Add GoReleaser config and GitHub Actions release workflow

Adds a backup release path using GoReleaser v2 alongside the existing
Makefile targets. Builds 6 binary targets (linux/darwin/windows × amd64/arm64)
with SHA256 checksums and draft GitHub releases.

New Makefile targets:
- goreleaser-release: triggers GitHub Actions workflow via gh CLI
- goreleaser-snapshot: local dry run without publishing

Author: norman-abramovitz

.github/workflows/release.yml

@@ -0,0 +1,44 @@
+name: Release
+
+on:
+  workflow_dispatch:
+    inputs:
+      tag:
+        description: 'Git tag to release (e.g., v2.2.0)'
+        required: true
+        type: string
+  push:
+    tags:
+      - "v*"
+
+permissions:
+  contents: write
+
+jobs:
+  release:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+
+      - name: Set up Go
+        uses: actions/setup-go@v5
+        with:
+          go-version: 'stable'
+
+      - name: Determine version
+        run: |
+          if [ "${{ github.event_name }}" = "workflow_dispatch" ]; then
+            echo "GORELEASER_CURRENT_TAG=${{ inputs.tag }}" >> "$GITHUB_ENV"
+          fi
+
+      - name: Run GoReleaser
+        uses: goreleaser/goreleaser-action@v7
+        with:
+          distribution: goreleaser
+          version: "~> v2"
+          args: release --clean
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

.goreleaser.yml

@@ -0,0 +1,59 @@
+version: 2
+project_name: cf-targets-plugin
+
+before:
+  hooks:
+    - go mod tidy
+    - gofmt -l -e .
+    - go vet ./...
+    - go test -race ./...
+
+builds:
+  - main: .
+    binary: cf-targets-plugin
+    env:
+      - CGO_ENABLED=0
+    goos:
+      - linux
+      - darwin
+      - windows
+    goarch:
+      - amd64
+      - arm64
+    ldflags:
+      - -X 'main.SemVerMajor={{ .Major }}'
+      - -X 'main.SemVerMinor={{ .Minor }}'
+      - -X 'main.SemVerPatch={{ .Patch }}'
+      - -X 'main.SemVerPrerelease={{ .Prerelease }}'
+      - -X 'main.SemVerBuild='
+      - -X 'main.BuildDate={{ .Date }}'
+      - -X 'main.BuildVcsUrl={{ .GitURL }}'
+      - -X 'main.BuildVcsId={{ .ShortCommit }}'
+      - -X 'main.BuildVcsIdDate={{ .CommitDate }}'
+      - -X 'main.GoOs={{ .Os }}'
+      - -X 'main.GoArch={{ .Arch }}'
+
+archives:
+  - formats: [binary]
+    name_template: >-
+      {{ .ProjectName }}-{{ .Version }}+{{ .Os }}.{{ .Arch }}
+
+checksum:
+  name_template: "checksums.txt"
+  algorithm: sha256
+
+release:
+  github:
+    owner: cloudfoundry-community
+    name: cf-targets-plugin
+  draft: true
+  prerelease: auto
+  name_template: "v{{ .Version }}"
+
+changelog:
+  sort: asc
+  filters:
+    exclude:
+      - "^docs:"
+      - "^test:"
+      - "^chore:"

Makefile

@@ -179,7 +179,7 @@ verify: tidy check test security ## Run all checks before commit
 
 ##@ Release
 
-.PHONY: ci-release release-all release-clean show-releases create-repo-index
+.PHONY: ci-release release-all release-clean show-releases create-repo-index goreleaser-release goreleaser-snapshot
 
 require-%:
 	@ if [ "${${*}}" = "" ]; then \
@@ -202,6 +202,12 @@ create-repo-index: $(RELEASE_ROOT)/repo-index.yml
 $(RELEASE_ROOT)/repo-index.yml: $(RELEASES) generate-repo-index
 	./generate-repo-index "$(RELEASE_ROOT)" "$(PROJECT)" "$(SEMVER_VERSION)" "$(BUILD_DATE)"
 
+goreleaser-release: require-VERSION ## Trigger GitHub Actions release workflow (requires VERSION=x.y.z)
+	gh workflow run release.yml -f tag=v$(VERSION)
+
+goreleaser-snapshot: ## Local GoReleaser dry run (no publish)
+	goreleaser release --snapshot --clean
+
 distbuild:
 	@mkdir -p $(RELEASE_ROOT)