Allow to pass $dirname placeholder for absolute paths

resolvers/webpack/README.md

@@ -42,7 +42,7 @@ settings:
       config: 'webpack.dev.config.js'
 ```
 
-or with explicit config file name:
+or with explicit config file index:
 
 ```yaml
 ---
@@ -53,6 +53,16 @@ settings:
       config-index: 1   # take the config at index 1
 ```
 
+or with explicit config file path relative to your projects's working directory:
+
+```yaml
+---
+settings:
+  import/resolver:
+    webpack:
+      config: './configs/webpack.dev.config.js'
+```
+
 or with explicit config object:
 
 ```yaml

resolvers/webpack/index.js

@@ -44,13 +44,15 @@ exports.resolve = function (source, file, settings) {
 
   var webpackConfig
 
-  var configPath = get(settings, 'config')
+  var _configPath = get(settings, 'config')
     , configIndex = get(settings, 'config-index')
     , env = get(settings, 'env')
     , argv = get(settings, 'argv', {})
     , packageDir
 
-  log('Config path from settings:', configPath)
+  var configPath = typeof _configPath === 'string'
+     ? _configPath.replace(/^\.(?=[/\\])/, path.resolve(path.join(__dirname, '..', '..')))
+     : _configPath;
 
   // see if we've got a config path, a config object, an array of config objects or a config function
   if (!configPath || typeof configPath === 'string') {

resolvers/webpack/test/config.js

@@ -72,6 +72,14 @@ describe("config", function () {
         .and.equal(path.join(__dirname, 'files', 'some', 'absolutely', 'goofy', 'path', 'foo.js'))
   })
 
+  it("finds config object when config uses $PWD path placeholder", function () {
+    var settings = {
+      config: './resolvers/webpack/test/files/some/absolute.path.webpack.config.js',
+    }
+    expect(resolve('foo', file, settings)).to.have.property('path')
+        .and.equal(path.join(__dirname, 'files', 'some', 'absolutely', 'goofy', 'path', 'foo.js'))
+  })
+
   it("finds the first config with a resolve section when config is an array of config objects", function () {
     var settings = {
       config: require(path.join(__dirname, './files/webpack.config.multiple.js')),