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-rw-r--r--builtin/merge-base.c32
-rwxr-xr-xt/t6010-merge-base.sh39
2 files changed, 65 insertions, 6 deletions
diff --git a/builtin/merge-base.c b/builtin/merge-base.c
index a292323..0ecde8d 100644
--- a/builtin/merge-base.c
+++ b/builtin/merge-base.c
@@ -48,19 +48,36 @@ static struct commit *get_commit_reference(const char *arg)
return r;
}
-static int handle_octopus(int count, const char **args, int reduce, int show_all)
+static int handle_independent(int count, const char **args)
{
struct commit_list *revs = NULL;
struct commit_list *result;
int i;
- if (reduce)
- show_all = 1;
+ for (i = count - 1; i >= 0; i--)
+ commit_list_insert(get_commit_reference(args[i]), &revs);
+
+ result = reduce_heads(revs);
+ if (!result)
+ return 1;
+
+ while (result) {
+ printf("%s\n", sha1_to_hex(result->item->object.sha1));
+ result = result->next;
+ }
+ return 0;
+}
+
+static int handle_octopus(int count, const char **args, int show_all)
+{
+ struct commit_list *revs = NULL;
+ struct commit_list *result;
+ int i;
for (i = count - 1; i >= 0; i--)
commit_list_insert(get_commit_reference(args[i]), &revs);
- result = reduce ? reduce_heads(revs) : get_octopus_merge_bases(revs);
+ result = reduce_heads(get_octopus_merge_bases(revs));
if (!result)
return 1;
@@ -220,8 +237,11 @@ int cmd_merge_base(int argc, const char **argv, const char *prefix)
if (cmdmode == 'r' && show_all)
die("--independent cannot be used with --all");
- if (cmdmode == 'r' || cmdmode == 'o')
- return handle_octopus(argc, argv, cmdmode == 'r', show_all);
+ if (cmdmode == 'o')
+ return handle_octopus(argc, argv, show_all);
+
+ if (cmdmode == 'r')
+ return handle_independent(argc, argv);
if (cmdmode == 'f') {
if (argc < 1 || 2 < argc)
diff --git a/t/t6010-merge-base.sh b/t/t6010-merge-base.sh
index 30a6833..39b3238 100755
--- a/t/t6010-merge-base.sh
+++ b/t/t6010-merge-base.sh
@@ -258,4 +258,43 @@ test_expect_success 'using reflog to find the fork point' '
test_cmp expect3 actual
'
+test_expect_success 'merge-base --octopus --all for complex tree' '
+ # Best common ancestor for JE, JAA and JDD is JC
+ # JE
+ # / |
+ # / |
+ # / |
+ # JAA / |
+ # |\ / |
+ # | \ | JDD |
+ # | \ |/ | |
+ # | JC JD |
+ # | | /| |
+ # | |/ | |
+ # JA | | |
+ # |\ /| | |
+ # X JB | X X
+ # \ \ | / /
+ # \__\|/___/
+ # J
+ test_commit J &&
+ test_commit JB &&
+ git reset --hard J &&
+ test_commit JC &&
+ git reset --hard J &&
+ test_commit JTEMP1 &&
+ test_merge JA JB &&
+ test_merge JAA JC &&
+ git reset --hard J &&
+ test_commit JTEMP2 &&
+ test_merge JD JB &&
+ test_merge JDD JC &&
+ git reset --hard J &&
+ test_commit JTEMP3 &&
+ test_merge JE JC &&
+ git rev-parse JC >expected &&
+ git merge-base --all --octopus JAA JDD JE >actual &&
+ test_cmp expected actual
+'
+
test_done