Class: Chemicalml::Logger

Inherits:
Logger
  • Object
show all
Defined in:
lib/chemicalml/logger.rb

Overview

Logger used across the CLI and API. Wraps Ruby's ::Logger and can bridge to Thor's say / say_error when running under a Thor dispatcher — that gives coloured output on the terminal while plain Logger.new($stderr) works for library callers.

Severity routing under Thor:

debug → suppressed (set level manually if needed)
info  → say (green-ish, $stdout)
warn  → say_error with :yellow ($stderr)
error → say_error with :red   ($stderr)
fatal → say_error with :red   ($stderr)

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Instance Attribute Details

#thor_shell ⇒ Object

Returns the value of attribute thor_shell.



18
19
20
 
# File 'lib/chemicalml/logger.rb', line 18

def thor_shell
  @thor_shell
end

Class Method Details

.default ⇒ Object

Convenience: create a default logger that writes to $stderr at INFO level. Used when no logger is explicitly provided.



43
44
45
 
# File 'lib/chemicalml/logger.rb', line 43

def self.default
  new($stderr).tap { |l| l.level = INFO }
end

Instance Method Details

#add(severity, message = nil, progname = nil) ⇒ Object 



26
27
28
29
30
31
32
33
34
35
36
37
38
39
 
# File 'lib/chemicalml/logger.rb', line 26

def add(severity, message = nil, progname = nil)
  return super unless thor_shell
  return true if severity < level

  msg = message || progname
  case severity
  when ERROR, FATAL
    thor_shell.say_error(msg.to_s, :red)
  when WARN
    thor_shell.say_error(msg.to_s, :yellow)
  else
    thor_shell.say(msg.to_s)
  end
end