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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)
416 return ref; 416 return ref;
417} 417}
418 418
419static char *guess_defbranch(const char *repo_path)
420{
421 int fd, len;
422 char buffer[256];
423 char *ref_start;
424 char *head;
425
426 head = fmt("%s/HEAD", repo_path);
427 fd = open(head, O_RDONLY);
428 if (fd == -1)
429 return xstrdup("master");
430
431 memset(buffer, 0, sizeof(buffer));
432 len = read_in_full(fd, buffer, sizeof(buffer) - 1);
433 close(fd);
434
435 if(!memcmp(buffer, "ref: refs/heads/", 16))
436 return xstrndup(buffer + 16, len - 17);
437
438 if(strlen(buffer) == 41) {
439 /* probably contains a SHA1 sum */
440 memset(buffer, 0, sizeof(buffer));
441 if(readlink(head, buffer, sizeof(buffer)-1)) {
442 ref_start = memmem(buffer, sizeof(buffer)-1, "refs/heads/", 11);
443 if(ref_start)
444 return xstrdup(ref_start+11);
445 }
446 }
447 return xstrdup("master");
448}
449
419static int prepare_repo_cmd(struct cgit_context *ctx) 450static int prepare_repo_cmd(struct cgit_context *ctx)
420{ 451{
421 char *tmp; 452 char *tmp;
@@ -442,10 +473,12 @@ static int prepare_repo_cmd(struct cgit_context *ctx)
442 } 473 }
443 ctx->page.title = fmt("%s - %s", ctx->repo->name, ctx->repo->desc); 474 ctx->page.title = fmt("%s - %s", ctx->repo->name, ctx->repo->desc);
444 475
476 if (!ctx->repo->defbranch)
477 ctx->repo->defbranch = guess_defbranch(ctx->repo->path);
478
445 if (!ctx->qry.head) { 479 if (!ctx->qry.head) {
446 ctx->qry.nohead = 1; 480 ctx->qry.nohead = 1;
447 ctx->qry.head = find_default_branch(ctx->repo); 481 ctx->qry.head = find_default_branch(ctx->repo);
448 ctx->repo->defbranch = ctx->qry.head;
449 } 482 }
450 483
451 if (!ctx->qry.head) { 484 if (!ctx->qry.head) {