In Files

  • rake/task_manager.rb


The TaskManager module is a mixin for managing tasks.



Track the last comment made in the Rakefile.


Track the last comment made in the Rakefile.

Public Instance Methods

[](task_name, scopes=nil) click to toggle source

Find a matching task for task_name.

               # File rake/task_manager.rb, line 57
def [](task_name, scopes=nil)
  task_name = task_name.to_s
  self.lookup(task_name, scopes) or
    enhance_with_matching_rule(task_name) or
    synthesize_file_task(task_name) or
    fail "Don't know how to build task '#{task_name}'"
clear() click to toggle source

Clear all tasks in this application.

               # File rake/task_manager.rb, line 159
def clear
current_scope() click to toggle source

Return the list of scope names currently active in the task manager.

               # File rake/task_manager.rb, line 199
def current_scope
enhance_with_matching_rule(task_name, level=0) click to toggle source

If a rule can be found that matches the task name, enhance the task with the prerequisites and actions from the rule. Set the source attribute of the task appropriately for the rule. Return the enhanced task or nil of no rule was found.

               # File rake/task_manager.rb, line 129
def enhance_with_matching_rule(task_name, level=0)
  fail Rake::RuleRecursionOverflowError,
    "Rule Recursion Too Deep" if level >= 16
  @rules.each do |pattern, args, extensions, block|
    if pattern.match(task_name)
      task = attempt_rule(task_name, args, extensions, block, level)
      return task if task
rescue Rake::RuleRecursionOverflowError => ex
  fail ex
in_namespace(name) click to toggle source

Evaluate the block in a nested namespace named name. Create an anonymous namespace if name is nil.

               # File rake/task_manager.rb, line 205
def in_namespace(name)
  name ||= generate_name
  @scope =, @scope)
  ns =, @scope)
  @scope = @scope.tail
intern(task_class, task_name) click to toggle source

Lookup a task. Return an existing task if found, otherwise create a task of the current type.

               # File rake/task_manager.rb, line 52
def intern(task_class, task_name)
  @tasks[task_name.to_s] ||=, self)
lookup(task_name, initial_scope=nil) click to toggle source

Lookup a task, using scope and the scope hints in the task name. This method performs straight lookups without trying to synthesize file tasks or rules. Special scope names (e.g. ‘^’) are recognized. If no scope argument is supplied, use the current scope. Return nil if the task cannot be found.

               # File rake/task_manager.rb, line 169
def lookup(task_name, initial_scope=nil)
  initial_scope ||= @scope
  task_name = task_name.to_s
  if task_name =~ /^rake:/
    scopes = Scope.make
    task_name = task_name.sub(/^rake:/, '')
  elsif task_name =~ /^(\^+)/
    scopes = initial_scope.trim($1.size)
    task_name = task_name.sub(/^(\^+)/, '')
    scopes = initial_scope
  lookup_in_scope(task_name, scopes)
resolve_args(args) click to toggle source

Resolve the arguments for a task/rule. Returns a triplet of [task_name, arg_name_list, prerequisites].

               # File rake/task_manager.rb, line 72
def resolve_args(args)
  if args.last.is_a?(Hash)
    deps = args.pop
    resolve_args_with_dependencies(args, deps)
tasks() click to toggle source

List of all defined tasks in this application.

               # File rake/task_manager.rb, line 145
def tasks
  @tasks.values.sort_by { |t| }
tasks_in_scope(scope) click to toggle source

List of all the tasks defined in the given scope (and its sub-scopes).

               # File rake/task_manager.rb, line 151
def tasks_in_scope(scope)
  prefix = scope.path { |t|
    /^#{prefix}:/ =~

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