Automatically publish tagged packages (on tags v*)

Signed-off-by: Guillaume Tardif <guillaume.tardif@docker.com>

.github/workflows/release.yml

@@ -0,0 +1,20 @@
+
+on:
+  push:
+    tags:
+      - 'v*'
+
+jobs:
+  publish-npm:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - name: Set env
+        run: echo ::set-env name=RELEASE_VERSION::$(echo ${GITHUB_REF:11})
+      - uses: actions/setup-node@v1
+        with:
+          node-version: 12
+          registry-url: https://registry.npmjs.org/
+      - run: ./publish ${RELEASE_VERSION}
+        env:
+          NODE_AUTH_TOKEN: ${{secrets.NPM_TOKEN}}

publish.sh

@@ -2,6 +2,7 @@
 
 set -e
 
+yarn install
 yarn build
 yarn run copy
 cd src