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.



13
14
15
 
# 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.



16
17
18
 
# File 'lib/sproutcore/buildfile/task_manager.rb', line 16

def last_task_options
  @last_task_options
end

#tasks ⇒ Object

List of all defined tasks in this application.



130
131
132
 
# File 'lib/sproutcore/buildfile/task_manager.rb', line 130

def tasks
  @tasks
end

Instance Method Details

#[](task_name, scopes = nil) ⇒ Object

Find a matching task for task_name.



62
63
64
65
 
# File 'lib/sproutcore/buildfile/task_manager.rb', line 62

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

#clear ⇒ Object

Clear all tasks in this application.



135
136
137
138
 
# File 'lib/sproutcore/buildfile/task_manager.rb', line 135

def clear
  @tasks.clear
  @rules.clear
end

#create_rule(*args, &block) ⇒ Object 



35
36
37
38
39
 
# File 'lib/sproutcore/buildfile/task_manager.rb', line 35

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.



178
179
180
 
# File 'lib/sproutcore/buildfile/task_manager.rb', line 178

def current_scope
  @scope.dup
end

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



41
42
43
44
45
46
47
48
49
50
51
52
53
 
# File 'lib/sproutcore/buildfile/task_manager.rb', line 41

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.



184
185
186
187
188
189
190
191
192
 
# File 'lib/sproutcore/buildfile/task_manager.rb', line 184

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

#initialize ⇒ Object 



21
22
23
24
25
26
27
28
 
# File 'lib/sproutcore/buildfile/task_manager.rb', line 21

def initialize
  super
  @task_cache = {}
  @tasks = {}
  @rules = []
  @scope = []
  @last_description = nil
end

#initialize_copy ⇒ Object 



30
31
32
33
 
# File 'lib/sproutcore/buildfile/task_manager.rb', line 30

def initialize_copy(*)
  @task_cache = {}
  super
end

#intern(task_class, task_name) ⇒ Object

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



57
58
59
 
# File 'lib/sproutcore/buildfile/task_manager.rb', line 57

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.



145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
 
# File 'lib/sproutcore/buildfile/task_manager.rb', line 145

def lookup(task_name, initial_scope=nil)
  @task_cache[initial_scope] ||= {}
  @task_cache[initial_scope][task_name] ||= begin
    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
end

#resolve_args(args) ⇒ Object

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



69
70
71
72
73
74
75
76
 
# File 'lib/sproutcore/buildfile/task_manager.rb', line 69

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