From: Will Woods <wwoods@redhat.com>
Date: Fri, 20 Apr 2012 20:20:24 +0000 (-0400)
Subject: url-lib: don't add existing handlers multiple times
X-Git-Tag: 019~94
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=c6a91ec9928f7f09dd70ad597bf96ac60f6b652d;p=thirdparty%2Fdracut.git

url-lib: don't add existing handlers multiple times

Every time url-lib gets imported we end up making the list of handlers
longer with redundant entries. That's silly - we shouldn't add items
that already exist.

Note that this means you'll have to manipulate the handler list yourself
if you want to change the position/priority of existing handlers.
---

diff --git a/modules.d/45url-lib/url-lib.sh b/modules.d/45url-lib/url-lib.sh
index e305a68a5..793014698 100755
--- a/modules.d/45url-lib/url-lib.sh
+++ b/modules.d/45url-lib/url-lib.sh
@@ -43,6 +43,7 @@ add_url_handler() {
     local schemes="$@" scheme=""
     set --
     for scheme in $schemes; do
+        [ "$(get_url_handler $scheme)" = "$handler" ] && continue
         set -- "$@" "$scheme:$handler"
     done
     set -- $@ $url_handler_map # add new items to *front* of list