/usr/lib/nodejs/npmlog/log.js is in node-npmlog 0.0.4-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 | var EE = require('events').EventEmitter
var log = exports = module.exports = new EE
var util = require('util')
var ansi = require('ansi')
log.cursor = ansi(process.stderr)
log.stream = process.stderr
// by default, let ansi decide based on tty-ness.
var colorEnabled = undefined
log.enableColor = function () {
colorEnabled = true
this.cursor.enabled = true
}
log.disableColor = function () {
colorEnabled = false
this.cursor.enabled = false
}
// default level
log.level = 'info'
// temporarily stop emitting, but don't drop
log.pause = function () {
this._paused = true
}
log.resume = function () {
if (!this._paused) return
this._paused = false
var b = this._buffer
this._buffer = []
b.forEach(function (m) {
this.emitLog(m)
}, this)
}
log._buffer = []
var id = 0
log.record = []
log.maxRecordSize = 10000
log.log = function (lvl, prefix, message) {
var l = this.levels[lvl]
if (l === undefined) {
return this.emit('error', new Error(util.format(
'Undefined log level: %j', lvl)))
}
var a = new Array(arguments.length - 2)
var stack = null
for (var i = 2; i < arguments.length; i ++) {
var arg = a[i-2] = arguments[i]
// resolve stack traces to a plain string.
if (typeof arg === 'object' && arg &&
(arg instanceof Error) && arg.stack) {
arg.stack = stack = arg.stack + ''
}
}
if (stack) a.unshift(stack + '\n')
message = util.format.apply(util, a)
var m = { id: id++,
level: lvl,
prefix: String(prefix || ''),
message: message,
messageRaw: a }
this.emit('log', m)
this.emit('log.' + lvl, m)
if (m.prefix) this.emit(m.prefix, m)
this.record.push(m)
var mrs = this.maxRecordSize
var n = this.record.length - mrs
if (n > mrs / 10) {
var newSize = Math.floor(mrs * 0.9)
this.record = this.record.slice(-1 * newSize)
}
this.emitLog(m)
}.bind(log)
log.emitLog = function (m) {
if (this._paused) {
this._buffer.push(m)
return
}
var l = this.levels[m.level]
if (l === undefined) return
if (l < this.levels[this.level]) return
if (l > 0 && !isFinite(l)) return
var style = log.style[m.level]
var disp = log.disp[m.level] || m.level
m.message.split(/\r?\n/).forEach(function (line) {
if (this.heading) {
this.write(this.heading, this.headingStyle)
this.write(' ')
}
this.write(disp, log.style[m.level])
var p = m.prefix || ''
if (p) this.write(' ')
this.write(p, this.prefixStyle)
this.write(' ' + line + '\n')
}, this)
}
log.write = function (msg, style) {
if (!this.cursor) return
if (this.stream !== this.cursor.stream) {
this.cursor = ansi(this.stream, { enabled: colorEnabled })
}
style = style || {}
if (style.fg) this.cursor.fg[style.fg]()
if (style.bg) this.cursor.bg[style.bg]()
if (style.bold) this.cursor.bold()
if (style.underline) this.cursor.underline()
if (style.inverse) this.cursor.inverse()
if (style.beep) this.cursor.beep()
this.cursor.write(msg).reset()
}
log.addLevel = function (lvl, n, style, disp) {
if (!disp) disp = lvl
this.levels[lvl] = n
this.style[lvl] = style
if (!this[lvl]) this[lvl] = function () {
var a = new Array(arguments.length + 1)
a[0] = lvl
for (var i = 0; i < arguments.length; i ++) {
a[i + 1] = arguments[i]
}
return this.log.apply(this, a)
}.bind(this)
this.disp[lvl] = disp
}
log.prefixStyle = { fg: 'magenta' }
log.headingStyle = { fg: 'white', bg: 'black' }
log.style = {}
log.levels = {}
log.disp = {}
log.addLevel('silly', -Infinity, { inverse: true }, 'sill')
log.addLevel('verbose', 1000, { fg: 'blue', bg: 'black' }, 'verb')
log.addLevel('info', 2000, { fg: 'green' })
log.addLevel('http', 3000, { fg: 'green', bg: 'black' })
log.addLevel('warn', 4000, { fg: 'black', bg: 'yellow' }, 'WARN')
log.addLevel('error', 5000, { fg: 'red', bg: 'black' }, 'ERR!')
log.addLevel('silent', Infinity)
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