Allow NPM config variables. Resolve #1711

packages/bower-config/lib/util/rc.js

@@ -29,6 +29,7 @@ function rc(name, defaults, cwd, argv) {
         !home ? {} : json(path.join(home, '.' + name + 'rc')),
         json(path.join(paths.config, name + 'rc')),
         json(find('.' + name + 'rc', cwd)),
+        env('npm_package_config_' + name + '_'),
         env(name + '_'),
         argvConfig
     ]);

packages/bower-config/test/test.js

@@ -0,0 +1,18 @@
+var assert = require('assert');
+
+describe('NPM Config on package.json', function () {
+    describe('Setting process.env.npm_package_config', function () {
+        /*jshint camelcase:false*/
+        process.env.npm_package_config_bower_directory = 'npm-path';
+        process.env.npm_package_config_bower_colors = false;
+
+        var config = require('../lib/Config').create().load()._config;
+
+        it('should return "npm-path" for "bower_directory"', function () {
+            assert.equal('npm-path', config.directory);
+        });
+        it('should return "false" for "bower_colors"', function () {
+            assert.equal('false', config.colors);
+        });
+    });
+});