ololog
Version:
Logging. Colors. Terminals & browsers. Show call locations. Pretty prints objects, Errors, anything!
34 lines (23 loc) • 1.27 kB
JavaScript
/* ------------------------------------------------------------------------ */
// NB: these packages are part of Ololog, no need to install them separately
const bullet = require ('string.bullet')
const { cyan, yellow, red, dim } = require ('ansicolor')
/* ------------------------------------------------------------------------ */
const log = require ('ololog').configure ({
locate: false,
time: true,
tag: (lines, {
level = '',
levelColor = { 'info': cyan, 'warn': yellow, 'error': red.bright.inverse, 'debug':blue },
clusterId
}) => {
const clusterStr = clusterId ? ('CLUSTER[' + (clusterId + '').padStart (2, '0') + ']') : ''
const levelStr = level && (levelColor[level] || (s => s)) (level.toUpperCase ())
return bullet (dim (clusterStr.padStart (10)) + '\t' + levelStr.padStart (6) + '\t', lines)
}
})
/* ------------------------------------------------------------------------ */
log.configure ({ tag: { clusterId: 1 } }) ('foo')
log.configure ({ tag: { clusterId: 3 } }).info ('bar')
log.configure ({ tag: { clusterId: 27 } }).error ('a multiline\nerror\nmessage')
/* ------------------------------------------------------------------------ */