Class: Mygen::Generator

Inherits:
Object
  • Object
show all
Includes:
Naming
Defined in:
lib/mygen/generator.rb

Direct Known Subclasses

Plugins::MygenGenerator

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Methods included from Naming

#camel_case, #cc_name, #d_name, #dash_case, #no_case, #s_name, #snake_case

Constructor Details

#initialize ⇒ Generator

Returns a new instance of Generator.



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

def initialize
  @template_source_dir = File.join(ENV['HOME'], ".mygen", "plugins", generator_name, "templates")
end

Instance Attribute Details

#dest_dir ⇒ Object

Returns the value of attribute dest_dir.



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

def dest_dir
  @dest_dir
end

#dry_run ⇒ Object

Returns the value of attribute dry_run.



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

def dry_run
  @dry_run
end

#name ⇒ Object

Returns the value of attribute name.



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

def name
  @name
end

#options ⇒ Object

Returns the value of attribute options.



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

def options
  @options
end

#template_source_dir ⇒ Object

Returns the value of attribute template_source_dir.



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

def template_source_dir
  @template_source_dir
end

Class Method Details

.descendants ⇒ Object 



11
12
13
 
# File 'lib/mygen/generator.rb', line 11

def self.descendants
  ObjectSpace.each_object(Class).select { |klass| klass < self }
end

Instance Method Details

#description ⇒ Object 



15
16
17
 
# File 'lib/mygen/generator.rb', line 15

def description
  "Plugin has no description"
end

#file_destination(file, bindings) ⇒ Object 



93
94
95
96
97
 
# File 'lib/mygen/generator.rb', line 93

def file_destination(file, bindings)
  # subtract template_source_dir from path, add dest_dir and substitute filenames
  new_file = file.gsub(template_source_dir, '')
  replaced_filename(new_file, bindings)
end

#fileutils ⇒ Object 



23
24
25
 
# File 'lib/mygen/generator.rb', line 23

def fileutils
  dry_run ? FileUtils::DryRun : FileUtils::Verbose
end

#generator_name ⇒ Object 



19
20
21
 
# File 'lib/mygen/generator.rb', line 19

def generator_name
  snake_case(self.class.name)
end

#internal_template_files ⇒ Object 



35
36
37
 
# File 'lib/mygen/generator.rb', line 35

def internal_template_files
  template_files(internal_template_source_dir)
end

#internal_template_source_dir ⇒ Object 



39
40
41
 
# File 'lib/mygen/generator.rb', line 39

def internal_template_source_dir
  File.join(Mygen.root, "templates", generator_name)
end

#make_template_tree(internal = false) ⇒ Object 



48
49
50
51
52
 
# File 'lib/mygen/generator.rb', line 48

def make_template_tree(internal = false)
  @template_source_dir = internal_template_source_dir if internal
  fileutils.rm_rf(dest_dir) if File.exist?(dest_dir)
  fileutils.cp_r(template_source_dir, dest_dir)
end

#make_template_tree_in_current_dir ⇒ Object 



43
44
45
46
 
# File 'lib/mygen/generator.rb', line 43

def make_template_tree_in_current_dir
  fileutils.mkdir_p(dest_dir) unless File.exist?(dest_dir)
  fileutils.cp_r(Dir.glob(File.join(template_source_dir, "*")), dest_dir)
end

#move_file_in_place(src, dest) ⇒ Object 



82
83
84
85
86
 
# File 'lib/mygen/generator.rb', line 82

def move_file_in_place(src, dest)
  sf = File.absolute_path(src)
  df = File.absolute_path(dest)
  fileutils.mv(sf, df) unless sf == df
end

#parse(file, bindings) ⇒ Object 



76
77
78
79
80
 
# File 'lib/mygen/generator.rb', line 76

def parse(file, bindings)
  erb = ERB.new(File.read(file))
  result = erb.result bindings
  File.open(file, "w") { |f| f.write(result) }
end

#parse_and_place_file(file, dest, bindings) ⇒ Object 



88
89
90
91
 
# File 'lib/mygen/generator.rb', line 88

def parse_and_place_file(file, dest, bindings)
  erb = ERB.new(File.read(file))
  erb.result bindings
end

#parse_templates(bindings) ⇒ Object

rename directories that should be filtered, from __name files should be from the destination, so no dirs needs to be filtered and only files need to be processed.



58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
 
# File 'lib/mygen/generator.rb', line 58

def parse_templates(bindings)
  template_dirs(File.join(dest_dir)).each do |dir|
    dest = file_destination(dir, bindings)
    parent_dir = File.expand_path("..", dest)
    fileutils.mkdir_p(parent_dir) unless File.exist?(parent_dir)
    move_file_in_place(dir, dest)
  end
#      Filter files with erb
  template_files(File.join(dest_dir)).each do |file|
    dest = file_destination(file, bindings)
    # This is where you parse the erb files and fill in the contens
    if file.end_with? 'erb'
      parse(file, bindings)
    end
    move_file_in_place(file, dest)
  end
end

#template_dirs(path = template_source_dir) ⇒ Object 



31
32
33
 
# File 'lib/mygen/generator.rb', line 31

def template_dirs(path = template_source_dir)
  Dir.glob(File.join(path, "**/*")).select { |f| File.directory? f }
end

#template_files(path = template_source_dir) ⇒ Object 



27
28
29
 
# File 'lib/mygen/generator.rb', line 27

def template_files(path = template_source_dir)
  Dir.glob(File.join(path, "**/*")).select { |f| File.file? f }
end