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-rw-r--r--cgit.c35
1 files changed, 34 insertions, 1 deletions
diff --git a/cgit.c b/cgit.c
index b7807ad..e3fbbf4 100644
--- a/cgit.c
+++ b/cgit.c
@@ -416,6 +416,37 @@ char *find_default_branch(struct cgit_repo *repo)
return ref;
}
+static char *guess_defbranch(const char *repo_path)
+{
+ int fd, len;
+ char buffer[256];
+ char *ref_start;
+ char *head;
+
+ head = fmt("%s/HEAD", repo_path);
+ fd = open(head, O_RDONLY);
+ if (fd == -1)
+ return xstrdup("master");
+
+ memset(buffer, 0, sizeof(buffer));
+ len = read_in_full(fd, buffer, sizeof(buffer) - 1);
+ close(fd);
+
+ if(!memcmp(buffer, "ref: refs/heads/", 16))
+ return xstrndup(buffer + 16, len - 17);
+
+ if(strlen(buffer) == 41) {
+ /* probably contains a SHA1 sum */
+ memset(buffer, 0, sizeof(buffer));
+ if(readlink(head, buffer, sizeof(buffer)-1)) {
+ ref_start = memmem(buffer, sizeof(buffer)-1, "refs/heads/", 11);
+ if(ref_start)
+ return xstrdup(ref_start+11);
+ }
+ }
+ return xstrdup("master");
+}
+
static int prepare_repo_cmd(struct cgit_context *ctx)
{
char *tmp;
@@ -442,10 +473,12 @@ static int prepare_repo_cmd(struct cgit_context *ctx)
}
ctx->page.title = fmt("%s - %s", ctx->repo->name, ctx->repo->desc);
+ if (!ctx->repo->defbranch)
+ ctx->repo->defbranch = guess_defbranch(ctx->repo->path);
+
if (!ctx->qry.head) {
ctx->qry.nohead = 1;
ctx->qry.head = find_default_branch(ctx->repo);
- ctx->repo->defbranch = ctx->qry.head;
}
if (!ctx->qry.head) {