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1b023030a8
http://rake.rubyforge.org/doc/release_notes/rake-0_9_4_rdoc.html for a list of changes in 0.9.4. * test/rake*: ditto * NEWS: ditto git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@37667 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
700 lines
21 KiB
Ruby
700 lines
21 KiB
Ruby
require 'shellwords'
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require 'optparse'
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require 'rake/task_manager'
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require 'rake/file_list'
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require 'rake/thread_pool'
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require 'rake/thread_history_display'
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require 'rake/win32'
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module Rake
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CommandLineOptionError = Class.new(StandardError)
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######################################################################
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# Rake main application object. When invoking +rake+ from the
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# command line, a Rake::Application object is created and run.
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#
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class Application
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include TaskManager
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# The name of the application (typically 'rake')
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attr_reader :name
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# The original directory where rake was invoked.
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attr_reader :original_dir
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# Name of the actual rakefile used.
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attr_reader :rakefile
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# Number of columns on the terminal
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attr_accessor :terminal_columns
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# List of the top level task names (task names from the command line).
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attr_reader :top_level_tasks
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DEFAULT_RAKEFILES = ['rakefile', 'Rakefile', 'rakefile.rb', 'Rakefile.rb'].freeze
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# Initialize a Rake::Application object.
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def initialize
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super
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@name = 'rake'
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@rakefiles = DEFAULT_RAKEFILES.dup
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@rakefile = nil
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@pending_imports = []
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@imported = []
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@loaders = {}
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@default_loader = Rake::DefaultLoader.new
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@original_dir = Dir.pwd
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@top_level_tasks = []
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add_loader('rb', DefaultLoader.new)
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add_loader('rf', DefaultLoader.new)
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add_loader('rake', DefaultLoader.new)
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@tty_output = STDOUT.tty?
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@terminal_columns = ENV['RAKE_COLUMNS'].to_i
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end
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# Run the Rake application. The run method performs the following
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# three steps:
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#
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# * Initialize the command line options (+init+).
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# * Define the tasks (+load_rakefile+).
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# * Run the top level tasks (+top_level+).
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#
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# If you wish to build a custom rake command, you should call
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# +init+ on your application. Then define any tasks. Finally,
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# call +top_level+ to run your top level tasks.
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def run
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standard_exception_handling do
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init
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load_rakefile
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top_level
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end
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end
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# Initialize the command line parameters and app name.
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def init(app_name='rake')
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standard_exception_handling do
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@name = app_name
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handle_options
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collect_tasks
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end
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end
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# Find the rakefile and then load it and any pending imports.
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def load_rakefile
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standard_exception_handling do
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raw_load_rakefile
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end
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end
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# Run the top level tasks of a Rake application.
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def top_level
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run_with_threads do
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if options.show_tasks
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display_tasks_and_comments
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elsif options.show_prereqs
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display_prerequisites
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else
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top_level_tasks.each { |task_name| invoke_task(task_name) }
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end
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end
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end
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# Run the given block with the thread startup and shutdown.
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def run_with_threads
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thread_pool.gather_history if options.job_stats == :history
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yield
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thread_pool.join
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if options.job_stats
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stats = thread_pool.statistics
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puts "Maximum active threads: #{stats[:max_active_threads]}"
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puts "Total threads in play: #{stats[:total_threads_in_play]}"
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end
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ThreadHistoryDisplay.new(thread_pool.history).show if options.job_stats == :history
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end
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# Add a loader to handle imported files ending in the extension
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# +ext+.
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def add_loader(ext, loader)
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ext = ".#{ext}" unless ext =~ /^\./
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@loaders[ext] = loader
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end
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# Application options from the command line
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def options
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@options ||= OpenStruct.new
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end
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# Return the thread pool used for multithreaded processing.
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def thread_pool # :nodoc:
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@thread_pool ||= ThreadPool.new(options.thread_pool_size||FIXNUM_MAX)
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end
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# private ----------------------------------------------------------------
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def invoke_task(task_string)
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name, args = parse_task_string(task_string)
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t = self[name]
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t.invoke(*args)
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end
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def parse_task_string(string)
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if string =~ /^([^\[]+)(\[(.*)\])$/
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name = $1
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args = $3.split(/\s*,\s*/)
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else
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name = string
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args = []
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end
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[name, args]
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end
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# Provide standard exception handling for the given block.
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def standard_exception_handling
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begin
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yield
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rescue SystemExit => ex
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# Exit silently with current status
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raise
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rescue OptionParser::InvalidOption => ex
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$stderr.puts ex.message
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exit(false)
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rescue Exception => ex
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# Exit with error message
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display_error_message(ex)
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exit(false)
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end
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end
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# Display the error message that caused the exception.
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def display_error_message(ex)
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trace "#{name} aborted!"
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trace ex.message
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if options.backtrace
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trace ex.backtrace.join("\n")
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else
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trace Backtrace.collapse(ex.backtrace)
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end
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trace "Tasks: #{ex.chain}" if has_chain?(ex)
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trace "(See full trace by running task with --trace)" unless options.backtrace
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end
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# Warn about deprecated usage.
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#
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# Example:
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# Rake.application.deprecate("import", "Rake.import", caller.first)
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#
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def deprecate(old_usage, new_usage, call_site)
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return if options.ignore_deprecate
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$stderr.puts "WARNING: '#{old_usage}' is deprecated. " +
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"Please use '#{new_usage}' instead.\n" +
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" at #{call_site}"
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end
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# Does the exception have a task invocation chain?
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def has_chain?(exception)
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exception.respond_to?(:chain) && exception.chain
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end
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private :has_chain?
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# True if one of the files in RAKEFILES is in the current directory.
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# If a match is found, it is copied into @rakefile.
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def have_rakefile
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@rakefiles.each do |fn|
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if File.exist?(fn)
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others = FileList.glob(fn, File::FNM_CASEFOLD)
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return others.size == 1 ? others.first : fn
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elsif fn == ''
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return fn
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end
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end
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return nil
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end
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# True if we are outputting to TTY, false otherwise
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def tty_output?
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@tty_output
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end
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# Override the detected TTY output state (mostly for testing)
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def tty_output=( tty_output_state )
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@tty_output = tty_output_state
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end
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# We will truncate output if we are outputting to a TTY or if we've been
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# given an explicit column width to honor
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def truncate_output?
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tty_output? || @terminal_columns.nonzero?
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end
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# Display the tasks and comments.
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def display_tasks_and_comments
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displayable_tasks = tasks.select { |t|
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(options.show_all_tasks || t.comment) && t.name =~ options.show_task_pattern
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}
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case options.show_tasks
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when :tasks
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width = displayable_tasks.collect { |t| t.name_with_args.length }.max || 10
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max_column = truncate_output? ? terminal_width - name.size - width - 7 : nil
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displayable_tasks.each do |t|
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printf "#{name} %-#{width}s # %s\n",
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t.name_with_args, max_column ? truncate(t.comment, max_column) : t.comment
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end
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when :describe
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displayable_tasks.each do |t|
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puts "#{name} #{t.name_with_args}"
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comment = t.full_comment || ""
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comment.split("\n").each do |line|
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puts " #{line}"
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end
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puts
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end
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when :lines
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displayable_tasks.each do |t|
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t.locations.each do |loc|
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printf "#{name} %-30s %s\n",t.name_with_args, loc
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end
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end
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else
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fail "Unknown show task mode: '#{options.show_tasks}'"
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end
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end
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def terminal_width
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if @terminal_columns.nonzero?
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result = @terminal_columns
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else
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result = unix? ? dynamic_width : 80
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end
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(result < 10) ? 80 : result
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rescue
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80
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end
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# Calculate the dynamic width of the
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def dynamic_width
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@dynamic_width ||= (dynamic_width_stty.nonzero? || dynamic_width_tput)
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end
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def dynamic_width_stty
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%x{stty size 2>/dev/null}.split[1].to_i
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end
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def dynamic_width_tput
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%x{tput cols 2>/dev/null}.to_i
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end
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def unix?
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RbConfig::CONFIG['host_os'] =~ /(aix|darwin|linux|(net|free|open)bsd|cygwin|solaris|irix|hpux)/i
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end
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def windows?
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Win32.windows?
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end
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def truncate(string, width)
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if string.nil?
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""
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elsif string.length <= width
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string
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else
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( string[0, width-3] || "" ) + "..."
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end
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end
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# Display the tasks and prerequisites
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def display_prerequisites
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tasks.each do |t|
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puts "#{name} #{t.name}"
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t.prerequisites.each { |pre| puts " #{pre}" }
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end
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end
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def trace(*str)
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options.trace_output ||= $stderr
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options.trace_output.puts(*str)
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end
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def sort_options(options)
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options.sort_by { |opt|
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opt.select { |o| o =~ /^-/ }.map { |o| o.downcase }.sort.reverse
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}
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end
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private :sort_options
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# A list of all the standard options used in rake, suitable for
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# passing to OptionParser.
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def standard_rake_options
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sort_options(
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[
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['--all', '-A', "Show all tasks, even uncommented ones",
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lambda { |value|
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options.show_all_tasks = value
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}
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],
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['--backtrace [OUT]', "Enable full backtrace. OUT can be stderr (default) or stdout.",
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lambda { |value|
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options.backtrace = true
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select_trace_output(options, 'backtrace', value)
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}
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],
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['--classic-namespace', '-C', "Put Task and FileTask in the top level namespace",
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lambda { |value|
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require 'rake/classic_namespace'
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options.classic_namespace = true
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}
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],
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['--comments', "Show commented tasks only",
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lambda { |value|
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options.show_all_tasks = !value
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}
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],
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['--describe', '-D [PATTERN]', "Describe the tasks (matching optional PATTERN), then exit.",
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lambda { |value|
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select_tasks_to_show(options, :describe, value)
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}
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],
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['--dry-run', '-n', "Do a dry run without executing actions.",
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lambda { |value|
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Rake.verbose(true)
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Rake.nowrite(true)
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options.dryrun = true
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options.trace = true
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}
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],
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['--execute', '-e CODE', "Execute some Ruby code and exit.",
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lambda { |value|
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eval(value)
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exit
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}
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],
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['--execute-print', '-p CODE', "Execute some Ruby code, print the result, then exit.",
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lambda { |value|
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puts eval(value)
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exit
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}
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],
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['--execute-continue', '-E CODE',
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"Execute some Ruby code, then continue with normal task processing.",
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lambda { |value| eval(value) }
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],
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['--jobs', '-j [NUMBER]',
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"Specifies the maximum number of tasks to execute in parallel. (default:2)",
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lambda { |value| options.thread_pool_size = [(value || 2).to_i,2].max }
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],
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['--job-stats [LEVEL]',
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"Display job statistics. LEVEL=history displays a complete job list",
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lambda { |value|
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if value =~ /^history/i
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options.job_stats = :history
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else
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options.job_stats = true
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end
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}
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],
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['--libdir', '-I LIBDIR', "Include LIBDIR in the search path for required modules.",
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lambda { |value| $:.push(value) }
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],
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['--multitask', '-m', "Treat all tasks as multitasks.",
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lambda { |value| options.always_multitask = true }
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],
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['--no-search', '--nosearch', '-N', "Do not search parent directories for the Rakefile.",
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lambda { |value| options.nosearch = true }
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],
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['--prereqs', '-P', "Display the tasks and dependencies, then exit.",
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lambda { |value| options.show_prereqs = true }
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],
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['--quiet', '-q', "Do not log messages to standard output.",
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lambda { |value| Rake.verbose(false) }
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],
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['--rakefile', '-f [FILE]', "Use FILE as the rakefile.",
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lambda { |value|
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value ||= ''
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@rakefiles.clear
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@rakefiles << value
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}
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],
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['--rakelibdir', '--rakelib', '-R RAKELIBDIR',
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"Auto-import any .rake files in RAKELIBDIR. (default is 'rakelib')",
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lambda { |value| options.rakelib = value.split(File::PATH_SEPARATOR) }
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],
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['--reduce-compat', "Remove DSL in Object; remove Module#const_missing which defines ::Task etc.",
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# Load-time option.
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# Handled in bin/rake where Rake::REDUCE_COMPAT is defined (or not).
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lambda { |_| }
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],
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['--require', '-r MODULE', "Require MODULE before executing rakefile.",
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lambda { |value|
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begin
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require value
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rescue LoadError => ex
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begin
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rake_require value
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rescue LoadError
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raise ex
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end
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end
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}
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],
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['--rules', "Trace the rules resolution.",
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lambda { |value| options.trace_rules = true }
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],
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['--silent', '-s', "Like --quiet, but also suppresses the 'in directory' announcement.",
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lambda { |value|
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Rake.verbose(false)
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options.silent = true
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}
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],
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['--suppress-backtrace PATTERN', "Suppress backtrace lines matching regexp PATTERN. Ignored if --trace is on.",
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lambda { |value|
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options.suppress_backtrace_pattern = Regexp.new(value)
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}
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],
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['--system', '-g',
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"Using system wide (global) rakefiles (usually '~/.rake/*.rake').",
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lambda { |value| options.load_system = true }
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],
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['--no-system', '--nosystem', '-G',
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"Use standard project Rakefile search paths, ignore system wide rakefiles.",
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lambda { |value| options.ignore_system = true }
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],
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['--tasks', '-T [PATTERN]', "Display the tasks (matching optional PATTERN) with descriptions, then exit.",
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lambda { |value|
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select_tasks_to_show(options, :tasks, value)
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}
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],
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['--trace', '-t [OUT]', "Turn on invoke/execute tracing, enable full backtrace. OUT can be stderr (default) or stdout.",
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lambda { |value|
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options.trace = true
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options.backtrace = true
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select_trace_output(options, 'trace', value)
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Rake.verbose(true)
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}
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],
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['--verbose', '-v', "Log message to standard output.",
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lambda { |value| Rake.verbose(true) }
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],
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['--version', '-V', "Display the program version.",
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lambda { |value|
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puts "rake, version #{RAKEVERSION}"
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exit
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}
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],
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['--where', '-W [PATTERN]', "Describe the tasks (matching optional PATTERN), then exit.",
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lambda { |value|
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select_tasks_to_show(options, :lines, value)
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options.show_all_tasks = true
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}
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],
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['--no-deprecation-warnings', '-X', "Disable the deprecation warnings.",
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lambda { |value|
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options.ignore_deprecate = true
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}
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],
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])
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end
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def select_tasks_to_show(options, show_tasks, value)
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options.show_tasks = show_tasks
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options.show_task_pattern = Regexp.new(value || '')
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Rake::TaskManager.record_task_metadata = true
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end
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private :select_tasks_to_show
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def select_trace_output(options, trace_option, value)
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value = value.strip unless value.nil?
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case value
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when 'stdout'
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options.trace_output = $stdout
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when 'stderr', nil
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options.trace_output = $stderr
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else
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fail CommandLineOptionError, "Unrecognized --#{trace_option} option '#{value}'"
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end
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end
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private :select_trace_output
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# Read and handle the command line options.
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def handle_options
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options.rakelib = ['rakelib']
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options.trace_output = $stderr
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OptionParser.new do |opts|
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opts.banner = "rake [-f rakefile] {options} targets..."
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opts.separator ""
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opts.separator "Options are ..."
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opts.on_tail("-h", "--help", "-H", "Display this help message.") do
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puts opts
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exit
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end
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standard_rake_options.each { |args| opts.on(*args) }
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opts.environment('RAKEOPT')
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end.parse!
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# If class namespaces are requested, set the global options
|
|
# according to the values in the options structure.
|
|
if options.classic_namespace
|
|
$show_tasks = options.show_tasks
|
|
$show_prereqs = options.show_prereqs
|
|
$trace = options.trace
|
|
$dryrun = options.dryrun
|
|
$silent = options.silent
|
|
end
|
|
end
|
|
|
|
# Similar to the regular Ruby +require+ command, but will check
|
|
# for *.rake files in addition to *.rb files.
|
|
def rake_require(file_name, paths=$LOAD_PATH, loaded=$")
|
|
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
|
|
|
|
def find_rakefile_location
|
|
here = Dir.pwd
|
|
while ! (fn = have_rakefile)
|
|
Dir.chdir("..")
|
|
if Dir.pwd == here || options.nosearch
|
|
return nil
|
|
end
|
|
here = Dir.pwd
|
|
end
|
|
[fn, here]
|
|
ensure
|
|
Dir.chdir(Rake.original_dir)
|
|
end
|
|
|
|
def print_rakefile_directory(location)
|
|
$stderr.puts "(in #{Dir.pwd})" unless
|
|
options.silent or original_dir == location
|
|
end
|
|
|
|
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)
|
|
$rakefile = @rakefile if options.classic_namespace
|
|
Rake.load_rakefile(File.expand_path(@rakefile)) if @rakefile && @rakefile != ''
|
|
options.rakelib.each do |rlib|
|
|
glob("#{rlib}/*.rake") do |name|
|
|
add_import name
|
|
end
|
|
end
|
|
end
|
|
load_imports
|
|
end
|
|
|
|
def glob(path, &block)
|
|
FileList.glob(path.gsub("\\", '/')).each(&block)
|
|
end
|
|
private :glob
|
|
|
|
# The directory path containing the system wide rakefiles.
|
|
def system_dir
|
|
@system_dir ||=
|
|
begin
|
|
if ENV['RAKE_SYSTEM']
|
|
ENV['RAKE_SYSTEM']
|
|
else
|
|
standard_system_dir
|
|
end
|
|
end
|
|
end
|
|
|
|
# The standard directory containing system wide rake files.
|
|
if Win32.windows?
|
|
def standard_system_dir #:nodoc:
|
|
Win32.win32_system_dir
|
|
end
|
|
else
|
|
def standard_system_dir #:nodoc:
|
|
File.join(File.expand_path('~'), '.rake')
|
|
end
|
|
end
|
|
private :standard_system_dir
|
|
|
|
# Collect the list of tasks on the command line. If no tasks are
|
|
# given, return a list containing only the default task.
|
|
# Environmental assignments are processed at this time as well.
|
|
def collect_tasks
|
|
@top_level_tasks = []
|
|
ARGV.each do |arg|
|
|
if arg =~ /^(\w+)=(.*)$/
|
|
ENV[$1] = $2
|
|
else
|
|
@top_level_tasks << arg unless arg =~ /^-/
|
|
end
|
|
end
|
|
@top_level_tasks.push("default") if @top_level_tasks.size == 0
|
|
end
|
|
|
|
# Add a file to the list of files to be imported.
|
|
def add_import(fn)
|
|
@pending_imports << fn
|
|
end
|
|
|
|
# Load the pending list of imported files.
|
|
def load_imports
|
|
while fn = @pending_imports.shift
|
|
next if @imported.member?(fn)
|
|
if fn_task = lookup(fn)
|
|
fn_task.invoke
|
|
end
|
|
ext = File.extname(fn)
|
|
loader = @loaders[ext] || @default_loader
|
|
loader.load(fn)
|
|
@imported << fn
|
|
end
|
|
end
|
|
|
|
# Warn about deprecated use of top level constant names.
|
|
def const_warning(const_name)
|
|
@const_warning ||= false
|
|
if ! @const_warning
|
|
$stderr.puts %{WARNING: Deprecated reference to top-level constant '#{const_name}' } +
|
|
%{found at: #{rakefile_location}} # '
|
|
$stderr.puts %{ Use --classic-namespace on rake command}
|
|
$stderr.puts %{ or 'require "rake/classic_namespace"' in Rakefile}
|
|
end
|
|
@const_warning = true
|
|
end
|
|
|
|
def rakefile_location(backtrace=caller)
|
|
backtrace.map { |t| t[/([^:]+):/,1] }
|
|
|
|
re = /^#{@rakefile}$/
|
|
re = /#{re.source}/i if windows?
|
|
|
|
backtrace.find { |str| str =~ re } || ''
|
|
end
|
|
|
|
private
|
|
FIXNUM_MAX = (2**(0.size * 8 - 2) - 1) # :nodoc:
|
|
|
|
end
|
|
end
|