Merge pull request #45 from sfrieson/master

Add includes option

README.md

@@ -20,6 +20,8 @@ module.exports = {
     new CircularDependencyPlugin({
       // exclude detection of files based on a RegExp
       exclude: /a\.js|node_modules/,
+      // include specific files based on a RegExp
+      include: /dir/,
       // add errors to webpack instead of warnings
       failOnError: true,
       // allow import cycles that include an asyncronous import,

__tests__/index.test.js

@@ -96,6 +96,28 @@ describe('circular dependency', () => {
     expect(stats.warnings[1]).toMatch(/g\.js/)
   })
 
+  it('can include only specific cyclical deps in the output', async () => {
+    let fs = new MemoryFS()
+    let compiler = webpack({
+      mode: 'development',
+      entry: path.join(__dirname, 'deps/d.js'),
+      output: { path: __dirname },
+      plugins: [
+        new CircularDependencyPlugin({
+          include: /f\.js/
+        })
+      ]
+    })
+    compiler.outputFileSystem = fs
+
+    let runAsync = wrapRun(compiler.run.bind(compiler))
+    let stats = await runAsync()
+    stats.warnings.forEach(warning => {
+      const firstFile = warning.match(/\w+\.js/)[0]
+      expect(firstFile).toMatch(/f\.js/)
+    })
+  })
+
   it(`can handle context modules that have an undefined resource h -> i -> a -> i`, async () => {
     let fs = new MemoryFS()
     let compiler = webpack({

index.js

@@ -7,6 +7,7 @@ class CircularDependencyPlugin {
   constructor(options) {
     this.options = extend({
       exclude: new RegExp('$^'),
+      include: new RegExp('.*'),
       failOnError: false,
       allowAsyncCycles: false,
       onDetected: false,
@@ -26,7 +27,8 @@ class CircularDependencyPlugin {
         for (let module of modules) {
           const shouldSkip = (
             module.resource == null ||
-            plugin.options.exclude.test(module.resource)
+            plugin.options.exclude.test(module.resource) ||
+            !plugin.options.include.test(module.resource)
           )
           // skip the module if it matches the exclude pattern
           if (shouldSkip) {