Class: Puppet::Util::Log

Inherits:
Object show all
Extended by:
Puppet::Util, ClassGen
Includes:
Network::FormatSupport, Puppet::Util, PsychSupport, Tagging
Defined in:
lib/puppet/util/log.rb

Overview

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.

Defined Under Namespace

Classes: Destination

Constant Summary

Constants included from Puppet::Util

ALNUM, ALPHA, AbsolutePathPosix, AbsolutePathWindows, DEFAULT_POSIX_MODE, DEFAULT_WINDOWS_MODE, ESCAPED, HEX, HttpProxy, PUPPET_STACK_INSERTION_FRAME, RESERVED, RFC_3986_URI_REGEX, UNRESERVED, UNSAFE

Constants included from POSIX

POSIX::LOCALE_ENV_VARS, POSIX::USER_ENV_VARS

Constants included from SymbolicFileMode

SymbolicFileMode::SetGIDBit, SymbolicFileMode::SetUIDBit, SymbolicFileMode::StickyBit, SymbolicFileMode::SymbolicMode, SymbolicFileMode::SymbolicSpecialToBit

Constants included from Tagging

Tagging::ValidTagRegex

Class Attribute Summary collapse

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Methods included from Puppet::Util

absolute_path?, benchmark, chuser, clear_environment, create_erb, default_env, deterministic_rand, deterministic_rand_int, exit_on_fail, format_backtrace_array, format_puppetstack_frame, get_env, get_environment, logmethods, merge_environment, path_to_uri, pretty_backtrace, replace_file, resolve_stackframe, rfc2396_escape, safe_posix_fork, set_env, skip_external_facts, symbolizehash, thinmark, uri_encode, uri_query_encode, uri_to_path, uri_unescape, which, withenv, withumask

Methods included from POSIX

#get_posix_field, #gid, groups_of, #idfield, #methodbyid, #methodbyname, #search_posix_field, #uid

Methods included from SymbolicFileMode

#display_mode, #normalize_symbolic_mode, #symbolic_mode_to_int, #valid_symbolic_mode?

Methods included from ClassGen

genclass, genmodule, rmclass

Methods included from Network::FormatSupport

included, #mime, #render, #support_format?, #to_json, #to_msgpack, #to_pson

Methods included from Tagging

#merge_into, #merge_tags_from, #raw_tagged?, #set_tags, #tag, #tag_if_valid, #tagged?, #tags, #tags=, #valid_tag?

Methods included from PsychSupport

#encode_with, #init_with

Constructor Details

#initialize(args) ⇒ Log

Returns a new instance of Log.


300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
 
# File 'lib/puppet/util/log.rb', line 300

def initialize(args)
  self.level = args[:level]
  self.message = args[:message]
  self.source = args[:source] || "Puppet"

  @time = Time.now

  tags = args[:tags]
  if tags
    tags.each { |t| self.tag(t) }
  end

  # Don't add these unless defined (preserve 3.x API as much as possible)
  [:file, :line, :pos, :issue_code, :environment, :node, :backtrace].each do |attr|
    value = args[attr]
    next unless value
    send(attr.to_s + '=', value)
  end

  Log.newmessage(self)
end

Class Attribute Details

.desttypes ⇒ Object (readonly)

Returns the value of attribute desttypes.


48
49
50
 
# File 'lib/puppet/util/log.rb', line 48

def desttypes
  @desttypes
end

Instance Attribute Details

#backtrace ⇒ Object

Returns the value of attribute backtrace.


297
298
299
 
# File 'lib/puppet/util/log.rb', line 297

def backtrace
  @backtrace
end

#environment ⇒ Object

Returns the value of attribute environment.


297
298
299
 
# File 'lib/puppet/util/log.rb', line 297

def environment
  @environment
end

#file ⇒ Object

Returns the value of attribute file.


297
298
299
 
# File 'lib/puppet/util/log.rb', line 297

def file
  @file
end

#issue_code ⇒ Object

Returns the value of attribute issue_code.


297
298
299
 
# File 'lib/puppet/util/log.rb', line 297

def issue_code
  @issue_code
end

#level ⇒ Object

Returns the value of attribute level.


298
299
300
 
# File 'lib/puppet/util/log.rb', line 298

def level
  @level
end

#line ⇒ Object

Returns the value of attribute line.


297
298
299
 
# File 'lib/puppet/util/log.rb', line 297

def line
  @line
end

#message ⇒ Object

Returns the value of attribute message.


298
299
300
 
# File 'lib/puppet/util/log.rb', line 298

def message
  @message
end

#node ⇒ Object

Returns the value of attribute node.


297
298
299
 
# File 'lib/puppet/util/log.rb', line 297

def node
  @node
end

#pos ⇒ Object

Returns the value of attribute pos.


297
298
299
 
# File 'lib/puppet/util/log.rb', line 297

def pos
  @pos
end

#remote ⇒ Object

Returns the value of attribute remote.


297
298
299
 
# File 'lib/puppet/util/log.rb', line 297

def remote
  @remote
end

#source ⇒ Object

Returns the value of attribute source.


297
298
299
 
# File 'lib/puppet/util/log.rb', line 297

def source
  @source
end

#time ⇒ Object

Returns the value of attribute time.


297
298
299
 
# File 'lib/puppet/util/log.rb', line 297

def time
  @time
end

Class Method Details

.autoflush=(v) ⇒ Object 


76
77
78
79
80
 
# File 'lib/puppet/util/log.rb', line 76

def Log.autoflush=(v)
  @destinations.each do |type, dest|
    dest.autoflush = v if dest.respond_to?(:autoflush=)
  end
end

.close(destination) ⇒ Object

Reset log to basics. Basically just flushes and closes files and undefs other objects.


53
54
55
56
57
58
59
 
# File 'lib/puppet/util/log.rb', line 53

def Log.close(destination)
  if @destinations.include?(destination)
    @destinations[destination].flush if @destinations[destination].respond_to?(:flush)
    @destinations[destination].close if @destinations[destination].respond_to?(:close)
    @destinations.delete(destination)
  end
end

.close_all ⇒ Object

Raises:


61
62
63
64
65
66
67
 
# File 'lib/puppet/util/log.rb', line 61

def self.close_all
  @destinations.keys.each { |dest|
    close(dest)
  }
  #TRANSLATORS "Log.close_all" is a method name and should not be translated
  raise Puppet::DevError.new(_("Log.close_all failed to close %{destinations}") % { destinations: @destinations.keys.inspect }) if !@destinations.empty?
end

.create(hash) ⇒ Object

Create a new log message. The primary role of this method is to avoid creating log messages below the loglevel.

Raises:


84
85
86
87
88
 
# File 'lib/puppet/util/log.rb', line 84

def Log.create(hash)
  raise Puppet::DevError, _("Logs require a level") unless hash.include?(:level)
  raise Puppet::DevError, _("Invalid log level %{level}") % { level: hash[:level] } unless @levels.index(hash[:level])
  @levels.index(hash[:level]) >= @loglevel ? Puppet::Util::Log.new(hash) : nil
end

.destinations ⇒ Object 


90
91
92
 
# File 'lib/puppet/util/log.rb', line 90

def Log.destinations
  @destinations
end

.eachlevel ⇒ Object

Yield each valid level in turn


95
96
97
 
# File 'lib/puppet/util/log.rb', line 95

def Log.eachlevel
  @levels.each { |level| yield level }
end

.flush ⇒ Object

Flush any log destinations that support such operations.


70
71
72
73
74
 
# File 'lib/puppet/util/log.rb', line 70

def Log.flush
  @destinations.each { |type, dest|
    dest.flush if dest.respond_to?(:flush)
  }
end

.flushqueue ⇒ Object 


208
209
210
211
212
213
214
 
# File 'lib/puppet/util/log.rb', line 208

def Log.flushqueue
  return unless @destinations.size >= 1
  @queued.each do |msg|
    Log.newmessage(msg)
  end
  @queued.clear
end

.force_flushqueue ⇒ Object

Flush the logging queue. If there are no destinations available,

adds in a console logger before flushing the queue.

This is mainly intended to be used as a last-resort attempt

to ensure that logging messages are not thrown away before
the program is about to exit--most likely in a horrific
error scenario.

Returns:

  • nil


223
224
225
226
227
228
 
# File 'lib/puppet/util/log.rb', line 223

def Log.force_flushqueue()
  if (@destinations.empty? and !(@queued.empty?))
    newdestination(:console)
  end
  flushqueue
end

.from_data_hash(data) ⇒ Object 


266
267
268
269
270
 
# File 'lib/puppet/util/log.rb', line 266

def self.from_data_hash(data)
  obj = allocate
  obj.initialize_from_hash(data)
  obj
end

.level ⇒ Object

Return the current log level.


100
101
102
 
# File 'lib/puppet/util/log.rb', line 100

def Log.level
  @levels[@loglevel]
end

.level=(level) ⇒ Object

Set the current log level.

Raises:


105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
 
# File 'lib/puppet/util/log.rb', line 105

def Log.level=(level)
  level = level.intern unless level.is_a?(Symbol)

  # loglevel is a 0-based index
  loglevel = @levels.index(level)
  raise Puppet::DevError, _("Invalid loglevel %{level}") % { level: level } unless loglevel

  return if @loglevel == loglevel

  # loglevel changed
  @loglevel = loglevel

  # Enable or disable Facter debugging
  Puppet.runtime[:facter].debugging(level == :debug)
end

.levels ⇒ Object 


121
122
123
 
# File 'lib/puppet/util/log.rb', line 121

def Log.levels
  @levels.dup
end

.log_func(scope, level, vals) ⇒ Object

Log output using scope and level

Parameters:

  • scope (Puppet::Parser::Scope)
  • level (Symbol) —

    log level

  • vals (Array<Object>) —

    the values to log (will be converted to string and joined with space)


278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
 
# File 'lib/puppet/util/log.rb', line 278

def self.log_func(scope, level, vals)
  # NOTE: 3x, does this: vals.join(" ")
  # New implementation uses the evaluator to get proper formatting per type
  vals = vals.map { |v| Puppet::Pops::Evaluator::EvaluatorImpl.new.string(v, scope) }

  # Bypass Puppet.<level> call since it picks up source from "self" which is not applicable in the 4x
  # Function API.
  # TODO: When a function can obtain the file, line, pos of the call merge those in (3x supports
  #       options :file, :line. (These were never output when calling the 3x logging functions since
  #       3x scope does not know about the calling location at that detailed level, nor do they
  #       appear in a report to stdout/error when included). Now, the output simply uses scope (like 3x)
  #       as this is good enough, but does not reflect the true call-stack, but is a rough estimate
  #       of where the logging call originates from).
  #
  Puppet::Util::Log.create({:level => level, :source => scope, :message => vals.join(" ")})
  nil
end

.newdestination(dest) ⇒ Object

Create a new log destination.

Raises:


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
154
155
156
157
158
159
160
161
 
# File 'lib/puppet/util/log.rb', line 126

def Log.newdestination(dest)
  # Each destination can only occur once.
  if @destinations.find { |name, obj| obj.name == dest }
    return
  end

  _, type = @desttypes.find do |name, klass|
    klass.match?(dest)
  end

  if type.respond_to?(:suitable?) and not type.suitable?(dest)
    return
  end

  raise Puppet::DevError, _("Unknown destination type %{dest}") % { dest: dest} unless type

  begin
    if type.instance_method(:initialize).arity == 1
      @destinations[dest] = type.new(dest)
    else
      @destinations[dest] = type.new
    end
    flushqueue
    @destinations[dest]
  rescue => detail
    Puppet.log_exception(detail)

    # If this was our only destination, then add the console back in.
    if destinations.empty? && dest.intern != :console
      newdestination(:console)
    end

    # Re-raise (end exit Puppet) because we could not set up logging correctly.
    raise detail
  end
end

.newdesttype(name, options = {}, &block) ⇒ Object

Create a new destination type.


22
23
24
25
26
27
28
29
30
31
32
33
34
35
 
# File 'lib/puppet/util/log.rb', line 22

def self.newdesttype(name, options = {}, &block)

  dest = genclass(
    name,
    :parent     => Puppet::Util::Log::Destination,
    :prefix     => "Dest",
    :block      => block,
    :hash       => @desttypes,
    :attributes => options
  )
  dest.match(dest.name)

  dest
end

.newmessage(msg) ⇒ Object

Route the actual message. FIXME There are lots of things this method should do, like caching and 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.


191
192
193
194
195
196
197
198
199
200
201
202
 
# File 'lib/puppet/util/log.rb', line 191

def Log.newmessage(msg)
  return if @levels.index(msg.level) < @loglevel

  msg.message = coerce_string(msg.message)
  msg.source = coerce_string(msg.source)

  queuemessage(msg) if @destinations.length == 0

  @destinations.each do |name, dest|
    dest.handle(msg)
  end
end

.queuemessage(msg) ⇒ Object 


204
205
206
 
# File 'lib/puppet/util/log.rb', line 204

def Log.queuemessage(msg)
  @queued.push(msg)
end

.reopen ⇒ Object

Reopen all of our logs.


235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
 
# File 'lib/puppet/util/log.rb', line 235

def Log.reopen
  Puppet.notice _("Reopening log files")
  types = @destinations.keys
  @destinations.each { |type, dest|
    dest.close if dest.respond_to?(:close)
  }
  @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.setup_default
      Puppet.err detail.to_s
    end
  end
end

.sendlevel?(level) ⇒ Boolean

Returns:

  • (Boolean) 

230
231
232
 
# File 'lib/puppet/util/log.rb', line 230

def Log.sendlevel?(level)
  @levels.index(level) >= @loglevel
end

.setup_default ⇒ Object 


255
256
257
258
259
 
# File 'lib/puppet/util/log.rb', line 255

def self.setup_default
  Log.newdestination(
    (Puppet.features.syslog?   ? :syslog   :
    (Puppet.features.eventlog? ? :eventlog : Puppet[:puppetdlog])))
end

.validlevel?(level) ⇒ Boolean

Is the passed level a valid log level?

Returns:

  • (Boolean) 

262
263
264
 
# File 'lib/puppet/util/log.rb', line 262

def self.validlevel?(level)
  @levels.include?(level)
end

.with_destination(destination, &block) ⇒ Object 


163
164
165
166
167
168
169
170
171
172
173
174
 
# File 'lib/puppet/util/log.rb', line 163

def Log.with_destination(destination, &block)
  if @destinations.include?(destination)
    yield
  else
    newdestination(destination)
    begin
      yield
    ensure
      close(destination)
    end
  end
end

Instance Method Details

#initialize_from_hash(data) ⇒ Object 


322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
 
# File 'lib/puppet/util/log.rb', line 322

def initialize_from_hash(data)
  @level = data['level'].intern
  @message = data['message']
  @source = data['source']
  @tags = Puppet::Util::TagSet.new(data['tags'])
  @time = data['time']
  if @time.is_a? String
    @time = Time.parse(@time)
  end
  # Don't add these unless defined (preserve 3.x API as much as possible)
  %w(file line pos issue_code environment node backtrace).each do |name|
    value = data[name]
    next unless value
    send(name + '=', value)
  end
end

#to_data_hash ⇒ Object 


343
344
345
346
347
348
349
350
351
352
353
 
# File 'lib/puppet/util/log.rb', line 343

def to_data_hash
  {
    'level' => @level.to_s,
    'message' => to_s,
    'source' => @source,
    'tags' => @tags.to_a,
    'time' => @time.iso8601(9),
    'file' => @file,
    'line' => @line,
  }
end

#to_hash ⇒ Object 


339
340
341
 
# File 'lib/puppet/util/log.rb', line 339

def to_hash
  self.to_data_hash
end

#to_report ⇒ Object 


401
402
403
 
# File 'lib/puppet/util/log.rb', line 401

def to_report
  "#{time} #{source} (#{level}): #{self}"
end

#to_s ⇒ Object 


405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
 
# File 'lib/puppet/util/log.rb', line 405

def to_s
  msg = message

  # Issue based messages do not have details in the message. It
  # must be appended here
  unless issue_code.nil?
    msg = _("Could not parse for environment %{environment}: %{msg}") % { environment: environment, msg: msg } unless environment.nil?
    msg += Puppet::Util::Errors.error_location_with_space(file, line, pos)
    msg = _("%{msg} on node %{node}") % { msg: msg, node: node } unless node.nil?
    if @backtrace.is_a?(Array)
      msg += "\n"
      msg += @backtrace.join("\n")
    end
  end
  msg
end

#to_structured_hash ⇒ Object 


355
356
357
358
359
360
361
362
363
364
365
366
367
368
 
# File 'lib/puppet/util/log.rb', line 355

def to_structured_hash
  hash = {
    'level' => @level,
    'message' => @message,
    'source' => @source,
    'tags' => @tags.to_a,
    'time' => @time.iso8601(9),
  }
  %w(file line pos issue_code environment node backtrace).each do |name|
    attr_name = "@#{name}"
    hash[name] = instance_variable_get(attr_name) if instance_variable_defined?(attr_name)
  end
  hash
end