ci: Add GoReleaser configuration and GitHub Actions workflow for artifact uploads

Signed-off-by: Eden Reich <eden.reich@gmail.com>

Author: edenreich

.github/workflows/artifacts.yml

@@ -0,0 +1,70 @@
+---
+name: Artifacts
+
+on:
+  release:
+    types:
+      - published
+  workflow_dispatch:
+
+permissions:
+  contents: write
+  packages: write
+  security-events: write
+  id-token: write
+
+jobs:
+  upload_artifacts:
+    name: Upload Artifacts
+    runs-on: ubuntu-24.04
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4.2.2
+        with:
+          ref: ${{ github.ref }}
+          fetch-depth: 0
+
+      - name: Set up Go
+        uses: actions/setup-go@v5.5.0
+        with:
+          go-version: '1.24'
+          cache: true
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3.10.0
+        with:
+          version: latest
+
+      - name: Install GoReleaser
+        run: |
+          curl -sSL https://github.com/goreleaser/goreleaser/releases/download/v2.7.0/goreleaser_Linux_x86_64.tar.gz | tar -xzv -C /usr/local/bin goreleaser
+
+      - name: Login to GitHub Container Registry
+        uses: docker/login-action@v3.4.0
+        with:
+          registry: ghcr.io
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Run GoReleaser
+        run: |
+          goreleaser release --clean
+
+      - name: Upload Artifacts to Release
+        env:
+          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          VERSION: ${{ github.event.release.tag_name }}
+        run: |
+          for file in dist/a2a_*; do
+            if [ -d "$file" ]; then
+              echo "Skipping directory: $file"
+              continue
+            fi
+            
+            echo "Uploading $file to release ${{ env.VERSION }}"
+            gh release upload ${{ env.VERSION }} "$file" --clobber
+          done
+
+          if [ -f "dist/checksums.txt" ]; then
+            gh release upload ${{ env.VERSION }} "dist/checksums.txt" --clobber
+          fi

.goreleaser.yaml

@@ -0,0 +1,53 @@
+# yaml-language-server: $schema=https://goreleaser.com/static/schema.json
+---
+version: 2
+
+project_name: a2a-cli
+
+before:
+  hooks:
+    - go mod tidy
+
+builds:
+  - id: a2a-cli
+    main: .
+    env:
+      - CGO_ENABLED=0
+    goos:
+      - linux
+      - darwin
+    goarch:
+      - amd64
+      - arm64
+    goarm:
+      - '7'
+    goamd64:
+      - 'v1'
+    mod_timestamp: '{{ .CommitTimestamp }}'
+    flags:
+      - -trimpath
+    ldflags:
+      - -s -w -X main.version={{ .Version }} -X main.commit={{ .Commit }} -X main.date={{ .CommitDate }} -X main.builtBy=goreleaser -X main.treeState={{ .IsGitDirty }}
+
+archives:
+  - formats:
+      - tar.gz
+    name_template: >-
+      {{ .ProjectName }}_
+      {{- title .Os }}_
+      {{- if eq .Arch "amd64" }}x86_64
+      {{- else }}{{ .Arch }}{{ end }}
+      {{- if .Arm }}v{{ .Arm }}{{ end }}
+    files:
+      - README.md
+      - LICENSE
+      - CHANGELOG.md
+
+checksum:
+  name_template: 'checksums.txt'
+
+changelog:
+  disable: true
+
+release:
+  disable: true