name: "Hourly import channel to Elasticsearch"

on:

  schedule:
  - cron: '0 * * * *'

jobs:

  hourly-import-channel:

    runs-on: ubuntu-latest

    strategy:
      fail-fast: true
      matrix:
        channel:
          - unstable
          - 20.09
          - 20.03

    env:
      AWS_DEFAULT_REGION: us-east-1
      AWS_S3_URL: s3://nix-releases/nixpkgs

    steps:

    - name: Checking out the repository
      uses: actions/checkout@v2
      with:
        fetch-depth: 0

    - name: Installing Nix
      uses: cachix/install-nix-action@v12

    - uses: cachix/cachix-action@v8
      with:
        name: nixos-search
        signingKey: '${{ secrets.CACHIX_SIGNING_KEY }}'

    - name: Install unstable channel
      run: |
        nix-channel --add https://nixos.org/channels/nixpkgs-unstable
        nix-channel --update

    - name: Installing awscli
      run: |
        nix-env -iA nixpkgs.awscli2

    - name: Check for latest evaluation in ${{ matrix.channel }} channel
      run: |
        if [ "${{ matrix.channel }}" = "unstable" ]; then
          RELEASE=$(aws s3 ls --no-sign-request "$AWS_S3_URL/" | grep '/$' | cut -d' ' -f29 | sort | tail -1 | sed 's|/||')
        else
          RELEASE=$(aws s3 ls --no-sign-request "$AWS_S3_URL/" | grep 'nixpkgs-${{ matrix.channel }}pre' | grep '/$' | cut -d' ' -f29 | sort | tail -1 | sed 's|/||')
        fi
        aws s3 cp --no-sign-request "$AWS_S3_URL/$RELEASE/src-url" ./
        EVAL_ID=$(cat src-url | cut -c30-)
        echo "EVAL_ID=${EVAL_ID}" >> $GITHUB_ENV

    - name: Download latest builds for ${{ matrix.channel }} channel (if needed)
      if: steps.eval-cache.outputs.cache-hit != 'true'
      run: |
        mkdir -p ./eval-cache
        cp ./src-url ./eval-cache/
        curl -H "Content-Type: application/json" "$(cat ./eval-cache/src-url)/builds" -o ./eval-cache/builds.json

    - name: Cache ${{ matrix.channel }} channel builds
      id: eval-cache
      uses: actions/cache@v2
      with:
        path: ./eval-cache
        key: eval-cache-${{ env.EVAL_ID }}

    - name: Installing NixFlakes
      run: |
        nix-env -iA nixpkgs.nixFlakes
        echo 'experimental-features = nix-command flakes' | sudo tee -a /etc/nix/nix.conf
        nix --version
        cat /etc/nix/nix.conf
        echo "$HOME/.nix-profile/bin" >> $GITHUB_PATH

    - name: Building import_scripts
      run: |
        nix build ./#packages.x86_64-linux.import_scripts

    - name: Import ${{ matrix.channel }} channel
      run: |
        cp ./eval-cache/builds.json ./eval-${{ env.EVAL_ID }}.json
        ./result/bin/import-channel --es-url ${{ secrets.ELASTICSEARCH_URL }} --channel ${{ matrix.channel }} -vvv
      if: github.repository == 'NixOS/nixos-search'