Add script and action for generating JSON for Repology (#7376)

.github/workflows/Repology.yml

@@ -0,0 +1,23 @@
+name: Generate Repology JSON
+
+on:
+  schedule:
+    - cron: '0 0 * * 0'  # Every Sunday at midnight
+jobs:
+  generate:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+      - name: Generate JSON
+        run: |
+            sudo docker pull satmandu/crewbuild:amd64
+            sudo docker run -t -v $(pwd):/usr/local/json satmandu/crewbuild:amd64 /bin/bash -c "
+            git clone https://github.com/chromebrew/chromebrew
+            cd chromebrew/tools
+            ruby json.rb
+            cp repology.json /usr/local/json"
+      - name: Upload JSON arifact
+        uses: actions/upload-artifact@v3
+        with:
+          name: repology-json
+          path: repology.json

tools/json.rb

@@ -0,0 +1,16 @@
+require 'json'
+
+# Add >LOCAL< lib to LOAD_PATH
+$LOAD_PATH.unshift '../lib'
+
+require_relative '../lib/const'
+require_relative '../lib/package'
+
+output = Array.new
+
+Dir.glob('../packages/*.rb').each do |filename|
+  pkg = Package.load_package(filename)
+  output << {name: File.basename(filename, '.rb'), description: pkg.description, homepage: pkg.homepage, version: pkg.version, license: pkg.license, compatibility: pkg.compatibility}
+end
+
+File.write('repology.json', JSON.generate(output))