Signed-off-by: NJunio C Hamano <gitster@pobox.com>

Signed-off-by: NKristian Høgsberg <krh@redhat.com>
Signed-off-by: NJunio C Hamano <gitster@pobox.com>

We're guaranteeing the user that the index will be stat-clean after
git commit. Thus, we need to call refresh_cache() for the user index too,
in the 'git commit <paths>' case.
Signed-off-by: NKristian Høgsberg <krh@redhat.com>
Signed-off-by: NJunio C Hamano <gitster@pobox.com>

The function log_tree_commit() does not break the line, so we have to
do it ourselves.
Signed-off-by: NJohannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: NJunio C Hamano <gitster@pobox.com>

When more than one -m option is given, the message does not replace
the previous, but is appended as a new paragraph.
Signed-off-by: NJohannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: NJunio C Hamano <gitster@pobox.com>

The rule is this: if the last line already contains the sign off by the
current committer, do nothing.  If it contains another sign off, just
add the sign off of the current committer.  If the last line does not
contain a sign off, add a new line before adding the sign off.
Signed-off-by: NJohannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: NJunio C Hamano <gitster@pobox.com>

The Signed-off-by: line contained a spurious timestamp.  The reason was
a call to git_committer_info(1), which automatically added the
timestamp.

Instead, fmt_ident() was taught to interpret an empty string for the
date (as opposed to NULL, which still triggers the default behavior)
as "do not bother with the timestamp", and builtin-commit.c uses it.
Signed-off-by: NJohannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: NJunio C Hamano <gitster@pobox.com>

To show the relative paths, the function formerly called quote_crlf()
(now called quote_path()) takes the prefix as an additional argument.

While at it, the static buffers were replaced by strbufs.
Signed-off-by: NJohannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: NJunio C Hamano <gitster@pobox.com>

We have promised our users that after running git-status or
git-commit the index will be refreshed for a long time since
these commands were introduced.  Do refresh the index before
writing it out to keep the promise.
Signed-off-by: NKristian Høgsberg <krh@redhat.com>
Signed-off-by: NJunio C Hamano <gitster@pobox.com>

Instead of strdup()ing, we can just reuse the buffer in which the
commit message is stored, and which is supposed to hold the reflog
message anyway.
Signed-off-by: NJohannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: NJunio C Hamano <gitster@pobox.com>

This makes git commit a builtin and moves git-commit.sh to
contrib/examples.  This also removes the git-runstatus
helper, which was mostly just a git-status.sh implementation detail.
Signed-off-by: NKristian Høgsberg <krh@redhat.com>
Signed-off-by: NJunio C Hamano <gitster@pobox.com>