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author | drbrain <drbrain@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2011-06-23 22:11:55 +0000 |
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committer | drbrain <drbrain@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2011-06-23 22:11:55 +0000 |
commit | d001539a0538cba0e48be2ebdafe29e67b006a4e (patch) | |
tree | abf1591ca3b56f04f46cc2cce9918700620a3ab1 /lib/rake/file_utils.rb | |
parent | 3fbc9440feb66cf762834b6d66e6f3a893bab5b7 (diff) | |
download | ruby-d001539a0538cba0e48be2ebdafe29e67b006a4e.tar.gz |
* lib/rake: Import Rake 0.9.2
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@32217 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'lib/rake/file_utils.rb')
-rw-r--r-- | lib/rake/file_utils.rb | 112 |
1 files changed, 112 insertions, 0 deletions
diff --git a/lib/rake/file_utils.rb b/lib/rake/file_utils.rb new file mode 100644 index 0000000000..9e0198e644 --- /dev/null +++ b/lib/rake/file_utils.rb @@ -0,0 +1,112 @@ +require 'rbconfig' +require 'fileutils' + +# ########################################################################### +# This a FileUtils extension that defines several additional commands to be +# added to the FileUtils utility functions. +# +module FileUtils + # Path to the currently running Ruby program + RUBY = File.join( + RbConfig::CONFIG['bindir'], + RbConfig::CONFIG['ruby_install_name'] + RbConfig::CONFIG['EXEEXT']). + sub(/.*\s.*/m, '"\&"') + + OPT_TABLE['sh'] = %w(noop verbose) + OPT_TABLE['ruby'] = %w(noop verbose) + + # Run the system command +cmd+. If multiple arguments are given the command + # is not run with the shell (same semantics as Kernel::exec and + # Kernel::system). + # + # Example: + # sh %{ls -ltr} + # + # sh 'ls', 'file with spaces' + # + # # check exit status after command runs + # sh %{grep pattern file} do |ok, res| + # if ! ok + # puts "pattern not found (status = #{res.exitstatus})" + # end + # end + # + def sh(*cmd, &block) + options = (Hash === cmd.last) ? cmd.pop : {} + shell_runner = block_given? ? block : create_shell_runner(cmd) + set_verbose_option(options) + options[:noop] ||= Rake::FileUtilsExt.nowrite_flag + Rake.rake_check_options options, :noop, :verbose + Rake.rake_output_message cmd.join(" ") if options[:verbose] + unless options[:noop] + res = rake_system(*cmd) + status = $? + status = PseudoStatus.new(1) if !res && status.nil? + shell_runner.call(res, status) + end + end + + def create_shell_runner(cmd) + show_command = cmd.join(" ") + show_command = show_command[0,42] + "..." unless $trace + lambda { |ok, status| + ok or fail "Command failed with status (#{status.exitstatus}): [#{show_command}]" + } + end + private :create_shell_runner + + def set_verbose_option(options) + if options[:verbose].nil? + options[:verbose] = Rake::FileUtilsExt.verbose_flag.nil? || Rake::FileUtilsExt.verbose_flag + end + end + private :set_verbose_option + + def rake_system(*cmd) + Rake::AltSystem.system(*cmd) + end + private :rake_system + + # Run a Ruby interpreter with the given arguments. + # + # Example: + # ruby %{-pe '$_.upcase!' <README} + # + def ruby(*args,&block) + options = (Hash === args.last) ? args.pop : {} + if args.length > 1 then + sh(*([RUBY] + args + [options]), &block) + else + sh("#{RUBY} #{args.first}", options, &block) + end + end + + LN_SUPPORTED = [true] + + # Attempt to do a normal file link, but fall back to a copy if the link + # fails. + def safe_ln(*args) + unless LN_SUPPORTED[0] + cp(*args) + else + begin + ln(*args) + rescue StandardError, NotImplementedError + LN_SUPPORTED[0] = false + cp(*args) + end + end + end + + # Split a file path into individual directory names. + # + # Example: + # split_all("a/b/c") => ['a', 'b', 'c'] + # + def split_all(path) + head, tail = File.split(path) + return [tail] if head == '.' || tail == '/' + return [head, tail] if head == '/' + return split_all(head) + [tail] + end +end |