1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
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
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
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
158
159
160
161
162
163
164
165
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
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
|
class Bundler::Thor
class Options < Arguments #:nodoc: # rubocop:disable ClassLength
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
OPTS_END = "--".freeze
# 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(&:inspect).join(' ')}"
when Hash
"--#{key} #{value.map { |k, v| "#{k}:#{v}" }.join(' ')}"
when nil, false
nil
else
"--#{key} #{value.inspect}"
end
end.compact.join(" ")
end
# Takes a hash of Bundler::Thor::Option and a hash with defaults.
#
# If +stop_on_unknown+ is true, #parse will stop as soon as it encounters
# an unknown option or a regular argument.
def initialize(hash_options = {}, defaults = {}, stop_on_unknown = false, disable_required_check = false)
@stop_on_unknown = stop_on_unknown
@disable_required_check = disable_required_check
options = hash_options.values
super(options)
# Add defaults
defaults.each do |key, value|
@assigns[key.to_s] = value
@non_assigned_required.delete(hash_options[key])
end
@shorts = {}
@switches = {}
@extra = []
@stopped_parsing_after_extra_index = nil
options.each do |option|
@switches[option.switch_name] = option
option.aliases.each do |short|
name = short.to_s.sub(/^(?!\-)/, "-")
@shorts[name] ||= option.switch_name
end
end
end
def remaining
@extra
end
def peek
return super unless @parsing_options
result = super
if result == OPTS_END
shift
@parsing_options = false
@stopped_parsing_after_extra_index ||= @extra.size
super
else
result
end
end
def parse(args) # rubocop:disable MethodLength
@pile = args.dup
@parsing_options = true
while peek
if parsing_options?
match, is_switch = current_is_switch?
shifted = shift
if is_switch
case shifted
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 = $1
end
switch = normalize_switch(switch)
option = switch_option(switch)
@assigns[option.human_name] = parse_peek(switch, option)
elsif @stop_on_unknown
@parsing_options = false
@extra << shifted
@stopped_parsing_after_extra_index ||= @extra.size
@extra << shift while peek
break
elsif match
@extra << shifted
@extra << shift while peek && peek !~ /^-/
else
@extra << shifted
end
else
@extra << shift
end
end
check_requirement! unless @disable_required_check
assigns = Bundler::Thor::CoreExt::HashWithIndifferentAccess.new(@assigns)
assigns.freeze
assigns
end
def check_unknown!
to_check = @stopped_parsing_after_extra_index ? @extra[0...@stopped_parsing_after_extra_index] : @extra
# an unknown option starts with - or -- and has no more --'s afterward.
unknown = to_check.select { |str| str =~ /^--?(?:(?!--).)*$/ }
raise UnknownArgumentError.new(@switches.keys, unknown) unless unknown.empty?
end
protected
# Check if the current value in peek is a registered switch.
#
# Two booleans are returned. The first is true if the current value
# starts with a hyphen; the second is true if it is a registered switch.
def current_is_switch?
case peek
when LONG_RE, SHORT_RE, EQ_RE, SHORT_NUM
[true, switch?($1)]
when SHORT_SQ_RE
[true, $1.split("").any? { |f| switch?("-#{f}") }]
else
[false, false]
end
end
def current_is_switch_formatted?
case peek
when LONG_RE, SHORT_RE, EQ_RE, SHORT_NUM, SHORT_SQ_RE
true
else
false
end
end
def current_is_value?
peek && (!parsing_options? || super)
end
def switch?(arg)
switch_option(normalize_switch(arg))
end
def switch_option(arg)
if match = no_or_skip?(arg) # rubocop:disable AssignmentInCondition
@switches[arg] || @switches["--#{match}"]
else
@switches[arg]
end
end
# Check if the given argument is actually a shortcut.
#
def normalize_switch(arg)
(@shorts[arg] || arg).tr("_", "-")
end
def parsing_options?
peek
@parsing_options
end
# Parse boolean values which can be given as --foo=true, --foo or --no-foo.
#
def parse_boolean(switch)
if current_is_value?
if ["true", "TRUE", "t", "T", true].include?(peek)
shift
true
elsif ["false", "FALSE", "f", "F", false].include?(peek)
shift
false
else
!no_or_skip?(switch)
end
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)
if parsing_options? && (current_is_switch_formatted? || last?)
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 the default if there is one, else the human name
return option.lazy_default || option.default || option.human_name
elsif option.lazy_default
return option.lazy_default
else
raise MalformattedArgumentError, "No value provided for option '#{switch}'"
end
end
@non_assigned_required.delete(option)
send(:"parse_#{option.type}", switch)
end
end
end
|