Refactor CI pipeline

- Split tests to callable workflow to enable multi-release scheduled builds
- Automatic cancel of in-progress pull request builds on a new push

Signed-off-by: Mark S. Lewis <mark_lewis@uk.ibm.com>

.github/workflows/pull_request.yml

@@ -0,0 +1,14 @@
+name: Pull request
+
+on:
+  pull_request:
+    branches:
+      - main
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
+  cancel-in-progress: true
+
+jobs:
+  build:
+    uses: ./.github/workflows/test.yml

.github/workflows/push.yml

@@ -0,0 +1,10 @@
+name: Push
+
+on:
+  push:
+    branches:
+      - main
+
+jobs:
+  build:
+    uses: ./.github/workflows/test.yml

.github/workflows/schedule.yml

@@ -4,32 +4,6 @@ on:
   schedule:
     - cron: "5 0 * * *"
 
-env:
-  FABRIC_VERSION: "2.2"
-  GOPATH: ${{ github.workspace }}/src/test/fixture
-
 jobs:
-  test:
-    runs-on: ubuntu-20.04
-    strategy:
-      fail-fast: false
-      matrix:
-        java-version:
-          - "8"
-          - "11"
-          - "17"
-        ref:
-          - main
-          - release-2.2
-    steps:
-      - uses: actions/checkout@v3
-        with:
-          ref: ${{ matrix.ref }}
-      - name: Set up JDK ${{ matrix.java-version }}
-        uses: actions/setup-java@v3
-        with:
-          java-version: ${{ matrix.java-version }}
-          distribution: temurin
-          cache: maven
-      - name: Integration tests
-        run: ./scripts/run-integration-tests.sh
+  main:
+    uses: ./.github/workflows/test.yml

.github/workflows/build.yml → .github/workflows/test.yml

@@ -1,15 +1,19 @@
 name: Build
 
 on:
-  push:
-    branches:
-      - main
-  pull_request:
-    branches:
-      - main
+  workflow_call:
+    inputs:
+      fabric-version:
+        default: '2.2'
+        required: false
+        type: string
+      checkout-ref:
+        default: ''
+        required: false
+        type: string
 
 env:
-  FABRIC_VERSION: "2.2"
+  FABRIC_VERSION: ${{ inputs.fabric-version }}
   GOPATH: ${{ github.workspace }}/src/test/fixture
 
 jobs:
@@ -24,6 +28,8 @@ jobs:
           - "17"
     steps:
       - uses: actions/checkout@v3
+        with:
+          ref: ${{ inputs.checkout-ref }}
       - name: Set up JDK ${{ matrix.java-version }}
         uses: actions/setup-java@v3
         with:

scripts/pull-fabric-images.sh

@@ -1,7 +1,7 @@
 #!/bin/bash -e
 set -euo pipefail
 
-# FABRIC_VERSION is set in .github/workflows/build.yml
+# FABRIC_VERSION is set overridden by CI pipeline
 VERSION=${FABRIC_VERSION:-2.2}
 STABLE_TAG=amd64-${VERSION}-stable