build-gems.yml

---
# 👋 Look here for another good example: https://github.com/bytecodealliance/wasmtime-rb/tree/main/.github/workflows
name: Build, compile, and publish
on:
  workflow_dispatch:
  push:
    tags:
      - v*

concurrency:
  group: ${{ github.workflow }}-${{ github.ref }}
  cancel-in-progress: true

jobs:
  ci-data:
    runs-on: ubuntu-latest
    outputs:
      result: ${{ steps.fetch.outputs.result }}
    steps:
      # This compiles for all supported Ruby cross-compilation platforms.
      - id: fetch
        uses: oxidize-rb/actions/fetch-ci-data@v1
        with:
          supported-ruby-platforms: |
            exclude: [x64-mingw-ucrt, x64-mingw32]
          stable-ruby-versions: |
            exclude: [head]

  cross_gems:
    name: Cross compile gems
    needs: ci-data
    runs-on: ubuntu-latest
    strategy:
      fail-fast: false
      matrix:
        ruby-platform: ${{ fromJSON(needs.ci-data.outputs.result).supported-ruby-platforms }}
    steps:
      - uses: actions/checkout@v4

      - name: Set variables
        id: vars
        run: |
          if [[ "${{ inputs.rb-sys-branch }}" == "" ]]; then
            echo "rb_sys_branch=main" >> $GITHUB_OUTPUT
          else
            echo "rb_sys_branch=${{ inputs.rb-sys-branch }}" >> $GITHUB_OUTPUT
          fi

      - name: Patch rb-sys version
        id: patch
        if: ${{ inputs.rb-sys-branch }}
        run: |
          mkdir -p .cargo
          echo "[patch.crates-io]" >> .cargo/config.toml
          echo "rb-sys = { git = \"https://github.com/oxidize-rb/rb-sys\", branch = \"${{ inputs.rb-sys-branch }}\" }" >> .cargo/config.toml
          echo "rb-sys-env = { git = \"https://github.com/oxidize-rb/rb-sys\", branch = \"${{ inputs.rb-sys-branch }}\" }" >> .cargo/config.toml
          sed -i "s|gem 'rb_sys', '.*'|gem 'rb_sys', github: 'oxidize-rb/rb-sys', branch: '${{ inputs.rb-sys-branch }}'|g" Gemfile
          cargo update -p rb-sys

      - uses: "ruby/setup-ruby@v1"
        with:
          ruby-version: "3.2"
          bundler-cache: true

      - uses: oxidize-rb/actions/cross-gem@v1
        with:
          platform: ${{ matrix.ruby-platform }}
          tag: ${{ steps.vars.outputs.rb_sys_branch }}
          ruby-versions: "3.3, 3.2, 3.1, 3.0"

      - uses: actions/upload-artifact@v3
        with:
          name: cross-gem-${{ matrix.ruby-platform }}
          path: pkg/*-${{ matrix.ruby-platform }}.gem
          if-no-files-found: error
          retention-days: 1

      - name: "Set rb-sys version"
        id: capture
        run: |
          echo "rb-sys-version=$(bundle exec rb-sys-dock --version)" >> $GITHUB_OUTPUT

      - uses: actions/upload-artifact@v3
        with:
          name: rb-sys-bindings-${{ steps.capture.outputs.rb-sys-version }}
          path: |
            tmp/rb-sys-dock/${{ matrix.ruby-platform }}/**/cfg-capture*
            tmp/rb-sys-dock/${{ matrix.ruby-platform }}/**/bindings*
            tmp/${{ matrix.ruby-platform }}/
          if-no-files-found: error

      - name: "Publish to RubyGems"
        id: publish
        env:
          GEM_HOST_API_KEY: "${{secrets.RUBYGEMS_AUTH_TOKEN}}"
        run: |
          mkdir -p $HOME/.gem
          touch $HOME/.gem/credentials
          chmod 0600 $HOME/.gem/credentials
          printf -- "---\n:rubygems_api_key: ${GEM_HOST_API_KEY}\n" > $HOME/.gem/credentials
          gem push pkg/*-${{ matrix.ruby-platform }}.gem