47 lines
1.0 KiB
Ruby
47 lines
1.0 KiB
Ruby
class Slogger::Tailer < Rails::Rack::LogTailer
|
|
def initialize app, log = nil
|
|
@app = app
|
|
log ||= Rails.root.join( 'log', Rails.env).to_s.gsub('%', '%%') + '.%Y-%m-%d.%$.log'
|
|
@path = Pathname.new( log).cleanpath.to_s
|
|
@files = {}
|
|
end
|
|
|
|
def dirscan path, time
|
|
path = path.gsub /(%.)/ do |f|
|
|
case f
|
|
when '%%' then '%%'
|
|
when '%Y' then yesterday.year
|
|
when '%m' then yesterday.month
|
|
when '%d' then yesterday.day
|
|
when /%./ then '*'
|
|
end
|
|
end
|
|
preday = time - 1.day
|
|
Dir[ files].each do |file|
|
|
@files[file] ||= [::File.open( file, 'r'), 0, preday]
|
|
end
|
|
end
|
|
|
|
def tail!
|
|
yesterday, today = 1.day.ago.beginning_of_day, Time.now.beginning_of_day
|
|
dirscan @path, yesterday
|
|
dirscan @path, today
|
|
|
|
@files.each do |fn, meta|
|
|
file = meta[0]
|
|
file.seek meta[1]
|
|
unless file.eof?
|
|
contents = file.read
|
|
cursor = file.tell
|
|
$stdout.print contents
|
|
end
|
|
meta[2] = today if meta[1] == cursor
|
|
meta[1] = cursor
|
|
if yesterday > meta[2]
|
|
meta[0].close
|
|
@files.delete fn
|
|
end
|
|
end
|
|
end
|
|
end
|