pr.ci.js.yml

# This workflow will do a clean install of node dependencies and run tests across different versions of node
# For more information see: https://help.github.com/actions/language-and-framework-guides/using-nodejs-with-github-actions

name: typescript / pr

on: pull_request

jobs:
  precheck:
    runs-on: ubuntu-22.04

    steps:
      - name: Checkout PR
        uses: actions/checkout@8e5e7e5ab8b370d6c329ec480221332ada57f0ab

      - name: Use Node.js LTS (18.x)
        uses: actions/setup-node@64ed1c7eab4cce3362f8c340dee64e5eaeef8f7c
        with:
          node-version: 18.x

      - name: Install project dependencies
        run: yarn install --frozen-lockfile

      - name: Run exercism/typescript ci precheck (stub files, config integrity) for changed exercises
        run: |
          PULL_REQUEST_URL=$(jq -r ".pull_request.url" "$GITHUB_EVENT_PATH")
          curl --url $"${PULL_REQUEST_URL}/files?per_page=100" --header 'authorization: Bearer ${{ secrets.GITHUB_TOKEN }}' | \
            jq -c '.[] | select(.status == "added" or .status == "modified") | select(.filename | match("\\.(js|jsx|ts|tsx|md|json)$")) | .filename' | \
            xargs -r yarn dlx -p @babel/core -p @babel/node babel-node scripts/pr-check

  ci:
    runs-on: ubuntu-22.04

    strategy:
      matrix:
        node-version: [18.x, 20.x]

    steps:
      - name: Checkout PR
        uses: actions/checkout@8e5e7e5ab8b370d6c329ec480221332ada57f0ab

      - name: Use Node.js ${{ matrix.node-version }}
        uses: actions/setup-node@64ed1c7eab4cce3362f8c340dee64e5eaeef8f7c
        with:
          node-version: ${{ matrix.node-version }}

      - name: Install project dependencies
        run: yarn install --frozen-lockfile

      - name: Run exercism/typescript ci (runs tests) for changed/added exercises
        run: |
          PULL_REQUEST_URL=$(jq -r ".pull_request.url" "$GITHUB_EVENT_PATH")
          curl --url $"${PULL_REQUEST_URL}/files?per_page=100" --header 'authorization: Bearer ${{ secrets.GITHUB_TOKEN }}' | \
            jq -c '.[] | select(.status == "added" or .status == "modified") | select(.filename | match("\\.(js|jsx|ts|tsx|md|json)$")) | .filename' | \
            xargs -r yarn dlx -p @babel/core -p @babel/node babel-node scripts/pr

  impersonate:
    # This job tries to run tests for the 'hello-world' exercise, but
    # simulating what would happen if a student runs the tests standalone.
    # We do this by removing all project files in the root.

    runs-on: ubuntu-22.04

    steps:
      - uses: actions/checkout@8e5e7e5ab8b370d6c329ec480221332ada57f0ab
      - name: Use Node.js 20.x
        uses: actions/setup-node@64ed1c7eab4cce3362f8c340dee64e5eaeef8f7c
        with:
          node-version: 20.x

      - name: Remove root project files
        run: rm -f package.json yarn.lock .yarnrc.yml

      - name: Move solution file so that tests pass
        working-directory: exercises/practice/hello-world
        run: |
          rm -f hello-world.ts
          cp ./.meta/proof.ci.ts hello-world.ts

      - name: Install project dependencies
        working-directory: exercises/practice/hello-world
        run: yarn install --no-immutable

      - name: Run tests
        working-directory: exercises/practice/hello-world
        run: yarn test