openai/codex · error · anyhow::Error

refusing to reuse existing mismatched file {}

Error message

refusing to reuse existing mismatched file {}

What it means

Error "refusing to reuse existing mismatched file {}" thrown in openai/codex.

Source

Thrown at codex-rs/network-proxy/src/certs.rs:772

}

#[cfg(windows)]
fn sync_parent_dir(_parent: &Path) -> Result<()> {
    Ok(())
}

fn write_atomic_create_new_or_reuse(path: &Path, contents: &[u8], mode: u32) -> Result<()> {
    if fs::symlink_metadata(path)
        .ok()
        .is_some_and(|metadata| metadata.file_type().is_symlink())
    {
        return Err(anyhow!("refusing to reuse symlink {}", path.display()));
    }
    if fs::read(path).ok().as_deref() == Some(contents) {
        return Ok(());
    }
    if path.exists() {
        return Err(anyhow!(
            "refusing to reuse existing mismatched file {}",
            path.display()
        ));
    }
    match write_atomic_create_new(path, contents, mode) {
        Ok(()) => Ok(()),
        Err(_err) if fs::read(path).ok().as_deref() == Some(contents) => Ok(()),
        Err(err) => Err(err),
    }
}

#[cfg(unix)]
fn open_create_new_with_mode(path: &Path, mode: u32) -> Result<File> {
    use std::os::unix::fs::OpenOptionsExt;

    OpenOptions::new()
        .write(true)
        .create_new(true)

View on GitHub (pinned to 339751715c)

When it happens

Trigger: Thrown at codex-rs/network-proxy/src/certs.rs:772 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of openai/codex@339751715c (2026-08-25). Data as JSON: /api/errors/4dba747b728f7329. Report an issue: GitHub.