name: ci

on:
  push:
    branches:
      - main
  pull_request:
    branches:
      - main

# Note: if: success() is used in several jobs -
# this ensures that it only executes if all previous jobs succeeded.

# if: steps.cache-yarn.outputs.cache-hit != 'true'
# will skip running `yarn install` if it successfully fetched from cache

jobs:
  prebuild:
    name: Pre-build checks
    runs-on: ubuntu-latest
    env:
      CODECOV_TOKEN: ${{ secrets.CODECOV_TOKEN }}
    steps:
      - name: Checkout repo
        uses: actions/checkout@v2

      - name: Install Node.js v12
        uses: actions/setup-node@v2
        with:
          node-version: "12"

      - name: Install helm
        uses: azure/setup-helm@v1.1

      - name: Fetch dependencies from cache
        id: cache-yarn
        uses: actions/cache@v2
        with:
          path: "**/node_modules"
          key: yarn-build-${{ hashFiles('**/yarn.lock') }}

      - name: Install dependencies
        if: steps.cache-yarn.outputs.cache-hit != 'true'
        run: yarn --frozen-lockfile

      - name: Audit for vulnerabilities
        run: yarn _audit
        if: success()

      - name: Run yarn fmt
        run: yarn fmt
        if: success()

      - name: Run yarn lint
        run: yarn lint
        if: success()

      - name: Run code-server unit tests
        run: yarn test:unit
        if: success()

      - name: Upload coverage report to Codecov
        run: yarn coverage
        if: success()

  build:
    name: Build
    needs: prebuild
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v2
        with:
          fetch-depth: 0

      - name: Install Node.js v12
        uses: actions/setup-node@v2
        with:
          node-version: "12"

      - name: Fetch dependencies from cache
        id: cache-yarn
        uses: actions/cache@v2
        with:
          path: "**/node_modules"
          key: yarn-build-${{ hashFiles('**/yarn.lock') }}

      - name: Install dependencies
        if: steps.cache-yarn.outputs.cache-hit != 'true'
        run: yarn --frozen-lockfile

      - name: Build code-server
        run: yarn build

      # Parse the hash of the latest commit inside lib/vscode
      # use this to avoid rebuilding it if nothing changed
      # How it works: the `git log` command fetches the hash of the last commit
      # that changed a file inside `lib/vscode`. If a commit changes any file in there,
      # the hash returned will change, and we rebuild vscode. If the hash did not change,
      # (for example, a change to `src/` or `docs/`), we reuse the same build as last time.
      # This saves a lot of time in CI, as compiling VSCode can take anywhere from 5-10 minutes.
      - name: Get latest lib/vscode rev
        id: vscode-rev
        run: echo "::set-output name=rev::$(git log -1 --format='%H' ./lib/vscode)"

      - name: Attempt to fetch vscode build from cache
        id: cache-vscode
        uses: actions/cache@v2
        with:
          path: |
            lib/vscode/.build
            lib/vscode/out-build
            lib/vscode/out-vscode
            lib/vscode/out-vscode-min
          key: vscode-build-${{ steps.vscode-rev.outputs.rev }}

      - name: Build vscode
        if: steps.cache-vscode.outputs.cache-hit != 'true'
        run: yarn build:vscode

      # The release package does not contain any native modules
      # and is neutral to architecture/os/libc version.
      - name: Create release package
        run: yarn release
        if: success()

      # https://github.com/actions/upload-artifact/issues/38
      - name: Compress release package
        run: tar -czf package.tar.gz release

      - name: Upload npm package artifact
        uses: actions/upload-artifact@v2
        with:
          name: npm-package
          path: ./package.tar.gz

  # TODO: cache building yarn --production
  # possibly 2m30s of savings(?)
  # this requires refactoring our release scripts
  package-linux-amd64:
    name: x86-64 Linux build
    needs: build
    runs-on: ubuntu-latest
    container: "centos:7"

    steps:
      - uses: actions/checkout@v2

      - name: Install Node.js v12
        uses: actions/setup-node@v2
        with:
          node-version: "12"

      - name: Install development tools
        run: |
          yum install -y epel-release centos-release-scl
          yum install -y devtoolset-9-{make,gcc,gcc-c++} jq rsync

      - name: Install nfpm and envsubst
        run: |
          curl -sfL https://install.goreleaser.com/github.com/goreleaser/nfpm.sh | sh -s -- -b ~/.local/bin v2.3.1
          curl -L https://github.com/a8m/envsubst/releases/download/v1.1.0/envsubst-`uname -s`-`uname -m` -o envsubst
          chmod +x envsubst
          mv envsubst ~/.local/bin
          echo "$HOME/.local/bin" >> $GITHUB_PATH

      - name: Install yarn
        run: npm install -g yarn

      - name: Download npm package
        uses: actions/download-artifact@v2
        with:
          name: npm-package

      - name: Decompress npm package
        run: tar -xzf package.tar.gz

      # NOTE: && here is deliberate - GitHub puts each line in its own `.sh`
      # file when running inside a docker container.
      - name: Build standalone release
        run: source scl_source enable devtoolset-9 && yarn release:standalone

      - name: Sanity test standalone release
        run: yarn test:standalone-release

      - name: Build packages with nfpm
        run: yarn package

      - name: Upload release artifacts
        uses: actions/upload-artifact@v2
        with:
          name: release-packages
          path: ./release-packages

  # NOTE@oxy:
  # We use Ubuntu 16.04 here, so that our build is more compatible
  # with older libc versions. We used to (Q1'20) use CentOS 7 here,
  # but it has a full update EOL of Q4'20 and a 'critical security'
  # update EOL of 2024. We're dropping full support a few years before
  # the final EOL, but I don't believe CentOS 7 has a large arm64 userbase.
  # It is not feasible to cross-compile with CentOS.

  # Cross-compile notes: To compile native dependencies for arm64,
  # we install the aarch64 cross toolchain and then set it as the default
  # compiler/linker/etc. with the AR/CC/CXX/LINK environment variables.
  # qemu-user-static on ubuntu-16.04 currently doesn't run Node correctly,
  # so we just build with "native"/x86_64 node, then download arm64 node
  # and then put it in our release. We can't smoke test the arm64 build this way,
  # but this means we don't need to maintain a self-hosted runner!
  package-linux-arm64:
    name: Linux ARM64 cross-compile build
    needs: build
    runs-on: ubuntu-16.04
    env:
      AR: aarch64-linux-gnu-ar
      CC: aarch64-linux-gnu-gcc
      CXX: aarch64-linux-gnu-g++
      LINK: aarch64-linux-gnu-g++
      NPM_CONFIG_ARCH: arm64

    steps:
      - uses: actions/checkout@v2

      - name: Install Node.js v12
        uses: actions/setup-node@v2
        with:
          node-version: "12"

      - name: Install nfpm
        run: |
          curl -sfL https://install.goreleaser.com/github.com/goreleaser/nfpm.sh | sh -s -- -b ~/.local/bin v2.3.1
          echo "$HOME/.local/bin" >> $GITHUB_PATH

      - name: Install cross-compiler
        run: sudo apt install g++-aarch64-linux-gnu

      - name: Download npm package
        uses: actions/download-artifact@v2
        with:
          name: npm-package

      - name: Decompress npm package
        run: tar -xzf package.tar.gz

      - name: Build standalone release
        run: yarn release:standalone

      - name: Replace node with arm64 equivalent
        run: |
          wget https://nodejs.org/dist/v12.18.4/node-v12.18.4-linux-arm64.tar.gz
          tar -xzf node-v12.18.4-linux-arm64.tar.gz node-v12.18.4-linux-arm64/bin/node --strip-components=2
          mv ./node ./release-standalone/lib/node

      - name: Build packages with nfpm
        run: yarn package arm64

      - name: Upload release artifacts
        uses: actions/upload-artifact@v2
        with:
          name: release-packages
          path: ./release-packages

  package-macos-amd64:
    name: x86-64 macOS build
    needs: build
    runs-on: macos-latest
    steps:
      - uses: actions/checkout@v2

      - name: Install Node.js v12
        uses: actions/setup-node@v2
        with:
          node-version: "12"

      - name: Install nfpm
        run: |
          curl -sfL https://install.goreleaser.com/github.com/goreleaser/nfpm.sh | sh -s -- -b ~/.local/bin v2.3.1
          echo "$HOME/.local/bin" >> $GITHUB_PATH

      - name: Download npm package
        uses: actions/download-artifact@v2
        with:
          name: npm-package

      - name: Decompress npm package
        run: tar -xzf package.tar.gz

      - name: Build standalone release
        run: yarn release:standalone

      - name: Sanity test standalone release
        run: yarn test:standalone-release

      - name: Build packages with nfpm
        run: yarn package

      - name: Upload release artifacts
        uses: actions/upload-artifact@v2
        with:
          name: release-packages
          path: ./release-packages

  test-e2e:
    name: End-to-end tests
    needs: package-linux-amd64
    runs-on: ubuntu-latest
    env:
      PASSWORD: e45432jklfdsab
      CODE_SERVER_ADDRESS: http://localhost:8080
    steps:
      - uses: actions/checkout@v2

      - name: Install Node.js v12
        uses: actions/setup-node@v2
        with:
          node-version: "12"

      - name: Install playwright
        uses: microsoft/playwright-github-action@v1

      - name: Fetch dependencies from cache
        id: cache-yarn
        uses: actions/cache@v2
        with:
          path: "**/node_modules"
          key: yarn-build-${{ hashFiles('**/yarn.lock') }}

      - name: Download release packages
        uses: actions/download-artifact@v2
        with:
          name: release-packages
          path: ./release-packages

      - name: Untar code-server file
        run: |
          cd release-packages && tar -xzf code-server*-linux-amd64.tar.gz

      - name: Install dependencies
        if: steps.cache-yarn.outputs.cache-hit != 'true'
        run: yarn --frozen-lockfile

      # HACK: this shouldn't need to exist, but put it here anyway
      # in an attempt to solve Playwright cache failures.
      - name: Reinstall playwright
        if: steps.cache-yarn.outputs.cache-hit == 'true'
        run: |
          cd test/
          rm -r node_modules/playwright
          yarn install --check-files

      - name: Run end-to-end tests
        run: |
          ./release-packages/code-server*-linux-amd64/bin/code-server --log trace &
          yarn test:e2e

      - name: Upload test artifacts
        if: always()
        uses: actions/upload-artifact@v2
        with:
          name: failed-test-videos
          path: ./test/test-results

      - name: Remove release packages and test artifacts
        run: rm -rf ./release-packages ./test/test-results

  docker-amd64:
    runs-on: ubuntu-latest
    needs: package-linux-amd64
    steps:
      - uses: actions/checkout@v2

      - name: Download release package
        uses: actions/download-artifact@v2
        with:
          name: release-packages
          path: ./release-packages

      - name: Run ./ci/steps/build-docker-image.sh
        run: ./ci/steps/build-docker-image.sh

      - name: Upload release image
        uses: actions/upload-artifact@v2
        with:
          name: release-images
          path: ./release-images

  # TODO: this is the last place where we use our self-hosted arm64 runner.
  # In the future, consider switching to docker buildx + qemu,
  # thus removing the requirement for us to maintain the runner.
  docker-arm64:
    runs-on: ubuntu-arm64-latest
    needs: package-linux-arm64
    steps:
      - uses: actions/checkout@v2

      - name: Download release package
        uses: actions/download-artifact@v2
        with:
          name: release-packages
          path: ./release-packages

      - name: Run ./ci/steps/build-docker-image.sh
        run: ./ci/steps/build-docker-image.sh

      - name: Upload release image
        uses: actions/upload-artifact@v2
        with:
          name: release-images
          path: ./release-images