Add support for line number in url fragment

With this change, urls like http://hjemli.net/git/cgit/tree/ui-tree.c#43 can
be used to jump directly to the specified line number.

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

2 files changed, 10 insertions, 1 deletions

diff --git a/cgit.css b/cgit.css
index 43a40a3..54bbfcc 100644
--- a/cgit.css
+++ b/cgit.css
@@ -199,32 +199,41 @@ td.ls-size {
 td.ls-mode {
         font-family: monospace;
 }
 
 table.blob {
         margin-top: 0.5em;
         border-top: solid 1px black;
 }
 
 table.blob td.no {
         border-right: solid 1px black;
         color: black;
         background-color: #eee;
         text-align: right;
 }
 
+table.blob td.no a {
+        color: black;
+}
+
+table.blob td.no a:hover {
+        color: black;
+        text-decoration: none;
+}
+
 table.blob td.txt {
         white-space: pre;
         font-family: monospace;
         padding-left: 0.5em;
 }
 
 table.nowrap td {
         white-space: nowrap;
 }
 
 table.commit-info {
         border-collapse: collapse;
         margin-top: 1.5em;
 }
 
 table.commit-info th {
diff --git a/ui-tree.c b/ui-tree.c
index 75ce449..634132f 100644
--- a/ui-tree.c
+++ b/ui-tree.c
@@ -30,33 +30,33 @@ static void print_object(const unsigned char *sha1, char *path)
                 cgit_print_error(fmt("Error reading object %s",
                                      sha1_to_hex(sha1)));
                 return;
         }
 
         html(" blob: <a href='");
         html_attr(cgit_pageurl(cgit_query_repo, "blob", fmt("id=%s", sha1_to_hex(sha1))));
         htmlf("'>%s</a>",sha1_to_hex(sha1));
 
         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'>",
+                        htmlf("<tr><td class='no'><a name='%d'>%1$d</a></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;