doc/_static: match with branch encoded in pathname in URL

since we've migrated to RTD, a typical URL of ceph document looks like

https://docs.ceph.com/en/octopus/rados/

so instead of match "/docs.ceph.com/docs/<branch-name>/", we should
better match "/en/<branch-name>". in this change,

* do not include the domain name in the pattern to be matched,
  it's not necessary.
* match with "/en/<branch-name>/"

Signed-off-by: Kefu Chai <kchai@redhat.com>

diff --git a/doc/_static/js/ceph.js b/doc/_static/js/ceph.js
index 64107c66ed79ee4ebbc90287a725f784ee2b5374..37e54e5ed99f2349c6f2475c6e21354c13807a84 100644 (file)
--- a/doc/_static/js/ceph.js
+++ b/doc/_static/js/ceph.js
@@ -20,8 +20,8 @@ $(function() {
   }
 
   function get_branch() {
-    var url = window.location.href;
-    var res = url.match(/docs.ceph.com\/docs\/([a-z]+)\/?/i)
+    var pathname = window.location.pathname;
+    var res = pathname.match(/en\/([a-z]+)\/?/i)
     if (res) {
       return res[1]
     }