4 files changed, 18 insertions, 4 deletions

@@ -421,6 +421,17 @@ char *find_default_branch(struct cgit_repo *repo)
         return ref;
 }
 
+static char *guess_defbranch(const char *repo_path)
+{
+        const char *ref;
+        unsigned char sha1[20];
+
+        ref = resolve_ref("HEAD", sha1, 0, NULL);
+        if (!ref || prefixcmp(ref, "refs/heads/"))
+                return "master";
+        return xstrdup(ref + 11);
+}
+
 static int prepare_repo_cmd(struct cgit_context *ctx)
 {
         char *tmp;
@@ -447,10 +458,12 @@ 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) {
@@ -377,7 +377,8 @@ repo.commit-filter::
 repo.defbranch::
         The name of the default branch for this repository. If no such branch
         exists in the repository, the first branch name (when sorted) is used
-        as default instead. Default value: "master".
+        as default instead. Default value: branch pointed to by HEAD, or
+        "master" if there is no suitable HEAD.
 
 repo.desc::
         The value to show as repository description. Default value: none.
@@ -55,7 +55,6 @@ struct cgit_repo *cgit_add_repo(const char *url)
         ret->desc = "[no description]";
         ret->owner = NULL;
         ret->section = ctx.cfg.section;
-        ret->defbranch = "master";
         ret->snapshots = ctx.cfg.snapshots;
         ret->enable_commit_graph = ctx.cfg.enable_commit_graph;
         ret->enable_log_filecount = ctx.cfg.enable_log_filecount;
@@ -45,7 +45,8 @@ static int get_repo_modtime(const struct cgit_repo *repo, time_t *mtime)
                 return 1;
         }
 
-        path = fmt("%s/refs/heads/%s", repo->path, repo->defbranch);
+        path = fmt("%s/refs/heads/%s", repo->path, repo->defbranch ?
+                   repo->defbranch : "master");
         if (stat(path, &s) == 0) {
                 *mtime = s.st_mtime;
                 r->mtime = *mtime;