git-rev-parse HEAD^1 would fail, because of an off-by-one bug (but HEAD^
would yield the expected result). Also, when the parent does not exist, do
not silently return an incorrect SHA1. Of course, this no longer applies
to git-rev-parse alone, but every user of get_sha1().
While at it, add a test.
Signed-off-by: Johannes Schindelin <Johannes.Schindelin@gmx.de>
Signed-off-by: Junio C Hamano <junkio@cox.net>
When built with NO_OPENSSL, rev-list --merge-order does not
work, causing t6001 test to fail. Detect that and skip this
test to allow continuing to the rest of the tests.
Signed-off-by: Junio C Hamano <junkio@cox.net>
Test t6002 unnecessarily fails when bc is a bit older than average.
Signed-off-by: Johannes.Schindelin <Johannes.Schindelin@gmx.de>
Signed-off-by: Junio C Hamano <junkio@cox.net>
The check that the source is ahead of the destination incorrectly expects
pop_most_recent_commit() to gracefully handle an empty list.
Fix by just checking the list itself, rather than the return value of the
pop function.
[jc: I did the test script that demonstrated the problem]
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
We use 'A' for added files instead of 'N' to make the it
visually easier to distinguish from 'M' now.
While we are at it, make the test scripts executable. Yes, I
know it does not matter because t/Makefile runs them explicitly
with "sh tXXXX-blah.sh", but being consistent is always better.
Signed-off-by: Junio C Hamano <junkio@cox.net>
Add --exclude-per-directory=<name> option that specifies a file
to contain exclude patterns local to that directory and its
subdirectories. Update the exclusion logic to be able to say
"include files that match this more specific pattern, even
though later exclude patterns may match them". Also enhances
that a pattern can contain '/' in which case fnmatch is called
with FNM_PATHNAME flag to match the entire path.
Signed-off-by: Junio C Hamano <junkio@cox.net>
The output from a failure case had the test description message
and the first line of the actual test script concatenated on the
same line, which was ugly. Correct the output routine a bit to
make it more readable.
Signed-off-by: Junio C Hamano <junkio@cox.net>
Signed-off-by: Junio C Hamano <junkio@cox.net>
The parsing code had a bug that failed to recognize an
incomplete line at the end of a fragment, and the fragment
application code had a comparison bug to recognize such. Fix
them to handle incomplete lines correctly.
Add a test script for patches with various combinations of
complete and incomplete lines to make sure the fix works.
Signed-off-by: Junio C Hamano <junkio@cox.net>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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 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>
This test case demonstrates a problem with --merge-order.
A
|
B
|\
C D
|/
E
|
F
git-rev-list --merge-order A B doesn't produce the expected output of
A
B
D
C
E
F
The problem is fixed by a subsequent patch.
Signed-off-by: Jon Seymour <jon.seymour@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This trivial patch removes the semicolon as the sed seperator in the t/t6000-lib.sh test script
and replaces it with white space. This makes BSD sed(1) much happier.
Signed-off-by: Mark Allen <mrallen1@yahoo.com>
Signed-off-by: Jon Seymour <jon.seymour@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This patch introduces some unit tests for the git-rev-list --bisect functionality.
Signed-off-by: Jon Seymour <jon.seymour@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Functions that are useful to other t6xxx testcases are moved into t6000-lib.sh
To use these functions in a test case, use a test-case pre-amble like:
. ./test-lib.sh
. ../t6000-lib.sh # t6xxx specific functions
Signed-off-by: Jon Seymour <jon.seymour@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This patch fixes up the t/t5300 unit tests which were broken by the changes in:
Make the name of a pack-file depend on the objects packed there-in.
Signed-off-by: Jon Seymour <jon.seymour@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This patch removes an unnecessary sort from the t6001 testcase.
Sorts were previously necessary when testing non --merge-order cases
because the output order wasn't entirely deterministic unless commit
date was fixed.
However, commit dates are now fixed, so the need for a sort has
disappeared. So the sort has been removed.
Signed-off-by: Jon Seymour <jon.seymour@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This fix fixes a t/t6001 test case break that was hidden by a bug in the
test case infrastructure.
Signed-off-by: Jon Seymour <jon.seymour@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Junio discovered a problem where an actual test case break was hidden
because pipelines are not handled properly by the test infrastructure in
t6001.
This patch fixes the broken infrastructure (and demonstrates the break
explicitly).
A subsequent patch in this series will fix the test case so that it
doesn't fail.
Signed-off-by: Jon Seymour <jon.seymour@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This patch makes --merge-order produce the same list as git-rev-list
without --merge-order specified.
In particular, if the graph looks like this:
A
| B
|/
C
|
D
The both git-rev-list B ^A and git-rev-list --merge-order will produce B.
The unit tests have been changed to reflect the fact that the prune
points are now formally part of the start list that is used to perform
the --merge-order sort.
That is: git-rev-list --merge-order A ^D used to produce
= A
| C
It now produces:
^ A
| C
Signed-off-by: Jon Seymour <jon.seymour@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Added a test case that shows that --merge-order doesn't produce the
correct result in the following case.
A
|
| B
|/
C
|
D
git-rev-list --merge-order A ^B should produce just A. Instead
it produces BCD.
A subsequent patch will fix this defect.
Signed-off-by: Jon Seymour <jon.seymour@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
It now always read from standard input and rejects non-flag
arguments.
Signed-off-by: Junio C Hamano <junkio@cox.net>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Given a list of <pack>.idx files, this command validates the
index file and the corresponding .pack file for consistency.
This patch also uses the same validation mechanism in fsck-cache
when the --full flag is used.
During normal operation, sha1_file.c verifies that a given .idx
file matches the .pack file by comparing the SHA1 checksum
stored in .idx file and .pack file as a minimum sanity check.
We may further want to check the pack signature and version when
we map the pack, but that would be a separate patch.
Earlier, errors to map a pack file was not flagged fatal but led
to a random fatal error later. This version explicitly die()s
when such an error is detected.
Signed-off-by: Junio C Hamano <junkio@cox.net>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This replaces sha1sum(1) with sum(1) in t/t1002. GNU sum(1) runs in
"BSD compatibility" mode by default, and not all systems have GNU
coreutils. On any system without GNU coreutils (or sha1sum) t1002 will
fail. This patch should make t1002 complete successfully everywhere
that sum(1) runs.
I've tested this on Darwin and Linux; it works on both platforms.
Signed-off-by: Mark Allen <mrallen1@yahoo.com>
Acked-by: Junio C Hamano <junkio@cox.net>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
GIT_OBJECT_DIRECTORY and GIT_ALTERNATE_OBJECT_DIRECTORIES can
have the "pack" subdirectory that houses "packed GIT" files
produced by git-pack-objects (e.g. .git/objects/pack/foo.pack
and .git/objects/pack/foo.idx; always store them as pairs). The
following functions in sha1_file.c can then read object contents
from such packed file:
- sha1_object_info()
- has_sha1_file()
- read_sha1_file()
Signed-off-by: Junio C Hamano <junkio@cox.net>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Packed delta files created by git-pack-objects seems to be the
way to go, and existing "delta" object handling code has exposed
the object representation details to too many places. Remove it
while we refactor code to come up with a proper interface in
sha1_file.c.
Signed-off-by: Junio C Hamano <junkio@cox.net>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This finishes the initial round of git-pack-object /
git-unpack-object pair. They are now good enough to be used as
a transport medium:
- Fix delta direction in pack-objects; the original was
computing delta to create the base object from the object to
be squashed, which was quite unfriendly for unpacker ;-).
- Add a script to test the very basics.
- Implement unpacker for both regular and deltified objects.
Signed-off-by: Junio C Hamano <junkio@cox.net>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
An earlier change to optimize directory-file conflict check
broke what "read-tree --emu23" expects. This is fixed by this
commit.
(1) Introduces an explicit flag to tell add_cache_entry() not to
check for conflicts and use it when reading an existing tree
into an empty stage --- by definition this case can never
introduce such conflicts.
(2) Makes read-cache.c:has_file_name() and read-cache.c:has_dir_name()
aware of the cache stages, and flag conflict only with paths
in the same stage.
Signed-off-by: Junio C Hamano <junkio@cox.net>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This adds more tests for --emu23. One is to show how it can
carry forward more local changes than the straightforward
two-way fast forward, and another is to show the recent
overeager optimization of directory/file conflict check broke
things, which will be fixed in the next commit.
Signed-off-by: Junio C Hamano <junkio@cox.net>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
git-rev-list --merge-order is omitting one of the roots when
displaying a merge containing two distinct roots.
A subsequent patch will fix the problem.
Signed-off-by: Jon Seymour <jon.seymour@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This adds tests (which also serves demonstration) for the --stat
and --summary flags to the git-apply command.
Signed-off-by: Junio C Hamano <junkio@cox.net>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
1. --merge-order doesn't deal properly with a specified head that has no parent
* FAIL 11: head has no parent
2. --merge-order doesn't deal properly with arguments of the form
head ^head
* FAIL 30: head ^head --merge-order git-rev-list --merge-order
--show-breaks a3 ^a3
3. if one of the specified heads is reachable from the other, the
head gets printed twice and this causes problems for upcoming
versions of gitk. This is true for both --merge-order and non
--merge-order style of invocations.
* FAIL 24: one specified head reachable from another a4, c3, --merge-order
* FAIL 26: one specified head reachable from another a4, c3, no --merge-order
* FAIL 27: one specified head reachable from another c3, a4, no --merge-order
4. --merge-order aborts with commits that list the same parent twice...it should handle it more gracefully.
* no longer unit testable
5. broken interaction between --merge-order and --max-age
previously posted as:
"[PATCH 1/2] Test case that demonstrates problem with --merge-order, --max-age interaction"
* FAIL 23: --max-age=c3, --merge-order
Later patches in this patch set fix these problems.
Signed-off-by: Jon Seymour <jon.seymour@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Patch for a completely rewritten file detected by the -B flag
was shown as a pair of creation followed by deletion in earlier
versions. This was an misguided attempt to make reviewing such
a complete rewrite easier, and unnecessarily ended up confusing
git-apply. Instead, show the entire contents of old version
prefixed with '-', followed by the entire contents of new
version prefixed with '+'. This gives the same easy-to-review
for human consumer while keeping it a single, regular
modification patch for machine consumption, something that even
GNU patch can grok.
Signed-off-by: Junio C Hamano <junkio@cox.net>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Like diff-tree, this patch makes -C option for diff-* brothers
to use only pre-image of modified files as rename/copy detection
by default. Give --find-copies-harder to use unmodified files
to find copies from as well.
This also fixes "diff-files -C" problem earlier noticed by
Linus. It was feeding the null sha1 even when the file in the
work tree was known to match what is in the index file. This
resulted in diff-files showing everything in the project.
Signed-off-by: Junio C Hamano <junkio@cox.net>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Unset TZ to force GMT in test #4 and add a set of parens around
the length function in the awk script.
Signed-off-by: Mark Allen <mrallen1@yahoo.com>
Acked-by: Rene Scharfe <rene.scharfe@lsrfire.ath.cx>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This patch teaches read-tree 3-way merge that, when only "the
other tree" changed a path, and if the index file already has
the same change, we are not in a situation that would clobber
the index and the work tree, and lets the merge succeed; this is
case #14ALT in t1000 test. It does not change the result of the
merge, but prevents it from failing when it does not have to.
Signed-off-by: Junio C Hamano <junkio@cox.net>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This adds #3ALT rule (and #2ALT rule for symmetry) to the
read-tree 3-way merge logic that collapses paths that are added
only in one branch and not in the other internally.
This makes --emu23 to succeed in the last remaining case where
the pure 2-way merge succeeded and earlier one failed. Running
diff between t1001 and t1005 test scripts shows that the only
difference between the two is that --emu23 can leave the states
into separate stages so that the user can use usual 3-way merge
resolution techniques to carry forward the local changes when
pure 2-way merge would have refused to run.
Signed-off-by: Junio C Hamano <junkio@cox.net>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This fixes too strong index requirement 3-way merge enforces in
one case: the same file is added in both branches.
In this case, the original code insisted that if the index file
has that path, it must match our branch and be up-to-date.
However in this particular case, it only has to match it, and
can be dirty. We just need to make sure that we keep the
work-tree copy instead of checking out the merge result.
The resolution of such a path, however, cannot be left to
outside script, because we will not keep the original stage0
entries for unmerged paths when read-tree finishes, and at that
point, the knowledge of "if we resolve it to match the new file
added in both branches, the merge succeeds and the work tree
would not lose information, but we should _not_ update the work
tree from the resulting index file" is lost. For this reason,
the now code needs to resolve this case (#5ALT) internally.
This affects some existing tests in the test suite, but all in
positive ways. In t1000 (3-way test), this #5ALT case now gets
one stage0 entry, instead of an identical stage2 and stage3
entry pair, for such a path, and one test that checked for merge
failure (because the test assumed the "stricter-than-necessary"
behaviour) does not have to fail anymore. In t1005 (emu23
test), two tests that involves a case where the work tree
already had a change introduced in the upstream (aka "merged
head"), the merge succeeds instead of failing.
Signed-off-by: Junio C Hamano <junkio@cox.net>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This new flag causes two-way fast forward to internally use the
three-way merge mechanism. This behaviour is intended to offer
a better fast forward semantics when used in a dirty work tree.
The new test t1005 is parallel to the existing t1001 "pure
2-way" tests, but some parts that are commented out would fail.
These failures are due to three-way merge enforcing too strict
index requirements for cases that could succeed. This problem
will be addressed by later patches.
Without even changing three-way mechanism, the --emu23 two-way
fast forward already gives the user an easier-to-handle merge
result when a file that "merged head" updates has local
modifications. This is demonstrated as "case 16" test in t1005.
Signed-off-by: Junio C Hamano <junkio@cox.net>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This is in preparation for "2-way fast-forward emulated with
3-way mechanism" series. It does not change what the tests for
pure 2-way do. It only changes how it tests things, to make
reviewing of differences of the two tests easier in later steps.
Signed-off-by: Junio C Hamano <junkio@cox.net>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This adds a set of tests to make sure that requirements on
existing cache entries are checked when a read-tree -m 3-way
merge is run with an already populated index file.
Signed-off-by: Junio C Hamano <junkio@cox.net>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This updates t1000 (basic 3-way merge test) to check the merge
results for both successful cases (earlier one checked the
result for only one of them). Also fixes typos in t1002 that
broke '&&' chain, potentially missing a test failure before the
chain got broken.
Signed-off-by: Junio C Hamano <junkio@cox.net>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This patch fixes three bugs in --merge-order support
* mark_ancestors_uninteresting was unnecessarily exponential which
caused a problem when a commit with no parents was merged near the
head of something like the linux kernel
* removed a spurious statement from find_base which wasn't
apparently causing problems now, but wasn't correct either.
* removed an unnecessarily strict check from find_base_for_list
that causes a problem if git-rev-list commit ^parent-of-commit
is specified.
* added some unit tests which were accidentally omitted from
original merge-order patch
The fix to mark_ancestors_uninteresting isn't an optimal fix - a full
graph scan will still be performed in this case even though it is
not strictly required. However, a full graph scan is linear
and still no worse than git-rev-list HEAD which runs in less than 2
seconds on a warm cache.
Signed-off-by: Jon Seymour <jon.seymour@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This implements the "never lose the current cache information or
the work tree state, but favor a successful merge over merge
failure" principle in the fast-forward two-tree merge operation.
It comes with a set of tests to cover all the cases described in
the case matrix found in the new documentation.
Signed-off-by: Junio C Hamano <junkio@cox.net>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
The updated git-tread-tree -m is more strict in that it wants to
have the original cache up to date. The initial part of t1000
(merge tests from hell) fails due to it.
Signed-off-by: Junio C Hamano <junkio@cox.net>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Clearly even Junio felt git "rename" header lines should say "from/to"
instead of "old/new", since he wrote the documentation that way.
This way it also matches "copy".
git-apply will accept both versions, at least for a while.
This addresses a concern raised by Jason McMullan in the mailing
list discussion. After retrieving and storing a potentially
deltified object, pull logic tries to check and fulfil its delta
dependency. When the pull procedure is killed at this point,
however, there was no easy way to recover by re-running pull,
since next run would have found that we already have that
deltified object and happily reported success, without really
checking its delta dependency is satisfied.
This patch introduces --recover option to git-*-pull family
which causes them to re-validate dependency of deltified objects
we are fetching. A new test t5100-delta-pull.sh covers such a
failure mode.
Signed-off-by: Junio C Hamano <junkio@cox.net>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Johannes Schindelin