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//lib/node_modules/npm/node_modules/node-gyp/lib/util.js

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'use strict'

const log = require('npmlog')
const execFile = require('child_process').execFile
const path = require('path')

function logWithPrefix (log, prefix) {
  function setPrefix (logFunction) {
    return (...args) => logFunction.apply(null, [ prefix, ...args ]) // eslint-disable-line
  }
  return {
    silly: setPrefix(log.silly),
    verbose: setPrefix(log.verbose),
    info: setPrefix(log.info),
    warn: setPrefix(log.warn),
    error: setPrefix(log.error)
  }
}

function regGetValue (key, value, addOpts, cb) {
  const outReValue = value.replace(/\W/g, '.')
  const outRe = new RegExp(`^\\s+${outReValue}\\s+REG_\\w+\\s+(\\S.*)$`, 'im')
  const reg = path.join(process.env.SystemRoot, 'System32', 'reg.exe')
  const regArgs = ['query', key, '/v', value].concat(addOpts)

log.silly('reg', 'running', reg, regArgs)
  const child = execFile(reg, regArgs, { encoding: 'utf8' },
    function (err, stdout, stderr) {
      log.silly('reg', 'reg.exe stdout = %j', stdout)
      if (err || stderr.trim() !== '') {
        log.silly('reg', 'reg.exe err = %j', err && (err.stack || err))
        log.silly('reg', 'reg.exe stderr = %j', stderr)
        return cb(err, stderr)
      }

const result = outRe.exec(stdout)
      if (!result) {
        log.silly('reg', 'error parsing stdout')
        return cb(new Error('Could not parse output of reg.exe'))
      }
      log.silly('reg', 'found: %j', result[1])
      cb(null, result[1])
    })
  child.stdin.end()
}

function regSearchKeys (keys, value, addOpts, cb) {
  var i = 0
  const search = () => {
    log.silly('reg-search', 'looking for %j in %j', value, keys[i])
    regGetValue(keys[i], value, addOpts, (err, res) => {
      ++i
      if (err && i < keys.length) { return search() }
      cb(err, res)
    })
  }
  search()
}

module.exports = {
  logWithPrefix: logWithPrefix,
  regGetValue: regGetValue,
  regSearchKeys: regSearchKeys
}

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Name	Size	Perms	Modified	Actions
build.js	5.16 KB	lrw-r--r--	2021-03-10 14:36:38	Edit Download recursive recursive
clean.js	355 B	lrw-r--r--	2021-03-10 14:36:38	Edit Download recursive recursive
configure.js	12.04 KB	lrw-r--r--	2021-03-10 14:36:38	Edit Download recursive recursive
find-node-directory.js	2.32 KB	lrw-r--r--	2021-03-10 14:36:38	Edit Download recursive recursive
find-python.js	10.88 KB	lrw-r--r--	2021-03-10 14:36:38	Edit Download recursive recursive
Find-VisualStudio.cs	7.75 KB	lrw-r--r--	2021-03-10 14:36:38	Edit Download recursive recursive
find-visualstudio.js	13.53 KB	lrw-r--r--	2021-03-10 14:36:38	Edit Download recursive recursive
install.js	14.01 KB	lrw-r--r--	2021-03-10 14:36:38	Edit Download recursive recursive
list.js	641 B	lrw-r--r--	2021-03-10 14:36:38	Edit Download recursive recursive
node-gyp.js	4.57 KB	lrw-r--r--	2021-03-10 14:36:38	Edit Download recursive recursive
process-release.js	5.65 KB	lrw-r--r--	2021-03-10 14:36:38	Edit Download recursive recursive
proxy.js	2.57 KB	lrw-r--r--	2021-03-10 14:36:38	Edit Download recursive recursive
rebuild.js	314 B	lrw-r--r--	2021-03-10 14:36:38	Edit Download recursive recursive
remove.js	1.28 KB	lrw-r--r--	2021-03-10 14:36:38	Edit Download recursive recursive
util.js	1.87 KB	lrw-r--r--	2021-03-10 14:36:38	Edit Download recursive recursive

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