tonhowtf/omniget · error

falhou

Error message

{} falhou: {}

What it means

run() is a generic helper in uninstall.rs that spawns an external program (apt, dnf, osascript, msiexec, etc.) and captures its output. When the child process exits with a non-zero status, the helper wraps the failure into this error, preferring stderr output (falling back to stdout) in the message. It reports a failed external uninstaller command, not a Rust-side bug.

Solutions

  1. Read the stderr portion of the error message — it contains the actual package manager/system tool diagnostics
  2. Re-run the failing command manually in a terminal (e.g. `sudo apt remove -y <pkg>`) to see full output
  3. Ensure the process has sufficient privileges (root/pkexec) for system package operations
  4. Verify the program named in the message is installed and on PATH
Defensive patterns

Strategy: try-catch

Validate before calling

if !program_exists(program) {
    anyhow::bail!("{} não encontrado no PATH", program);
}

Try / catch

match uninstall::uninstall(&app).await {
    Ok(msg) => log::info!("{}", msg),
    Err(e) => {
        let msg = e.to_string();
        // msg embeds stderr from the package manager; surface it to the user
        log::error!("uninstall failed: {}", msg);
    }
}

Prevention

When it happens

Trigger: Any uninstall path that shells out to a package manager or system tool whose invocation exits non-zero: apt/rpm/dnf removal failing, msiexec /x failing, or osascript failing to move an app to Trash.

Common situations: Package not found by the system package manager; missing sudo/pkexec privileges; corrupted uninstall registry entry; MSI database errors; locked files on macOS preventing Trash move.

Understand the failure class

Background: "API error: {status}" and "HTTP 401/403/404/429/5xx" errors: non-2xx HTTP responses explained — this error's family across 27 libraries.

Related errors

AI-assisted analysis of tonhowtf/omniget@8600b91f42 (2026-09-12). Data as JSON: /api/errors/1de5aaeb278d474d. Report an issue: GitHub.

Appendix: source

Thrown at src-tauri/omniget-core/src/core/tools/uninstall.rs:47

    pub path: String,
    pub bytes: u64,
}

fn home() -> PathBuf {
    dirs::home_dir().unwrap_or_default()
}

fn size_of(path: &Path) -> u64 {
    super::sysclean::measure(path).0
}

async fn run(program: &str, args: &[&str]) -> anyhow::Result<String> {
    let o = crate::core::process::command(program)
        .args(args)
        .output()
        .await?;
    if !o.status.success() {
        return Err(anyhow!(
            "{} falhou: {}",
            program,
            String::from_utf8_lossy(if o.stderr.is_empty() {
                &o.stdout
            } else {
                &o.stderr
            })
            .trim()
        ));
    }
    Ok(String::from_utf8_lossy(&o.stdout).to_string())
}

// ── macOS ──────────────────────────────────────────────────────────────

async fn mac_list(progress: &super::ProgressFn) -> Vec<App> {
    let mut out = Vec::new();
    let mut paths = Vec::new();

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