cache.yml

# This workflow caches external dependencies, build tools, and the most recent artifacts.
# The cache is only usable by workflows started from pull requests against the develop branch.
name: CacheLatest
on:
  push:
    branches: [develop]
jobs:
  cache:
    if: github.repository == 'bottlerocket-os/bottlerocket-kernel-kit'
    runs-on:
      group: bottlerocket
      labels: bottlerocket_ubuntu-latest_32-core
    concurrency:
      group: cache-${{ github.ref }}
      cancel-in-progress: true
    env:
      cache-key: build-cache
    permissions:
      actions: write
    steps:
      - uses: actions/checkout@v4
      # Install dependencies for twoliter and cargo-make.
      - run: sudo apt -y install build-essential openssl libssl-dev pkg-config liblz4-tool
        shell: bash
      # Install cargo-make.
      - run: cargo install cargo-make
        shell: bash
      # This installs twoliter.
      - run: make prep
      # This fetches any external kit dependencies.
      - run: make fetch
      # This fetches Rust crate and Go module dependencies.
      - run: make twoliter fetch
      # This builds the current packages and kits.
      - run: make ARCH=x86_64
      - run: make ARCH=aarch64
      # Delete packages that aren't needed for other builds.
      - run: |
          find build/rpms -name '*debugsource*' -type f -print -delete
          find build/rpms -name '*debuginfo*' -type f -print -delete
          find build/rpms -name '*kmod*nvidia*' -type f -print -delete
      # Remove the previous cache (if it exists).
      - run: |
          gh extension install actions/gh-actions-cache
          gh actions-cache delete "${{ env.cache-key }}" --confirm
        env:
          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        continue-on-error: true
      # This caches the reusable artifacts for future CI runs.
      - uses: actions/cache/save@v4
        # Save Rust dependencies
        with:
          path: |
            ~/.cargo
            .cargo
            .gomodcache
            build/external-kits
            build/rpms
            build/state
            target
          key: ${{ env.cache-key }}