tonhowtf/omniget · error

reg export falhou

Error message

reg export falhou: {}

What it means

The `reg export` command that dumps the key to a timestamped .reg file under registry-backups exited non-zero; the {} is reg.exe's stderr. Usually the key does not exist, is not exportable due to permissions, or the backup directory/file could not be written.

Solutions

1. Confirm the registry key actually exists before attempting a backup/fix
2. Run the app as administrator for keys under HKEY_LOCAL_MACHINE
3. Check that the registry-backups folder under the app data dir is writable

When it happens

Trigger: Thrown at src-tauri/omniget-core/src/core/tools/win_registry.rs:164 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of tonhowtf/omniget@8600b91f42 (2026-09-12). Data as JSON: /api/errors/ec6d9419dc5922ff. Report an issue: GitHub.

Appendix: source

Thrown at src-tauri/omniget-core/src/core/tools/win_registry.rs:164

    std::fs::create_dir_all(&dir)?;
    let safe: String = key
        .chars()
        .map(|c| if c.is_ascii_alphanumeric() { c } else { '_' })
        .collect();
    let file = dir.join(format!(
        "{}-{}.reg",
        chrono::Local::now().format("%Y%m%d-%H%M%S"),
        safe.chars().take(80).collect::<String>()
    ));
    let o = crate::core::process::command("reg")
        .arg("export")
        .arg(key)
        .arg(&file)
        .arg("/y")
        .output()
        .await?;
    if !o.status.success() {
        return Err(anyhow!(
            "reg export falhou: {}",
            String::from_utf8_lossy(&o.stderr).trim()
        ));
    }
    Ok(file)
}

/// Expande `%VAR%` e devolve o executável de uma linha de comando do registro
/// (`"C:\x\a.exe" /arg`, `C:\x\a.exe /arg`, `rundll32 ...`).
pub fn command_exe(cmd: &str) -> Option<PathBuf> {
    let s = expand_env(cmd.trim());
    if s.is_empty() {
        return None;
    }
    let candidate = if let Some(rest) = s.strip_prefix('"') {
        rest.split('"').next().unwrap_or("").to_string()
    } else {
        // sem aspas: até o primeiro ".exe" (com espaços no caminho) ou o primeiro token

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