self-update is not supported on HarmonyOS/OpenHarmony yet

Error message

self-update is not supported on HarmonyOS/OpenHarmony yet

What it means

The built-in self-update command is not implemented for the HarmonyOS/OpenHarmony (ohos) target; on that platform `update run` is compiled to a stub that always returns this error. The CLI self-update mechanism itself has no ohos packaging/distribution path yet.

Solutions

Upgrade Codewhale through the platform's package manager or app distribution channel instead
Download and install a newer release manually for the ohos target
Check release notes for when ohos self-update support lands

Example fix

// before (on ohos)
$ codewhale update
// after: update via platform package manager, e.g.
$ hpm update codewhale   # or reinstall from the vendor distribution channel

Defensive patterns

Strategy: fallback

Validate before calling

// skip self-update on ohos targets
#[cfg(target_env = "ohos")]
let can_self_update = false;
#[cfg(not(target_env = "ohos"))]
let can_self_update = true;
if !can_self_update { eprintln!("use the platform package manager to update on ohos"); }

Try / catch

match update_result {
    Err(e) if e.to_string().contains("HarmonyOS/OpenHarmony") => {
        eprintln!("falling back to platform-managed update");
        platform_update()?;
    }
    other => other?,
}

Prevention

On ohos, never script `codewhale update`; use the vendor distribution channel
Gate update commands behind an OS check in automation
Track release notes for ohos self-update support before enabling it in tooling

When it happens

Trigger: Running `codewhale update` (self-update subcommand) on a build compiled with target_env = "ohos".

Common situations: Using the CLI on HarmonyOS/OpenHarmony devices or an ohos-cross-compiled build and attempting an in-place upgrade.

Understand the failure class

Background: "unsupported platform" / "not supported on this platform" errors: what they mean and how to fix them — this error's family across 47 libraries.

Related errors

AI-assisted analysis of Hmbown/CodeWhale@73e0f67d83 (2026-09-22). Data as JSON: /api/errors/754a52d3574d241e. Report an issue: GitHub.

Appendix: source

Thrown at crates/cli/src/lib.rs:2308

            stdout.write_all(render_completion_script(shell).as_bytes())?;
            stdout.flush()?;
            Ok(())
        }
        Some(Commands::Metrics(args)) => run_metrics_command(args),
        Some(Commands::Update(args)) => {
            let resolved_runtime =
                resolve_runtime_for_diagnostic_dispatch(&store, &runtime_overrides);
            let session = start_cli_telemetry(
                &resolved_runtime,
                Some(store.path().to_path_buf()),
                Surface::Cli,
            );
            #[cfg(not(target_env = "ohos"))]
            let outcome = update::run_update(args.beta, args.check, args.proxy);
            #[cfg(target_env = "ohos")]
            let outcome = {
                let _ = args;
                Err(anyhow!(
                    "self-update is not supported on HarmonyOS/OpenHarmony yet"
                ))
            };
            finish_cli_telemetry(session, &outcome);
            outcome
        }
        Some(Commands::Providers(args)) => run_providers_command(args),
        None => {
            let resolved_runtime = resolve_runtime_for_dispatch(&mut store, &runtime_overrides);
            let forwarded = root_tui_passthrough(&cli)?;
            run_tui_in_process(&cli, &resolved_runtime, forwarded)
        }
    }
}

fn root_tui_passthrough(cli: &Cli) -> Result<Vec<String>> {
    let mut forwarded = Vec::new();
    if cli.continue_session {

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