fix: Fix lib to support babel plugin v3 (#54)

Breaking change: Not compatible with babel-plugin-module-resolver v2.x

.babelrc

@@ -1,4 +1,13 @@
 {
+  "presets": [
+    ["env", {
+      "targets": {
+        "node": 4
+      },
+      "loose": true,
+      "useBuiltIns": true
+    }]
+  ],
   "plugins": [
     ["transform-object-rest-spread", { "useBuiltIns": true }]
   ]

package.json

@@ -30,18 +30,19 @@
   ],
   "dependencies": {
     "pkg-up": "^1.0.0",
-    "resolve": "^1.2.0"
+    "resolve": "^1.3.3"
   },
   "devDependencies": {
-    "babel-cli": "^6.22.2",
-    "babel-core": "^6.22.1",
-    "babel-jest": "^18.0.0",
-    "babel-plugin-module-resolver": "^2.5.0",
-    "babel-plugin-transform-object-rest-spread": "^6.22.0",
-    "eslint": "^3.15.0",
-    "eslint-config-airbnb-base": "^11.0.1",
+    "babel-cli": "^6.24.1",
+    "babel-core": "^6.24.1",
+    "babel-jest": "^19.0.0",
+    "babel-plugin-module-resolver": "^3.0.0-beta.0",
+    "babel-plugin-transform-object-rest-spread": "^6.23.0",
+    "babel-preset-env": "^1.4.0",
+    "eslint": "^3.19.0",
+    "eslint-config-airbnb-base": "^11.1.3",
     "eslint-plugin-import": "^2.2.0",
-    "jest": "^18.1.0",
+    "jest": "^19.0.2",
     "lodash": "^4.17.4",
     "standard-version": "^4.0.0"
   },

src/index.js

@@ -2,7 +2,8 @@ const path = require('path');
 const resolve = require('resolve');
 const pkgUp = require('pkg-up');
 const targetPlugin = require('babel-plugin-module-resolver').default;
-const babelModuleResolver = require('babel-plugin-module-resolver');
+const normalizeOptions = require('babel-plugin-module-resolver/lib/normalizeOptions').default;
+const getRealPath = require('babel-plugin-module-resolver/lib/getRealPath').default;
 const OptionManager = require('babel-core').OptionManager;
 
 function getPlugins(file, target) {
@@ -57,15 +58,20 @@ exports.resolve = (source, file, opts) => {
       extensions: plugin[1] && plugin[1].extensions ? plugin[1].extensions : config.extensions,
     }), { root: [], alias: {}, cwd: projectRootDir });
 
-    const manipulatedOpts = babelModuleResolver.manipulatePluginOptions(pluginOpts);
 
-    const src = babelModuleResolver.mapModule(
-      source, file, manipulatedOpts, path.resolve(manipulatedOpts.cwd),
-    );
+    normalizeOptions(pluginOpts, file);
 
-    const extensions = options.extensions ||
-      manipulatedOpts.extensions ||
-      babelModuleResolver.defaultExtensions;
+    const babelState = {
+      file: {
+        opts: {
+          filename: file,
+        },
+      },
+      opts: pluginOpts,
+    };
+    const src = getRealPath(source, babelState);
+
+    const extensions = options.extensions || pluginOpts.extensions;
 
     return {
       found: true,

test/.babelrc

@@ -4,7 +4,7 @@
       "root": ["./test/examples/**"],
       "alias": {
         "components": "./test/examples/components",
-        "underscore": "npm:lodash"
+        "old-bcore": "babel-core"
       },
       "extensions": [".js", ".customExt"]
     }]

test/index.test.js

@@ -17,10 +17,10 @@ describe('eslint-import-resolver-module-resolver', () => {
   });
 
   it('should return `true` when mapped to a npm module', () => {
-    expect(resolverPlugin.resolve('underscore', path.resolve('./test/examples/file1'), opts))
+    expect(resolverPlugin.resolve('old-bcore', path.resolve('./test/examples/file1'), opts))
       .toEqual({
         found: true,
-        path: path.resolve(__dirname, '../node_modules/lodash/lodash.js'),
+        path: path.resolve(__dirname, '../node_modules/babel-core/index.js'),
       });
   });