cgit

diff --git a/cgit.h b/cgit.h
index b93e2e8dbad67b086b6c6e90555618cfe2d14ed3..9a19c97d0e70fd25f8ee8e28a5837bf8e374bece 100644
--- a/cgit.h
+++ b/cgit.h
@@ -201,6 +201,9 @@ extern char *cgit_repourl(const char *reponame);
 extern char *cgit_pageurl(const char *reponame, const char *pagename,
 			  const char *query);
 
+extern void cgit_tree_link(char *name, char *title, char *class, char *head,
+			   char *rev, char *path);
+
 extern void cgit_print_error(char *msg);
 extern void cgit_print_date(time_t secs, char *format);
 extern void cgit_print_age(time_t t, time_t max_relative, char *format);




diff --git a/ui-commit.c b/ui-commit.c
index ed5384d74f0b0634325391799908ae1c672fa7f9..885f8707cee24b9c2a0c4e2e5f04dfa10e63f3d5 100644
--- a/ui-commit.c
+++ b/ui-commit.c
@@ -153,6 +153,7 @@ 	struct commit_list *p;
 	unsigned char sha1[20];
 	char *query;
 	char *filename;
+	char *tmp;
 	int i;
 
 	if (get_sha1(hex, sha1)) {
@@ -181,10 +182,11 @@ 	html_txt(info->committer_email);
 	html("</td><td class='right'>");
 	cgit_print_date(info->committer_date, FMT_LONGDATE);
 	html("</td></tr>\n");
-	html("<tr><th>tree</th><td colspan='2' class='sha1'><a href='");
-	query = fmt("h=%s", sha1_to_hex(commit->object.sha1));
-	html_attr(cgit_pageurl(cgit_query_repo, "tree", query));
-	htmlf("'>%s</a></td></tr>\n", sha1_to_hex(commit->tree->object.sha1));
+	html("<tr><th>tree</th><td colspan='2' class='sha1'>");
+	tmp = xstrdup(hex);
+	cgit_tree_link(sha1_to_hex(commit->tree->object.sha1), NULL, NULL,
+		       cgit_query_head, tmp, NULL);
+	html("</td></tr>\n");
       	for (p = commit->parents; p ; p = p->next) {
 		parent = lookup_commit_reference(p->item->object.sha1);
 		if (!parent) {




diff --git a/ui-repolist.c b/ui-repolist.c
index e5c6c207818669ddb034bb2012ab6e44c6616498..8ade91a039773fa5722a9d55658d3f6239035c51 100644
--- a/ui-repolist.c
+++ b/ui-repolist.c
@@ -44,7 +44,6 @@ }
 
 void cgit_print_repolist(struct cacheitem *item)
 {
-	struct repoinfo *repo;
 	int i;
 	char *last_group = NULL;
 
@@ -65,37 +64,35 @@ 	     "Idle"
 	     "<th>Links</th></tr>\n");
 
 	for (i=0; i<cgit_repolist.count; i++) {
-		repo = &cgit_repolist.repos[i];
-		if ((last_group == NULL && repo->group != NULL) ||
-		    (last_group != NULL && repo->group == NULL) ||
-		    (last_group != NULL && repo->group!= NULL &&
-		     strcmp(repo->group, last_group))) {
+		cgit_repo = &cgit_repolist.repos[i];
+		if ((last_group == NULL && cgit_repo->group != NULL) ||
+		    (last_group != NULL && cgit_repo->group == NULL) ||
+		    (last_group != NULL && cgit_repo->group != NULL &&
+		     strcmp(cgit_repo->group, last_group))) {
 			html("<tr class='nohover'><td colspan='4' class='repogroup'>");
-			html_txt(repo->group);
+			html_txt(cgit_repo->group);
 			html("</td></tr>");
-			last_group = repo->group;
+			last_group = cgit_repo->group;
 		}
 		htmlf("<tr><td class='%s'>",
-		      repo->group ? "sublevel-repo" : "toplevel-repo");
-		html_link_open(cgit_repourl(repo->url), repo->desc, NULL);
-		html_txt(repo->name);
+		      cgit_repo->group ? "sublevel-repo" : "toplevel-repo");
+		html_link_open(cgit_repourl(cgit_repo->url), NULL, NULL);
+		html_txt(cgit_repo->name);
 		html_link_close();
 		html("</td><td>");
-		html_ntxt(cgit_max_repodesc_len, repo->desc);
+		html_ntxt(cgit_max_repodesc_len, cgit_repo->desc);
 		html("</td><td>");
-		html_txt(repo->owner);
+		html_txt(cgit_repo->owner);
 		html("</td><td>");
-		print_modtime(repo);
+		print_modtime(cgit_repo);
 		html("</td><td>");
-		html_link_open(cgit_repourl(repo->url),
+		html_link_open(cgit_repourl(cgit_repo->url),
 			       "Summary", "button");
 		html("S</a>");
-		html_link_open(cgit_pageurl(repo->name, "log", NULL),
+		html_link_open(cgit_pageurl(cgit_repo->name, "log", NULL),
 			       "Log", "button");
 		html("L</a>");
-		html_link_open(cgit_pageurl(repo->name, "tree", NULL),
-			       "Files", "button");
-		html("F</a>");
+		cgit_tree_link("F", "Files", "button", NULL, NULL, NULL);
 		html("</td></tr>\n");
 	}
 	html("</table>");




diff --git a/ui-shared.c b/ui-shared.c
index aba93e8c135860058a275e4aec8f85a9f796ecdc..9ab6409349be11a29b4b7784be3afb44e2189b1f 100644
--- a/ui-shared.c
+++ b/ui-shared.c
@@ -87,6 +87,70 @@ 	else
 		return fmt("%s/", cgit_virtual_root);
 }
 
+static char *repolink(char *title, char *class, char *page, char *head,
+		      char *path)
+{
+	char *delim = "?";
+
+	html("<a");
+	if (title) {
+		html(" title='");
+		html_attr(title);
+		html("'");
+	}
+	if (class) {
+		html(" class='");
+		html_attr(class);
+		html("'");
+	}
+	html(" href='");
+	if (cgit_virtual_root) {
+		html_attr(cgit_virtual_root);
+		if (cgit_virtual_root[strlen(cgit_virtual_root) - 1] != '/')
+			html("/");
+		html_attr(cgit_repo->url);
+		if (cgit_repo->url[strlen(cgit_repo->url) - 1] != '/')
+			html("/");
+		html(page);
+		html("/");
+		if (path)
+			html_attr(path);
+	} else {
+		html(cgit_script_name);
+		html("?url=");
+		html_attr(cgit_repo->url);
+		if (cgit_repo->url[strlen(cgit_repo->url) - 1] != '/')
+			html("/");
+		html(page);
+		html("/");
+		if (path)
+			html_attr(path);
+		delim = "&amp;";
+	}
+	if (head && head != cgit_query_head) {
+		html(delim);
+		html("h=");
+		html_attr(head);
+		delim = "&amp;";
+	}
+	return fmt("%s", delim);
+}
+
+void cgit_tree_link(char *name, char *title, char *class, char *head,
+		    char *rev, char *path)
+{
+	char *delim;
+
+	delim = repolink(title, class, "tree", head, path);
+	if (rev && rev != cgit_query_head) {
+		html(delim);
+		html("id=");
+		html_attr(rev);
+	}
+	html("'>");
+	html_txt(name);
+	html("</a>");
+}
 
 void cgit_print_date(time_t secs, char *format)
 {




diff --git a/ui-tree.c b/ui-tree.c
index db0bef6cd9d7b02cacea510a72ac0917d8547c9f..3b82374b4b6759feca17f23024595aea2cf705d4 100644
--- a/ui-tree.c
+++ b/ui-tree.c
@@ -55,11 +55,15 @@ static int ls_item(const unsigned char *sha1, const char *base, int baselen,
 		   const char *pathname, unsigned int mode, int stage)
 {
 	char *name;
+	char *fullpath;
 	enum object_type type;
 	unsigned long size = 0;
 	char *url, *qry;
 
 	name = xstrdup(pathname);
+	fullpath = fmt("%s%s%s", cgit_query_path ? cgit_query_path : "",
+		       cgit_query_path ? "/" : "", name);
+
 	type = sha1_object_info(sha1, &size);
 	if (type == OBJ_BAD && !S_ISDIRLNK(mode)) {
 		htmlf("<tr><td colspan='3'>Bad object: %s %s</td></tr>",
@@ -67,10 +71,7 @@ 		      name,
 		      sha1_to_hex(sha1));
 		return 0;
 	}
-	qry = fmt("h=%s&amp;path=%s%s%s", curr_rev,
-		  cgit_query_path ? cgit_query_path : "",
-		  cgit_query_path ? "/" : "", pathname);
-	url = cgit_pageurl(cgit_query_repo, "tree", qry);
+
 	html("<tr><td class='filemode'>");
 	html_filemode(mode);
 	html("</td><td ");
@@ -79,15 +80,19 @@ 		htmlf("class='ls-mod'>