Class: EY::Backup::Logger

Inherits:
Object
  • Object
show all
Extended by:
Forwardable
Defined in:
lib/ey_backup/logger.rb

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(stdout = $stdout, stderr = $stderr) ⇒ Logger

Returns a new instance of Logger.



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# File 'lib/ey_backup/logger.rb', line 25

def initialize(stdout = $stdout, stderr = $stderr)
  @stdout, @stderr = stdout, stderr
  @verbose = false
end

Instance Attribute Details

#stderr ⇒ Object

Returns the value of attribute stderr.



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# File 'lib/ey_backup/logger.rb', line 14

def stderr
  @stderr
end

#stdout ⇒ Object

Returns the value of attribute stdout.



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# File 'lib/ey_backup/logger.rb', line 14

def stdout
  @stdout
end

Class Method Details

.quiet ⇒ Object 



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# File 'lib/ey_backup/logger.rb', line 21

def self.quiet
  new(StringIO.new)
end

Instance Method Details

#clear_alert?(db) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/ey_backup/logger.rb', line 92

def clear_alert?(db)
  begin
    File.delete(File.join(@status_path, "#{db}.alert"))
    true
  rescue Errno::ENOENT
    false
  end
end

#debug(msg) ⇒ Object 



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# File 'lib/ey_backup/logger.rb', line 105

def debug(msg)
  stdout.puts("#{Time.now} DEBUG: #{msg}")
end

#error(msg, db = nil) ⇒ Object 



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# File 'lib/ey_backup/logger.rb', line 81

def error(msg, db = nil)
  stdout.puts("#{Time.now} ERROR: #{msg}")
  set_alert(msg, db) unless db.nil?
  push_dashboard_alert("#{msg} Details at /var/log/eybackup.log.", "FAILURE", db)
end

#exception(type, msg) ⇒ Object 



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# File 'lib/ey_backup/logger.rb', line 101

def exception(type, msg)
  self.error(msg)
end

#info(msg) ⇒ Object 



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# File 'lib/ey_backup/logger.rb', line 46

def info(msg)
  stdout.puts "#{Time.now} #{msg}" 
end

#okay(db, size) ⇒ Object 



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# File 'lib/ey_backup/logger.rb', line 67

def okay(db, size)
  filepath = File.join(@status_path, "#{db}.sizes")
  %x{LOG=$(tail -n 100 #{filepath}); echo "$LOG" > #{filepath}} if File.exists?(filepath)
  %x{echo "#{Time.now()} #{size}" >> #{filepath}}
  msg = "Backup successful for '#{db}' after previous failure."
  push_dashboard_alert(msg, 'OKAY', db) if clear_alert?(db)
end

#push_dashboard_alert(message, alert_level, db = nil) ⇒ Object 



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# File 'lib/ey_backup/logger.rb', line 30

def push_dashboard_alert(message, alert_level, db = nil)
  message.gsub!("\n", '\n')
  message = Shellwords.escape(message).truncate(255)
  type="process-dbbackup"
  type = type + " #{db}" unless db.nil?
  full_txt= "Severity: #{alert_level}\n" \
          + "Time: #{Time.now.to_i}\n" \
          + "Type: #{type}\n" \
          + "Plugin: exec\n"
  full_txt = Shellwords.escape(full_txt)
  full_txt += "raw_message:\\ \\'#{message}\\'"
  alert_command = %Q(echo #{full_txt} | /engineyard/bin/ey-alert.rb 2>&1)
  verbose "Sending dashboard alert"
  system(alert_command)
end

#say(msg, newline = true) ⇒ Object 



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# File 'lib/ey_backup/logger.rb', line 63

def say(msg, newline = true)
  newline ? info(msg) : stdout.print(msg)
end

#set_alert(msg, db) ⇒ Object 



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# File 'lib/ey_backup/logger.rb', line 87

def set_alert(msg, db)
  fullPath = File.join(@status_path, "#{db}.alert")
  File.open(fullPath, 'a') { |file| file.puts "#{Time.now}: #{msg}"}
end

#set_log_path=(path) ⇒ Object 



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# File 'lib/ey_backup/logger.rb', line 58

def set_log_path=(path)
  @status_path = path
  FileUtils.mkdir_p(@status_path)
end

#set_verbose ⇒ Object 



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# File 'lib/ey_backup/logger.rb', line 54

def set_verbose()
  @verbose = true
end

#verbose(msg) ⇒ Object 



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# File 'lib/ey_backup/logger.rb', line 50

def verbose(msg)
  info(msg) if @verbose
end

#warn(msg, db = nil) ⇒ Object 



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# File 'lib/ey_backup/logger.rb', line 75

def warn(msg, db = nil)
  stdout.puts("#{Time.now} WARNING: #{msg}")
  set_alert(msg, db) unless db.nil?
  push_dashboard_alert(msg, "WARNING", db)
end