Microsoft/vscode
1
0
Fork 0
mirror of https://github.com/microsoft/vscode.git synced 2026-05-03 23:06:49 +01:00
Code Issues Packages Projects Releases Wiki Activity

Use 'r+' with truncation when saving existing files on Windows (#42899)

Browse Source 
* Use 'r+' with truncation when saving existing files on Windows

Opening a file with 'w' flag removes its alternate data streams. To
prevent this, extend the logic used for hidden files to all existing
files.

Fixes: https://github.com/Microsoft/vscode/issues/6363

* adopt truncate for saving as admin
This commit is contained in:
Nikolai Vavilov
2018-08-20 19:55:12 +03:00
committed by Benjamin Pasero
parent ff8009d5d3
commit aaa778b5e2
2 changed files with 21 additions and 21 deletions
Download Patch File Download Diff File Expand all files Collapse all files

21
src/vs/code/node/cli.ts
View File

@@ -87,18 +87,17 @@ export async function main(argv: string[]): Promise<any> {
// Write source to target
const data = fs.readFileSync(source);
try {
if (isWindows) {
// On Windows we use a different strategy of saving the file
// by first truncating the file and then writing with r+ mode.
// This helps to save hidden files on Windows
// (see https://github.com/Microsoft/vscode/issues/931) and
// prevent removing alternate data streams
// (see https://github.com/Microsoft/vscode/issues/6363)
fs.truncateSync(target, 0);
writeFileAndFlushSync(target, data, { flag: 'r+' });
} else {
writeFileAndFlushSync(target, data);
} catch (error) {
// On Windows and if the file exists with an EPERM error, we try a different strategy of saving the file
// by first truncating the file and then writing with r+ mode. This helps to save hidden files on Windows
// (see https://github.com/Microsoft/vscode/issues/931)
if (isWindows && error.code === 'EPERM') {
fs.truncateSync(target, 0);
writeFileAndFlushSync(target, data, { flag: 'r+' });
} else {
throw error;
}
}
// Restore previous mode as needed