diff options
author | usa <usa@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2017-12-14 15:09:35 +0000 |
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committer | usa <usa@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2017-12-14 15:09:35 +0000 |
commit | 1a74fa4b04da04bd2bb33103dd3cf431438df38e (patch) | |
tree | f4a1d6c2961339e0c1d653c0f8427a53315080f0 /ruby_2_2/lib/tmpdir.rb | |
parent | a5b755e50e2d9aabf28ba24bf58644ca22b01a4f (diff) |
add tag v2_2_9
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/tags/v2_2_9@61257 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'ruby_2_2/lib/tmpdir.rb')
-rw-r--r-- | ruby_2_2/lib/tmpdir.rb | 139 |
1 files changed, 139 insertions, 0 deletions
diff --git a/ruby_2_2/lib/tmpdir.rb b/ruby_2_2/lib/tmpdir.rb new file mode 100644 index 0000000000..494725cb33 --- /dev/null +++ b/ruby_2_2/lib/tmpdir.rb @@ -0,0 +1,139 @@ +# +# tmpdir - retrieve temporary directory path +# +# $Id$ +# + +require 'fileutils' +begin + require 'etc.so' +rescue LoadError # rescue LoadError for miniruby +end + +class Dir + + @@systmpdir ||= defined?(Etc.systmpdir) ? Etc.systmpdir : '/tmp' + + ## + # Returns the operating system's temporary file path. + + def self.tmpdir + if $SAFE > 0 + @@systmpdir + else + tmp = nil + [ENV['TMPDIR'], ENV['TMP'], ENV['TEMP'], @@systmpdir, '/tmp', '.'].each do |dir| + next if !dir + dir = File.expand_path(dir) + if stat = File.stat(dir) and stat.directory? and stat.writable? and + (!stat.world_writable? or stat.sticky?) + tmp = dir + break + end rescue nil + end + raise ArgumentError, "could not find a temporary directory" unless tmp + tmp + end + end + + # Dir.mktmpdir creates a temporary directory. + # + # The directory is created with 0700 permission. + # Application should not change the permission to make the temporary directory accessible from other users. + # + # 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 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 dir + # end + # + def Dir.mktmpdir(prefix_suffix=nil, *rest) + path = Tmpname.create(prefix_suffix || "d", *rest) {|n| mkdir(n, 0700)} + if block_given? + begin + yield path + ensure + stat = File.stat(File.dirname(path)) + if stat.world_writable? and !stat.sticky? + raise ArgumentError, "parent directory is world writable but not sticky" + end + FileUtils.remove_entry path + end + else + path + end + end + + module Tmpname # :nodoc: + module_function + + def tmpdir + Dir.tmpdir + end + + def make_tmpname((prefix, suffix), n) + prefix = (String.try_convert(prefix) or + raise ArgumentError, "unexpected prefix: #{prefix.inspect}") + suffix &&= (String.try_convert(suffix) or + raise ArgumentError, "unexpected suffix: #{suffix.inspect}") + t = Time.now.strftime("%Y%m%d") + path = "#{prefix}#{t}-#{$$}-#{rand(0x100000000).to_s(36)}" + path << "-#{n}" if n + path << suffix if suffix + path + end + + def create(basename, tmpdir=nil, max_try: nil, **opts) + if $SAFE > 0 and tmpdir.tainted? + tmpdir = '/tmp' + else + tmpdir ||= tmpdir() + end + n = nil + begin + path = File.join(tmpdir, make_tmpname(basename, n)) + yield(path, n, opts) + rescue Errno::EEXIST + n ||= 0 + n += 1 + retry if !max_try or n < max_try + raise "cannot generate temporary name using `#{basename}' under `#{tmpdir}'" + end + path + end + end +end |