@@ -104,8 +104,7 @@ }
 
 static void snapshot_fn(struct cgit_context *ctx)
 {
-	cgit_print_snapshot(ctx->qry.head, ctx->qry.sha1,
-			    cgit_repobasename(ctx->repo->url), ctx->qry.path,
+	cgit_print_snapshot(ctx->qry.head, ctx->qry.sha1, ctx->qry.path,
 			    ctx->repo->snapshots, ctx->qry.nohead);
 }
 

@@ -78,12 +78,37 @@
 static void print_tag_header()
 {
 	html("<tr class='nohover'><th class='left'>Tag</th>"
-	     "<th class='left'>Reference</th>"
+	     "<th class='left'>Download</th>"
 	     "<th class='left'>Author</th>"
 	     "<th class='left' colspan='2'>Age</th></tr>\n");
 	header = 1;
 }
 
+static void print_tag_downloads(const struct cgit_repo *repo, const char *ref)
+{
+	const struct cgit_snapshot_format* f;
+    	char *filename;
+	const char *basename;
+
+	if (!ref || strlen(ref) < 2)
+		return;
+
+	basename = cgit_repobasename(repo->url);
+	if (prefixcmp(ref, basename) != 0) {
+		if ((ref[0] == 'v' || ref[0] == 'V') && isdigit(ref[1]))
+			ref++;
+		if (isdigit(ref[0]))
+			ref = xstrdup(fmt("%s-%s", basename, ref));
+	}
+
+	for (f = cgit_snapshot_formats; f->suffix; f++) {
+		if (!(repo->snapshots & f->bit))
+			continue;
+		filename = fmt("%s%s", ref, f->suffix);
+		cgit_snapshot_link(filename, NULL, NULL, NULL, NULL, filename);
+		html("&nbsp;&nbsp;");
+	}
+}
 static int print_tag(struct refinfo *ref)
 {
 	struct tag *tag;
@@ -98,7 +123,10 @@ return 1;
 		html("<tr><td>");
 		cgit_tag_link(name, NULL, NULL, ctx.qry.head, name);
 		html("</td><td>");
-		cgit_object_link(tag->tagged);
+		if (ctx.repo->snapshots && (tag->tagged->type == OBJ_COMMIT))
+			print_tag_downloads(ctx.repo, name);
+		else
+			cgit_object_link(tag->tagged);
 		html("</td><td>");
 		if (info->tagger)
 			html(info->tagger);
@@ -112,7 +140,10 @@ print_tag_header();
 		html("<tr><td>");
 		html_txt(name);
 		html("</td><td>");
-		cgit_object_link(ref->object);
+		if (ctx.repo->snapshots && (tag->tagged->type == OBJ_COMMIT))
+			print_tag_downloads(ctx.repo, name);
+		else
+			cgit_object_link(ref->object);
 		html("</td></tr>\n");
 	}
 	return 0;

@@ -365,11 +365,14 @@ }
 
 void cgit_object_link(struct object *obj)
 {
-	char *page, *rev, *name;
+	char *page, *shortrev, *fullrev, *name;
 
+	fullrev = sha1_to_hex(obj->sha1);
+	shortrev = xstrdup(fullrev);
+	shortrev[10] = '\0';
 	if (obj->type == OBJ_COMMIT) {
-                cgit_commit_link(fmt("commit %s", sha1_to_hex(obj->sha1)), NULL, NULL,
-				 ctx.qry.head, sha1_to_hex(obj->sha1));
+                cgit_commit_link(fmt("commit %s...", shortrev), NULL, NULL,
+				 ctx.qry.head, fullrev);
 		return;
 	} else if (obj->type == OBJ_TREE)
 		page = "tree";
@@ -377,9 +380,8 @@ else if (obj->type == OBJ_TAG)
 		page = "tag";
 	else
 		page = "blob";
-	rev = sha1_to_hex(obj->sha1);
-	name = fmt("%s %s", typename(obj->type), rev);
-	reporevlink(page, name, NULL, NULL, ctx.qry.head, rev, NULL);
+	name = fmt("%s %s...", typename(obj->type), shortrev);
+	reporevlink(page, name, NULL, NULL, ctx.qry.head, fullrev, NULL);
 }
 
 void cgit_print_date(time_t secs, char *format, int local_time)
@@ -707,8 +709,7 @@ if (!(snapshots & f->bit))
 			continue;
 		filename = fmt("%s-%s%s", cgit_repobasename(repo), hex,
 			       f->suffix);
-		cgit_snapshot_link(filename, NULL, NULL, (char *)head,
-				   (char *)hex, filename);
+		cgit_snapshot_link(filename, NULL, NULL, NULL, NULL, filename);
 		html("<br/>");
 	}
 }

@@ -114,58 +114,53 @@ format->write_func(&args);
 	return 0;
 }
 
-char *dwim_filename = NULL;
-const char *dwim_refname = NULL;
-
-static int ref_cb(const char *refname, const unsigned char *sha1, int flags,
-		  void *cb_data)
-{
-	const char *r = refname;
-	while (r && *r) {
-		fprintf(stderr, "  cmp %s with %s:", dwim_filename, r);
-		if (!strcmp(dwim_filename, r)) {
-			fprintf(stderr, "MATCH!\n");
-			dwim_refname = refname;
-			return 1;
-		}
-		fprintf(stderr, "no match\n");
-		if (isdigit(*r))
-			break;
-		r++;
-	}
-	return 0;
-}
-
-/* Try to guess the requested revision by combining repo name and tag name
- * and comparing this to the requested snapshot name. E.g. the requested
- * snapshot is "cgit-0.7.2.tar.gz" while repo name is "cgit" and tag name
- * is "v0.7.2". First, the reponame is stripped off, leaving "-0.7.2.tar.gz".
- * Next, any '-' and '_' characters are stripped, leaving "0.7.2.tar.gz".
- * Finally, the requested format suffix is removed and we end up with "0.7.2".
- * Then we test each tag against this dwimmed filename, and for each tag
- * we even try to remove any leading characters which are non-digits. I.e.
- * we first compare with "v0.7.2", then with "0.7.2" and we've got a match.
+/* Try to guess the requested revision from the requested snapshot name.
+ * First the format extension is stripped, e.g. "cgit-0.7.2.tar.gz" become
+ * "cgit-0.7.2". If this is a valid commit object name we've got a winner.
+ * Otherwise, if the snapshot name has a prefix matching the result from
+ * repo_basename(), we strip the basename and any following '-' and '_'
+ * characters ("cgit-0.7.2" -> "0.7.2") and check the resulting name once
+ * more. If this still isn't a valid commit object name, we check if pre-
+ * pending a 'v' to the remaining snapshot name ("0.7.2" -> "v0.7.2") gives
+ * us something valid.
  */
 static const char *get_ref_from_filename(const char *url, const char *filename,
-					 const struct cgit_snapshot_format *fmt)
+					 const struct cgit_snapshot_format *format)
 {
-	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;
+	const char *reponame;
+	unsigned char sha1[20];
+	char *snapshot;
+
+	snapshot = xstrdup(filename);
+	snapshot[strlen(snapshot) - strlen(format->suffix)] = '\0';
+	fprintf(stderr, "snapshot=%s\n", snapshot);
+
+	if (get_sha1(snapshot, sha1) == 0)
+		return snapshot;
+
+	reponame = cgit_repobasename(url);
+	fprintf(stderr, "reponame=%s\n", reponame);
+	if (prefixcmp(snapshot, reponame) == 0) {
+		snapshot += strlen(reponame);
+		while (snapshot && (*snapshot == '-' || *snapshot == '_'))
+			snapshot++;
+	}
+
+	if (get_sha1(snapshot, sha1) == 0)
+		return snapshot;
+
+	snapshot = fmt("v%s", snapshot);
+	if (get_sha1(snapshot, sha1) == 0)
+		return snapshot;
+
+	return NULL;
 }
 
-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) {
@@ -178,11 +173,20 @@ 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);
 }

@@ -2,7 +2,6 @@ #ifndef UI_SNAPSHOT_H
 #define UI_SNAPSHOT_H
 
 extern void cgit_print_snapshot(const char *head, const char *hex,
-				const char *prefix, const char *filename,
-				int snapshot, int dwim);
+				const char *filename, int snapshot, int dwim);
 
 #endif /* UI_SNAPSHOT_H */