/
dir.rb
185 lines (153 loc) · 4.01 KB
/
dir.rb
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module FakeFS
class Dir
include Enumerable
def self._check_for_valid_file(path)
raise Errno::ENOENT, "No such file or directory - #{path}" unless FileSystem.find(path)
end
def initialize(string)
self.class._check_for_valid_file(string)
@path = string
@open = true
@pointer = 0
@contents = [ '.', '..', ] + FileSystem.find(@path).entries
end
def close
@open = false
@pointer = nil
@contents = nil
nil
end
def each(&block)
while f = read
yield f
end
end
def path
@path
end
def pos
@pointer
end
def pos=(integer)
@pointer = integer
end
def read
raise IOError, "closed directory" if @pointer == nil
n = @contents[@pointer]
@pointer += 1
n.to_s.gsub(path + '/', '') if n
end
def rewind
@pointer = 0
end
def seek(integer)
raise IOError, "closed directory" if @pointer == nil
@pointer = integer
@contents[integer]
end
def self.[](*pattern)
glob pattern
end
def self.exists?(path)
File.exists?(path) && File.directory?(path)
end
def self.chdir(dir, &blk)
FileSystem.chdir(dir, &blk)
end
def self.chroot(string)
raise NotImplementedError
end
def self.delete(string)
_check_for_valid_file(string)
raise Errno::ENOTEMPTY, "Directory not empty - #{string}" unless FileSystem.find(string).empty?
FileSystem.delete(string)
end
def self.entries(dirname)
_check_for_valid_file(dirname)
Dir.new(dirname).map { |file| File.basename(file) }
end
def self.foreach(dirname, &block)
Dir.open(dirname) { |file| yield file }
end
def self.glob(pattern, flags = 0, &block)
matches_for_pattern = lambda do |matcher|
[FileSystem.find(matcher) || []].flatten.map{|e|
Dir.pwd.match(%r[\A/?\z]) || !e.to_s.match(%r[\A#{Dir.pwd}/?]) ? e.to_s : e.to_s.match(%r[\A#{Dir.pwd}/?]).post_match}.sort
end
if pattern.is_a? Array
files = pattern.collect { |matcher| matches_for_pattern.call matcher }.flatten
else
files = matches_for_pattern.call pattern
end
return block_given? ? files.each { |file| block.call(file) } : files
end
if RUBY_VERSION >= "1.9"
def self.home(user = nil)
RealDir.home(user)
end
end
def self.mkdir(string, integer = 0)
FileUtils.mkdir(string)
end
def self.open(string, &block)
if block_given?
Dir.new(string).each { |file| yield(file) }
else
Dir.new(string)
end
end
def self.tmpdir
'/tmp'
end
def self.pwd
FileSystem.current_dir.to_s
end
# This code has been borrowed from Rubinius
def self.mktmpdir(prefix_suffix = nil, tmpdir = nil)
case prefix_suffix
when nil
prefix = "d"
suffix = ""
when String
prefix = prefix_suffix
suffix = ""
when Array
prefix = prefix_suffix[0]
suffix = prefix_suffix[1]
else
raise ArgumentError, "unexpected prefix_suffix: #{prefix_suffix.inspect}"
end
t = Time.now.strftime("%Y%m%d")
n = nil
begin
path = "#{tmpdir}/#{prefix}#{t}-#{$$}-#{rand(0x100000000).to_s(36)}"
path << "-#{n}" if n
path << suffix
mkdir(path, 0700)
rescue Errno::EEXIST
n ||= 0
n += 1
retry
end
if block_given?
begin
yield path
ensure
require 'fileutils'
# This here was using FileUtils.remove_entry_secure instead of just
# .rm_r. However, the security concerns that apply to
# .rm_r/.remove_entry_secure shouldn't apply to a test fake
# filesystem. :^)
FileUtils.rm_r path
end
else
path
end
end
class << self
alias_method :getwd, :pwd
alias_method :rmdir, :delete
alias_method :unlink, :delete
end
end
end