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require 'paint'
##
## LOGGING
##
## Ugh. This class does not work well with multiple threads!
##
module LeapCli
extend self
# logging options
def log_level
@log_level ||= 1
end
def log_level=(value)
@log_level = value
end
def indent_level
@indent_level ||= 0
end
def indent_level=(value)
@indent_level = value
end
def log_file
@log_file
end
def log_file=(value)
@log_file = value
if @log_file
if !File.directory?(File.dirname(@log_file))
Util.bail!('Invalid log file "%s", directory "%s" does not exist' % [@log_file, File.dirname(@log_file)])
end
@log_output_stream = File.open(@log_file, 'a')
end
end
def log_output_stream
@log_output_stream
end
end
module LeapCli
module Log
#
# these are log titles typically associated with files
#
FILE_TITLES = [:updated, :created, :removed, :missing, :nochange, :loading]
#
# master logging function.
#
# arguments can be a String, Integer, Symbol, or Hash, in any order.
#
# * String: treated as the message to log.
# * Integer: the log level (0, 1, 2)
# * Symbol: the prefix title to colorize. may be one of
# [:error, :warning, :info, :updated, :created, :removed, :no_change, :missing]
# * Hash: a hash of options. so far, only :indent is supported.
#
def log(*args)
level = args.grep(Integer).first || 1
title = args.grep(Symbol).first
message = args.grep(String).first
options = args.grep(Hash).first || {}
unless message && LeapCli.log_level >= level
return
end
# prefix
clear_prefix = colored_prefix = ""
if title
prefix_options = case title
when :error then ['error', :red, :bold]
when :warning then ['warning', :yellow, :bold]
when :info then ['info', :cyan, :bold]
when :updated then ['updated', :cyan, :bold]
when :updating then ['updating', :cyan, :bold]
when :created then ['created', :green, :bold]
when :removed then ['removed', :red, :bold]
when :nochange then ['no change', :magenta]
when :loading then ['loading', :magenta]
when :missing then ['missing', :yellow, :bold]
when :skipping then ['skipping', :yellow, :bold]
when :run then ['run', :magenta]
when :failed then ['FAILED', :red, :bold]
when :completed then ['completed', :green, :bold]
when :ran then ['ran', :green, :bold]
when :bail then ['bailing out', :red, :bold]
when :invalid then ['invalid', :red, :bold]
else [title.to_s, :cyan, :bold]
end
if options[:host]
clear_prefix = "[%s] %s " % options[:host], prefix_options[0]
colored_prefix = "[%s] %s " % [Paint[options[:host], prefix_options[1], prefix_options[2]], prefix_options[0]]
else
clear_prefix = "%s " % prefix_options[0]
colored_prefix = "%s " % Paint[prefix_options[0], prefix_options[1], prefix_options[2]]
end
elsif options[:host]
clear_prefix = colored_prefix = "[%s] " % options[:host]
end
# transform absolute path names
if title && FILE_TITLES.include?(title) && message =~ /^\//
message = LeapCli::Path.relative_path(message)
end
log_raw(:log, nil) { [clear_prefix, message].join }
log_raw(:stdout, options[:indent]) { [colored_prefix, message].join }
# run block, if given
if block_given?
LeapCli.indent_level += 1
yield
LeapCli.indent_level -= 1
end
end
#
# Add a raw log entry, without any modifications (other than indent).
# Content to be logged is yielded by the block.
#
# if mode == :stdout, output is sent to STDOUT.
# if mode == :log, output is sent to log file, if present.
#
def log_raw(mode, indent=nil, &block)
# NOTE: print message (using 'print' produces better results than 'puts' when multiple threads are logging)
if mode == :log
if LeapCli.log_output_stream
message = yield
if message
timestamp = Time.now.strftime("%b %d %H:%M:%S")
LeapCli.log_output_stream.print("#{timestamp} #{message}\n")
LeapCli.log_output_stream.flush
end
end
elsif mode == :stdout
message = yield
if message
indent ||= LeapCli.indent_level
indent_str = ""
indent_str += " " * indent.to_i
if indent.to_i > 0
indent_str += ' - '
else
indent_str += ' = '
end
STDOUT.print("#{indent_str}#{message}\n")
end
end
end
end
end
|
