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
@@ -151,128 +151,137 @@ td#search input {
         border: solid 1px #333;
         color: #333;
         background-color: #fff;
 }
 
 div#summary {
         vertical-align: top;
         margin-bottom: 1em;
 }
 
 table#downloads {
         float: right;
         border-collapse: collapse;
         border: solid 1px #777;
         margin-left: 0.5em;
         margin-bottom: 0.5em;
 }
 
 table#downloads th {
         background-color: #ccc;
 }
 
 td#content {
         padding: 1em 0.5em;
 }
 
 div#blob {
         border: solid 1px black;
 }
 
 div.error {
         color: red;
         font-weight: bold;
         margin: 1em 2em;
 }
 
 a.ls-blob, a.ls-dir, a.ls-mod {
         font-family: monospace;
 }
 
 td.ls-size {
         text-align: right;
 }
 
 td.ls-size {
         font-family: monospace;
 }
 
 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 {
         text-align: left;
         font-weight: normal;
         padding: 0.1em 1em 0.1em 0.1em;
         vertical-align: top;
 }
 
 table.commit-info td {
         font-weight: normal;
         padding: 0.1em 1em 0.1em 0.1em;
 }
 
 div.commit-subject {
         font-weight: bold;
         font-size: 125%;
         margin: 1.5em 0em 0.5em 0em;
         padding: 0em;
 }
 
 div.commit-msg {
         white-space: pre;
         font-family: monospace;
 }
 
 div.diffstat-header {
         font-weight: bold;
         padding-top: 1.5em;
 }
 
 table.diffstat {
         border-collapse: collapse;
         width: 100%;
         border: solid 1px #aaa;
         background-color: #eee;
 }
 
 table.diffstat tr:hover {
         background-color: #ccc;
 }
 
 table.diffstat th {
         font-weight: normal;
         text-align: left;
         text-decoration: underline;
         padding: 0.1em 1em 0.1em 0.1em;
         font-size: 100%;
 }
 
 table.diffstat td {
diff --git a/ui-tree.c b/ui-tree.c
index 75ce449..634132f 100644
--- a/ui-tree.c
+++ b/ui-tree.c
@@ -1,110 +1,110 @@
 /* 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(" 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;
         enum object_type type;
         unsigned long size = 0;
 
         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>");
         cgit_log_link("log", NULL, "button", cgit_query_head, curr_rev,
                       fullpath, 0);
         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>");