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@@ -205,27 +205,30 @@ class App < Sinatra::Application
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].compact
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end
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+ # Returns a cache name for the service worker to use which changes if any of the assets changes
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+ # When a manifest exist, this name is only created once based on the asset manifest because it never changes without a server restart
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+ # If a manifest does not exist, it is created every time this method is called because the assets can change while the server is running
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def service_worker_cache_name
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- # Returns the digest of the last modified asset
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- # When a manifest exist, this digest is only calculated once based on the asset manifest because it never changes without a server restart
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- # If a manifest does not exist, it is calculated every time this method is called because the assets can change while the server is running
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if File.exist?(App.assets_manifest_path)
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- return @@service_worker_cache_name ||=
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- Sprockets::Manifest
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- .new(nil, App.assets_manifest_path)
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- .files
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- .values
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- .sort_by {|file| file["mtime"]}
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- .reverse
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- .first["digest"]
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+ if defined?(@@service_worker_cache_name)
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+ return @@service_worker_cache_name
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+ end
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+
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+ digest = Sprockets::Manifest
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+ .new(nil, App.assets_manifest_path)
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+ .files
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+ .values
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+ .map {|file| file["digest"]}
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+ .join
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+
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+ return @@service_worker_cache_name ||= Digest::MD5.hexdigest(digest)
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else
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- last_modified_file = App.sprockets
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+ paths = App.sprockets
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.each_file
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.to_a
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.reject {|file| file.start_with?(App.docs_path)}
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- .max_by {|file| File.mtime(file)}
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- return App.sprockets.pack_base64digest(App.sprockets.file_digest(last_modified_file))
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+ return App.sprockets.pack_hexdigest(App.sprockets.files_digest(paths))
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end
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end
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Jasper van Merle