In particular, if we check out something that isn't an old branch, it
now requires a new branch-name to check the thing out into.
So, for example:
git checkout -b my-branch v2.6.12
will create the new branch "my-branch", and start it at v2.6.12, while
git checkout master
will just switch back to the master branch.
Of course, if you want to create a new branch "my-branch" and _not_
check it out, you could have done so with just
git-rev-parse v2.6.12^0 > .git/refs/heads/my-branch
which I think I will codify as "git branch".
We still need to create a new branch if it didn't refer to an existing
branch, otherwise our HEAD will continue to point to something totally
different than what we just checked out.
I'll need to think about it. Maybe only do it with "-f" and force it to
the "master" branch?
This sounds nonsensical, but it's useful to make sure that the result is
a commit.
For example, "git-rev-parse v2.6.12" will return the _tag_ object for
v2.6.12, but "git-rev-parse v2.6.12^0" will return the _commit_ object
associated with that tag (and v2.6.12^1 will return the first parent).
Also, since the "parent" code will actually parse the commit, this,
together with the "--verify" flag, will verify not only that the result
is a single SHA1, but will also have verified that it's a proper commit
that we can see.
Cut-and-paste dup noticed by Junio. It's not even harmless, since a
match also causes that match to be invalidated, so this made it
impossible to update an existing branch by name.
I'd only tested the case of "ref doesn't exist at all on the other end",
which worked fine.
Use git-tar-tree directly from git source during make dist. This
handles bootstrap issue with git not being installed.
Signed-off-by: Chris Wright <chrisw@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
- When local optimization is used, the variable repo has
already been passed through get_repo_base so there is no need
to check for .git subdirectory in there.
- Use cpio -l instead of "cp -l".
Signed-off-by: Junio C Hamano <junkio@cox.net>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
git-cvsimport-script: add "import only" option which tells the script
not to perform a checkout after importing.
This ensures that the working directory and cache remain untouched and
will not create them if they do not exist.
Acked-by: Matthias Urlichs <smurf@smurf.noris.de>
Signed-off-by: Sven Verdoolaege <skimo@kotnet.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This option allows a write-tree even if the referenced objects are not
in the database.
Signed-off-by: Bryan Larsen <bryan.larsen@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This reverses the order of object lookup, to check pack index first and
then go to the filesystem to find .git/objects/??/ hierarchy.
When most of the objects are packed, this saves quite many stat() calls
and negative dcache entries; while the price this approach has to pay is
negligible, even when most of the objects are outside pack, because
checking pack index file is quite cheap.
Signed-off-by: Junio C Hamano <junkio@cox.net>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
When we allow a tag object in place of a commit object, we only
dereferenced the given tag once, which causes a tag that points at a tag
that points at a commit to be rejected. Instead, dereference tag
repeatedly until we get a non-tag.
This patch makes change to two functions:
- commit.c::lookup_commit_reference() is used by merge-base,
rev-tree and rev-parse to convert user supplied SHA1 to that of
a commit.
- rev-list uses its own get_commit_reference() to do the same.
Dereferencing tags this way helps both of these uses.
Signed-off-by: Junio C Hamano <junkio@cox.net>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
The location alt_odb[j].name[0..] is filled with ??/?{38} to form a sha1
filename to try, but I was too lazy to allocate a copy, so while
fsck_object_dir() is running for the directory, the filenames ??/?{38}
are filled after NUL (usually and always the location should have '/'),
making them "not found".
This should fix it.
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
We used to print the index of the object we unpacked, not how many we
had unpacked. Which caused slightly confusing progress reports like
100% (2/3) done
rather than the more obvious "3/3" for 100% ;)
Add write_sha1_to_fd(), which writes an object to a file descriptor. This
includes support for unpacking it and recompressing it.
Signed-off-by: Daniel Barkalow <barkalow@iabervon.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This ends up being very calming for big "git clone"s, since otherwise
you just get very frustrated with a long silence, wondering whether it's
working at all.
Use "-q" to quiet it down.
Now if we could just do the same for the initial "figure out what to
pack" phase, which can also be quite slow if the other end is busy (or
not packed and not in cache)...
If it is fed a commit with more than one leading blank lines,
the sed scripts git-format-patch-script used looped forever.
Using git-stripspace upfront makes the sed script somewhat
simpler to work around this problem.
Also use git-rev-parse so that we can say
$ git-format-patch-script HEAD^^^^
to prepare the latest four patches for e-mail submission.
Signed-off-by: Junio C Hamano <junkio@cox.net>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Add notes on branches, merging, tagging, and update some of the usage to
the friendlier "git cmd" syntax.
It's still ridiculously lacking, but perhaps it's a _bit_ more useful.
Instead of having to cut-and-paste the result, write it to the tag
directory directly. Also, start an editor for the tag message, rather
than just reading it from stdin.
It used to do "Merge $3" as the message, but that ends up being
inconvenient, and much more easily done inside git-pull-script instead.
This makes the third argument to "git resolve" much easier to explain.
Change git-update-cache --refresh behaviour to use sha1's rather than
comparing byte by byte.
[JC demangled whitespace from the posted patch himself because he
liked it so much. Also adjusted to the index_fd() interface
slightly done differently from the original one.]
Signed-off-by: Bryan Larsen <bryan.larsen@gmail.com>
Signed-off-by: Junio C Hamano <junkio@cox.net>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Add --info-only option to git-update-cache.
[JC demangled whitespace from the posted patch himself because he
liked it so much. Also adjusted to the index_fd() interface
slightly done differently from the original one.]
Signed-off-by: Bryan Larsen <bryan.larsen@gmail.com>
Signed-off-by: Junio C Hamano <junkio@cox.net>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This patch makes the first half of write_sha1_file() and
index_fd() externally visible, to allow callers to compute the
object ID without actually storing it in the object database.
[JC demangled the whitespaces himself because he liked the patch
so much, and reworked the interface to index_fd() slightly,
taking suggestion from Linus and of his own.]
Signed-off-by: Bryan Larsen <bryan.larsen@gmail.com>
Signed-off-by: Junio C Hamano <junkio@cox.net>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This silently adds the ".git" directory component if needed, so you
don't need to state it explicitly for the source. Also, it turns the
source into an absolute pathname when local, so that you can use
relative pathnames without losing sight of the source when we cd into
the destination.
The protocol always supported it, but send-pack didn't actually know how
to tell the other side about a new branch/tag.
NOTE! You'll have to name it explicitly on the command line: if you
don't name any branches, git-send-pack will default to the branches that
already exist.
It always uses a git-relative pathname, ie "refs/heads/master" instead of
".git/refs/heads/master" or whatever your GIT_DIR might be.
This way when we send refs back-and-forth between repositories, there's
never any question about GIT_DIR on either side.
This tries to be more lenient to the users and stricter to the
attackers by quoting the input properly for shell safety,
instead of forbidding certain characters from the input.
Things to note:
- We do not quote "prog" parameter (which comes from --exec).
The user should know what he is doing. --exec='echo foo'
will supply the first two parameters to the resulting
command, while --exec="'echo foo'" will give the first
parameter, a single string with a space inside.
- We do not care too much about leaking the sq_quote() output
just before running exec().
Signed-off-by: Junio C Hamano <junkio@cox.net>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
A useful shell safety helper sq_expand() was hidden as a static
function in diff.c. Extract it out and make it available as
sq_quote().
Signed-off-by: Junio C Hamano <junkio@cox.net>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
It sets up the normal git environment variables and a few helper
functions (currently just "die()"), and returns ok if it all looks like
a git archive. So use it something like
. git-sh-setup-script || die "Not a git archive"
to make the rest of the git scripts more careful and readable.
This is the script I use to prepare patches for e-mail submission.
Signed-off-by: Junio C Hamano <junkio@cox.net>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
I still worry about just quoting things when passing it off to "ssh" or
"sh -c", so I'm being anal. But _, ^ and , are certainly ok and while
both ~ and @ can have speacial meaning to shell/ssh they are benign.
The Makefile in the test suite directory considers any file
matching t[0-9][0-9][0-9][0-9]-*.sh as the top-level test script
to be executed. Unfortunately this was not documented, and the
common test library, t6000-lib.sh was named to match that
pattern. This caused t6000-lib.sh to be called from Makefile as
the top-level program, causing it to leave t/sed.script file
behind. Rename it to t6000lib.sh to prevent this, and document
the naming convention a bit more clearly.
Signed-off-by: Junio C Hamano <junkio@cox.net>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
When we are cloning a repository on a local filesystem, it is
faster to just create a hard linkfarm of .git/object hierarchy
and copy the .git/refs files. By default, the script uses the
clone-pack method, but it can be told with the -l flag to do the
hard linkfarm (falling back on recursive file copy) to replicate
the .git/object hierarchy.
Signed-off-by: Junio C Hamano <junkio@cox.net>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
targets: git.spec, dist, and rpm. A simple 'make rpm' will build the rpm.
Also adds git.spec.in which is used to generate git.spec.
Signed-off-by: Chris Wright <chrisw@osdl.org>
Replace (*f)() with f() where the former idiom was used in epoch.c
Signed-off-by: Jon Seymour <jon.seymour@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This change ensures that git-rev-list --merge-order produces the same result
irrespective of what position the --merge-order argument appears in the argument
list.
Signed-off-by: Jon Seymour <jon.seymour@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
When sed uses \n rather than ; as a separator (for BSD sed(1) compat),
it is cleaner to use a file directly, rather than an environment
variable containing \n characters.
This change changes t/t6000 write to sed.script directly and changes
the other tests to remove knowledge of sed.script.
Signed-off-by: Jon Seymour <jon.seymour@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Linus Torvalds