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fix: VFS should not walk circular symlinks #17093

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merged 1 commit into from
Apr 18, 2024

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Wilfred
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@Wilfred Wilfred commented Apr 17, 2024

As of #6246, rust-analyzer follows symlinks. This can introduce an infinite loop if symlinks point to parent directories.

Considering that #6246 was added in 2020 without many bug reports, this is clearly a rare occurrence. However, I am observing rust-analyzer hang on projects that have symlinks of the form:

test/a_symlink -> ../../

Ignore symlinks that only point to the parent directories, as this is more robust but still allows typical symlink usage patterns.

@Wilfred Wilfred marked this pull request as ready for review April 17, 2024 18:29
@rustbot rustbot added the S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. label Apr 17, 2024
As of rust-lang#6246, rust-analyzer follows symlinks. This can introduce an
infinite loop if symlinks point to parent directories.

Considering that rust-lang#6246 was added in 2020 without many bug reports,
this is clearly a rare occurrence. However, I am observing
rust-analyzer hang on projects that have symlinks of the form:

```
test/a_symlink -> ../../
```

Ignore symlinks that only point to the parent directories, as this is
more robust but still allows typical symlink usage patterns.
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Veykril commented Apr 18, 2024

@bors r+

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bors commented Apr 18, 2024

📌 Commit bd133ee has been approved by Veykril

It is now in the queue for this repository.

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bors commented Apr 18, 2024

⌛ Testing commit bd133ee with merge 062e1b9...

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bors commented Apr 18, 2024

☀️ Test successful - checks-actions
Approved by: Veykril
Pushing 062e1b9 to master...

@bors bors merged commit 062e1b9 into rust-lang:master Apr 18, 2024
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@Wilfred Wilfred deleted the vfs_ignore_symlink_cycles branch May 1, 2024 00:17
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4 participants