Merge pull request #3546 from metabase/ci-branch-config

Enable [ci all] on release-* branches + configuration with CIRCLE_BRANCH_REGEX

bin/ci

@@ -74,8 +74,12 @@ lein-test() {
     lein test
 }
 
+if [ -z ${CIRCLE_BRANCH_REGEX+x} ]; then
+    CIRCLE_BRANCH_REGEX='^master|release-.+$'
+fi
+
 is_enabled() {
-    [[ "$CIRCLE_BRANCH" == "master" ]] ||
+    (echo "$CIRCLE_BRANCH" | grep -qE "$CIRCLE_BRANCH_REGEX") ||
     [[ "$CIRCLE_COMMIT_MESSAGE" == *"[ci $1]"* ]] ||
     [[ "$CIRCLE_COMMIT_MESSAGE" == *"[ci all]"* ]]
 }