ci.yml

name: Build & test

on:
  pull_request:
    paths:
    - "backend/**"
    - "frontend/**"
    - "docs/docs/setup/config.toml"
    - "util/dev-config/*"
    - ".deployment/templates/config.toml"
    - "util/dummy-login/dist/index.js"
    - ".github/workflows/ci.yml"
    - ".github/workflows/deploy.yml"
  push:
    branches:
      - "*"
    tags-ignore:
      - "*"


env:
  CARGO_TERM_COLOR: always
  RUSTFLAGS: --deny warnings

jobs:
  main:
    runs-on: ubuntu-20.04
    services:
      postgres:
        image: postgres:11
        env:
          POSTGRES_USER: tobira
          POSTGRES_PASSWORD: tobira
          POSTGRES_DB: tobira
        ports:
          - 5432:5432
        options: '--name tobira_pg'

    steps:
    - uses: actions/checkout@v3

    - name: Restore backend cache
      uses: Swatinem/rust-cache@v2
      with:
        workspaces: backend

    # Frontend cache: only the NPM folder is cached, not the node_modules, as
    # recommended here: https://github.com/actions/cache/blob/main/examples.md#node---npm
    - name: Restore NPM cache
      uses: actions/cache@v3
      with:
        path: ~/.npm
        key: ${{ runner.os }}-node-${{ hashFiles('frontend/package-lock.json') }}

    # Figure out build mode
    - name: Determine build mode
      run: |
        if [[ "$GITHUB_REPOSITORY" == "elan-ev/tobira" ]] && [ "$GITHUB_REF" == "refs/heads/master" ]; then
          echo "ci_cargo_flags=--release" >> $GITHUB_ENV
          echo "ci_targetdir=target/release" >> $GITHUB_ENV
          echo "ci_webpack_flags=production" >> $GITHUB_ENV
        else
          echo "ci_cargo_flags=--features=embed-in-debug" >> $GITHUB_ENV
          echo "ci_targetdir=target/debug" >> $GITHUB_ENV
          echo "ci_webpack_flags=development" >> $GITHUB_ENV
        fi

    # The actual building and testing!
    - name: Installing frontend dependencies (npm ci)
      working-directory: frontend
      run: npm ci
    - name: Generate GraphQL query types
      working-directory: frontend
      run: npx relay-compiler
    - name: Lint frontend
      working-directory: frontend
      run: npx eslint --max-warnings 0 .
    - name: Build frontend
      working-directory: frontend
      run: npx webpack --mode=${{ env.ci_webpack_flags }}
    - name: Typecheck frontend
      working-directory: frontend
      run: npx tsc

    - name: Build backend
      working-directory: backend
      run: cargo build ${{ env.ci_cargo_flags }}
    - name: Test backend
      working-directory: backend
      run: cargo test

    - name: Move Tobira binary
      run: mv backend/${{ env.ci_targetdir }}/tobira tobira
    - name: Compress Tobira binary
      run: objcopy --compress-debug-sections tobira
    - name: Make sure `schema.graphql` is up to date
      run: ./tobira export-api-schema | diff -u --color=always - frontend/src/schema.graphql
    - name: Make sure `docs/docs/setup/config.toml` is up to date
      run: ./tobira write-config | diff -u --color=always - docs/docs/setup/config.toml


    # Test DB migrations
    - name: Download latest DB dump
      run: curl --silent --output db-dump.xz https://s3.opencast-niedersachsen.de/tobira/db-dump-latest.xz
    - name: Decompress DB dump
      run: xz -d db-dump.xz
    # We need to use the same version as the DB, so we use 'docker exec'
    - name: Restore DB dump
      run: |
        docker exec -i tobira_pg pg_restore \
          --dbname postgresql://tobira:tobira@localhost/postgres \
          --clean \
          --create \
          --if-exists \
          < db-dump || true
    - name: Run migrations
      run: ./tobira db migrate --config util/dev-config/config.toml


    # Prepare the ID (used in the subdomain) for deployment. This has to be done
    # here because in the `deploy` workflow, we don't have access to the correct
    # `GITHUB_REF` anymore.
    - name: Write deploy ID to file
      run: ./.deployment/deploy-id.sh "$GITHUB_REF" > deploy-id

    # Archive files to be used in the `deploy` workflow
    - name: Archive deployment files as artifact
      uses: actions/upload-artifact@v3
      with:
        name: test-deployment-files
        path: |
          tobira
          util/dev-config/logo-large.svg
          util/dev-config/logo-small.svg
          util/dev-config/logo-large-dark.svg
          util/dev-config/favicon.svg
          deploy-id
          .deployment/templates/config.toml
          util/dummy-login/dist/index.js