Refactor (#20)

* Move to typescript

* Add Tests and Lint

* Also build before lint

Author: dkaoster

.eslintignore

@@ -1 +1,2 @@
 node_modules
+dist

.eslintrc.js

@@ -0,0 +1,10 @@
+{
+  "parserOptions": {
+    "ecmaVersion": 2019,
+    "sourceType": "module"
+  },
+  "env": {
+    "es6": true
+  },
+  "extends": ["airbnb-base"]
+}

.eslintrc.json

@@ -0,0 +1,26 @@
+name: Test & Lint
+
+on: pull_request
+
+jobs:
+  test:
+    name: Test
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Check out Git repository
+        uses: actions/checkout@v2
+
+      - name: Set up Node.js
+        uses: actions/setup-node@v1
+        with:
+          node-version: 14
+
+      - name: Install Node.js dependencies
+        run: npm ci
+
+      - name: Run Lint
+        run: npm run lint
+
+      - name: Run Tests
+        run: npm run test

.github/workflows/test-lint.yml

@@ -0,0 +1,3 @@
+{
+  "spec": ["test/**/*.spec.js"]
+}

.mocharc.json

@@ -0,0 +1,7 @@
+.idea
+.github
+
+src
+test
+
+rollup.config.js

.npmignore

@@ -26,6 +26,7 @@ export default {
       forceUpscale: false,
       skipExisting: true,
       maxParallel: 4,
+      outputManifest: 'static/images-manifest.json'
     })
   ]
 }
@@ -52,5 +53,7 @@ Note: All output files are named in the pattern `<original-filename>@<size>w.<fi
 
 `maxParallel` (default: 4 | `int`): the max number of parallel images that can be processed concurrently.
 
+`outputManifest` (default: null | `string`): the file to output a json containing all the images this plugin generated.
+
 ## License
 MIT