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>
This patch adds the basic library functions to create and replay delta
information. Also included is a test-delta utility to validate the
code.
diff-delta was based on LibXDiff written by Davide Libenzi
Signed-off-by: Nicolas Pitre <nico@cam.org>
Signed-off-by: Davide Libenzi <davidel@xmailserver.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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>
I just remembered why I placed that bogus "sb->len ==0 implies
sb->eof" condition there. We need at least something like this
to catch the normal EOF (that is, line termination immediately
followed by EOF) case. "if (feof(fp))" fires when we have
already read the eof, not when we are about read it.
Signed-off-by: Junio C Hamano <junkio@cox.net>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This normally doesn't matter, but if you have a filename that is
sometimes a directory and sometimes a regular file (or symlink),
we don't want the regular file case to trigger a "partial match".
We used to trigger the "interesting subdirectory" check for any
matching name that started with the same character series, regardless
of whether it had the matching slash or not.
We can't just do the "sha1_to_hex()" thing directly, since the
buffer in question will be overwritten by the name of the parent.
So teach diff_tree_commit() to generate the proper hex name itself.
We use "--" to mark end of command line switches, not "-". Also,
allow more flexibility in the passed-in sha1 names, in that a
single sha1 uses the "commit-diff" logic that compares against
its parent(s).
This patch adds a framework and a stub implementation of rename
detection to diff-helper program.
The current stub code is just enough to detect pure renames in
diff-tree output and not fancier. The plan is perhaps to use
the same delta code when Nico's delta storage patch is merged
for similarity evaluation purposes.
Signed-off-by: Junio C Hamano <junkio@cox.net>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
explicit references for reachability analysis.
We already had that as separate logic in git-prune-script, so this
is not a new special case - it's an old special case moved into
fsck, making normal usage be much simpler.
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>
- Raw hashes should be unsigned char.
- String functions want signed char.
- Hash and compress functions want unsigned char.
Signed-off By: Brian Gerst <bgerst@didntduck.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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>
xmalloc() and xrealloc() now take their sizes as size_t-type arguments.
Introduced complementary xcalloc().
Signed-off-by: Brad Roberts <braddr@puremagic.com>
Signed-off-by: Petr Baudis <pasky@ucw.cz>
It used to be that diff-tree needed helper support to parse its
raw output to generate diffs, but these days git-diff-* family
produces the same output and the helper is not tied to diff-tree
anymore. Drop "tree" from its name.
This follows the "rename only" commit to adjust the contents of
the files involved.
Signed-off-by: Junio C Hamano <junkio@cox.net>
Signed-off-by: Petr Baudis <pasky@ucw.cz>
It used to be that diff-tree needed helper support to parse its
raw output to generate diffs, but these days git-diff-* family
produces the same output and the helper is not tied to diff-tree
anymore. Drop "tree" from its name.
This commit is done separately to record just the rename and no
file content changes. The changes in the renamed files are recorded
in the next commit.
Signed-off-by: Junio C Hamano <junkio@cox.net>
Bundled with the changes in the unrenamed files.
Signed-off-by: Petr Baudis <pasky@ucw.cz>
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>
This updates the mode change strings to be a bit more machine
friendly. Although this might go against the spirit of
readability for human consumption, these mode bits strings are
shown only when unusual things (mode change, file creation and
deletion) happens, output normalized for machine consumption
would be permissible.
Signed-off-by: Junio C Hamano <junkio@cox.net>
Signed-off-by: Petr Baudis <pasky@ucw.cz>
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>
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>
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
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>
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>
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.
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.
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>
This adds t/ directory to host test suite, a test helper
library and a basic set of tests.
Petr Baudis raised many valid points at the earlier attempts in
git mailing list. This round, test-lib.sh has been updated to a
bit more modern style, and the default output is made easier to
read. Also included is one sample test script that tests the
very basics. This test has already found one leftover bug
missed when we introduced symlink support, which has been fixed
since then. The supplied Makefile is designed to run all the
available tests.
Signed-off-by: Junio C Hamano <junkio@cox.net>
Signed-off-by: Petr Baudis <pasky@ucw.cz>
Again I am not sure why this was missed during the last round,
but git-diff-files mishandles symlinks on the filesystem. This
patch fixes it.
Signed-off-by: Junio C Hamano <junkio@cox.net>
And I'm not sure why did I miss this patch before. Sorry.
Signed-off-by: Petr Baudis <pasky@ucw.cz>
It makes the includers (diff commands documentation) depend on the includee
(diff format description).
Signed-off-by: David Greaves <david@dgreaves.com>
Signed-off-by: Petr Baudis <pasky@ucw.cz>
When checkout-cache attempts to check out a non-directory where
a directory exists on the work tree, or to check out a file
under directory D when path D is a non-directory on the work
tree, the attempt fails. Before running checkout-cache, the
user can run git-ls-files with the -k (killed) option to get a
list of such paths. The tagged output format uses "K" to denote
them. This is useful for Porcelain layer to be careful when
dealing with the recently corrected behaviour of checkout-cache.
Signed-off-by: Junio C Hamano <junkio@cox.net>
Signed-off-by: Petr Baudis <pasky@ucw.cz>
It is kind of surprising that this was missed in the last round,
but the work tree scanner in git-ls-files was still deliberately
ignoring symlinks. This patch fixes it, so that --others will
correctly report unregistered symlinks.
Signed-off-by: Junio C Hamano <junkio@cox.net>
Signed-off-by: Petr Baudis <pasky@ucw.cz>
Fix checkout-cache when existing work tree interferes with the checkout.
This is essentially the same one as the last one I sent to the
GIT list, except that the patch is rebased to the current tip of
the git-pb tree, and an unnecessary call to create_directories()
removed.
The checkout-cache command gets confused when checking out a
file in a subdirectory and the work tree has a symlink to the
subdirectory. Also it fails to check things out when there is a
non-directory in the work tree when cache expects a directory
there, and vice versa. This patch fixes the first problem by
making sure all the leading paths in the file being checked out
are indeed directories, and also fixes directory vs
non-directory conflicts when '-f' is specified by removing the
offending paths.
Signed-off-by: Junio C Hamano <junkio@cox.net>
Signed-off-by: Petr Baudis <pasky@ucw.cz>
Linus Torvalds