feat: add new 'cwd' option

Close #226

README.md

@@ -24,6 +24,7 @@ module.exports = {
   plugins: [
     license({
       sourceMap: true,
+      cwd: '.', // Default is process.cwd()
 
       banner: {
         file: path.join(__dirname, 'LICENSE'),
@@ -92,6 +93,8 @@ license({
 
 ## Changelogs
 
+- 0.6.0
+  - Add `cwd` option to specify custom working directory (optional option).
 - 0.5.0
   - Feat: Sourcemap is now enable by default to ensure compatibility with other rollup plugins.
   - Fix: Add compatibility with rollup >= 0.48.0 (the new `sourcemap` option).

src/license-plugin.js

@@ -48,7 +48,7 @@ class LicensePlugin {
     this.name = 'rollup-plugin-license';
 
     this._options = options;
-    this._cwd = process.cwd();
+    this._cwd = options.cwd || process.cwd();
     this._dependencies = {};
     this._pkg = require(path.join(this._cwd, 'package.json'));
     this._debug = options.debug || false;

test/license-plugin.spec.js

@@ -46,6 +46,16 @@ describe('LicensePlugin', () => {
     expect(plugin._dependencies).toEqual({});
   });
 
+  it('should initialize instance with custom cwd', () => {
+    const cwd = path.join(__dirname, 'fixtures', 'fake-package');
+    const plugin = new LicensePlugin({
+      cwd,
+    });
+
+    expect(plugin._cwd).toBeDefined();
+    expect(plugin._cwd).toBe(cwd);
+  });
+
   it('should initialize instance with sourceMap = false', () => {
     const plugin = new LicensePlugin({
       sourceMap: false,