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files >> //lib/node_modules/npm/lib/doctor/check-files-permission.js
var fs = require('fs') var path = require('path') var getUid = require('uid-number') var chain = require('slide').chain var log = require('npmlog') var npm = require('../npm.js') var fileCompletion = require('../utils/completion/file-completion.js') function checkFilesPermission (root, fmask, dmask, cb) { if (process.platform === 'win32') return cb(null, true) getUid(npm.config.get('user'), npm.config.get('group'), function (e, uid, gid) { var tracker = log.newItem('checkFilePermissions', 1) if (e) { tracker.finish() tracker.warn('checkFilePermissions', 'Error looking up user and group:', e) return cb(e) } tracker.info('checkFilePermissions', 'Building file list of ' + root) fileCompletion(root, '.', Infinity, function (e, files) { if (e) { tracker.warn('checkFilePermissions', 'Error building file list:', e) tracker.finish() return cb(e) } tracker.addWork(files.length) tracker.completeWork(1) chain(files.map(andCheckFile), function (er) { tracker.finish() cb(null, !er) }) function andCheckFile (f) { return [checkFile, f] } function checkFile (f, next) { var file = path.join(root, f) tracker.silly('checkFilePermissions', f) fs.lstat(file, function (e, stat) { tracker.completeWork(1) if (e) return next(e) if (!stat.isDirectory() && !stat.isFile()) return next() // 6 = fs.constants.R_OK | fs.constants.W_OK // constants aren't available on v4 fs.access(file, stat.isFile() ? fmask : dmask, (err) => { if (err) { tracker.error('checkFilePermissions', `Missing permissions on ${file}`) return next(new Error('Missing permissions for ' + file)) } else { return next() } }) }) } }) }) } module.exports = checkFilesPermission
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