Make has_commit() non-static
Move has_commit() from branch to a common location, in preparation for
using it in "git-tag". Rename it to is_descendant_of() to make it more
unique and descriptive.
Signed-off-by: Jake Goulding <goulding@vivisimo.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
diff --git a/builtin-branch.c b/builtin-branch.c
index 82d6fb2..56a1971 100644
--- a/builtin-branch.c
+++ b/builtin-branch.c
@@ -193,21 +193,6 @@
int kinds;
};
-static int has_commit(struct commit *commit, struct commit_list *with_commit)
-{
- if (!with_commit)
- return 1;
- while (with_commit) {
- struct commit *other;
-
- other = with_commit->item;
- with_commit = with_commit->next;
- if (in_merge_bases(other, &commit, 1))
- return 1;
- }
- return 0;
-}
-
static int append_ref(const char *refname, const unsigned char *sha1, int flags, void *cb_data)
{
struct ref_list *ref_list = (struct ref_list*)(cb_data);
@@ -231,7 +216,7 @@
return error("branch '%s' does not point at a commit", refname);
/* Filter with with_commit if specified */
- if (!has_commit(commit, ref_list->with_commit))
+ if (!is_descendant_of(commit, ref_list->with_commit))
return 0;
/* Don't add types the caller doesn't want */
@@ -401,7 +386,8 @@
qsort(ref_list.list, ref_list.index, sizeof(struct ref_item), ref_cmp);
detached = (detached && (kinds & REF_LOCAL_BRANCH));
- if (detached && head_commit && has_commit(head_commit, with_commit)) {
+ if (detached && head_commit &&
+ is_descendant_of(head_commit, with_commit)) {
struct ref_item item;
item.name = xstrdup("(no branch)");
item.kind = REF_LOCAL_BRANCH;
diff --git a/commit.c b/commit.c
index c99db16..aa3b35b 100644
--- a/commit.c
+++ b/commit.c
@@ -705,6 +705,21 @@
return get_merge_bases_many(one, 1, &two, cleanup);
}
+int is_descendant_of(struct commit *commit, struct commit_list *with_commit)
+{
+ if (!with_commit)
+ return 1;
+ while (with_commit) {
+ struct commit *other;
+
+ other = with_commit->item;
+ with_commit = with_commit->next;
+ if (in_merge_bases(other, &commit, 1))
+ return 1;
+ }
+ return 0;
+}
+
int in_merge_bases(struct commit *commit, struct commit **reference, int num)
{
struct commit_list *bases, *b;
diff --git a/commit.h b/commit.h
index 3a7b06a..ba9f638 100644
--- a/commit.h
+++ b/commit.h
@@ -133,6 +133,7 @@
extern struct commit_list *get_shallow_commits(struct object_array *heads,
int depth, int shallow_flag, int not_shallow_flag);
+int is_descendant_of(struct commit *, struct commit_list *);
int in_merge_bases(struct commit *, struct commit **, int);
extern int interactive_add(int argc, const char **argv, const char *prefix);
