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add a workaround for EPERM issue on windows

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Derived from @korto's fix:
https://github.com/rlidwka/sinopia/issues/67#issuecomment-44782521
This commit is contained in:
Alex Kocharin 2014-11-01 23:05:26 +03:00
parent 7a7d794207
commit a854d07a66
1 changed files with 26 additions and 3 deletions
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29
lib/local-fs.js
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@ -20,12 +20,35 @@ try {
}
}
function tempFile(str) {
return str + '.tmp' + String(Math.random()).substr(2)
}
function renameTmp(src, dst, _cb) {
function cb(err) {
if (err) fs.unlink(src)
_cb(err)
}
if (process.platform !== 'win32') {
return fs.rename(src, dst, cb)
}
// windows can't remove opened file,
// but it seem to be able to rename it
var tmp = tempFile(dst)
fs.rename(dst, tmp, function(err) {
fs.rename(src, dst, cb)
if (!err) fs.unlink(tmp)
})
}
function write(dest, data, cb) {
var safe_write = function(cb) {
var tmpname = dest + '.tmp' + String(Math.random()).substr(2)
var tmpname = tempFile(dest)
fs.writeFile(tmpname, data, function(err) {
if (err) return cb(err)
return fs.rename(tmpname, dest, cb)
renameTmp(tmpname, dest, cb)
})
}
@ -60,7 +83,7 @@ function write_stream(name) {
stream.done = function() {
function onend() {
file.on('close', function() {
fs.rename(tmpname, name, function(err) {
renameTmp(tmpname, name, function(err) {
if (err) {
stream.emit('error', err)
} else {