kache 1.0.0

Compiler cache for Rust, C/C++ and CUDA, with S3, GCS, shared-filesystem and OCI remotes.
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name: Prefetch cold CI qualification
on:
  push:
    branches: [main]
    paths:
      - .github/workflows/prefetch-qualification*.yml
      - scripts/prefetch-qualification*.py
      - scripts/prefetch_remote.py
  workflow_dispatch:
    inputs:
      seed_run_id:
        description: Completed trusted main-push run containing the immutable seed
        required: true
        type: string
permissions:
  contents: read
  actions: read
concurrency:
  group: prefetch-qualification
  cancel-in-progress: false
jobs:
  authorize:
    if: github.repository == 'kunobi-ninja/kache' && github.ref == 'refs/heads/main'
    runs-on: ${{ fromJSON(!github.event.repository.private && '"ubuntu-latest"' || vars.CI_RUNNER_LINUX) }}
    timeout-minutes: 5
    outputs:
      seed_run_id: ${{ steps.check.outputs.seed_run_id }}
      seed_sha: ${{ steps.check.outputs.seed_sha }}
    steps:
      - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
        with:
          persist-credentials: false
      - name: Check qualification admission oracles
        run: python3 scripts/prefetch-qualification-test.py
      - id: check
        env:
          GH_TOKEN: ${{ github.token }}
          SEED_RUN_ID: ${{ inputs.seed_run_id }}
        run: python3 scripts/prefetch-qualification.py authorize --seed-run-id "$SEED_RUN_ID"
  seed:
    name: seed
    needs: authorize
    if: github.event_name == 'push' && github.ref_protected
    runs-on: ${{ fromJSON(vars.BENCH_RUNNER_LINUX || '"kunobi-runners"') }}
    timeout-minutes: 90
    steps:
      - name: Record first step before setup
        run: |
          mkdir -p "$RUNNER_TEMP/prefetch-seed-result"
          date --utc --iso-8601=ns > "$RUNNER_TEMP/prefetch-seed-result/first-step.txt"
      - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
        with:
          persist-credentials: false
      - name: Install build prerequisites
        run: |
          sudo apt-get update
          sudo apt-get install -y --no-install-recommends build-essential pkg-config \
            cmake libssl-dev git curl ca-certificates python3
      - uses: jdx/mise-action@e6a8b3978addb5a52f2b4cd9d91eafa7f0ab959d # v4.2.0
        with:
          version: 2026.6.9
          install_args: rust
          cache: false
          reshim: false
      - name: Build the shared Kache binary
        env:
          CARGO_TARGET_DIR: ${{ runner.temp }}/kache-producer-target
          RUSTC_WRAPPER: ''
          RUSTC_WORKSPACE_WRAPPER: ''
        run: cargo build --release --locked --bin kache
      - name: Install pinned workload toolchain
        run: rustup toolchain install 1.90.0 --profile minimal
      - name: Produce isolated immutable remote
        run: |
          python3 scripts/prefetch-qualification.py seed \
            --root "$RUNNER_TEMP/prefetch-producer" \
            --output "$RUNNER_TEMP/prefetch-seed-result" \
            --binary "$RUNNER_TEMP/kache-producer-target/release/kache"
      - uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1
        with:
          name: prefetch-qualification-seed
          path: ${{ runner.temp }}/prefetch-seed-result/seed.tar.gz
          if-no-files-found: error
          retention-days: 14
      - uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1
        if: always()
        with:
          name: prefetch-qualification-producer
          path: |
            ${{ runner.temp }}/prefetch-seed-result
            !${{ runner.temp }}/prefetch-seed-result/seed.tar.gz
          if-no-files-found: error
          retention-days: 14
  off-1:
    needs: [authorize, seed]
    if: >-
      always() && needs.authorize.result == 'success' &&
      (needs.seed.result == 'success' ||
      (github.event_name == 'workflow_dispatch' && needs.seed.result == 'skipped'))
    uses: ./.github/workflows/prefetch-qualification-consumer.yml
    with:
      arm: off-1
      seed_run_id: ${{ needs.authorize.outputs.seed_run_id }}
      seed_sha: ${{ needs.authorize.outputs.seed_sha }}
  on-1:
    needs: [authorize, off-1]
    uses: ./.github/workflows/prefetch-qualification-consumer.yml
    with:
      arm: on-1
      seed_run_id: ${{ needs.authorize.outputs.seed_run_id }}
      seed_sha: ${{ needs.authorize.outputs.seed_sha }}
  on-2:
    needs: [authorize, on-1]
    uses: ./.github/workflows/prefetch-qualification-consumer.yml
    with:
      arm: on-2
      seed_run_id: ${{ needs.authorize.outputs.seed_run_id }}
      seed_sha: ${{ needs.authorize.outputs.seed_sha }}
  off-2:
    needs: [authorize, on-2]
    uses: ./.github/workflows/prefetch-qualification-consumer.yml
    with:
      arm: off-2
      seed_run_id: ${{ needs.authorize.outputs.seed_run_id }}
      seed_sha: ${{ needs.authorize.outputs.seed_sha }}
  off-3:
    needs: [authorize, off-2]
    uses: ./.github/workflows/prefetch-qualification-consumer.yml
    with:
      arm: off-3
      seed_run_id: ${{ needs.authorize.outputs.seed_run_id }}
      seed_sha: ${{ needs.authorize.outputs.seed_sha }}
  on-3:
    needs: [authorize, off-3]
    uses: ./.github/workflows/prefetch-qualification-consumer.yml
    with:
      arm: on-3
      seed_run_id: ${{ needs.authorize.outputs.seed_run_id }}
      seed_sha: ${{ needs.authorize.outputs.seed_sha }}
  collect:
    if: always() && needs.authorize.result == 'success'
    needs: [authorize, off-1, on-1, on-2, off-2, off-3, on-3]
    runs-on: ${{ fromJSON(!github.event.repository.private && '"ubuntu-latest"' || vars.CI_RUNNER_LINUX) }}
    timeout-minutes: 10
    steps:
      - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
        with:
          persist-credentials: false
      - uses: actions/download-artifact@3e5f45b2cfb9172054b4087a40e8e0b5a5461e7c # v8.0.1
        continue-on-error: true
        with:
          pattern: prefetch-qualification-*-?
          path: ${{ runner.temp }}/prefetch-results
      - name: Collect complete GitHub job durations
        env:
          GH_TOKEN: ${{ github.token }}
          SEED_RUN_ID: ${{ needs.authorize.outputs.seed_run_id }}
        run: python3 scripts/prefetch-qualification.py collect --output "$RUNNER_TEMP/prefetch-timing" --results "$RUNNER_TEMP/prefetch-results" --seed-run-id "$SEED_RUN_ID"
      - uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1
        if: always()
        with:
          name: prefetch-qualification-job-times
          path: ${{ runner.temp }}/prefetch-timing
          if-no-files-found: error
          retention-days: 14