Version assets

version_assets.rb

@@ -0,0 +1,27 @@
+# get index.css, index.js
+# generate hash
+# rename files
+# write asset manifest
+
+require "securerandom"
+require "json"
+require "fileutils"
+
+folder_path = File.join(__dir__, "/public/assets")
+dist_path = File.join(__dir__, "/public/assets/dist")
+hash = SecureRandom.urlsafe_base64(9)
+filenames = {}
+
+FileUtils.rm_rf("#{dist_path}/.", secure: true)
+
+Dir.glob(folder_path + "/*.{js,css}").each do |f|
+  FileUtils.cp(f, dist_path)
+end
+
+Dir.glob(dist_path + "/*.{js,css}").each_with_object(filenames) do |f, memo|
+  filename = File.basename(f, File.extname(f))
+  memo[filename + File.extname(f)] = filename + "-" + hash + File.extname(f)
+  File.rename(f, dist_path + "/" + filename + "-" + hash + File.extname(f))
+end
+
+File.open(folder_path + "/asset-manifest.json", "wb") {|f| f.write(JSON.generate(filenames)) }