chore: Add automatic publishing workflow

Author: Exeteres

.github/workflows/publish.yml

@@ -0,0 +1,36 @@
+name: Publish
+
+on:
+  release:
+    types: [published]
+
+jobs:
+  packages:
+    runs-on: ubuntu-latest
+    name: Publish packages
+    steps:
+      - uses: actions/checkout@v2
+      - uses: actions/setup-node@v1
+        with:
+          node-version: "14.x"
+
+      - uses: actions/cache@master
+        with:
+          path: |
+            node_modules
+            */*/node_modules
+          key: ${{ runner.os }}-${{ hashFiles('**/yarn.lock') }}-${{ hashFiles('**/package.json') }}
+
+      - name: Install dependencies
+        if: steps.cache.outputs.cache-hit != 'true'
+        run: yarn
+
+      - name: Build packages
+        run: yarn build
+
+      - name: Publish to NPM
+        run: |
+          npm config set '//registry.npmjs.org/:_authToken' "${NPM_TOKEN}"
+          yarn publish-packages
+        env:
+          NPM_TOKEN: ${{ secrets.NPM_TOKEN }}

lerna.json

@@ -0,0 +1,5 @@
+{
+    "version": "0.1.0",
+    "npmClient": "yarn",
+    "useWorkspaces": true
+}

package.json

@@ -5,12 +5,15 @@
     "license": "MIT",
     "private": true,
     "scripts": {
-        "build-examples": "tstl"
+        "build-examples": "tstl",
+        "release": "lerna version --conventional-commits --create-release github",
+        "publish-packages": "lerna publish from-git -y"
     },
     "workspaces": [
         "packages/*"
     ],
     "devDependencies": {
+        "lerna": "^4.0.0",
         "lua-types": "^2.10.1",
         "typescript-to-lua": "^0.40.1"
     }