forked from capistrano/capistrano
/
logger.rb
153 lines (129 loc) · 4.78 KB
/
logger.rb
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
module Capistrano
class Logger #:nodoc:
attr_accessor :level, :device, :disable_formatters
IMPORTANT = 0
INFO = 1
DEBUG = 2
TRACE = 3
MAX_LEVEL = 3
COLORS = {
:none => "0",
:black => "30",
:red => "31",
:green => "32",
:yellow => "33",
:blue => "34",
:magenta => "35",
:cyan => "36",
:white => "37"
}
STYLES = {
:bright => 1,
:dim => 2,
:underscore => 4,
:blink => 5,
:reverse => 7,
:hidden => 8
}
# Set up default formatters
@formatters = [
# TRACE
{ :match => /command finished/, :color => :white, :style => :dim, :level => 3, :priority => -10 },
{ :match => /executing locally/, :color => :yellow, :level => 3, :priority => -20 },
# DEBUG
{ :match => /executing `.*/, :color => :green, :level => 2, :priority => -10, :timestamp => true },
{ :match => /.*/, :color => :yellow, :level => 2, :priority => -30 },
# INFO
{ :match => /.*out\] (fatal:|ERROR:).*/, :color => :red, :level => 1, :priority => -10 },
{ :match => /Permission denied/, :color => :red, :level => 1, :priority => -20 },
{ :match => /sh: .+: command not found/, :color => :magenta, :level => 1, :priority => -30 },
# IMPORTANT
{ :match => /^err ::/, :color => :red, :level => 0, :priority => -10 },
{ :match => /.*/, :color => :blue, :level => 0, :priority => -20 }
]
class << self
def add_formatter(options) #:nodoc:
@formatters.push(options)
@sorted_formatters = nil
end
def sorted_formatters
# Sort matchers in reverse order so we can break if we found a match.
@sorted_formatters ||= @formatters.sort_by { |i| -(i[:priority] || i[:prio] || 0) }
end
end
def initialize(options={})
output = options[:output] || $stderr
if output.respond_to?(:puts)
@device = output
else
@device = File.open(output.to_str, "a")
@needs_close = true
end
@options = options
@level = options[:level] || 0
@disable_formatters = options[:disable_formatters]
end
def close
device.close if @needs_close
end
def log(level, message, line_prefix=nil)
if level <= self.level
# Only format output if device is a TTY or formatters are not disabled
if device.tty? && !@disable_formatters
color = :none
style = nil
Logger.sorted_formatters.each do |formatter|
if (formatter[:level] == level || formatter[:level].nil?)
if message =~ formatter[:match] || line_prefix =~ formatter[:match]
color = formatter[:color] if formatter[:color]
style = formatter[:style] || formatter[:attribute] # (support original cap colors)
message.gsub!(formatter[:match], formatter[:replace]) if formatter[:replace]
message = formatter[:prepend] + message unless formatter[:prepend].nil?
message = message + formatter[:append] unless formatter[:append].nil?
message = Time.now.strftime('%Y-%m-%d %T') + ' ' + message if formatter[:timestamp]
break unless formatter[:replace]
end
end
end
if color == :hide
# Don't do anything if color is set to :hide
return false
end
term_color = COLORS[color]
term_style = STYLES[style]
# Don't format message if no color or style
unless color == :none and style.nil?
unless line_prefix.nil?
line_prefix = format(line_prefix, term_color, term_style, nil)
end
message = format(message, term_color, term_style)
end
end
indent = "%*s" % [MAX_LEVEL, "*" * (MAX_LEVEL - level)]
(RUBY_VERSION >= "1.9" ? message.lines : message).each do |line|
if line_prefix
device.puts "#{indent} [#{line_prefix}] #{line.strip}\n"
else
device.puts "#{indent} #{line.strip}\n"
end
end
end
end
def important(message, line_prefix=nil)
log(IMPORTANT, message, line_prefix)
end
def info(message, line_prefix=nil)
log(INFO, message, line_prefix)
end
def debug(message, line_prefix=nil)
log(DEBUG, message, line_prefix)
end
def trace(message, line_prefix=nil)
log(TRACE, message, line_prefix)
end
def format(message, color, style, nl = "\n")
style = "#{style};" if style
"\e[#{style}#{color}m" + message.to_s.strip + "\e[0m#{nl}"
end
end
end