Module: FileUtils

### Home Classes Methods

### In Files

- lib/rake/file_utils.rb

### Methods

- #ruby
- #safe_ln
- #sh
- #split_all

### Files

- MIT-LICENSE
- README.rdoc
- TODO
- command_line_usage.rdoc
- glossary.rdoc
- proto_rake.rdoc
- rakefile.rdoc
- rational.rdoc
- rake-0.4.14.rdoc
- rake-0.4.15.rdoc
- rake-0.5.0.rdoc
- rake-0.5.3.rdoc
- rake-0.5.4.rdoc
- rake-0.6.0.rdoc
- rake-0.7.0.rdoc
- rake-0.7.1.rdoc
- rake-0.7.2.rdoc
- rake-0.7.3.rdoc
- rake-0.8.0.rdoc
- rake-0.8.4.rdoc
- rake-0.8.5.rdoc
- rake-0.8.6.rdoc
- rake-0.8.7.rdoc

### Class/Module Index

Quicksearch

- Rake
- Rake::AltSystem
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- Rake::Cloneable
- Rake::CompositePublisher
- Rake::DSL
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- Rake::FileCreationTask
- Rake::FileList
- Rake::FileTask
- Rake::FileUtilsExt
- Rake::FtpFile
- Rake::FtpUploader
- Rake::InvocationChain
- Rake::InvocationChain::EmptyInvocationChain
- Rake::InvocationExceptionMixin
- Rake::MakefileLoader
- Rake::MultiTask
- Rake::NameSpace
- Rake::PackageTask
- Rake::PseudoStatus
- Rake::RubyForgePublisher
- Rake::RuleRecursionOverflowError
- Rake::SshDirPublisher
- Rake::SshFilePublisher
- Rake::SshFreshDirPublisher
- Rake::Task
- Rake::TaskArgumentError
- Rake::TaskArguments
- Rake::TaskLib
- Rake::TaskManager
- Rake::TestTask
- Rake::TraceOutput
- Rake::Win32
- Rake::Win32::Win32HomeError
- CompositePublisher
- FileUtils
- Module
- Object
- SshDirPublisher
- SshFilePublisher
- SshFreshDirPublisher
- String
- Time

No matching classes.

# FileUtils

### Constants

LN_SUPPORTED
RUBY

  Path to the currently running Ruby program

### Public Instance Methods

ruby(*args,&block) click to toggle source

Run a Ruby interpreter with the given arguments.

Example:

    ruby %{-pe '$_.upcase!' <README}

    # File lib/rake/file_utils.rb, line 77
    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

safe_ln(*args) click to toggle source

Attempt to do a normal file link, but fall back to a copy if the link fails.

    # File lib/rake/file_utils.rb, line 90
    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

sh(*cmd, &block) click to toggle source

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

    # File lib/rake/file_utils.rb, line 33
    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 = Rake::PseudoStatus.new(1) if !res && status.nil?
        shell_runner.call(res, status)
      end
    end

split_all(path) click to toggle source

Split a file path into individual directory names.

Example:

    split_all("a/b/c") =>  ['a', 'b', 'c']

    # File lib/rake/file_utils.rb, line 108
    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

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