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'use strict'
exports.start = startMetrics
exports.stop = stopMetrics
exports.save = saveMetrics
exports.send = sendMetrics
var fs = require('fs')
var path = require('path')
var npm = require('../npm.js')
var uuid = require('uuid')
var inMetrics = false
function startMetrics () {
if (inMetrics) return
// loaded on demand to avoid any recursive deps when `./metrics-launch` requires us.
var metricsLaunch = require('./metrics-launch.js')
npm.metricsProcess = metricsLaunch()
}
function stopMetrics () {
if (inMetrics) return
if (npm.metricsProcess) npm.metricsProcess.kill('SIGKILL')
}
function saveMetrics (itWorked) {
if (inMetrics) return
// If the metrics reporter hasn't managed to PUT yet then kill it so that it doesn't
// step on our updating the anonymous-cli-metrics json
stopMetrics()
var metricsFile = path.join(npm.config.get('cache'), 'anonymous-cli-metrics.json')
var metrics
try {
metrics = JSON.parse(fs.readFileSync(metricsFile))
metrics.metrics.to = new Date().toISOString()
if (itWorked) {
++metrics.metrics.successfulInstalls
} else {
++metrics.metrics.failedInstalls
}
} catch (ex) {
metrics = {
metricId: uuid.v4(),
metrics: {
from: new Date().toISOString(),
to: new Date().toISOString(),
successfulInstalls: itWorked ? 1 : 0,
failedInstalls: itWorked ? 0 : 1
}
}
}
try {
fs.writeFileSync(metricsFile, JSON.stringify(metrics))
} catch (ex) {
// we couldn't write the error metrics file, um, well, oh well.
}
}
function sendMetrics (metricsFile, metricsRegistry) {
inMetrics = true
var cliMetrics = JSON.parse(fs.readFileSync(metricsFile))
npm.load({}, function (err) {
if (err) return
npm.registry.config.retry.retries = 0
npm.registry.sendAnonymousCLIMetrics(metricsRegistry, cliMetrics, function (err) {
if (err) {
fs.writeFileSync(path.join(path.dirname(metricsFile), 'last-send-metrics-error.txt'), err.stack)
} else {
fs.unlinkSync(metricsFile)
}
})
})
}