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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