Class: Capissh::Logger

Inherits:
Object
  • Object
show all
Defined in:
lib/capissh/logger.rb

Constant Summary collapse

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
}

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(options = {}) ⇒ Logger

Returns a new instance of Logger.



69
70
71
72
73
74
75
76
77
78
79
80
81
 
# File 'lib/capissh/logger.rb', line 69

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

Instance Attribute Details

#device ⇒ Object

Returns the value of attribute device.



3
4
5
 
# File 'lib/capissh/logger.rb', line 3

def device
  @device
end

#disable_formatters ⇒ Object

Returns the value of attribute disable_formatters.



3
4
5
 
# File 'lib/capissh/logger.rb', line 3

def disable_formatters
  @disable_formatters
end

#level ⇒ Object

Returns the value of attribute level.



3
4
5
 
# File 'lib/capissh/logger.rb', line 3

def level
  @level
end

Class Method Details

.add_formatter(options) ⇒ Object 



54
55
56
57
 
# File 'lib/capissh/logger.rb', line 54

def add_formatter(options)
  @formatters.push(options)
  @sorted_formatters = nil
end

.default ⇒ Object 



64
65
66
 
# File 'lib/capissh/logger.rb', line 64

def default
  @default ||= new(:level => 3)
end

.sorted_formatters ⇒ Object 



59
60
61
62
 
# File 'lib/capissh/logger.rb', line 59

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

Instance Method Details

#close ⇒ Object 



83
84
85
 
# File 'lib/capissh/logger.rb', line 83

def close
  device.close if @needs_close
end

#debug(message, line_prefix = nil) ⇒ Object 



144
145
146
 
# File 'lib/capissh/logger.rb', line 144

def debug(message, line_prefix=nil)
  log(DEBUG, message, line_prefix)
end

#format(message, color, style, nl = "\n") ⇒ Object 



152
153
154
155
 
# File 'lib/capissh/logger.rb', line 152

def format(message, color, style, nl = "\n")
  style = "#{style};" if style
  "\e[#{style}#{color}m" + message.to_s.strip + "\e[0m#{nl}"
end

#important(message, line_prefix = nil) ⇒ Object 



136
137
138
 
# File 'lib/capissh/logger.rb', line 136

def important(message, line_prefix=nil)
  log(IMPORTANT, message, line_prefix)
end

#info(message, line_prefix = nil) ⇒ Object 



140
141
142
 
# File 'lib/capissh/logger.rb', line 140

def info(message, line_prefix=nil)
  log(INFO, message, line_prefix)
end

#log(level, message, line_prefix = nil) ⇒ Object 



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
 
# File 'lib/capissh/logger.rb', line 87

def log(level, message, line_prefix=nil)
  if level <= self.level
    # Only format output if device is a TTY and 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

#trace(message, line_prefix = nil) ⇒ Object 



148
149
150
 
# File 'lib/capissh/logger.rb', line 148

def trace(message, line_prefix=nil)
  log(TRACE, message, line_prefix)
end