1 files changed, 12 insertions, 2 deletions

diff --git a/ui-snapshot.c b/ui-snapshot.c
index 9c4d086..76457d6 100644
--- a/ui-snapshot.c
+++ b/ui-snapshot.c
@@ -149,40 +149,50 @@ static int ref_cb(const char *refname, const unsigned char *sha1, int flags,
 static const char *get_ref_from_filename(const char *url, const char *filename,
                                          const struct cgit_snapshot_format *fmt)
 {
         const char *reponame = cgit_repobasename(url);
         fprintf(stderr, "reponame=%s, filename=%s\n", reponame, filename);
         if (prefixcmp(filename, reponame))
                 return NULL;
         filename += strlen(reponame);
         while (filename && (*filename == '-' || *filename == '_'))
                 filename++;
         dwim_filename = xstrdup(filename);
         dwim_filename[strlen(filename) - strlen(fmt->suffix)] = '\0';
         for_each_tag_ref(ref_cb, NULL);
         return dwim_refname;
 }
 
-void cgit_print_snapshot(const char *head, const char *hex, const char *prefix,
+void cgit_print_snapshot(const char *head, const char *hex,
                          const char *filename, int snapshots, int dwim)
 {
         const struct cgit_snapshot_format* f;
+        char *prefix = NULL;
 
         f = get_format(filename);
         if (!f) {
                 ctx.page.mimetype = "text/html";
                 cgit_print_http_headers(&ctx);
                 cgit_print_docstart(&ctx);
                 cgit_print_pageheader(&ctx);
                 cgit_print_error(fmt("Unsupported snapshot format: %s", filename));
                 cgit_print_docend();
                 return;
         }
 
-        if (!hex && dwim)
+        if (!hex && dwim) {
                 hex = get_ref_from_filename(ctx.repo->url, filename, f);
+                if (hex != NULL) {
+                        prefix = xstrdup(filename);
+                        prefix[strlen(filename) - strlen(f->suffix)] = '\0';
+                }
+        }
 
         if (!hex)
                 hex = head;
 
+        if (!prefix)
+                prefix = xstrdup(cgit_repobasename(ctx.repo->url));
+
         make_snapshot(f, hex, prefix, filename);
+        free(prefix);
 }