tonhowtf/omniget · error

Could not determine data directory

Error message

Could not determine data directory

What it means

`download_ytdlp_binary` computes the target file path via `managed_ytdlp_path()`, which returns None when the app cannot resolve its data directory (e.g. no XDG dirs, no home directory, platform API failure). Rather than guessing a location, it fails with "Could not determine data directory". This is an environment-resolution failure, not a network issue.

Solutions

1. Ensure HOME is set and points to a writable directory (export HOME=/path in the service/container).
2. Set XDG_DATA_HOME explicitly to a writable location.
3. Run the app as a user with a proper profile rather than a system/no-login account.
4. Inspect `managed_ytdlp_path()`/dirs crate usage to confirm which environment variable is missing and set it.

Example fix

// before (CI/container)
cargo test
// after
export HOME=/tmp && export XDG_DATA_HOME=/tmp/.data
cargo test

if std::env::var_os("HOME").is_none() && std::env::var_os("XDG_DATA_HOME").is_none() {
    return Err("set HOME or XDG_DATA_HOME before running");
}

fn data_dir_resolvable() -> bool {
    std::env::var_os("XDG_DATA_HOME").is_some() || std::env::var_os("HOME").is_some()
}

match ensure_ytdlp().await {
    Err(e) if e.to_string().contains("Could not determine data directory") => {
        // fix environment (HOME/XDG_DATA_HOME) and retry
    }
    other => other?,
}

When it happens

Trigger: `managed_ytdlp_path()` returns None — typically because the OS data directory (XDG_DATA_HOME / app data dir) cannot be resolved in the current environment.

Common situations: Running in a minimal container/CI with no HOME set; headless Linux without xdg-user-dirs; restricted service accounts; unusual sandboxed environments that block directory APIs.

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/89376af03108511e. Report an issue: GitHub.

Appendix: source

Thrown at src-tauri/omniget-core/src/core/ytdlp.rs:1827

    } else {
        "yt-dlp"
    }
}

fn ytdlp_release_base(channel: YtdlpChannel) -> &'static str {
    match channel {
        YtdlpChannel::Stable => "https://github.com/yt-dlp/yt-dlp/releases/latest/download",
        YtdlpChannel::Nightly => {
            "https://github.com/yt-dlp/yt-dlp-nightly-builds/releases/latest/download"
        }
    }
}

use crate::core::dependencies::integrity;

async fn download_ytdlp_binary() -> anyhow::Result<PathBuf> {
    let target =
        managed_ytdlp_path().ok_or_else(|| anyhow!("Could not determine data directory"))?;
    download_ytdlp_asset(ytdlp_asset_name(), target).await
}

/// O asset `yt-dlp` da release é o zipapp universal (Python ≥ 3.10).
const YTDLP_ZIPAPP_ASSET: &str = "yt-dlp";

async fn download_ytdlp_zipapp() -> anyhow::Result<PathBuf> {
    let target =
        managed_ytdlp_zipapp_path().ok_or_else(|| anyhow!("Could not determine data directory"))?;
    download_ytdlp_asset(YTDLP_ZIPAPP_ASSET, target).await
}

async fn download_ytdlp_asset(asset: &str, target: PathBuf) -> anyhow::Result<PathBuf> {
    if let Some(parent) = target.parent() {
        std::fs::create_dir_all(parent)?;
    }

    let channel = ytdlp_channel();

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