Overview

CherriLog is perhaps the simplest and most useful log library for all dart program

Features

• Log messages directly by calling static methods
• Nice stacktrace formatter
• Custom log levels support
• Custom loggers:
  • CherriConsole Direct output to console with different colors
  • CherriFile Direct output to file

TODOs

• Log to file (Full Platform Path Support)
• Highly customizable log format

Usage

1. Add the dependency to your pubspec.yaml file
   Recommend to use command line:

   With Flutter

   flutter pub add cherrilog
   

   With Dart

   dart pub add cherrilog
   

2. Import library

   import 'package:cherrilog/cherrilog.dart';
   

3. Initialize cherrilog

   CherriLog.init(
     options: CherriOptions()
       ..logLevelRange = CherriLogLevelRanges.all
       ..useBuffer = false,
   ).logTo(CherriConsole()); // Use `CherriFile()` instead of `CherriConsole` if you want to log to file system
   

4. Call log methods

   debug('This is a debug message');
   info('This is an info message');
   warning('This is a warning message');
   error('Something went wrong');
   fatal('Oh oh :(');
   

Log levels

Cherrilog provides a CherriLogLevel class to support custom level, and below is the default instances:

• CherriLogLevel.fatal: Fatal errors
• CherriLogLevel.error: Errors
• CherriLogLevel.warning: Warnings
• CherriLogLevel.info: Information messages
• CherriLogLevel.debug: Debug messages

And you will also see nether and upperBond, these two instances is to help with comparison, don't use them directly.

You can find some predefined log level ranges in CherriLogLevelRanges class.

Timestamp Patterns

We offer some preset timestamp formats with in formatter/timestamp.dart.

You can also use your own format.

Output

Note: The colors may vary depending on the terminal. This is probably the result on VSCode. Reference

Contributors

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