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|
#
# tmpdir - retrieve temporary directory path
#
# $Id$
#
require 'fileutils'
class Dir
@@systmpdir = '/tmp'
begin
require 'Win32API'
CSIDL_LOCAL_APPDATA = 0x001c
max_pathlen = 260
windir = "\0"*(max_pathlen+1)
begin
getdir = Win32API.new('shell32', 'SHGetFolderPath', 'LLLLP', 'L')
raise RuntimeError if getdir.call(0, CSIDL_LOCAL_APPDATA, 0, 0, windir) != 0
windir.rstrip!
rescue RuntimeError
begin
getdir = Win32API.new('kernel32', 'GetSystemWindowsDirectory', 'PL', 'L')
rescue RuntimeError
getdir = Win32API.new('kernel32', 'GetWindowsDirectory', 'PL', 'L')
end
windir[getdir.call(windir, windir.size)..-1] = ""
end
temp = File.expand_path('temp', windir.untaint)
@@systmpdir = temp if File.directory?(temp) and File.writable?(temp)
rescue LoadError
end
##
# Returns the operating system's temporary file path.
def Dir::tmpdir
tmp = '.'
if $SAFE > 0
tmp = @@systmpdir
else
for dir in [ENV['TMPDIR'], ENV['TMP'], ENV['TEMP'],
ENV['USERPROFILE'], @@systmpdir, '/tmp']
if dir and File.directory?(dir) and File.writable?(dir)
tmp = dir
break
end
end
File.expand_path(tmp)
end
end
# Dir.mktmpdir creates a temporary directory.
#
# The directory is created with 0700 permission.
#
# The prefix and suffix of the name of the directory is specified by
# the optional first argument, <i>prefix_suffix</i>.
# - If it is not specified or nil, "d" is used as the prefix and no suffix is used.
# - If it is a string, it is used as the prefix and no suffix is used.
# - If it is an array, first element is used as the prefix and second element is used as a suffix.
#
# Dir.mktmpdir {|dir| dir is ".../d..." }
# Dir.mktmpdir("foo") {|dir| dir is ".../foo..." }
# Dir.mktmpdir(["foo", "bar"]) {|dir| dir is ".../foo...bar" }
#
# The directory is created under Dir.tmpdir or
# the optional second argument <i>tmpdir</i> if non-nil value is given.
#
# Dir.mktmpdir {|dir| dir is "#{Dir.tmpdir}/d..." }
# Dir.mktmpdir(nil, "/var/tmp") {|dir| dir is "/var/tmp/d..." }
#
# If a block is given,
# it is yielded with the path of the directory.
# The directory and its contents are removed
# using FileUtils.remove_entry_secure before Dir.mktmpdir returns.
# The value of the block is returned.
#
# Dir.mktmpdir {|dir|
# # use the directory...
# open("#{dir}/foo", "w") { ... }
# }
#
# If a block is not given,
# The path of the directory is returned.
# In this case, Dir.mktmpdir doesn't remove the directory.
#
# dir = Dir.mktmpdir
# begin
# # use the directory...
# open("#{dir}/foo", "w") { ... }
# ensure
# # remove the directory.
# FileUtils.remove_entry_secure dir
# end
#
def Dir.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
tmpdir ||= Dir.tmpdir
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
Dir.mkdir(path, 0700)
rescue Errno::EEXIST
n ||= 0
n += 1
retry
end
if block_given?
begin
yield path
ensure
FileUtils.remove_entry_secure path
end
else
path
end
end
end
|
