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# frozen_string_literal: true
module ActiveStorage
class Downloader
def initialize(blob)
@blob = blob
end
def download_blob_to_tempfile
open_tempfile do |file|
download_blob_to file
yield file
end
end
private
attr_reader :blob
def open_tempfile
file = Tempfile.open([ "ActiveStorage", tempfile_extension_with_delimiter ])
begin
yield file
ensure
file.close!
end
end
def download_blob_to(file)
file.binmode
blob.download { |chunk| file.write(chunk) }
file.flush
file.rewind
end
def tempfile_extension_with_delimiter
blob.filename.extension_with_delimiter
end
end
end
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