CI: don’t run it except on master

1 files changed, 7 insertions, 0 deletions

diff --git a/hooks/update b/hooks/update
index 63b33e7..6dfa013 100755
--- a/hooks/update
+++ b/hooks/update
@@ -21,6 +21,13 @@ oldrev="$2"
 newrev="$3"
 zero=$(guix environment --ad-hoc git -- git hash-object --stdin </dev/null | tr '[0-9a-f]' '0')
 span="^$oldrev $newrev"
+
+if test "x$refname" != "xrefs/heads/master"
+then
+    >&2 echo "No CI for $refname, it’s not master"
+    exit 0
+fi
+
 if test "x$oldrev" = "x$zero"
 then
     >&2 echo "Creating a new branch, $refname..."