tonhowtf/omniget · error

Could not determine data directory

Error message

Could not determine data directory

What it means

The pricing module caches the model price table in the platform data directory; cache_path() returns Option and is None when no data directory can be resolved (e.g. no HOME/XDG dir on Linux, missing APPDATA on Windows). load() converts that None into this error before even attempting a fetch. All public entry points (info, search, price_for) go through load, so they all fail in this state.

Solutions

1. Set HOME (Linux/macOS) or APPDATA/LOCALAPPDATA (Windows) to a writable directory
2. Set an explicit XDG_DATA_HOME to a writable path
3. Ensure the process runs as a user with a real profile directory
4. Run the app outside restricted service contexts or pass a configured data dir

Example fix

// before: failing under systemd
ExecStart=/opt/app/omniget
// after
Environment=HOME=/var/lib/omniget
ExecStart=/opt/app/omniget

// check a resolvable data dir before calling the API
let ok = std::env::var("HOME").is_ok()
    || std::env::var("XDG_DATA_HOME").is_ok()
    || std::env::var("APPDATA").is_ok();
if !ok { eprintln!("defina HOME ou XDG_DATA_HOME"); }

When it happens

Trigger: Calling info, search, or price_for on a system where dirs-style data-dir resolution fails: running as a service without HOME set, container images with no user profile, or exotic platforms the directory library doesn't support.

Common situations: CI runners or systemd units running without HOME, Docker containers running as root with no XDG_DATA_HOME, misconfigured environment after su/sudo.

Understand the failure class

Background: "environment variable is not set" and "Missing keys in environment" errors: what missing required env var messages mean and how to fix them — this error's family across 28 libraries.

Related errors

• Could not determine data directory
• Could not determine data directory
• Could not determine data directory
• Proxy must include a scheme, e.g. http://127.0.0.1:7897
• sem pasta de dados

AI-assisted analysis of tonhowtf/omniget@8600b91f42 (2026-09-12). Data as JSON: /api/errors/d5eff83a62b593e7. Report an issue: GitHub.

Appendix: source

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

    pub supports_tools: bool,
    pub supports_reasoning: bool,
    pub supports_caching: bool,
    pub deprecation_date: Option<String>,
}

fn cache_path() -> Option<PathBuf> {
    super::tools_dir().map(|d| d.join("pricing").join("litellm.json"))
}

#[derive(Debug, Clone, Serialize)]
pub struct PricingInfo {
    pub models: usize,
    pub updated_at: Option<String>,
    pub path: Option<String>,
}

async fn load(force: bool) -> anyhow::Result<serde_json::Value> {
    let path = cache_path().ok_or_else(|| anyhow!("Could not determine data directory"))?;
    let fresh = std::fs::metadata(&path)
        .and_then(|m| m.modified())
        .map(|t| t.elapsed().map(|e| e < MAX_AGE).unwrap_or(false))
        .unwrap_or(false);
    if !force && fresh {
        if let Ok(text) = tokio::fs::read_to_string(&path).await {
            if let Ok(v) = serde_json::from_str(&text) {
                return Ok(v);
            }
        }
    }
    let client = super::client()?;
    match client.get(LITELLM_URL).send().await {
        Ok(resp) if resp.status().is_success() => {
            let text = resp.text().await?;
            let v: serde_json::Value = serde_json::from_str(&text)?;
            if let Some(parent) = path.parent() {
                std::fs::create_dir_all(parent)?;

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