Automate update version list periodically

.github/UpdateVersionList.cr

@@ -0,0 +1,39 @@
+require "http/client"
+require "json"
+require "option_parser"
+
+def fetchVersionList
+  response = HTTP::Client.get "https://github.com/version-fox/vfox-clang/releases/manifest"
+  versionJson = response.body.match!(/<code>([\s\S]+)<\/code>/)[1]
+  versionList = Hash(String, Array(String)).from_json versionJson
+end
+
+output = "manifest.md"
+
+OptionParser.parse do |parser|
+  parser.banner = "Usage: #{Path[Process.executable_path.not_nil!].stem} [options]"
+  parser.on("-o PATH", "--output PATH", "Specify the output path") { |path| output = path }
+  parser.on("-h", "--help", "Show this help") do
+    puts parser
+    exit
+  end
+  parser.invalid_option do |flag|
+    STDERR.puts "ERROR: #{flag} is not a valid option."
+    STDERR.puts parser
+    exit(1)
+  end
+end
+
+vlist = fetchVersionList
+resp = HTTP::Client.get "https://anaconda.org/conda-forge/clang/labels"
+latestClangVersion = resp.body.match!(/\d\d\.\d\.\d/)[0]
+
+if vlist["conda-forge"][0] != latestClangVersion
+  vlist["conda-forge"].unshift(latestClangVersion)
+  puts "Clang has an updated version: #{latestClangVersion}"
+  File.open(output, "a") do |file|
+    file.puts "```"
+    file.puts vlist.to_pretty_json(indent = "    ")
+    file.puts "```"
+  end
+end

.github/workflows/Update version list.yml

@@ -0,0 +1,40 @@
+name: Check Updates Periodically
+
+on:
+  schedule:
+    - cron: "0 16 * * 1,4"
+  push:
+    branches: ["main"]
+
+jobs:
+  update-version-list:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Download source
+        uses: actions/checkout@v4
+
+      - name: Check updates
+        id: check_updates
+        run: |
+          chmod +x ./.github/UpdateVersionList
+          ./.github/UpdateVersionList -o manifest.md
+          if [ -s manifest.md ]; then
+            HAS_UPDATES=true
+            echo "Updates found"
+          else
+            HAS_UPDATES=false
+            echo "Already up to date"
+          fi
+          echo "HAS_UPDATES=$HAS_UPDATES" >> $GITHUB_OUTPUT
+
+      - name: Update manifest body
+        if: ${{ steps.check_updates.outputs.HAS_UPDATES == 'true' }}
+        uses: ncipollo/release-action@v1
+        with:
+          name: "manifest"
+          tag: "manifest"
+          allowUpdates: true
+          bodyFile: "manifest.md"
+          omitNameDuringUpdate: true
+          omitPrereleaseDuringUpdate: true