mirror of
https://github.com/rails/rails.git
synced 2022-11-09 12:12:34 -05:00
84a13e019e
It was being used by Rails for show the development logs but since Rails 4 it is not being used anymore on the framework. This class seems to be private but it were part of the public API we are deprecating before removing.
38 lines
839 B
Ruby
38 lines
839 B
Ruby
require 'active_support/deprecation'
|
|
|
|
module Rails
|
|
module Rack
|
|
class LogTailer
|
|
def initialize(app, log = nil)
|
|
ActiveSupport::Deprecation.warn "LogTailer is deprecated and will be removed on Rails 5"
|
|
|
|
@app = app
|
|
|
|
path = Pathname.new(log || "#{::File.expand_path(Rails.root)}/log/#{Rails.env}.log").cleanpath
|
|
|
|
@cursor = @file = nil
|
|
if ::File.exist?(path)
|
|
@cursor = ::File.size(path)
|
|
@file = ::File.open(path, 'r')
|
|
end
|
|
end
|
|
|
|
def call(env)
|
|
response = @app.call(env)
|
|
tail!
|
|
response
|
|
end
|
|
|
|
def tail!
|
|
return unless @cursor
|
|
@file.seek @cursor
|
|
|
|
unless @file.eof?
|
|
contents = @file.read
|
|
@cursor = @file.tell
|
|
$stdout.print contents
|
|
end
|
|
end
|
|
end
|
|
end
|
|
end
|