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win: fix fs.realpath.native for long paths
Unlike other fs.js functions that work with paths, realpath.native isn't
using pathModule.toNamespacedPath prior to calling libuv function. This
is causing issues on windows.

Windows long path test is also improved to cover the mentioned issue.

Fixes: #39721
PR-URL: #44536
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: Gerhard Stöbich <deb2001-github@yahoo.de>
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StefanStojanovic authored and RafaelGSS committed Sep 26, 2022
1 parent 1b16051 commit 360b74e
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Showing 2 changed files with 5 additions and 2 deletions.
4 changes: 2 additions & 2 deletions lib/fs.js
Expand Up @@ -2612,7 +2612,7 @@ realpathSync.native = (path, options) => {
options = getOptions(options);
path = getValidatedPath(path);
const ctx = { path };
const result = binding.realpath(path, options.encoding, undefined, ctx);
const result = binding.realpath(pathModule.toNamespacedPath(path), options.encoding, undefined, ctx);
handleErrorFromBinding(ctx);
return result;
};
Expand Down Expand Up @@ -2772,7 +2772,7 @@ realpath.native = (path, options, callback) => {
path = getValidatedPath(path);
const req = new FSReqCallback();
req.oncomplete = callback;
return binding.realpath(path, options.encoding, req);
return binding.realpath(pathModule.toNamespacedPath(path), options.encoding, req);
};

/**
Expand Down
3 changes: 3 additions & 0 deletions test/parallel/test-fs-long-path.js
Expand Up @@ -43,4 +43,7 @@ console.log({

fs.writeFile(fullPath, 'ok', common.mustSucceed(() => {
fs.stat(fullPath, common.mustSucceed());

// Tests https://github.com/nodejs/node/issues/39721
fs.realpath.native(fullPath, common.mustSucceed());
}));

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