######################################################################### A FileTask is a task that includes time based dependencies. If any of a FileTask's prerequisites have a timestamp that is later than the file represented by this task, then the file must be rebuilt (using the supplied actions).

Methods
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Instance Public methods
needed?()

Is this file task needed? Yes if it doesn't exist, or if its time stamp is out of date.

Source: show | on GitHub 

# File ../ruby/lib/rake/file_task.rb, line 15
def needed?
  ! File.exist?(name) || out_of_date?(timestamp)
end
timestamp()

Time stamp for file task.

Source: show | on GitHub 

# File ../ruby/lib/rake/file_task.rb, line 20
def timestamp
  if File.exist?(name)
    File.mtime(name.to_s)
  else
    Rake::EARLY
  end
end
Instance Private methods
out_of_date?(stamp)

Are there any prerequisites with a later time than the given time stamp?

Source: show | on GitHub 

# File ../ruby/lib/rake/file_task.rb, line 31
def out_of_date?(stamp)
  @prerequisites.any? { |n| application[n, @scope].timestamp > stamp}
end
scope_name(scope, task_name)

Apply the scope to the task name according to the rules for this kind of task. File based tasks ignore the scope when creating the name.

Source: show | on GitHub 

# File ../ruby/lib/rake/file_task.rb, line 41
def scope_name(scope, task_name)
  task_name
end