Class: Danger::PluginParser

Inherits:
Object
  • Object
show all
Defined in:
lib/danger/plugin_support/plugin_parser.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(paths, verbose = false) ⇒ PluginParser

Returns a new instance of PluginParser.



37
38
39
40
41
42
43
44
45
46
47
 
# File 'lib/danger/plugin_support/plugin_parser.rb', line 37

def initialize(paths, verbose = false)
  raise "Path cannot be empty" if paths.empty?

  setup_yard(verbose)

  if paths.kind_of? String
    @paths = [File.expand_path(paths)]
  else
    @paths = paths
  end
end

Instance Attribute Details

#registry ⇒ Object

Returns the value of attribute registry.



35
36
37
 
# File 'lib/danger/plugin_support/plugin_parser.rb', line 35

def registry
  @registry
end

Instance Method Details

#attribute_parser(gem_path, attribute) ⇒ Object 



159
160
161
162
163
164
 
# File 'lib/danger/plugin_support/plugin_parser.rb', line 159

def attribute_parser(gem_path, attribute)
  {
    read: method_parser(gem_path, attribute[:read]),
    write: method_parser(gem_path, attribute[:write])
  }
end

#classes_in_file ⇒ Object 



71
72
73
 
# File 'lib/danger/plugin_support/plugin_parser.rb', line 71

def classes_in_file
  registry.all(:class).select { |klass| @paths.include? klass.file }
end

#method_params(method) ⇒ Object 



106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
 
# File 'lib/danger/plugin_support/plugin_parser.rb', line 106

def method_params(method)
  return {} unless method[:params]

  params_names = method[:params].map { |param| param.compact.join("=").strip }
  params_values = method[:tags].select { |t| t[:name] == "param" }

  return {} if params_values.empty?
  return {} if params_values.select { |p| p[:types] }.empty?

  return params_names.map.with_index do |name, index|
    name = name.delete ":"
    if index < params_values.length
      type = params_values[index][:types]
      { name => type ? type.first : "Unknown" }
    else
      { name => "Unknown" }
    end
  end
end

#method_parser(gem_path, meth) ⇒ Object 



126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
 
# File 'lib/danger/plugin_support/plugin_parser.rb', line 126

def method_parser(gem_path, meth)
  return nil if meth.nil?
  method = {
    name: meth.name,
    body_md: meth.docstring,
    params: meth.parameters,
    files: meth.files.map { |item| [item.first.gsub(gem_path, ""), item.last] },
    tags: meth.tags.map { |t| { name: t.tag_name, types: t.types } }
  }


  return_v = method_return_string(method)
  params_v = method_params(method)

  # Pull out some derived data
  method[:param_couplets] = params_v
  method[:return] = return_v

  # Create the center params, `thing: OK, other: Thing`
  string_params = params_v.map do |param|
    name = param.keys.first
    param[name].nil? ? name : name + ": " + param[name]
  end.join ", "

  # Wrap it in () if there _are_ params
  string_params = "(" + string_params + ")" unless string_params.empty?
  # Append the return type if we have one
  suffix = return_v.empty? ? "" : " -> #{return_v}"

  method[:one_liner] = meth.name.to_s + string_params + suffix
  method
end

#method_return_string(meth) ⇒ Object

rubocop:disable Metrics/AbcSize



91
92
93
94
95
96
97
98
99
100
101
102
103
104
 
# File 'lib/danger/plugin_support/plugin_parser.rb', line 91

def method_return_string(meth)
  return "" unless meth[:tags]

  return_value = meth[:tags].find { |t| t[:name] == "return" && t[:types] }
  return "" if return_value.nil?
  return "" if return_value[:types].nil?
  return "" unless return_value[:types].kind_of? Array

  unless return_value.empty?
    return "" if return_value[:types].first == "void"
    return return_value[:types].first
  end
  ""
end

#parse ⇒ Object 



62
63
64
65
66
67
68
69
 
# File 'lib/danger/plugin_support/plugin_parser.rb', line 62

def parse
  files = ["lib/danger/plugin_support/plugin.rb"] + @paths

  # This turns on YARD debugging
  # $DEBUG = true

  self.registry = YARD::Registry.load(files, true)
end

#plugins_from_classes(classes) ⇒ Object 



75
76
77
 
# File 'lib/danger/plugin_support/plugin_parser.rb', line 75

def plugins_from_classes(classes)
  classes.select { |klass| klass.inheritance_tree.map(&:name).include? :Plugin }
end

#setup_yard(verbose) ⇒ Object 



49
50
51
52
53
54
55
56
57
58
59
60
 
# File 'lib/danger/plugin_support/plugin_parser.rb', line 49

def setup_yard(verbose)
  require 'yard'

  # Unless specifically asked, don't output anything.
  unless verbose
    YARD::Logger.instance.level = YARD::Logger::FATAL
  end

  # Add some of our custom tags
  YARD::Tags::Library.define_tag('tags', :tags)
  YARD::Tags::Library.define_tag('availablity', :availablity)
end

#to_h(classes) ⇒ Object 



166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
 
# File 'lib/danger/plugin_support/plugin_parser.rb', line 166

def to_h(classes)
  classes.map do |klass|
    # Adds the class being parsed into the ruby runtime, so that we can access it's instance_name
    require klass.file
    real_klass = Danger.const_get klass.name
    attribute_meths = klass.attributes[:instance].values.map(&:values).flatten

    methods = klass.meths - klass.inherited_meths - attribute_meths
    usable_methods = methods.select { |m| m.visibility == :public }.reject { |m| m.name == :initialize || m.name == :instance_name }

    plugin_gem = klass.file.include?("gems") ? klass.file.split("gems/").last.split("-")[0..-2].join("-") : nil
    # Pull out the gem's path ( to make relative file paths )
    # if no gem is found, index  = 0, making gem_path = ""
    index_of_gem_in_path = plugin_gem ? klass.file.split("/").index { |component| component.include? plugin_gem } : 0
    gem_path = klass.file.split("/")[0..index_of_gem_in_path].join("/")

    {
      name: klass.name.to_s,
      body_md: klass.docstring,
      instance_name: real_klass.instance_name,
      gem: plugin_gem,
      gem_path: gem_path,
      files: klass.files.map { |item| [item.first.gsub(gem_path, ""), item.last] },
      example_code: klass.tags.select { |t| t.tag_name == "example" }.map { |tag| { title: tag.name, text: tag.text } }.compact,
      attributes: klass.attributes[:instance].map { |pair| { pair.first => attribute_parser(gem_path, pair.last) } },
      methods: usable_methods.map { |m| method_parser(gem_path, m) },
      tags: klass.tags.select { |t| t.tag_name == "tags" }.map(&:text).compact,
      see: klass.tags.select { |t| t.tag_name == "see" }.map(&:name).map(&:split).flatten.compact,
    }
  end
end

#to_json ⇒ Object 



79
80
81
82
 
# File 'lib/danger/plugin_support/plugin_parser.rb', line 79

def to_json
  plugins = plugins_from_classes(classes_in_file)
  to_h(plugins)
end

#to_json_string ⇒ Object 



84
85
86
87
 
# File 'lib/danger/plugin_support/plugin_parser.rb', line 84

def to_json_string
  plugins = plugins_from_classes(classes_in_file)
  to_h(plugins).to_json
end