Module: SC::TaskManager

Included in:
Buildfile
Defined in:
lib/sproutcore/buildfile/task_manager.rb

Overview

Manages a set of tasks. Borrowed from Rake 0.8.3

Instance Attribute Summary collapse

Instance Method Summary collapse

Instance Attribute Details

#last_description ⇒ Object Also known as: last_comment

Track the last comment made in the Rakefile.



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# File 'lib/sproutcore/buildfile/task_manager.rb', line 13

def last_description
  @last_description
end

#last_task_options ⇒ Object

Returns the value of attribute last_task_options.



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# File 'lib/sproutcore/buildfile/task_manager.rb', line 16

def last_task_options
  @last_task_options
end

Instance Method Details

#[](task_name, scopes = nil) ⇒ Object

Find a matching task for task_name.



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# File 'lib/sproutcore/buildfile/task_manager.rb', line 53

def [](task_name, scopes=nil)
  task_name = task_name.to_s
  self.lookup(task_name, scopes) or
    raise "Don't know how to build task '#{task_name}'"
end

#clear ⇒ Object

Clear all tasks in this application.



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# File 'lib/sproutcore/buildfile/task_manager.rb', line 127

def clear
  @tasks.clear
  @rules.clear
end

#create_rule(*args, &block) ⇒ Object 



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# File 'lib/sproutcore/buildfile/task_manager.rb', line 26

def create_rule(*args, &block)
  pattern, arg_names, deps = resolve_args(args)
  pattern = Regexp.new(Regexp.quote(pattern) + '$') if String === pattern
  @rules << [pattern, deps, block]
end

#current_scope ⇒ Object

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



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# File 'lib/sproutcore/buildfile/task_manager.rb', line 167

def current_scope
  @scope.dup
end

#define_task(task_class, *args, &block) ⇒ Object 



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# File 'lib/sproutcore/buildfile/task_manager.rb', line 32

def define_task(task_class, *args, &block)
  task_name, arg_names, deps = resolve_args(args)
  task_name = task_class.scope_name(@scope, task_name)
  deps = [deps] unless deps.respond_to?(:to_ary)
  deps = deps.collect {|d| d.to_s }
  task = intern(task_class, task_name)
  task.set_arg_names(arg_names) unless arg_names.empty?
  task.add_description(@last_description)
  task.add_options(@last_task_options)
  @last_description = nil
  task.enhance(deps, &block)
  task
end

#in_namespace(name) ⇒ Object

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



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# File 'lib/sproutcore/buildfile/task_manager.rb', line 173

def in_namespace(name)
  name ||= generate_name
  @scope.push(name)
  ns = NameSpace.new(self, @scope)
  yield(ns)
  ns
ensure
  @scope.pop
end

#initialize ⇒ Object 



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# File 'lib/sproutcore/buildfile/task_manager.rb', line 18

def initialize
  super
  @tasks = Hash.new
  @rules = Array.new
  @scope = Array.new
  @last_description = nil
end

#intern(task_class, task_name) ⇒ Object

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



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# File 'lib/sproutcore/buildfile/task_manager.rb', line 48

def intern(task_class, task_name)
  @tasks[task_name.to_s] ||= task_class.new(task_name, self)
end

#lookup(task_name, initial_scope = nil) ⇒ Object

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.



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# File 'lib/sproutcore/buildfile/task_manager.rb', line 137

def lookup(task_name, initial_scope=nil)
  initial_scope ||= @scope
  task_name = task_name.to_s
  if task_name =~ /^rake:/
    scopes = []
    task_name = task_name.sub(/^rake:/, '')
  elsif task_name =~ /^(\^+)/
    scopes = initial_scope[0, initial_scope.size - $1.size]
    task_name = task_name.sub(/^(\^+)/, '')
  else
    scopes = initial_scope
  end
  lookup_in_scope(task_name, scopes)
end

#resolve_args(args) ⇒ Object

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



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# File 'lib/sproutcore/buildfile/task_manager.rb', line 61

def resolve_args(args)
  if args.last.is_a?(Hash)
    deps = args.pop
    resolve_args_with_dependencies(args, deps)
  else
    resolve_args_without_dependencies(args)
  end
end

#tasks ⇒ Object

List of all defined tasks in this application.



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# File 'lib/sproutcore/buildfile/task_manager.rb', line 122

def tasks
  @tasks.values.sort_by { |t| t.name }
end