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
|
begin
require "posix-spawn"
rescue LoadError
require "open3"
end
require "github/markup/implementation"
module GitHub
module Markup
class CommandError < RuntimeError
end
class CommandImplementation < Implementation
attr_reader :command, :block, :name
def initialize(regexp, command, name, &block)
super regexp
@command = command.to_s
@block = block
@name = name
end
def render(content)
rendered = execute(command, content)
rendered = rendered.to_s.empty? ? content : rendered
call_block(rendered, content)
end
private
def call_block(rendered, content)
if block && block.arity == 2
block.call(rendered, content)
elsif block
block.call(rendered)
else
rendered
end
end
if defined?(POSIX::Spawn)
def execute(command, target)
spawn = POSIX::Spawn::Child.new(*command, :input => target)
if spawn.status.success?
sanitize(spawn.out, target.encoding)
else
raise CommandError.new(spawn.err.strip)
end
end
else
def execute(command, target)
output = Open3.popen3(*command) do |stdin, stdout, stderr, wait_thr|
stdin.puts target
stdin.close
if wait_thr.value.success?
stdout.readlines
else
raise CommandError.new(stderr.readlines.join('').strip)
end
end
sanitize(output.join(''), target.encoding)
end
end
def sanitize(input, encoding)
input.gsub("\r", '').force_encoding(encoding)
end
end
end
end
|
