logger

@percy/logger

Common winston logger used throughout the Percy CLI.

Usage

import log from '@percy/logger'

log.info('info message')
log.error('error message')
log.warn('warning message')
log.debug('debug message')

#loglevel([level][, flags])

Sets or retrieves the log level of the console transport. If the second argument is provided, level is treated as a fallback when all logging flags are false. When no arguments are provided, the method will return the current log level of the console transport.

log.loglevel('info', { verbose: true })
log.loglevel() === 'debug'

log.loglevel('info', { quiet: true })
log.loglevel() === 'warn'

log.loglevel('info', { silent: true })
log.loglevel() === 'silent'

log.loglevel('info')
log.loglevel() === 'info'

#error(errorOrMessage)

Patched #error() method that handles Error instance's and similar error objects. When #loglevel() is equal to debug, the Error instance's stack trace is logged.

log.loglevel('debug')
log.error(new Error('example'))
// [percy] Error: example
//   at example:2:10
//   ...

#query(options)

Patched #query() method that is promisified and allows a filter function option.

let logs = await log.query({
  filter: log => true
  // ...other query options (see winston docs)
})