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1 files changed, 667 insertions, 0 deletions

diff --git a/jni/ruby/lib/shell/command-processor.rb b/jni/ruby/lib/shell/command-processor.rb
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+++ b/jni/ruby/lib/shell/command-processor.rb
@@ -0,0 +1,667 @@
+#
+#   shell/command-controller.rb -
+#       $Release Version: 0.7 $
+#       $Revision: 47246 $
+#       by Keiju ISHITSUKA(keiju@ruby-lang.org)
+#
+# --
+#
+#
+#
+
+require "e2mmap"
+require "thread"
+
+require "shell/error"
+require "shell/filter"
+require "shell/system-command"
+require "shell/builtin-command"
+
+class Shell
+  # In order to execute a command on your OS, you need to define it as a
+  # Shell method.
+  #
+  # Alternatively, you can execute any command via
+  # Shell::CommandProcessor#system even if it is not defined.
+  class CommandProcessor
+
+    #
+    # initialize of Shell and related classes.
+    #
+    m = [:initialize, :expand_path]
+    if Object.methods.first.kind_of?(String)
+      NoDelegateMethods = m.collect{|x| x.id2name}
+    else
+      NoDelegateMethods = m
+    end
+
+    def self.initialize
+
+      install_builtin_commands
+
+      # define CommandProcessor#methods to Shell#methods and Filter#methods
+      for m in CommandProcessor.instance_methods(false) - NoDelegateMethods
+        add_delegate_command_to_shell(m)
+      end
+
+      def self.method_added(id)
+        add_delegate_command_to_shell(id)
+      end
+    end
+
+    #
+    # include run file.
+    #
+    def self.run_config
+      begin
+        load File.expand_path("~/.rb_shell") if ENV.key?("HOME")
+      rescue LoadError, Errno::ENOENT
+      rescue
+        print "load error: #{rc}\n"
+        print $!.class, ": ", $!, "\n"
+        for err in $@[0, $@.size - 2]
+          print "\t", err, "\n"
+        end
+      end
+    end
+
+    def initialize(shell)
+      @shell = shell
+      @system_commands = {}
+    end
+
+    #
+    # CommandProcessor#expand_path(path)
+    #     path:   String
+    #     return: String
+    #   returns the absolute path for <path>
+    #
+    def expand_path(path)
+      @shell.expand_path(path)
+    end
+
+    # call-seq:
+    #   foreach(path, record_separator) -> Enumerator
+    #   foreach(path, record_separator) { block }
+    #
+    # See IO.foreach when +path+ is a file.
+    #
+    # See Dir.foreach when +path+ is a directory.
+    #
+    def foreach(path = nil, *rs)
+      path = "." unless path
+      path = expand_path(path)
+
+      if File.directory?(path)
+        Dir.foreach(path){|fn| yield fn}
+      else
+        IO.foreach(path, *rs){|l| yield l}
+      end
+    end
+
+    # call-seq:
+    #   open(path, mode, permissions) -> Enumerator
+    #   open(path, mode, permissions) { block }
+    #
+    # See IO.open when +path+ is a file.
+    #
+    # See Dir.open when +path+ is a directory.
+    #
+    def open(path, mode = nil, perm = 0666, &b)
+      path = expand_path(path)
+      if File.directory?(path)
+        Dir.open(path, &b)
+      else
+        if @shell.umask
+          f = File.open(path, mode, perm)
+          File.chmod(perm & ~@shell.umask, path)
+          if block_given?
+            f.each(&b)
+          end
+          f
+        else
+          File.open(path, mode, perm, &b)
+        end
+      end
+    end
+
+    # call-seq:
+    #   unlink(path)
+    #
+    # See IO.unlink when +path+ is a file.
+    #
+    # See Dir.unlink when +path+ is a directory.
+    #
+    def unlink(path)
+      @shell.check_point
+
+      path = expand_path(path)
+      if File.directory?(path)
+        Dir.unlink(path)
+      else
+        IO.unlink(path)
+      end
+      Void.new(@shell)
+    end
+
+    # See Shell::CommandProcessor#test
+    alias top_level_test test
+    # call-seq:
+    #   test(command, file1, file2) ->  true or false
+    #   [command, file1, file2] ->  true or false
+    #
+    # Tests if the given +command+ exists in +file1+, or optionally +file2+.
+    #
+    # Example:
+    #     sh[?e, "foo"]
+    #     sh[:e, "foo"]
+    #     sh["e", "foo"]
+    #     sh[:exists?, "foo"]
+    #     sh["exists?", "foo"]
+    #
+    def test(command, file1, file2=nil)
+      file1 = expand_path(file1)
+      file2 = expand_path(file2) if file2
+      command = command.id2name if command.kind_of?(Symbol)
+
+      case command
+      when Integer
+        if file2
+          top_level_test(command, file1, file2)
+        else
+          top_level_test(command, file1)
+        end
+      when String
+        if command.size == 1
+          if file2
+            top_level_test(command, file1, file2)
+          else
+            top_level_test(command, file1)
+          end
+        else
+          if file2
+            FileTest.send(command, file1, file2)
+          else
+            FileTest.send(command, file1)
+          end
+        end
+      end
+    end
+    # See Shell::CommandProcessor#test
+    alias [] test
+
+    # call-seq:
+    #   mkdir(path)
+    #
+    # Same as Dir.mkdir, except multiple directories are allowed.
+    def mkdir(*path)
+      @shell.check_point
+      notify("mkdir #{path.join(' ')}")
+
+      perm = nil
+      if path.last.kind_of?(Integer)
+        perm = path.pop
+      end
+      for dir in path
+        d = expand_path(dir)
+        if perm
+          Dir.mkdir(d, perm)
+        else
+          Dir.mkdir(d)
+        end
+        File.chmod(d, 0666 & ~@shell.umask) if @shell.umask
+      end
+      Void.new(@shell)
+    end
+
+    # call-seq:
+    #   rmdir(path)
+    #
+    # Same as Dir.rmdir, except multiple directories are allowed.
+    def rmdir(*path)
+      @shell.check_point
+      notify("rmdir #{path.join(' ')}")
+
+      for dir in path
+        Dir.rmdir(expand_path(dir))
+      end
+      Void.new(@shell)
+    end
+
+    # call-seq:
+    #   system(command, *options) -> SystemCommand
+    #
+    # Executes the given +command+ with the +options+ parameter.
+    #
+    # Example:
+    #     print sh.system("ls", "-l")
+    #     sh.system("ls", "-l") | sh.head > STDOUT
+    #
+    def system(command, *opts)
+      if opts.empty?
+        if command =~ /\*|\?|\{|\}|\[|\]|<|>|\(|\)|~|&|\||\\|\$|;|'|`|"|\n/
+          return SystemCommand.new(@shell, find_system_command("sh"), "-c", command)
+        else
+          command, *opts = command.split(/\s+/)
+        end
+      end
+      SystemCommand.new(@shell, find_system_command(command), *opts)
+    end
+
+    # call-seq:
+    #   rehash
+    #
+    # Clears the command hash table.
+    def rehash
+      @system_commands = {}
+    end
+
+    def check_point # :nodoc:
+      @shell.process_controller.wait_all_jobs_execution
+    end
+    alias finish_all_jobs check_point # :nodoc:
+
+    # call-seq:
+    #   transact { block }
+    #
+    # Executes a block as self
+    #
+    # Example:
+    #   sh.transact { system("ls", "-l") | head > STDOUT }
+    def transact(&block)
+      begin
+        @shell.instance_eval(&block)
+      ensure
+        check_point
+      end
+    end
+
+    # call-seq:
+    #   out(device) { block }
+    #
+    # Calls <code>device.print</code> on the result passing the _block_ to
+    # #transact
+    def out(dev = STDOUT, &block)
+      dev.print transact(&block)
+    end
+
+    # call-seq:
+    #   echo(*strings) ->  Echo
+    #
+    # Returns a Echo object, for the given +strings+
+    def echo(*strings)
+      Echo.new(@shell, *strings)
+    end
+
+    # call-seq:
+    #   cat(*filename) ->  Cat
+    #
+    # Returns a Cat object, for the given +filenames+
+    def cat(*filenames)
+      Cat.new(@shell, *filenames)
+    end
+
+    #   def sort(*filenames)
+    #     Sort.new(self, *filenames)
+    #   end
+    # call-seq:
+    #   glob(pattern) ->  Glob
+    #
+    # Returns a Glob filter object, with the given +pattern+ object
+    def glob(pattern)
+      Glob.new(@shell, pattern)
+    end
+
+    def append(to, filter)
+      case to
+      when String
+        AppendFile.new(@shell, to, filter)
+      when IO
+        AppendIO.new(@shell, to, filter)
+      else
+        Shell.Fail Error::CantApplyMethod, "append", to.class
+      end
+    end
+
+    # call-seq:
+    #   tee(file) ->  Tee
+    #
+    # Returns a Tee filter object, with the given +file+ command
+    def tee(file)
+      Tee.new(@shell, file)
+    end
+
+    # call-seq:
+    #   concat(*jobs) ->  Concat
+    #
+    # Returns a Concat object, for the given +jobs+
+    def concat(*jobs)
+      Concat.new(@shell, *jobs)
+    end
+
+    # %pwd, %cwd -> @pwd
+    def notify(*opts)
+      Shell.notify(*opts) {|mes|
+        yield mes if iterator?
+
+        mes.gsub!("%pwd", "#{@cwd}")
+        mes.gsub!("%cwd", "#{@cwd}")
+      }
+    end
+
+    #
+    # private functions
+    #
+    def find_system_command(command)
+      return command if /^\// =~ command
+      case path = @system_commands[command]
+      when String
+        if exists?(path)
+          return path
+        else
+          Shell.Fail Error::CommandNotFound, command
+        end
+      when false
+        Shell.Fail Error::CommandNotFound, command
+      end
+
+      for p in @shell.system_path
+        path = join(p, command)
+        begin
+          st = File.stat(path)
+        rescue SystemCallError
+          next
+        else
+          next unless st.executable? and !st.directory?
+          @system_commands[command] = path
+          return path
+        end
+      end
+      @system_commands[command] = false
+      Shell.Fail Error::CommandNotFound, command
+    end
+
+    # call-seq:
+    #   def_system_command(command, path)  ->  Shell::SystemCommand
+    #
+    # Defines a command, registering +path+ as a Shell method for the given
+    # +command+.
+    #
+    #     Shell::CommandProcessor.def_system_command "ls"
+    #       #=> Defines ls.
+    #
+    #     Shell::CommandProcessor.def_system_command "sys_sort", "sort"
+    #       #=> Defines sys_sort as sort
+    #
+    def self.def_system_command(command, path = command)
+      begin
+        eval((d = %Q[def #{command}(*opts)
+                  SystemCommand.new(@shell, '#{path}', *opts)
+               end]), nil, __FILE__, __LINE__ - 1)
+      rescue SyntaxError
+        Shell.notify "warn: Can't define #{command} path: #{path}."
+      end
+      Shell.notify "Define #{command} path: #{path}.", Shell.debug?
+      Shell.notify("Definition of #{command}: ", d,
+             Shell.debug.kind_of?(Integer) && Shell.debug > 1)
+    end
+
+    # call-seq:
+    #   undef_system_command(command) ->  self
+    #
+    # Undefines a command
+    def self.undef_system_command(command)
+      command = command.id2name if command.kind_of?(Symbol)
+      remove_method(command)
+      Shell.module_eval{remove_method(command)}
+      Filter.module_eval{remove_method(command)}
+      self
+    end
+
+    @alias_map = {}
+    # Returns a list of aliased commands
+    def self.alias_map
+      @alias_map
+    end
+    # call-seq:
+    #   alias_command(alias, command, *options) ->  self
+    #
+    # Creates a command alias at the given +alias+ for the given +command+,
+    # passing any +options+ along with it.
+    #
+    #     Shell::CommandProcessor.alias_command "lsC", "ls", "-CBF", "--show-control-chars"
+    #     Shell::CommandProcessor.alias_command("lsC", "ls"){|*opts| ["-CBF", "--show-control-chars", *opts]}
+    #
+    def self.alias_command(ali, command, *opts)
+      ali = ali.id2name if ali.kind_of?(Symbol)
+      command = command.id2name if command.kind_of?(Symbol)
+      begin
+        if iterator?
+          @alias_map[ali.intern] = proc
+
+          eval((d = %Q[def #{ali}(*opts)
+                          @shell.__send__(:#{command},
+                                          *(CommandProcessor.alias_map[:#{ali}].call *opts))
+                        end]), nil, __FILE__, __LINE__ - 1)
+
+        else
+           args = opts.collect{|opt| '"' + opt + '"'}.join(",")
+           eval((d = %Q[def #{ali}(*opts)
+                          @shell.__send__(:#{command}, #{args}, *opts)
+                        end]), nil, __FILE__, __LINE__ - 1)
+        end
+      rescue SyntaxError
+        Shell.notify "warn: Can't alias #{ali} command: #{command}."
+        Shell.notify("Definition of #{ali}: ", d)
+        raise
+      end
+      Shell.notify "Define #{ali} command: #{command}.", Shell.debug?
+      Shell.notify("Definition of #{ali}: ", d,
+             Shell.debug.kind_of?(Integer) && Shell.debug > 1)
+      self
+    end
+
+    # call-seq:
+    #   unalias_command(alias)  ->  self
+    #
+    # Unaliases the given +alias+ command.
+    def self.unalias_command(ali)
+      ali = ali.id2name if ali.kind_of?(Symbol)
+      @alias_map.delete ali.intern
+      undef_system_command(ali)
+    end
+
+    # :nodoc:
+    #
+    # Delegates File and FileTest methods into Shell, including the following
+    # commands:
+    #
+    # * Shell#blockdev?(file)
+    # * Shell#chardev?(file)
+    # * Shell#directory?(file)
+    # * Shell#executable?(file)
+    # * Shell#executable_real?(file)
+    # * Shell#exist?(file)/Shell#exists?(file)
+    # * Shell#file?(file)
+    # * Shell#grpowned?(file)
+    # * Shell#owned?(file)
+    # * Shell#pipe?(file)
+    # * Shell#readable?(file)
+    # * Shell#readable_real?(file)
+    # * Shell#setgid?(file)
+    # * Shell#setuid?(file)
+    # * Shell#size(file)/Shell#size?(file)
+    # * Shell#socket?(file)
+    # * Shell#sticky?(file)
+    # * Shell#symlink?(file)
+    # * Shell#writable?(file)
+    # * Shell#writable_real?(file)
+    # * Shell#zero?(file)
+    # * Shell#syscopy(filename_from, filename_to)
+    # * Shell#copy(filename_from, filename_to)
+    # * Shell#move(filename_from, filename_to)
+    # * Shell#compare(filename_from, filename_to)
+    # * Shell#safe_unlink(*filenames)
+    # * Shell#makedirs(*filenames)
+    # * Shell#install(filename_from, filename_to, mode)
+    #
+    # And also, there are some aliases for convenience:
+    #
+    # * Shell#cmp	<- Shell#compare
+    # * Shell#mv	<- Shell#move
+    # * Shell#cp	<- Shell#copy
+    # * Shell#rm_f	<- Shell#safe_unlink
+    # * Shell#mkpath	<- Shell#makedirs
+    #
+    def self.def_builtin_commands(delegation_class, command_specs)
+      for meth, args in command_specs
+        arg_str = args.collect{|arg| arg.downcase}.join(", ")
+        call_arg_str = args.collect{
+          |arg|
+          case arg
+          when /^(FILENAME.*)$/
+            format("expand_path(%s)", $1.downcase)
+          when /^(\*FILENAME.*)$/
+            # \*FILENAME* -> filenames.collect{|fn| expand_path(fn)}.join(", ")
+            $1.downcase + '.collect{|fn| expand_path(fn)}'
+          else
+            arg
+          end
+        }.join(", ")
+        d = %Q[def #{meth}(#{arg_str})
+                    #{delegation_class}.#{meth}(#{call_arg_str})
+                 end]
+        Shell.notify "Define #{meth}(#{arg_str})", Shell.debug?
+        Shell.notify("Definition of #{meth}: ", d,
+                     Shell.debug.kind_of?(Integer) && Shell.debug > 1)
+        eval d
+      end
+    end
+
+    # call-seq:
+    #     install_system_commands(prefix = "sys_")
+    #
+    # Defines all commands in the Shell.default_system_path as Shell method,
+    # all with given +prefix+ appended to their names.
+    #
+    # Any invalid character names are converted to +_+, and errors are passed
+    # to Shell.notify.
+    #
+    # Methods already defined are skipped.
+    def self.install_system_commands(pre = "sys_")
+      defined_meth = {}
+      for m in Shell.methods
+        defined_meth[m] = true
+      end
+      sh = Shell.new
+      for path in Shell.default_system_path
+        next unless sh.directory? path
+        sh.cd path
+        sh.foreach do
+          |cn|
+          if !defined_meth[pre + cn] && sh.file?(cn) && sh.executable?(cn)
+            command = (pre + cn).gsub(/\W/, "_").sub(/^([0-9])/, '_\1')
+            begin
+              def_system_command(command, sh.expand_path(cn))
+            rescue
+              Shell.notify "warn: Can't define #{command} path: #{cn}"
+            end
+            defined_meth[command] = command
+          end
+        end
+      end
+    end
+
+    def self.add_delegate_command_to_shell(id) # :nodoc:
+      id = id.intern if id.kind_of?(String)
+      name = id.id2name
+      if Shell.method_defined?(id)
+        Shell.notify "warn: override definition of Shell##{name}."
+        Shell.notify "warn: alias Shell##{name} to Shell##{name}_org.\n"
+        Shell.module_eval "alias #{name}_org #{name}"
+      end
+      Shell.notify "method added: Shell##{name}.", Shell.debug?
+      Shell.module_eval(%Q[def #{name}(*args, &block)
+                            begin
+                              @command_processor.__send__(:#{name}, *args, &block)
+                            rescue Exception
+                              $@.delete_if{|s| /:in `__getobj__'$/ =~ s} #`
+                              $@.delete_if{|s| /^\\(eval\\):/ =~ s}
+                            raise
+                            end
+                          end], __FILE__, __LINE__)
+
+      if Shell::Filter.method_defined?(id)
+        Shell.notify "warn: override definition of Shell::Filter##{name}."
+        Shell.notify "warn: alias Shell##{name} to Shell::Filter##{name}_org."
+        Filter.module_eval "alias #{name}_org #{name}"
+      end
+      Shell.notify "method added: Shell::Filter##{name}.", Shell.debug?
+      Filter.module_eval(%Q[def #{name}(*args, &block)
+                            begin
+                              self | @shell.__send__(:#{name}, *args, &block)
+                            rescue Exception
+                              $@.delete_if{|s| /:in `__getobj__'$/ =~ s} #`
+                              $@.delete_if{|s| /^\\(eval\\):/ =~ s}
+                            raise
+                            end
+                          end], __FILE__, __LINE__)
+    end
+
+    # Delegates File methods into Shell, including the following commands:
+    #
+    # * Shell#atime(file)
+    # * Shell#basename(file, *opt)
+    # * Shell#chmod(mode, *files)
+    # * Shell#chown(owner, group, *file)
+    # * Shell#ctime(file)
+    # * Shell#delete(*file)
+    # * Shell#dirname(file)
+    # * Shell#ftype(file)
+    # * Shell#join(*file)
+    # * Shell#link(file_from, file_to)
+    # * Shell#lstat(file)
+    # * Shell#mtime(file)
+    # * Shell#readlink(file)
+    # * Shell#rename(file_from, file_to)
+    # * Shell#split(file)
+    # * Shell#stat(file)
+    # * Shell#symlink(file_from, file_to)
+    # * Shell#truncate(file, length)
+    # * Shell#utime(atime, mtime, *file)
+    #
+    def self.install_builtin_commands
+      # method related File.
+      # (exclude open/foreach/unlink)
+      normal_delegation_file_methods = [
+        ["atime", ["FILENAME"]],
+        ["basename", ["fn", "*opts"]],
+        ["chmod", ["mode", "*FILENAMES"]],
+        ["chown", ["owner", "group", "*FILENAME"]],
+        ["ctime", ["FILENAMES"]],
+        ["delete", ["*FILENAMES"]],
+        ["dirname", ["FILENAME"]],
+        ["ftype", ["FILENAME"]],
+        ["join", ["*items"]],
+        ["link", ["FILENAME_O", "FILENAME_N"]],
+        ["lstat", ["FILENAME"]],
+        ["mtime", ["FILENAME"]],
+        ["readlink", ["FILENAME"]],
+        ["rename", ["FILENAME_FROM", "FILENAME_TO"]],
+        ["split", ["pathname"]],
+        ["stat", ["FILENAME"]],
+        ["symlink", ["FILENAME_O", "FILENAME_N"]],
+        ["truncate", ["FILENAME", "length"]],
+        ["utime", ["atime", "mtime", "*FILENAMES"]]]
+
+      def_builtin_commands(File, normal_delegation_file_methods)
+      alias_method :rm, :delete
+
+      # method related FileTest
+      def_builtin_commands(FileTest,
+                   FileTest.singleton_methods(false).collect{|m| [m, ["FILENAME"]]})
+
+    end
+
+  end
+end