Map trailer idents and print bare lines as written

1 file changed, 40 insertions, 17 deletions

diff --git a/source/ui-commit.c b/source/ui-commit.c
index b67f5db..ba079a0 100644
--- a/source/ui-commit.c
+++ b/source/ui-commit.c
@@ -1,9 +1,10 @@
 /*
  * The commit page, which shows one commit on its own and is where the log and
- * the ref listings link. It renders the idents, the object ids, the message
- * and any note, then hands off to ui-diff.c for the diff against the first
- * parent. Free text and addresses are written through the repository's commit
- * and email filters, so a site can rewrite either on the way out.
+ * the ref listings link. It renders the idents, the object ids, the message,
+ * the trailer table when the repository asks for one and any note, then hands
+ * off to ui-diff.c for the diff against the first parent. Free text and
+ * addresses are written through the repository's commit, trailer and email
+ * filters, so a site can rewrite any of them on the way out.
  */
 
 #define USE_THE_REPOSITORY_VARIABLE
@@ -19,6 +20,7 @@
 #include "ui-shared.h"
 
 #include <list.h>
+#include <mailmap.h>
 #include <trailer.h>
 
 // The diff below the message is always taken against the first parent alone,
@@ -81,30 +83,46 @@ static void print_filtered_text(const char *text)
 
 /*
  * A value shaped like an ident is written the way the author row is, through
- * the email filter. Anything else goes through the trailer filter when one is
- * set, and otherwise through the commit filter, so the links a site already
- * draws in message text keep appearing on trailer lines.
+ * the mailmap and the email filter, and anything after the address, such as a
+ * role in parentheses, follows as text. Anything else goes through the trailer
+ * filter when one is set, and otherwise through the commit filter, so the
+ * links a site already draws in message text keep appearing on trailer lines.
  */
 static void print_trailer_value(const char *key, const char *value)
 {
 	struct ident_split ident;
-	struct strbuf name = STRBUF_INIT, email = STRBUF_INIT;
+	struct string_list *map;
+	struct strbuf email = STRBUF_INIT;
+	const char *name, *mail, *rest;
+	size_t name_len, mail_len;
 
 	if (!split_ident_line(&ident, value, strlen(value)) &&
 		memchr(ident.mail_begin, '@', ident.mail_end - ident.mail_begin)) {
-		strbuf_add(&name, ident.name_begin, ident.name_end - ident.name_begin);
+		name = ident.name_begin;
+		name_len = ident.name_end - ident.name_begin;
+		mail = ident.mail_begin;
+		mail_len = ident.mail_end - ident.mail_begin;
+		map = cgit_mailmap();
+		if (map)
+			map_user(map, &mail, &mail_len, &name, &name_len);
 		strbuf_addch(&email, '<');
-		strbuf_add(&email, ident.mail_begin, ident.mail_end - ident.mail_begin);
+		strbuf_add(&email, mail, mail_len);
 		strbuf_addch(&email, '>');
 		cgit_open_filter(ctx.repo->email_filter, email.buf, "commit");
-		html_txt(name.buf);
+		html_ntxt(name, name_len);
 		if (ctx.cfg.enable_plain_email) {
 			html(" ");
 			html_txt(email.buf);
 		}
 		cgit_close_filter(ctx.repo->email_filter);
-		strbuf_release(&name);
 		strbuf_release(&email);
+		rest = ident.mail_end + 1;
+		while (isspace((unsigned char)*rest))
+			rest++;
+		if (*rest) {
+			html(" ");
+			html_txt(rest);
+		}
 	} else if (ctx.repo->trailer_filter) {
 		cgit_open_filter(ctx.repo->trailer_filter, key, "commit");
 		html_txt(value);
@@ -114,14 +132,15 @@ static void print_trailer_value(const char *key, const char *value)
 }
 
 /*
- * One row per trailer, except that a run of trailers sharing a key becomes a
- * single row listing every value. A line git kept in the block without being
- * able to split it, such as a cherry-pick note, gets a row of its own.
+ * One row per trailer, except that a run of trailers sharing a key, compared
+ * without regard to case, becomes a single row listing every value. A line git
+ * kept in the block without a value, such as a cherry-pick note or a key with
+ * nothing after its colon, gets a row of its own as written.
  */
 static void print_trailers(const char *msg)
 {
 	struct trailer_iterator iter;
-	struct strbuf key = STRBUF_INIT;
+	struct strbuf key = STRBUF_INIT, line = STRBUF_INIT;
 	int open = 0;
 
 	html("<table class='commit-trailers'>\n");
@@ -131,8 +150,11 @@ static void print_trailers(const char *msg)
 			if (open)
 				html("</td></tr>\n");
 			open = 0;
+			strbuf_reset(&line);
+			strbuf_addstr(&line, iter.raw);
+			strbuf_rtrim(&line);
 			html("<tr><td colspan='2'>");
-			print_filtered_text(iter.key.buf);
+			print_filtered_text(line.buf);
 			html("</td></tr>\n");
 			continue;
 		}
@@ -155,6 +177,7 @@ static void print_trailers(const char *msg)
 	html("</table>\n");
 	trailer_iterator_release(&iter);
 	strbuf_release(&key);
+	strbuf_release(&line);
 }
 
 /*