main.yml

name: CI

on:
  pull_request:
  push:
    branches:
      - main
      - release/*

jobs:
  build_and_test:
    name: Build and Test

    runs-on: macos-11

    steps:
      - name: Setup environment
        shell: bash
        run: |
          # Set this if there's a code change that requires a newer Xcode than the default
          REQUIRED_VERSION=13.0
          CURRENT_VERSION=$(xcodebuild -version | grep "Xcode" | awk '{print $2}')

          echo "Current Xcode version: $CURRENT_VERSION"
          echo "Required Xcode version: $REQUIRED_VERSION"

          if [[ $CURRENT_VERSION < $REQUIRED_VERSION ]]; then
            # Path format pulled from https://github.com/actions/virtual-environments/blob/main/images/macos/macos-11-Readme.md#xcode
            NEW_XCODE="/Applications/Xcode_$REQUIRED_VERSION.app"
            echo "Updating selected Xcode to $NEW_XCODE"
            sudo xcode-select -s $NEW_XCODE

            CURRENT_VERSION=$(xcodebuild -version | grep "Xcode" | awk '{print $2}')
            echo "$?: Current Xcode version: $CURRENT_VERSION"
          fi

      - name: Checkout Repo
        uses: actions/checkout@v2
        with:
          # Check out submodules through GitHub instead of from scratch later.
          # THIS STEP WILL FAIL if the current Pods commit is only available in Private.
          # However, we can continue and the build will still pass.
          submodules: recursive
        continue-on-error: true

      - name: Initialize workflow variables
        id: vars
        shell: bash
        run: |
          # check for ACCESS_TOKEN availability (work-around for inaccessible 'secrets' object for 'if'; see <https://github.community/t5/GitHub-Actions/jobs-lt-job-id-gt-if-does-not-work-with-env-secrets/m-p/38549>)
          if [ -z $ACCESS_TOKEN ]; then unset HAS_ACCESS_TOKEN ; else HAS_ACCESS_TOKEN='true' ; fi
          echo ::set-output name=HAS_ACCESS_TOKEN::${HAS_ACCESS_TOKEN}
        env:
          ACCESS_TOKEN: "${{ secrets.ACCESS_TOKEN }}"

      # Checkout private pods repo iff we have an access token to read private repos
      - name: Checkout Private Pods
        uses: actions/checkout@v2
        # if: secrets.ACCESS_TOKEN (not supported {yet?}; see <https://github.community/t5/GitHub-Actions/jobs-lt-job-id-gt-if-does-not-work-with-env-secrets/m-p/38549>)
        if: steps.vars.outputs.HAS_ACCESS_TOKEN
        with:
          repository: signalapp/signal-pods-private
          token: ${{ secrets.ACCESS_TOKEN }}
          path: Pods
          # We don't know which commit we'll need in this step, so fetch everything so that
          # `make dependencies` doesn't end up doing it the slow way.
          fetch-depth: 0

      - name: Initialize Submodules
        run: make dependencies

      - name: Setup Ruby
        uses: ruby/setup-ruby@v1 # Reads .ruby-version file by default

      - name: Cache Bundle Install
        uses: actions/cache@v1
        with:
          path: vendor/bundle
          key: ${{ runner.os }}-gems-${{ hashFiles('**/Gemfile.lock') }}
          restore-keys: |
            ${{ runner.os }}-gems-

      - name: Bundle Install
        run: |
          bundle config path vendor/bundle
          bundle install --jobs 4 --retry 3

      - name: Build and Test
        run: |
          function formatFailures() {
            grep '<failure message' fastlane/test_output/report.junit | sed -E "s/^.*<failure message='(.*)'>(.*):([0-9]+)<\/failure>/::error file=\2,line=\3::\1/" | sed -E 's/&quot;/"/g'
            exit 1
          }

          bundle exec fastlane scan --scheme Signal --output_types junit || formatFailures

      - name: Upload build logs
        uses: actions/upload-artifact@v2
        if: failure()
        with:
          name: Logs
          path: ~/Library/Logs/scan

  lint:
    name: Lint

    runs-on: macos-11

    if: github.event_name == 'pull_request'

    steps:
      - uses: actions/checkout@v2

      - name: Fetch base commit
        run: git fetch origin --depth 1 ${{ github.base_ref }}

      - name: Install Dependencies
        run: brew install clang-format python3

      - name: Lint files changed in the PR
        run: |
          python3 Scripts/precommit.py --ref origin/${{ github.base_ref }}

          # https://help.github.com/en/actions/reference/development-tools-for-github-actions#logging-commands
          git diff --name-only | sed -E 's|(.*)|::error file=\1::Incorrectly formatted (Scripts/precommit.py)|'
          git diff --quiet || exit 1