Add git_log_link() and fix bug in generic repolink function

The generic repolink function compared head with cgit_query_head, which
almost always would be the same pointer. The test now compares with
repo.defbranch, which is the wanted behavour.

Bug discovered while adding cgit_log_link(), so this commit also contain
that change.

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

5 files changed, 24 insertions, 20 deletions

diff --git a/cgit.h b/cgit.h
index 9a19c97..b2f6361 100644
--- a/cgit.h
+++ b/cgit.h
@@ -110,120 +110,122 @@ 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_log_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-repolist.c b/ui-repolist.c
index 8ade91a..2018dab 100644
--- a/ui-repolist.c
+++ b/ui-repolist.c
@@ -1,100 +1,98 @@
 /* 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)
 {
         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++) {
                 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(cgit_repo->group);
                         html("</td></tr>");
                         last_group = cgit_repo->group;
                 }
                 htmlf("<tr><td class='%s'>",
                       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, cgit_repo->desc);
                 html("</td><td>");
                 html_txt(cgit_repo->owner);
                 html("</td><td>");
                 print_modtime(cgit_repo);
                 html("</td><td>");
                 html_link_open(cgit_repourl(cgit_repo->url),
                                "Summary", "button");
                 html("S</a>");
-                html_link_open(cgit_pageurl(cgit_repo->name, "log", NULL),
-                               "Log", "button");
-                html("L</a>");
+                cgit_log_link("L", "Log", "button", NULL, NULL, NULL);
                 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 657e8af..64ee79c 100644
--- a/ui-shared.c
+++ b/ui-shared.c
@@ -34,217 +34,229 @@ static long ttl_seconds(long ttl)
 }
 
 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 && strcmp(head, cgit_query_head)) {
+        if (head && strcmp(head, cgit_repo->defbranch)) {
                 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)
+static char *reporevlink(char *page, char *name, char *title, char *class,
+                         char *head, char *rev, char *path)
 {
         char *delim;
 
-        delim = repolink(title, class, "tree", head, path);
+        delim = repolink(title, class, page, head, path);
         if (rev && strcmp(rev, cgit_query_head)) {
                 html(delim);
                 html("id=");
                 html_attr(rev);
         }
         html("'>");
         html_txt(name);
         html("</a>");
 }
 
+void cgit_tree_link(char *name, char *title, char *class, char *head,
+                    char *rev, char *path)
+{
+        reporevlink("tree", name, title, class, head, rev, path);
+}
+
+void cgit_log_link(char *name, char *title, char *class, char *head,
+                   char *rev, char *path)
+{
+        reporevlink("log", name, title, class, head, rev, path);
+}
+
 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);
         }
         html("</td>");
diff --git a/ui-summary.c b/ui-summary.c
index 4bda4c2..29b76e3 100644
--- a/ui-summary.c
+++ b/ui-summary.c
@@ -1,128 +1,124 @@
 /* ui-summary.c: functions for generating repo summary page
  *
  * Copyright (C) 2006 Lars Hjemli
  *
  * Licensed under GNU General Public License v2
  *   (see COPYING for full license text)
  */
 
 #include "cgit.h"
 
 static int header;
 
 static int cgit_print_branch_cb(const char *refname, const unsigned char *sha1,
                                 int flags, void *cb_data)
 {
         struct commit *commit;
         struct commitinfo *info;
         char buf[256], *url;
 
         strncpy(buf, refname, sizeof(buf));
         commit = lookup_commit(sha1);
         // object is not really parsed at this point, because of some fallout
         // from previous calls to git functions in cgit_print_log()
         commit->object.parsed = 0;
         if (commit && !parse_commit(commit)){
                 info = cgit_parse_commit(commit);
                 html("<tr><td>");
-                url = cgit_pageurl(cgit_query_repo, "log",
-                                   fmt("h=%s", refname));
-                html_link_open(url, NULL, NULL);
-                html_txt(buf);
-                html_link_close();
+                cgit_log_link(refname, NULL, NULL, refname, NULL, NULL);
                 html("</td><td>");
                 cgit_print_age(commit->date, -1, NULL);
                 html("</td><td>");
                 html_txt(info->author);
                 html("</td><td>");
                 url = cgit_pageurl(cgit_query_repo, "commit",
                                    fmt("h=%s", sha1_to_hex(sha1)));
                 html_link_open(url, NULL, NULL);
                 html_ntxt(cgit_max_msg_len, info->subject);
                 html_link_close();
                 html("</td></tr>\n");
                 cgit_free_commitinfo(info);
         } else {
                 html("<tr><td>");
                 html_txt(buf);
                 html("</td><td colspan='3'>");
                 htmlf("*** bad ref %s ***", sha1_to_hex(sha1));
                 html("</td></tr>\n");
         }
         return 0;
 }
 
 
 static void cgit_print_object_ref(struct object *obj)
 {
         char *page, *arg, *url;
 
         if (obj->type == OBJ_COMMIT) {
                 page = "commit";
                 arg = "h";
         } else if (obj->type == OBJ_TREE) {
                 page = "tree";
                 arg = "id";
         } else {
                 page = "view";
                 arg = "id";
         }
 
         url = cgit_pageurl(cgit_query_repo, page,
                            fmt("%s=%s", arg, sha1_to_hex(obj->sha1)));
         html_link_open(url, NULL, NULL);
         htmlf("%s %s", typename(obj->type),
               sha1_to_hex(obj->sha1));
         html_link_close();
 }
 
 static void print_tag_header()
 {
         html("<tr class='nohover'><th class='left'>Tag</th>"
              "<th class='left'>Age</th>"
              "<th class='left'>Author</th>"
              "<th class='left'>Reference</th></tr>\n");
         header = 1;
 }
 
 static int cgit_print_tag_cb(const char *refname, const unsigned char *sha1,
                                 int flags, void *cb_data)
 {
         struct tag *tag;
         struct taginfo *info;
         struct object *obj;
         char buf[256], *url;
 
         strncpy(buf, refname, sizeof(buf));
         obj = parse_object(sha1);
         if (!obj)
                 return 1;
         if (obj->type == OBJ_TAG) {
                 tag = lookup_tag(sha1);
                 if (!tag || parse_tag(tag) || !(info = cgit_parse_tag(tag)))
                         return 2;
                 if (!header)
                         print_tag_header();
                 html("<tr><td>");
                 url = cgit_pageurl(cgit_query_repo, "view",
                                    fmt("id=%s", sha1_to_hex(sha1)));
                 html_link_open(url, NULL, NULL);
                 html_txt(buf);
                 html_link_close();
                 html("</td><td>");
                 if (info->tagger_date > 0)
                         cgit_print_age(info->tagger_date, -1, NULL);
                 html("</td><td>");
                 if (info->tagger)
                         html(info->tagger);
                 html("</td><td>");
                 cgit_print_object_ref(tag->tagged);
                 html("</td></tr>\n");
         } else {
                 if (!header)
                         print_tag_header();
                 html("<tr><td>");
                 html_txt(buf);
                 html("</td><td colspan='2'/><td>");
                 cgit_print_object_ref(obj);
                 html("</td></tr>\n");
diff --git a/ui-tree.c b/ui-tree.c
index d503bee..e16b638 100644
--- a/ui-tree.c
+++ b/ui-tree.c
@@ -1,198 +1,194 @@
 /* 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;
         }
 
         html("<tr><td class='ls-mode'>");
         html_filemode(mode);
         html("</td><td>");
         if (S_ISDIRLNK(mode)) {
                 htmlf("<a class='ls-mod' href='");
                 html_attr(fmt(cgit_repo->module_link,
                               name,
                               sha1_to_hex(sha1)));
                 html("'>");
                 html_txt(name);
                 html("</a>");
         } else if (S_ISDIR(mode)) {
                 cgit_tree_link(name, NULL, "ls-dir", cgit_query_head,
                                curr_rev, fullpath);
         } else {
                 cgit_tree_link(name, NULL, "ls-blob", cgit_query_head,
                                curr_rev, fullpath);
         }
         htmlf("</td><td class='ls-size'>%li</td>", size);
 
-        html("<td><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("' title='Log' class='button'>L</a></td>");
-        html("</tr>\n");
+        html("<td>");
+        cgit_log_link("L", "Log", "button", cgit_query_head, curr_rev,
+                      fullpath);
+        html("</td></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));
                 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));