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-rw-r--r--refs.c47
1 files changed, 47 insertions, 0 deletions
diff --git a/refs.c b/refs.c
index 5f729ed412..59a9223d4c 100644
--- a/refs.c
+++ b/refs.c
@@ -697,6 +697,53 @@ static char *substitute_branch_name(struct repository *r,
return NULL;
}
+void strbuf_branchname(struct strbuf *sb, const char *name, unsigned allowed)
+{
+ int len = strlen(name);
+ struct interpret_branch_name_options options = {
+ .allowed = allowed
+ };
+ int used = repo_interpret_branch_name(the_repository, name, len, sb,
+ &options);
+
+ if (used < 0)
+ used = 0;
+ strbuf_add(sb, name + used, len - used);
+}
+
+int strbuf_check_branch_ref(struct strbuf *sb, const char *name)
+{
+ if (startup_info->have_repository)
+ strbuf_branchname(sb, name, INTERPRET_BRANCH_LOCAL);
+ else
+ strbuf_addstr(sb, name);
+
+ /*
+ * This splice must be done even if we end up rejecting the
+ * name; builtin/branch.c::copy_or_rename_branch() still wants
+ * to see what the name expanded to so that "branch -m" can be
+ * used as a tool to correct earlier mistakes.
+ */
+ strbuf_splice(sb, 0, 0, "refs/heads/", 11);
+
+ if (*name == '-' ||
+ !strcmp(sb->buf, "refs/heads/HEAD"))
+ return -1;
+
+ return check_refname_format(sb->buf, 0);
+}
+
+int strbuf_check_tag_ref(struct strbuf *sb, const char *name)
+{
+ if (name[0] == '-')
+ return -1;
+
+ strbuf_reset(sb);
+ strbuf_addf(sb, "refs/tags/%s", name);
+
+ return check_refname_format(sb->buf, 0);
+}
+
int repo_dwim_ref(struct repository *r, const char *str, int len,
struct object_id *oid, char **ref, int nonfatal_dangling_mark)
{