Ability to declare aliases as an array

tleunen · Dec 8, 2017 · 59dbd49 · 59dbd49
1 parent 3230132
commit 59dbd49
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Showing 2 changed files with 33 additions and 6 deletions.
diff --git a/src/normalizeOptions.js b/src/normalizeOptions.js
@@ -97,13 +97,21 @@ function normalizeAlias(optsAlias) {
     return [];
   }
 
-  const aliasKeys = Object.keys(optsAlias);
+  const aliasArray = Array.isArray(optsAlias) ? optsAlias : [optsAlias];
 
-  return aliasKeys.map(key => (
-    isRegExp(key) ?
-      getAliasPair(key, optsAlias[key]) :
-      getAliasPair(`^${key}(/.*|)$`, `${optsAlias[key]}\\1`)
-  ));
+  return aliasArray.reduce((acc, alias) => {
+    const aliasKeys = Object.keys(alias);
+
+    aliasKeys.forEach((key) => {
+      const aliasPair = isRegExp(key)
+        ? getAliasPair(key, alias[key])
+        : getAliasPair(`^${key}(/.*|)$`, `${alias[key]}\\1`);
+
+      acc.push(aliasPair);
+    });
+
+    return acc;
+  }, []);
 }
 
 function normalizeTransformedFunctions(optsTransformFunctions) {

diff --git a/test/normalizeOptions.test.js b/test/normalizeOptions.test.js
@@ -33,4 +33,23 @@ describe('normalizeOptions', () => {
     expect(result).not.toBe(result2);
     expect(normalizeOptions.recomputations()).toEqual(2);
   });
+
+  it('should correctly normalize alias option if it is an array', () => {
+    const options = {
+      alias: [
+        {
+          foo: 'A',
+          bar: 'B',
+        },
+        {
+          baz: 'C',
+        },
+      ],
+    };
+    const { alias } = normalizeOptions('path/to/file.js', options);
+
+    expect(alias[0][0]).toEqual(/^foo(\/.*|)$/);
+    expect(alias[1][0]).toEqual(/^bar(\/.*|)$/);
+    expect(alias[2][0]).toEqual(/^baz(\/.*|)$/);
+  });
 });