[PATCH v8 1/1] ui-shared: allow to split the repository link

[Petr Vorel]

Teach cgit split the repository link in the top of repository "summary"
view. This emulates the same behaviour as it's in gitweb.

This behaviour is not implemented for repositories which have
"repo.name" set different than "repo.url".

Signed-off-by: Petr Vorel <petr.vorel at gmail.com>
Cc: "Jason A. Donenfeld" <Jason at zx2c4.com>
Cc: John Keeping <john at keeping.me.uk>
Reviewed-by: John Keeping <john at keeping.me.uk>
---
v7->v8: add missing free().
---
 cgitrc.5.txt |  4 +++-
 ui-shared.c  | 28 +++++++++++++++++++++++++++-
 2 files changed, 30 insertions(+), 2 deletions(-)

diff --git a/cgitrc.5.txt b/cgitrc.5.txt
index 9fcf445..500b7ee 100644
--- a/cgitrc.5.txt
+++ b/cgitrc.5.txt
@@ -604,7 +604,9 @@ repo.source-filter::
 
 repo.url::
 	The relative url used to access the repository. This must be the first
-	setting specified for each repo. Default value: none.
+	setting specified for each repo. Unless repo.url is different from
+	repo.name, cgit splits the repository link in the top of repository
+	"summary" view. Default value: none.
 
 
 REPOSITORY-SPECIFIC CGITRC FILE
diff --git a/ui-shared.c b/ui-shared.c
index 2e4fcd9..b889260 100644
--- a/ui-shared.c
+++ b/ui-shared.c
@@ -936,7 +936,33 @@ static void print_header(void)
 	if (ctx.repo) {
 		cgit_index_link("index", NULL, NULL, NULL, NULL, 0, 1);
 		html(" : ");
-		cgit_summary_link(ctx.repo->name, ctx.repo->name, NULL, NULL);
+
+		/*
+		 * NOTE: If repo.name and repo.url are different, we don't split link as
+		 * it wouldn't make sense to split the path.
+		 */
+		if (!strcmp(ctx.repo->name, ctx.repo->url)) {
+			char *name = ctx.repo->name;
+			char *start = name;
+			for (;;) {
+				char *delim = strchr(start, '/');
+				if (delim)
+					*delim = '\0';
+
+				html_link_open(cgit_repourl(name), NULL, NULL);
+				html_ntxt(strlen(start), start);
+				html_link_close();
+
+				if (!delim)
+					break;
+				*delim = '/';
+				html("/");
+				start = delim + 1;
+			}
+			free(name);
+		} else
+			cgit_summary_link(ctx.repo->name, ctx.repo->name, NULL, NULL);
+
 		if (ctx.env.authenticated) {
 			html("</td><td class='form'>");
 			html("<form method='get'>\n");
-- 
2.11.0