release.yml

name: Release

# Builds the fmsg binary for each platform and attaches the archives to the
# GitHub release. Runs when a release is published; run it by hand with a tag
# to (re)build an existing release's binaries.
on:
  release:
    types: [published]
  workflow_dispatch:
    inputs:
      tag:
        description: Release tag to build, e.g. v0.3.0
        required: true

permissions:
  contents: write

jobs:
  binaries:
    runs-on: ubuntu-latest
    env:
      TAG: ${{ github.event.release.tag_name || inputs.tag }}
    steps:
      - uses: actions/checkout@v7
        with:
          ref: ${{ env.TAG }}

      - name: Set up Go
        uses: actions/setup-go@v7
        with:
          go-version: "1.27.x"

      - name: Build
        run: |
          set -euo pipefail
          mkdir -p dist
          for target in linux/amd64 linux/arm64 darwin/amd64 darwin/arm64 windows/amd64 windows/arm64; do
            os=${target%/*}
            arch=${target#*/}
            bin=fmsg
            [ "$os" = windows ] && bin=fmsg.exe
            out="build/${os}_${arch}"
            mkdir -p "$out"
            CGO_ENABLED=0 GOOS=$os GOARCH=$arch go build -trimpath \
              -ldflags "-s -w -X github.com/markmnl/fmsg-cli/cmd.version=$TAG" \
              -o "$out/$bin" .
            cp LICENSE README.md "$out/"
            if [ "$os" = windows ]; then
              (cd "$out" && zip -q "$GITHUB_WORKSPACE/dist/fmsg_${os}_${arch}.zip" "$bin" LICENSE README.md)
            else
              tar -C "$out" -czf "dist/fmsg_${os}_${arch}.tar.gz" "$bin" LICENSE README.md
            fi
          done
          (cd dist && sha256sum * > checksums.txt)

      - name: Upload to the release
        env:
          GH_TOKEN: ${{ github.token }}
        run: gh release upload "$TAG" dist/* --clobber