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Merge branch 'jk/cherry-pick-0-mainline'

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"git revert -m 0 $merge_commit" complained that reverting a merge
needs to say relative to which parent the reversion needs to
happen, as if "-m 0" weren't given.  The correct diagnosis is that
"-m 0" does not refer to the first parent ("-m 1" does).  This has
been fixed.

* jk/cherry-pick-0-mainline:
  cherry-pick: detect bogus arguments to --mainline
This commit is contained in:
Junio C Hamano 2017-03-17 13:50:28 -07:00
commit 9c96637163
2 changed files with 29 additions and 1 deletions
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21
builtin/revert.c
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@ -54,6 +54,24 @@ static int option_parse_x(const struct option *opt,
return 0;
}
static int option_parse_m(const struct option *opt,
const char *arg, int unset)
{
struct replay_opts *replay = opt->value;
char *end;
if (unset) {
replay->mainline = 0;
return 0;
}
replay->mainline = strtol(arg, &end, 10);
if (*end || replay->mainline <= 0)
return opterror(opt, "expects a number greater than zero", 0);
return 0;
}
LAST_ARG_MUST_BE_NULL
static void verify_opt_compatible(const char *me, const char *base_opt, ...)
{
@ -84,7 +102,8 @@ static int run_sequencer(int argc, const char **argv, struct replay_opts *opts)
OPT_BOOL('e', "edit", &opts->edit, N_("edit the commit message")),
OPT_NOOP_NOARG('r', NULL),
OPT_BOOL('s', "signoff", &opts->signoff, N_("add Signed-off-by:")),
OPT_INTEGER('m', "mainline", &opts->mainline, N_("parent number")),
OPT_CALLBACK('m', "mainline", opts, N_("parent-number"),
N_("select mainline parent"), option_parse_m),
OPT_RERERE_AUTOUPDATE(&opts->allow_rerere_auto),
OPT_STRING(0, "strategy", &opts->strategy, N_("strategy"), N_("merge strategy")),
OPT_CALLBACK('X', "strategy-option", &opts, N_("option"),

9
t/t3502-cherry-pick-merge.sh
View File

@ -31,6 +31,15 @@ test_expect_success setup '
'
test_expect_success 'cherry-pick -m complains of bogus numbers' '
# expect 129 here to distinguish between cases where
# there was nothing to cherry-pick
test_expect_code 129 git cherry-pick -m &&
test_expect_code 129 git cherry-pick -m foo b &&
test_expect_code 129 git cherry-pick -m -1 b &&
test_expect_code 129 git cherry-pick -m 0 b
'
test_expect_success 'cherry-pick a non-merge with -m should fail' '
git reset --hard &&