remove obsolete option message_format

Author: jsvd

CHANGELOG.md

@@ -1,3 +1,6 @@
+## 4.1.0
+ - Remove obsolete option `message_format`
+
 ## 4.0.1
  - Move one log message from info to debug to avoid noise
 

lib/logstash/outputs/file.rb

@@ -37,8 +37,6 @@ class LogStash::Outputs::File < LogStash::Outputs::Base
  # E.g: `/%{myfield}/`, `/test-%{myfield}/` are not valid paths
  config :path, :validate => :string, :required => true
 
- config :message_format, :validate => :string, :obsolete => "You can achieve the same behavior with the 'line' codec"
-
  # Flush interval (in seconds) for flushing writes to log files.
  # 0 will flush on every message.
  config :flush_interval, :validate => :number, :default => 2
@@ -92,11 +90,6 @@ def register
  @last_stale_cleanup_cycle = now
  @flush_interval = @flush_interval.to_i
  @stale_cleanup_interval = 10
-
- if @message_format
- @codec = LogStash::Plugin.lookup("codec", "line").new
- @codec.format = @message_format
- end
  end # def register
 
  private

logstash-output-file.gemspec

@@ -1,7 +1,7 @@
 Gem::Specification.new do |s|
 
  s.name = 'logstash-output-file'
- s.version = '4.0.2'
+ s.version = '4.1.0'
  s.licenses = ['Apache License (2.0)']
  s.summary = "This output will write events to files on disk"
  s.description = "This gem is a Logstash plugin required to be installed on top of the Logstash core pipeline using $LS_HOME/bin/logstash-plugin install gemname. This gem is not a stand-alone program"