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'use strict'
const os = require('os')
const stdSerializers = require('pino-std-serializers')
const redaction = require('./lib/redaction')
const time = require('./lib/time')
const proto = require('./lib/proto')
const symbols = require('./lib/symbols')
const { assertDefaultLevelFound, mappings, genLsCache } = require('./lib/levels')
const {
createArgsNormalizer,
asChindings,
final,
stringify,
buildSafeSonicBoom
} = require('./lib/tools')
const { version, LOG_VERSION } = require('./lib/meta')
const {
chindingsSym,
redactFmtSym,
serializersSym,
timeSym,
timeSliceIndexSym,
streamSym,
stringifySym,
stringifiersSym,
setLevelSym,
endSym,
formatOptsSym,
messageKeySym,
nestedKeySym,
useLevelLabelsSym,
levelKeySym,
mixinSym,
useOnlyCustomLevelsSym
} = symbols
const { epochTime, nullTime } = time
const { pid } = process
const hostname = os.hostname()
const defaultErrorSerializer = stdSerializers.err
const defaultOptions = {
level: 'info',
useLevelLabels: false,
messageKey: 'msg',
nestedKey: null,
enabled: true,
prettyPrint: false,
base: { pid, hostname },
serializers: Object.assign(Object.create(null), {
err: defaultErrorSerializer
}),
timestamp: epochTime,
name: undefined,
redact: null,
customLevels: null,
levelKey: 'level',
useOnlyCustomLevels: false
}
const normalize = createArgsNormalizer(defaultOptions)
const serializers = Object.assign(Object.create(null), stdSerializers)
function pino (...args) {
const instance = {}
const { opts, stream } = normalize(instance, ...args)
const {
redact,
crlf,
serializers,
timestamp,
messageKey,
nestedKey,
base,
name,
level,
customLevels,
useLevelLabels,
levelKey,
mixin,
useOnlyCustomLevels
} = opts
const stringifiers = redact ? redaction(redact, stringify) : {}
const formatOpts = redact
? { stringify: stringifiers[redactFmtSym] }
: { stringify }
const end = ',"v":' + LOG_VERSION + '}' + (crlf ? '\r\n' : '\n')
const coreChindings = asChindings.bind(null, {
[chindingsSym]: '',
[serializersSym]: serializers,
[stringifiersSym]: stringifiers,
[stringifySym]: stringify
})
const chindings = base === null ? '' : (name === undefined)
? coreChindings(base) : coreChindings(Object.assign({}, base, { name }))
const time = (timestamp instanceof Function)
? timestamp : (timestamp ? epochTime : nullTime)
const timeSliceIndex = time().indexOf(':') + 1
if (useOnlyCustomLevels && !customLevels) throw Error('customLevels is required if useOnlyCustomLevels is set true')
if (mixin && typeof mixin !== 'function') throw Error(`Unknown mixin type "${typeof mixin}" - expected "function"`)
assertDefaultLevelFound(level, customLevels, useOnlyCustomLevels)
const levels = mappings(customLevels, useOnlyCustomLevels)
Object.assign(instance, {
levels,
[useLevelLabelsSym]: useLevelLabels,
[levelKeySym]: levelKey,
[useOnlyCustomLevelsSym]: useOnlyCustomLevels,
[streamSym]: stream,
[timeSym]: time,
[timeSliceIndexSym]: timeSliceIndex,
[stringifySym]: stringify,
[stringifiersSym]: stringifiers,
[endSym]: end,
[formatOptsSym]: formatOpts,
[messageKeySym]: messageKey,
[nestedKeySym]: nestedKey,
[serializersSym]: serializers,
[mixinSym]: mixin,
[chindingsSym]: chindings
})
Object.setPrototypeOf(instance, proto)
if (customLevels || useLevelLabels || levelKey !== defaultOptions.levelKey) genLsCache(instance)
instance[setLevelSym](level)
return instance
}
pino.extreme = (dest = process.stdout.fd) => buildSafeSonicBoom(dest, 4096, false)
pino.destination = (dest = process.stdout.fd) => buildSafeSonicBoom(dest, 0, true)
pino.final = final
pino.levels = mappings()
pino.stdSerializers = serializers
pino.stdTimeFunctions = Object.assign({}, time)
pino.symbols = symbols
pino.version = version
pino.LOG_VERSION = LOG_VERSION
module.exports = pino