v2: introduce CI (#2768)

* v2: introduce CI for v2 branch

* v2-ci: split test report generation from test pass to preserve exit code

* v2-ci: spilt lint results from unit test results

* v2-ci: fix testRunTitle name

* v2-ci: break up the steps for more accurate status indicators

* v2-ci: break steps into different jobs

* v2-ci: revert back to single-job pattern

* v2-ci: reflect the true result by coercing SucceededWithIssues into Failed in the last step

* v2-ci: don't fail the build on lint errors

1 files changed, 142 insertions, 0 deletions

diff --git a/azure-pipelines.yml b/azure-pipelines.yml
new file mode 100644
index 0000000..fbee6fb
--- /dev/null
+++ b/azure-pipelines.yml
@@ -0,0 +1,142 @@
+# Mutilated beyond recognition from the example at:
+# https://docs.microsoft.com/azure/devops/pipelines/languages/go
+
+trigger:
+- v2
+
+strategy:
+  matrix:
+    linux:
+      imageName: ubuntu-16.04
+      gorootDir: /usr/local
+    mac:
+      imageName: macos-10.13
+      gorootDir: /usr/local
+    windows:
+      imageName: windows-2019
+      gorootDir: C:\
+pool:
+  vmImage: $(imageName)
+
+variables:
+  GOROOT: $(gorootDir)/go
+  GOPATH: $(system.defaultWorkingDirectory)/gopath
+  GOBIN:  $(GOPATH)/bin
+  modulePath: '$(GOPATH)/src/github.com/$(build.repository.name)'
+  # TODO: Remove once it's enabled by default
+  GO111MODULE: on
+
+steps:
+- bash: |
+    latestGo=$(curl "https://golang.org/VERSION?m=text")
+    echo "##vso[task.setvariable variable=LATEST_GO]$latestGo"
+    echo "Latest Go version: $latestGo"
+  displayName: "Get latest Go version"
+
+- bash: |
+    sudo rm -f $(which go)
+    echo '##vso[task.prependpath]$(GOBIN)'
+    echo '##vso[task.prependpath]$(GOROOT)/bin'
+    mkdir -p '$(modulePath)'
+    shopt -s extglob
+    shopt -s dotglob
+    mv !(gopath) '$(modulePath)'
+  displayName: Remove old Go, set GOBIN/GOROOT, and move project into GOPATH
+
+# Install Go (this varies by platform)
+- bash: |
+    wget "https://dl.google.com/go/$(LATEST_GO).linux-amd64.tar.gz"
+    sudo tar -C $(gorootDir) -xzf "$(LATEST_GO).linux-amd64.tar.gz"
+  condition: eq( variables['Agent.OS'], 'Linux' )
+  displayName: Install Go on Linux
+
+- bash: |
+    wget "https://dl.google.com/go/$(LATEST_GO).darwin-amd64.tar.gz"
+    sudo tar -C $(gorootDir) -xzf "$(LATEST_GO).darwin-amd64.tar.gz"
+  condition: eq( variables['Agent.OS'], 'Darwin' )
+  displayName: Install Go on macOS
+
+- powershell: |
+    Write-Host "Downloading Go... (please be patient, I am very slow)"
+    (New-Object System.Net.WebClient).DownloadFile("https://dl.google.com/go/$(LATEST_GO).windows-amd64.zip", "$(LATEST_GO).windows-amd64.zip")
+    Write-Host "Extracting Go... (I'm slow too)"
+    Expand-Archive "$(LATEST_GO).windows-amd64.zip" -DestinationPath "$(gorootDir)"
+  condition: eq( variables['Agent.OS'], 'Windows_NT' )
+  displayName: Install Go on Windows
+
+- bash: curl -sfL https://raw.githubusercontent.com/golangci/golangci-lint/master/install.sh | sh -s -- -b $(go env GOPATH)/bin v1.19.1
+  displayName: Install golangci-lint
+
+- script: |
+    go get github.com/axw/gocov/gocov
+    go get github.com/AlekSi/gocov-xml
+    go get -u github.com/jstemmer/go-junit-report
+  displayName: Install test and coverage analysis tools
+
+- bash: |
+    printf "Using go at: $(which go)\n"
+    printf "Go version: $(go version)\n"
+    printf "\n\nGo environment:\n\n"
+    go env
+    printf "\n\nSystem environment:\n\n"
+    env
+  displayName: Print Go version and environment
+
+- script: |
+    go get -v -t -d ./...
+    mkdir test-results
+  workingDirectory: '$(modulePath)'
+  displayName: Get dependencies
+
+- script: |
+    (golangci-lint run --out-format junit-xml -E gofmt -E goimports -E misspell) > test-results/lint-result.xml
+    exit 0
+  workingDirectory: '$(modulePath)'
+  continueOnError: true
+  displayName: Run lint check
+
+- script: |
+    (go test -v -coverprofile=cover-profile.out -race ./... 2>&1) > test-results/test-result.out
+  workingDirectory: '$(modulePath)'
+  continueOnError: true
+  displayName: Run tests
+
+- script: |
+    mkdir coverage
+    gocov convert cover-profile.out > coverage/coverage.json
+    # Because Windows doesn't work with input redirection like *nix, but output redirection works.
+    (cat ./coverage/coverage.json | gocov-xml) > coverage/coverage.xml 
+  workingDirectory: '$(modulePath)'
+  displayName: Prepare coverage reports
+
+- script: |
+    (cat ./test-results/test-result.out | go-junit-report) > test-results/test-result.xml
+  workingDirectory: '$(modulePath)'
+  displayName: Prepare test report
+
+- task: PublishCodeCoverageResults@1
+  displayName: Publish test coverage report
+  inputs:
+    codeCoverageTool: Cobertura 
+    summaryFileLocation: $(modulePath)/coverage/coverage.xml
+
+- task: PublishTestResults@2
+  displayName: Publish unit test
+  inputs:
+    testResultsFormat: 'JUnit'
+    testResultsFiles: $(modulePath)/test-results/test-result.xml
+    testRunTitle: $(agent.OS) Unit Test
+    mergeTestResults: false
+
+- task: PublishTestResults@2
+  displayName: Publish lint results
+  inputs:
+    testResultsFormat: 'JUnit'
+    testResultsFiles: $(modulePath)/test-results/lint-result.xml
+    testRunTitle: $(agent.OS) Lint
+    mergeTestResults: false
+
+- bash: |
+    exit 1
+  condition: eq(variables['Agent.JobStatus'], 'SucceededWithIssues')
+  displayName: Coerce correct build result
\ No newline at end of file