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-rw-r--r--railties/lib/rails/generators/base.rb106
1 files changed, 72 insertions, 34 deletions
diff --git a/railties/lib/rails/generators/base.rb b/railties/lib/rails/generators/base.rb
index c72ec400a0..5523a3f659 100644
--- a/railties/lib/rails/generators/base.rb
+++ b/railties/lib/rails/generators/base.rb
@@ -1,5 +1,7 @@
+# frozen_string_literal: true
+
begin
- require 'thor/group'
+ require "thor/group"
rescue LoadError
puts "Thor is not available.\nIf you ran this command from a git checkout " \
"of Rails, please make sure thor is installed,\nand run this command " \
@@ -16,18 +18,21 @@ module Rails
include Thor::Actions
include Rails::Generators::Actions
+ class_option :skip_namespace, type: :boolean, default: false,
+ desc: "Skip namespace (affects only isolated applications)"
+
add_runtime_options!
strict_args_position!
# Returns the source root for this generator using default_source_root as default.
- def self.source_root(path=nil)
+ def self.source_root(path = nil)
@_source_root = path if path
@_source_root ||= default_source_root
end
# Tries to get the description from a USAGE file one folder above the source
# root otherwise uses a default description.
- def self.desc(description=nil)
+ def self.desc(description = nil)
return super if description
@desc ||= if usage_path
@@ -40,15 +45,15 @@ module Rails
# Convenience method to get the namespace from the class name. It's the
# same as Thor default except that the Generator at the end of the class
# is removed.
- def self.namespace(name=nil)
+ def self.namespace(name = nil)
return super if name
- @namespace ||= super.sub(/_generator$/, '').sub(/:generators:/, ':')
+ @namespace ||= super.sub(/_generator$/, "").sub(/:generators:/, ":")
end
# Convenience method to hide this generator from the available ones when
# running rails generator command.
def self.hide!
- Rails::Generators.hide_namespace self.namespace
+ Rails::Generators.hide_namespace(namespace)
end
# Invoke a generator based on the value supplied by the user to the
@@ -168,7 +173,7 @@ module Rails
names.each do |name|
unless class_options.key?(name)
defaults = if options[:type] == :boolean
- { }
+ {}
elsif [true, false].include?(default_value_for_option(name, options))
{ banner: "" }
else
@@ -195,7 +200,7 @@ module Rails
end
# Make class option aware of Rails::Generators.options and Rails::Generators.aliases.
- def self.class_option(name, options={}) #:nodoc:
+ def self.class_option(name, options = {}) #:nodoc:
options[:desc] = "Indicates when to generate #{name.to_s.humanize.downcase}" unless options.key?(:desc)
options[:aliases] = default_aliases_for_option(name, options)
options[:default] = default_value_for_option(name, options)
@@ -208,14 +213,14 @@ module Rails
def self.default_source_root
return unless base_name && generator_name
return unless default_generator_root
- path = File.join(default_generator_root, 'templates')
+ path = File.join(default_generator_root, "templates")
path if File.exist?(path)
end
# Returns the base root for a common set of generators. This is used to dynamically
# guess the default source root.
def self.base_root
- File.dirname(__FILE__)
+ __dir__
end
# Cache source root and add lib/generators/base/generator/templates to
@@ -230,7 +235,7 @@ module Rails
Rails::Generators.subclasses << base
Rails::Generators.templates_path.each do |path|
- if base.name.include?('::')
+ if base.name.include?("::")
base.source_paths << File.join(path, base.base_name, base.generator_name)
else
base.source_paths << File.join(path, base.generator_name)
@@ -239,11 +244,11 @@ module Rails
end
end
- protected
+ private
# Check whether the given class names are already taken by user
# application or Ruby on Rails.
- def class_collisions(*class_names) #:nodoc:
+ def class_collisions(*class_names)
return unless behavior == :invoke
class_names.flatten.each do |class_name|
@@ -251,35 +256,69 @@ module Rails
next if class_name.strip.empty?
# Split the class from its module nesting
- nesting = class_name.split('::')
+ nesting = class_name.split("::")
last_name = nesting.pop
last = extract_last_module(nesting)
if last && last.const_defined?(last_name.camelize, false)
- raise Error, "The name '#{class_name}' is either already used in your application " <<
- "or reserved by Ruby on Rails. Please choose an alternative and run " <<
+ raise Error, "The name '#{class_name}' is either already used in your application " \
+ "or reserved by Ruby on Rails. Please choose an alternative and run " \
"this generator again."
end
end
end
# Takes in an array of nested modules and extracts the last module
- def extract_last_module(nesting)
+ def extract_last_module(nesting) # :doc:
nesting.inject(Object) do |last_module, nest|
break unless last_module.const_defined?(nest, false)
last_module.const_get(nest)
end
end
+ # Wrap block with namespace of current application
+ # if namespace exists and is not skipped
+ def module_namespacing(&block) # :doc:
+ content = capture(&block)
+ content = wrap_with_namespace(content) if namespaced?
+ concat(content)
+ end
+
+ def indent(content, multiplier = 2) # :doc:
+ spaces = " " * multiplier
+ content.each_line.map { |line| line.blank? ? line : "#{spaces}#{line}" }.join
+ end
+
+ def wrap_with_namespace(content) # :doc:
+ content = indent(content).chomp
+ "module #{namespace.name}\n#{content}\nend\n"
+ end
+
+ def namespace # :doc:
+ Rails::Generators.namespace
+ end
+
+ def namespaced? # :doc:
+ !options[:skip_namespace] && namespace
+ end
+
+ def namespace_dirs
+ @namespace_dirs ||= namespace.name.split("::").map(&:underscore)
+ end
+
+ def namespaced_path # :doc:
+ @namespaced_path ||= namespace_dirs.join("/")
+ end
+
# Use Rails default banner.
- def self.banner
- "rails generate #{namespace.sub(/^rails:/,'')} #{self.arguments.map(&:usage).join(' ')} [options]".gsub(/\s+/, ' ')
+ def self.banner # :doc:
+ "rails generate #{namespace.sub(/^rails:/, '')} #{arguments.map(&:usage).join(' ')} [options]".gsub(/\s+/, " ")
end
# Sets the base_name taking into account the current class namespace.
- def self.base_name
+ def self.base_name # :doc:
@base_name ||= begin
- if base = name.to_s.split('::').first
+ if base = name.to_s.split("::").first
base.underscore
end
end
@@ -287,10 +326,10 @@ module Rails
# Removes the namespaces and get the generator name. For example,
# Rails::Generators::ModelGenerator will return "model" as generator name.
- def self.generator_name
+ def self.generator_name # :doc:
@generator_name ||= begin
- if generator = name.to_s.split('::').last
- generator.sub!(/Generator$/, '')
+ if generator = name.to_s.split("::").last
+ generator.sub!(/Generator$/, "")
generator.underscore
end
end
@@ -298,21 +337,21 @@ module Rails
# Returns the default value for the option name given doing a lookup in
# Rails::Generators.options.
- def self.default_value_for_option(name, options)
+ def self.default_value_for_option(name, options) # :doc:
default_for_option(Rails::Generators.options, name, options, options[:default])
end
# Returns default aliases for the option name given doing a lookup in
# Rails::Generators.aliases.
- def self.default_aliases_for_option(name, options)
+ def self.default_aliases_for_option(name, options) # :doc:
default_for_option(Rails::Generators.aliases, name, options, options[:aliases])
end
# Returns default for the option name given doing a lookup in config.
- def self.default_for_option(config, name, options, default)
- if generator_name and c = config[generator_name.to_sym] and c.key?(name)
+ def self.default_for_option(config, name, options, default) # :doc:
+ if generator_name && (c = config[generator_name.to_sym]) && c.key?(name)
c[name]
- elsif base_name and c = config[base_name.to_sym] and c.key?(name)
+ elsif base_name && (c = config[base_name.to_sym]) && c.key?(name)
c[name]
elsif config[:rails].key?(name)
config[:rails][name]
@@ -331,7 +370,7 @@ module Rails
def self.prepare_for_invocation(name, value) #:nodoc:
return super unless value.is_a?(String) || value.is_a?(Symbol)
- if value && constants = self.hooks[name]
+ if value && constants = hooks[name]
value = name if TrueClass === value
Rails::Generators.find_by_namespace(value, *constants)
elsif klass = Rails::Generators.find_by_namespace(value)
@@ -343,7 +382,7 @@ module Rails
# Small macro to add ruby as an option to the generator with proper
# default value plus an instance helper method called shebang.
- def self.add_shebang_option!
+ def self.add_shebang_option! # :doc:
class_option :ruby, type: :string, aliases: "-r", default: Thor::Util.ruby_command,
desc: "Path to the Ruby binary of your choice", banner: "PATH"
@@ -361,7 +400,7 @@ module Rails
}
end
- def self.usage_path
+ def self.usage_path # :doc:
paths = [
source_root && File.expand_path("../USAGE", source_root),
default_generator_root && File.join(default_generator_root, "USAGE")
@@ -369,11 +408,10 @@ module Rails
paths.compact.detect { |path| File.exist? path }
end
- def self.default_generator_root
+ def self.default_generator_root # :doc:
path = File.expand_path(File.join(base_name, generator_name), base_root)
path if File.exist?(path)
end
-
end
end
end