name: codegen

on: workflow_dispatch

jobs:
  codegen:
    runs-on: ubuntu-20.04

    steps:
      - uses: actions/checkout@v2

      - uses: actions/checkout@v2
        with:
          repository: libbpf/libbpf
          path: libbpf

      - name: libbpf-version
        working-directory: libbpf
        run: echo "LIBBPF_SHA=$(git rev-parse HEAD)" >> $GITHUB_ENV

      - uses: actions-rs/toolchain@v1
        with:
          profile: minimal
          toolchain: nightly
          components: rustfmt, clippy
          override: true

      - uses: Swatinem/rust-cache@v1

      - name: Install headers
        run: |
          sudo apt -y update
          sudo apt -y install libc6-dev libc6-dev-{arm64,armel,riscv64}-cross

      - name: Run codegen
        run: |
          cargo xtask codegen --libbpf-dir ./libbpf

      - name: Check for changes
        run: |
          git diff --quiet || echo "COMMIT_CHANGES=1" >> $GITHUB_ENV

      - name: Commit Changes
        id: commit
        if: env.COMMIT_CHANGES == 1
        uses: devops-infra/action-commit-push@master
        with:
          github_token: "${{ secrets.CRABBY_GITHUB_TOKEN }}"
          commit_prefix: "[codegen] Update libbpf to ${{ env.LIBBPF_SHA }}"
          commit_message: "Update libbpf to ${{ env.LIBBPF_SHA }}"
          target_branch: codegen
          force: true

      - name: Create pull request
        if: steps.commit.outputs.files_changed != ''
        uses: devops-infra/action-pull-request@master
        with:
          github_token: ${{ secrets.CRABBY_GITHUB_TOKEN }}
          body: "**Automated pull request**<br><br>Update libbpf to ${{ env.LIBBPF_SHA }}"
          title: Update libbpf to ${{ env.LIBBPF_SHA }}
          source_branch: codegen
          target_branch: main
          get_diff: true