generate.yaml

name: Generate Container Guts
on:
  pull_request: []
  push:
    branches:
      - main
  schedule:
    - cron:  '0 4 * * *'
  workflow_dispatch: 
    inputs:
      docker_uri:
        description: 'Docker identifier to generate recipe for'
        required: true

jobs:
  generate-recipe:
    if: (inputs.docker_uri != '')
    runs-on: ubuntu-latest
    name: ${{ inputs.docker_uri }}
    steps:
      - name: Checkout Repository
        uses: actions/checkout@v4
      - name: Guts for ${{ inputs.docker_uri }}
        uses: singularityhub/guts/action/manifest@main
        with:
          image: ${{ inputs.docker_uri }}

  generate-recipes:
    if: (inputs.docker_uri == '')
    runs-on: ubuntu-latest
    strategy:
      fail-fast: false

      # Here is our matrix of base images to generate
      matrix:     
        image: ["ubuntu:18.04", "ubuntu:20.04", "ubuntu:22.04", "ubuntu:24.04",
                "debian:12", "debian:11", "debian:10", "debian:9", 
                "centos:6", "centos:7", "centos:8",
                "rockylinux:8.6", "rockylinux:9.0",
                "fedora:34", "fedora:35", "fedora:36", "fedora:37", 
                "fedora:38", "fedora:39", "fedora:40",
                "alpine:3.7", "alpine:3.8", "alpine:3.9", "alpine:3.10", 
                "alpine:3.11", "alpine:3.12", "alpine:3.13", "alpine:3.14", 
                "alpine:3.15", "alpine:3.16", "alpine:3.17", "alpine:3.18", 
                "alpine:3.19", "alpine:3.20", 
                "busybox:1.25", "busybox:1.26", "busybox:1.27", "busybox:1.28",
                "busybox:1.29", "busybox:1.30", "busybox:1.31", "busybox:1.32",
                "busybox:1.33", "busybox:1.34"]

    name: Generate Matrix
    steps:
      - name: Install Guts
        run: pip install --break-system-packages git+https://github.com/singularityhub/guts@main

      - name: Guts for ${{ matrix.image }}
        uses: singularityhub/guts/action/manifest@main
        id: guts
        with:
          image: ${{ matrix.image }}
          include: paths fs
          outdir: /tmp

      - name: View Output
        env:
          outfile: ${{ steps.guts.outputs.outfile }}
        run: |
          echo $outfile
          cat ${outfile}

      - name: Prepare Dest Directory
        env:
          outfile: ${{ steps.guts.outputs.outfile }}
        run: |
          root=$(python -c "print('${outfile}'.split('/')[2])")
          echo ${root}
          echo "root=${root}" >> $GITHUB_ENV

      - name: Checkout Repository
        if: (github.event_name != 'pull_request')
        uses: actions/checkout@v4
        
      - name: Push new result
        if: (github.event_name != 'pull_request')
        env:
          dest: ${{ env.outdir }}/${{ matrix.image }}.json
          outfile: ${{ steps.guts.outputs.outfile }}
          root: ${{ env.root }}
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        run: |
          git remote set-url origin "https://x-access-token:${GITHUB_TOKEN}@github.com/${GITHUB_REPOSITORY}.git"    
          git config --global user.name "github-actions"
          git config --global user.email "github-actions@users.noreply.github.com"
          git config --global pull.rebase true
          git checkout main

          git branch
          ls
          cp -R /tmp/${root} .
          git add ${root}/*
          ls
          ls ${root}
          if git diff-index --quiet HEAD --; then
              printf "No changes\n"
          else
             printf "Changes\n"
             today=$(date '+%Y-%m-%d')
             git commit -a -m "Automated deployment to add/update ${outdir}"  
             while ! git push origin main
             do
                echo "Trying again..."
               sleep $[ ( $RANDOM % 10 )  + 1 ]s
                git pull origin main
             done             
          fi