refactor: next

.editorconfig

@@ -9,5 +9,4 @@ insert_final_newline = true
 trim_trailing_whitespace = true
 
 [*.md]
-insert_final_newline = true
 trim_trailing_whitespace = false

README.md

@@ -208,6 +208,38 @@ module.exports = {
 };
 ```
 
+### `esModule`
+
+Type: `Boolean`
+Default: `true`
+
+By default, `file-loader` generates JS modules that use the ES modules syntax.
+There are some cases in which using ES modules is beneficial, like in the case of [module concatenation](https://webpack.js.org/plugins/module-concatenation-plugin/) and [tree shaking](https://webpack.js.org/guides/tree-shaking/).
+
+You can enable a CommonJS module syntax using:
+
+**webpack.config.js**
+
+```js
+module.exports = {
+  module: {
+    rules: [
+      {
+        test: /\.css$/,
+        use: [
+          {
+            loader: 'url-loader',
+            options: {
+              esModule: false,
+            },
+          },
+        ],
+      },
+    ],
+  },
+};
+```
+
 ## Contributing
 
 Please take a moment to read our contributing guidelines if you haven't yet done so.

azure-pipelines.yml

@@ -2,10 +2,13 @@ trigger:
   - master
   - next
 
+variables:
+  npm_config_cache: $(Pipeline.Workspace)/.npm
+
 jobs:
   - job: Lint
     pool:
-      vmImage: ubuntu-16.04
+      vmImage: ubuntu-latest
     steps:
       - task: NodeTool@0
         inputs:
@@ -20,10 +23,12 @@ jobs:
           node -v
           npm -v
         displayName: 'Print versions'
-      - task: Npm@1
+      - task: CacheBeta@1
         inputs:
-          command: custom
-          customCommand: ci
+          key: npm | $(Agent.OS) | package-lock.json
+          path: $(npm_config_cache)
+        displayName: 'Cache npm'
+      - script: npm ci
         displayName: 'Install dependencies'
       - script: npm run lint
         displayName: 'Run lint'
@@ -34,23 +39,22 @@ jobs:
 
   - job: Linux
     pool:
-      vmImage: ubuntu-16.04
+      vmImage: ubuntu-latest
     strategy:
       maxParallel: 4
       matrix:
+        node-13:
+          node_version: ^13.0.0
+          webpack_version: latest
         node-12:
           node_version: ^12.0.0
           webpack_version: latest
         node-10:
           node_version: ^10.13.0
           webpack_version: latest
-        node-8:
-          node_version: ^8.9.0
-          webpack_version: latest
-        node-8-canary:
-          node_version: ^8.9.0
+        node-10-canary:
+          node_version: ^10.13.0
           webpack_version: next
-          continue_on_error: true
     steps:
       - task: NodeTool@0
         inputs:
@@ -65,10 +69,12 @@ jobs:
           node -v
           npm -v
         displayName: 'Print versions'
-      - task: Npm@1
+      - task: CacheBeta@1
         inputs:
-          command: custom
-          customCommand: ci
+          key: npm | $(Agent.OS) | package-lock.json
+          path: $(npm_config_cache)
+        displayName: 'Cache npm'
+      - script: npm ci
         displayName: 'Install dependencies'
       - script: npm i webpack@$(webpack_version)
         displayName: 'Install "webpack@$(webpack_version)"'
@@ -86,23 +92,22 @@ jobs:
 
   - job: macOS
     pool:
-      vmImage: macOS-10.14
+      vmImage: macOS-latest
     strategy:
       maxParallel: 4
       matrix:
+        node-13:
+          node_version: ^13.0.0
+          webpack_version: latest
         node-12:
           node_version: ^12.0.0
           webpack_version: latest
         node-10:
           node_version: ^10.13.0
           webpack_version: latest
-        node-8:
-          node_version: ^8.9.0
-          webpack_version: latest
-        node-8-canary:
-          node_version: ^8.9.0
+        node-10-canary:
+          node_version: ^10.13.0
           webpack_version: next
-          continue_on_error: true
     steps:
       - task: NodeTool@0
         inputs:
@@ -117,10 +122,12 @@ jobs:
           node -v
           npm -v
         displayName: 'Print versions'
-      - task: Npm@1
+      - task: CacheBeta@1
         inputs:
-          command: custom
-          customCommand: ci
+          key: npm | $(Agent.OS) | package-lock.json
+          path: $(npm_config_cache)
+        displayName: 'Cache npm'
+      - script: npm ci
         displayName: 'Install dependencies'
       - script: npm i webpack@$(webpack_version)
         displayName: 'Install "webpack@$(webpack_version)"'
@@ -138,23 +145,22 @@ jobs:
 
   - job: Windows
     pool:
-      vmImage: windows-2019
+      vmImage: windows-latest
     strategy:
       maxParallel: 4
       matrix:
+        node-13:
+          node_version: ^13.0.0
+          webpack_version: latest
         node-12:
           node_version: ^12.0.0
           webpack_version: latest
         node-10:
           node_version: ^10.13.0
           webpack_version: latest
-        node-8:
-          node_version: ^8.9.0
-          webpack_version: latest
-        node-8-canary:
-          node_version: ^8.9.0
+        node-10-canary:
+          node_version: ^10.13.0
           webpack_version: next
-          continue_on_error: true
     steps:
       - script: 'git config --global core.autocrlf input'
         displayName: 'Config git core.autocrlf'
@@ -172,10 +178,12 @@ jobs:
           node -v
           npm -v
         displayName: 'Print versions'
-      - task: Npm@1
+      - task: CacheBeta@1
         inputs:
-          command: custom
-          customCommand: ci
+          key: npm | $(Agent.OS) | package-lock.json
+          path: $(npm_config_cache)
+        displayName: 'Cache npm'
+      - script: npm ci
         displayName: 'Install dependencies'
       - script: npm i webpack@$(webpack_version)
         displayName: 'Install "webpack@$(webpack_version)"'

babel.config.js

@@ -10,7 +10,7 @@ module.exports = (api) => {
         '@babel/preset-env',
         {
           targets: {
-            node: '8.9.0',
+            node: '10.13.0',
           },
         },
       ],

lint-staged.config.js

@@ -1,4 +1,4 @@
 module.exports = {
   '*.js': ['prettier --write', 'eslint --fix', 'git add'],
-  '*.{json,md,yml,css}': ['prettier --write', 'git add'],
+  '*.{json,md,yml,css,ts}': ['prettier --write', 'git add'],
 };