Repository navigation
Expand file tree
/
Copy pathtool.rb
More file actions
275 lines (248 loc) · 7.42 KB
/
Copy pathtool.rb
File metadata and controls
275 lines (248 loc) · 7.42 KB
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
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
require "mini_magick/shell"
module MiniMagick
##
# Abstract class that wraps command-line tools. It shouldn't be used directly,
# but through one of its subclasses (e.g. {MiniMagick::Tool::Mogrify}). Use
# this class if you want to be closer to the metal and execute ImageMagick
# commands directly, but still with a nice Ruby interface.
#
# @example
# MiniMagick::Tool::Mogrify.new do |builder|
# builder.resize "500x500"
# builder << "path/to/image.jpg"
# end
#
class Tool
CREATION_OPERATORS = %w[
xc canvas logo rose gradient radial-gradient plasma pattern label caption
text
]
##
# Aside from classic instantiation, it also accepts a block, and then
# executes the command in the end.
#
# @example
# version = MiniMagick::Tool::Identify.new { |b| b.version }
# puts version
#
# @return [MiniMagick::Tool, String] If no block is given, returns an
# instance of the tool, if block is given, returns the output of the
# command.
#
def self.new(*args)
instance = super(*args)
if block_given?
yield instance
instance.call
else
instance
end
end
# @private
attr_reader :name, :args
# @param whiny [Boolean] Whether to raise errors on exit codes different
# than 0.
# @example
# MiniMagick::Tool::Identify.new(whiny: false) do |identify|
# identify.help # returns exit status 1, which would otherwise throw an error
# end
def initialize(name, options = {})
warn "MiniMagick::Tool.new(false) is deprecated and will be removed in MiniMagick 5, use MiniMagick::Tool.new(whiny: false) instead." if !options.is_a?(Hash)
@name = name
@args = []
@whiny = options.is_a?(Hash) ? options.fetch(:whiny, MiniMagick.whiny) : options
end
##
# Executes the command that has been built up.
#
# @example
# mogrify = MiniMagick::Tool::Mogrify.new
# mogrify.resize("500x500")
# mogrify << "path/to/image.jpg"
# mogrify.call # executes `mogrify -resize 500x500 path/to/image.jpg`
#
# @example
# mogrify = MiniMagick::Tool::Mogrify.new
# # build the command
# mogrify.call do |stdout, stderr, status|
# # ...
# end
#
# @yield [Array] Optionally yields stdout, stderr, and exit status
#
# @return [String] Returns the output of the command
#
def call(*args)
options = args[-1].is_a?(Hash) ? args.pop : {}
warn "Passing whiny to MiniMagick::Tool#call is deprecated and will be removed in MiniMagick 5, use MiniMagick::Tool.new(whiny: false) instead." if args.any?
whiny = args.fetch(0, @whiny)
options[:whiny] = whiny
options[:stderr] = false if block_given?
shell = MiniMagick::Shell.new
stdout, stderr, status = shell.run(command, options)
yield stdout, stderr, status if block_given?
stdout.strip
end
##
# The currently built-up command.
#
# @return [Array<String>]
#
# @example
# mogrify = MiniMagick::Tool::Mogrify.new
# mogrify.resize "500x500"
# mogrify.contrast
# mogrify.command #=> ["mogrify", "-resize", "500x500", "-contrast"]
#
def command
[*executable, *args]
end
##
# The executable used for this tool. Respects
# {MiniMagick::Configuration#cli} and {MiniMagick::Configuration#cli_path}.
#
# @return [Array<String>]
#
# @example
# MiniMagick.configure { |config| config.cli = :graphicsmagick }
# identify = MiniMagick::Tool::Identify.new
# identify.executable #=> ["gm", "identify"]
#
def executable
exe = [name]
exe.unshift "gm" if MiniMagick.graphicsmagick?
exe.unshift File.join(MiniMagick.cli_path, exe.shift) if MiniMagick.cli_path
exe
end
##
# Appends raw options, useful for appending image paths.
#
# @return [self]
#
def <<(arg)
args << arg.to_s
self
end
##
# Merges a list of raw options.
#
# @return [self]
#
def merge!(new_args)
new_args.each { |arg| self << arg }
self
end
##
# Changes the last operator to its "plus" form.
#
# @example
# MiniMagick::Tool::Mogrify.new do |mogrify|
# mogrify.antialias.+
# mogrify.distort.+("Perspective", "0,0,4,5 89,0,45,46")
# end
# # executes `mogrify +antialias +distort Perspective '0,0,4,5 89,0,45,46'`
#
# @return [self]
#
def +(*values)
args[-1] = args[-1].sub(/^-/, '+')
self.merge!(values)
self
end
##
# Create an ImageMagick stack in the command (surround.
#
# @example
# MiniMagick::Tool::Convert.new do |convert|
# convert << "wand.gif"
# convert.stack do |stack|
# stack << "wand.gif"
# stack.rotate(30)
# end
# convert.append.+
# convert << "images.gif"
# end
# # executes `convert wand.gif \( wizard.gif -rotate 30 \) +append images.gif`
#
def stack
self << "("
yield self
self << ")"
end
##
# Adds ImageMagick's pseudo-filename `-` for standard input.
#
# @example
# identify = MiniMagick::Tool::Identify.new
# identify.stdin
# identify.call(stdin: image_content)
# # executes `identify -` with the given standard input
#
def stdin
self << "-"
end
##
# Define creator operator methods
#
# mogrify = MiniMagick::Tool.new("mogrify")
# mogrify.canvas("khaki")
# mogrify.command.join(" ") #=> "mogrify canvas:khaki"
#
CREATION_OPERATORS.each do |operator|
define_method(operator.gsub('-', '_')) do |value = nil|
self << "#{operator}:#{value}"
self
end
end
##
# This option is a valid ImageMagick option, but it's also a Ruby method,
# so we need to override it so that it correctly acts as an option method.
#
def clone(*args)
self << '-clone'
self.merge!(args)
self
end
##
# Any undefined method will be transformed into a CLI option
#
# mogrify = MiniMagick::Tool.new("mogrify")
# mogrify.adaptive_blur("...")
# mogrify.foo_bar
# mogrify.command.join(" ") "mogrify -adaptive-blur ... -foo-bar"
#
def method_missing(name, *args)
option = "-#{name.to_s.tr('_', '-')}"
self << option
self.merge!(args)
self
end
def respond_to_missing?(method_name, include_private = false)
true
end
def self.option_methods
@option_methods ||= (
tool = new(whiny: false)
tool << "-help"
help_page = tool.call(stderr: false)
cli_options = help_page.scan(/^\s+-[a-z\-]+/).map(&:strip)
if tool.name == "mogrify" && MiniMagick.graphicsmagick?
# These options were undocumented before 2015-06-14 (see gm bug 302)
cli_options |= %w[-box -convolve -gravity -linewidth -mattecolor -render -shave]
end
cli_options.map { |o| o[1..-1].tr('-','_') }
)
end
end
end
require "mini_magick/tool/animate"
require "mini_magick/tool/compare"
require "mini_magick/tool/composite"
require "mini_magick/tool/conjure"
require "mini_magick/tool/convert"
require "mini_magick/tool/display"
require "mini_magick/tool/identify"
require "mini_magick/tool/import"
require "mini_magick/tool/mogrify"
require "mini_magick/tool/montage"
require "mini_magick/tool/stream"