Release 0.6.19

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>

CHANGELOG.md

@@ -4,6 +4,10 @@ One line per change, grouped by the release that shipped it. Newest
 first. A release is a Cargo.toml bump plus a `v<version>` tag; the
 content repos pin the tag they run (see the end of this file).
 
+## 0.6.19 (2026-10-05)
+
+- A `kind: url` resource whose JSON is a releases manifest (`latest`, `versions` with per-platform `assets`, `channels` such as a package repo or TestFlight) renders as a download card: the file for the visitor's own platform first, decided in the browser, the rest and the channels folded. Written for redoal's public releases at dl.redoal.com (docs: content-reference, "A releases manifest").
+
 ## 0.6.18 (2026-10-03)
 
 - `iris check --findings <out.jsonl>` writes every finding as JSON: a stable `id` (scope, need, code and subject, nothing of the wording), `level`, `code`, `scope`, `need`, `subject`, `message` and `fix`. Every message that knows its fix now says it after "fix:". The codes are listed in docs/lint.md.

Cargo.lock

@@ -3357,7 +3357,7 @@ dependencies = [
 
 [[package]]
 name = "portal"
-version = "0.6.18"
+version = "0.6.19"
 dependencies = [
  "anyhow",
  "arc-swap",

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "portal"
-version = "0.6.18"
+version = "0.6.19"
 edition = "2021"
 
 [lib]
@@ -60,6 +60,7 @@ web-sys = { version = "0.3", features = [
     "FileList",
     "FormData",
     "HtmlInputElement",
+    "Navigator",
     "Request",
     "RequestInit",
     "Response",

docs/content-reference.md

@@ -255,6 +255,7 @@ reads is never a client-supplied parameter.
           states: [approved, refused]      # only these; empty means all
           where: { field: case, equals: "{key}" }
           jq: ".[] | {name, url: .html_url}"
+          limit: 1                 # at most this many, after jq
           empty: Nothing decided yet.
           link: { to: "/notices/{id}", label: Answer this }   # a page per record
           transitions:             # the desk's buttons
@@ -264,6 +265,14 @@ reads is never a client-supplied parameter.
 `source.kind` is one of `kv`, `gitea_starred`,
 `gitea_releases`, `url`.
 
+`limit: 1` shows only the first item — for a feed where only the newest
+matters. A releases card wants the cut someone should run, not every
+cut there has ever been, and a page that grows by one card per release
+gets longer forever. It applies *after* `jq`, so a filter can reorder
+and the limit takes the top of that ordering. A source that yields a
+single record has no length and ignores it; `limit: 0` on a list shows
+nothing, and the `empty` line speaks instead.
+
 A spec with neither `public: true` nor `requires_group` is
 unreachable: reads fail closed, and mutations always need a group
 whatever `public` says.
@@ -293,6 +302,18 @@ stays about the work in hand however long the site has run; nothing
 is hidden from a read-only list, and `leaves_after` still takes a
 record out of every list altogether.
 
+A **releases manifest** - a `kind: url` resource whose JSON is
+`{ name, latest, versions: [{ version, date, notes, assets: [{ platform,
+url, sha256, size }] }], channels: { arch: { repo, package, note },
+ios: { testflight, note } } }`, newest version first, as a release
+pipeline writes it - renders as one card: the newest version, the file
+for the visitor's own platform first (read from the browser: `ios`,
+`macos`, `linux-x86_64`, `linux-aarch64`, `windows`, `android`), the
+other files and the channels folded under "All downloads". Linux gets
+the package repo lines beside its file; iPhones and Macs get
+TestFlight. Platforms a manifest lacks fall through to the folded
+list.
+
 `states` and `where` narrow a listing. They matter most for a register
 that is public by law — public about what was decided, not about what
 was withdrawn — while the desk working the same bucket is a different

src/app.rs

@@ -2124,9 +2124,147 @@ fn ResourceValue(
         }
     }
 
+    // A releases manifest (content-reference, "A releases manifest"):
+    // the newest version, its files per platform, and the standing
+    // channels, with the visitor's own platform picked in the browser.
+    if is_releases_manifest(&value) {
+        return view! { <ReleasesCard manifest=value/> }.into_any();
+    }
+
     view! { <pre class="resource-raw">{value.to_string()}</pre> }.into_any()
 }
 
+/// `{ name, latest, versions: [{ version, date, notes, assets: [{
+/// platform, url, sha256, size }] }], channels: {...} }` - the shape a
+/// release pipeline writes (redoal's does) for a site to offer downloads.
+pub fn is_releases_manifest(value: &serde_json::Value) -> bool {
+    value.get("latest").and_then(|v| v.as_str()).is_some()
+        && value.get("versions").and_then(|v| v.as_array()).is_some_and(|v| !v.is_empty())
+}
+
+/// The platform a browser says it is, in the manifest's words:
+/// `ios`, `macos`, `android`, `windows`, `linux-x86_64`,
+/// `linux-aarch64`, or `other`. Read, never trusted for anything but
+/// which download to put first.
+pub fn platform_of(user_agent: &str) -> &'static str {
+    let ua = user_agent.to_ascii_lowercase();
+    if ua.contains("iphone") || ua.contains("ipad") {
+        "ios"
+    } else if ua.contains("mac os x") || ua.contains("macintosh") {
+        "macos"
+    } else if ua.contains("android") {
+        "android"
+    } else if ua.contains("windows") {
+        "windows"
+    } else if ua.contains("linux") || ua.contains("x11") {
+        if ua.contains("aarch64") || ua.contains("arm64") {
+            "linux-aarch64"
+        } else {
+            "linux-x86_64"
+        }
+    } else {
+        "other"
+    }
+}
+
+/// The newest release as a card: the file for this device first (the
+/// platform is read in the browser, so the server renders every file
+/// and the pick lands on hydration), the rest after, and the channels
+/// that are not files - a package repo, TestFlight.
+#[component]
+fn ReleasesCard(manifest: serde_json::Value) -> impl IntoView {
+    let name = manifest.get("name").and_then(|v| v.as_str()).unwrap_or("").to_string();
+    let latest = manifest.get("latest").and_then(|v| v.as_str()).unwrap_or("").to_string();
+    let newest = manifest["versions"][0].clone();
+    let date = newest.get("date").and_then(|v| v.as_str()).unwrap_or("").to_string();
+    let notes = newest.get("notes").and_then(|v| v.as_str()).filter(|u| u.starts_with("https://")).map(str::to_string);
+    let assets: Vec<(String, String, String)> = newest
+        .get("assets")
+        .and_then(|a| a.as_array())
+        .map(|a| {
+            a.iter()
+                .filter_map(|x| {
+                    let platform = x.get("platform")?.as_str()?.to_string();
+                    let url = x.get("url")?.as_str()?.to_string();
+                    let sha = x.get("sha256").and_then(|s| s.as_str()).unwrap_or("").to_string();
+                    Some((platform, url, sha))
+                })
+                .collect()
+        })
+        .unwrap_or_default();
+    let channels = manifest.get("channels").cloned().unwrap_or(serde_json::Value::Null);
+    let arch = channels.get("arch").cloned();
+    let ios = channels.get("ios").cloned();
+
+    let platform = RwSignal::new(None::<&'static str>);
+    Effect::new(move |_| {
+        #[cfg(feature = "hydrate")]
+        if let Some(ua) = web_sys::window().and_then(|w| w.navigator().user_agent().ok()) {
+            platform.set(Some(platform_of(&ua)));
+        }
+    });
+    let label = |p: &str| match p {
+        "linux-x86_64" => "Linux (x86_64)",
+        "linux-aarch64" => "Linux (aarch64)",
+        "macos" | "macos-arm64" => "macOS",
+        "windows" | "windows-x86_64" => "Windows",
+        other => other,
+    }.to_string();
+    let assets_for_list = assets.clone();
+    let arch_for_pick = arch.clone();
+    let ios_for_pick = ios.clone();
+    let assets_for_pick = assets.clone();
+    view! {
+        <article class="item-card releases">
+            <div class="item-card-title">
+                <strong>{name.clone()} " " {latest.clone()}</strong>
+                {(!date.is_empty()).then(|| view! { <span class="dim">" · " {date.clone()}</span> })}
+                {notes.clone().map(|u| view! { " · " <a href=u target="_blank" rel="noopener noreferrer">{move || t(&lang().get(), "release_notes")}</a> })}
+            </div>
+            // What this device should take, decided in the browser.
+            {move || {
+                let p = platform.get()?;
+                let arch = arch_for_pick.clone();
+                let ios = ios_for_pick.clone();
+                let own = assets_for_pick.iter().find(|(pl, _, _)| pl == p).cloned();
+                let pick: Option<AnyView> = match (p, own) {
+                    (_, Some((pl, url, _))) => Some(view! {
+                        <p><a class="pill" href=url download>{t(&lang().get(), "for_this_device")} ": " {label(&pl)}</a></p>
+                        {(p.starts_with("linux") && arch.is_some()).then(|| {
+                            let a = arch.clone().unwrap();
+                            let repo = a.get("repo").and_then(|v| v.as_str()).unwrap_or("").to_string();
+                            let pkg = a.get("package").and_then(|v| v.as_str()).unwrap_or("").to_string();
+                            view! { <pre class="monospace dim">{repo} "\n\npacman -Syu " {pkg}</pre> }
+                        })}
+                    }.into_any()),
+                    ("ios" | "macos", None) => ios.as_ref().and_then(|i| i.get("testflight").and_then(|v| v.as_str()).map(str::to_string)).map(|tf| {
+                        let note = ios.as_ref().and_then(|i| i.get("note").and_then(|v| v.as_str())).unwrap_or("").to_string();
+                        view! { <p><a class="pill" href=tf target="_blank" rel="noopener noreferrer">{t(&lang().get(), "for_this_device")} ": TestFlight"</a> <span class="dim">" " {note}</span></p> }.into_any()
+                    }),
+                    _ => None,
+                };
+                pick
+            }}
+            <details class="releases-all">
+                <summary>{move || t(&lang().get(), "all_downloads")}</summary>
+                <ul>
+                    {assets_for_list.iter().map(|(pl, url, sha)| view! {
+                        <li><a href=url.clone() download>{label(pl)}</a> {(!sha.is_empty()).then(|| view! { <span class="dim monospace">" sha256 " {sha[..sha.len().min(12)].to_string()} "…"</span> })}</li>
+                    }).collect::<Vec<_>>()}
+                    {arch.as_ref().map(|a| {
+                        let note = a.get("note").and_then(|v| v.as_str()).unwrap_or("").to_string();
+                        view! { <li>{note}</li> }
+                    })}
+                    {ios.as_ref().and_then(|i| i.get("testflight").and_then(|v| v.as_str()).map(|tf| {
+                        let note = i.get("note").and_then(|v| v.as_str()).unwrap_or("").to_string();
+                        view! { <li><a href=tf.to_string() target="_blank" rel="noopener noreferrer">"TestFlight"</a> " " {note}</li> }
+                    }))}
+                </ul>
+            </details>
+        </article>
+    }
+}
+
 /// Pulls the first present, non-null string field out of a JSON object
 /// matching one of `keys`, tried in order - shared between `ItemCard`
 /// and `SelectField`'s option rendering, since both need "guess a
@@ -3365,3 +3503,27 @@ mod picture_tests {
         assert_eq!(picture_of(&answer, None), None);
     }
 }
+
+#[cfg(test)]
+mod releases_tests {
+    use super::*;
+
+    #[test]
+    fn a_browser_names_its_platform_in_the_manifests_words() {
+        assert_eq!(platform_of("Mozilla/5.0 (iPhone; CPU iPhone OS 19_0 like Mac OS X)"), "ios");
+        assert_eq!(platform_of("Mozilla/5.0 (Macintosh; Intel Mac OS X 15_0)"), "macos");
+        assert_eq!(platform_of("Mozilla/5.0 (X11; Linux x86_64) Firefox"), "linux-x86_64");
+        assert_eq!(platform_of("Mozilla/5.0 (X11; Linux aarch64) Firefox"), "linux-aarch64");
+        assert_eq!(platform_of("Mozilla/5.0 (Windows NT 10.0; Win64; x64)"), "windows");
+        assert_eq!(platform_of("Mozilla/5.0 (Linux; Android 15)"), "android");
+        assert_eq!(platform_of("curl/8"), "other");
+    }
+
+    #[test]
+    fn only_a_manifest_shape_is_a_manifest() {
+        let m = serde_json::json!({"name":"redoal","latest":"0.1.17","versions":[{"version":"0.1.17","assets":[]}]});
+        assert!(is_releases_manifest(&m));
+        assert!(!is_releases_manifest(&serde_json::json!({"latest":"1","versions":[]})));
+        assert!(!is_releases_manifest(&serde_json::json!([{"name":"x"}])));
+    }
+}

src/content/mod.rs

@@ -519,6 +519,18 @@ pub struct ResourceSpec {
     /// it where the silence needs a voice ("Nothing released yet").
     #[serde(default)]
     pub empty: Option<String>,
+    /// Show at most this many items, applied after `jq`. For a feed
+    /// where only the newest matters: a releases card wants the cut you
+    /// should run, not every cut there has ever been, and a page that
+    /// grows by one card per release gets longer forever.
+    ///
+    /// After `jq` rather than before, so it caps what the page will
+    /// actually render whatever the filter did — and so content can
+    /// reorder with jq and still take the top of its own ordering. A
+    /// source that yields a single record has no length and passes
+    /// through untouched. `None` shows everything.
+    #[serde(default)]
+    pub limit: Option<usize>,
 }
 
 /// Where a resource's live data comes from. `Kv` (a NATS KV bucket

src/i18n.rs

@@ -25,6 +25,9 @@ fn lookup(lang: &str, key: &str) -> Option<&'static str> {
         ("en", "sign_out") => "Sign out",
         ("en", "nothing_here_yet") => "Nothing here yet.",
         ("en", "show_older") => "Show older",
+        ("en", "for_this_device") => "For this device",
+        ("en", "all_downloads") => "All downloads",
+        ("en", "release_notes") => "release notes",
         ("en", "upload_failed") => "The file did not arrive, so nothing was sent. Try again.",
         ("en", "upload_too_large") => "The file is larger than 20 MB, so nothing was sent. Choose a smaller one, or a picture taken at a lower resolution.",
         ("en", "upload_unavailable") => "This site cannot take files at the moment, so nothing was sent. Let whoever runs the site know.",
@@ -62,6 +65,9 @@ fn lookup(lang: &str, key: &str) -> Option<&'static str> {
         ("no", "sign_out") => "Logg ut",
         ("no", "nothing_here_yet") => "Ingenting her ennå.",
         ("no", "show_older") => "Vis eldre",
+        ("no", "for_this_device") => "Til denne enheten",
+        ("no", "all_downloads") => "Alle nedlastinger",
+        ("no", "release_notes") => "utgivelsesnotater",
         ("no", "upload_failed") => "Filen kom ikke fram, så ingenting ble sendt. Prøv igjen.",
         ("no", "upload_too_large") => "Filen er større enn 20 MB, så ingenting ble sendt. Velg en mindre fil, eller et bilde med lavere oppløsning.",
         ("no", "upload_unavailable") => "Siden kan ikke ta imot filer akkurat nå, så ingenting ble sendt. Si fra til den som har siden.",
@@ -117,6 +123,9 @@ mod tests {
             "sign_out",
             "nothing_here_yet",
             "show_older",
+            "for_this_device",
+            "all_downloads",
+            "release_notes",
             "upload_failed",
             "upload_too_large",
             "upload_unavailable",

src/resource.rs

@@ -347,9 +347,29 @@ async fn fetch_resource_value(
         ResourceSource::Url { url } => fetch_url_json(url, params).await?,
     };
 
-    match &resource.jq {
+    let shaped = match &resource.jq {
-        Some(filter) => apply_jq(filter, &value),
+        Some(filter) => apply_jq(filter, &value)?,
-        None => Ok(value),
+        None => value,
+    };
+    Ok(apply_limit(resource.limit, shaped))
+}
+
+/// Keep at most `n` items, after `jq` has had its say.
+///
+/// Anything that is not a list passes through: a single record has no
+/// length to cap, and silently turning one into an empty list would be
+/// worse than ignoring a limit that cannot apply. A limit of zero does
+/// mean nothing — the resource's `empty` line speaks instead, which is
+/// a coherent thing for content to ask for.
+#[cfg(feature = "ssr")]
+fn apply_limit(limit: Option<usize>, value: serde_json::Value) -> serde_json::Value {
+    let Some(n) = limit else { return value };
+    match value {
+        serde_json::Value::Array(mut items) => {
+            items.truncate(n);
+            serde_json::Value::Array(items)
+        }
+        other => other,
     }
 }
 
@@ -664,6 +684,51 @@ mod tests {
         assert!(!matches_filter(&fixed, &record("open", serde_json::json!({ "which_authority": "Fire service" })), &params));
     }
 
+    /// `limit` caps what the page renders, and does it after `jq` so
+    /// content can order with the filter and take the top of its own
+    /// ordering. The releases card is the case: the newest cut is the
+    /// one you should run, and a page that grows a card per release
+    /// gets longer forever.
+    #[test]
+    fn limit_caps_a_list_after_the_filter() {
+        let releases = serde_json::json!([
+            {"name": "redoal 0.1.17", "tag_name": "v0.1.17", "body": "newest"},
+            {"name": "redoal 0.1.16", "tag_name": "v0.1.16", "body": "older"},
+            {"name": "redoal 0.1.15", "tag_name": "v0.1.15", "body": "oldest"}
+        ]);
+        // The filter redoal/questions actually declares: bare objects,
+        // never a wrapped array — the frontend re-wraps.
+        let filter = ".[] | {name: .name, description: .body, tag: .tag_name, url: null}";
+        let shaped = apply_jq(filter, &releases).expect("filter runs");
+
+        let all = apply_limit(None, shaped.clone());
+        assert_eq!(all.as_array().map(Vec::len), Some(3), "no limit shows everything");
+
+        let latest = apply_limit(Some(1), shaped.clone());
+        let rows = latest.as_array().expect("still a list");
+        assert_eq!(rows.len(), 1);
+        assert_eq!(rows[0]["tag"], "v0.1.17", "and it is the newest, which Gitea returns first");
+
+        let two = apply_limit(Some(2), shaped.clone());
+        assert_eq!(two.as_array().map(Vec::len), Some(2));
+
+        // Asking for more than there is is not an error.
+        let plenty = apply_limit(Some(99), shaped);
+        assert_eq!(plenty.as_array().map(Vec::len), Some(3));
+    }
+
+    /// A limit that cannot apply is ignored rather than guessed at.
+    #[test]
+    fn limit_leaves_a_single_record_alone() {
+        let one = serde_json::json!({"name": "a record", "state": "open"});
+        assert_eq!(apply_limit(Some(1), one.clone()), one);
+        assert_eq!(apply_limit(Some(0), one.clone()), one, "no length to cap");
+
+        // Zero on a list does mean nothing — the `empty` line speaks.
+        let list = serde_json::json!([{"a": 1}, {"a": 2}]);
+        assert_eq!(apply_limit(Some(0), list).as_array().map(Vec::len), Some(0));
+    }
+
     /// A canned, Gitea-API-shaped fixture - the same fields the real
     /// `/users/{username}/starred` endpoint returns (Gitea 1.27:
     /// `stars_count`, not GitHub's `stargazers_count`; `website` is ""

style/main.css

@@ -1294,6 +1294,12 @@ textarea:focus {
   cursor: pointer;
 }
 
+/* A releases manifest: the pick for this device, the rest folded. */
+.releases .pill { display: inline-block; }
+.releases pre { white-space: pre-wrap; font-size: 0.85rem; margin: 0.4rem 0 0; }
+.releases-all summary { color: var(--ink-dim); font-size: 0.9rem; cursor: pointer; }
+.releases-all ul { margin: 0.4rem 0 0 1rem; font-size: 0.9rem; }
+
 .show-older:hover {
   color: inherit;
   border-color: var(--ink-dim);