diff options
Diffstat (limited to 'railties/lib/vendor/thor-0.11.3/lib/thor/parser')
4 files changed, 486 insertions, 0 deletions
diff --git a/railties/lib/vendor/thor-0.11.3/lib/thor/parser/argument.rb b/railties/lib/vendor/thor-0.11.3/lib/thor/parser/argument.rb new file mode 100644 index 0000000000..2d7f4dbafb --- /dev/null +++ b/railties/lib/vendor/thor-0.11.3/lib/thor/parser/argument.rb @@ -0,0 +1,67 @@ +class Thor + class Argument + VALID_TYPES = [ :numeric, :hash, :array, :string ] + + attr_reader :name, :description, :required, :type, :default, :banner + alias :human_name :name + + def initialize(name, description=nil, required=true, type=:string, default=nil, banner=nil) + class_name = self.class.name.split("::").last + + raise ArgumentError, "#{class_name} name can't be nil." if name.nil? + raise ArgumentError, "Type :#{type} is not valid for #{class_name.downcase}s." if type && !valid_type?(type) + + @name = name.to_s + @description = description + @required = required || false + @type = (type || :string).to_sym + @default = default + @banner = banner || default_banner + + validate! # Trigger specific validations + end + + def usage + required? ? banner : "[#{banner}]" + end + + def required? + required + end + + def show_default? + case default + when Array, String, Hash + !default.empty? + else + default + end + end + + protected + + def validate! + raise ArgumentError, "An argument cannot be required and have default value." if required? && !default.nil? + end + + def valid_type?(type) + VALID_TYPES.include?(type.to_sym) + end + + def default_banner + case type + when :boolean + nil + when :string, :default + human_name.upcase + when :numeric + "N" + when :hash + "key:value" + when :array + "one two three" + end + end + + end +end diff --git a/railties/lib/vendor/thor-0.11.3/lib/thor/parser/arguments.rb b/railties/lib/vendor/thor-0.11.3/lib/thor/parser/arguments.rb new file mode 100644 index 0000000000..9a2262d6f7 --- /dev/null +++ b/railties/lib/vendor/thor-0.11.3/lib/thor/parser/arguments.rb @@ -0,0 +1,145 @@ +class Thor + class Arguments + NUMERIC = /(\d*\.\d+|\d+)/ + + # Receives an array of args and returns two arrays, one with arguments + # and one with switches. + # + def self.split(args) + arguments = [] + + args.each do |item| + break if item =~ /^-/ + arguments << item + end + + return arguments, args[Range.new(arguments.size, -1)] + end + + def self.parse(base, args) + new(base).parse(args) + end + + # Takes an array of Thor::Argument objects. + # + def initialize(arguments=[]) + @assigns, @non_assigned_required = {}, [] + @switches = arguments + + arguments.each do |argument| + if argument.default + @assigns[argument.human_name] = argument.default + elsif argument.required? + @non_assigned_required << argument + end + end + end + + def parse(args) + @pile = args.dup + + @switches.each do |argument| + break unless peek + @non_assigned_required.delete(argument) + @assigns[argument.human_name] = send(:"parse_#{argument.type}", argument.human_name) + end + + check_requirement! + @assigns + end + + private + + def peek + @pile.first + end + + def shift + @pile.shift + end + + def unshift(arg) + unless arg.kind_of?(Array) + @pile.unshift(arg) + else + @pile = arg + @pile + end + end + + def current_is_value? + peek && peek.to_s !~ /^-/ + end + + # Runs through the argument array getting strings that contains ":" and + # mark it as a hash: + # + # [ "name:string", "age:integer" ] + # + # Becomes: + # + # { "name" => "string", "age" => "integer" } + # + def parse_hash(name) + return shift if peek.is_a?(Hash) + hash = {} + + while current_is_value? && peek.include?(?:) + key, value = shift.split(':') + hash[key] = value + end + hash + end + + # Runs through the argument array getting all strings until no string is + # found or a switch is found. + # + # ["a", "b", "c"] + # + # And returns it as an array: + # + # ["a", "b", "c"] + # + def parse_array(name) + return shift if peek.is_a?(Array) + array = [] + + while current_is_value? + array << shift + end + array + end + + # Check if the peel is numeric ofrmat and return a Float or Integer. + # Otherwise raises an error. + # + def parse_numeric(name) + return shift if peek.is_a?(Numeric) + + unless peek =~ NUMERIC && $& == peek + raise MalformattedArgumentError, "expected numeric value for '#{name}'; got #{peek.inspect}" + end + + $&.index('.') ? shift.to_f : shift.to_i + end + + # Parse string, i.e., just return the current value in the pile. + # + def parse_string(name) + shift + end + + # Raises an error if @non_assigned_required array is not empty. + # + def check_requirement! + unless @non_assigned_required.empty? + names = @non_assigned_required.map do |o| + o.respond_to?(:switch_name) ? o.switch_name : o.human_name + end.join("', '") + + class_name = self.class.name.split('::').last.downcase + raise RequiredArgumentMissingError, "no value provided for required #{class_name} '#{names}'" + end + end + + end +end diff --git a/railties/lib/vendor/thor-0.11.3/lib/thor/parser/option.rb b/railties/lib/vendor/thor-0.11.3/lib/thor/parser/option.rb new file mode 100644 index 0000000000..5c43f6b18f --- /dev/null +++ b/railties/lib/vendor/thor-0.11.3/lib/thor/parser/option.rb @@ -0,0 +1,132 @@ +class Thor + class Option < Argument + attr_reader :aliases, :group + + VALID_TYPES = [:boolean, :numeric, :hash, :array, :string] + + def initialize(name, description=nil, required=nil, type=nil, default=nil, banner=nil, group=nil, aliases=nil) + super(name, description, required, type, default, banner) + @aliases = [*aliases].compact + @group = group.to_s.capitalize if group + end + + # This parse quick options given as method_options. It makes several + # assumptions, but you can be more specific using the option method. + # + # parse :foo => "bar" + # #=> Option foo with default value bar + # + # parse [:foo, :baz] => "bar" + # #=> Option foo with default value bar and alias :baz + # + # parse :foo => :required + # #=> Required option foo without default value + # + # parse :foo => 2 + # #=> Option foo with default value 2 and type numeric + # + # parse :foo => :numeric + # #=> Option foo without default value and type numeric + # + # parse :foo => true + # #=> Option foo with default value true and type boolean + # + # The valid types are :boolean, :numeric, :hash, :array and :string. If none + # is given a default type is assumed. This default type accepts arguments as + # string (--foo=value) or booleans (just --foo). + # + # By default all options are optional, unless :required is given. + # + def self.parse(key, value) + if key.is_a?(Array) + name, *aliases = key + else + name, aliases = key, [] + end + + name = name.to_s + default = value + + type = case value + when Symbol + default = nil + + if VALID_TYPES.include?(value) + value + elsif required = (value == :required) + :string + elsif value == :optional + # TODO Remove this warning in the future. + warn "Optional type is deprecated. Choose :boolean or :string instead. Assumed to be :boolean." + :boolean + end + when TrueClass, FalseClass + :boolean + when Numeric + :numeric + when Hash, Array, String + value.class.name.downcase.to_sym + end + + self.new(name.to_s, nil, required, type, default, nil, nil, aliases) + end + + def switch_name + @switch_name ||= dasherized? ? name : dasherize(name) + end + + def human_name + @human_name ||= dasherized? ? undasherize(name) : name + end + + def usage(padding=0) + sample = if banner && !banner.to_s.empty? + "#{switch_name}=#{banner}" + else + switch_name + end + + sample = "[#{sample}]" unless required? + + if aliases.empty? + (" " * padding) << sample + else + "#{aliases.join(', ')}, #{sample}" + end + end + + # Allow some type predicates as: boolean?, string? and etc. + # + def method_missing(method, *args, &block) + given = method.to_s.sub(/\?$/, '').to_sym + if valid_type?(given) + self.type == given + else + super + end + end + + protected + + def validate! + raise ArgumentError, "An option cannot be boolean and required." if boolean? && required? + end + + def valid_type?(type) + VALID_TYPES.include?(type.to_sym) + end + + def dasherized? + name.index('-') == 0 + end + + def undasherize(str) + str.sub(/^-{1,2}/, '') + end + + def dasherize(str) + (str.length > 1 ? "--" : "-") + str.gsub('_', '-') + end + + end +end diff --git a/railties/lib/vendor/thor-0.11.3/lib/thor/parser/options.rb b/railties/lib/vendor/thor-0.11.3/lib/thor/parser/options.rb new file mode 100644 index 0000000000..01c86b7b27 --- /dev/null +++ b/railties/lib/vendor/thor-0.11.3/lib/thor/parser/options.rb @@ -0,0 +1,142 @@ +class Thor + # This is a modified version of Daniel Berger's Getopt::Long class, licensed + # under Ruby's license. + # + class Options < Arguments + LONG_RE = /^(--\w+[-\w+]*)$/ + SHORT_RE = /^(-[a-z])$/i + EQ_RE = /^(--\w+[-\w+]*|-[a-z])=(.*)$/i + SHORT_SQ_RE = /^-([a-z]{2,})$/i # Allow either -x -v or -xv style for single char args + SHORT_NUM = /^(-[a-z])#{NUMERIC}$/i + + # Receives a hash and makes it switches. + # + def self.to_switches(options) + options.map do |key, value| + case value + when true + "--#{key}" + when Array + "--#{key} #{value.map{ |v| v.inspect }.join(' ')}" + when Hash + "--#{key} #{value.map{ |k,v| "#{k}:#{v}" }.join(' ')}" + when nil, false + "" + else + "--#{key} #{value.inspect}" + end + end.join(" ") + end + + # Takes a hash of Thor::Option objects. + # + def initialize(options={}) + options = options.values + super(options) + @shorts, @switches = {}, {} + + options.each do |option| + @switches[option.switch_name] = option + + option.aliases.each do |short| + @shorts[short.to_s] ||= option.switch_name + end + end + end + + def parse(args) + @pile = args.dup + + while peek + if current_is_switch? + case shift + when SHORT_SQ_RE + unshift($1.split('').map { |f| "-#{f}" }) + next + when EQ_RE, SHORT_NUM + unshift($2) + switch = $1 + when LONG_RE, SHORT_RE + switch = $1 + end + + switch = normalize_switch(switch) + next unless option = switch_option(switch) + + @assigns[option.human_name] = parse_peek(switch, option) + else + shift + end + end + + check_requirement! + @assigns + end + + protected + + # Returns true if the current value in peek is a registered switch. + # + def current_is_switch? + case peek + when LONG_RE, SHORT_RE, EQ_RE, SHORT_NUM + switch?($1) + when SHORT_SQ_RE + $1.split('').any? { |f| switch?("-#{f}") } + end + end + + def switch?(arg) + switch_option(arg) || @shorts.key?(arg) + end + + def switch_option(arg) + if match = no_or_skip?(arg) + @switches[arg] || @switches["--#{match}"] + else + @switches[arg] + end + end + + def no_or_skip?(arg) + arg =~ /^--(no|skip)-([-\w]+)$/ + $2 + end + + # Check if the given argument is actually a shortcut. + # + def normalize_switch(arg) + @shorts.key?(arg) ? @shorts[arg] : arg + end + + # Parse boolean values which can be given as --foo=true, --foo or --no-foo. + # + def parse_boolean(switch) + if current_is_value? + ["true", "TRUE", "t", "T", true].include?(shift) + else + @switches.key?(switch) || !no_or_skip?(switch) + end + end + + # Parse the value at the peek analyzing if it requires an input or not. + # + def parse_peek(switch, option) + unless current_is_value? + if option.boolean? + # No problem for boolean types + elsif no_or_skip?(switch) + return nil # User set value to nil + elsif option.string? && !option.required? + return option.human_name # Return the option name + else + raise MalformattedArgumentError, "no value provided for option '#{switch}'" + end + end + + @non_assigned_required.delete(option) + send(:"parse_#{option.type}", switch) + end + + end +end |