[PATCH 4/4] repolist: add a git link on front page

[Sebastian Andrzej Siewior]

If links are enabled there will be an additinal "git" links next to
"summary log tree" _if_ the config has clone-prefix set or the
repository has clone_url set. In case the clone-prefix contains multiple
enties then only the first one will be considered.
The intention is to present the git:// link for a given repo early to the user.

Signed-off-by: Sebastian Andrzej Siewior <sebastian at breakpoint.cc>
---
 ui-repolist.c |  1 +
 ui-shared.c   | 35 +++++++++++++++++++++++++++++++++++
 ui-shared.h   |  1 +
 3 files changed, 37 insertions(+)

diff --git a/ui-repolist.c b/ui-repolist.c
index 477a949..b6d56ed 100644
--- a/ui-repolist.c
+++ b/ui-repolist.c
@@ -323,6 +323,7 @@ void cgit_print_repolist()
 			cgit_log_link("log", NULL, "button", NULL, NULL, NULL,
 				      0, NULL, NULL, ctx.qry.showmsg);
 			cgit_tree_link("tree", NULL, "button", NULL, NULL, NULL);
+			cgit_git_link();
 			html("</td>");
 		}
 		html("</tr>\n");
diff --git a/ui-shared.c b/ui-shared.c
index 1ede2b0..5f80de9 100644
--- a/ui-shared.c
+++ b/ui-shared.c
@@ -284,6 +284,41 @@ void cgit_tree_link(const char *name, const char *title, const char *class,
 	reporevlink("tree", name, title, class, head, rev, path);
 }
 
+void cgit_git_link(void)
+{
+	char *url = NULL;
+
+	if (ctx.repo->clone_url)
+		url = strdup(ctx.repo->clone_url);
+	else if (ctx.cfg.clone_prefix) {
+		char *second;
+		char *p;
+		int len;
+
+		p = ctx.cfg.clone_prefix;
+		while (*p == ' ')
+			p++;
+		second = strchr(p, ' ');
+		if (second)
+			*second = '\0';
+		len = snprintf(NULL, 0, "%s/%s", p, ctx.repo->url);
+		if (len < 0)
+			return;
+		len++;
+		url = xmalloc(len);
+		snprintf(url, len, "%s/%s", p, ctx.repo->url);
+		if (second)
+			*second = ' ';
+	}
+	if (!url)
+		return;
+	html("<a class='button'");
+	html(" href='");
+	html_url_path(url);
+	html("'>git</a>");
+	free(url);
+}
+
 void cgit_plain_link(const char *name, const char *title, const char *class,
 		     const char *head, const char *rev, const char *path)
 {
diff --git a/ui-shared.h b/ui-shared.h
index 3e7a91b..2d5d9cd 100644
--- a/ui-shared.h
+++ b/ui-shared.h
@@ -21,6 +21,7 @@ extern void cgit_tag_link(const char *name, const char *title,
 extern void cgit_tree_link(const char *name, const char *title,
 			   const char *class, const char *head,
 			   const char *rev, const char *path);
+extern void cgit_git_link(void);
 extern void cgit_plain_link(const char *name, const char *title,
 			    const char *class, const char *head,
 			    const char *rev, const char *path);
-- 
1.8.5.2