detect-releases.yml

name: Detect and Publish IB Gateway/TWS Releases

on:
  schedule:
    - cron: "0 8 * * *"

  workflow_dispatch:

jobs:
  detect-release:
    runs-on: ubuntu-latest
    strategy:
      fail-fast: true
      matrix:
        channel: ["stable", "latest"]
    steps:
      - uses: actions/checkout@v3

      - name: Get Latest IB Gateway Version
        id: version
        run: |
          res=$(curl -s https://download2.interactivebrokers.com/installers/ibgateway/${{ matrix.channel }}-standalone/version.json)
          build_version=$(grep -oP '(?<=buildVersion":")[^"]+' <<< "$res")
          echo "build_version=$build_version" >> $GITHUB_OUTPUT

      - name: Check Latest Version against Releases
        id: check-update
        env:
          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        run: |
          if gh release list | grep -qF '${{ steps.version.outputs.build_version }}-${{ matrix.channel }}'; then
            echo "has_update=false" >> $GITHUB_OUTPUT
          else
            echo "has_update=true" >> $GITHUB_OUTPUT
          fi
          
      - name: Download IB Gateway
        if: ${{ steps.check-update.outputs.has_update == 'true' }}
        run: |
          download_url='https://download2.interactivebrokers.com/installers/ibgateway/${{ matrix.channel }}-standalone/ibgateway-${{ matrix.channel }}-standalone-linux-x64.sh'
          dest='ibgateway-${{ steps.version.outputs.build_version }}-standalone-linux-x64.sh'
          curl -sSL "$download_url" --output "$dest"
          sha256sum "$dest" > "${dest}.sha256"

      - name: Create release
        if: ${{ steps.check-update.outputs.has_update == 'true' }}
        env:
          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        run: |
          gh release create '${{ steps.version.outputs.build_version }}-${{ matrix.channel }}' \
            -t 'ibgateway ${{ steps.version.outputs.build_version }}-${{ matrix.channel }}' \
            ibgateway-*

      - name: Update ${{ matrix.channel }}
        if: ${{ steps.check-update.outputs.has_update == 'true' }}
        run: ./build.sh ${{ matrix.channel }} ${{ steps.version.outputs.build_version }}

      - name: Create PR
        if: ${{ steps.check-update.outputs.has_update == 'true' }}
        env:
          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        run: |
          t_branch='update-${{ matrix.channel }}-to-${{ steps.version.outputs.build_version }}'
          git config user.name github-actions
          git config user.email github-actions@github.com
          git pull
          git checkout -b "$t_branch" origin/master
          git add '${{ matrix.channel }}'
          git commit -m 'Update `${{ matrix.channel }}` to `${{ steps.version.outputs.build_version }}`'
          git push --set-upstream origin "$t_branch"
          gh pr create --base master --fill