Add PR validation with GitHub action (#144)

Author: sleshchenko

.github/workflows/pr.yml

@@ -0,0 +1,68 @@
+name: Validate PRs
+
+on:
+  pull_request:
+    branches: [ master ]
+
+jobs:
+  go:
+    name: Check go sources
+    runs-on: ubuntu-latest
+    steps:
+    -
+      name: Set up Go 1.x
+      uses: actions/setup-go@v2
+      with:
+        go-version: ^1.12
+    -
+      name: Check out code into the Go module directory
+      uses: actions/checkout@v2
+    -
+      name: Cache go modules
+      id: cache-mod
+      uses: actions/cache@v2
+      with:
+        path: ~/go/pkg/mod
+        key: ${{ runner.os }}-go-${{ hashFiles('**/go.sum') }}
+        restore-keys: |
+          ${{ runner.os }}-go-
+    -
+      name: Download dependencies
+      run: go mod download
+      if: steps.cache-mod.outputs.cache-hit != 'true'
+    -
+      name: Check go mod status
+      run: |
+        go mod tidy
+        if [[ ! -z $(git status -s) ]]
+        then
+          echo "Go mod state is not clean"
+          exit 1
+        fi
+    -
+      name: Check format
+      run: |
+        go get -u github.com/google/addlicense
+        git reset HEAD --hard
+
+        make fmt
+        make fmt_license
+        if [[ ! -z $(git status -s) ]]
+        then
+          echo "not well formatted sources are found"
+          exit 1
+        fi
+    -
+      name: Run Go Tests
+      run: make test
+
+  docker:
+    name: Check docker build
+    runs-on: ubuntu-latest
+    steps:
+    -
+      name: Check out code into the Go module directory
+      uses: actions/checkout@v2
+    -
+      name: Check if dockerimage build is working
+      run: docker build -f ./build/Dockerfile .

Makefile

@@ -259,6 +259,11 @@ start_local:
 start_local_debug:
 	operator-sdk run --local --watch-namespace $(NAMESPACE) --enable-delve 2>&1 | grep --color=always -E '"msg":"[^"]*"|$$'
 
+.PHONY: test
+### test: run unit tests
+test:
+	go test $(shell go list ./... | grep -v test/e2e)
+
 ### test_e2e: runs e2e test on the cluster set in context. Includes deploying devworkspace-controller, run test workspace, uninstall devworkspace-controller
 test_e2e: _print_vars _set_ctx _update_yamls update_devworkspace_crds _do_e2e_test _reset_yamls _reset_ctx