Improve build workflows

* Use go 1.17.x
* Separate build steps into different files
* Add new build steps to publish a release upon a new tag

.github/workflows/code-coverage-upload.yml

@@ -0,0 +1,31 @@
+name: Upload code coverage
+
+on:
+  workflow_run:
+    workflows: [Build]
+    types: [completed]
+    branches: [master]
+
+jobs:
+  upload-code-coverage:
+    runs-on: ubuntu-latest
+    if: ${{ github.event.workflow_run.conclusion == 'success' }}
+
+    steps:
+      - uses: actions/checkout@v2
+
+      - name: Install Go
+        uses: actions/setup-go@v2
+        with:
+          go-version: 1.17.x
+
+      - name: Run tests and write coverprofile
+        shell: bash
+        run: |
+          go test -race -coverprofile=profile.out -covermode=atomic ./...
+
+      - name: Upload testcoverage to codecov.io
+        uses: codecov/codecov-action@v1
+        with:
+          file: ./profile.out
+          fail_ci_if_error: true

.github/workflows/release.yml

@@ -0,0 +1,43 @@
+name: Publish release
+
+on:
+  workflow_run:
+    workflows: [Build]
+    types: [completed]
+
+jobs:
+  publish-release:
+    runs-on: ubuntu-latest
+    # Kinda bad since it might release on any branch starting with v, but it'll do for now.
+    # Tag filtering in "on:" doesn't work, since the inital build trigger gets lost.
+    # github.ref is therefore also being reset to "refs/head/master".
+    if: ${{ github.event.workflow_run.conclusion == 'success' && startsWith(github.event.workflow_run.head_branch, 'v') }}
+
+    steps:
+      - name: Download linux artifact
+        uses: dawidd6/action-download-artifact@v2
+        with:
+          workflow: test-and-build.yml
+          name: scribblers-linux-x64
+
+      - name: Download macos artifact
+        uses: dawidd6/action-download-artifact@v2
+        with:
+          workflow: test-and-build.yml
+          name: scribblers-macos-x64
+
+      - name: Download windows artifact
+        uses: dawidd6/action-download-artifact@v2
+        with:
+          workflow: test-and-build.yml
+          name: scribblers-x64.exe
+
+      - name: Create release
+        uses: softprops/action-gh-release@v1
+        with:
+          name: ${{ github.event.workflow_run.head_branch }}
+          tag_name: ${{ github.event.workflow_run.head_branch }}
+          files: |
+            scribblers-linux-x64
+            scribblers-macos-x64
+            scribblers-x64.exe

.github/workflows/test-and-build.yml

@@ -1,105 +1,41 @@
-name: Run tests, build artifacts and upload code coverage
+name: Build
 
 on: push
 
 jobs:
-
-  run-tests:
+  test-and-build:
     strategy:
       matrix:
-        go-version: [1.16.x]
-        platform: [ubuntu-latest, macos-latest, windows-latest]
+        include:
+          - platform: windows-latest
+            binary_name: scribblers-x64.exe
+          - platform: ubuntu-latest
+            binary_name: scribblers-linux-x64
+          - platform: macos-latest
+            binary_name: scribblers-macos-x64
 
     runs-on: ${{ matrix.platform }}
 
     steps:
-    - uses: actions/checkout@v2
-
-    - name: Install Go
-      uses: actions/setup-go@v2
-      with:
-        go-version: ${{ matrix.go-version }}
-
-    - name: Run tests and write coverprofile
-      shell: bash
-      run: |
-        go test -race -coverprofile=profile.out -covermode=atomic ./...
-
-    - name: Upload testcoverage to codecov.io
-      if: github.ref == 'refs/heads/master' && matrix.platform == 'ubuntu-latest' && matrix.go-version == '1.16.x'
-      uses: codecov/codecov-action@v1
-      with:
-        file: ./profile.out
-        fail_ci_if_error: true
-
-  # We run builds for the three major platforms on the latest go
-  # version, while the tests may run on older versions.
-
-  # Each artifact upload has a name specified, so we can avoid uploading
-  # all artifcats in one zip.
-
-  build-linux:
-    runs-on: ubuntu-latest
-
-    steps:
-    - uses: actions/checkout@v2
-
-    - name: Install Go
-      uses: actions/setup-go@v2
-      with:
-        go-version: 1.16.x
-
-    - name: Build linux artifact
-      shell: bash
-      run: |
-        go build -o scribblers-linux-x64 .
-
-    - name: Upload linux build artifact
-      uses: actions/upload-artifact@v2
-      with:
-        name: scribblers-linux-x64
-        path: ./scribblers-linux-x64
-
-  build-macos:
-    runs-on: macos-latest
-
-    steps:
-    - uses: actions/checkout@v2
-
-    - name: Install Go
-      uses: actions/setup-go@v2
-      with:
-        go-version: 1.16.x
-
-    - name: Build macos artifact
-      shell: bash
-      run: |
-        go build -o scribblers-macos-x64 .
-
-    - name: Upload macos build artifact
-      uses: actions/upload-artifact@v2
-      with:
-        name: scribblers-macos-x64
-        path: ./scribblers-macos-x64
-
-  build-windows:
-    runs-on: windows-latest
-
-    steps:
-    - uses: actions/checkout@v2
-
-    - name: Install Go
-      uses: actions/setup-go@v2
-      with:
-        go-version: 1.16.x
-
-    - name: Build windows artifact
-      shell: cmd
-      run: |
-        go build -o scribblers-x64.exe .
-
-    - name: Upload windows build artifact
-      uses: actions/upload-artifact@v2
-      with:
-        name: scribblers-x64.exe
-        path: ./scribblers-x64.exe
+      - uses: actions/checkout@v2
+
+      - name: Install Go
+        uses: actions/setup-go@v2
+        with:
+          go-version: 1.17.x
+
+      - name: Run tests
+        shell: bash
+        run: |
+          go test -race -covermode=atomic ./...
+
+      - name: Build artifact
+        shell: bash
+        run: |
+          go build -o ${{ matrix.binary_name }} .
+
+      - name: Upload build artifact
+        uses: actions/upload-artifact@v2
+        with:
+          name: ${{ matrix.binary_name }}
+          path: ./${{ matrix.binary_name }}

.github/workflows/test-pr.yml

@@ -7,7 +7,7 @@ jobs:
   run-tests:
     strategy:
       matrix:
-        go-version: [1.16.x]
+        go-version: [1.17.x]
         platform: [ubuntu-latest, macos-latest, windows-latest]
 
     runs-on: ${{ matrix.platform }}