The low-level index operations aren't as important to regular users as
the rest of this "git concepts" chapter; so move it into a separate
chapter, and do some minor cleanup.
Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
"git internals" sounds like something only git developers must know
about, but this stuff should be of wider interest. Rename the chapter
and give it a slightly friendlier introduction.
Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
The descriptions of the various object types should all be a subsection
of the "Object Database" section.
I cribbed most of this chapter from the README (now core-intro.txt and
git(7)), because there's stuff in there people need to know and I was
too lazy to rewrite it. The audience isn't quite right, though--the
chapter is a mixture of user- and developer- level documentation that
isn't as appropriate now as it was originally.
So, reserve this chapter for stuff users need to know, and move the
source code introduction into a new "git hacking" chapter where we'll
also move any hacker-only technical details.
Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
Bram Schoenmakers noticed that git-config document was formatted
incorrectly. Depending on the version of AsciiDoc and docbook
toolchain, it is sometimes taken as a numbered example by AsciiDoc,
some other times passed intact to roff format to confuse "man".
Since we refer to the repository metadata directory as $GIT_DIR
elsewhere, work it around by using that symbolic name.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
An earlier commit fixed type-change case in "git add -u".
This adds a test to make sure we do not introduce regression.
At the same time, it fixes a stupid typo in the error message.
Signed-off-by: Benoit Sigoure <tsuna@lrde.epita.fr>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The description of the option gave impression that there
were several formats available by using three dots. There are
no other formats than tar and gzip currently supported.
Clarify that the archive goes to the standard output.
Signed-off-by: Jari Aalto <jari.aalto@cante.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This adds more proper rename detection limits. Instead of just checking
the limit against the number of potential rename destinations, we verify
that the rename matrix (which is what really matters) doesn't grow
ridiculously large, and we also make sure that we don't overflow when
doing the matrix size calculation.
This also changes the default limits from unlimited, to a rename matrix
that is limited to 100 entries on a side. You can raise it with the config
entry, or by using the "-l<n>" command line flag, but at least the default
is now a sane number that avoids spending lots of time (and memory) in
situations that likely don't merit it.
The choice of default value is of course very debatable. Limiting the
rename matrix to a 100x100 size will mean that even if you have just one
obvious rename, but you also create (or delete) 10,000 files, the rename
matrix will be so big that we disable the heuristics. Sounds reasonable to
me, but let's see if people hit this (and, perhaps more importantly,
actually *care*) in real life.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This will allow RFC-literate users to say:
format-patch --in-reply-to='<message.id@site.name>'
without forcing them to strip the surrounding angle brackets
like this:
format-patch --in-reply-to='message.id@site.name'
We accept both forms, and the latter gets necessary < and >
around it as before.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
A duplicate of an already existing section in the documentation of
git-filter-branch was added in commit
f95eef15f2.
This patch removes that redundant section.
Signed-off-by: Ulrik Sverdrup <ulrik.sverdrup@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
If the curl program is not available (or not executable), and git clone is
started to clone a repository through http, this is the output
Initialized empty Git repository in /tmp/puppet/.git/
/usr/bin/git-clone: line 37: curl: command not found
Cannot get remote repository information.
Perhaps git-update-server-info needs to be run there?
This patch improves the error message by checking the return code when
running curl to exit immediately if it's 126 or 127; the error output now
is
Initialized empty Git repository in /tmp/puppet/.git/
/usr/bin/git-clone: line 37: curl: command not found
Adrian Bridgett noticed this and reported through
http://bugs.debian.org/440976
Signed-off-by: Gerrit Pape <pape@smarden.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The previous check caused the hook to reject as unannotated any tag
whose SHA1 starts with a zero.
Signed-off-by: Alexandre Julliard <julliard@winehq.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
There was no newline at the end of the index commit message, putting
the shell prompt at its end after a 'git cat-file commit $id'. This is
similar to what was fixed in 843103d693.
Signed-off-by: Jean-Luc Herren <jlh@gmx.ch>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Right now one can amend the last non-merge commit using a dirty index
and in the process maybe cause the last commit to have the same tree
as its parent. In such a case one would want to discard the last commit
instead of amending it.
This reverts commit 8588452ceb.
Signed-off-by: Dmitry V. Levin <ldv@altlinux.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Although message-id by defintion should have surrounding angle
brackets, there is no point forcing people to type them in.
Signed-off-by: David Kastrup <dak@gnu.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
On filesystems where it is appropriate to set core.filemode
to false, test 29 ("commitdiff(0): mode change") fails when
git-commit does not notice a file (execute) permission change.
A fix requires noting the new file execute permission in the
index with a "git update-index --chmod=+x", prior to the commit.
Add a function (note_chmod) which implements this idea, and
insert a call in each test that modifies the x permission.
Signed-off-by: Ramsay Jones <ramsay@ramsay1.demon.co.uk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
1) pushes happen less often than fetches, so the bandwidth saving is
much less visible in that case overall.
2) thin packs have to be complemented with missing delta bases to be
valid, so many received thin packs will take more disk space.
3) the bother of repacking should be distributed amongst "clients"
i.e. fetchers and pushers as much as possible, and not the server
being fetched or pushed, to keep disk and CPU usage low on the
server.
This is why a fetch should get thin packs but a push should not.
Both Nico and I have been assuming that --no-thin was the default
behavior of git-push ever since Nico introduced --fix-thin into the
index-pack process, which allowed fetch and receive-pack to avoid
exploding packfiles received during transfer. This patch finally
makes it so.
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Remove obsolete details (core.legacyheaders is always true now).
Signed-off-by: Nicolas Pitre <nico@cam.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Most of this patch code and message was written by Shawn O. Pearce.
I made some tests to know what the problem was, and then I changed
the code related with the SIGPIPE signal.
If the user has misconfigured `user.signingkey` in their .git/config
or just doesn't have any secret keys on their keyring and they ask
for a signed tag with `git tag -s` we better make sure the resulting
tag was actually signed by gpg.
Prior versions of builtin git-tag allowed this failure to slip
by without error as they were not checking the return value of
the finish_command() so they did not notice when gpg exited with
an error exit status. They also did not fail if gpg produced an
empty output or if read_in_full received an error from the read
system call while trying to read the pipe back from gpg.
Finally, we did not actually honor any return value from the do_sign
function as it returns ssize_t but was being stored into an unsigned
long. This caused the compiler to optimize out the die condition,
allowing git-tag to continue along and create the tag object.
However, when gpg gets a wrong username, it exits before any read was done
and then the writing process receives SIGPIPE and program is terminated.
By ignoring this signal, anyway, the function write_or_die gets EPIPE from
write_in_full and exits returning 0 to the system without a message.
Here we better call to write_in_full directly so we can fail
printing a message and return safely to the caller.
With these issues fixed `git-tag -s` will now fail to create the
tag and will report a non-zero exit status to its caller, thereby
allowing automated helper scripts to detect (and recover from)
failure if gpg is not working properly.
Proposed-by: Shawn O. Pearce <spearce@spearce.org>
Signed-off-by: Carlos Rica <jasampler@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Use the rev-list --parents functionality to read the parents
of the commit. cat-file only shows the raw object with the
original parents and doesn't take into account grafts; so
we'll rely on rev-list machinery for the smarts here.
Signed-off-by: Eric Wong <normalperson@yhbt.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The code to squelch empty diffs introduced by commit
fb13227e08 would inadvertently
populate filespec "two" of a submodule change using the uninitialized
(null) SHA1, thereby replacing the submodule SHA1 by 0{40} in the output.
This change teaches diffcore_skip_stat_unmatch to handle
submodule changes correctly.
Signed-off-by: Sven Verdoolaege <skimo@kotnet.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
We have a workaround for the reparent function not working
correctly on the SVN native protocol servers. This workaround
opens a new connection (SVN::Ra object) to the new
URL/directory.
Since libsvn appears limited to only supporting one connection
at a time, this workaround invalidates the Git::SVN::Ra object
that is $self inside gs_fetch_loop_common(). So we need to
restart that connection once all the fetching is done for each
loop iteration to be able to run get_log() successfully.
Signed-off-by: Eric Wong <normalperson@yhbt.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
If the tag was moved in CVS or SVN history, it will be moved in the
imported history as well. Tag history is not tracked.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
If we're counting, a smaller number is 'fewer' not 'less'
Signed-off-by: Mike Ralphson <mike@abacus.co.uk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Many users get confused when `git push origin master:foo` works
when foo already exists on the remote repository but are confused
when foo doesn't exist as a branch and this form does not create
the branch foo.
This new example highlights the trick of including refs/heads/
in front of the desired branch name to create a branch.
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Kristian Høgsberg pointed out that the two file modifications
we were doing during the 'creating initial files' step are not even
used within the test suite. This was actually confusing as we do
not even need these changes for the tests to pass. All that really
matters here is the specific commit dates are used so that these
appear in the branch's reflog, and that the dates are different so
that the branch will update when asked and the reflog entry is
also updated. There is no need for the file modification.
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Recently I found that doing a sequence like the following:
git-new-workdir a b
...
git-new-workdir a b
by accident will cause a (and now also b) to have an infinite cycle
in its refs directory. This is caused by git-new-workdir trying
to create the "refs" symlink over again, only during the second
time it is being created within a's refs directory and is now also
pointing back at a's refs.
This causes confusion in git as suddenly branches are named things
like "refs/refs/refs/refs/refs/refs/refs/heads/foo" instead of the
more commonly accepted "refs/heads/foo". Plenty of commands start
to see ambiguous ref names and others just take ages to compute.
git-clone has the same safety check, so git-new-workdir should
behave just like it.
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
When the preimage we are patching is shorter than what the patch
text expects, we tried to match the buffer contents at the
"original" line with the fragment in full, without checking we
have enough data to match in the preimage. This caused the size
of a later memmove() to wrap around and attempt to scribble
almost the entire address space. Not good.
The code that follows the part this patch touches tries to match
the fragment with line offsets. Curiously, that code does not
have the problem --- it guards against reading past the end of
the preimage.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
HPA noticed that yum does not like the newer git RPM set; it turns out
that we do not ship git-p4 anymore but existing installations do not
realize the package is gone if we do not tell anything about it.
David Kastrup suggests using Obsoletes in the spec file of the new
RPM to replace the old package, so here is a try.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Allow port specification in ssh:// URLs in the
usual notation:
ssh://[user@]host.domain[:<port>]/<path>
This allows git to be used over ssh-tunneling
networks.
Signed-off-by: Luben Tuikov <ltuikov@yahoo.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
When a topic branch is rebased, some of whose commits are already
cherry-picked upstream:
o--X--A--B--Y <- master
\
A--B--Z <- topic
then 'git rebase -m master' would report:
Already applied: 0001 Y
Already applied: 0002 Y
With this fix it reports the expected:
Already applied: 0001 A
Already applied: 0002 B
As an added bonus, this change also avoids 'echo' of a commit message,
which might contain escapements.
Signed-off-by: Johannes Sixt <johannes.sixt@telecom.at>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The warning message to suggest "Consider running git-status" from
"git-diff" that we experimented with during the 1.5.3 cycle turns
out to be a bad idea. It robbed cache-dirty information from people
who valued it, while still asking users to run "update-index --refresh".
It was hoped that the new behaviour would at least have some educational
value, but not showing the cache-dirty paths like before meant that the
user would not even know easily which paths were cache-dirty, and it
made the need to refresh the index look like even more unnecessary chore.
This commit reinstates the traditional behaviour, but with a twist.
By default, the empty "diff --git" output is totally squelched out
from "git diff" output. At the end of the command, it automatically
runs "update-index --refresh" as needed, without even bothering the
user. In other words, people who do not care about the cache-dirtyness
do not even have to see the warning.
The traditional behaviour to see the stat-dirty output and to bypassing
the overhead of content comparison can be specified by setting the
configuration variable diff.autorefreshindex to false.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This patch removes certain behaviour of "git tag -l foo", currently
listing every tag name having "foo" as a substring. The same
thing now could be achieved doing "git tag -l '*foo*'".
This feature was added recently when git-tag.sh got the -n option
for showing tag annotations, because that commit also replaced the
old "grep pattern" behaviour with a more preferable "shell pattern"
behaviour (although slightly modified as you can see).
Thus, the following builtin-tag.c implemented it in order to
ensure that tests were passing unchanged with both programs.
Since common "shell patterns" match names with a given substring
_only_ when * is inserted before and after (as in "*substring*"), and
the "plain" behaviour cannot be achieved easily with the current
implementation, this is mostly the right thing to do, in order to
make it more flexible and consistent.
Tests for "git tag" were also changed to reflect this.
Signed-off-by: Carlos Rica <jasampler@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Although dcommit could detect if the first commit in the series
would conflict with the HEAD revision in SVN, it could not
detect conflicts in further commits it made.
Now we rebase each uncommitted change after each revision is
committed to SVN to ensure that we are up-to-date. git-rebase
will bail out on conflict errors if our next change cannot be
applied and committed to SVN cleanly, preventing accidental
clobbering of changes on the SVN-side.
--no-rebase users will have trouble with this, and are thus
warned if they are committing more than one commit. Fixing this
for (hopefully uncommon) --no-rebase users would be more complex
and will probably happen at a later date.
Thanks to David Watson for finding this and the original test.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
If the configuration of the user has "diff.color = true", the
output from "log" we invoke internally added color codes, which
broke the parser.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Tested-by: Johannes Schindelin <Johannes.Schindelin@gmx.de>
Acked-by: Eric Wong <normalperson@yhbt.net>
With this function, a commit filter can leave out unwanted commits
(such as temporary commits). It does _not_ undo the changeset
corresponding to that commit, but it _skips_ the revision. IOW
no tree object is changed by this.
If you like to commit early and often, but want to filter out all
intermediate commits, marked by "@@@" in the commit message, you can
now do this with
git filter-branch --commit-filter '
if git cat-file commit $GIT_COMMIT | grep '@@@' > /dev/null;
then
skip_commit "$@";
else
git commit-tree "$@";
fi' newbranch
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Move the convenience functions to the top of git-filter-branch.sh, and
return from the script when the environment variable SOURCE_FUNCTIONS is
set.
By sourcing git-filter-branch with that variable set automatically, all
commit filters may access the convenience functions like "map".
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The interactive mode of rebase can be used to split commits. Tell the
interested parties about it, with a dedicated section in the man page.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Some time ago, filter-branch's syntax changed so that more than one
ref can be rewritten at the same time. This involved the removal of
the ref name for the result; instead, the refs are rewritten in-place.
This updates the last leftovers in the documentation to reflect the
new behavior.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
