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
@@ -194,24 +194,26 @@ 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);
diff --git a/ui-repolist.c b/ui-repolist.c
index 8ade91a..2018dab 100644
--- a/ui-repolist.c
+++ b/ui-repolist.c
@@ -80,21 +80,19 @@ void cgit_print_repolist(struct cacheitem *item)
                 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
@@ -118,49 +118,61 @@ static char *repolink(char *title, char *class, char *page, char *head,
         } 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)
 {
diff --git a/ui-summary.c b/ui-summary.c
index 4bda4c2..29b76e3 100644
--- a/ui-summary.c
+++ b/ui-summary.c
@@ -16,29 +16,25 @@ static int cgit_print_branch_cb(const char *refname, const unsigned char *sha1,
         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);
diff --git a/ui-tree.c b/ui-tree.c
index d503bee..e16b638 100644
--- a/ui-tree.c
+++ b/ui-tree.c
@@ -83,32 +83,28 @@ static int ls_item(const unsigned char *sha1, const char *base, int baselen,
                 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/>");