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Versions: 52
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Stored size: 1.46 KB
Contents
# frozen_string_literal: true
require 'eac_ruby_utils/core_ext'
require 'eac_ruby_utils/yaml'
require 'fileutils'
module EacFs
class StorageTree
CONTENT_FILE_NAME = '__content__'
attr_reader :path
def initialize(*path_parts)
raise ArgumentError, "\"#{path_parts}\" is empty" if path_parts.empty?
@path = ::File.expand_path(::File.join(*path_parts.map(&:to_s)))
end
def clear
return unless stored?
::File.unlink(content_path)
end
def read
return nil unless stored?
::File.read(content_path)
end
def read_or_store
write(yield) unless stored?
read
end
# @return [Object]
def read_or_store_yaml(use_cache = true)
write_yaml(yield) unless stored? && use_cache
read_yaml
end
# @return [Object, nil]
def read_yaml
r = read
r.nil? ? nil : ::EacRubyUtils::Yaml.load(r)
end
def write(value)
assert_directory_on_path
::File.write(content_path, value)
value
end
def write_yaml(object)
write(::EacRubyUtils::Yaml.dump(object))
object
end
def child(*child_path_parts)
self.class.new(path, *child_path_parts)
end
def stored?
::File.exist?(content_path)
end
def content_path
::File.join(path, CONTENT_FILE_NAME)
end
private
def assert_directory_on_path
raise "#{path} is a file" if ::File.file?(path)
::FileUtils.mkdir_p(path)
end
end
end
Version data entries
52 entries across 52 versions & 2 rubygems