Module: DSLTasks::TaskMixin

Included in:
DSLTaskContext, Task
Defined in:
lib/dsltasks/dsltasks.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Dynamic Method Handling

This class handles dynamic methods through the method_missing method

#method_missing(name, *args, &block) ⇒ Object 



88
89
90
 
# File 'lib/dsltasks/dsltasks.rb', line 88

def method_missing(name, *args, &block)
  run_task(name, *args, block)
end

Instance Attribute Details

#__block__ ⇒ Object (readonly)

Returns the value of attribute __block__.



4
5
6
 
# File 'lib/dsltasks/dsltasks.rb', line 4

def __block__
  @__block__
end

#__lib_dirs__ ⇒ Object (readonly)

Returns the value of attribute lib_dirs.



8
9
10
 
# File 'lib/dsltasks/dsltasks.rb', line 8

def __lib_dirs__
  @__lib_dirs__
end

#__lib_stack__ ⇒ Object (readonly)

Returns the value of attribute lib_stack.



7
8
9
 
# File 'lib/dsltasks/dsltasks.rb', line 7

def __lib_stack__
  @__lib_stack__
end

#__name__ ⇒ Object (readonly)

Returns the value of attribute __name__.



5
6
7
 
# File 'lib/dsltasks/dsltasks.rb', line 5

def __name__
  @__name__
end

#__parent_task__ ⇒ Object (readonly)

Returns the value of attribute parent_task.



6
7
8
 
# File 'lib/dsltasks/dsltasks.rb', line 6

def __parent_task__
  @__parent_task__
end

#__root__ ⇒ Object (readonly)

Returns the value of attribute __root__.



9
10
11
 
# File 'lib/dsltasks/dsltasks.rb', line 9

def __root__
  @__root__
end

Instance Method Details

#__caller__ ⇒ Object 



30
31
32
 
# File 'lib/dsltasks/dsltasks.rb', line 30

def __caller__()
  (DSLTasks::task_stack(@__root__))[-2]
end

#__exec__(calling_task, args, block) ⇒ Object 



19
20
21
22
23
24
25
26
27
28
29
 
# File 'lib/dsltasks/dsltasks.rb', line 19

def __exec__(calling_task, args, block)
  rvalue = nil
  task_stack = DSLTasks::task_stack(@__root__)
  task_stack.push self
  unless block.nil?
    args << block
  end
  rvalue = instance_exec(*args, &@__block__)
  task_stack.pop
  return rvalue
end

#__initialize_task_mixin__(opts = {}) ⇒ Object 



10
11
12
13
14
15
16
17
18
 
# File 'lib/dsltasks/dsltasks.rb', line 10

def __initialize_task_mixin__(opts={})
  @__parent_task__ = opts[:parent]
  @__name__ = opts[:name]
  @__block__ = opts[:block]
  @__lib_stack__ = opts[:lib_stack]
  @__lib_dirs__ = opts[:lib_dirs] || (opts[:parent] ? opts[:parent].__lib_dirs__ : [])
  @__root__ = opts[:root] || self
  @__tasks__ = Hash.new
end

#lib(lib_name) ⇒ Object 



33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
 
# File 'lib/dsltasks/dsltasks.rb', line 33

def lib(lib_name)
  lib_name = lib_name.to_s
  if lib_name.start_with?('/')
    if File.exist?(lib_name)
      unless @__lib_stack__.include?(lib_name)
        @__lib_stack__.push(File.expand_path(lib_name))
        instance_eval(File.read(lib_name), File.expand_path(lib_name))
        @__lib_stack__.pop
      end
    else
      raise "Lib file not found: #{lib_name}"
    end
  else
    # search path if not absolute:
    #   directory of file of task from which lib was called
    #   directories in @__lib_dirs__, in order
    dirnames = [File.dirname(@__lib_stack__[-1]), *@__lib_dirs__]
    fnames = dirnames.map {|d| File.join(d, lib_name)}
    fnames.map! {|f| f.end_with?('.rb') ? f : f+'.rb'}
    found_lib = false
    fnames.each do |fname|
      if File.exist?(fname)
        unless @__lib_stack__.include?(fname)
          @__lib_stack__.push(File.expand_path(fname))
          instance_eval(File.read(fname), File.expand_path(fname))
          @__lib_stack__.pop
        end
        found_lib = true
        break
      end
    end
    if !found_lib
      raise "Lib file not found in possible locations: #{fnames.join(',')}"
    end
  end
end

#respond_to_missing?(name, *args) ⇒ Boolean 



91
92
93
94
95
96
97
98
99
 
# File 'lib/dsltasks/dsltasks.rb', line 91

def respond_to_missing?(name, *args)
  if @__tasks__.has_key?(name.to_sym)
    return true
  elsif @__parent_task__
    return @__parent_task__.respond_to_missing?(name, *args)
  else
    return false
  end
end

#run_task(name, *args, block) ⇒ Object 



69
70
71
72
73
74
75
76
77
78
 
# File 'lib/dsltasks/dsltasks.rb', line 69

def run_task(name, *args, block)
  if @__tasks__.has_key?(name.to_sym)
    task = @__tasks__[name.to_sym]
    return task.__exec__(self, args, block)
  elsif @__parent_task__
    return @__parent_task__.run_task(name, *args, block)
  else
    raise "Unrecognized task: #{name}"
  end
end

#task(name, &block) ⇒ Object 



79
80
81
82
83
84
85
86
87
 
# File 'lib/dsltasks/dsltasks.rb', line 79

def task(name, &block)
  if block.nil?
    if @__tasks__.has_key?(name.to_sym)
      return @__tasks__[name.to_sym]
    end
  else
    @__tasks__[name.to_sym] = Task.new(parent: self, lib_stack: @__lib_stack__.clone, name: name.to_sym, block: block, root: @__root__)
  end
end