tonhowtf/omniget · error · anyhow::Error

escolha ao menos um formato

Error message

escolha ao menos um formato

What it means

The Medium feed exporter validates its Options before doing any work. If neither markdown, html, nor json output formats are selected, there is nothing to produce, so run() fails fast with this Portuguese message instead of creating an empty export directory.

Solutions

1. Set at least one of opts.markdown, opts.html or opts.json to true before calling run()
2. Check the exporter UI/settings so at least one output format checkbox is enabled
3. If building Options in code, default to markdown: true

Example fix

// before
let opts = Options { dest: "/tmp/out".into(), markdown: false, html: false, json: false, ..Default::default() };
// after
let opts = Options { dest: "/tmp/out".into(), markdown: true, html: false, json: false, ..Default::default() };

if !(opts.markdown || opts.html || opts.json) {
    return Err(anyhow!("escolha ao menos um formato"));
}

When it happens

Trigger: Calling run() (or the rede_exporta_feed_de_ponta_a_ponta command) with an Options where opts.markdown, opts.html and opts.json are all false.

Common situations: UI state not persisted so all format checkboxes default to unchecked; a config file reset wiping format flags; programmatically constructing Options and forgetting to set any format bool.

Understand the failure class

Background: "must not be empty", "cannot be empty" — required-field validation errors across open-source libraries — this error's family across 41 libraries.

Related errors

• escolha a pasta de destino para organizar
• informe um appid, um link da loja ou marque a biblioteca…
• pasta de origem não encontrada
• escolha a pasta da biblioteca de destino
• external_data_cache: plugin_id must not be empty

AI-assisted analysis of tonhowtf/omniget@8600b91f42 (2026-09-12). Data as JSON: /api/errors/fc122e874f5efe6d. Report an issue: GitHub.

Appendix: source

Thrown at src-tauri/omniget-core/src/core/tools/blogs/medium.rs:631

    }
    for prefix in ["## ", "# ", "### "] {
        let head = format!("{}{}", prefix, title);
        if let Some(rest) = md.strip_prefix(&head) {
            return rest.trim_start().to_string();
        }
    }
    md.to_string()
}

// ── Execução ───────────────────────────────────────────────────────────

pub async fn run(opts: &Options, progress: ProgressFn) -> Result<ExportResult> {
    let dest = opts.dest.trim();
    if dest.is_empty() {
        return Err(anyhow!("escolha a pasta de destino"));
    }
    if !opts.markdown && !opts.html && !opts.json {
        return Err(anyhow!("escolha ao menos um formato"));
    }
    let user = normalize_user(&opts.user);
    let root = PathBuf::from(dest);
    std::fs::create_dir_all(&root)?;

    let domains: Vec<String> = COOKIE_DOMAINS.iter().map(|d| d.to_string()).collect();
    let fetcher = Fetcher::new(opts.delay_ms, opts.session_netscape.as_deref(), &domains)?;

    let mut note: Option<String> = None;
    let mut source = "rss";
    let mut docs: Vec<PostDoc> = Vec::new();

    if fetcher.has_session() {
        match from_session(&fetcher, opts, &progress).await {
            Ok(d) => {
                source = "session";
                docs = d;
            }

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