terminal-logger

Terminal-logger prints the message to the console.

All logs are done against STDERR, letting you stdout for meaningfull value and redirection, should you need to generate output this way.

• Customize colorful status
• Single-line update
• table supports

Usage

logger  = require('terminal-logger')('test')
//change the logging level.
logger.level = 'info'

logger
  .write()
  .status.info('Doing something')
  .status('info','Doing something same')
  .status.force('Forcing filepath %s', 'some path')
  .status.conflict('on %s', 'model.js')
  .status.ok('good')
  .status.error('sth error')
  .status.create(logger.table([['a:', 213], ['b:', 111]]))
  .write()
  .tick('<-This is ok')
  .cross('<-this is a wrong cross flag')

logger.log({
  message: '${name} - ${status}: Hi here ${title}'
  , title: 'Today Title'
  , status: 'ok'
})

the result:

Single-line update:

log = require('terminal-logger/lib/single-line')('test')
log.level = 'info'
dash = '>'
singleLineLog = ->
   dash = dash.replace('>', '->')
   log.status("info", "update:", dash)
   dash = '>' if dash.length > 60
   setTimeout(singleLineLog, 500)
singleLineLog()

the result:

API

TODO

Changes

v0.2.0

• add the emergency/alert/critical/error/warning/notice/info/debug/trace(message[, context], args...) methods:
  • these are same as logger.status[xxx]. (v0.2.3)
• add the logging level supports

• broken: remove the predefined status as its logging method utility

• add status(aStatus, aMessage, ...) and status[status](aMessage,...) methods
• add customizable colors and statusLevels
  • the default colors(map the status or level to color):
    • skip: 'magenta'
    • force: 'yellow'
    • create: 'green'
    • invoke: 'bold'
    • conflict: 'red'
    • identical: 'cyan'
    • ok: 'green'
    • emergency: ['red', 'bold']
    • alert: 'red'
    • critical: 'red'
    • error: 'red'
    • warning: 'yellow'
    • notice: 'gray'
    • info: 'gray'
    • debug: 'blue'
    • trace: 'blue'
    • '✔': 'green'
    • '✗': 'red'
    • name: 'blue' # it's NOT the status, it's just the logger name's color.
  • the default statusLevels(map the status to logging level):
    • skip: 'warning'
    • force: 'warning'
    • create: 'notice'
    • invoke: 'notice'
    • conflict: 'error'
    • identical: 'error'
    • ok: 'notice'
    • '✔': 'notice'
    • '✗': 'error'

License

MIT