chore: add GoReleaser

.github/goreleaser.yml

@@ -0,0 +1,96 @@
+# yaml-language-server: $schema=https://goreleaser.com/static/schema.json
+version: 2
+
+before:
+  hooks:
+    - go mod tidy
+
+builds:
+  - id: protoc-gen-connect-go-servicestruct
+    main: ./cmd/protoc-gen-connect-go-servicestruct
+    binary: protoc-gen-connect-go-servicestruct
+    skip: '{{ ne .Env.BUILD_COMPONENT "protoc-gen-connect-go-servicestruct" }}'
+    env:
+      - CGO_ENABLED=0
+    goos:
+      - linux
+      - darwin
+      - windows
+    goarch:
+      - amd64
+      - arm64
+    ldflags:
+      - -s -w
+      - -X main.version={{.Version}}
+      - -X main.commit={{.Commit}}
+      - -X main.date={{.Date}}
+
+  - id: protoc-gen-elixir-grpc
+    main: ./cmd/protoc-gen-elixir-grpc
+    binary: protoc-gen-elixir-grpc
+    skip: '{{ ne .Env.BUILD_COMPONENT "protoc-gen-elixir-grpc" }}'
+    env:
+      - CGO_ENABLED=0
+    goos:
+      - linux
+      - darwin
+      - windows
+    goarch:
+      - amd64
+      - arm64
+    ldflags:
+      - -s -w
+      - -X main.version={{.Version}}
+      - -X main.commit={{.Commit}}
+      - -X main.date={{.Date}}
+
+archives:
+  - id: default
+    name_template: >-
+      {{ .Env.BUILD_COMPONENT }}_
+      {{- .Version }}_
+      {{- title .Os }}_
+      {{- if eq .Arch "amd64" }}x86_64
+      {{- else if eq .Arch "386" }}i386
+      {{- else }}{{ .Arch }}{{ end }}
+      {{- if .Arm }}v{{ .Arm }}{{ end }}
+    files:
+      - LICENSE
+      - README.md
+      - cmd/*/README.md
+      - cmd/*/CHANGELOG.md
+
+checksum:
+  name_template: "checksums.txt"
+
+snapshot:
+  version_template: "{{ .Branch }}-{{ .ShortCommit }}-snapshot"
+
+changelog:
+  sort: asc
+  use: github
+  filters:
+    exclude:
+      - "^docs:"
+      - "^test:"
+      - "^chore:"
+      - "Merge pull request"
+      - "Merge remote-tracking branch"
+  groups:
+    - title: Features
+      regexp: '^.*?feat(\([[:word:]]+\))??!?:.+$'
+      order: 0
+    - title: "Bug Fixes"
+      regexp: '^.*?fix(\([[:word:]]+\))??!?:.+$'
+      order: 1
+    - title: Others
+      order: 999
+
+release:
+  github:
+    owner: TrogonStack
+    name: protoc-gen
+  draft: false
+  prerelease: auto
+  mode: append
+  name_template: "{{.Tag}}"

.github/workflows/cd.yml

@@ -0,0 +1,156 @@
+---
+name: cd
+
+on:
+  release:
+    types: [published]
+  workflow_dispatch:
+    inputs:
+      dry_run:
+        description: 'Run in dry-run mode (snapshot, no publish)'
+        required: false
+        default: 'true'
+        type: choice
+        options:
+          - 'true'
+          - 'false'
+      tag:
+        description: 'Tag to use for version extraction (optional, e.g., protoc-gen-elixir-grpc@v0.2.0)'
+        required: false
+        type: string
+
+permissions:
+  contents: write
+  packages: write
+  id-token: write
+  attestations: write
+
+jobs:
+  # Run tests only for manual workflow_dispatch triggers to catch issues during testing.
+  # For actual releases, CI has already validated the code.
+  # TODO: Consider removing workflow_dispatch entirely once the release process is stable.
+  test:
+    name: Run Tests
+    if: github.event_name == 'workflow_dispatch'
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v5.0.0
+
+      - name: Set up Go
+        uses: actions/setup-go@v6.0.0
+        with:
+          go-version: "1.24"
+
+      - name: Run Tests
+        run: go test -race -v ./...
+
+      - name: Run Vet
+        run: go vet ./...
+
+  goreleaser:
+    name: Release with GoReleaser
+    needs: test
+    if: |
+      always() &&
+      (needs.test.result == 'success' || needs.test.result == 'skipped')
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v5.0.0
+        with:
+          fetch-depth: 0
+
+      - name: Set up Go
+        uses: actions/setup-go@v6.0.0
+        with:
+          go-version: "1.24"
+
+      - name: Extract Version from Tag
+        id: version
+        run: |
+          # Extract version from monorepo tags like protoc-gen-elixir-grpc@v0.1.0
+          if [ "${{ github.event_name }}" = "release" ]; then
+            TAG="${{ github.event.release.tag_name }}"
+          elif [ -n "${{ github.event.inputs.tag }}" ]; then
+            # Use tag from workflow_dispatch input if provided
+            TAG="${{ github.event.inputs.tag }}"
+          elif [[ "${{ github.ref }}" == refs/tags/* ]]; then
+            # Use the ref if it's a tag
+            TAG="${{ github.ref_name }}"
+          else
+            echo "ERROR: No tag provided. Please provide a tag via workflow_dispatch input."
+            echo "Example: gh workflow run cd.yml -f dry_run=true -f tag=protoc-gen-elixir-grpc@v0.1.0"
+            exit 1
+          fi
+
+          # Validate tag format (must contain @ separator)
+          if [[ ! "$TAG" =~ @ ]]; then
+            echo "ERROR: Tag must follow pattern 'component@version', got: ${TAG}"
+            echo "Examples: protoc-gen-elixir-grpc@v0.1.0, protoc-gen-connect-go-servicestruct@v0.2.0"
+            exit 1
+          fi
+
+          VERSION="${TAG##*@}"
+          COMPONENT="${TAG%%@*}"
+
+          # Validate version is not empty
+          if [ -z "$VERSION" ]; then
+            echo "ERROR: Failed to extract version from tag: ${TAG}"
+            exit 1
+          fi
+
+          # Validate component is known
+          case "$COMPONENT" in
+            protoc-gen-elixir-grpc|protoc-gen-connect-go-servicestruct)
+              echo "Valid component: ${COMPONENT}"
+              ;;
+            *)
+              echo "ERROR: Unknown component: ${COMPONENT}"
+              echo "Valid components: protoc-gen-elixir-grpc, protoc-gen-connect-go-servicestruct"
+              exit 1
+              ;;
+          esac
+
+          echo "version=${VERSION}" >> $GITHUB_OUTPUT
+          echo "component=${COMPONENT}" >> $GITHUB_OUTPUT
+          echo "Extracted component: ${COMPONENT}"
+          echo "Extracted version: ${VERSION}"
+
+      - name: Run GoReleaser (Snapshot)
+        if: github.event_name == 'workflow_dispatch' && github.event.inputs.dry_run == 'true'
+        uses: goreleaser/goreleaser-action@v6.4.0
+        with:
+          distribution: goreleaser
+          version: "~> v2"
+          args: release --snapshot --clean --skip=publish --config .github/goreleaser.yml
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          GORELEASER_CURRENT_TAG: ${{ steps.version.outputs.version }}
+          BUILD_COMPONENT: ${{ steps.version.outputs.component }}
+
+      - name: Run GoReleaser (Release)
+        if: github.event_name == 'release' || (github.event_name == 'workflow_dispatch' && github.event.inputs.dry_run == 'false')
+        uses: goreleaser/goreleaser-action@v6.4.0
+        with:
+          distribution: goreleaser
+          version: "~> v2"
+          args: release --clean --config .github/goreleaser.yml
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          GORELEASER_CURRENT_TAG: ${{ steps.version.outputs.version }}
+          BUILD_COMPONENT: ${{ steps.version.outputs.component }}
+
+      - name: Attest Build Provenance
+        if: github.event_name == 'release' || (github.event_name == 'workflow_dispatch' && github.event.inputs.dry_run == 'false')
+        uses: actions/attest-build-provenance@v3.0.0
+        with:
+          subject-path: "dist/**/*.tar.gz"
+
+      - name: Upload Snapshot Artifacts
+        if: github.event_name == 'workflow_dispatch' && github.event.inputs.dry_run == 'true'
+        uses: actions/upload-artifact@v4.6.2
+        with:
+          name: snapshot-${{ steps.version.outputs.component }}-${{ steps.version.outputs.version }}
+          path: dist/*
+          retention-days: 7

.gitignore

@@ -34,3 +34,6 @@ go.work.sum
 # Generated protoc plugin binaries (root directory only)
 /protoc-gen-*
 /protoc-gen-*.wasm
+
+# GoReleaser artifacts
+dist/

Taskfile.yml

@@ -5,11 +5,6 @@ tasks:
     desc: Run fmt, vet, lint, and test
     deps: [fmt, vet, lint, test]
 
-  help:
-    desc: Show available tasks
-    cmds:
-      - task --list
-
   test:
     desc: Run all tests
     cmds:
@@ -28,16 +23,6 @@ tasks:
       - echo "Running tests with coverage..."
       - go test -cover ./...
 
-  test-coverage-html:
-    desc: Run tests and generate HTML coverage report
-    deps: [clean]
-    cmds:
-      - echo "Running tests and generating HTML coverage report..."
-      - go test -coverprofile=coverage.out -covermode=count ./...
-      - go tool cover -html=coverage.out -o coverage.html
-      - echo "Coverage report generated at coverage.html"
-      - echo "Open coverage.html in your browser to view the report"
-
   fmt:
     desc: Format code with gofmt
     cmds:
@@ -50,17 +35,22 @@ tasks:
       - echo "Running go vet..."
       - go vet ./...
 
+  golangci-lint-check-installed:
+    desc: Check if golangci-lint is installed
+    internal: true
+    preconditions:
+      - sh: command -v golangci-lint
+        msg: |
+          golangci-lint not found. Install with:
+            go install github.com/golangci/golangci-lint/cmd/golangci-lint@latest
+            or visit https://golangci-lint.run/welcome/install/
+
   lint:
-    desc: Run golangci-lint (if available)
+    desc: Run golangci-lint
+    deps: [golangci-lint-check-installed]
     cmds:
       - echo "Running linter..."
-      - |
-        if command -v golangci-lint >/dev/null 2>&1; then
-          golangci-lint run
-        else
-          echo "golangci-lint not found, skipping lint check"
-          echo "Install with: go install github.com/golangci/golangci-lint/cmd/golangci-lint@latest"
-        fi
+      - golangci-lint run
 
   build:
     desc: Build the package
@@ -87,14 +77,10 @@ tasks:
       - echo "Building Elixir gRPC protoc plugin binary..."
       - go build -o protoc-gen-elixir-grpc ./cmd/protoc-gen-elixir-grpc
 
-  dev-test:
-    desc: Development workflow - fmt, vet, and generate coverage HTML
-    deps: [fmt, vet, test-coverage-html]
-    cmds:
-      - echo "Development test complete - check coverage.html"
-
-  ci-test:
-    desc: CI workflow - fmt, vet, and test with coverage
-    deps: [fmt, vet, test-coverage]
+  clean:
+    desc: Clean build artifacts and coverage files
     cmds:
-      - echo "CI test complete"
+      - echo "Cleaning artifacts..."
+      - rm -rf dist/
+      - rm -f coverage.out coverage.html
+      - rm -f protoc-gen-*