Sha256: d144b74606e1b13e84663a7f9fca57b9a432288b73dc95281a056d2dfb201adc
Contents?: true
Size: 1.78 KB
Versions: 3
Compression:
Stored size: 1.78 KB
Contents
'use strict'
const fs = require('graceful-fs')
const util = require('util')
const chmod = util.promisify(fs.chmod)
const unlink = util.promisify(fs.unlink)
const stat = util.promisify(fs.stat)
const move = require('move-concurrently')
const pinflight = require('promise-inflight')
module.exports = moveFile
function moveFile (src, dest) {
// This isn't quite an fs.rename -- the assumption is that
// if `dest` already exists, and we get certain errors while
// trying to move it, we should just not bother.
//
// In the case of cache corruption, users will receive an
// EINTEGRITY error elsewhere, and can remove the offending
// content their own way.
//
// Note that, as the name suggests, this strictly only supports file moves.
return new Promise((resolve, reject) => {
fs.link(src, dest, (err) => {
if (err) {
if (err.code === 'EEXIST' || err.code === 'EBUSY') {
// file already exists, so whatever
} else if (err.code === 'EPERM' && process.platform === 'win32') {
// file handle stayed open even past graceful-fs limits
} else {
return reject(err)
}
}
return resolve()
})
})
.then(() => {
// content should never change for any reason, so make it read-only
return Promise.all([
unlink(src),
process.platform !== 'win32' && chmod(dest, '0444')
])
})
.catch(() => {
return pinflight('cacache-move-file:' + dest, () => {
return stat(dest).catch((err) => {
if (err.code !== 'ENOENT') {
// Something else is wrong here. Bail bail bail
throw err
}
// file doesn't already exist! let's try a rename -> copy fallback
return move(src, dest, { Promise, fs })
})
})
})
}
Version data entries
3 entries across 3 versions & 3 rubygems