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module InlineSvg
class WebpackAssetFinder
def self.find_asset(filename)
new(filename)
end
def initialize(filename)
@filename = filename
manifest_lookup = asset_helper.manifest.lookup(@filename)
@asset_path = manifest_lookup.present? ? URI(manifest_lookup).path : ""
end
def pathname
return if @asset_path.blank?
if asset_helper.dev_server.running?
dev_server_asset(@asset_path)
elsif asset_helper.config.public_path.present?
File.join(asset_helper.config.public_path, @asset_path)
end
end
private
def asset_helper
@asset_helper ||=
if defined?(::Shakapacker)
::Shakapacker
else
::Webpacker
end
end
def dev_server_asset(file_path)
asset = fetch_from_dev_server(file_path)
begin
Tempfile.new(file_path).tap do |file|
file.binmode
file.write(asset)
file.rewind
end
rescue StandardError => e
Rails.logger.error "[inline_svg] Error creating tempfile for #{@filename}: #{e}"
raise
end
end
def fetch_from_dev_server(file_path)
http = Net::HTTP.new(asset_helper.dev_server.host, asset_helper.dev_server.port)
http.use_ssl = asset_helper.dev_server.protocol == "https"
http.verify_mode = OpenSSL::SSL::VERIFY_NONE
http.request(Net::HTTP::Get.new(file_path)).body
rescue StandardError => e
Rails.logger.error "[inline_svg] Error fetching #{@filename} from webpack-dev-server: #{e}"
raise
end
end
end
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