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Author SHA1 Message Date
Clemens Buchacher
1d718a5108 do not overwrite untracked symlinks
Git traditionally overwrites untracked symlinks silently. This will
generally not cause massive data loss, but it is inconsistent with
the behavior for regular files, which are not silently overwritten.

With this change, git refuses to overwrite untracked symlinks by
default. If the user really wants to overwrite the untracked
symlink, he has git-clean and git-checkout -f at his disposal.

Signed-off-by: Clemens Buchacher <drizzd@aon.at>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-02-21 22:51:07 -08:00
Junio C Hamano
a2c6726417 Merge branch 'ab/test-2'
* ab/test-2: (51 commits)
  tests: factor HOME=$(pwd) in test-lib.sh
  test-lib: use subshell instead of cd $new && .. && cd $old
  tests: simplify "missing PREREQ" message
  t/t0000-basic.sh: Run the passing TODO test inside its own test-lib
  test-lib: Allow overriding of TEST_DIRECTORY
  test-lib: Use "$GIT_BUILD_DIR" instead of "$TEST_DIRECTORY"/../
  test-lib: Use $TEST_DIRECTORY or $GIT_BUILD_DIR instead of $(pwd) and ../
  test: Introduce $GIT_BUILD_DIR
  cvs tests: do not touch test CVS repositories shipped with source
  t/t9602-cvsimport-branches-tags.sh: Add a PERL prerequisite
  t/t9601-cvsimport-vendor-branch.sh: Add a PERL prerequisite
  t/t7105-reset-patch.sh: Add a PERL prerequisite
  t/t9001-send-email.sh: convert setup code to tests
  t/t9001-send-email.sh: change from skip_all=* to prereq skip
  t/t9001-send-email.sh: Remove needless PROG=* assignment
  t/t9600-cvsimport.sh: change from skip_all=* to prereq skip
  lib-patch-mode tests: change from skip_all=* to prereq skip
  t/t3701-add-interactive.sh: change from skip_all=* to prereq skip
  tests: Move FILEMODE prerequisite to lib-prereq-FILEMODE.sh
  t/Makefile: Create test-results dir for smoke target
  ...

Conflicts:
	t/t6035-merge-dir-to-symlink.sh
2010-09-04 08:15:36 -07:00
Junio C Hamano
3f29dd6c23 Merge branch 'en/d-f-conflict-fix'
* en/d-f-conflict-fix:
  merge-recursive: Avoid excessive output for and reprocessing of renames
  merge-recursive: Fix multiple file rename across D/F conflict
  t6031: Add a testcase covering multiple renames across a D/F conflict
  merge-recursive: Fix typo
  Mark tests that use symlinks as needing SYMLINKS prerequisite
  t/t6035-merge-dir-to-symlink.sh: Remove TODO on passing test
  fast-import: Improve robustness when D->F changes provided in wrong order
  fast-export: Fix output order of D/F changes
  merge_recursive: Fix renames across paths below D/F conflicts
  merge-recursive: Fix D/F conflicts
  Add a rename + D/F conflict testcase
  Add additional testcases for D/F conflicts

Conflicts:
	merge-recursive.c
2010-08-31 16:23:58 -07:00
Ævar Arnfjörð Bjarmason
41be8ea223 tests: implicitly skip SYMLINKS tests using <prereq>
Change the tests that skipped due to unavailable SYMLINKS support to
use the three-arg prereq form of test_expect_success.

Now we get an indication of how many tests that need symlinks are
being skipped on platforms that don't support them.

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-08-18 12:42:45 -07:00
Ævar Arnfjörð Bjarmason
2fd1ea1405 t/t6035-merge-dir-to-symlink.sh: Remove TODO on passing test
Various merge-recursive cases were fixed in "merge-recursive: Fix D/F
conflicts" by Elijah Newren. Some tests were changed from
test_expect_failure to test_expect_success, but one fell through the
cracks.

Change that test to use test_expect_success.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-07-27 12:51:35 -07:00
Elijah Newren
37348937ff merge-recursive: Fix D/F conflicts
The D/F conflicts that can be automatically resolved (file or directory
unmodified on one side of history), have the nice property that
process_entry() can correctly handle all subpaths of the D/F conflict.  In
the case of D->F conversions, it will correctly delete all non-conflicting
files below the relevant directory and the directory itself (note that both
untracked and conflicting files below the directory will prevent its
removal).  So if we handle D/F conflicts after all other conflicts, they
become fairly simple to handle -- we just need to check for whether or not
a path (file/directory) is in the way of creating the new content.  We do
this by having process_entry() defer handling such entries to a subsequent
process_df_entry() step.

Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-07-09 16:12:42 -07:00
Elijah Newren
f15652d90c Add additional testcases for D/F conflicts
Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-07-09 16:10:54 -07:00
Ævar Arnfjörð Bjarmason
fadb5156e4 tests: Skip tests in a way that makes sense under TAP
SKIP messages are now part of the TAP plan. A TAP harness now knows
why a particular test was skipped and can report that information. The
non-TAP harness built into Git's test-lib did nothing special with
these messages, and is unaffected by these changes.

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-06-25 10:08:20 -07:00
Junio C Hamano
df3dac3758 tests: update tests that used to fail
"diff --cc" output t4038 tests was fixed by b810cbb (diff --cc: a lost
line at the beginning of the file is shown incorrectly, 2009-07-22), which
was actually the commit that introduced this test..

An error in "git merge -s resolve" t6035 tests was fixed by 730f728
(unpack-trees.c: look ahead in the index, 2009-09-20).

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-01-28 00:41:52 -08:00
Junio C Hamano
cee2d6ae63 Aggressive three-way merge: fix D/F case
When the ancestor used to have a blob "P", your tree removed it, and the
tree you are merging with also removed it, the agressive three-way cleanly
merges to remove that blob.  If the other tree added a new blob "P/Q"
while removing "P", it should also merge cleanly to remove "P" and create
"P/Q" (since neither the ancestor nor your tree could have had it, so it
is a typical "created in one").

The "aggressive" rule is not new anymore.  Reword the stale comment.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-01-03 23:25:13 -08:00
Junio C Hamano
1ee26571e9 traverse_trees(): handle D/F conflict case sanely
traverse_trees() is supposed to call its callback with all the matching
entries from the given trees.  The current algorithm keeps a pointer to
each of the tree being traversed, and feeds the entry with the earliest
name to the callback.

This breaks down if the trees being traversed looks like this:

    A    B
    t-1  t
    t-2  u
    t/a  v

When we are currently looking at an entry "t-1" in tree A, and tree B has
returned "t", feeding "t" from the B and not feeding anything from A, only
because "t-1" sorts later than "t", will miss an entry for a subtree "t"
behind the current entry in tree A.

This introduces extended_entry_extract() helper function that gives what
name is expected from the tree, and implements a mechanism to look-ahead
in the tree object using it, to make sure such a case is handled sanely.
Traversal in tree A in the above example will first return "t" to match
that of B, and then the next request for an entry to A then returns "t-1".

This roughly corresponds to what Linus's "prepare for one-entry lookahead"
wanted to do, but because this does implement look ahead, t6035 and one more
test in t1012 reveal that the approach would not work without adjusting the
side that walks the index in unpack_trees() as well.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-01-03 23:21:32 -08:00
Johannes Sixt
b6b0737d02 t6035-merge-dir-to-symlink depends on SYMLINKS prerequisite
Signed-off-by: Johannes Sixt <j6t@kdbg.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-08-09 10:37:24 -07:00
Linus Torvalds
b6986d8a75 git-checkout: be careful about untracked symlinks
This fixes the case where an untracked symlink that points at a directory
with tracked paths confuses the checkout logic, demostrated in t6035.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-07-29 20:24:28 -07:00
Kjetil Barvik
77716755cb lstat_cache: guard against full match of length of 'name' parameter
longest_path_match() in symlinks.c does exactly what it's name says,
but in some cases that match can be too long, since the
has_*_leading_path() functions assumes that the match will newer be as
long as the name string given to the function.

fix this by adding an extra if test which checks if the match length
is equal to the 'len' parameter.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-07-29 20:20:12 -07:00
Pickens, James E
4f6339b0c3 Demonstrate bugs when a directory is replaced with a symlink
This test creates two directories, a/b and a/b-2, then replaces a/b with
a symlink to a/b-2, then merges that change into the 'baseline' commit,
which contains an unrelated change.

There are two bugs:
1. 'git checkout' incorrectly deletes work tree file a/b-2/d.
2. 'git merge' incorrectly deletes work tree file a/b-2/d.

The test goes on to create another branch in which a/b-2 is replaced
with a symlink to a/b (i.e., the reverse of what was done the first
time), and merge it into the 'baseline' commit.

There is a different bug:
3. The merge should be clean, but git reports a conflict.

Signed-off-by: James Pickens <james.e.pickens@intel.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-07-29 20:18:25 -07:00