JezK

Edit File: nyc

#!/usr/bin/env node
'use strict'

const configUtil = require('../lib/config-util')
const { cliWrapper, suppressEPIPE } = require('../lib/commands/helpers')
const foreground = require('foreground-child')
const resolveFrom = require('resolve-from')
const NYC = require('../index.js')

// parse configuration and command-line arguments;
// we keep these values in a few different forms,
// used in the various execution contexts of nyc:
// reporting, instrumenting subprocesses, etc.

async function main () {
  const { argv, childArgs, yargs } = await configUtil()

if (['check-coverage', 'report', 'instrument', 'merge'].includes(argv._[0])) {
    // look in lib/commands for logic.
    return
  }

if (argv._.length === 0) {
    // I don't have a clue what you're doing.
    process.exitCode = 1
    yargs.showHelp()
    return
  }

// if instrument is set to false,
  // enable a noop instrumenter.
  if (!argv.instrument) argv.instrumenter = './lib/instrumenters/noop'
  else argv.instrumenter = './lib/instrumenters/istanbul'

var nyc = (new NYC(argv))
  if (argv.clean) {
    await nyc.reset()
  } else {
    await nyc.createTempDirectory()
  }

const env = {
    NYC_CONFIG: JSON.stringify(argv),
    NYC_CWD: process.cwd()
  }

/* istanbul ignore else */
  if (argv['babel-cache'] === false) {
    // babel's cache interferes with some configurations, so is
    // disabled by default. opt in by setting babel-cache=true.
    env.BABEL_DISABLE_CACHE = process.env.BABEL_DISABLE_CACHE = '1'
  }

if (!argv.useSpawnWrap) {
    const requireModules = [
      require.resolve('../lib/register-env.js'),
      ...nyc.require.map(mod => resolveFrom.silent(nyc.cwd, mod) || mod)
    ]
    const preloadList = require('node-preload')
    preloadList.push(
      ...requireModules,
      require.resolve('../lib/wrap.js')
    )

Object.assign(process.env, env)
    requireModules.forEach(mod => {
      require(mod)
    })
  }

if (argv.all) {
    await nyc.addAllFiles()
  }

if (argv.useSpawnWrap) {
    const wrapper = require.resolve('./wrap.js')
    // Support running nyc as a user without HOME (e.g. linux 'nobody'),
    // https://github.com/istanbuljs/nyc/issues/951
    env.SPAWN_WRAP_SHIM_ROOT = process.env.SPAWN_WRAP_SHIM_ROOT || process.env.XDG_CACHE_HOME || require('os').homedir()
    const sw = require('spawn-wrap')

sw([wrapper], env)
  }

// Both running the test script invocation and the check-coverage run may
  // set process.exitCode. Keep track so that both children are run, but
  // a non-zero exit codes in either one leads to an overall non-zero exit code.
  process.exitCode = 0
  foreground(childArgs, async () => {
    const mainChildExitCode = process.exitCode

try {
      await nyc.writeProcessIndex()

nyc.maybePurgeSourceMapCache()
      if (argv.checkCoverage) {
        await nyc.checkCoverage({
          lines: argv.lines,
          functions: argv.functions,
          branches: argv.branches,
          statements: argv.statements
        }, argv['per-file']).catch(suppressEPIPE)
        process.exitCode = process.exitCode || mainChildExitCode
      }

if (!argv.silent) {
        await nyc.report().catch(suppressEPIPE)
      }
    } catch (error) {
      /* istanbul ignore next */
      process.exitCode = process.exitCode || mainChildExitCode || 1
      /* istanbul ignore next */
      console.error(error.message)
    }
  })
}

cliWrapper(main)()

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