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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>
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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.
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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>
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git-tar-tree: remove tests of long path handling out of t5000-tar-tree.sh
and make test script cope with tar programs displaying file modification
date as hh:mm (newer variants show it as hh:mm:ss).
This makes the test cover only basic functionality that is expected to
be handled even by older tar programs. Tests for long filenames (which
require pax extended headers) can be added separately.
I ran this test successfully with GNU tar 1.13, 1.14 and 1.15.1.
Signed-off-by: Rene Scharfe <rene.scharfe@lsrfire.ath.cx>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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add a simple test case.
Signed-off-by: Rene Scharfe <rene.scharfe@lsrfire.ath.cx>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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This fixes the problem with ls-tree which failed to show
"drivers/char" directory when the user asked for "drivers/char/"
from the command line. At the same time, if "drivers/char" were
a non directory, "drivers/char/" would not show it. This is
consistent with the way diffcore-pathspec has been recently
fixed.
This adds back the diffcore-pathspec test,dropped when my
earlier diffcore-pathspec fix was rejected.
Signed-off-by: Junio C Hamano <junkio@cox.net>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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There were duplicate script pieces to help comparing diff
output, which this patch consolidates into the t/diff-lib.sh
library.
Signed-off-by: Junio C Hamano <junkio@cox.net>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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A new diffcore transformation, diffcore-break.c, is introduced.
When the -B flag is given, a patch that represents a complete
rewrite is broken into a deletion followed by a creation. This
makes it easier to review such a complete rewrite patch.
The -B flag takes the same syntax as the -M and -C flags to
specify the minimum amount of non-source material the resulting
file needs to have to be considered a complete rewrite, and
defaults to 99% if not specified.
As the new test t4008-diff-break-rewrite.sh demonstrates, if a
file is a complete rewrite, it is broken into a delete/create
pair, which can further be subjected to the usual rename
detection if -M or -C is used. For example, if file0 gets
completely rewritten to make it as if it were rather based on
file1 which itself disappeared, the following happens:
The original change looks like this:
file0 --> file0' (quite different from file0)
file1 --> /dev/null
After diffcore-break runs, it would become this:
file0 --> /dev/null
/dev/null --> file0'
file1 --> /dev/null
Then diffcore-rename matches them up:
file1 --> file0'
The internal score values are finer grained now. Earlier
maximum of 10000 has been raised to 60000; there is no user
visible changes but there is no reason to waste available bits.
Signed-off-by: Junio C Hamano <junkio@cox.net>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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The score number that follow R/C status were parsed but the
parse pointer was not updated, causing the entire line to become
unrecognized. This patch fixes this problem.
There was a test missing to catch this breakage, which this
commit adds as t4009-diff-rename-4.sh. The diff-raw tests used
in related t4005-diff-rename-2.sh (the same test without -z) and
t4007-rename-3.sh were stricter than necessarily, despite that
the comment for the tests said otherwise. This patch also
corrects them.
The documentation is updated to say that the status can
optionally be followed by a number called "score"; it does not
have to stay similarity index forever and there is no reason to
limit it only to C and R.
Signed-off-by: Junio C Hamano <junkio@cox.net>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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This is a complete rewrite of ls-tree to make it behave more
like what "/bin/ls -a" does in the current working directory.
Namely, the changes are:
- Unlike the old ls-tree behaviour that used paths arguments to
restrict output (not that it worked as intended---as pointed
out in the mailing list discussion, it was quite incoherent),
this rewrite uses paths arguments to specify what to show.
- Without arguments, it implicitly uses the root level as its
sole argument ("/bin/ls -a" behaves as if "." is given
without argument).
- Without -r (recursive) flag, it shows the named blob (either
file or symlink), or the named tree and its immediate
children.
- With -r flag, it shows the named path, and recursively
descends into it if it is a tree.
- With -d flag, it shows the named path and does not show its
children even if the path is a tree, nor descends into it
recursively.
This is still request-for-comments patch. There is no mailing
list consensus that this proposed new behaviour is a good one.
The patch to t/t3100-ls-tree-restrict.sh illustrates
user-visible behaviour changes. Namely:
* "git-ls-tree $tree path1 path0" lists path1 first and then
path0. It used to use paths as an output restrictor and
showed output in cache entry order (i.e. path0 first and then
path1) regardless of the order of paths arguments.
* "git-ls-tree $tree path2" lists path2 and its immediate
children but having explicit paths argument does not imply
recursive behaviour anymore, hence paths/baz is shown but not
paths/baz/b.
Signed-off-by: Junio C Hamano <junkio@cox.net>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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This changes the way how pathspec is used in the three diff-*
brothers. Earlier, they tried to grab as much information from
the original input and used pathspec to limit the output. This
version uses pathspec upfront to narrow the world diffcore
operates in, so "git-diff-* <arguments> some-directory" does not
look at things outside the specified subtree when finding
rename/copy or running pickaxe.
Since diff-tree already takes this view and does not feed
anything outside the specified directotires to begin with, this
patch does not have to touch that command.
Signed-off-by: Junio C Hamano <junkio@cox.net>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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Earier version of diffcore-rename used to keep unmodified
filepair in its output so that the last stage of the processing
that tells renames from copies can make all of rename/copy to
copies. However this had a bad interaction with other diffcore
filters that wanted to run after diffcore-rename, in that such
unmodified filepair must be retained for proper distinction
between renames and copies to happen.
This patch fixes the problem by changing the way diffcore-rename
records the information needed to distinguish "all are copies"
case and "the last one is a rename" case.
Signed-off-by: Junio C Hamano <junkio@cox.net>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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Actually use GIT_COMMITTER_DATE in git-commit-tree.
(It used to mistakenly re-use the author date)
Add test-case for it.
Signed-off-by: Rene Scharfe <rene.scharfe@lsrfire.ath.cx>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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Use SP as the column separator except the ones before path which
uses TAB, to make the output format consistent across ls-* and
diff-* commands.
Signed-off-by: Junio C Hamano <junkio@cox.net>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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Enhance git-ls-tree to allow optional 'match paths' that
restricts the output of git-ls-tree. This is useful to retrieve
a single file's SHA1 out of a tree without creating an index.
[JC: I added the test case]
Signed-off-by: Junio C Hamano <junkio@cox.net>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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This is the remainder of testcase fix by Mark Allen to make them
work on his Darwin box. I was using "xargs -r" (GNU) where it
was not needed, sed -ne '/^\(author\|committer\)/s|>.*|>|p'
where some sed does not know what to do with '\|', and also
"cmp - file" to compare standard input with a file, which his
cmp does not support.
Signed-off-by: Junio C Hamano <junkio@cox.net>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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This fixes another bug.
- Mode-only changes were pruned incorrectly from the output.
- Added test to catch the above problem.
- Normalize rename/copy similarity score in the diff-raw output
to per-cent, no matter what scale we internally use.
Signed-off-by: Junio C Hamano <junkio@cox.net>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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The earlier test was relying on the fact that dotfiles do not
appear in the output to prepare expected test results, which
inevitably got broken when we started handling dotfiles. Change
the test to be honest about what "--other" file it creates.
The problem was originally pointed out by Mark Allen.
Signed-off-by: Junio C Hamano <junkio@cox.net>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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This is what Linus wrote, improving what David Greaves
originally submitted.
I just added a test case and verified the patch works.
Author: David Greaves <david@dgreaves.com>
Author: Linus Torvalds <torvalds@osdl.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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Earlier implementation had a major screw-up in the memory
management area. Rename/copy logic sometimes borrowed a pointer
to a structure without any provision for downstream to determine
which pointer is shared and which is not. This resulted in the
later clean-up code to sometimes double free such structure,
resulting in a segfault. This made -M and -C useless.
Another problem the earlier implementation had was that it
reordered the patches, and forced the logic to differentiate
renames and copies to depend on that particular order. This
problem was fixed by teaching rename/copy detection logic not to
do any reordering, and rename-copy differentiator not to depend
on the order of the patches. The diffs will leave rename/copy
detector in the same destination path order as the patch that
was fed into it. Some test vectors have been reordered to
accommodate this change.
It also adds a sanity check logic to the human-readable diff-raw
output to detect paths with embedded TAB and LF characters,
which cannot be expressed with that format. This idea came up
during a discussion with Chris Wedgwood.
Signed-off-by: Junio C Hamano <junkio@cox.net>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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For later stages to reorder patches, pruning logic and rename detection
logic should not decide which delete to discard (because another entry
said it will take over the file as a rename) until the very end.
Also fix some tests that were assuming the earlier "last one is rename
or keep everything else is copy" semantics of diff-raw format, which no
longer is true.
Signed-off-by: Junio C Hamano <junkio@cox.net>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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This changes the diff-raw format again, following the mailing
list discussion. The new format explicitly expresses which one
is a rename and which one is a copy.
The documentation and tests are updated to match this change.
Signed-off-by: Junio C Hamano <junkio@cox.net>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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The rename/copy detection logic in earlier round was only good
enough to show patch output and discussion on the mailing list
about the diff-raw format updates revealed many problems with
it. This patch fixes all the ones known to me, without making
things I want to do later impossible, mostly related to patch
reordering.
(1) Earlier rename/copy detector determined which one is rename
and which one is copy too early, which made it impossible
to later introduce diffcore transformers to reorder
patches. This patch fixes it by moving that logic to the
very end of the processing.
(2) Earlier output routine diff_flush() was pruning all the
"no-change" entries indiscriminatingly. This was done due
to my false assumption that one of the requirements in the
diff-raw output was not to show such an entry (which
resulted in my incorrect comment about "diff-helper never
being able to be equivalent to built-in diff driver"). My
special thanks go to Linus for correcting me about this.
When we produce diff-raw output, for the downstream to be
able to tell renames from copies, sometimes it _is_
necessary to output "no-change" entries, and this patch
adds diffcore_prune() function for doing it.
(3) Earlier diff_filepair structure was trying to be not too
specific about rename/copy operations, but the purpose of
the structure was to record one or two paths, which _was_
indeed about rename/copy. This patch discards xfrm_msg
field which was trying to be generic for this wrong reason,
and introduces a couple of fields (rename_score and
rename_rank) that are explicitly specific to rename/copy
logic. One thing to note is that the information in a
single diff_filepair structure _still_ does not distinguish
renames from copies, and it is deliberately so. This is to
allow patches to be reordered in later stages.
(4) This patch also adds some tests about diff-raw format
output and makes sure that necessary "no-change" entries
appear on the output.
Signed-off-by: Junio C Hamano <junkio@cox.net>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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Earlier round was not treating symbolic links carefully enough,
and would have produced diff output that renamed/copied then
edited the contents of a symbolic link, which made no practical
sense. Change it to detect only pure renames.
Signed-off-by: Junio C Hamano <junkio@cox.net>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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Update the diff-raw format as Linus and I discussed, except that
it does not use sequence of underscore '_' letters to express
nonexistence. All '0' mode is used for that purpose instead.
The new diff-raw format can express rename/copy, and the earlier
restriction that -M and -C _must_ be used with the patch format
output is no longer necessary. The patch makes -M and -C flags
independent of -p flag, so you need to say git-whatchanged -M -p
to get the diff/patch format.
Updated are both documentations and tests.
Signed-off-by: Junio C Hamano <junkio@cox.net>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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Don't do "-u0", use "--unified=0" which is accepted by modern GNU
diff versions.
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This patch extends diff-cache and diff-files to report the
unmodified files to diff-core as well when -C (copy detection)
is in effect, so that the unmodified files can also be used as
the source candidates. The existing test t4003 has been
extended to cover this case.
Signed-off-by: Junio C Hamano <junkio@cox.net>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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This introduces the diff-core, the layer between the diff-tree
family and the external diff interface engine. The calls to the
interface diff-tree family uses (diff_change and diff_addremove)
have not changed and will not change. The purpose of the
diff-core layer is to provide an infrastructure to transform the
set of differences sent from the applications, before sending
them to the external diff interface.
The recently introduced rename detection code has been rewritten
to use the diff-core facility. When applications send in
separate creates and deletes, matching ones are transformed into
a single rename-and-edit diff, and sent out to the external diff
interface as such.
This patch also enhances the rename detection code further to be
able to detect copies. Currently this happens only as long as
copy sources appear as part of the modified files, but there
already is enough provision for callers to report unmodified
files to diff-core, so that they can be also used as copy source
candidates. Extending the callers this way will be done in a
separate patch.
Please see and marvel at how well this works by trying out the
newly added t/t4003-diff-rename-1.sh test script.
Signed-off-by: Junio C Hamano <junkio@cox.net>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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The version of wc I have (GNU textutils-2.1) puts spaces at the beginning
of lines. This patch should work for any version of wc.
Signed-off-by: Daniel Barkalow <barkalow@iabervon.org>
Acked-by: Junio C Hamano <junkio@cox.net>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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The same check we added earlier to update-cache to catch ENOTDIR
turns out to be missing from diff-files. This causes a
difference not being reported when you have DF/DF (a file in a
subdirectory) in the cache and DF is a file on the filesystem.
Signed-off-by: Junio C Hamano <junkio@cox.net>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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This adds and reorganizes some tests for diff-tree
Signed-off-by: Junio C Hamano <junkio@cox.net>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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Add '-R' flag to diff-tree, and change the test subdirectory
shell files to be executable (something that Junio couldn't
get me to do through the pure patch with my current patch
handling infrastructure).
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This cleans up the way calls are made into the diff core from diff-tree
family and diff-helper. Earlier, these programs had "if
(generating_patch)" sprinkled all over the place, but those ugliness are
gone and handled uniformly from the diff core, even when not generating
patch format.
This also allowed diff-cache and diff-files to acquire -R
(reverse) option to generate diff in reverse. Users of
diff-tree can swap two trees easily so I did not add -R there.
[ Linus' note: I'll add -R to "diff-tree" too, since a "commit
diff" doesn't have another tree to switch around: the other
tree is always the parent(s) of the commit ]
Also -M<digits-as-mantissa> suggestion made by Linus has been
implemented.
Documentation updates are also included.
Signed-off-by: Junio C Hamano <junkio@cox.net>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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With -u flag, git-checkout-cache picks up the stat information
from newly created file and updates the cache. This removes the
need to run git-update-cache --refresh immediately after running
git-checkout-cache.
Signed-off-by: Junio C Hamano <junkio@cox.net>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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This rips out the rename detection engine from diff-helper and moves it
to the diff core, and updates the internal calling convention used by
diff-tree family into the diff core. In order to give the same option
name to diff-tree family as well as to diff-helper, I've changed the
earlier diff-helper '-r' option to '-M' (stands for Move; sorry but the
natural abbreviation 'r' for 'rename' is already taken for 'recursive').
Although I did a fair amount of test with the git-diff-tree with
existing rename commits in the core GIT repository, this should still be
considered beta (preview) release. This patch depends on the diff-delta
infrastructure just committed.
This implements almost everything I wanted to see in this series of
patch, except a few minor cleanups in the calling convention into diff
core, but that will be a separate cleanup patch.
Signed-off-by: Junio C Hamano <junkio@cox.net>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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This test would have caught the strbuf eof condition gotcha,
hopefully fixed with my previous patch.
Signed-off-by: Junio C Hamano <junkio@cox.net>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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This implements the output format suggested by Linus in
<Pine.LNX.4.58.0505161556260.18337@ppc970.osdl.org>, except the
imaginary diff option is spelled "diff --git" with double dashes as
suggested by Matthias Urlichs.
Signed-off-by: Junio C Hamano <junkio@cox.net>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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The documentation of the test harness still refer to old
numbering and also contains an obvious typo.
Also "make test" should be run after making sure we have built
all binaries, since test is designed to test the newly built
ones.
Signed-off-by: Junio C Hamano <junkio@cox.net>
Signed-off-by: Petr Baudis <pasky@ucw.cz>
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This test comes from "[PATCH 2/2] The core GIT tests: recent additions and
fixes" but couldn't be included before since it depended on the modechange
diff output changes.
Signed-off-by: Junio C Hamano <junkio@cox.net>
Signed-off-by: Petr Baudis <pasky@ucw.cz>
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This is an adaptation to the test framework of a historic test
that was used before three way merge form of read-tree was
introduced, and subsequently used to validate the read-tree -m
merge works correctly. It covers all the tricky cases known
back then and also have been updated to cover conflicting
files/directories cases since then.
Signed-off-by: Junio C Hamano <junkio@cox.net>
Signed-off-by: Petr Baudis <pasky@ucw.cz>
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mv t/t2010-update-cache-badpath.sh t/t2100-update-cache-badpath.sh
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This test makes sure that use of deprecated environment variables still
works, using both new and old names makes new one take
precedence, and GIT_DIR and GIT_ALTERNATE_OBJECT_DIRECTORIES mechanisms
work.
Signed-off-by: Junio C Hamano <junkio@cox.net>
Signed-off-by: Petr Baudis <pasky@ucw.cz>
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First digit: "family", e.g. the absolute basics and global stuff (0),
the basic db-side commands (read-tree, write-tree, commit-tree), the
basic working-tree-side commands (checkout-cache, update-cache), the
other basic commands (ls-files), the diff commands, the pull commands,
exporting commands, revision tree commands...
Second digit: the particular command we are testing
Third digit: (optionally) the particular switch or group of switches
we are testing
Freeform part: commandname-details
Described in the README.
mv t1000-checkout-cache.sh t2000-checkout-cache-clash.sh
mv t1001-checkout-cache.sh t2001-checkout-cache-clash.sh
mv t0200-update-cache.sh t2010-update-cache-badpath.sh
mv t0400-ls-files.sh t3000-ls-files-others.sh
mv t0500-ls-files.sh t3010-ls-files-killed.sh
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This adds instruction for running tests, and writing new tests.
Signed-off-by: Junio C Hamano <junkio@cox.net>
Updated to the new tidied up output style.
Signed-off-by: Petr Baudis <pasky@ucw.cz>
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Exposing test_expect_success and test_expect_failure turns out
to be enough for the test scripts and there is no need for
exposing test_ok or test_failure. This patch cleans it up and
fixes the users of test_ok and test_failure.
Also test scripts have acquired a new command line flag
'--immediate' to cause them to exit upon the first failure.
This is useful especially during the development of a new test.
Signed-off-by: Junio C Hamano <junkio@cox.net>
Signed-off-by: Petr Baudis <pasky@ucw.cz>
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NO changed to FAIL and ok was right-aligned with it so that it is easier
to visually identify the failed tests, and the removal of # should reduce
the clutter on the line and aid the eye to spot the test number better.
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This way, passing this variable through the environment actually makes
sense.
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t/Makefile now does not use double-colon rules (why would it?), the rm
-fr trash in the all rule is silent, and OPTS aren't set to blank so
that they can be taken from the environment.
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The +x bit was missing. I applied the original patch three times and set
the permissions correctly two times. Guess which was the time I forgot.
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This set of scripts are designed to test the features and fixes
we recently added to core GIT. The convention to call test
helper function has been changed during the framework cleanup
(take two), and these tests have been updated to use the cleaned
up test-lib.sh interface.
Signed-off-by: Junio C Hamano <junkio@cox.net>
Note that this does not include the t2000-diff.sh script since it
tests a patch which was not applied yet.
Signed-off-by: Petr Baudis <pasky@ucw.cz>
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