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Fix ENOENT error on first start when no user dir (#1711)

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* Fix ENOENT error on first start when no user dir

Write backup using `copySync` and move it below the `fsync` to ensure file is present when backup is made.

* Check for path to exist before attempting backup
This commit is contained in:
Nathan Allen 2018-05-03 04:40:51 -04:00 committed by Nick O'Leary
parent 53e3e08d70
commit 6fa0d671c0
1 changed files with 20 additions and 22 deletions
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42
red/runtime/storage/localfilesystem/util.js
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@ -80,28 +80,26 @@ module.exports = {
*/
writeFile: function(path,content,backupPath) {
if (backupPath) {
try {
fs.renameSync(path,backupPath);
} catch(err) {
console.log(err);
}
}
return when.promise(function(resolve,reject) {
var stream = fs.createWriteStream(path);
stream.on('open',function(fd) {
stream.write(content,'utf8',function() {
fs.fsync(fd,function(err) {
if (err) {
log.warn(log._("storage.localfilesystem.fsync-fail",{path: path, message: err.toString()}));
}
stream.end(resolve);
});
});
});
stream.on('error',function(err) {
reject(err);
});
});
if (fs.existsSync(path)) {
fs.renameSync(path,backupPath);
}
}
return when.promise(function(resolve,reject) {
var stream = fs.createWriteStream(path);
stream.on('open',function(fd) {
stream.write(content,'utf8',function() {
fs.fsync(fd,function(err) {
if (err) {
log.warn(log._("storage.localfilesystem.fsync-fail",{path: path, message: err.toString()}));
}
stream.end(resolve);
});
});
});
stream.on('error',function(err) {
reject(err);
});
});
},
readFile: readFile,