chore: set up auto deployments

for #11

.github/workflows/publish.yml

@@ -0,0 +1,22 @@
+name: Publish
+
+on: workflow_dispatch
+
+jobs:
+  publish:
+    runs-on: ubuntu-latest
+
+    name: Make a release and publish to NPM
+
+    steps:
+      - uses: actions/checkout@v2
+        with:
+          fetch-depth: 0
+          persist-credentials: false
+      - uses: actions/setup-node@v1
+      - name: Install Node dependencies
+        run: yarn --frozen-lockfile
+      - run: yarn semantic-release
+        env:
+          GITHUB_TOKEN: ${{ secrets.GH_PAT }}
+          NPM_TOKEN: ${{ secrets.NPM_TOKEN }}

package.json

@@ -19,7 +19,8 @@
     "lint:fix": "yarn lint --fix",
     "storybook": "cd packages/storybook && yarn storybook",
     "sample": "yarn build && cd packages/sample-project && yarn --frozen-lockfile && yarn dev",
-    "clean": "rm -rf ./packages/svelte-vega/dist && rm -rf ./packages/storybook/_gh-pages && rm -rf && rm -rf ./packages/sample-project/public/build"
+    "clean": "rm -rf ./packages/svelte-vega/dist && rm -rf ./packages/storybook/_gh-pages && rm -rf && rm -rf ./packages/sample-project/public/build",
+    "release": "cd packages/svelte-vega && yarn semantic-release"
   },
   "devDependencies": {
     "@babel/eslint-parser": "^7.13.14",
@@ -33,6 +34,8 @@
     "eslint-plugin-node": "^11.1.0",
     "eslint-plugin-promise": "^5.1.0",
     "eslint-plugin-svelte3": "^3.1.2",
+    "lerna": "^4.0.0",
+    "semantic-release": "^17.4.2",
     "typescript": "^4.2.4",
     "vega": "^5.20.2",
     "vega-lite": "^5.1.0"

packages/svelte-vega/package.json

@@ -18,7 +18,8 @@
     "build": "rollup -c",
     "dev": "rollup -c -w",
     "validate": "svelte-check",
-    "prepublishOnly": "npm run build"
+    "prepublishOnly": "npm run build",
+    "semantic-release": "semantic-release"
   },
   "files": [
     "src",