Add first draft of auto build action

.github/workflows/release.yml

@@ -0,0 +1,54 @@
+name: Release Builder
+
+on:
+  release:
+    types: [published, created, edited, prereleased]
+
+jobs:
+  # Windows
+  build-win:
+    name: Build (Windows)
+    runs-on: windows-latest
+    steps:
+      # Setup
+      - uses: actions/checkout@v1
+      - name: Use Node.js ${{ matrix.node-version }}
+        uses: actions/setup-node@v1
+        with:
+          node-version: ${{ matrix.node-version }}
+      - run: npm install
+
+      # Build
+      - run: npm run electron:build -- -w # -p always
+
+  # macOS
+  build-mac:
+    name: Build (macOS)
+    runs-on: macos-latest
+    steps:
+      # Setup
+      - uses: actions/checkout@v1
+      - name: Use Node.js ${{ matrix.node-version }}
+        uses: actions/setup-node@v1
+        with:
+          node-version: ${{ matrix.node-version }}
+      - run: npm install
+
+      # Build
+      - run: npm run electron:build -- -m # -p always
+
+  # Linux
+  build-linux:
+    name: Build (Linux)
+    runs-on: ubuntu-latest
+    steps:
+      # Setup
+      - uses: actions/checkout@v1
+      - name: Use Node.js ${{ matrix.node-version }}
+        uses: actions/setup-node@v1
+        with:
+          node-version: ${{ matrix.node-version }}
+      - run: npm install
+
+      # Build
+      - run: npm run electron:build -- -l # -p always