Add a script to update to the newest Hugo and Pagefind versions

This simplifies keeping the site up to date with the latest releases.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>

Author: dscho

script/update-hugo-and-pagefind-version.rb

@@ -0,0 +1,62 @@
+#!/usr/bin/env ruby
+
+require "logger"
+require "octokit"
+require "yaml"
+
+$logger = Logger.new($stderr)
+
+class ReleaseVersionUpdater
+  REPOSITORIES = {
+    "hugo_version" => "gohugoio/hugo",
+    "pagefind_version" => "Pagefind/pagefind"
+  }.freeze
+
+  class << self
+    def update(params)
+      REPOSITORIES.each do |key, repository|
+        update_param(params, key, repository)
+      end
+    end
+
+    private
+
+    def update_param(params, key, repository)
+      current = params[key]
+      latest = begin
+        release = octokit.latest_release(repository)
+        tag_or_name = release && (release.tag_name || release.name)
+        tag_or_name && tag_or_name.to_s.sub(/^v/, "")
+      rescue Octokit::NotFound
+        $logger.warn("Repository #{repository} not found")
+        nil
+      rescue StandardError => e
+        $logger.error("Failed to fetch releases for #{repository}: #{e.class} - #{e.message}")
+        nil
+      end
+
+      if latest.nil?
+        $logger.warn("No release found for #{repository}; keeping #{current.inspect}")
+        return
+      end
+
+      if current.to_s == latest.to_s
+        $logger.info("#{key} already at #{current}")
+        return
+      end
+
+      params[key] = latest
+      $logger.info("Updated #{key} to #{latest}")
+    end
+
+    def octokit
+      @octokit ||= Octokit::Client.new(access_token: ENV.fetch("GITHUB_API_TOKEN", nil))
+    end
+  end
+end
+
+config = YAML.load_file("hugo.yml")
+config["params"] ||= {}
+ReleaseVersionUpdater.update(config["params"])
+yaml = YAML.dump(config).gsub(/ *$/, "")
+File.write("hugo.yml", yaml)