[PATCH v2 4/9] apply: accept -3/--3way command line option
- From
Junio C Hamano <gitster@pobox.com>
- Date
- May 10, 2012, 22:32 UTC
- Message-ID
- <1336689173-15822-5-git-send-email-gitster@pobox.com>
- In-Reply-To
- <1336689173-15822-1-git-send-email-gitster@pobox.com>
This is the beginning of teaching the three-way merge fallback logic "git am -3" uses to the underlying "git apply". It only implements the command line parsing part, and does not do anything interesting yet, other than making sure that "--reject" and "--3way" are not given together.
Signed-off-by: Junio C Hamano <gitster@pobox.com> --- builtin/apply.c | 19 +++++++++++++++++-- t/t4117-apply-reject.sh | 8 ++++++++ 2 files changed, 25 insertions(+), 2 deletions(-)
diff --git a/builtin/apply.c b/builtin/apply.c index 2a31023..fcd5bdf 100644 --- a/builtin/apply.c +++ b/builtin/apply.c @@ -46,6 +46,7 @@ static int apply_with_reject; static int apply_verbosely; static int allow_overlap; static int no_add; +static int threeway; static const char *fake_ancestor; static int line_termination = '\n'; static unsigned int p_context = UINT_MAX; @@ -3072,6 +3073,12 @@ static int load_preimage(struct image *image, return 0; } +static int try_threeway_fallback(struct image *image, struct patch *patch, + struct stat *st, struct cache_entry *ce) +{ + return -1; /* for now */ +} + static int apply_data(struct patch *patch, struct stat *st, struct cache_entry *ce) { struct image image; @@ -3079,8 +3086,11 @@ static int apply_data(struct patch *patch, struct stat *st, struct cache_entry * if (load_preimage(&image, patch, st, ce) < 0) return -1; - if (apply_fragments(&image, patch) < 0) - return -1; /* note with --reject this succeeds. */ + if (apply_fragments(&image, patch) < 0) { + /* Note: with --reject, the above call succeeds. */ + if (!threeway || try_threeway_fallback(&image, patch, st, ce) < 0) + return -1; + } patch->result = image.buf; patch->resultsize = image.len; add_to_fn_table(patch); @@ -3992,6 +4002,8 @@ int cmd_apply(int argc, const char **argv, const char *prefix_) "apply a patch without touching the working tree"), OPT_BOOLEAN(0, "apply", &force_apply, "also apply the patch (use with --stat/--summary/--check)"), + OPT_BOOL('3', "3way", &threeway, + "attempt three-way merge if a patch does not apply"), OPT_FILENAME(0, "build-fake-ancestor", &fake_ancestor, "build a temporary index based on embedded index information"), { OPTION_CALLBACK, 'z', NULL, NULL, NULL, @@ -4040,6 +4052,9 @@ int cmd_apply(int argc, const char **argv, const char *prefix_) argc = parse_options(argc, argv, prefix, builtin_apply_options, apply_usage, 0); + if (apply_with_reject && threeway) + die("--reject and --3way cannot be used together."); + if (apply_with_reject) apply = apply_verbosely = 1; if (!force_apply && (diffstat || numstat || summary || check || fake_ancestor)) diff --git a/t/t4117-apply-reject.sh b/t/t4117-apply-reject.sh index e9ccd16..8e15ecb 100755 --- a/t/t4117-apply-reject.sh +++ b/t/t4117-apply-reject.sh @@ -46,6 +46,14 @@ test_expect_success setup ' cat file1 >saved.file1 ' +test_expect_success 'apply --reject is incompatible with --3way' ' + test_when_finished "cat saved.file1 >file1" && + git diff >patch.0 && + git checkout file1 && + test_must_fail git apply --reject --3way patch.0 && + git diff --exit-code +' + test_expect_success 'apply without --reject should fail' ' if git apply patch.1
-- 1.7.10.1.574.g840b38f