# Run cargo-llvm-cov and upload to codecov.io

name: Code Coverage

on:
  workflow_dispatch:
  push:
    branches:
      - main
    paths:
      - "**.rs"
      - ".github/workflows/codecov.yml"

concurrency:
  group: ${{ github.workflow }}-${{ github.ref }}
  cancel-in-progress: ${{ github.ref_name != 'main' }}

jobs:
  coverage:
    name: Code Coverage
    runs-on: ubuntu-latest
    steps:
      - name: Checkout
        uses: taiki-e/checkout-action@v1

      - name: Clone submodules
        uses: ./.github/actions/clone-submodules

      - uses: Boshen/setup-rust@main
        with:
          cache-key: codecov
          save-cache: ${{ github.ref_name == 'main' }}
          tools: cargo-llvm-cov
          components: llvm-tools-preview

      - name: Run
        env:
          # Increase stack size to 10MB, avoid `oxc_prettier` from stack overflowing when printing long assignment expressions.
          RUST_MIN_STACK: 104857600
        run: cargo codecov --lcov --output-path lcov.info

      - name: Upload Artifact
        uses: actions/upload-artifact@v4
        with:
          name: codecov
          path: lcov.info

  # codecov often fails, use another workflow for retry
  upload-codecov:
    name: Upload coverage file
    runs-on: ubuntu-latest
    needs: coverage
    # Check if the event is not triggered by a fork by checking whether CODECOV_TOKEN is set
    env:
      CODECOV_TOKEN: ${{ secrets.CODECOV_TOKEN }}
    steps:
      - name: Checkout
        if: env.CODECOV_TOKEN
        uses: taiki-e/checkout-action@v1

      - name: Download coverage file
        if: env.CODECOV_TOKEN
        uses: actions/download-artifact@v4
        with:
          name: codecov

      - name: Upload to codecov.io
        if: env.CODECOV_TOKEN
        uses: codecov/codecov-action@v4
        with:
          token: ${{ secrets.CODECOV_TOKEN }}
          fail_ci_if_error: true
          files: lcov.info