fix: TypeError when watchOptions.ignored is not an array - fixes #1563

Author: shakyShane

lib/cli/transforms/copyCLIIgnoreToWatchOptions.ts

@@ -5,7 +5,6 @@ export function copyCLIIgnoreToWatchOptions(incoming) {
         return incoming;
     }
     return incoming.updateIn(["watchOptions", "ignored"], List([]), ignored => {
-        const userIgnore = List([]).concat(incoming.get("ignore"));
-        return ignored.concat(userIgnore);
+        return List([]).concat(ignored, incoming.get("ignore"));
     });
 }

test/specs/cli/cli.options.watch.js

@@ -122,4 +122,17 @@ describe("CLI: Options: Merging Watch Option", function() {
             config.getIn(["watchOptions", "ignored"]).contains("*.json2")
         );
     });
+    it("merges from server, serveStatic + ignore path + watchOptions.ignore (string)", function() {
+        var input = {
+            server: ["."],
+            watch: true,
+            ignore: ["*.json", "*.json2"],
+            watchOptions: { ignored: "*.txt" }
+        };
+        var config = merge(input);
+
+        assert.ok(config.getIn(["watchOptions", "ignored"]).contains("*.json"));
+        assert.ok(config.getIn(["watchOptions", "ignored"]).contains("*.json2"));
+        assert.ok(config.getIn(["watchOptions", "ignored"]).contains("*.txt"));
+    });
 });