How to use @nearform/clinic-common - 10 common examples

'use strict'
const fs = require('fs')
const inspectpoint = require('inspectpoint')
const analysis = require('../analysis/index.js')
const getLoggingPaths = require('@nearform/clinic-common').getLoggingPaths('bubbleprof')
const SystemInfoDecoder = require('../format/system-info-decoder.js')
const StackTraceDecoder = require('../format/stack-trace-decoder.js')
const TraceEventDecoder = require('../format/trace-event-decoder.js')

// Load data
const paths = getLoggingPaths({ path: process.argv[2] })
const systemInfoReader = fs.createReadStream(paths['/systeminfo'])
  .pipe(new SystemInfoDecoder())
const stackTraceReader = fs.createReadStream(paths['/stacktrace'])
  .pipe(new StackTraceDecoder())
const traceEventReader = fs.createReadStream(paths['/traceevent'])
  .pipe(new TraceEventDecoder())

// Print data
analysis(systemInfoReader, stackTraceReader, traceEventReader)
  .pipe(inspectpoint({ depth: null, colors: true }))

'use strict'

const events = require('events')
const fs = require('fs')
const os = require('os')
const path = require('path')
const pump = require('pump')
const pumpify = require('pumpify')
const stream = require('./lib/destroyable-stream')
const { spawn } = require('child_process')
const Analysis = require('./analysis/index.js')
const Stringify = require('streaming-json-stringify')
const streamTemplate = require('stream-template')
const joinTrace = require('node-trace-log-join')
const getLoggingPaths = require('@nearform/clinic-common').getLoggingPaths('doctor')
const SystemInfoDecoder = require('./format/system-info-decoder.js')
const TraceEventDecoder = require('./format/trace-event-decoder.js')
const ProcessStatDecoder = require('./format/process-stat-decoder.js')
const RenderRecommendations = require('./recommendations/index.js')
const minifyStream = require('minify-stream')
const v8 = require('v8')
const HEAP_MAX = v8.getHeapStatistics().heap_size_limit
const buildJs = require('@nearform/clinic-common/scripts/build-js')
const buildCss = require('@nearform/clinic-common/scripts/build-css')
const mainTemplate = require('@nearform/clinic-common/templates/main')

class ClinicDoctor extends events.EventEmitter {
  constructor (settings = {}) {
    super()

    // define default parameters

'use strict'

const fs = require('fs')
const makeDir = require('mkdirp')
const asyncHooks = require('async_hooks')
const stackTrace = require('../collect/stack-trace.js')
const systemInfo = require('../collect/system-info.js')
const StackTraceEncoder = require('../format/stack-trace-encoder.js')
const getLoggingPaths = require('@nearform/clinic-common').getLoggingPaths('bubbleprof')

// create dirname
const paths = getLoggingPaths({
  path: process.env.NODE_CLINIC_BUBBLEPROF_DATA_PATH,
  identifier: process.pid
})
makeDir.sync(paths['/'])

// write system file
fs.writeFileSync(paths['/systeminfo'], JSON.stringify(systemInfo(), null, 2))

// setup encoded states file
const encoder = new StackTraceEncoder()
const out = encoder.pipe(
  fs.createWriteStream(paths['/stacktrace'], {
    // Open log file synchronously to ensure that that .write() only

'use strict'

const events = require('events')
const fs = require('fs')
const os = require('os')
const path = require('path')
const pump = require('pump')
const pumpify = require('pumpify')
const stream = require('./lib/destroyable-stream')
const { spawn } = require('child_process')
const Analysis = require('./analysis/index.js')
const Stringify = require('streaming-json-stringify')
const streamTemplate = require('stream-template')
const joinTrace = require('node-trace-log-join')
const getLoggingPaths = require('@nearform/clinic-common').getLoggingPaths('doctor')
const SystemInfoDecoder = require('./format/system-info-decoder.js')
const TraceEventDecoder = require('./format/trace-event-decoder.js')
const ProcessStatDecoder = require('./format/process-stat-decoder.js')
const RenderRecommendations = require('./recommendations/index.js')
const minifyStream = require('minify-stream')
const v8 = require('v8')
const HEAP_MAX = v8.getHeapStatistics().heap_size_limit
const buildJs = require('@nearform/clinic-common/scripts/build-js')
const buildCss = require('@nearform/clinic-common/scripts/build-css')
const mainTemplate = require('@nearform/clinic-common/templates/main')

class ClinicDoctor extends events.EventEmitter {
  constructor (settings = {}) {
    super()

    // define default parameters

'use strict'

const fs = require('fs')
const makeDir = require('mkdirp')
const systemInfo = require('../collect/system-info.js')
const ProcessStat = require('../collect/process-stat.js')
const getLoggingPaths = require('@nearform/clinic-common').getLoggingPaths('doctor')
const ProcessStatEncoder = require('../format/process-stat-encoder.js')

// create encoding files and directory
const paths = getLoggingPaths({ path: process.env.NODE_CLINIC_DOCTOR_DATA_PATH, identifier: process.pid })

makeDir.sync(paths['/'])

// write system file
fs.writeFileSync(paths['/systeminfo'], JSON.stringify(systemInfo(), null, 2))

const processStatEncoder = new ProcessStatEncoder()
const out = processStatEncoder.pipe(fs.createWriteStream(paths['/processstat']))

// sample every 10ms
const processStat = new ProcessStat(parseInt(
  process.env.NODE_CLINIC_DOCTOR_SAMPLE_INTERVAL, 10

'use strict'
const fs = require('fs')
const analysis = require('../analysis/index.js')
const getLoggingPaths = require('@nearform/clinic-common').getLoggingPaths('bubbleprof')
const SystemInfoDecoder = require('../format/system-info-decoder.js')
const StackTraceDecoder = require('../format/stack-trace-decoder.js')
const TraceEventDecoder = require('../format/trace-event-decoder.js')
const ExtractAggregateNodes = require('./extract-aggregate-nodes.js')
const AggregateNodesToDprof = require('./aggregate-nodes-to-dprof.js')

// Load data
const paths = getLoggingPaths({ path: process.argv[2] })
const systemInfoReader = fs.createReadStream(paths['/systeminfo'])
  .pipe(new SystemInfoDecoder())
const stackTraceReader = fs.createReadStream(paths['/stacktrace'])
  .pipe(new StackTraceDecoder())
const traceEventReader = fs.createReadStream(paths['/traceevent'])
  .pipe(new TraceEventDecoder())

// Print dprof file

updateTooltip ({ msg, d3TargetElement, targetRect, outerRect = document.body.getBoundingClientRect(), offset, pointerCoords, verticalAlign = 'bottom' }) {
    // returns if the tooltip is hidden
    if (this.isHidden) return

    const msgHtmlNode = toHtml(msg, 'tooltip-default-message')

    this.d3TooltipInner.classed('top bottom', false)
    this.d3TooltipInner.classed(verticalAlign, true)

    let {
      x,
      y,
      width,
      height
    } = targetRect || d3TargetElement.node().getBoundingClientRect()

    if (offset) {
      x += offset.x || 0
      y += offset.y || 0
      width += offset.width || 0
      height += offset.height || 0

initializeElements () {
    super.initializeElements()

    this.spinner = spinner.attachTo(document.querySelector('#side-bar'))
    this.d3Element.classed('lookup', true)

    this.d3LookupInput = this.d3ContentWrapper.append('input')
      .classed('lookup-input', true)
      .classed('default-text', true)
      .property('value', this.defaultText)

    this.d3Suggestions = this.d3ContentWrapper.append('ul')
      .classed('lookup-suggestions', true)
      .classed('hidden', true)

    // Look up autocomplete suggestions when user has stopped typing
    const debouncedChange = debounce(() => {
      // Arrow functions around methods required to preserve `this` context
      this.onInput()
    }, 200)

'use strict'

const fs = require('fs')
const async = require('async')
const rimraf = require('rimraf')
const events = require('events')
const ClinicDoctor = require('../index.js')
const getLoggingPaths = require('@nearform/clinic-common').getLoggingPaths('doctor')
const SystemInfoDecoder = require('../format/system-info-decoder.js')
const TraceEventDecoder = require('../format/trace-event-decoder.js')
const ProcessStatDecoder = require('../format/process-stat-decoder.js')

class CollectAndRead extends events.EventEmitter {
  constructor (options, ...args) {
    super()
    const self = this
    const tool = this.tool = new ClinicDoctor(options)

    tool.collect([process.execPath, ...args], function (err, dirname) {
      self.files = getLoggingPaths({ path: dirname })
      if (err) return self.emit('error', err)

      self.noError = true

'use strict'

const fs = require('fs')
const http = require('http')
const path = require('path')
const async = require('async')
const rimraf = require('rimraf')
const events = require('events')
const endpoint = require('endpoint')
const xsock = require('cross-platform-sock')
const getLoggingPaths = require('@nearform/clinic-common').getLoggingPaths('bubbleprof')
const ClinicBubbleprof = require('../index.js')
const SystemInfoDecoder = require('../format/system-info-decoder.js')
const StackTraceDecoder = require('../format/stack-trace-decoder.js')
const TraceEventDecoder = require('../format/trace-event-decoder.js')

const sock = xsock(path.join(__dirname, 'test-server.sock'))

function waitForFile (filepath, timeout, callback) {
  if (process.platform === 'win32') return setTimeout(callback, timeout)

  fs.access(filepath, function (err) {
    if (!err) return callback(null)
    if (timeout <= 0) {
      return callback(new Error('server did not listen within timeout'))
    }