Staging
v0.5.1
v0.5.1
https://github.com/git/git
Revision 46774a81f9d6ca4d230d33757afe9dd07bfe398b authored by Junio C Hamano on 29 October 2005, 21:35:11 UTC, committed by Junio C Hamano on 29 October 2005, 21:35:11 UTC
Done in 0.99.9
==============
Ports
~~~~~
* Cygwin port [HPA].
* OpenBSD build [Merlyn and others].
Fixes
~~~~~
* clone request over git native protocol from a repository with
too many refs did not work; this has been fixed.
* git-daemon got safer for kernel.org use [HPA].
* Extended SHA1 parser was not enforcing uniqueness for
abbreviated SHA1; this has been fixed.
* http transport does not barf on funny characters in URL.
* The ref naming restrictions have been formalized and the
coreish refuses to create funny refs; we still need to audit
importers. See git-check-ref-format(1).
New Features and Commands
~~~~~~~~~~~~~~~~~~~~~~~~~
* .git/config file as a per-repository configuration mechanism,
and some commands understand it [Linus]. See
git(7).
* The core.filemode configuration item can be used to make us a
bit more FAT friendly. See git(7).
* The extended SHA1 notation acquired Peel-the-onion operator
^{type} and ^{}. See git-rev-parse(1).
* SVN importer [Matthias]. See git-svnimport(1).
* .git/objects/[0-9a-f]{2} directories are created on demand,
and removed when becomes empty after prune-packed [Linus].
* Filenames output from various commands without -z option are
quoted when they embed funny characters (TAB and LF) using
C-style quoting within double-quotes, to match the proposed
GNU diff/patch notation [me, but many people contributed in
the discussion].
* git-mv is expected to be a better replacement for git-rename.
While the latter has two parameter restriction, it acts more
like the regular 'mv' that can move multiple things to one
destinatino directory [Josef Weidendorfer].
* git-checkout can take filenames to revert the changes to
them. See git-checkout(1)
* The new program git-am is a replacement for git-applymbox that
has saner command line options and a bit easier to use when a
patch does not apply cleanly.
* git-ls-remote can show unwrapped onions using ^{} notation, to
help Cogito to track tags.
* git-merge-recursive backend can merge unrelated projects.
* git-clone over native transport leaves the result packed.
* git-http-fetch issues multiple requests in parallel when
underlying cURL library supports it [Nick and Daniel].
* git-fetch-pack and git-upload-pack try harder to figure out
better common commits [Johannes].
* git-read-tree -u removes a directory when it makes it empty.
* git-diff-* records abbreviated SHA1 names of original and
resulting blob; this sometimes helps to apply otherwise an
unapplicable patch by falling back to 3-way merge.
* git-format-patch now takes series of from..to rev ranges and
with '-m --stdout', writes them out to the standard output.
This can be piped to 'git-am' to implement cheaper
cherry-picking.
* git-tag takes '-u' to specify the tag signer identity [Linus].
* git-rev-list can take optional pathspecs to skip commits that
do not touch them (--dense) [Linus].
* Comes with new and improved gitk [Paulus and Linus].
Signed-off-by: Junio C Hamano <junkio@cox.net>
1 parent 5773c9f
Tip revision: 46774a81f9d6ca4d230d33757afe9dd07bfe398b authored by Junio C Hamano on 29 October 2005, 21:35:11 UTC
GIT 0.99.9
GIT 0.99.9
Tip revision: 46774a8
update-ref.c
#include "cache.h"
#include "refs.h"
static const char git_update_ref_usage[] = "git-update-ref <refname> <value> [<oldval>]";
static int re_verify(const char *path, unsigned char *oldsha1, unsigned char *currsha1)
{
char buf[40];
int fd = open(path, O_RDONLY), nr;
if (fd < 0)
return -1;
nr = read(fd, buf, 40);
close(fd);
if (nr != 40 || get_sha1_hex(buf, currsha1) < 0)
return -1;
return memcmp(oldsha1, currsha1, 20) ? -1 : 0;
}
int main(int argc, char **argv)
{
char *hex;
const char *refname, *value, *oldval, *path, *lockpath;
unsigned char sha1[20], oldsha1[20], currsha1[20];
int fd, written;
setup_git_directory();
if (argc < 3 || argc > 4)
usage(git_update_ref_usage);
refname = argv[1];
value = argv[2];
oldval = argv[3];
if (get_sha1(value, sha1) < 0)
die("%s: not a valid SHA1", value);
memset(oldsha1, 0, 20);
if (oldval && get_sha1(oldval, oldsha1) < 0)
die("%s: not a valid old SHA1", oldval);
path = resolve_ref(git_path("%s", refname), currsha1, !!oldval);
if (!path)
die("No such ref: %s", refname);
if (oldval) {
if (memcmp(currsha1, oldsha1, 20))
die("Ref %s changed to %s", refname, sha1_to_hex(currsha1));
/* Nothing to do? */
if (!memcmp(oldsha1, sha1, 20))
exit(0);
}
path = strdup(path);
lockpath = mkpath("%s.lock", path);
fd = open(lockpath, O_CREAT | O_EXCL | O_WRONLY, 0666);
if (fd < 0)
die("Unable to create %s", lockpath);
hex = sha1_to_hex(sha1);
hex[40] = '\n';
written = write(fd, hex, 41);
close(fd);
if (written != 41) {
unlink(lockpath);
die("Unable to write to %s", lockpath);
}
/*
* Re-read the ref after getting the lock to verify
*/
if (oldval && re_verify(path, oldsha1, currsha1) < 0) {
unlink(lockpath);
die("Ref lock failed");
}
/*
* Finally, replace the old ref with the new one
*/
if (rename(lockpath, path) < 0) {
unlink(lockpath);
die("Unable to create %s", path);
}
return 0;
}
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