The old shell version used show-branch --independent to filter for the
ones that cannot be reached from any other reference.
The new C version uses reduce_heads() from commit.c for this, so
add test to ensure it works as expected.
Signed-off-by: Miklos Vajna <vmiklos@frugalware.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The new function reduce_heads() is given a list of commits, and removes
ones that can be reached from other commits in the list. It is useful for
reducing the commits randomly thrown at the git-merge command and remove
redundant commits that the user shouldn't have given to it.
The implementation uses the get_merge_bases_many() introduced in the
previous commit. If the merge base between one commit taken from the list
and the remaining commits is the commit itself, that means the commit is
reachable from some of the other commits.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This introduces a new function get_merge_bases_many() which is a natural
extension of two commit merge base computation. It is given one commit
(one) and a set of other commits (twos), and computes the merge base of
one and a merge across other commits.
This is mostly useful to figure out the common ancestor when iterating
over heads during an octopus merge. When making an octopus between
commits A, B, C and D, we first merge tree of A and B, and then try to
merge C with it. If we were making pairwise merge, we would be recording
the tree resulting from the merge between A and B as a commit, say M, and
then the next round we will be computing the merge base between M and C.
o---C...*
/ .
o---B...M
/ .
o---o---A
But during an octopus merge, we actually do not create a commit M. In
order to figure out that the common ancestor to use for this merge,
instead of computing the merge base between C and M, we can call
merge_bases_many() with one set to C and twos containing A and B.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The old shell version handled only 25 refs but we no longer have this
limitation. Add a test to make sure this limitation will not be
introduced again in the future.
Signed-off-by: Miklos Vajna <vmiklos@frugalware.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This is like get_merge_bases() but it works for multiple heads, like
show-branch --merge-base.
Signed-off-by: Miklos Vajna <vmiklos@frugalware.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Move all functionality (except config and option parsing) from
cmd_fmt_merge_msg() to fmt_merge_msg(), so that other builtins can use
it without a child process.
All functions have been changed to use strbufs, and now only
cmd_fmt_merge_msg() reads directly from a file / writes anything to
stdout.
Signed-off-by: Miklos Vajna <vmiklos@frugalware.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
builtin-read-tree has a read_cache_unmerged() which is useful for other
builtins, for example builtin-merge uses it as well. Move it to
read-cache.c to avoid code duplication.
Signed-off-by: Miklos Vajna <vmiklos@frugalware.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Test if the given strategies are used and test the case when multiple
strategies are configured using a space separated list.
Also test if the best strategy is picked if none is specified. This is
done by adding a simple test case where recursive detects a rename, but
resolve does not, and verify that finally merge will pick up the
previous.
Signed-off-by: Miklos Vajna <vmiklos@frugalware.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
builtin-remote.c and parse-options.c both have a skip_prefix() function,
for the same purpose. Move parse-options's one to git-compat-util.h and
let builtin-remote use it as well.
Signed-off-by: Miklos Vajna <vmiklos@frugalware.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This function is useful outside builtin-merge-recursive, for example in
builtin-merge.
Signed-off-by: Miklos Vajna <vmiklos@frugalware.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
split_cmdline() is currently used for aliases only, but later it can be
useful for other builtins as well. Move it to alias.c for now,
indicating that originally it's for aliases, but we'll have it in libgit
this way.
Signed-off-by: Miklos Vajna <vmiklos@frugalware.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This way, argv[0] isn't clobbered when parse-options filters argv[].
Signed-off-by: Pierre Habouzit <madcoder@debian.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
If we begin to parse -abc and that the parser knew about -a and -b, it
will fake a -c switch for the caller to deal with.
Of course in the case of -acb (supposing -c is not taking an argument) the
caller will have to be especially clever to do the same thing. We could
think about exposing an API to do so if it's really needed, but oh well...
Signed-off-by: Pierre Habouzit <madcoder@debian.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This way we can catch "unknown" options more easily.
Signed-off-by: Pierre Habouzit <madcoder@debian.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
For now it's unable to stop at unknown options, this commit merely
reorganize some code around.
Signed-off-by: Pierre Habouzit <madcoder@debian.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Make the struct optparse_t public under the better name parse_opt_ctx_t.
Signed-off-by: Pierre Habouzit <madcoder@debian.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
We don't need test results to be committed if we're fixing a test.
Signed-off-by: Brian Gernhardt <benji@silverinsanity.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
There are basically two categories of update failures for
local refs:
1. problems outside of git, like disk full, bad
permissions, etc.
2. D/F conflicts on tracking branch ref names
In either case, there should already have been an error
message. In case '1', hopefully enough information has
already been given that the user can fix it. In the case of
'2', we can hint that the user can clean up their tracking
branch area by using 'git remote prune'.
Note that we don't actually know _which_ case we have, so
the user will receive the hint in case 1, as well. In this
case the suggestion won't do any good, but hopefully the
user is smart enough to figure out that it's just a hint.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The rev-parse manpage introduces the branch@{date} syntax,
and mentions the reflog specifically. However, new users may
not be familiar with the distinction between the reflog and
the commit date, so let's help them out with a "you may be
interested in --until" pointer.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
When git-parse-remote and git-sh-setup are not installed in
$(bindir) anymore, the shell script library won't be found on
user's $PATH in general.
Signed-off-by: Jonathan Nieder <jrnieder@uchicago.edu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
After initializing the config in the newly-created repository, we
need to unset GIT_CONFIG so that the global configs are read again.
Noticed by Pieter de Bie.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This makes the default expiration period for the reflog that implements
stash infinite.
The original behaviour to autoexpire old stashes can be restored by using
the gc.refs/stash.{reflogexpire,reflogexpireunreachable} configration
variables introduced by the previous commit.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
In addition to gc.reflogexpireunreachable and gc.reflogexpire, this lets
you set gc.<pattern>.reflogexpireunreachable and gc.<pattern>.reflogexpire
variables.
When "git reflog expire" expires reflog entry for $ref, the expiry timers
are taken from the first <pattern> that matches $ref (and if there isn't
the global default value is used).
For example, you could:
[gc "refs/stash"]
reflogexpire = never
reflogexpireunreachable = never
[gc "refs/remotes/*"]
reflogexpire = 7 days
reflogexpireunreachable = 3 days
[gc]
reflogexpire = 90 days
reflogexpireunreachable = 30 days
Signed-off-by: Junio C Hamano <gitster@pobox.com>
* maint:
git-svn: don't sanitize remote names in config
git-svn: avoid filling up the disk with temp files.
git cat-file: Fix memory leak in batch mode
fix git config example syntax
avoid off-by-one error in run_upload_archive
The original sanitization code was just taken from the
remotes2config.sh shell script in contrib.
Credit to Avery Pennarun for noticing this mistake, and Junio
for clarifying the rules for config section names:
Junio C Hamano wrote in <7vfxr23s6m.fsf@gitster.siamese.dyndns.org>:
> In
>
> [foo "bar"] baz = value
>
> foo and baz must be config.c::iskeychar() (and baz must be isalpha()), but
> "bar" can be almost anything.
Signed-off-by: Eric Wong <normalperson@yhbt.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Before this patch, name_width becomes negative or null for width values
less than 15 and name_width values greater than 25 (default: 50). This
leads to output random data.
This patch checks for minimal width and name_width values.
Signed-off-by: Olivier Marin <dkr@freesurf.fr>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This removes, from the documentation and the bash completion script, the
two config options that were introduced by the git-whatchanged.sh script
and lost in the C rewrite. Today, we can use aliases as an alternative.
Signed-off-by: Olivier Marin <dkr@freesurf.fr>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Commit ffe256f9ba ("git-svn: Speed up fetch")
introduced changes that create a temporary file for each object fetched by
svn. These files should be deleted automatically, but perl apparently
doesn't do this until the process exits (or perhaps when its garbage
collector runs).
This means that on a large fetch, especially with lots of branches, we
sometimes fill up /tmp completely, which prevents the next temp file from
being written completely. This is aggravated by the fact that a new temp
file is created for each updated file, even if that update produces a file
identical to one already in git. Thus, it can happen even if there's lots
of disk space to store the finished repository.
We weren't adequately checking for write errors, so this would result in an
invalid file getting committed, which caused git-svn to fail later with an
invalid checksum.
This patch adds a check to syswrite() so similar problems don't lead to
corruption in the future. It also unlink()'s each temp file explicitly
when we're done with it, so the disk doesn't need to fill up.
Signed-off-by: Avery Pennarun <apenwarr@gmail.com>
Tested-by: Björn Steinbrink <B.Steinbrink@gmx.de>
Acked-by: Eric Wong <normalperson@yhbt.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
When run in batch mode, git cat-file never frees the memory for the blob
contents it is printing. This quickly adds up and causes git-svn to be
hardly usable for imports of large svn repos, because it uses cat-file in
batch mode and cat-file's memory usage easily reaches several hundred MB
without any good reason.
Signed-off-by: Björn Steinbrink <B.Steinbrink@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
With the previous patch, not configuring any encryption (either on or
off) would leave $smtp_encryption undefined. We simply set it to the
empty string in that case.
Signed-off-by: Thomas Rast <trast@student.ethz.ch>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
git-config expects a space, not '=' between option and value.
Also, quote the value since it contains globs, which some shells will not
pass through unchanged, or will abort if the glob doesn't expand.
Signed-off-by: Joey Hess <joey@kitenet.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Make sure that buf has enough space to store the trailing \0 of
the command line argument, too.
Signed-off-by: Jochen Voss <voss@seehuhn.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Sometimes, the easiest way to fix up a patch is to edit it directly, even
adding or deleting lines. Now, many people are not as divine as certain
benevolent dictators as to update the hunk headers correctly at the first
try.
So teach the tool to do it for us.
[jc: with tests]
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
There is no really good reason to have a merge with more than 16
parents, but we have a history of giving our users rope.
Combined with the fact that there was no good reason for that
arbitrary limit in the first place, here is an all-too-easy to fix.
Kind of wished-for by Len Brown.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
A lot of modules that have nothing to do with git-shell functionality
were linked in, bloating git-shell more than 8 times.
This patch cuts off redundant dependencies by:
1. providing stubs for three functions that make no sense for git-shell;
2. moving quote_path_fully from environment.c to quote.c to make the
later self sufficient;
3. moving make_absolute_path into a new separate file.
The following numbers have been received with the default optimization
settings on master using GCC 4.1.2:
Before:
text data bss dec hex filename
143915 1348 93168 238431 3a35f git-shell
After:
text data bss dec hex filename
17670 788 8232 26690 6842 git-shell
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Before this patch, something like "git help tutorial" did not work,
people had to use "git help gittutorial" which is not very intuitive.
This patch uses the "is_git_command" function to test early if the
argument passed to "git help" is a git command, and if this is not the
case then we prefix the argument with "git" instead of "git-".
This way, things like "git help tutorial" or "git help glossary" will
work fine.
The little downside of this patch is that the "is_git_command" is a
little bit slow.
Signed-off-by: Christian Couder <chriscool@tuxfamily.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
When working with a lot of people who backport patches all day long, every
once in a while I get a patch that modifies the same file more than once
inside the same patch. git-apply either fails if the second change relies
on the first change or silently drops the first change if the second change
is independent.
The silent part is the scary scenario for us. Also this behaviour is
different from the patch-utils.
I have modified git-apply to create a table of the filenames of files it
modifies such that if a later patch chunk modifies a file in the table it
will buffer the previously changed file instead of reading the original file
from disk.
Logic has been put in to handle creations/deletions/renames/copies. All the
relevant tests of git-apply succeed.
A new test has been added to cover the cases I addressed.
The fix is relatively straight-forward.
Signed-off-by: Don Zickus <dzickus@redhat.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Previously, if there was an error while storing a local
tracking ref, the low-level functions would report an error,
but fetch's status output wouldn't indicate any problem.
E.g., imagine you have an old "refs/remotes/origin/foo/bar" but
upstream has deleted "foo/bar" in favor of a new branch
"foo". You would get output like this:
error: there are still refs under 'refs/remotes/origin/foo'
From $url_of_repo
* [new branch] foo -> origin/foo
With this patch, the output takes into account the status of
updating the local ref:
error: there are still refs under 'refs/remotes/origin/foo'
From $url_of_repo
! [new branch] foo -> origin/foo (unable to update local ref)
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
When we call "git clone" with a url that has a rewrite rule in either
$HOME/.gitconfig or /etc/gitconfig, the URL can be different from
what the command line expects it to be.
So, let's use the URL as the remote structure has it, not the literal
string from the command line.
Noticed by Pieter de Bie.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Acked-by: Daniel Barkalow <barkalow@iabervon.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This is a very well established command line convention that old residents
of the git mailing list knew by heart and nobody even thought about
documenting it explicitly, which was not very nice.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Now "diff --check" can detect not just whitespace errors but also notices
leftover conflict marker lines, we can use it in the sample pre-commit
hook script.
These days the object layer knows about the empty tree object without
actually having one in the repository, so we can run the test even for the
initial commit.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This teaches "diff --check" to detect and complain if the change
adds lines that look like leftover conflict markers.
We should be able to remove the old Perl script used in the sample
pre-commit hook and modernize the script with this facility.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
When a patch adds new blank lines at the end, "git apply --whitespace"
warns. This teaches "diff --check" to do the same.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
