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|
require 'syslog'
module Puppet # :nodoc:
# Pass feedback to the user. Log levels are modeled after syslog's, and it is
# expected that that will be the most common log destination. Supports
# multiple destinations, one of which is a remote server.
class Log
PINK="[0;31m"
GREEN="[0;32m"
YELLOW="[0;33m"
SLATE="[0;34m"
ORANGE="[0;35m"
BLUE="[0;36m"
RESET="[0m"
@levels = [:debug,:info,:notice,:warning,:err,:alert,:emerg,:crit]
@loglevel = 2
@colors = {
:debug => SLATE,
:info => GREEN,
:notice => PINK,
:warning => ORANGE,
:err => YELLOW,
:alert => BLUE,
:emerg => RESET,
:crit => RESET
}
@destinations = {:syslog => Syslog.open("puppet")}
# Reset all logs to basics. Basically just closes all files and undefs
# all of the other objects.
def Log.close(dest = nil)
if dest
if @destinations.include?(dest)
Puppet.warning "Closing %s" % dest
if @destinations.respond_to?(:close)
@destinations[dest].close
end
@destinations.delete(dest)
end
else
@destinations.each { |type, dest|
if dest.respond_to?(:flush)
dest.flush
end
if dest.respond_to?(:close)
dest.close
end
}
@destinations = {}
end
Puppet.info "closed"
end
# Flush any log destinations that support such operations.
def Log.flush
@destinations.each { |type, dest|
if dest.respond_to?(:flush)
dest.flush
end
}
end
# Create a new log message. The primary role of this method is to
# avoid creating log messages below the loglevel.
def Log.create(hash)
if @levels.index(hash[:level]) >= @loglevel
return Puppet::Log.new(hash)
else
return nil
end
end
# Yield each valid level in turn
def Log.eachlevel
@levels.each { |level| yield level }
end
# Return the current log level.
def Log.level
return @levels[@loglevel]
end
# Set the current log level.
def Log.level=(level)
unless level.is_a?(Symbol)
level = level.intern
end
unless @levels.include?(level)
raise Puppet::DevError, "Invalid loglevel %s" % level
end
@loglevel = @levels.index(level)
end
# Create a new log destination.
def Log.newdestination(dest)
# Each destination can only occur once.
if @destinations.include?(dest)
return
end
case dest
when "syslog", :syslog
if Syslog.opened?
Syslog.close
end
@destinations[:syslog] = Syslog.open("puppet")
when /^\// # files
Puppet.info "opening %s as a log" % dest
# first make sure the directory exists
unless FileTest.exist?(File.dirname(dest))
begin
Puppet.recmkdir(File.dirname(dest))
Puppet.info "Creating log directory %s" %
File.dirname(dest)
rescue => detail
Log.destination = :console
Puppet.err "Could not create log directory: %s" %
detail
return
end
end
begin
# create the log file, if it doesn't already exist
file = File.open(dest,File::WRONLY|File::CREAT|File::APPEND)
rescue => detail
Log.destination = :console
Puppet.err "Could not create log file: %s" %
detail
return
end
@destinations[dest] = file
when "console", :console
@destinations[:console] = :console
when Puppet::Server::Logger
@destinations[dest] = dest
else
Puppet.info "Treating %s as a hostname" % dest
args = {}
if dest =~ /:(\d+)/
args[:Port] = $1
args[:Server] = dest.sub(/:\d+/, '')
else
args[:Server] = dest
end
@destinations[dest] = Puppet::Client::LogClient.new(args)
end
end
# Route the actual message. FIXME There are lots of things this method should
# do, like caching, storing messages when there are not yet destinations,
# a bit more.
# It's worth noting that there's a potential for a loop here, if
# the machine somehow gets the destination set as itself.
def Log.newmessage(msg)
@destinations.each { |type, dest|
case dest
when Module # This is the Syslog module
next if msg.remote
# XXX Syslog currently has a bug that makes it so you
# cannot log a message with a '%' in it. So, we get rid
# of them.
if msg.source == "Puppet"
dest.send(msg.level, msg.to_s.gsub("%", ''))
else
dest.send(msg.level, "(%s) %s" %
[msg.source.to_s.gsub("%", ""), msg.to_s.gsub("%", '')]
)
end
when File:
dest.puts("%s %s (%s): %s" %
[msg.time, msg.source, msg.level, msg.to_s])
when :console
if msg.source == "Puppet"
puts @colors[msg.level] + "%s: %s" % [
msg.level, msg.to_s
] + RESET
else
puts @colors[msg.level] + "%s (%s): %s" % [
msg.source, msg.level, msg.to_s
] + RESET
end
when Puppet::Client::LogClient
unless msg.is_a?(String) or msg.remote
begin
#puts "would have sent %s" % msg
#puts "would have sent %s" %
# CGI.escape(Marshal::dump(msg))
begin
tmp = CGI.escape(Marshal::dump(msg))
rescue => detail
puts "Could not dump: %s" % detail.to_s
return
end
dest.addlog(tmp)
#dest.addlog(msg.to_s)
sleep(0.5)
rescue => detail
Puppet.err detail
@destinations.delete(type)
end
end
else
raise Puppet::Error, "Invalid log destination %s" % dest
#puts "Invalid log destination %s" % dest.inspect
end
}
end
# Reopen all of our logs.
def Log.reopen
types = @destinations.keys
@destinations.each { |type, dest|
if dest.respond_to?(:close)
dest.close
end
}
@destinations.clear
# We need to make sure we always end up with some kind of destination
begin
types.each { |type|
Log.newdestination(type)
}
rescue => detail
if @destinations.empty?
Log.newdestination(:syslog)
Puppet.err detail.to_s
end
end
end
# Is the passed level a valid log level?
def self.validlevel?(level)
@levels.include?(level)
end
attr_accessor :level, :message, :source, :time, :tags, :remote
def initialize(args)
unless args.include?(:level) && args.include?(:message)
raise Puppet::DevError, "Puppet::Log called incorrectly"
end
if args[:level].class == String
@level = args[:level].intern
elsif args[:level].class == Symbol
@level = args[:level]
else
raise Puppet::DevError,
"Level is not a string or symbol: #{args[:level].class}"
end
@message = args[:message]
@time = Time.now
# this should include the host name, and probly lots of other
# stuff, at some point
unless self.class.validlevel?(level)
raise Puppet::DevError, "Invalid message level #{level}"
end
if args.include?(:tags)
@tags = args[:tags]
end
if args.include?(:source)
# We can't store the actual source, we just store the path
if args[:source].respond_to?(:path)
@source = args[:source].path
else
@source = args[:source].to_s
end
unless defined? @tags and @tags
if args[:source].respond_to?(:tags)
@tags = args[:source].tags
end
end
else
@source = "Puppet"
end
Log.newmessage(self)
end
def to_s
return @message
end
end
end
# $Id$
|
