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require 'ffi'
require 'ffi-xattr/version'
require 'ffi-xattr/error'
case RUBY_PLATFORM
when /linux/
require 'ffi-xattr/linux_lib'
when /darwin|bsd/
require 'ffi-xattr/darwin_lib'
when /mingw/
require 'ffi-xattr/windows_lib'
else
raise NotImplementedError, "ffi-xattr not supported on #{RUBY_PLATFORM}"
end
class Xattr
include Enumerable
# Create a new Xattr instance with path.
# Use <tt>:no_follow => true</tt> in options to work on symlink itself instead of following it.
def initialize(path, options = {})
@path =
if path.respond_to?(:to_path)
path.to_path
elsif path.respond_to?(:to_str)
path.to_str
else
path
end
raise Errno::ENOENT, @path unless File.exist?(@path)
@no_follow = !!options[:no_follow]
end
# List extended attribute names
def list
Lib.list @path, @no_follow
end
# Get an extended attribute value
def get(key)
Lib.get @path, @no_follow, key.to_s
end
alias_method :[], :get
# Set an extended attribute value
def set(key, value)
Lib.set @path, @no_follow, key.to_s, value.to_s
end
alias_method :[]=, :set
# Remove an extended attribute value
def remove(key)
Lib.remove @path, @no_follow, key.to_s
end
# Iterates over pairs of extended attribute names and values
def each(&blk)
list.each do |key|
yield key, get(key)
end
end
# Returns hash of extended attributes
def to_hash
res = {}
each { |k,v| res[k] = v }
res
end
alias_method :to_h, :to_hash
def as_json(*args)
to_hash
end
end
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