Add and use cgit_tree_link()

This creates a new function used to generate links to 'tree' page and uses
the function everywhere a link to the 'tree' page is generated.

Signed-off-by: Lars Hjemli <hjemli@gmail.com>

5 files changed, 107 insertions, 38 deletions

diff --git a/cgit.h b/cgit.h
index b93e2e8..9a19c97 100644
--- a/cgit.h
+++ b/cgit.h
@@ -108,119 +108,122 @@ extern char *cgit_root_title;
 extern char *cgit_css;
 extern char *cgit_logo;
 extern char *cgit_index_header;
 extern char *cgit_logo_link;
 extern char *cgit_module_link;
 extern char *cgit_agefile;
 extern char *cgit_virtual_root;
 extern char *cgit_script_name;
 extern char *cgit_cache_root;
 extern char *cgit_repo_group;
 
 extern int cgit_nocache;
 extern int cgit_snapshots;
 extern int cgit_enable_log_filecount;
 extern int cgit_enable_log_linecount;
 extern int cgit_max_lock_attempts;
 extern int cgit_cache_root_ttl;
 extern int cgit_cache_repo_ttl;
 extern int cgit_cache_dynamic_ttl;
 extern int cgit_cache_static_ttl;
 extern int cgit_cache_max_create_time;
 extern int cgit_summary_log;
 
 extern int cgit_max_msg_len;
 extern int cgit_max_repodesc_len;
 extern int cgit_max_commit_count;
 
 extern int cgit_query_has_symref;
 extern int cgit_query_has_sha1;
 
 extern char *cgit_querystring;
 extern char *cgit_query_repo;
 extern char *cgit_query_page;
 extern char *cgit_query_search;
 extern char *cgit_query_head;
 extern char *cgit_query_sha1;
 extern char *cgit_query_sha2;
 extern char *cgit_query_path;
 extern char *cgit_query_name;
 extern int   cgit_query_ofs;
 
 extern int htmlfd;
 
 extern int cgit_get_cmd_index(const char *cmd);
 extern struct repoinfo *cgit_get_repoinfo(const char *url);
 extern void cgit_global_config_cb(const char *name, const char *value);
 extern void cgit_repo_config_cb(const char *name, const char *value);
 extern void cgit_querystring_cb(const char *name, const char *value);
 
 extern int chk_zero(int result, char *msg);
 extern int chk_positive(int result, char *msg);
 
 extern int hextoint(char c);
 
 extern void *cgit_free_commitinfo(struct commitinfo *info);
 
 extern int cgit_diff_files(const unsigned char *old_sha1,
                            const unsigned char *new_sha1,
                            linediff_fn fn);
 
 extern void cgit_diff_tree(const unsigned char *old_sha1,
                            const unsigned char *new_sha1,
                            filepair_fn fn);
 
 extern void cgit_diff_commit(struct commit *commit, filepair_fn fn);
 
 extern char *fmt(const char *format,...);
 
 extern void html(const char *txt);
 extern void htmlf(const char *format,...);
 extern void html_txt(char *txt);
 extern void html_ntxt(int len, char *txt);
 extern void html_attr(char *txt);
 extern void html_hidden(char *name, char *value);
 extern void html_link_open(char *url, char *title, char *class);
 extern void html_link_close(void);
 extern void html_filemode(unsigned short mode);
 extern int html_include(const char *filename);
 
 extern int cgit_read_config(const char *filename, configfn fn);
 extern int cgit_parse_query(char *txt, configfn fn);
 extern struct commitinfo *cgit_parse_commit(struct commit *commit);
 extern struct taginfo *cgit_parse_tag(struct tag *tag);
 extern void cgit_parse_url(const char *url);
 
 extern char *cache_safe_filename(const char *unsafe);
 extern int cache_lock(struct cacheitem *item);
 extern int cache_unlock(struct cacheitem *item);
 extern int cache_cancel_lock(struct cacheitem *item);
 extern int cache_exist(struct cacheitem *item);
 extern int cache_expired(struct cacheitem *item);
 
 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);
 extern void cgit_print_docstart(char *title, struct cacheitem *item);
 extern void cgit_print_docend();
 extern void cgit_print_pageheader(char *title, int show_search);
 extern void cgit_print_snapshot_start(const char *mimetype,
                                       const char *filename,
                                       struct cacheitem *item);
 
 extern void cgit_print_repolist(struct cacheitem *item);
 extern void cgit_print_summary();
 extern void cgit_print_log(const char *tip, int ofs, int cnt, char *grep, char *path, int pager);
 extern void cgit_print_blob(struct cacheitem *item, const char *hex, char *path);
 extern void cgit_print_tree(const char *rev, char *path);
 extern void cgit_print_commit(const char *hex);
 extern void cgit_print_diff(const char *head, const char *old_hex, const char *new_hex,
                             char *path);
 extern void cgit_print_snapshot(struct cacheitem *item, const char *hex,
                                 const char *format, const char *prefix,
                                 const char *filename);
 
 #endif /* CGIT_H */
diff --git a/ui-commit.c b/ui-commit.c
index ed5384d..885f870 100644
--- a/ui-commit.c
+++ b/ui-commit.c
@@ -60,180 +60,182 @@ void print_fileinfo(struct fileinfo *info)
         }
 
         html("<tr>");
         htmlf("<td class='mode'>");
         if (is_null_sha1(info->new_sha1)) {
                 html_filemode(info->old_mode);
         } else {
                 html_filemode(info->new_mode);
         }
 
         if (info->old_mode != info->new_mode &&
             !is_null_sha1(info->old_sha1) &&
             !is_null_sha1(info->new_sha1)) {
                 html("<span class='modechange'>[");
                 html_filemode(info->old_mode);
                 html("]</span>");
         }
         htmlf("</td><td class='%s'>", class);
         query = fmt("id=%s&amp;id2=%s&amp;path=%s", sha1_to_hex(info->old_sha1),
                     sha1_to_hex(info->new_sha1), info->new_path);
         html_link_open(cgit_pageurl(cgit_query_repo, "diff", query),
                        NULL, NULL);
         if (info->status == DIFF_STATUS_COPIED ||
             info->status == DIFF_STATUS_RENAMED) {
                 html_txt(info->new_path);
                 htmlf("</a> (%s from ", info->status == DIFF_STATUS_COPIED ?
                       "copied" : "renamed");
                 query2 = fmt("id=%s", sha1_to_hex(info->old_sha1));
                 html_link_open(cgit_pageurl(cgit_query_repo, "view", query2),
                                NULL, NULL);
                 html_txt(info->old_path);
                 html("</a>)");
         } else {
                 html_txt(info->new_path);
                 html("</a>");
         }
         html("</td><td class='right'>");
         htmlf("%d", info->added + info->removed);
         html("</td><td class='graph'>");
         htmlf("<table width='%d%%'><tr>", (max_changes > 100 ? 100 : max_changes));
         htmlf("<td class='add' style='width: %.1f%%;'/>",
               info->added * 100.0 / max_changes);
         htmlf("<td class='rem' style='width: %.1f%%;'/>",
               info->removed * 100.0 / max_changes);
         htmlf("<td class='none' style='width: %.1f%%;'/>",
               (max_changes - info->removed - info->added) * 100.0 / max_changes);
         html("</tr></table></td></tr>\n");
 }
 
 void cgit_count_diff_lines(char *line, int len)
 {
         if (line && (len > 0)) {
                 if (line[0] == '+')
                         lines_added++;
                 else if (line[0] == '-')
                         lines_removed++;
         }
 }
 
 void inspect_filepair(struct diff_filepair *pair)
 {
         files++;
         lines_added = 0;
         lines_removed = 0;
         cgit_diff_files(pair->one->sha1, pair->two->sha1, cgit_count_diff_lines);
         if (files >= slots) {
                 if (slots == 0)
                         slots = 4;
                 else
                         slots = slots * 2;
                 items = xrealloc(items, slots * sizeof(struct fileinfo));
         }
         items[files-1].status = pair->status;
         hashcpy(items[files-1].old_sha1, pair->one->sha1);
         hashcpy(items[files-1].new_sha1, pair->two->sha1);
         items[files-1].old_mode = pair->one->mode;
         items[files-1].new_mode = pair->two->mode;
         items[files-1].old_path = xstrdup(pair->one->path);
         items[files-1].new_path = xstrdup(pair->two->path);
         items[files-1].added = lines_added;
         items[files-1].removed = lines_removed;
         if (lines_added + lines_removed > max_changes)
                 max_changes = lines_added + lines_removed;
         total_adds += lines_added;
         total_rems += lines_removed;
 }
 
 
 void cgit_print_commit(const char *hex)
 {
         struct commit *commit, *parent;
         struct commitinfo *info;
         struct commit_list *p;
         unsigned char sha1[20];
         char *query;
         char *filename;
+        char *tmp;
         int i;
 
         if (get_sha1(hex, sha1)) {
                 cgit_print_error(fmt("Bad object id: %s", hex));
                 return;
         }
         commit = lookup_commit_reference(sha1);
         if (!commit) {
                 cgit_print_error(fmt("Bad commit reference: %s", hex));
                 return;
         }
         info = cgit_parse_commit(commit);
 
         html("<table class='commit-info'>\n");
         html("<tr><th>author</th><td>");
         html_txt(info->author);
         html(" ");
         html_txt(info->author_email);
         html("</td><td class='right'>");
         cgit_print_date(info->author_date, FMT_LONGDATE);
         html("</td></tr>\n");
         html("<tr><th>committer</th><td>");
         html_txt(info->committer);
         html(" ");
         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) {
                         html("<tr><td colspan='3'>");
                         cgit_print_error("Error reading parent commit");
                         html("</td></tr>");
                         continue;
                 }
                 html("<tr><th>parent</th>"
                      "<td colspan='2' class='sha1'>"
                      "<a href='");
                 query = fmt("h=%s", sha1_to_hex(p->item->object.sha1));
                 html_attr(cgit_pageurl(cgit_query_repo, "commit", query));
                 htmlf("'>%s</a> (<a href='",
                       sha1_to_hex(p->item->object.sha1));
                 query = fmt("id=%s&amp;id2=%s", sha1_to_hex(parent->tree->object.sha1),
                             sha1_to_hex(commit->tree->object.sha1));
                 html_attr(cgit_pageurl(cgit_query_repo, "diff", query));
                 html("'>diff</a>)</td></tr>");
         }
         if (cgit_repo->snapshots) {
                 htmlf("<tr><th>download</th><td colspan='2' class='sha1'><a href='");
                 filename = fmt("%s-%s.zip", cgit_query_repo, hex);
                 html_attr(cgit_pageurl(cgit_query_repo, "snapshot",
                                        fmt("id=%s&amp;name=%s", hex, filename)));
                 htmlf("'>%s</a></td></tr>", filename);
         }
         html("</table>\n");
         html("<div class='commit-subject'>");
         html_txt(info->subject);
         html("</div>");
         html("<div class='commit-msg'>");
         html_txt(info->msg);
         html("</div>");
         if (!(commit->parents && commit->parents->next && commit->parents->next->next)) {
                 html("<div class='diffstat-header'>Diffstat</div>");
                 html("<table class='diffstat'>");
                 max_changes = 0;
                 cgit_diff_commit(commit, inspect_filepair);
                 for(i = 0; i<files; i++)
                         print_fileinfo(&items[i]);
                 html("</table>");
                 html("<div class='diffstat-summary'>");
                 htmlf("%d files changed, %d insertions, %d deletions (",
                       files, total_adds, total_rems);
                 query = fmt("h=%s", hex);
                 html_link_open(cgit_pageurl(cgit_query_repo, "diff", query), NULL, NULL);
                 html("show diff</a>)");
                 html("</div>");
         }
         cgit_free_commitinfo(info);
 }
diff --git a/ui-repolist.c b/ui-repolist.c
index e5c6c20..8ade91a 100644
--- a/ui-repolist.c
+++ b/ui-repolist.c
@@ -1,103 +1,100 @@
 /* ui-repolist.c: functions for generating the repolist page
  *
  * Copyright (C) 2006 Lars Hjemli
  *
  * Licensed under GNU General Public License v2
  *   (see COPYING for full license text)
  */
 
 #include "cgit.h"
 #include <time.h>
 
 
 time_t read_agefile(char *path)
 {
         FILE *f;
         static char buf[64], buf2[64];
 
         if (!(f = fopen(path, "r")))
                 return -1;
         fgets(buf, sizeof(buf), f);
         fclose(f);
         if (parse_date(buf, buf2, sizeof(buf2)))
                 return strtoul(buf2, NULL, 10);
         else
                 return 0;
 }
 
 static void print_modtime(struct repoinfo *repo)
 {
         char *path;
         struct stat s;
 
         path = fmt("%s/%s", repo->path, cgit_agefile);
         if (stat(path, &s) == 0) {
                 cgit_print_age(read_agefile(path), -1, NULL);
                 return;
         }
 
         path = fmt("%s/refs/heads/%s", repo->path, repo->defbranch);
         if (stat(path, &s) != 0)
                 return;
         cgit_print_age(s.st_mtime, -1, NULL);
 }
 
 void cgit_print_repolist(struct cacheitem *item)
 {
-        struct repoinfo *repo;
         int i;
         char *last_group = NULL;
 
         cgit_print_docstart(cgit_root_title, item);
         cgit_print_pageheader(cgit_root_title, 0);
 
         html("<table class='list nowrap'>");
         if (cgit_index_header) {
                 html("<tr class='nohover'><td colspan='5' class='include-block'>");
                 html_include(cgit_index_header);
                 html("</td></tr>");
         }
         html("<tr class='nohover'>"
              "<th class='left'>Name</th>"
              "<th class='left'>Description</th>"
              "<th class='left'>Owner</th>"
              "<th class='left'>Idle</th>"
              "<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>");
         cgit_print_docend();
 }
diff --git a/ui-shared.c b/ui-shared.c
index aba93e8..9ab6409 100644
--- a/ui-shared.c
+++ b/ui-shared.c
@@ -1,185 +1,249 @@
 /* ui-shared.c: common web output functions
  *
  * Copyright (C) 2006 Lars Hjemli
  *
  * Licensed under GNU General Public License v2
  *   (see COPYING for full license text)
  */
 
 #include "cgit.h"
 
 const char cgit_doctype[] =
 "<!DOCTYPE html PUBLIC \"-//W3C//DTD XHTML 1.0 Transitional//EN\"\n"
 "  \"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd\">\n";
 
 static char *http_date(time_t t)
 {
         static char day[][4] =
                 {"Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"};
         static char month[][4] =
                 {"Jan", "Feb", "Mar", "Apr", "May", "Jun",
                  "Jul", "Aug", "Sep", "Oct", "Now", "Dec"};
         struct tm *tm = gmtime(&t);
         return fmt("%s, %02d %s %04d %02d:%02d:%02d GMT", day[tm->tm_wday],
                    tm->tm_mday, month[tm->tm_mon], 1900+tm->tm_year,
                    tm->tm_hour, tm->tm_min, tm->tm_sec);
 }
 
 static long ttl_seconds(long ttl)
 {
         if (ttl<0)
                 return 60 * 60 * 24 * 365;
         else
                 return ttl * 60;
 }
 
 void cgit_print_error(char *msg)
 {
         html("<div class='error'>");
         html_txt(msg);
         html("</div>\n");
 }
 
 char *cgit_rooturl()
 {
         if (cgit_virtual_root)
                 return fmt("%s/", cgit_virtual_root);
         else
                 return cgit_script_name;
 }
 
 char *cgit_repourl(const char *reponame)
 {
         if (cgit_virtual_root) {
                 return fmt("%s/%s/", cgit_virtual_root, reponame);
         } else {
                 return fmt("?r=%s", reponame);
         }
 }
 
 char *cgit_pageurl(const char *reponame, const char *pagename,
                    const char *query)
 {
         if (cgit_virtual_root) {
                 if (query)
                         return fmt("%s/%s/%s/?%s", cgit_virtual_root, reponame,
                                    pagename, query);
                 else
                         return fmt("%s/%s/%s/", cgit_virtual_root, reponame,
                                    pagename);
         } else {
                 if (query)
                         return fmt("?r=%s&amp;p=%s&amp;%s", reponame, pagename, query);
                 else
                         return fmt("?r=%s&amp;p=%s", reponame, pagename);
         }
 }
 
 char *cgit_currurl()
 {
         if (!cgit_virtual_root)
                 return cgit_script_name;
         else if (cgit_query_page)
                 return fmt("%s/%s/%s/", cgit_virtual_root, cgit_query_repo, cgit_query_page);
         else if (cgit_query_repo)
                 return fmt("%s/%s/", cgit_virtual_root, cgit_query_repo);
         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)
 {
         char buf[64];
         struct tm *time;
 
         time = gmtime(&secs);
         strftime(buf, sizeof(buf)-1, format, time);
         html_txt(buf);
 }
 
 void cgit_print_age(time_t t, time_t max_relative, char *format)
 {
         time_t now, secs;
 
         time(&now);
         secs = now - t;
 
         if (secs > max_relative && max_relative >= 0) {
                 cgit_print_date(t, format);
                 return;
         }
 
         if (secs < TM_HOUR * 2) {
                 htmlf("<span class='age-mins'>%.0f min.</span>",
                       secs * 1.0 / TM_MIN);
                 return;
         }
         if (secs < TM_DAY * 2) {
                 htmlf("<span class='age-hours'>%.0f hours</span>",
                       secs * 1.0 / TM_HOUR);
                 return;
         }
         if (secs < TM_WEEK * 2) {
                 htmlf("<span class='age-days'>%.0f days</span>",
                       secs * 1.0 / TM_DAY);
                 return;
         }
         if (secs < TM_MONTH * 2) {
                 htmlf("<span class='age-weeks'>%.0f weeks</span>",
                       secs * 1.0 / TM_WEEK);
                 return;
         }
         if (secs < TM_YEAR * 2) {
                 htmlf("<span class='age-months'>%.0f months</span>",
                       secs * 1.0 / TM_MONTH);
                 return;
         }
         htmlf("<span class='age-years'>%.0f years</span>",
               secs * 1.0 / TM_YEAR);
 }
 
 void cgit_print_docstart(char *title, struct cacheitem *item)
 {
         html("Content-Type: text/html; charset=utf-8\n");
         htmlf("Last-Modified: %s\n", http_date(item->st.st_mtime));
         htmlf("Expires: %s\n", http_date(item->st.st_mtime +
                                          ttl_seconds(item->ttl)));
         html("\n");
         html(cgit_doctype);
         html("<html>\n");
         html("<head>\n");
         html("<title>");
         html_txt(title);
         html("</title>\n");
         htmlf("<meta name='generator' content='cgit v%s'/>\n", cgit_version);
         html("<link rel='stylesheet' type='text/css' href='");
         html_attr(cgit_css);
         html("'/>\n");
         html("</head>\n");
         html("<body>\n");
 }
 
 void cgit_print_docend()
 {
         html("</td></tr></table>");
         html("</body>\n</html>\n");
 }
 
 void cgit_print_pageheader(char *title, int show_search)
 {
         html("<table id='layout'>");
         html("<tr><td id='header'>");
         html(cgit_root_title);
         html("</td><td id='logo'>");
         html("<a href='");
         html_attr(cgit_logo_link);
         htmlf("'><img src='%s' alt='logo'/></a>", cgit_logo);
         html("</td></tr>");
         html("<tr><td id='crumb'>");
         htmlf("<a href='%s'>root</a>", cgit_rooturl());
         if (cgit_query_repo) {
                 htmlf(" : <a href='%s'>", cgit_repourl(cgit_repo->url));
                 html_txt(cgit_repo->name);
                 htmlf("</a> : %s", title);
         }
diff --git a/ui-tree.c b/ui-tree.c
index db0bef6..3b82374 100644
--- a/ui-tree.c
+++ b/ui-tree.c
@@ -1,213 +1,216 @@
 /* ui-tree.c: functions for tree output
  *
  * Copyright (C) 2006 Lars Hjemli
  *
  * Licensed under GNU General Public License v2
  *   (see COPYING for full license text)
  */
 
 #include "cgit.h"
 
 char *curr_rev;
 char *match_path;
 int header = 0;
 
 static void print_object(const unsigned char *sha1, char *path)
 {
         enum object_type type;
         unsigned char *buf;
         unsigned long size, lineno, start, idx;
 
         type = sha1_object_info(sha1, &size);
         if (type == OBJ_BAD) {
                 cgit_print_error(fmt("Bad object name: %s",
                                      sha1_to_hex(sha1)));
                 return;
         }
 
         buf = read_sha1_file(sha1, &type, &size);
         if (!buf) {
                 cgit_print_error(fmt("Error reading object %s",
                                      sha1_to_hex(sha1)));
                 return;
         }
 
         html("<table class='blob'>\n");
         idx = 0;
         start = 0;
         lineno = 0;
         while(idx < size) {
                 if (buf[idx] == '\n') {
                         buf[idx] = '\0';
                         htmlf("<tr><td class='no'>%d</td><td class='txt'>",
                               ++lineno);
                         html_txt(buf + start);
                         html("</td></tr>\n");
                         start = idx + 1;
                 }
                 idx++;
         }
         html("</table>\n");
 }
 
 
 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>",
                       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 ");
         if (S_ISDIRLNK(mode)) {
                 htmlf("class='ls-mod'><a href='");
                 html_attr(fmt(cgit_repo->module_link,
                               name,
                               sha1_to_hex(sha1)));
+                html("'>");
+                html_txt(name);
+                html("</a>");
         } else if (S_ISDIR(mode)) {
-                html("class='ls-dir'><a href='");
-                html_attr(url);
+                html("class='ls-dir'>");
+                cgit_tree_link(name, NULL, NULL, cgit_query_head,
+                               curr_rev, fullpath);
         } else {
-                html("class='ls-blob'><a href='");
-                html_attr(url);
+                html("class='ls-blob'>");
+                cgit_tree_link(name, NULL, NULL, cgit_query_head,
+                               curr_rev, fullpath);
         }
-        htmlf("'>%s</a></td>", name);
-        htmlf("<td class='filesize'>%li</td>", size);
+        htmlf("</td><td class='filesize'>%li</td>", size);
 
         html("<td class='links'><a href='");
         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, "log", qry);
         html_attr(url);
         html("' class='button'>H</a></td>");
         html("</tr>\n");
         free(name);
         return 0;
 }
 
 static void ls_head()
 {
         html("<table class='list'>\n");
         html("<tr class='nohover'>");
         html("<th class='left'>Mode</th>");
         html("<th class='left'>Name</th>");
         html("<th class='right'>Size</th>");
         html("<th/>");
         html("</tr>\n");
         header = 1;
 }
 
 static void ls_tail()
 {
         if (!header)
                 return;
         html("</table>\n");
         header = 0;
 }
 
 static void ls_tree(const unsigned char *sha1, char *path)
 {
         struct tree *tree;
 
         tree = parse_tree_indirect(sha1);
         if (!tree) {
                 cgit_print_error(fmt("Not a tree object: %s",
                                      sha1_to_hex(sha1)));
                 return;
         }
 
         ls_head();
         read_tree_recursive(tree, "", 0, 1, NULL, ls_item);
         ls_tail();
 }
 
 
 static int walk_tree(const unsigned char *sha1, const char *base, int baselen,
                      const char *pathname, unsigned mode, int stage)
 {
         static int state;
         static char buffer[PATH_MAX];
         char *url;
 
         if (state == 0) {
                 memcpy(buffer, base, baselen);
                 strcpy(buffer+baselen, pathname);
                 url = cgit_pageurl(cgit_query_repo, "tree",
                                    fmt("h=%s&amp;path=%s", curr_rev, buffer));
-                htmlf(" / <a href='");
-                html_attr(url);
-                html("'>");
-                html_txt(xstrdup(pathname));
-                html("</a>");
+                html("/");
+                cgit_tree_link(xstrdup(pathname), NULL, NULL, cgit_query_head,
+                               curr_rev, buffer);
 
                 if (strcmp(match_path, buffer))
                         return READ_TREE_RECURSIVE;
 
                 if (S_ISDIR(mode)) {
                         state = 1;
                         ls_head();
                         return READ_TREE_RECURSIVE;
                 } else {
                         print_object(sha1, buffer);
                         return 0;
                 }
         }
         ls_item(sha1, base, baselen, pathname, mode, stage);
         return 0;
 }
 
 
 /*
  * Show a tree or a blob
  *   rev:  the commit pointing at the root tree object
  *   path: path to tree or blob
  */
 void cgit_print_tree(const char *rev, char *path)
 {
         unsigned char sha1[20];
         struct commit *commit;
         const char *paths[] = {path, NULL};
 
         if (!rev)
                 rev = cgit_query_head;
 
         curr_rev = xstrdup(rev);
         if (get_sha1(rev, sha1)) {
                 cgit_print_error(fmt("Invalid revision name: %s", rev));
                 return;
         }
         commit = lookup_commit_reference(sha1);
         if (!commit || parse_commit(commit)) {
                 cgit_print_error(fmt("Invalid commit reference: %s", rev));
                 return;
         }
 
         html("path: <a href='");
         html_attr(cgit_pageurl(cgit_query_repo, "tree", fmt("h=%s", rev)));
         html("'>root</a>");
 
         if (path == NULL) {
                 ls_tree(commit->tree->object.sha1, NULL);
                 return;
         }
 
         match_path = path;
         read_tree_recursive(commit->tree, NULL, 0, 0, paths, walk_tree);
         ls_tail();
 }