Class: Rake::Application

Inherits:
Object
  • Object
show all
Includes:
TaskManager, TraceOutput
Defined in:
lib/rake/application.rb

Overview

Rake main application object. When invoking rake from the command line, a Rake::Application object is created and run.

Constant Summary collapse

DEFAULT_RAKEFILES = 
[
  'rakefile',
  'Rakefile',
  'rakefile.rb',
  'Rakefile.rb'
].freeze

Instance Attribute Summary collapse

Attributes included from TaskManager

#last_description

Instance Method Summary collapse

Methods included from TraceOutput

#trace_on

Methods included from TaskManager

#[], #clear, #create_rule, #current_scope, #define_task, #enhance_with_matching_rule, #in_namespace, #intern, #lookup, #resolve_args, #synthesize_file_task, #tasks, #tasks_in_scope

Constructor Details

#initialize ⇒ Application

Initialize a Rake::Application object.



46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
 
# File 'lib/rake/application.rb', line 46

def initialize
  super
  @name = 'rake'
  @rakefiles = DEFAULT_RAKEFILES.dup
  @rakefile = nil
  @pending_imports = []
  @imported = []
  @loaders = {}
  @default_loader = Rake::DefaultLoader.new
  @original_dir = Dir.pwd
  @top_level_tasks = []
  add_loader('rb', DefaultLoader.new)
  add_loader('rf', DefaultLoader.new)
  add_loader('rake', DefaultLoader.new)
  @tty_output = STDOUT.tty?
  @terminal_columns = ENV['RAKE_COLUMNS'].to_i
end

Instance Attribute Details

#name ⇒ Object (readonly)

The name of the application (typically ‘rake’)



24
25
26
 
# File 'lib/rake/application.rb', line 24

def name
  @name
end

#original_dir ⇒ Object (readonly)

The original directory where rake was invoked.



27
28
29
 
# File 'lib/rake/application.rb', line 27

def original_dir
  @original_dir
end

#rakefile ⇒ Object (readonly)

Name of the actual rakefile used.



30
31
32
 
# File 'lib/rake/application.rb', line 30

def rakefile
  @rakefile
end

#terminal_columns ⇒ Object

Number of columns on the terminal



33
34
35
 
# File 'lib/rake/application.rb', line 33

def terminal_columns
  @terminal_columns
end

#top_level_tasks ⇒ Object (readonly)

List of the top level task names (task names from the command line).



36
37
38
 
# File 'lib/rake/application.rb', line 36

def top_level_tasks
  @top_level_tasks
end

Instance Method Details

#add_import(fn) ⇒ Object

Add a file to the list of files to be imported.



749
750
751
 
# File 'lib/rake/application.rb', line 749

def add_import(fn) # :nodoc:
  @pending_imports << fn
end

#add_loader(ext, loader) ⇒ Object

Add a loader to handle imported files ending in the extension ext.



129
130
131
132
 
# File 'lib/rake/application.rb', line 129

def add_loader(ext, loader)
  ext = ".#{ext}" unless ext =~ /^\./
  @loaders[ext] = loader
end

#collect_command_line_tasks ⇒ Object

Collect the list of tasks on the command line. If no tasks are given, return a list containing only the default task. Environmental assignments are processed at this time as well.



730
731
732
733
734
735
736
737
738
739
740
 
# File 'lib/rake/application.rb', line 730

def collect_command_line_tasks # :nodoc:
  @top_level_tasks = []
  ARGV.each do |arg|
    if arg =~ /^(\w+)=(.*)$/m
      ENV[$1] = $2
    else
      @top_level_tasks << arg unless arg =~ /^-/
    end
  end
  @top_level_tasks.push(default_task_name) if @top_level_tasks.empty?
end

#default_task_name ⇒ Object

Default task name (“default”). (May be overridden by subclasses)



744
745
746
 
# File 'lib/rake/application.rb', line 744

def default_task_name # :nodoc:
  "default"
end

#deprecate(old_usage, new_usage, call_site) ⇒ Object

Warn about deprecated usage.

Example:

Rake.application.deprecate("import", "Rake.import", caller.first)



239
240
241
242
243
244
245
 
# File 'lib/rake/application.rb', line 239

def deprecate(old_usage, new_usage, call_site) # :nodoc:
  unless options.ignore_deprecate
    $stderr.puts "WARNING: '#{old_usage}' is deprecated.  " +
      "Please use '#{new_usage}' instead.\n" +
      "    at #{call_site}"
  end
end

#display_error_message(ex) ⇒ Object

Display the error message that caused the exception.



196
197
198
199
200
201
202
 
# File 'lib/rake/application.rb', line 196

def display_error_message(ex) # :nodoc:
  trace "#{name} aborted!"
  display_exception_details(ex)
  trace "Tasks: #{ex.chain}" if has_chain?(ex)
  trace "(See full trace by running task with --trace)" unless
     options.backtrace
end

#display_exception_backtrace(ex) ⇒ Object

:nodoc:



226
227
228
229
230
231
232
 
# File 'lib/rake/application.rb', line 226

def display_exception_backtrace(ex) # :nodoc:
  if options.backtrace
    trace ex.backtrace.join("\n")
  else
    trace Backtrace.collapse(ex.backtrace).join("\n")
  end
end

#display_exception_details(ex) ⇒ Object

:nodoc:



204
205
206
207
208
209
210
211
212
 
# File 'lib/rake/application.rb', line 204

def display_exception_details(ex) # :nodoc:
  seen = Thread.current[:rake_display_exception_details_seen] ||= []
  return if seen.include? ex
  seen << ex

  display_exception_message_details(ex)
  display_exception_backtrace(ex)
  display_exception_details(ex.cause) if has_cause?(ex)
end

#display_exception_message_details(ex) ⇒ Object

:nodoc:



218
219
220
221
222
223
224
 
# File 'lib/rake/application.rb', line 218

def display_exception_message_details(ex) # :nodoc:
  if ex.instance_of?(RuntimeError)
    trace ex.message
  else
    trace "#{ex.class.name}: #{ex.message}"
  end
end

#display_prerequisites ⇒ Object

Display the tasks and prerequisites



367
368
369
370
371
372
 
# File 'lib/rake/application.rb', line 367

def display_prerequisites # :nodoc:
  tasks.each do |t|
    puts "#{name} #{t.name}"
    t.prerequisites.each { |pre| puts "    #{pre}" }
  end
end

#display_tasks_and_comments ⇒ Object

Display the tasks and comments.



284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
 
# File 'lib/rake/application.rb', line 284

def display_tasks_and_comments # :nodoc:
  displayable_tasks = tasks.select { |t|
    (options.show_all_tasks || t.comment) &&
      t.name =~ options.show_task_pattern
  }
  case options.show_tasks
  when :tasks
    width = displayable_tasks.map { |t| t.name_with_args.length }.max || 10
    if truncate_output?
      max_column = terminal_width - name.size - width - 7
    else
      max_column = nil
    end

    displayable_tasks.each do |t|
      printf("#{name} %-#{width}s  # %s\n",
        t.name_with_args,
        max_column ? truncate(t.comment, max_column) : t.comment)
    end
  when :describe
    displayable_tasks.each do |t|
      puts "#{name} #{t.name_with_args}"
      comment = t.full_comment || ""
      comment.split("\n").each do |line|
        puts "    #{line}"
      end
      puts
    end
  when :lines
    displayable_tasks.each do |t|
      t.locations.each do |loc|
        printf "#{name} %-30s %s\n", t.name_with_args, loc
      end
    end
  else
    fail "Unknown show task mode: '#{options.show_tasks}'"
  end
end

#dynamic_width ⇒ Object

Calculate the dynamic width of the



335
336
337
 
# File 'lib/rake/application.rb', line 335

def dynamic_width # :nodoc:
  @dynamic_width ||= (dynamic_width_stty.nonzero? || dynamic_width_tput)
end

#dynamic_width_stty ⇒ Object

:nodoc:



339
340
341
 
# File 'lib/rake/application.rb', line 339

def dynamic_width_stty # :nodoc:
  %x{stty size 2>/dev/null}.split[1].to_i
end

#dynamic_width_tput ⇒ Object

:nodoc:



343
344
345
 
# File 'lib/rake/application.rb', line 343

def dynamic_width_tput # :nodoc:
  %x{tput cols 2>/dev/null}.to_i
end

#exit_because_of_exception(ex) ⇒ Object

Exit the program because of an unhandle exception. (may be overridden by subclasses)



191
192
193
 
# File 'lib/rake/application.rb', line 191

def exit_because_of_exception(ex) # :nodoc:
  exit(false)
end

#find_rakefile_location ⇒ Object

:nodoc:



655
656
657
658
659
660
661
662
663
664
665
 
# File 'lib/rake/application.rb', line 655

def find_rakefile_location # :nodoc:
  here = Dir.pwd
  until (fn = have_rakefile)
    Dir.chdir("..")
    return nil if Dir.pwd == here || options.nosearch
    here = Dir.pwd
  end
  [fn, here]
ensure
  Dir.chdir(Rake.original_dir)
end

#handle_options ⇒ Object

Read and handle the command line options.



620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
 
# File 'lib/rake/application.rb', line 620

def handle_options # :nodoc:
  options.rakelib = ['rakelib']
  options.trace_output = $stderr

  OptionParser.new do |opts|
    opts.banner = "#{Rake.application.name} [-f rakefile] {options} targets..."
    opts.separator ""
    opts.separator "Options are ..."

    opts.on_tail("-h", "--help", "-H", "Display this help message.") do
      puts opts
      exit
    end

    standard_rake_options.each { |args| opts.on(*args) }
    opts.environment('RAKEOPT')
  end.parse!
end

#has_cause?(ex) ⇒ Boolean

:nodoc:

Returns:

  • (Boolean) 


214
215
216
 
# File 'lib/rake/application.rb', line 214

def has_cause?(ex) # :nodoc:
  ex.respond_to?(:cause) && ex.cause
end

#have_rakefile ⇒ Object

True if one of the files in RAKEFILES is in the current directory. If a match is found, it is copied into @rakefile.



255
256
257
258
259
260
261
262
263
264
265
 
# File 'lib/rake/application.rb', line 255

def have_rakefile # :nodoc:
  @rakefiles.each do |fn|
    if File.exist?(fn)
      others = FileList.glob(fn, File::FNM_CASEFOLD)
      return others.size == 1 ? others.first : fn
    elsif fn == ''
      return fn
    end
  end
  return nil
end

#init(app_name = 'rake') ⇒ Object

Initialize the command line parameters and app name.



83
84
85
86
87
88
89
 
# File 'lib/rake/application.rb', line 83

def init(app_name='rake')
  standard_exception_handling do
    @name = app_name
    handle_options
    collect_command_line_tasks
  end
end

#invoke_task(task_string) ⇒ Object

Invokes a task with arguments that are extracted from task_string



147
148
149
150
151
 
# File 'lib/rake/application.rb', line 147

def invoke_task(task_string) # :nodoc:
  name, args = parse_task_string(task_string)
  t = self[name]
  t.invoke(*args)
end

#load_imports ⇒ Object

Load the pending list of imported files.



754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
 
# File 'lib/rake/application.rb', line 754

def load_imports # :nodoc:
  while fn = @pending_imports.shift
    next if @imported.member?(fn)
    fn_task = lookup(fn) and fn_task.invoke
    ext = File.extname(fn)
    loader = @loaders[ext] || @default_loader
    loader.load(fn)
    if fn_task = lookup(fn) and fn_task.needed?
      fn_task.reenable
      fn_task.invoke
      loader.load(fn)
    end
    @imported << fn
  end
end

#load_rakefile ⇒ Object

Find the rakefile and then load it and any pending imports.



92
93
94
95
96
 
# File 'lib/rake/application.rb', line 92

def load_rakefile
  standard_exception_handling do
    raw_load_rakefile
  end
end

#options ⇒ Object

Application options from the command line



135
136
137
 
# File 'lib/rake/application.rb', line 135

def options
  @options ||= OpenStruct.new
end

#parse_task_string(string) ⇒ Object

:nodoc:



153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
 
# File 'lib/rake/application.rb', line 153

def parse_task_string(string) # :nodoc:
  /^([^\[]+)(?:\[(.*)\])$/ =~ string.to_s

  name           = $1
  remaining_args = $2

  return string, [] unless name
  return name,   [] if     remaining_args.empty?

  args = []

  begin
    /((?:[^\\,]|\\.)*?)\s*(?:,\s*(.*))?$/ =~ remaining_args

    remaining_args = $2
    args << $1.gsub(/\\(.)/, '\1')
  end while remaining_args

  return name, args
end

#print_rakefile_directory(location) ⇒ Object

:nodoc:



667
668
669
670
 
# File 'lib/rake/application.rb', line 667

def print_rakefile_directory(location) # :nodoc:
  $stderr.puts "(in #{Dir.pwd})" unless
    options.silent or original_dir == location
end

#rake_require(file_name, paths = $LOAD_PATH, loaded = $") ⇒ Object

Similar to the regular Ruby require command, but will check for *.rake files in addition to *.rb files.



641
642
643
644
645
646
647
648
649
650
651
652
653
 
# File 'lib/rake/application.rb', line 641

def rake_require(file_name, paths=$LOAD_PATH, loaded=$") # :nodoc:
  fn = file_name + ".rake"
  return false if loaded.include?(fn)
  paths.each do |path|
    full_path = File.join(path, fn)
    if File.exist?(full_path)
      Rake.load_rakefile(full_path)
      loaded << fn
      return true
    end
  end
  fail LoadError, "Can't find #{file_name}"
end

#rakefile_location(backtrace = caller) ⇒ Object

:nodoc:



770
771
772
773
774
775
776
777
 
# File 'lib/rake/application.rb', line 770

def rakefile_location(backtrace=caller) # :nodoc:
  backtrace.map { |t| t[/([^:]+):/, 1] }

  re = /^#{@rakefile}$/
  re = /#{re.source}/i if windows?

  backtrace.find { |str| str =~ re } || ''
end

#raw_load_rakefile ⇒ Object

:nodoc:



672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
 
# File 'lib/rake/application.rb', line 672

def raw_load_rakefile # :nodoc:
  rakefile, location = find_rakefile_location
  if (! options.ignore_system) &&
      (options.load_system || rakefile.nil?) &&
      system_dir && File.directory?(system_dir)
    print_rakefile_directory(location)
    glob("#{system_dir}/*.rake") do |name|
      add_import name
    end
  else
    fail "No Rakefile found (looking for: #{@rakefiles.join(', ')})" if
      rakefile.nil?
    @rakefile = rakefile
    Dir.chdir(location)
    print_rakefile_directory(location)
    Rake.load_rakefile(File.expand_path(@rakefile)) if
      @rakefile && @rakefile != ''
    options.rakelib.each do |rlib|
      glob("#{rlib}/*.rake") do |name|
        add_import name
      end
    end
  end
  load_imports
end

#run ⇒ Object

Run the Rake application. The run method performs the following three steps:

  • Initialize the command line options (init).

  • Define the tasks (load_rakefile).

  • Run the top level tasks (top_level).

If you wish to build a custom rake command, you should call init on your application. Then define any tasks. Finally, call top_level to run your top level tasks.



74
75
76
77
78
79
80
 
# File 'lib/rake/application.rb', line 74

def run
  standard_exception_handling do
    init
    load_rakefile
    top_level
  end
end

#run_with_threads ⇒ Object

Run the given block with the thread startup and shutdown.



112
113
114
115
116
117
118
119
120
121
122
123
124
125
 
# File 'lib/rake/application.rb', line 112

def run_with_threads
  thread_pool.gather_history if options.job_stats == :history

  yield

  thread_pool.join
  if options.job_stats
    stats = thread_pool.statistics
    puts "Maximum active threads: #{stats[:max_active_threads]} + main"
    puts "Total threads in play:  #{stats[:total_threads_in_play]} + main"
  end
  ThreadHistoryDisplay.new(thread_pool.history).show if
    options.job_stats == :history
end

#standard_exception_handling ⇒ Object

Provide standard exception handling for the given block.



175
176
177
178
179
180
181
182
183
184
185
186
187
 
# File 'lib/rake/application.rb', line 175

def standard_exception_handling # :nodoc:
  yield
rescue SystemExit
  # Exit silently with current status
  raise
rescue OptionParser::InvalidOption => ex
  $stderr.puts ex.message
  exit(false)
rescue Exception => ex
  # Exit with error message
  display_error_message(ex)
  exit_because_of_exception(ex)
end

#standard_rake_options ⇒ Object

A list of all the standard options used in rake, suitable for passing to OptionParser.



388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
 
# File 'lib/rake/application.rb', line 388

def standard_rake_options # :nodoc:
  sort_options(
    [
      ['--all', '-A',
        "Show all tasks, even uncommented ones (in combination with -T or -D)",
        lambda { |value|
          options.show_all_tasks = value
        }
      ],
      ['--backtrace=[OUT]',
        "Enable full backtrace.  OUT can be stderr (default) or stdout.",
        lambda { |value|
          options.backtrace = true
          select_trace_output(options, 'backtrace', value)
        }
      ],
      ['--build-all', '-B',
       "Build all prerequisites, including those which are up-to-date.",
       lambda { |value|
         options.build_all = true
       }
      ],
      ['--comments',
        "Show commented tasks only",
        lambda { |value|
          options.show_all_tasks = !value
        }
      ],
      ['--describe', '-D [PATTERN]',
        "Describe the tasks (matching optional PATTERN), then exit.",
        lambda { |value|
          select_tasks_to_show(options, :describe, value)
        }
      ],
      ['--dry-run', '-n',
        "Do a dry run without executing actions.",
        lambda { |value|
          Rake.verbose(true)
          Rake.nowrite(true)
          options.dryrun = true
          options.trace = true
        }
      ],
      ['--execute', '-e CODE',
        "Execute some Ruby code and exit.",
        lambda { |value|
          eval(value)
          exit
        }
      ],
      ['--execute-print', '-p CODE',
        "Execute some Ruby code, print the result, then exit.",
        lambda { |value|
          puts eval(value)
          exit
        }
      ],
      ['--execute-continue',  '-E CODE',
        "Execute some Ruby code, " +
        "then continue with normal task processing.",
        lambda { |value| eval(value) }
      ],
      ['--jobs',  '-j [NUMBER]',
        "Specifies the maximum number of tasks to execute in parallel. " +
        "(default is number of CPU cores + 4)",
        lambda { |value|
          if value.nil? || value == ''
            value = FIXNUM_MAX
          elsif value =~ /^\d+$/
            value = value.to_i
          else
            value = Rake.suggested_thread_count
          end
          value = 1 if value < 1
          options.thread_pool_size = value - 1
        }
      ],
      ['--job-stats [LEVEL]',
        "Display job statistics. " +
        "LEVEL=history displays a complete job list",
        lambda { |value|
          if value =~ /^history/i
            options.job_stats = :history
          else
            options.job_stats = true
          end
        }
      ],
      ['--libdir', '-I LIBDIR',
        "Include LIBDIR in the search path for required modules.",
        lambda { |value| $:.push(value) }
      ],
      ['--multitask', '-m',
        "Treat all tasks as multitasks.",
        lambda { |value| options.always_multitask = true }
      ],
      ['--no-search', '--nosearch',
        '-N', "Do not search parent directories for the Rakefile.",
        lambda { |value| options.nosearch = true }
      ],
      ['--prereqs', '-P',
        "Display the tasks and dependencies, then exit.",
        lambda { |value| options.show_prereqs = true }
      ],
      ['--quiet', '-q',
        "Do not log messages to standard output.",
        lambda { |value| Rake.verbose(false) }
      ],
      ['--rakefile', '-f [FILENAME]',
        "Use FILENAME as the rakefile to search for.",
        lambda { |value|
          value ||= ''
          @rakefiles.clear
          @rakefiles << value
        }
      ],
      ['--rakelibdir', '--rakelib', '-R RAKELIBDIR',
        "Auto-import any .rake files in RAKELIBDIR. " +
        "(default is 'rakelib')",
        lambda { |value|
          options.rakelib = value.split(File::PATH_SEPARATOR)
        }
      ],
      ['--require', '-r MODULE',
        "Require MODULE before executing rakefile.",
        lambda { |value|
          begin
            require value
          rescue LoadError => ex
            begin
              rake_require value
            rescue LoadError
              raise ex
            end
          end
        }
      ],
      ['--rules',
        "Trace the rules resolution.",
        lambda { |value| options.trace_rules = true }
      ],
      ['--silent', '-s',
        "Like --quiet, but also suppresses the " +
        "'in directory' announcement.",
        lambda { |value|
          Rake.verbose(false)
          options.silent = true
        }
      ],
      ['--suppress-backtrace PATTERN',
        "Suppress backtrace lines matching regexp PATTERN. " +
        "Ignored if --trace is on.",
        lambda { |value|
          options.suppress_backtrace_pattern = Regexp.new(value)
        }
      ],
      ['--system',  '-g',
        "Using system wide (global) rakefiles " +
        "(usually '~/.rake/*.rake').",
        lambda { |value| options.load_system = true }
      ],
      ['--no-system', '--nosystem', '-G',
        "Use standard project Rakefile search paths, " +
        "ignore system wide rakefiles.",
        lambda { |value| options.ignore_system = true }
      ],
      ['--tasks', '-T [PATTERN]',
        "Display the tasks (matching optional PATTERN) " +
        "with descriptions, then exit.",
        lambda { |value|
          select_tasks_to_show(options, :tasks, value)
        }
      ],
      ['--trace=[OUT]', '-t',
        "Turn on invoke/execute tracing, enable full backtrace. " +
        "OUT can be stderr (default) or stdout.",
        lambda { |value|
          options.trace = true
          options.backtrace = true
          select_trace_output(options, 'trace', value)
          Rake.verbose(true)
        }
      ],
      ['--verbose', '-v',
        "Log message to standard output.",
        lambda { |value| Rake.verbose(true) }
      ],
      ['--version', '-V',
        "Display the program version.",
        lambda { |value|
          puts "rake, version #{RAKEVERSION}"
          exit
        }
      ],
      ['--where', '-W [PATTERN]',
        "Describe the tasks (matching optional PATTERN), then exit.",
        lambda { |value|
          select_tasks_to_show(options, :lines, value)
          options.show_all_tasks = true
        }
      ],
      ['--no-deprecation-warnings', '-X',
        "Disable the deprecation warnings.",
        lambda { |value|
          options.ignore_deprecate = true
        }
      ],
    ])
end

#system_dir ⇒ Object

The directory path containing the system wide rakefiles.



704
705
706
707
708
709
710
711
712
713
 
# File 'lib/rake/application.rb', line 704

def system_dir # :nodoc:
  @system_dir ||=
    begin
      if ENV['RAKE_SYSTEM']
        ENV['RAKE_SYSTEM']
      else
        standard_system_dir
      end
    end
end

#terminal_width ⇒ Object

:nodoc:



323
324
325
326
327
328
329
330
331
332
 
# File 'lib/rake/application.rb', line 323

def terminal_width # :nodoc:
  if @terminal_columns.nonzero?
    result = @terminal_columns
  else
    result = unix? ? dynamic_width : 80
  end
  (result < 10) ? 80 : result
rescue
  80
end

#thread_pool ⇒ Object

Return the thread pool used for multithreaded processing.



140
141
142
 
# File 'lib/rake/application.rb', line 140

def thread_pool             # :nodoc:
  @thread_pool ||= ThreadPool.new(options.thread_pool_size || Rake.suggested_thread_count-1)
end

#top_level ⇒ Object

Run the top level tasks of a Rake application.



99
100
101
102
103
104
105
106
107
108
109
 
# File 'lib/rake/application.rb', line 99

def top_level
  run_with_threads do
    if options.show_tasks
      display_tasks_and_comments
    elsif options.show_prereqs
      display_prerequisites
    else
      top_level_tasks.each { |task_name| invoke_task(task_name) }
    end
  end
end

#trace(*strings) ⇒ Object

:nodoc:



374
375
376
377
 
# File 'lib/rake/application.rb', line 374

def trace(*strings) # :nodoc:
  options.trace_output ||= $stderr
  trace_on(options.trace_output, *strings)
end

#truncate(string, width) ⇒ Object

:nodoc:



356
357
358
359
360
361
362
363
364
 
# File 'lib/rake/application.rb', line 356

def truncate(string, width) # :nodoc:
  if string.nil?
    ""
  elsif string.length <= width
    string
  else
    (string[0, width - 3] || "") + "..."
  end
end

#truncate_output? ⇒ Boolean

We will truncate output if we are outputting to a TTY or if we’ve been given an explicit column width to honor

Returns:

  • (Boolean) 


279
280
281
 
# File 'lib/rake/application.rb', line 279

def truncate_output? # :nodoc:
  tty_output? || @terminal_columns.nonzero?
end

#tty_output=(tty_output_state) ⇒ Object

Override the detected TTY output state (mostly for testing)



273
274
275
 
# File 'lib/rake/application.rb', line 273

def tty_output=(tty_output_state) # :nodoc:
  @tty_output = tty_output_state
end

#tty_output? ⇒ Boolean

True if we are outputting to TTY, false otherwise

Returns:

  • (Boolean) 


268
269
270
 
# File 'lib/rake/application.rb', line 268

def tty_output? # :nodoc:
  @tty_output
end

#unix? ⇒ Boolean

:nodoc:

Returns:

  • (Boolean) 


347
348
349
350
 
# File 'lib/rake/application.rb', line 347

def unix? # :nodoc:
  RbConfig::CONFIG['host_os'] =~
    /(aix|darwin|linux|(net|free|open)bsd|cygwin|solaris|irix|hpux)/i
end

#windows? ⇒ Boolean

:nodoc:

Returns:

  • (Boolean) 


352
353
354
 
# File 'lib/rake/application.rb', line 352

def windows? # :nodoc:
  Win32.windows?
end