diff options
Diffstat (limited to 'lib/tmpdir.rb')
| -rw-r--r-- | lib/tmpdir.rb | 31 |
1 files changed, 23 insertions, 8 deletions
diff --git a/lib/tmpdir.rb b/lib/tmpdir.rb index 55920a4a74..fe3e0e19d1 100644 --- a/lib/tmpdir.rb +++ b/lib/tmpdir.rb @@ -13,15 +13,23 @@ end class Dir - @@systmpdir ||= defined?(Etc.systmpdir) ? Etc.systmpdir : '/tmp' + # Class variables are inaccessible from non-main Ractor. + # And instance variables too, in Ruby 3.0. + + # System-wide temporary directory path + SYSTMPDIR = (defined?(Etc.systmpdir) ? Etc.systmpdir.freeze : '/tmp') + private_constant :SYSTMPDIR ## # Returns the operating system's temporary file path. + # + # require 'tmpdir' + # Dir.tmpdir # => "/tmp" def self.tmpdir - ['TMPDIR', 'TMP', 'TEMP', ['system temporary path', @@systmpdir], ['/tmp']*2, ['.']*2].find do |name, dir| + ['TMPDIR', 'TMP', 'TEMP', ['system temporary path', SYSTMPDIR], ['/tmp']*2, ['.']*2].find do |name, dir| unless dir - next if !(dir = ENV[name]) or dir.empty? + next if !(dir = ENV[name] rescue next) or dir.empty? end dir = File.expand_path(dir) stat = File.stat(dir) rescue next @@ -40,6 +48,11 @@ class Dir # Dir.mktmpdir creates a temporary directory. # + # require 'tmpdir' + # Dir.mktmpdir {|dir| + # # use the directory + # } + # # The directory is created with 0700 permission. # Application should not change the permission to make the temporary directory accessible from other users. # @@ -94,9 +107,10 @@ class Dir yield path.dup ensure unless base - stat = File.stat(File.dirname(path)) + base = File.dirname(path) + stat = File.stat(base) if stat.world_writable? and !stat.sticky? - raise ArgumentError, "parent directory is world writable but not sticky" + raise ArgumentError, "parent directory is world writable but not sticky: #{base}" end end FileUtils.remove_entry path @@ -118,16 +132,17 @@ class Dir UNUSABLE_CHARS = "^,-.0-9A-Z_a-z~" # Dedicated random number generator - RANDOM = Random.new + RANDOM = Object.new class << RANDOM # :nodoc: # Maximum random number MAX = 36**6 # < 0x100000000 # Returns new random string upto 6 bytes def next - rand(MAX).to_s(36) + (::Random.urandom(4).unpack1("L")%MAX).to_s(36) end end + RANDOM.freeze private_constant :RANDOM # Generates and yields random names to create a temporary name @@ -152,7 +167,7 @@ class Dir n ||= 0 n += 1 retry if !max_try or n < max_try - raise "cannot generate temporary name using `#{basename}' under `#{tmpdir}'" + raise "cannot generate temporary name using '#{basename}' under '#{tmpdir}'" end path end |