Add tests where one file is renamed to two different paths in different
sides of history, and where each of the new files matches the name of a
directory from the opposite side of history. Include tests for both the
case where the merge results in those directories not being cleanly
removed, and where those directories are cleanly removed during the merge.
Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
An interesting testcase is having two files each in their own subdirectory
getting renamed to the toplevel at the directory pathname of the other.
Questions arise as to whether the order of operations matters and whether
the directories can correctly get out of the way and make room for the
new files.
Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Having the source of a rename be involved in a directory/file conflict does
not currently pose any difficulties to the current merge-recursive
algorithm (in contrast to destinations of renames and D/F conflicts).
However, combining the two seemed like good testcases to include for
completeness.
Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
When merging two branches with some path involved in a D/F conflict, the
choice of which branch to merge into the other matters for (at least) two
reasons: (1) whether the working copy has a directory full of files that
is in the way of a file, or a file exists that is in the way of a
directory of files, (2) when the directory full of files does not disappear
due to the merge, what files at the same paths should be renamed to
(e.g. filename~HEAD vs. filename~otherbranch).
Add some tests that reverse the merge order of two other tests, and which
verify the contents are as expected (namely, that the results are identical
other than modified-for-uniqueness filenames involving branch names).
Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Add testing of the various ways that a renamed file to a path involved in
a directory/file conflict may be involved in. This includes whether or not
there are conflicts of the contents of the renamed file (if the file was
modified on both sides of history), and whether the directory from the
other side of the merge will disappear as a result of the merge or not.
Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
In tests, call test_cmp rather than raw diff where possible (i.e. if
the output does not go to a pipe), to allow the use of, say, 'cmp'
when the default 'diff -u' is not compatible with a vendor diff.
When that is not possible, use $DIFF, as set in GIT-BUILD-OPTIONS.
Signed-off-by: Gary V. Vaughan <gary@thewrittenword.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Also leave a warning for future merge-recursive explorers.
Signed-off-by: Alex Riesen <raa.lkml@gmail.com>
Signed-off-by: Junio C Hamano <junkio@cox.net>
When a merge results in a creation of a path that did not exist
in HEAD, and if you already have that path on the working tree,
because the index has not been told about the working tree file,
read-tree happily removes it. The issue was brought up by Santi
Béjar on the list.
Signed-off-by: Junio C Hamano <junkio@cox.net>
In some setups (notably server setups) you do not need that dependency.
Gracefully handle the absence of python when NO_PYTHON is defined.
Signed-off-by: Johannes E. Schindelin <Johannes.Schindelin@gmx.de>
Signed-off-by: Junio C Hamano <junkio@cox.net>
This changes the way the case two branches rename the same path
to different paths is handled. Earlier, the code removed the
original path and added both destinations to the index at
stage0. This commit changes it to leave the original path at
stage1, and two destination paths at stage2 and stage3,
respectively.
[jc: I am not really sure if this makes much difference in the
real life merge situations. What should happen when our branch
renames A to B and M to N, while their branch renames A to M?
That is, M remains in our tree as is.]
Signed-off-by: Junio C Hamano <junkio@cox.net>
This adds a couple of tests to cover the following renaming
merge cases:
- one side renames and the other side does not, with and without
content conflicts.
- both side rename to the same path, with and without content
conflicts.
The test setup also prepares a case in which both side rename to
different destination, but currently the code collapses these
destination paths and removes the original path, which may be
wrong. The outcome of this case is not checked by the tests in
this round.
Signed-off-by: Junio C Hamano <junkio@cox.net>
