Normally we need recursion for "*". In this case we know that it
matches everything until "/" so we can skip the recursion.
glibc, '*/*/*' on linux-2.6.git file list 2000 times
before:
wildmatch 8s 74513us
fnmatch 1s 97042us or 13.59% faster
after:
wildmatch 3s 521862us
fnmatch 3s 488616us or 99.06% slower
Same test with compat/fnmatch:
wildmatch 8s 110763us
fnmatch 2s 980845us or 36.75% faster
wildmatch 3s 522156us
fnmatch 1s 544487us or 43.85% slower
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
So far, wildmatch() has always honoured directory boundary and there
was no way to turn it off. Make it behave more like fnmatch() by
requiring all callers that want the FNM_PATHNAME behaviour to pass
that in the equivalent flag WM_PATHNAME. Callers that do not specify
WM_PATHNAME will get wildcards like ? and * in their patterns matched
against '/', just like not passing FNM_PATHNAME to fnmatch().
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
"**" is adjusted to only be effective when surrounded by slashes, in
40bbee0 (wildmatch: adjust "**" behavior - 2012-10-15). Except that
the commit did it wrong:
1. when it checks for "the preceding slash unless ** is at the
beginning", it compares to wrong pointer. It should have compared
to the beginning of the pattern, not the text.
2. prev_p points to the character before "**", not the first "*". The
correct comparison must be "prev_p < pattern" or
"prev_p + 1 == pattern", not "prev_p == pattern".
3. The pattern must be surrounded by slashes unless it's at the
beginning or the end of the pattern. We do two checks: one for the
preceding slash and one the trailing slash. Both checks must be
met. The use of "||" is wrong.
This patch fixes all above.
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
When testing aliases in t/t1020-subdirectory.sh use longer names so that
they're less likely to conflict with a git-* command somewhere in the
$PATH.
I have a git-ss command in my path which prevents the 'ss' alias from
being used. This command will always fail for git.git, causing the test
to fail. Even if the command succeeded, that would be a false success
for the test since the alias wasn't actually used. A longer, more
descriptive name will make it much less likely that somebody has a
command in their $PATH which will shadow the alias created for the test.
While here, use a longer name for the 'test' alias as well since that is
also short and meaningful enough to make it not unlikely that somebody
would have a command in their $PATH which will shadow that as well.
Signed-off-by: Aaron Schrab <aaron@schrab.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The previous commit documented two known breakages revolving around
a case where one side flips a tree into a blob (or vice versa),
where the original code simply gets confused and feeds a mixture of
trees and blobs into either the recursive merge-tree (and recursing
into the blob will fail) or three-way merge (and merging tree contents
together with blobs will fail).
Fix it by feeding trees (and only trees) into the recursive
merge-tree machinery and blobs (and only blobs) into the three-way
content level merge machinery separately; when this happens, the
entire merge has to be marked as conflicting at the structure level.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Rename the "branch1" parameter given to resolve() to "ours", to
clarify what is going on. Also, annotate the unresolved_directory()
function with some comments to show what decisions are made in each
step, and highlight two bugs that need to be fixed.
Add two tests to t4300 to illustrate these bugs.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Some platforms (e.g. NetBSD 6.0) seem to configure their CVS to
allow "cvs init" in an existing directory only to members of
"cvsadmin".
Instead of preparing an empty directory and then running "cvs init"
on it, let's run "cvs init" and let it create the necessary
directory.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
cherry-picking into an unborn branch should work, so make it work,
with or without --ff.
Cherry-picking anything other than a commit that only adds files, will
naturally result in conflicts. Similarly, revert also works, but will
result in conflicts unless the specified revision only deletes files.
Signed-off-by: Martin von Zweigbergk <martinvonz@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
A function for checking that two given parameters refer to the same
revision was defined in several places, so move the definition to
test-lib-functions.sh instead.
Signed-off-by: Martin von Zweigbergk <martinvonz@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Change color of unexpectedly fixed known breakages to bold red. An
unexpectedly passing test indicates that the test code is somehow
broken or out of sync with the code it is testing. Either way this is
an error which is potentially as bad as a failing test, and as such is
no longer portrayed as a pass in the output.
Signed-off-by: Adam Spiers <git@adamspiers.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Add 5 new full test suite runs each with a different number of
passing/failing/broken/fixed tests, in order to ensure that the
correct exit code and output are generated in each case. As before,
these are run in a subdirectory to avoid disrupting the metrics for
the parent tests.
Signed-off-by: Adam Spiers <git@adamspiers.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This will allow us to test the test framework more thoroughly
without disrupting the top-level test metrics.
Signed-off-by: Adam Spiers <git@adamspiers.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Now that we've adopted a "traffic lights" coloring scheme, yellow is
used for warning messages, so we need to re-color info messages to
something less alarmist. Blue is a universal color for informational
messages; however we are using that for skipped tests in order to
align with the color schemes of other test suites. Therefore we use
cyan which is also blue-ish, but visually distinct from blue.
This was suggested on the list a while ago and no-one raised any
objections:
http://thread.gmane.org/gmane.comp.version-control.git/205675/focus=205966
An earlier iteration of this patch used bold cyan, but the point of
this change is to make them less alarming; let's drop the boldness.
Also paint the message to report skipping the whole thing via
GIT_SKIP_TESTS mechanism in the same color as the "info" color
that is used on the final summary line for the entire script.
Signed-off-by: Adam Spiers <git@adamspiers.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Skipped tests indicate incomplete test coverage. Whilst this is not a
test failure or other error, it's still not a complete success.
Other testsuite related software like automake, autotest and prove
seem to use blue for skipped tests, so let's follow suit.
Signed-off-by: Adam Spiers <git@adamspiers.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Yellow seems a more appropriate color than bold green when
considering the universal traffic lights coloring scheme, where
green conveys the impression that everything's OK, and amber that
something's not quite right.
Likewise, change the color of the summarized total number of known
breakages from bold red to the same yellow to be less alarmist and
more consistent with the above.
An earlier version of this patch used bold yellow but because these
are all long-known failures, reminding them to developers in bold
over and over does not help encouraging them to take a look at them
very much. This iteration paints them in plain yellow instead to
make them less distracting.
Signed-off-by: Adam Spiers <git@adamspiers.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Git takes pathspec arguments in many places to limit the
scope of an operation. These pathspecs are treated not as
literal paths, but as glob patterns that can be fed to
fnmatch. When a user is giving a specific pattern, this is a
nice feature.
However, when programatically providing pathspecs, it can be
a nuisance. For example, to find the latest revision which
modified "$foo", one can use "git rev-list -- $foo". But if
"$foo" contains glob characters (e.g., "f*"), it will
erroneously match more entries than desired. The caller
needs to quote the characters in $foo, and even then, the
results may not be exactly the same as with a literal
pathspec. For instance, the depth checks in
match_pathspec_depth do not kick in if we match via fnmatch.
This patch introduces a global command-line option (i.e.,
one for "git" itself, not for specific commands) to turn
this behavior off. It also has a matching environment
variable, which can make it easier if you are a script or
porcelain interface that is going to issue many such
commands.
This option cannot turn off globbing for particular
pathspecs. That could eventually be done with a ":(noglob)"
magic pathspec prefix. However, that level of granularity is
more cumbersome to use for many cases, and doing ":(noglob)"
right would mean converting the whole codebase to use
"struct pathspec", as the usual "const char **pathspec"
cannot represent extra per-item flags.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This allows you to easily record a submodule.<name>.branch option in
.gitmodules when you add a new submodule. With this patch,
$ git submodule add -b <branch> <repository> [<path>]
$ git config -f .gitmodules submodule.<path>.branch <branch>
reduces to
$ git submodule add -b <branch> <repository> [<path>]
This means that future calls to
$ git submodule update --remote ...
will get updates from the same branch that you used to initialize the
submodule, which is usually what you want.
Signed-off-by: W. Trevor King <wking@tremily.us>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The current `update` command incorporates the superproject's gitlinked
SHA-1 ($sha1) into the submodule HEAD ($subsha1). Depending on the
options you use, it may checkout $sha1, rebase the $subsha1 onto
$sha1, or merge $sha1 into $subsha1. This helps you keep up with
changes in the upstream superproject.
However, it's also useful to stay up to date with changes in the
upstream subproject. Previous workflows for incorporating such
changes include the ungainly:
$ git submodule foreach 'git checkout $(git config --file $toplevel/.gitmodules submodule.$name.branch) && git pull'
With this patch, all of the useful functionality for incorporating
superproject changes can be reused to incorporate upstream subproject
updates. When you specify --remote, the target $sha1 is replaced with
a $sha1 of the submodule's origin/master tracking branch. If you want
to merge a different tracking branch, you can configure the
`submodule.<name>.branch` option in `.gitmodules`. You can override
the `.gitmodules` configuration setting for a particular superproject
by configuring the option in that superproject's default configuration
(using the usual configuration hierarchy, e.g. `.git/config`,
`~/.gitconfig`, etc.).
Previous use of submodule.<name>.branch
=======================================
Because we're adding a new configuration option, it's a good idea to
check if anyone else is already using the option. The foreach-pull
example above was described by Ævar in
commit f030c96d86
Author: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Date: Fri May 21 16:10:10 2010 +0000
git-submodule foreach: Add $toplevel variable
Gerrit uses the same interpretation for the setting, but because
Gerrit has direct access to the subproject repositories, it updates
the superproject repositories automatically when a subproject changes.
Gerrit also accepts the special value '.', which it expands into the
superproject's branch name.
Although the --remote functionality is using `submodule.<name>.branch`
slightly differently, the effect is the same. The foreach-pull
example uses the option to record the name of the local branch to
checkout before pulls. The tracking branch to be pulled is recorded
in `.git/modules/<name>/config`, which was initialized by the module
clone during `submodule add` or `submodule init`. Because the branch
name stored in `submodule.<name>.branch` was likely the same as the
branch name used during the initial `submodule add`, the same branch
will be pulled in each workflow.
Implementation details
======================
In order to ensure a current tracking branch state, `update --remote`
fetches the submodule's remote repository before calculating the
SHA-1. However, I didn't change the logic guarding the existing fetch:
if test -z "$nofetch"
then
# Run fetch only if $sha1 isn't present or it
# is not reachable from a ref.
(clear_local_git_env; cd "$path" &&
( (rev=$(git rev-list -n 1 $sha1 --not --all 2>/dev/null) &&
test -z "$rev") || git-fetch)) ||
die "$(eval_gettext "Unable to fetch in submodule path '\$path'")"
fi
There will not be a double-fetch, because the new $sha1 determined
after the `--remote` triggered fetch should always exist in the
repository. If it doesn't, it's because some racy process removed it
from the submodule's repository and we *should* be re-fetching.
Signed-off-by: W. Trevor King <wking@tremily.us>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The test helper svnrdump_sim.py is used as "svnrdump" during the
execution of this test, but the arrangement was not optimal:
- it relied on symbolic links;
- unportable "export VAR=VAL" was used;
- GIT_BUILD_DIR variable was not quoted correctly;
- it assumed that the Python interpreter is in /usr/bin/ and
called "python" (i.e. not "python2.7" etc.)
Rework this by writing a small shell script that spawns the right
Python interpreter, using the right quoting.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
With d4a7ffa (tests: "cp -a" is a GNUism, 2012-10-08), we got rid of
most of them, but the ones in a topic that was still in flight were
missed.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
These "expect-failure" tests were not looking for the right string
in the patch file. For example:
grep "^ *"S. E. Cipient" <scipient@example.com>\$" patch5
was looking for "^ *S." in these three files:
"E."
"Cipient <scipient@example.com>$"
"patch5"
With some implementations of grep, the lack of file "E." was
reported as an error, leading to the failure of the test.
With other implementations of grep, the pattern "^ *S." matched what
was in patch5, without diagnosing the missing files as an error, and
made these tests unexpectedly pass.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The check_snapshot function makes sure that no cruft outside the
repository hierarchy is added to the tar archive. The output from
"tar tf" on the resulting archive is inspected to see if there is
anything that does not begin with "$prefix/".
There are two issues with this implementation:
- Traditional tar implemenations that do not understand
pax_global_header will write it out as if it is a plain file at
the top-level;
- Some implementations of tar do not add trailing slash when
showing a directory entry (i.e. the output line for the entire
archive will show "$prefix", not "$prefix/").
Fix them so that what we want to validate can be tested with
traditional tar implementations.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
On systems without "locale" installed, t0200-gettext-basic.sh leaked
error messages when checking if some test locales are available.
Hide them, as they are not very useful.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
These tests themselves are properly protected by the GPG
prerequisite, but one of the set-up steps outside the
test_expect_success block unconditionally assumed that there is a
gpghome/ directory, which is not true if GPG is not being used.
It may be a good idea to move the whole set-up steps in the test but
that is a follow-up topic.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
"git log -p -S<string>" now looks for the <string> after applying
the textconv filter (if defined); earlier it inspected the contents
of the blobs without filtering.
The manpage of gitattributes says: "The rules how the pattern
matches paths are the same as in .gitignore files" and the gitignore
pattern matching has a pattern ending with / for directory matching.
This rule is specifically relevant for the 'export-ignore' rule used
for git archive.
Signed-off-by: Jean-Noel Avila <jn.avila@free.fr>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Traditionally, %C(color attr) always emitted the ANSI color
sequence; it was up to the scripts that wanted to conditionally
color their output to omit %C(...) specifier when they do not want
colors.
Optionally allow "auto," to be prefixed to the color, so that the
output is colored iff we would color regular "log" output
(e.g., taking into account color.* and --color command line
options).
Tests and pretty_context bits by Jeff King <peff@peff.net>.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The test_format function did not indent its in-line test
script in an attempt to make the output of the test look
better. But it does not make a big difference to the output,
and the source looks quite ugly. Let's use our normal
indenting instead.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The old output to say "not ok - 1 messsage" was working by accident
only because the test numbers are optional in TAP.
Signed-off-by: Adam Spiers <git@adamspiers.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Intent-to-add entries used to forbid writing trees so it was not a
problem. After commit 3f6d56d (commit: ignore intent-to-add entries
instead of refusing - 2012-02-07), we can generate trees from an index
with i-t-a entries.
However, the commit forgets to invalidate all paths leading to i-t-a
entries. With fully valid cache-tree (e.g. after commit or
write-tree), diff operations may prefer cache-tree to index and not
see i-t-a entries in the index, because cache-tree does not have them.
Reported-by: Jonathon Mah <me@JonathonMah.com>
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The failing tests make use of a POSIX character class, '[:xdigit:]'
in this case, which some versions of the fnmatch() library function
do not support. In the spirit of commit f1cf7b79 ("t3070: disable
unreliable fnmatch tests", 15-10-2012), we disable the fnmatch() half
of these tests.
Signed-off-by: Ramsay Jones <ramsay@ramsay1.demon.co.uk>
Acked-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The motivation for mailmap.blob is to let users of bare
repositories use the mailmap feature, as they would not have
a checkout containing the .mailmap file. We can make it even
easier for them by just looking in HEAD:.mailmap by default.
We can't know for sure that this is where they would keep a
mailmap, of course, but it is the best guess (and it matches
the non-bare behavior, which reads from HEAD:.mailmap in the
working tree). If it's missing, git will silently ignore the
setting.
We do not do the same magic in the non-bare case, because:
1. In the common case, HEAD:.mailmap will be the same as
the .mailmap in the working tree, which is a no-op.
2. In the uncommon case, the user has modified .mailmap
but not yet committed it, and would expect the working
tree version to take precedence.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
In a bare repository, there isn't a simple way to respect an
in-tree mailmap without extracting it to a temporary file.
This patch provides a config variable, similar to
mailmap.file, which reads the mailmap from a blob in the
repository.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
In a repository cloned from somewhere else, you typically have a
symbolic ref refs/remotes/origin/HEAD pointing at the 'master'
remote-tracking ref that is next to it. When fetching into such a
repository with "git fetch --mirror" from another repository that
was similarly cloned, the implied wildcard refspec refs/*:refs/*
will end up asking to update refs/remotes/origin/HEAD with the
object at refs/remotes/origin/HEAD at the remote side, while asking
to update refs/remotes/origin/master the same way. Depending on the
order the two updates happen, the latter one would find that the
value of the ref before it is updated has changed from what the code
expects.
When the user asks to update the underlying ref via the symbolic ref
explicitly without using a wildcard refspec, e.g. "git fetch $there
refs/heads/master:refs/remotes/origin/HEAD", we should still let him
do so, but when expanding wildcard refs, it will result in a more
intuitive outcome if we simply ignore local symbolic refs.
As the purpose of the symbolic ref refs/remotes/origin/HEAD is to
follow the ref it points at (e.g. refs/remotes/origin/master), its
value would change when the underlying ref is updated.
Earlier commit da3efdb (receive-pack: detect aliased updates which
can occur with symrefs, 2010-04-19) fixed a similar issue for "git
push".
Signed-off-by: Junio C Hamano <gitster@pobox.com>
A recent commit [1] fixed a off-by-one wrapping error. As a
side-effect, the conditional in add_wrapped_shortlog_msg() to decide
whether to append a newline needs to be removed. The function
should always append a newline, which was the case before the
off-by-one fix, because strbuf_add_wrapped_text() never returns a
value of wraplen; when it returns wraplen, the string does not end
with a newline, so this caller needs to add one anyway.
[1] 14e1a4e1ff utf8: fix off-by-one
wrapping of text
Signed-off-by: Steffen Prohaska <prohaska@zib.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Consistently use a single space before and after the "=" (or ":=", "+=",
etc.) in assignments to make macros. Granted, this was not a big deal,
but I did find the needless inconsistency quite distracting.
Signed-off-by: Stefano Lattarini <stefano.lattarini@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Use TAB's for indentation, and wrap overlong lines.
Put the closing ' at the beginning of the line.
Signed-off-by: Torsten Bögershausen <tboegi@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Checking and comparing the number of line in check.list and check.cvsCount
had been replaced by comparing both files line by line.
Rename the filenames to make clear which is expected and which is actual:
check.list -> list.expected
check.cvsCount-> list.actual
Signed-off-by: Torsten Bögershausen <tboegi@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Use "git ls-tree --name-only" which does not need a sed to filter out the sha
Signed-off-by: Torsten Bögershausen <tboegi@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Add missing && at 2 places
Re-formated the sub-shell parantheses (coding style)
Added missing ] in the test_expect_success header at 2 places
Signed-off-by: Torsten Bögershausen <tboegi@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Redirection should not have SP before the filename
(i.e. ">out", not "> out").
Signed-off-by: Torsten Bögershausen <tboegi@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
check_end_tree():
- Instead of counting lines using wc in expectCount and cvsCount:
Sort and compare the files byte by byte with test_cmp,
which is more exact and easier to debug
- Chain all shell comands together using &&
check_end_full_tree()
- Instead of counting lines using wc in expectCount, cvsCount and gitCount:
Sort and compare the files byte by byte with test_cmp,
which is more exact and easier to debug
- Break the test using two conditions anded together with -a
into to call to test_cmp
- Chain all shell comands together using &&
Signed-off-by: Torsten Bögershausen <tboegi@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
On some systems sed allows the usage of e.g.
sed -i -e "s/line1/line2/" afile
to edit the file "in place".
Other systems don't allow that: one observed behaviour is that
sed -i -e "s/line1/line2/" afile
creates a backup file called afile-e, which breaks the test.
As sed -i is not part of POSIX, avoid it.
Signed-off-by: Torsten Bögershausen <tboegi@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
"git diff --stat" miscounted the total number of changed lines when
binary files were involved and hidden beyond --stat-count. It also
miscounted the total number of changed files when there were
unmerged paths.
* lt/diff-stat-show-0-lines:
t4049: refocus tests
diff --shortstat: do not count "unmerged" entries
diff --stat: do not count "unmerged" entries
diff --stat: move the "total count" logic to the last loop
diff --stat: use "file" temporary variable to refer to data->files[i]
diff --stat: status of unmodified pair in diff-q is not zero
test: add failing tests for "diff --stat" to t4049
Fix "git diff --stat" for interesting - but empty - file changes
When an object has already been exported (and thus is in the marks) it's
flagged as SHOWN, so it will not be exported again, even if in a later
time it's exported through a different ref.
We don't need the object to be exported again, but we want the ref
updated, which doesn't happen.
Since we can't know if a ref was exported or not, let's just assume that
if the commit was marked (flags & SHOWN), the user still wants the ref
updated.
IOW: If it's specified in the command line, it will get updated,
regardless of whether or not the object was marked.
So:
% git branch test master
% git fast-export $mark_flags master
% git fast-export $mark_flags test
Would export 'test' properly.
Additionally, this fixes issues with remote helpers; now they can push
refs whose objects have already been exported, and a few other issues as
well. Update the tests accordingly.
Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
They have been marked as UNINTERESTING for a reason, lets respect
that. Currently the first ref is handled properly, but not the
rest. Assuming that all the refs point at the same commit in the
following example:
% git fast-export master ^uninteresting ^foo ^bar
reset refs/heads/bar
from :0
reset refs/heads/foo
from :0
reset refs/heads/uninteresting
from :0
% git fast-export ^uninteresting ^foo ^bar master
reset refs/heads/master
from :0
reset refs/heads/bar
from :0
reset refs/heads/foo
from :0
Clearly this is wrong; the negative refs should be ignored.
After this patch:
% git fast-export ^uninteresting ^foo ^bar master
# nothing
% git fast-export master ^uninteresting ^foo ^bar
# nothing
And even more, it would only happen if the ref is pointing to exactly
the same commit, but not otherwise:
% git fast-export ^next next
reset refs/heads/next
from :0
% git fast-export ^next next^{commit}
# nothing
% git fast-export ^next next~0
# nothing
% git fast-export ^next next~1
# nothing
% git fast-export ^next next~2
# nothing
The reason this happens is that before traversing the commits,
fast-export checks if any of the refs point to the same object, and any
duplicated ref gets added to a list in order to issue 'reset' commands
after the traversing. Unfortunately, it's not even checking if the
commit is flagged as UNINTERESTING. The fix of course, is to check it.
However, in order to do it properly we need to get the UNINTERESTING
flag from the command line, not from the commit object, because
"^foo bar" will mark the commit 'bar' uninteresting if foo and bar
points at the same commit. rev_cmdline_info, which was introduced
exactly to handle this situation, contains all the information we
need for get_tags_and_duplicates(), plus the ref flag. This way the
rest of the positive refs will remain untouched; it's only the
negative ones that change in behavior.
Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
