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require 'fileutils'
module VCR
class Cassette
class Persisters
# The only built-in cassette persister. Persists cassettes to the file system.
module FileSystem
extend self
# @private
attr_reader :storage_location
# @private
def storage_location=(dir)
FileUtils.mkdir_p(dir) if dir
@storage_location = dir ? absolute_path_for(dir) : nil
end
# Gets the cassette for the given storage key (file name).
#
# @param [String] file_name the file name
# @return [String] the cassette content
def [](file_name)
path = absolute_path_to_file(file_name)
return nil unless File.exist?(path)
File.binread(path)
end
# Sets the cassette for the given storage key (file name).
#
# @param [String] file_name the file name
# @param [String] content the content to store
def []=(file_name, content)
path = absolute_path_to_file(file_name)
directory = File.dirname(path)
FileUtils.mkdir_p(directory) unless File.exist?(directory)
File.binwrite(path, content)
end
# @private
def absolute_path_to_file(file_name)
return nil unless storage_location
File.join(storage_location, sanitized_file_name_from(file_name))
end
private
def absolute_path_for(path)
Dir.chdir(path) { Dir.pwd }
end
def sanitized_file_name_from(file_name)
parts = file_name.to_s.split('.')
if parts.size > 1 && !parts.last.include?(File::SEPARATOR)
file_extension = '.' + parts.pop
end
parts.join('.').gsub(/[^[:word:]\-\/]+/, '_') + file_extension.to_s
end
end
end
end
end
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