Merge pull request #71 from oklas/autoscan

feat: autoscan

Author: oklas

example/main/config-overrides.js

@@ -1,6 +1,8 @@
 const {aliasWebpack, aliasJest} = require('react-app-alias')
 
-const options = {}
+const options = {
+  autoscan: 'src',
+}
 
 module.exports = aliasWebpack(options)
 module.exports.jest = aliasJest(options)

example/main/src/App.test.tsx

@@ -8,6 +8,12 @@ test('renders text', () => {
   expect(linkElement).toBeInTheDocument();
 });
 
+test('renders internal component from src', () => {
+  render(<App />);
+  const nearElement = screen.getByText(/Internal/i);
+  expect(nearElement).toBeInTheDocument();
+});
+
 test('renders component from near src', () => {
   render(<App />);
   const nearElement = screen.getByText(/Near src/i);

example/main/src/App.tsx

@@ -1,11 +1,13 @@
 import React from 'react'
 import NearSrc from 'near-src/NearSrc'
+import Internal from 'Internal/index'
 import './App.css'
 
 function App() {
   return (
     <div className="App">
       <h2>Main</h2>
+      <Internal />
       <NearSrc />
     </div>
   );

example/main/src/Internal/index.tsx

@@ -0,0 +1,9 @@
+import React from 'react'
+
+function Internal() {
+  return (
+    <h3>Internal</h3>
+  )
+}
+
+export default Internal

packages/react-app-alias/src/index.js

@@ -99,6 +99,30 @@ function aliasJest(options) {
   }
 }
 
+function autoscan(tasks) {
+  const dirlist = dir =>
+    fs.readdirSync(dir).filter(
+       file => fs.statSync(path.resolve(dir, file)).isDirectory())
+  if(!Array.isArray(tasks)) tasks = tasks ? [tasks] : []
+  tasks = tasks.map(task => (task===task+'') ? {path: task} : task)
+  tasks = tasks.map(task => ({
+    prefix: '',
+    suffix: '',
+    ...task,
+  }))
+  const aliasMap = tasks.map(task => (
+    dirlist(task.path).reduce(
+      (a, alias) => ({
+        ...a,
+        [task.prefix + alias + task.suffix]:
+          path.join(task.path, alias)
+      }),
+      {}
+    )
+  )).reduce((a, map) => ({...a, ...map}), {})
+  return aliasMap
+}
+
 function configFilePath(configPath = '') {
   if(
     configPath.length > 0 && fs.existsSync(path.resolve(paths.appPath, configPath))
@@ -140,22 +164,28 @@ function configPathsRaw(confPath) {
 function configPaths(configPath = '') {
   const confPath = configFilePath(configPath)
   const paths = configPathsRaw(confPath)
-  return Object.keys(paths).reduce( (a, path) => {
+  const aliasMap = Object.keys(paths).reduce( (a, path) => {
     const value = paths[path]
     const target = Array.isArray(value) ? value[0] : value
     a[path.replace(/\/\*$/,'')] = target.replace(/\/\*$/,'')
     return a
   }, {})
+  return aliasMap
 }
 
 function defaultOptions(options) {
   const configPath = configFilePath(
     options.tsconfig || options.jsconfig
   )
   const aliasMap = options.alias || configPaths(configPath)
+  const aliasAutoMap = autoscan(options.autoscan)
+
   const opts = {
     ...options,
-    aliasMap,
+    aliasMap: {
+      ...aliasAutoMap,
+      ...aliasMap,
+    },
   }
   return opts
 }
@@ -182,6 +212,7 @@ const CracoAliasPlugin = {
 module.exports = {
   aliasWebpack,
   aliasJest,
+  autoscan,
   configFilePath,
   configPathsRaw,
   configPaths,