kernel/git - git - PowerEL Git System

Commit Graph

Author	SHA1	Message	Date
Junio C Hamano	446247db78	merge: fix numerus bugs around "trivial merge" area The "trivial merge" codepath wants to optimize itself by making an internal call to the read-tree machinery, but it does not read the index before doing so, and the codepath is never exercised. Incidentally, this failure to read the index upfront means that the safety to refuse doing anything when the index is unmerged does not kick in, either. These two problem are fixed by using read_cache_unmerged() that does read the index before checking if it is unmerged at the beginning of cmd_merge(). The primary logic of the merge, however, assumes that the process never reads the index in-core, and the call to write_cache_as_tree() it makes from write_tree_trivial() will always read from the on-disk index that is prepared the strategy back-ends. This assumption is now broken by the above fix. To fix this issue, we now call discard_cache() before calling write_tree_trivial() when it wants to write the on-disk index as a tree. When multiple strategies are tried, their results are evaluated by reading the resulting index and inspecting it. The codepath needs to make a call to read_cache() for each successful strategy, and for that to work, they need to discard_cache() the one read by the previous round. Also the "trivial merge" forgot that the current commit is one of the parents of the resulting commit. Signed-off-by: Junio C Hamano <gitster@pobox.com>	16 years ago
Junio C Hamano	9ca8f6079c	"git-merge": allow fast-forwarding in a stat-dirty tree We used to refresh the index to clear stat-dirtyness before a fast-forward merge. Recent C rewrite forgot to do this. Signed-off-by: Junio C Hamano <gitster@pobox.com>	16 years ago
Miklos Vajna	dce61e728b	Add a second testcase for handling invalid strategies in git-merge This one tests '-s index' which is interesting because git-merge-index is an existing git command but it is not a valid strategy. Signed-off-by: Miklos Vajna <vmiklos@frugalware.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>	17 years ago
Michele Ballabio	74f5b7fba4	builtin-merge.c: Fix option parsing Now "git merge -m" needs a message, and errors out with the usage text if none is given. This way, t7600-merge.sh is fixed. Signed-off-by: Michele Ballabio <barra_cuda@katamail.com> Acked-by: Miklos Vajna <vmiklos@frugalware.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>	17 years ago
Johannes Sixt	01941bd543	t7600-merge: Use test_expect_failure to test option parsing It used plain 'if git merge ...', which hides a segfault. The test does not pass. Signed-off-by: Johannes Sixt <johannes.sixt@telecom.at> Signed-off-by: Junio C Hamano <gitster@pobox.com>	17 years ago
Junio C Hamano	711f6b295c	reduce_heads(): protect from duplicate input Because we do not try computing merge base with itself for obvious reasons, the code was not prepared for an arguably insane case of the caller feeding the same commit twice to it. Noticed and test written by Sverre Hvammen Johansen Signed-off-by: Junio C Hamano <gitster@pobox.com>	17 years ago
Sverre Hvammen Johansen	3d1dd4728b	reduce_heads(): thinkofix When comparing two commit objects for equality, it is sufficient to compare their in-core pointers because the object layer guarantees the uniqueness. However, comparing pointers to two "struct commit_list" instances that point at the same commit does not make any sense. Spotted by Sverre Hvammen Johansen who wrote an additional test to expose the problem, fixed by Miklos Vajna. Signed-off-by: Junio C Hamano <gitster@pobox.com>	17 years ago
Stephan Beyer	d492b31caf	t/: Use "test_must_fail git" instead of "! git" This patch changes every occurrence of "! git" -- with the meaning that a git call has to gracefully fail -- into "test_must_fail git". This is useful to - make sure the test does not fail because of a signal, e.g. SIGSEGV, and - advertise the use of "test_must_fail" for new tests. Signed-off-by: Stephan Beyer <s-beyer@gmx.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>	17 years ago
Junio C Hamano	4393c23741	Teach merge.log to "git-merge" again The command forgot the configuration variable when rewritten in C. Signed-off-by: Junio C Hamano <gitster@pobox.com>	17 years ago
SZEDER Gábor	efb779f887	merge, pull: add '--(no-)log' command line option These are the command line option equivalents of the 'merge.log' config variable. The patch also updates documentation and bash completion accordingly, and adds a test. Signed-off-by: SZEDER Gábor <szeder@ira.uka.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>	17 years ago
SZEDER Gábor	d8abe148be	merge, pull: introduce '--(no-)stat' option This option has the same effect as '--(no-)summary' (i.e. whether to show a diffsat at the end of the merge or not), and it is consistent with the '--stat' option of other git commands. Documentation, tests, and bash completion are updaed accordingly, and the old --summary option is marked as being deprected. Signed-off-by: SZEDER Gábor <szeder@ira.uka.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>	17 years ago
Jeff King	82ebb0b6ec	add test_cmp function for test scripts Many scripts compare actual and expected output using "diff -u". This is nicer than "cmp" because the output shows how the two differ. However, not all versions of diff understand -u, leading to unnecessary test failure. This adds a test_cmp function to the test scripts and switches all "diff -u" invocations to use it. The function uses the contents of "$GIT_TEST_CMP" to compare its arguments; the default is "diff -u". On systems with a less-capable diff, you can do: GIT_TEST_CMP=cmp make test Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>	17 years ago
Jeff King	b4ce54fc61	remove use of "tail -n 1" and "tail -1" The "-n" syntax is not supported by System V versions of tail (which prefer "tail -1"). Unfortunately "tail -1" is not actually POSIX. We had some of both forms in our scripts. Since neither form works everywhere, this patch replaces both with the equivalent sed invocation: sed -ne '$p' Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>	17 years ago
Jeff King	aadbe44f88	grep portability fix: don't use "-e" or "-q" System V versions of grep (such as Solaris /usr/bin/grep) don't understand either of these options. git's usage of "grep -e pattern" fell into one of two categories: 1. equivalent to "grep pattern". -e is only useful here if the pattern begins with a "-", but all of the patterns are hardcoded and do not begin with a dash. 2. stripping comments and blank lines with grep -v -e "^$" -e "^#" We can fortunately do this in the affirmative as grep '^[^#]' Uses of "-q" can be replaced with redirection to /dev/null. In many tests, however, "grep -q" is used as "if this string is in the expected output, we are OK". In this case, it is fine to just remove the "-q" entirely; it simply makes the "verbose" mode of the test slightly more verbose. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>	17 years ago
Gerrit Pape	e6d1f76ccf	git-merge.sh: better handling of combined --squash,--no-ff,--no-commit options git-merge used to use either the --squash,--no-squash, --no-ff,--ff, --no-commit,--commit option, whichever came last in the command line. This lead to some un-intuitive behavior, having git merge --no-commit --no-ff <branch> actually commit the merge. Now git-merge respects --no-commit together with --no-ff, as well as other combinations of the options. However, this broke a selftest in t/t7600-merge.sh which expected to have --no-ff completely override the --squash option, so that git merge --squash --no-ff <branch> fast-forwards, and makes a merge commit; combining --squash with --no-ff doesn't really make sense though, and is now refused by git-merge. The test is adapted to test --no-ff without the preceding --squash, and another test is added to make sure the --squash --no-ff combination is refused. The unexpected behavior was reported by John Goerzen through http://bing.sdebian.org/468568 Signed-off-by: Gerrit Pape <pape@smarden.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>	17 years ago
Junio C Hamano	7ee906694c	t/t7600: avoid GNUism in grep Using \+ to mean "one or more" in grep without -E is a GNU extension outside POSIX. Avoid it. Signed-off-by: Junio C Hamano <gitster@pobox.com>	17 years ago
Lars Hjemli	d66424c4ac	git-merge: add --ff and --no-ff options These new options can be used to control the policy for fast-forward merges: --ff allows it (this is the default) while --no-ff will create a merge commit. Signed-off-by: Lars Hjemli <hjemli@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>	17 years ago
Lars Hjemli	d08af0ad74	git-merge: add support for --commit and --no-squash These options can be used to override --no-commit and --squash, which is needed since --no-commit and --squash now can be specified as default merge options in $GIT_DIR/config. The change also introduces slightly different behavior for --no-commit: when specified, it explicitly overrides --squash. Earlier, 'git merge --squash --no-commit' would result in a squashed merge (i.e. no $GIT_DIR/MERGE_HEAD was created) but with this patch the command will behave as if --squash hadn't been specified. Signed-off-by: Lars Hjemli <hjemli@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>	17 years ago
Lars Hjemli	aec7b362ad	git-merge: add support for branch.<name>.mergeoptions This enables per branch configuration of merge options. Currently, the most useful options to specify per branch are --squash, --summary/--no-summary and possibly --strategy, but all options are supported. Note: Options containing whitespace will _not_ be handled correctly. Luckily, the only option which can include whitespace is --message and it doesn't make much sense to give that option a default value. Signed-off-by: Lars Hjemli <hjemli@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>	17 years ago
Lars Hjemli	a85d1b6917	Add test-script for git-merge porcelain This test-script excercises the porcelainish aspects of git-merge, and does it thoroughly enough to detect a small bug already noticed by Junio: squashing an octopus generates a faulty .git/SQUASH_MSG. Signed-off-by: Lars Hjemli <hjemli@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>	17 years ago

23 Commits (59d94bc9c851f9f4086a857bc6277feca6a48824)