Add support for automatic and custom clone urls

This adds support for two new parameters to cgitrc: clone-prefix and
repo.clone-url.

If clone-prefix is specified, all repos will get a clone url printed in the
sidebar; the url is generated by clone-prefix + repo.url.

Additionally, each repo can specify repo.clone-url which will override any
such auto-generated url.

Signed-off-by: Lars Hjemli <hjemli@gmail.com>

cgit.h

@@ -75,6 +75,7 @@ struct repoinfo {
 	char *group;
 	char *module_link;
 	char *readme;
+	char *clone_url;
 	int snapshots;
 	int enable_log_filecount;
 	int enable_log_linecount;
@@ -140,6 +141,7 @@ extern char *cgit_script_name;
 extern char *cgit_cache_root;
 extern char *cgit_repo_group;
 extern char *cgit_robots;
+extern char *cgit_clone_prefix;
 
 extern int cgit_nocache;
 extern int cgit_snapshots;

cgitrc

@@ -116,6 +116,11 @@
 #module-link=./?repo=%s&page=commit&id=%s
 
 
+## Shared prefix which, when combined with repo url, becomes the url used
+## to clone the repo
+#clone-prefix=
+
+
 ## Number of chars shown of repo description (in repolist view)
 #max-repodesc-length=60
 
@@ -167,12 +172,14 @@
 #repo.enable-log-linecount=0			## override the default linecount setting
 #repo.module-link=/git/%s/commit/?id=%s		## override the standard module-link
 #repo.readme=info/web/readme			## specify a file to include on summary page
+#repo.clone-url=git://hjemli.net/pub/git/cgit
 
 ## Additional repositories grouped under "mirrors"
 #repo.group=mirrors
 
 #repo.url=git
 #repo.path=/pub/git/git
+#repo.clone-url=git://hjemli.net/pub/git/git
 #
 #repo.url=linux
 #repo.path=/pub/git/linux

shared.c

@@ -27,6 +27,7 @@ char *cgit_script_name  = CGIT_SCRIPT_NAME;
 char *cgit_cache_root   = CGIT_CACHE_ROOT;
 char *cgit_repo_group   = NULL;
 char *cgit_robots       = "index, nofollow";
+char *cgit_clone_prefix = NULL;
 
 int cgit_nocache               =  0;
 int cgit_snapshots             =  0;
@@ -200,6 +201,8 @@ void cgit_global_config_cb(const char *name, const char *value)
 		cgit_renamelimit = atoi(value);
 	else if (!strcmp(name, "robots"))
 		cgit_robots = xstrdup(value);
+	else if (!strcmp(name, "clone-prefix"))
+		cgit_clone_prefix = xstrdup(value);
 	else if (!strcmp(name, "repo.group"))
 		cgit_repo_group = xstrdup(value);
 	else if (!strcmp(name, "repo.url"))
@@ -208,6 +211,8 @@ void cgit_global_config_cb(const char *name, const char *value)
 		cgit_repo->name = xstrdup(value);
 	else if (cgit_repo && !strcmp(name, "repo.path"))
 		cgit_repo->path = trim_end(value, '/');
+	else if (cgit_repo && !strcmp(name, "repo.clone-url"))
+		cgit_repo->clone_url = xstrdup(value);
 	else if (cgit_repo && !strcmp(name, "repo.desc"))
 		cgit_repo->desc = xstrdup(value);
 	else if (cgit_repo && !strcmp(name, "repo.owner"))

ui-shared.c

@@ -460,6 +460,7 @@ void cgit_print_pageheader(char *title, int show_search)
 {
 	static const char *default_info = "This is cgit, a fast webinterface for git repositories";
 	int header = 0;
+	char *url;
 
 	html("<table id='layout' summary=''>\n");
 	html("<tr><td id='sidebar'>\n");
@@ -492,6 +493,22 @@ void cgit_print_pageheader(char *title, int show_search)
 
 		for_each_ref(print_archive_ref, &header);
 
+		if (cgit_repo->clone_url || cgit_clone_prefix) {
+			html("<h1>clone</h1>\n");
+			if (cgit_repo->clone_url)
+				url = cgit_repo->clone_url;
+			else
+				url = fmt("%s%s", cgit_clone_prefix,
+					  cgit_repo->url);
+			html("<a class='menu' href='");
+			html_attr(url);
+			html("' title='");
+			html_attr(url);
+			html("'>\n");
+			html_txt(strrpart(url, 20));
+			html("</a>\n");
+		}
+
 		html("<h1>branch</h1>\n");
 		html("<form method='get' action=''>\n");
 		add_hidden_formfields(0, 1, cgit_query_page);