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#
# A drop in replacement for Capistrano::Logger that integrates better with LEAP CLI.
#
require 'capistrano/logger'
#
# from Capistrano::Logger
# =========================
#
# 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
# }
#
module LeapCli
class Logger < Capistrano::Logger
def initialize(options={})
@options = options
@level = options[:level] || 0
@message_buffer = nil
end
def log(level, message, line_prefix=nil, options={})
# in some cases, when the message doesn't end with a return, we buffer it and
# wait until we encounter the return before we log the message out.
if message !~ /\n$/ && level <= 2 && line_prefix.is_a?(String)
@message_buffer ||= ""
@message_buffer += message
return
elsif @message_buffer
message = @message_buffer + message
@message_buffer = nil
end
options[:level] ||= level
message.lines.each do |line|
formatted_line, formatted_prefix, line_options = apply_formatting(line, line_prefix, options)
if formatted_line && line_options[:level] <= self.level
if formatted_line.chars.any?
if formatted_prefix
LeapCli::log "[#{formatted_prefix}] #{formatted_line}"
else
LeapCli::log formatted_line
end
end
end
end
end
private
##
## FORMATTING
##
@formatters = [
# TRACE
{ :match => /command finished/, :color => :white, :style => :dim, :match_level => 3, :priority => -10 },
{ :match => /executing locally/, :color => :yellow, :match_level => 3, :priority => -20 },
# DEBUG
#{ :match => /executing .*/, :color => :green, :match_level => 2, :priority => -10, :timestamp => true },
#{ :match => /.*/, :color => :yellow, :match_level => 2, :priority => -30 },
{ :match => /^transaction:/, :level => 3 },
# INFO
{ :match => /.*out\] (fatal:|ERROR:).*/, :color => :red, :match_level => 1, :priority => -10 },
{ :match => /Permission denied/, :color => :red, :match_level => 1, :priority => -20 },
{ :match => /sh: .+: command not found/, :color => :magenta, :match_level => 1, :priority => -30 },
# IMPORTANT
{ :match => /^err ::/, :color => :red, :match_level => 0, :priority => -10 },
{ :match => /.*/, :color => :blue, :match_level => 0, :priority => -20 },
# CLEANUP
{ :match => /\s+$/, :replace => '', :priority => 0},
# DEBIAN PACKAGES
{ :match => /^(Hit|Ign) /, :color => :green, :priority => -20},
{ :match => /^Err /, :color => :red, :priority => -20},
{ :match => /^W(ARNING)?: /, :color => :yellow, :priority => -20},
{ :match => /^E: /, :color => :red, :priority => -20},
{ :match => /already the newest version/, :color => :green, :priority => -20},
{ :match => /WARNING: The following packages cannot be authenticated!/, :color => :red, :level => 0, :priority => -10},
# PUPPET
{ :match => /^warning: .*is deprecated.*$/, :level => 2, :color => :yellow, :priority => -10},
{ :match => /^notice:/, :level => 1, :color => :cyan, :priority => -20},
{ :match => /^err:/, :level => 0, :color => :red, :priority => -20},
{ :match => /^warning:/, :level => 0, :color => :yellow, :priority => -20},
{ :match => /^Duplicate declaration:/, :level => 0, :color => :red, :priority => -20},
{ :match => /Finished catalog run/, :level => 0, :color => :green, :priority => -10},
]
def self.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
@prefix_formatters = [
{ :match => /(err|out) :: /, :replace => '', :priority => 0},
{ :match => /\s+$/, :replace => '', :priority => 0}
]
def self.prefix_formatters; @prefix_formatters; end
def apply_formatting(message, line_prefix = nil, options={})
message = message.dup
options = options.dup
if !line_prefix.nil?
if !line_prefix.is_a?(String)
line_prefix = line_prefix.to_s.dup
else
line_prefix = line_prefix.dup
end
end
color = options[:color] || :none
style = options[:style]
if line_prefix
self.class.prefix_formatters.each do |formatter|
if line_prefix =~ formatter[:match] && formatter[:replace]
line_prefix.gsub!(formatter[:match], formatter[:replace])
end
end
end
self.class.sorted_formatters.each do |formatter|
if (formatter[:match_level] == level || formatter[:match_level].nil?)
if message =~ formatter[:match]
options[:level] = formatter[:level] if formatter[:level]
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.replace(formatter[:prepend] + message) unless formatter[:prepend].nil?
message.replace(message + formatter[:append]) unless formatter[:append].nil?
message.replace(Time.now.strftime('%Y-%m-%d %T') + ' ' + message) if formatter[:timestamp]
# stop formatting, unless formatter was just for string replacement
break unless formatter[:replace]
end
end
end
if color == :hide
return nil
elsif color == :none && style.nil?
return [message, line_prefix, options]
else
term_color = COLORS[color]
term_style = STYLES[style]
if line_prefix.nil?
message.replace format(message, term_color, term_style)
else
line_prefix.replace format(line_prefix, term_color, term_style).strip # format() appends a \n
end
return [message, line_prefix, options]
end
end
end
end
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