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037a98cd3f
In order to maintain consistency of the database mapping svn revision numbers to git commit ids, rev_map_set() defers signal processing until it's finished with an append transaction.[*] The conventional way to achieve this is through sigprocmask(), which is available in perl in the standard POSIX module. This is implemented by this patch. One important consequence of it is that the signal handlers won't be unconditionally set to SIG_DFL anymore upon the first invocation of rev_map_set() as they used to. As a result, the signals ignored by git-svn parent will remain ignored; otherwise the behavior remains the same. This patch paves the way to ignoring SIGPIPE throughout git-svn which will be done in the followup patch. [*] Deferring signals is not enough to ensure the database consistency: the program may die on SIGKILL or power loss, run out of disk space, etc. However that's a separate issue that this patch doesn't address. Signed-off-by: Roman Kagan <rkagan@mail.ru> Acked-by: Eric Wong <normalperson@yhbt.net>
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GIT - the stupid content tracker
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"git" can mean anything, depending on your mood.
- random three-letter combination that is pronounceable, and not
actually used by any common UNIX command. The fact that it is a
mispronunciation of "get" may or may not be relevant.
- stupid. contemptible and despicable. simple. Take your pick from the
dictionary of slang.
- "global information tracker": you're in a good mood, and it actually
works for you. Angels sing, and a light suddenly fills the room.
- "goddamn idiotic truckload of sh*t": when it breaks
Git is a fast, scalable, distributed revision control system with an
unusually rich command set that provides both high-level operations
and full access to internals.
Git is an Open Source project covered by the GNU General Public License.
It was originally written by Linus Torvalds with help of a group of
hackers around the net. It is currently maintained by Junio C Hamano.
Please read the file INSTALL for installation instructions.
See Documentation/gittutorial.txt to get started, then see
Documentation/everyday.txt for a useful minimum set of commands, and
Documentation/git-commandname.txt for documentation of each command.
If git has been correctly installed, then the tutorial can also be
read with "man gittutorial" or "git help tutorial", and the
documentation of each command with "man git-commandname" or "git help
commandname".
CVS users may also want to read Documentation/gitcvs-migration.txt
("man gitcvs-migration" or "git help cvs-migration" if git is
installed).
Many Git online resources are accessible from http://git-scm.com/
including full documentation and Git related tools.
The user discussion and development of Git take place on the Git
mailing list -- everyone is welcome to post bug reports, feature
requests, comments and patches to git@vger.kernel.org (read
Documentation/SubmittingPatches for instructions on patch submission).
To subscribe to the list, send an email with just "subscribe git" in
the body to majordomo@vger.kernel.org. The mailing list archives are
available at http://marc.theaimsgroup.com/?l=git and other archival
sites.
The messages titled "A note from the maintainer", "What's in
git.git (stable)" and "What's cooking in git.git (topics)" and
the discussion following them on the mailing list give a good
reference for project status, development direction and
remaining tasks.