115 lines
3.0 KiB
Ruby
115 lines
3.0 KiB
Ruby
require 'rbconfig'
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require 'fileutils'
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#--
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# This a FileUtils extension that defines several additional commands to be
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# added to the FileUtils utility functions.
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module FileUtils
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# Path to the currently running Ruby program
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RUBY = File.join(
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RbConfig::CONFIG['bindir'],
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RbConfig::CONFIG['ruby_install_name'] + RbConfig::CONFIG['EXEEXT']).
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sub(/.*\s.*/m, '"\&"')
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OPT_TABLE['sh'] = %w(noop verbose)
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OPT_TABLE['ruby'] = %w(noop verbose)
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# Run the system command +cmd+. If multiple arguments are given the command
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# is not run with the shell (same semantics as Kernel::exec and
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# Kernel::system).
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#
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# Example:
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# sh %{ls -ltr}
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#
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# sh 'ls', 'file with spaces'
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#
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# # check exit status after command runs
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# sh %{grep pattern file} do |ok, res|
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# if ! ok
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# puts "pattern not found (status = #{res.exitstatus})"
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# end
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# end
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#
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def sh(*cmd, &block)
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options = (Hash === cmd.last) ? cmd.pop : {}
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shell_runner = block_given? ? block : create_shell_runner(cmd)
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set_verbose_option(options)
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options[:noop] ||= Rake::FileUtilsExt.nowrite_flag
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Rake.rake_check_options options, :noop, :verbose
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Rake.rake_output_message cmd.join(" ") if options[:verbose]
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unless options[:noop]
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res = rake_system(*cmd)
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status = $?
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status = PseudoStatus.new(1) if !res && status.nil?
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shell_runner.call(res, status)
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end
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end
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def create_shell_runner(cmd) # :nodoc:
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show_command = cmd.join(" ")
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show_command = show_command[0,42] + "..." unless $trace
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lambda { |ok, status|
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ok or fail "Command failed with status (#{status.exitstatus}): [#{show_command}]"
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}
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end
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private :create_shell_runner
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def set_verbose_option(options) # :nodoc:
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unless options.key? :verbose
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options[:verbose] =
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Rake::FileUtilsExt.verbose_flag == Rake::FileUtilsExt::DEFAULT ||
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Rake::FileUtilsExt.verbose_flag
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end
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end
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private :set_verbose_option
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def rake_system(*cmd) # :nodoc:
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Rake::AltSystem.system(*cmd)
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end
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private :rake_system
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# Run a Ruby interpreter with the given arguments.
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#
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# Example:
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# ruby %{-pe '$_.upcase!' <README}
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#
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def ruby(*args,&block)
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options = (Hash === args.last) ? args.pop : {}
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if args.length > 1 then
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sh(*([RUBY] + args + [options]), &block)
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else
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sh("#{RUBY} #{args.first}", options, &block)
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end
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end
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LN_SUPPORTED = [true]
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# Attempt to do a normal file link, but fall back to a copy if the link
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# fails.
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def safe_ln(*args)
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unless LN_SUPPORTED[0]
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cp(*args)
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else
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begin
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ln(*args)
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rescue StandardError, NotImplementedError
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LN_SUPPORTED[0] = false
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cp(*args)
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end
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end
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end
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# Split a file path into individual directory names.
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#
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# Example:
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# split_all("a/b/c") => ['a', 'b', 'c']
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#
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def split_all(path)
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head, tail = File.split(path)
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return [tail] if head == '.' || tail == '/'
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return [head, tail] if head == '/'
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return split_all(head) + [tail]
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end
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end
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