diff options
Diffstat (limited to 'lib/bundler/vendor/tmpdir/lib/tmpdir.rb')
| -rw-r--r-- | lib/bundler/vendor/tmpdir/lib/tmpdir.rb | 154 |
1 files changed, 154 insertions, 0 deletions
diff --git a/lib/bundler/vendor/tmpdir/lib/tmpdir.rb b/lib/bundler/vendor/tmpdir/lib/tmpdir.rb new file mode 100644 index 0000000000..a00496687c --- /dev/null +++ b/lib/bundler/vendor/tmpdir/lib/tmpdir.rb @@ -0,0 +1,154 @@ +# frozen_string_literal: true +# +# tmpdir - retrieve temporary directory path +# +# $Id$ +# + +require_relative '../../fileutils/lib/fileutils' +begin + require 'etc.so' +rescue LoadError # rescue LoadError for miniruby +end + +class Bundler::Dir < Dir + + @systmpdir ||= defined?(Etc.systmpdir) ? Etc.systmpdir : '/tmp' + + ## + # Returns the operating system's temporary file path. + + def self.tmpdir + tmp = nil + ['TMPDIR', 'TMP', 'TEMP', ['system temporary path', @systmpdir], ['/tmp']*2, ['.']*2].each do |name, dir = ENV[name]| + next if !dir + dir = File.expand_path(dir) + stat = File.stat(dir) rescue next + case + when !stat.directory? + warn "#{name} is not a directory: #{dir}" + when !stat.writable? + warn "#{name} is not writable: #{dir}" + when stat.world_writable? && !stat.sticky? + warn "#{name} is world-writable: #{dir}" + else + tmp = dir + break + end + end + raise ArgumentError, "could not find a temporary directory" unless tmp + tmp + end + + # Bundler::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. + # + # Bundler::Dir.mktmpdir {|dir| dir is ".../d..." } + # Bundler::Dir.mktmpdir("foo") {|dir| dir is ".../foo..." } + # Bundler::Dir.mktmpdir(["foo", "bar"]) {|dir| dir is ".../foo...bar" } + # + # The directory is created under Bundler::Dir.tmpdir or + # the optional second argument <i>tmpdir</i> if non-nil value is given. + # + # Bundler::Dir.mktmpdir {|dir| dir is "#{Bundler::Dir.tmpdir}/d..." } + # Bundler::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 Bundler::FileUtils.remove_entry before Bundler::Dir.mktmpdir returns. + # The value of the block is returned. + # + # Bundler::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, Bundler::Dir.mktmpdir doesn't remove the directory. + # + # dir = Bundler::Dir.mktmpdir + # begin + # # use the directory... + # open("#{dir}/foo", "w") { ... } + # ensure + # # remove the directory. + # Bundler::FileUtils.remove_entry dir + # end + # + def self.mktmpdir(prefix_suffix=nil, *rest, **options) + base = nil + path = Tmpname.create(prefix_suffix || "d", *rest, **options) {|p, _, _, d| + base = d + mkdir(p, 0700) + } + if block_given? + begin + yield path.dup + ensure + unless base + stat = File.stat(File.dirname(path)) + if stat.world_writable? and !stat.sticky? + raise ArgumentError, "parent directory is world writable but not sticky" + end + end + Bundler::FileUtils.remove_entry path + end + else + path + end + end + + module Tmpname # :nodoc: + module_function + + def tmpdir + Bundler::Dir.tmpdir + end + + UNUSABLE_CHARS = [File::SEPARATOR, File::ALT_SEPARATOR, File::PATH_SEPARATOR, ":"].uniq.join("").freeze + + class << (RANDOM = Random.new) + MAX = 36**6 # < 0x100000000 + def next + rand(MAX).to_s(36) + end + end + private_constant :RANDOM + + def create(basename, tmpdir=nil, max_try: nil, **opts) + origdir = tmpdir + tmpdir ||= tmpdir() + n = nil + prefix, suffix = basename + prefix = (String.try_convert(prefix) or + raise ArgumentError, "unexpected prefix: #{prefix.inspect}") + prefix = prefix.delete(UNUSABLE_CHARS) + suffix &&= (String.try_convert(suffix) or + raise ArgumentError, "unexpected suffix: #{suffix.inspect}") + suffix &&= suffix.delete(UNUSABLE_CHARS) + begin + t = Time.now.strftime("%Y%m%d") + path = "#{prefix}#{t}-#{$$}-#{RANDOM.next}"\ + "#{n ? %[-#{n}] : ''}#{suffix||''}" + path = File.join(tmpdir, path) + yield(path, n, opts, origdir) + 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 |