ui-blame: Allow syntax highlighting

[ps-cgit] / ui-blame.c

diff --git a/ui-blame.c b/ui-blame.c
index d565fffa697914391d3cdc9cad5b40291307db36..17e2d60dc6981d486cd8bde05a081eb80d74578c 100644 (file)
--- a/ui-blame.c
+++ b/ui-blame.c
@@ -67,15 +67,29 @@ static void emit_blame_entry_linenumber(struct blame_entry *ent)
                htmlf(numberfmt, ++lineno);
 }
 
-static void emit_blame_entry_line(struct blame_scoreboard *sb,
-                                 struct blame_entry *ent)
+static void emit_blame_entry_line_background(struct blame_scoreboard *sb,
+                                            struct blame_entry *ent)
 {
-       const char *cp, *cpend;
+       unsigned long line;
+       size_t len, maxlen = 2;
+       const char* pos, *endpos;
 
-       cp = blame_nth_line(sb, ent->lno);
-       cpend = blame_nth_line(sb, ent->lno + ent->num_lines);
+       for (line = ent->lno; line < ent->lno + ent->num_lines; line++) {
+               html("\n");
+               pos = blame_nth_line(sb, line);
+               endpos = blame_nth_line(sb, line + 1);
+               len = 0;
+               while (pos < endpos) {
+                       len++;
+                       if (*pos++ == '\t')
+                               len = (len + 7) & ~7;
+               }
+               if (len > maxlen)
+                       maxlen = len;
+       }
 
-       html_ntxt(cp, cpend - cp);
+       for (len = 0; len < maxlen - 1; len++)
+               html(" ");
 }
 
 struct walk_tree_context {
@@ -88,6 +102,7 @@ static void print_object(const unsigned char *sha1, const char *path,
                         const char *basename, const char *rev)
 {
        enum object_type type;
+       char *buf;
        unsigned long size;
        struct argv_array rev_argv = ARGV_ARRAY_INIT;
        struct rev_info revs;
@@ -102,6 +117,13 @@ static void print_object(const unsigned char *sha1, const char *path,
                return;
        }
 
+       buf = read_sha1_file(sha1, &type, &size);
+       if (!buf) {
+               cgit_print_error_page(500, "Internal server error",
+                       "Error reading object %s", sha1_to_hex(sha1));
+               return;
+       }
+
        argv_array_push(&rev_argv, "blame");
        argv_array_push(&rev_argv, rev);
        init_revisions(&revs, NULL);
@@ -157,20 +179,37 @@ static void print_object(const unsigned char *sha1, const char *path,
                html("</td>\n");
        }
 
-       /* Lines */
-       html("<td class='lines'>");
+       html("<td class='lines'><div>");
+
+       /* Colored bars behind lines */
+       html("<div>");
        for (ent = sb.ent; ent; ) {
                struct blame_entry *e = ent->next;
-               html("<div class='alt'><pre><code>");
-               emit_blame_entry_line(&sb, ent);
-               html("</code></pre></div>");
+               html("<div class='alt'><pre>");
+               emit_blame_entry_line_background(&sb, ent);
+               html("</pre></div>");
                free(ent);
                ent = e;
        }
-       html("</td>\n");
+       html("</div>");
 
        free((void *)sb.final_buf);
 
+       /* Lines */
+       html("<pre><code>");
+       if (ctx.repo->source_filter) {
+               char *filter_arg = xstrdup(basename);
+               cgit_open_filter(ctx.repo->source_filter, filter_arg);
+               html_raw(buf, size);
+               cgit_close_filter(ctx.repo->source_filter);
+               free(filter_arg);
+       } else {
+               html_txt(buf);
+       }
+       html("</code></pre>");
+
+       html("</div></td>\n");
+
        html("</tr>\n</table>\n");
 
        cgit_print_layout_end();