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Name	Size	Permission	Date
completion	[ DIR ]	drwxr-xr-x	2025-04-07 20:36
audit-error.js	1.02 KB	-rw-r--r--	2024-04-10 09:40
auth.js	2.8 KB	-rw-r--r--	2023-02-19 06:00
cmd-list.js	2.89 KB	-rw-r--r--	2023-10-24 06:00
completion.fish	1.56 KB	-rw-r--r--	2023-06-20 17:20
completion.sh	1.85 KB	-rwxr-xr-x	2022-10-11 10:59
did-you-mean.js	1.45 KB	-rw-r--r--	2023-08-09 13:29
display.js	6.48 KB	-rw-r--r--	2024-02-19 06:00
error-message.js	13.53 KB	-rw-r--r--	2024-04-10 09:40
exit-handler.js	6.78 KB	-rw-r--r--	2024-04-10 09:40
explain-dep.js	3.5 KB	-rw-r--r--	2023-06-20 17:20
explain-eresolve.js	2.56 KB	-rw-r--r--	2023-08-09 13:29
format-bytes.js	629 B	-rw-r--r--	2022-10-11 10:59
format-search-stream.js	3.82 KB	-rw-r--r--	2024-03-03 10:00
get-identity.js	802 B	-rw-r--r--	2022-12-07 06:00
is-windows.js	233 B	-rw-r--r--	2022-10-11 10:59
log-file.js	7.1 KB	-rw-r--r--	2024-02-19 06:00
log-shim.js	1.68 KB	-rw-r--r--	2022-10-11 10:59
npm-usage.js	2.02 KB	-rw-r--r--	2023-08-09 13:29
open-url-prompt.js	1.4 KB	-rw-r--r--	2024-02-19 06:00
open-url.js	1.08 KB	-rw-r--r--	2023-11-30 06:00
otplease.js	1.23 KB	-rw-r--r--	2022-12-07 06:00
ping.js	252 B	-rw-r--r--	2022-10-11 10:59
pulse-till-done.js	412 B	-rw-r--r--	2022-10-11 10:59
queryable.js	9.43 KB	-rw-r--r--	2023-11-05 06:00
read-user-info.js	2 KB	-rw-r--r--	2024-04-10 09:40
reify-finish.js	876 B	-rw-r--r--	2022-10-11 10:59
reify-output.js	6.02 KB	-rw-r--r--	2024-03-03 10:00
replace-info.js	807 B	-rw-r--r--	2024-04-10 09:40
sbom-cyclonedx.js	5.2 KB	-rw-r--r--	2023-11-30 06:00
sbom-spdx.js	4.58 KB	-rw-r--r--	2024-02-19 06:00
tar.js	3.9 KB	-rw-r--r--	2022-12-07 06:00
timers.js	2.73 KB	-rw-r--r--	2022-12-07 06:00
update-notifier.js	4.08 KB	-rw-r--r--	2024-03-03 10:00
validate-lockfile.js	1023 B	-rw-r--r--	2022-10-11 10:59
web-auth.js	558 B	-rw-r--r--	2022-10-11 10:59

Rename

const EE = require('events')
const fs = require('fs')
const log = require('./log-shim')

// This is an event emiiter but on/off
// only listen on a single internal event that gets
// emitted whenever a timer ends
class Timers extends EE {
  file = null

#unfinished = new Map()
  #finished = {}
  #onTimeEnd = Symbol('onTimeEnd')
  #initialListener = null
  #initialTimer = null

constructor ({ listener = null, start = 'npm' } = {}) {
    super()
    this.#initialListener = listener
    this.#initialTimer = start
    this.#init()
  }

get unfinished () {
    return this.#unfinished
  }

get finished () {
    return this.#finished
  }

#init () {
    this.on()
    if (this.#initialListener) {
      this.on(this.#initialListener)
    }
    process.emit('time', this.#initialTimer)
    this.started = this.#unfinished.get(this.#initialTimer)
  }

on (listener) {
    if (listener) {
      super.on(this.#onTimeEnd, listener)
    } else {
      process.on('time', this.#timeListener)
      process.on('timeEnd', this.#timeEndListener)
    }
  }

off (listener) {
    if (listener) {
      super.off(this.#onTimeEnd, listener)
    } else {
      this.removeAllListeners(this.#onTimeEnd)
      process.off('time', this.#timeListener)
      process.off('timeEnd', this.#timeEndListener)
    }
  }

time (name, fn) {
    process.emit('time', name)
    const end = () => process.emit('timeEnd', name)
    if (typeof fn === 'function') {
      const res = fn()
      return res && res.finally ? res.finally(end) : (end(), res)
    }
    return end
  }

load ({ path } = {}) {
    if (path) {
      this.file = `${path}timing.json`
    }
  }

writeFile (metadata) {
    if (!this.file) {
      return
    }

try {
      const globalStart = this.started
      const globalEnd = this.#finished.npm || Date.now()
      const content = {
        metadata,
        timers: this.#finished,
        // add any unfinished timers with their relative start/end
        unfinishedTimers: [...this.#unfinished.entries()].reduce((acc, [name, start]) => {
          acc[name] = [start - globalStart, globalEnd - globalStart]
          return acc
        }, {}),
      }
      fs.writeFileSync(this.file, JSON.stringify(content) + '\n')
    } catch (e) {
      this.file = null
      log.warn('timing', `could not write timing file: ${e}`)
    }
  }

#timeListener = (name) => {
    this.#unfinished.set(name, Date.now())
  }

#timeEndListener = (name) => {
    if (this.#unfinished.has(name)) {
      const ms = Date.now() - this.#unfinished.get(name)
      this.#finished[name] = ms
      this.#unfinished.delete(name)
      this.emit(this.#onTimeEnd, name, ms)
    } else {
      log.silly('timing', "Tried to end timer that doesn't exist:", name)
    }
  }
}

module.exports = Timers