Add an experimental workflow for automatic prepublish staging #188 #228

Author: jgonggrijp

.github/workflows/cd.yml

@@ -6,6 +6,9 @@ name: Continuous Deployment
 on:
   push:
     branches: [prepublish]
+  workflow_run:
+    workflows: [Prepublication staging]
+    types: [completed]
 
 jobs:
   deploy:

.github/workflows/prepublish.yml

@@ -0,0 +1,22 @@
+# As an alternative to a manual push to the prepublish branch, this workflow can
+# be triggered on a release branch by assigning a special label to its pull
+# request in order to set the CD circus in motion.
+
+name: Prepublication staging
+
+on:
+  pull_request:
+    types: [labeled]
+    branches: [release/*]
+
+jobs:
+  stage:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - name: Merge into prepublish
+        uses: devmasx/merge-branch@v1.3.0
+        with:
+          label_name: ready to launch
+          target_branch: prepublish
+          github_token: ${{ secrets.GITHUB_TOKEN }}