railway-update.yml

name: Update Dockerfile for Railway.app

# The workflow was EOL before its birth.
# https://github.com/DIYgod/RSSHub/pull/9626

on:
  schedule:
    - cron: '0 12 * * *'  # only valid if the workflow exists in the default branch
  workflow_dispatch: ~

jobs:
  check-env:
    permissions:
      contents: none
    runs-on: ubuntu-latest
    outputs:
      check-downstream: ${{ steps.check-downstream.outputs.downstream }}
      matrix: ${{ steps.set-matrix.outputs.matrix }}
    steps:
      - id: check-downstream
        env:
          DOCKER_USERNAME: ${{ secrets.DOCKER_USERNAME }}
        name: Check downstream
        if: ${{ env.DOCKER_USERNAME != '' && env.DOCKER_USERNAME != 'diygod' }}
        run: echo "::set-output name=downstream::true"
      - id: set-matrix
        name: Set matrix
        run: |
          U='[ { "type": "upstream", "ref": "railway", "fallback-ref": "railway-downstream" } ]'
          D='[ { "type": "downstream", "ref": "railway-downstream", "fallback-ref": "railway" } ]'
          if [ '${{ steps.check-downstream.outputs.downstream }}' == 'true' ]; then
            echo ::set-output name=matrix::{\"include\":$(jq -c --argjson u "$U" --argjson d "$D" -n '$u+$d')}
          else
            echo ::set-output name=matrix::{\"include\":$(echo $U | jq -c)}
          fi

  upstream:
    runs-on: ubuntu-latest
    needs: check-env
    strategy:
      matrix: ${{ fromJson(needs.check-env.outputs.matrix) }}
    name: Update Dockerfile (${{ matrix.type }})
    permissions:
      contents: write
    steps:
      - name: Checkout (master)
        id: checkout-master
        uses: actions/checkout@v3
        continue-on-error: true  # would fail if the repo is created by Railway.app
        with:
          ref: master

      - name: Checkout (${{ matrix.ref }})
        if: steps.checkout-master.outcome == 'failure'
        id: checkout-self
        uses: actions/checkout@v3
        continue-on-error: true
        with:
          ref: ${{ matrix.ref }}

      - name: Checkout (fallback)
        if: steps.checkout-self.outcome == 'failure'
        uses: actions/checkout@v3
        with:
          ref: ${{ matrix.ref-fallback }}

      - name: Set up deploy folder
        id: deploy-folder
        run: |
          set -ex
          if [ $(git branch --show-current) == 'master' ]; then
            mkdir -p railway/
            cp --parents .github/workflows/railway-update.yml railway/
            cp --parents -r scripts/railway/ railway/
            mv railway/scripts/railway/README.md railway/README.md
            ls -lah railway/
            echo ::set-output name=path::railway
            echo ::set-output name=dockerfile::railway/Dockerfile
          else
            echo ::set-output name=path::.
            echo ::set-output name=dockerfile::Dockerfile
          fi

      - name: Set up Python 3.10
        uses: actions/setup-python@v3
        with:
          python-version: '3.10'

      # Why Python? Oh, do you really love introducing tons of third-party (recursive) dependencies from npm?
      # Once deployed via the "Deploy on Railway" button, there's NO WAY to remotely upgrade the dependencies of this
      # workflow for users. (refer to scripts/railway/README.md for more details)
      # Indeed, there are some workarounds to write a JS without any third-party dependencies, but, wow, I mean, it is
      # even uglier and more human-unfriendly than introducing a Python script.
      - name: Update Dockerfile (upstream)
        if: ${{ matrix.type == 'upstream' }}
        run: python -u scripts/railway/update.py
        env:
          DOCKERFILE: ${{ steps.deploy-folder.outputs.dockerfile }}

      # step output with secrets will be ignored, we have no choice but to use a separate step to read the secret
      - name: Update Dockerfile (downstream)
        if: ${{ matrix.type == 'downstream' }}
        run: python -u scripts/railway/update.py
        env:
          USERNAME: ${{ secrets.DOCKER_USERNAME }}
          DOCKERFILE: ${{ steps.deploy-folder.outputs.dockerfile }}

      - name: Get current date
        id: date
        run: echo "::set-output name=date::$(date -uIseconds)"

      # FIXME: buggy, please replace the action with a .github-un-sanitized one
      # https://github.com/JamesIves/github-pages-deploy-action/discussions/1075#discussion-4000071
      - name: Push
        uses: JamesIves/github-pages-deploy-action@v4
        with:
          branch: ${{ matrix.ref }}
          folder: ${{ steps.deploy-folder.outputs.path }}
          clean: false
          git-config-name: github-actions[bot]
          git-config-email: 41898282+github-actions[bot]@users.noreply.github.com
          commit-message: Updated ${{ steps.date.outputs.date }}
          single-commit: true