status: show the branch name if possible in in-progress info

The typical use-case is starting a rebase, do something else, come
back the day after, run "git status" or make a new commit and wonder
what in the world's going on. Which branch is being rebased is
probably the most useful tidbit to help, but the target may help
too.

Ideally, I would have loved to see "rebasing master on
origin/master", but the target ref name is not stored during rebase,
so this patch writes "rebasing master on a78c8c98b" as a
half-measure to remind future users of that potential improvement.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Use __VA_ARGS__ for all of error's arguments

QNX 6.3.2 uses GCC 2.95.3 by default, and GCC 2.95.3 doesn't remove the
comma if the error macro's variable argument is left out.

Instead of testing for a sufficiently recent version of GCC, make
__VA_ARGS__ match all of the arguments.

Signed-off-by: Matt Kraai <matt.kraai@amo.abbott.com>
Acked-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Makefile: make script-related rules usable from subdirectories

Git's Makefile provides a few nice features for script build and
installation (substitute the first line with the right path, hardcode the
path to Git library, ...).

The Makefile already knows how to process files outside the toplevel
directory with e.g.

  make SCRIPT_PERL=path/to/file.perl path/to/file

but we can make it simpler for callers by exposing build, install and
clean rules as .PHONY targets.

Signed-off-by: Matthieu Moy <Matthieu.Moy@imag.fr>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
git-remote-mediawiki: use toplevel's Makefile

This makes the Makefile simpler, while providing more features, and more
consistency (the exact same rules with the exact same configuration as
Git official commands are applied with the new version).

Signed-off-by: Matthieu Moy <Matthieu.Moy@imag.fr>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
git-mergetool: print filename when it contains %

If git-mergetool was invoked with files with a percent sign (%) in
their names, it would print an error.  For example, if you were
calling mergetool on a file called "%2F":

    printf: %2F: invalid directive

Do not pass random string to printf as if it were a valid format.
Use format string "%s" and pass the string as data to be formatted
instead.

Signed-off-by: Asheesh Laroia <asheesh@asheesh.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Move Git::SVN::get_tz to Git::get_tz_offset

This function has utility outside of the SVN module for any routine
that needs the equivalent of GNU strftime's %z formatting option.
Move it to the top-level Git.pm so that non-SVN modules don't need to
import the SVN module to use it.

The rename makes the purpose of the function clearer.

Signed-off-by: Ben Walton <bdwalton@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
perl/Git.pm: fix get_tz_offset to properly handle DST boundary cases

When passed a local time that was on the boundary of a DST change,
get_tz_offset returned a GMT offset that was incorrect (off by one
hour).  This is because the time was converted to GMT and then back to
a time stamp via timelocal() which cannot disambiguate boundary cases
as noted in its documentation.

Modify this algorithm, using an approach suggested in

  http://article.gmane.org/gmane.comp.version-control.git/213871

to first convert the timestamp in question to two broken down forms
with localtime() and gmtime(), and then compute what timestamps
these two broken down forms would represent in GMT (i.e. a timezone
that does not have DST issues) by applying timegm() on them.  The
difference between the resulting timestamps is the timezone offset.

This avoids the ambigious conversion and allows a correct time to be
returned on every occassion.

Signed-off-by: Ben Walton <bdwalton@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
cvsimport: format commit timestamp ourselves without using strftime

Some implementations of strftime(3) lack support for "%z".  Also
there is no need for %s in git-cvsimport as the supplied time is
already in seconds since the epoch.

For %z, use the function get_tz_offset provided by Git.pm instead.

Signed-off-by: Ben Walton <bdwalton@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
difftool--helper: fix printf usage

Do not use a random string as if it is a format string for printf
when showing it literally; instead feed it to '%s' format.

Reported-by: Asheesh Laroia <asheesh@asheesh.org>
Signed-off-by: David Aguilar <davvid@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
git-bisect.txt: clarify that reset quits bisect

"reset" can be easily misunderstood as resetting a bisect session to its
start without finishing it. Clarify that it actually quits the bisect
session.

Reported-by: Andreas Mohr <andi@lisas.de>
Signed-off-by: Michael J Gruber <git@drmicha.warpmail.net>
Reviewed-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Add utf8_fprintf helper that returns correct number of columns

Since command usages can be translated, they may include utf-8
encoded strings, and the output in console may not align well any
more. This is because strlen() is different from strwidth() on utf-8
strings.

A wrapper utf8_fprintf() can help to return the correct number of
columns required.

Signed-off-by: Jiang Xin <worldhello.net@gmail.com>
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Reviewed-by: Torsten Bögershausen <tboegi@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Merge branch 'mg/bisect-doc' into next

* mg/bisect-doc:
  git-bisect.txt: clarify that reset quits bisect
Merge branch 'jx/utf8-printf-width' into next

Use a new helper that prints a message and counts its display width
to align the help messages parse-options produces.

* jx/utf8-printf-width:
  Add utf8_fprintf helper that returns correct number of columns
Merge branch 'jk/error-const-return' into next

* jk/error-const-return:
  Use __VA_ARGS__ for all of error's arguments
Merge branch 'al/mergetool-printf-fix' into next

* al/mergetool-printf-fix:
  difftool--helper: fix printf usage
  git-mergetool: print filename when it contains %
Merge branch 'bw/get-tz-offset-perl' into next

* bw/get-tz-offset-perl:
  cvsimport: format commit timestamp ourselves without using strftime
  perl/Git.pm: fix get_tz_offset to properly handle DST boundary cases
  Move Git::SVN::get_tz to Git::get_tz_offset
Merge branch 'mm/remote-mediawiki-build' into next

* mm/remote-mediawiki-build:
  git-remote-mediawiki: use toplevel's Makefile
  Makefile: make script-related rules usable from subdirectories
Merge branch 'nd/status-show-in-progress' into next

* nd/status-show-in-progress:
  status: show the branch name if possible in in-progress info