Extract clone URL printing to ui-shared.c

This will allow us to reuse the same logic to add clone URL <link/>
elements to the header of all repo-specific pages in order to support
the rel-vcs microformat.

Signed-off-by: John Keeping <john@keeping.me.uk>

1 files changed, 37 insertions, 0 deletions

@@ -727,6 +727,43 @@ void cgit_print_docend()
         html("</body>\n</html>\n");
 }
 
+static void add_clone_urls(void (*fn)(const char *), char *txt, char *suffix)
+{
+        struct strbuf buf = STRBUF_INIT;
+        char *h = txt, *t, c;
+
+        while (h && *h) {
+                while (h && *h == ' ')
+                        h++;
+                if (!*h)
+                        break;
+                t = h;
+                while (t && *t && *t != ' ')
+                        t++;
+                c = *t;
+                *t = 0;
+
+                if (suffix && *suffix) {
+                        strbuf_reset(&buf);
+                        strbuf_addf(&buf, "%s/%s", h, suffix);
+                        h = buf.buf;
+                }
+                fn(h);
+                *t = c;
+                h = t;
+        }
+
+        strbuf_release(&buf);
+}
+
+void cgit_add_clone_urls(void (*fn)(const char *))
+{
+        if (ctx.repo->clone_url)
+                add_clone_urls(fn, expand_macros(ctx.repo->clone_url), NULL);
+        else if (ctx.cfg.clone_prefix)
+                add_clone_urls(fn, ctx.cfg.clone_prefix, ctx.repo->url);
+}
+
 static int print_branch_option(const char *refname, const unsigned char *sha1,
                                int flags, void *cb_data)
 {