Use yarn and test with jest

.gitignore

@@ -1,2 +1,3 @@
 node_modules
-lib/
+coverage
+lib

.travis.yml

@@ -3,7 +3,3 @@ node_js:
   - "4"
   - "6"
   - "node"
-script: npm run travis
-
-before_install:
-  - '[ "${TRAVIS_NODE_VERSION}" != "0.10" ] || npm install -g npm'

package.json

@@ -3,14 +3,32 @@
   "version": "1.3.0",
   "description": "PostCSS plugin for CSS Modules to pass arbitrary values between your module files",
   "main": "lib/index.js",
+  "files": [
+    "lib"
+  ],
   "scripts": {
-    "lint": "standard src test",
     "build": "babel --out-dir lib src",
-    "autotest": "chokidar src test -c 'npm test'",
-    "test": "mocha --compilers js:babel-core/register",
-    "posttest": "npm run lint && npm run build",
-    "travis": "npm run test",
-    "prepublish": "npm run build"
+    "test": "jest --coverage",
+    "precommit": "lint-staged",
+    "prepublish": "yarn run test && yarn run build"
+  },
+  "lint-staged": {
+    "*.js": [
+      "prettier --single-quote --no-semi --write",
+      "git add"
+    ]
+  },
+  "babel": {
+    "presets": [
+      [
+        "env",
+        {
+          "targets": {
+            "node": 4
+          }
+        }
+      ]
+    ]
   },
   "repository": {
     "type": "git",
@@ -29,23 +47,16 @@
   "homepage": "https://github.com/css-modules/postcss-modules-values#readme",
   "devDependencies": {
     "babel-cli": "^6.5.2",
-    "babel-core": "^6.5.2",
-    "babel-plugin-add-module-exports": "^0.2.1",
-    "babel-preset-es2015": "^6.3.13",
-    "chokidar": "^1.2.0",
-    "mocha": "^3.0.2",
-    "standard": "^8.4.0"
+    "babel-jest": "^20.0.3",
+    "babel-preset-env": "^1.5.0",
+    "husky": "^0.13.3",
+    "jest": "^20.0.3",
+    "lint-staged": "^3.4.2",
+    "prettier": "^1.3.1",
+    "strip-indent": "^2.0.0"
   },
   "dependencies": {
     "icss-replace-symbols": "^1.1.0",
     "postcss": "^6.0.1"
-  },
-  "babel": {
-    "presets": [
-      "es2015"
-    ],
-    "plugins": [
-      "add-module-exports"
-    ]
   }
 }

src/index.js

@@ -1,21 +1,27 @@
-import postcss from 'postcss'
-import replaceSymbols, {replaceAll} from 'icss-replace-symbols'
+const postcss = require('postcss')
+const { default: replaceSymbols, replaceAll } = require('icss-replace-symbols')
 
 const matchImports = /^(.+?|\([\s\S]+?\))\s+from\s+("[^"]*"|'[^']*'|[\w-]+)$/
 const matchValueDefinition = /(?:\s+|^)([\w-]+):?\s+(.+?)\s*$/g
 const matchImport = /^([\w-]+)(?:\s+as\s+([\w-]+))?/
 let options = {}
 let importIndex = 0
-let createImportedName = options && options.createImportedName || ((importName/*, path*/) => `i__const_${importName.replace(/\W/g, '_')}_${importIndex++}`)
+let createImportedName =
+  (options && options.createImportedName) ||
+  ((importName /*, path*/) =>
+    `i__const_${importName.replace(/\W/g, '_')}_${importIndex++}`)
 
-export default postcss.plugin('postcss-modules-values', () => (css, result) => {
+module.exports = postcss.plugin('postcss-modules-values', () => (
+  css,
+  result
+) => {
   let importAliases = []
   let definitions = {}
 
   const addDefinition = atRule => {
     let matches
-    while (matches = matchValueDefinition.exec(atRule.params)) {
-      let [/*match*/, key, value] = matches
+    while ((matches = matchValueDefinition.exec(atRule.params))) {
+      let [, key, value] = matches
       // Add to the definitions, knowing that values can refer to each other
       definitions[key] = replaceAll(definitions, value)
       atRule.remove()
@@ -25,20 +31,23 @@ export default postcss.plugin('postcss-modules-values', () => (css, result) => {
   const addImport = atRule => {
     let matches = matchImports.exec(atRule.params)
     if (matches) {
-      let [/*match*/, aliases, path] = matches
+      let [, aliases, path] = matches
       // We can use constants for path names
       if (definitions[path]) path = definitions[path]
-      let imports = aliases.replace(/^\(\s*([\s\S]+)\s*\)$/, '$1').split(/\s*,\s*/).map(alias => {
-        let tokens = matchImport.exec(alias)
-        if (tokens) {
-          let [/*match*/, theirName, myName = theirName] = tokens
-          let importedName = createImportedName(myName)
-          definitions[myName] = importedName
-          return { theirName, importedName }
-        } else {
-          throw new Error(`@import statement "${alias}" is invalid!`)
-        }
-      })
+      let imports = aliases
+        .replace(/^\(\s*([\s\S]+)\s*\)$/, '$1')
+        .split(/\s*,\s*/)
+        .map(alias => {
+          let tokens = matchImport.exec(alias)
+          if (tokens) {
+            let [, /*match*/ theirName, myName = theirName] = tokens
+            let importedName = createImportedName(myName)
+            definitions[myName] = importedName
+            return { theirName, importedName }
+          } else {
+            throw new Error(`@import statement "${alias}" is invalid!`)
+          }
+        })
       importAliases.push({ path, imports })
       atRule.remove()
     }
@@ -59,11 +68,13 @@ export default postcss.plugin('postcss-modules-values', () => (css, result) => {
 
   /* We want to export anything defined by now, but don't add it to the CSS yet or
    it well get picked up by the replacement stuff */
-  let exportDeclarations = Object.keys(definitions).map(key => postcss.decl({
-    value: definitions[key],
-    prop: key,
-    raws: { before: "\n  " }
-  }))
+  let exportDeclarations = Object.keys(definitions).map(key =>
+    postcss.decl({
+      value: definitions[key],
+      prop: key,
+      raws: { before: '\n  ' }
+    })
+  )
 
   /* If we have no definitions, don't continue */
   if (!Object.keys(definitions).length) return
@@ -75,7 +86,7 @@ export default postcss.plugin('postcss-modules-values', () => (css, result) => {
   if (exportDeclarations.length > 0) {
     let exportRule = postcss.rule({
       selector: `:export`,
-      raws: { after: "\n" }
+      raws: { after: '\n' }
     })
     exportRule.append(exportDeclarations)
     css.prepend(exportRule)
@@ -85,13 +96,13 @@ export default postcss.plugin('postcss-modules-values', () => (css, result) => {
   importAliases.reverse().forEach(({ path, imports }) => {
     let importRule = postcss.rule({
       selector: `:import(${path})`,
-      raws: { after: "\n" }
+      raws: { after: '\n' }
     })
     imports.forEach(({ theirName, importedName }) => {
       importRule.append({
         value: theirName,
         prop: importedName,
-        raws: { before: "\n  " }
+        raws: { before: '\n  ' }
       })
     })