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Diffstat (limited to 'ruby_1_8_6/lib/shell.rb')
| -rw-r--r-- | ruby_1_8_6/lib/shell.rb | 269 |
1 files changed, 269 insertions, 0 deletions
diff --git a/ruby_1_8_6/lib/shell.rb b/ruby_1_8_6/lib/shell.rb new file mode 100644 index 0000000000..039f849ef5 --- /dev/null +++ b/ruby_1_8_6/lib/shell.rb @@ -0,0 +1,269 @@ +# +# shell.rb - +# $Release Version: 0.6.0 $ +# $Revision: 1.8 $ +# $Date: 2001/03/19 09:01:11 $ +# by Keiju ISHITSUKA(Nippon Rational Inc.) +# +# -- +# +# +# + +require "e2mmap" +require "thread" + +require "shell/error" +require "shell/command-processor" +require "shell/process-controller" + +class Shell + @RCS_ID='-$Id: shell.rb,v 1.8 2001/03/19 09:01:11 keiju Exp keiju $-' + + include Error + extend Exception2MessageMapper + +# @cascade = true + # debug: true -> normal debug + # debug: 1 -> eval definition debug + # debug: 2 -> detail inspect debug + @debug = false + @verbose = true + + class << Shell + attr :cascade, true + attr :debug, true + attr :verbose, true + +# alias cascade? cascade + alias debug? debug + alias verbose? verbose + @verbose = true + + def debug=(val) + @debug = val + @verbose = val if val + end + + def cd(path) + sh = new + sh.cd path + sh + end + + def default_system_path + if @default_system_path + @default_system_path + else + ENV["PATH"].split(":") + end + end + + def default_system_path=(path) + @default_system_path = path + end + + def default_record_separator + if @default_record_separator + @default_record_separator + else + $/ + end + end + + def default_record_separator=(rs) + @default_record_separator = rs + end + end + + def initialize + @cwd = Dir.pwd + @dir_stack = [] + @umask = nil + + @system_path = Shell.default_system_path + @record_separator = Shell.default_record_separator + + @command_processor = CommandProcessor.new(self) + @process_controller = ProcessController.new(self) + + @verbose = Shell.verbose + @debug = Shell.debug + end + + attr_reader :system_path + + def system_path=(path) + @system_path = path + rehash + end + + attr :umask, true + attr :record_separator, true + + attr :verbose, true + attr :debug, true + + def debug=(val) + @debug = val + @verbose = val if val + end + + alias verbose? verbose + alias debug? debug + + attr_reader :command_processor + attr_reader :process_controller + + def expand_path(path) + File.expand_path(path, @cwd) + end + + # Most Shell commands are defined via CommandProcessor + + # + # Dir related methods + # + # Shell#cwd/dir/getwd/pwd + # Shell#chdir/cd + # Shell#pushdir/pushd + # Shell#popdir/popd + # Shell#mkdir + # Shell#rmdir + + attr :cwd + alias dir cwd + alias getwd cwd + alias pwd cwd + + attr :dir_stack + alias dirs dir_stack + + # If called as iterator, it restores the current directory when the + # block ends. + def chdir(path = nil) + if iterator? + cwd_old = @cwd + begin + chdir(path) + yield + ensure + chdir(cwd_old) + end + else + path = "~" unless path + @cwd = expand_path(path) + notify "current dir: #{@cwd}" + rehash + self + end + end + alias cd chdir + + def pushdir(path = nil) + if iterator? + pushdir(path) + begin + yield + ensure + popdir + end + elsif path + @dir_stack.push @cwd + chdir path + notify "dir stack: [#{@dir_stack.join ', '}]" + self + else + if pop = @dir_stack.pop + @dir_stack.push @cwd + chdir pop + notify "dir stack: [#{@dir_stack.join ', '}]" + self + else + Shell.Fail DirStackEmpty + end + end + end + alias pushd pushdir + + def popdir + if pop = @dir_stack.pop + chdir pop + notify "dir stack: [#{@dir_stack.join ', '}]" + self + else + Shell.Fail DirStackEmpty + end + end + alias popd popdir + + + # + # process management + # + def jobs + @process_controller.jobs + end + + def kill(sig, command) + @process_controller.kill_job(sig, command) + end + + # + # command definitions + # + def Shell.def_system_command(command, path = command) + CommandProcessor.def_system_command(command, path) + end + + def Shell.undef_system_command(command) + CommandProcessor.undef_system_command(command) + end + + def Shell.alias_command(ali, command, *opts, &block) + CommandProcessor.alias_command(ali, command, *opts, &block) + end + + def Shell.unalias_command(ali) + CommandProcessor.unalias_command(ali) + end + + def Shell.install_system_commands(pre = "sys_") + CommandProcessor.install_system_commands(pre) + end + + # + def inspect + if debug.kind_of?(Integer) && debug > 2 + super + else + to_s + end + end + + def self.notify(*opts, &block) + Thread.exclusive do + if opts[-1].kind_of?(String) + yorn = verbose? + else + yorn = opts.pop + end + return unless yorn + + _head = true + print opts.collect{|mes| + mes = mes.dup + yield mes if iterator? + if _head + _head = false + "shell: " + mes + else + " " + mes + end + }.join("\n")+"\n" + end + end + + CommandProcessor.initialize + CommandProcessor.run_config +end |