caching-hack.yml

# Unfortunately, writing to the Github Actions cache from a merge queue doesn't work correctly.
# The `merge_group` event runs on a temporary branch, which prevents it from being used from
# any other branches: https://github.com/orgs/community/discussions/47349
#
# The hacky solution is to re-run certain workflows on pushes to `main`,
# as caches written from `main` are accessible from all other branches.
#
# To avoid wasting money, we should only use the standard (free) Github Actions runners.
name: Caching Hack (re-runs actions on 'main' to update the cache)

on:
  push:
    branches: ["main"]

permissions:
  contents: read
  actions: read

jobs:
  check-python-client-build:
    if: github.repository == 'tensorzero/tensorzero'
    uses: ./.github/workflows/python-client-build.yml

  build-gateway:
    if: github.repository == 'tensorzero/tensorzero'
    strategy:
      matrix:
        runner:
          - ubuntu-latest
          - windows-latest
    runs-on: ${{ matrix.runner }}
    steps:
      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683
      - name: Install Rust toolchain
        run: |
          for attempt in 1 2 3; do
            if rustup toolchain install stable && rustup default stable; then
              break
            fi
            if [ $attempt -eq 3 ]; then
              echo "Failed to install Rust toolchain after 3 attempts"
              exit 1
            fi
            sleep $((10 * attempt))
          done
        shell: bash
      - uses: Swatinem/rust-cache@9d47c6ad4b02e050fd481d890b2ea34778fd09d6
        with:
          cache-provider: "buildjet"
          # We use this cache key from other jobs that need to build the gateway
          shared-key: "build-gateway-cache"
      - run: |
          # Run both of these, as they build dependencies with different features
          cargo build --features e2e_tests --tests
          cargo build-e2e