65 lines
1.9 KiB
JavaScript
65 lines
1.9 KiB
JavaScript
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'use strict'
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const log = require('npmlog')
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const execFile = require('child_process').execFile
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const path = require('path')
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function logWithPrefix (log, prefix) {
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function setPrefix (logFunction) {
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return (...args) => logFunction.apply(null, [ prefix, ...args ]) // eslint-disable-line
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}
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return {
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silly: setPrefix(log.silly),
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verbose: setPrefix(log.verbose),
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info: setPrefix(log.info),
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warn: setPrefix(log.warn),
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error: setPrefix(log.error)
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}
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}
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function regGetValue (key, value, addOpts, cb) {
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const outReValue = value.replace(/\W/g, '.')
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const outRe = new RegExp(`^\\s+${outReValue}\\s+REG_\\w+\\s+(\\S.*)$`, 'im')
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const reg = path.join(process.env.SystemRoot, 'System32', 'reg.exe')
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const regArgs = ['query', key, '/v', value].concat(addOpts)
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log.silly('reg', 'running', reg, regArgs)
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const child = execFile(reg, regArgs, { encoding: 'utf8' },
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function (err, stdout, stderr) {
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log.silly('reg', 'reg.exe stdout = %j', stdout)
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if (err || stderr.trim() !== '') {
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log.silly('reg', 'reg.exe err = %j', err && (err.stack || err))
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log.silly('reg', 'reg.exe stderr = %j', stderr)
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return cb(err, stderr)
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}
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const result = outRe.exec(stdout)
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if (!result) {
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log.silly('reg', 'error parsing stdout')
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return cb(new Error('Could not parse output of reg.exe'))
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}
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log.silly('reg', 'found: %j', result[1])
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cb(null, result[1])
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})
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child.stdin.end()
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}
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function regSearchKeys (keys, value, addOpts, cb) {
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var i = 0
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const search = () => {
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log.silly('reg-search', 'looking for %j in %j', value, keys[i])
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regGetValue(keys[i], value, addOpts, (err, res) => {
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++i
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if (err && i < keys.length) { return search() }
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cb(err, res)
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})
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}
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search()
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}
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module.exports = {
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logWithPrefix: logWithPrefix,
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regGetValue: regGetValue,
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regSearchKeys: regSearchKeys
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}
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