Add link-check workflow for define.sh download URLs

name: "Links"

on:

  schedule:

    - cron: "0 0 * * 0"

  workflow_dispatch:

permissions: {}

jobs:

  check:

    name: Check links

    runs-on: ubuntu-latest

    steps:

      -

        name: Checkout

        uses: actions/checkout@v6

      -

        name: Verify download links

        run: |

          set -Eeuo pipefail

          # error() is required by define.sh and called internally on failure

          error() { printf "%b%s%b" "\E[1;31m❯ " "ERROR: ${1:-}" "\E[0m\n" >&2; }

          export PLATFORM="x86_64"

          source src/define.sh

          distros=(

            "alma" "alpine" "arch" "cachy" "centos" "debian"

            "fedora" "gentoo" "kali" "kubuntu" "lmde" "mint"

            "manjaro" "mx" "nixos" "opensuse" "rocky" "slack"

            "tails" "ubuntu" "ubuntus" "xubuntu" "zorin"

          )

          failed=0

          for distro in "${distros[@]}"; do

            url=$(getURL "$distro" "url") || { echo "SKIP: $distro (no URL returned)"; continue; }

            if [ -z "$url" ]; then

              echo "SKIP: $distro (empty URL)"

              continue

            fi

            name=$(getURL "$distro" "name")

            printf "%-30s %s\n" "Checking $name..." "$url"

            if curl --disable --silent --max-time 30 --head --fail --location "$url" -o /dev/null; then

              echo "  ✔ OK"

            else

              echo "  ✘ FAILED"

              echo "::error::Link broken for $name: $url"

              failed=$((failed + 1))

            fi

          done

          if [ "$failed" -gt 0 ]; then

            echo "::error::$failed download link(s) failed verification."

            exit 1

          fi

          echo "All download links verified successfully."