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Contents
# frozen_string_literal: true
require 'eac_fs/file_info'
module Avm
module FileFormats
class Utf8Assert
UTF8_CHARSET = 'utf-8'
UTF8_CHARSETS = [UTF8_CHARSET, 'us-ascii'].freeze
class << self
def assert_files(files)
asserters = files.map { |file| new(file) }
begin
asserters.each(&:assert)
yield
ensure
asserters.each(&:revert)
end
end
end
enable_simple_cache
common_constructor :path
def assert
return if original_utf8?
convert_self(original_charset, UTF8_CHARSET)
end
def revert
return if original_utf8?
convert_self(UTF8_CHARSET, original_charset)
end
private
def original_info_uncached
::EacFs::FileInfo.new(path)
end
def original_charset_uncached
return original_info.content_type.charset if original_info.content_type.charset.present?
raise 'No charset found'
rescue StandardError => e
raise "Unable to determine the charset of #{path} (#{e.message})"
end
def original_utf8?
UTF8_CHARSETS.include?(original_charset)
end
def convert_file(from_path, from_charset, to_path, to_charset)
File.open(from_path, "r:#{from_charset}") do |input|
File.open(to_path, "w:#{to_charset}") do |output|
output.write(input.read)
end
end
end
def convert_self(from_charset, to_charset)
temp = ::Tempfile.new
temp.close
convert_file(path, from_charset, temp.path, to_charset)
::FileUtils.mv(temp.path, path)
end
end
end
end
Version data entries
145 entries across 145 versions & 2 rubygems