Wire Updates NVIDIA card to bos-nvidia-setup

The Install driver button runs the real setup instead of only
pacman_install. Prefers pkexec bos-nvidia-setup; falls back to the
allowlisted packages plus the same hyprland.lua drop-in. Tells the
user to reboot. Still click-only — first boot does not install.

frontend/src/lib/views/Updates.svelte

@@ -26,6 +26,7 @@
 		gpu: string;
 		reason: string;
 		packages: string[];
+		installed: boolean;
 	}
 	interface UpdatesStatus {
 		pacman: PendingUpdate[];
@@ -67,16 +68,18 @@
 				<div class="offer-text">
 					<strong>{status.nvidia.gpu}</strong>
 					<p>{status.nvidia.reason}</p>
-					<Hint
-						text="Installs nvidia + nvidia-utils only. Afterward, Hyprland usually needs env = LIBVA_DRIVER_NAME,nvidia / __GLX_VENDOR_LIBRARY_NAME,nvidia / NVD_BACKEND,direct — not written for you. Reboot after install."
-					/>
+					{#if status.nvidia.installed}
+						<Hint text="Driver and Hyprland env drop-in are in place. Reboot to start a working session." />
+					{:else}
+						<Hint text="Installs nvidia + nvidia-utils (not cuda) and writes ~/.config/hypr/nvidia.lua. hyprland.lua loads that file only if it exists. Reboot after." />
+					{/if}
 				</div>
 				<button
 					class="primary"
 					disabled={busy}
-					onclick={() => run("pacman_install", { packages: status?.nvidia?.packages ?? ["nvidia", "nvidia-utils"] })}
+					onclick={() => run("nvidia_setup")}
 				>
-					Install driver
+					{status.nvidia.installed ? "Re-run setup" : "Install driver"}
 				</button>
 			</div>
 		</Group>

src/src/commands/nvidia.rs

@@ -3,23 +3,64 @@
 //! not install anything until the user clicks.
 
 use serde::Serialize;
+use std::path::{Path, PathBuf};
+use tauri::AppHandle;
+
+use super::streaming;
+use super::util::{self, command_exists, pacman_installed};
+
+/// Same drop-in bos-nvidia-setup writes. hyprland.lua dofiles it only
+/// when the file exists (Mesa machines have no file).
+/// Hyprland 0.56 (Aquamarine): wiki requires LIBVA + GLX vendor.
+/// NVD_BACKEND is the current VA-API hint. No WLR_* / GBM_BACKEND.
+const NVIDIA_LUA: &str = "\
+-- Written by bos-nvidia-setup. hyprland.lua dofiles this only when it exists.
+-- Hyprland 0.56 (Aquamarine) — no WLR_* variables.
+-- https://wiki.hypr.land/Nvidia/
+hl.env(\"LIBVA_DRIVER_NAME\", \"nvidia\")
+hl.env(\"__GLX_VENDOR_LIBRARY_NAME\", \"nvidia\")
+hl.env(\"NVD_BACKEND\", \"direct\")
+";
+
+const HYPR_INCLUDE: &str = "\
+-- bos-nvidia-setup: optional proprietary env; no-op when the file is absent
+do
+    local nvidia = (os.getenv(\"HOME\") or \"\") .. \"/.config/hypr/nvidia.lua\"
+    local f = io.open(nvidia, \"r\")
+    if f then
+        f:close()
+        pcall(dofile, nvidia)
+    end
+end
+";
+
+const NVIDIA_PACKAGES: &[&str] = &["nvidia", "nvidia-utils"];
 
 #[derive(Serialize, Clone)]
 pub struct NvidiaOffer {
     gpu: String,
     reason: String,
     packages: Vec<String>,
+    installed: bool,
 }
 
-fn offer_paths() -> Vec<std::path::PathBuf> {
+fn offer_paths() -> Vec<PathBuf> {
     let home = std::env::var("HOME").unwrap_or_else(|_| "/root".into());
-    let state = std::path::Path::new(&home).join(".local/state/bos");
+    let state = Path::new(&home).join(".local/state/bos");
     vec![
         state.join("nvidia-offer.json"),
         state.join("nvidia-probe.json"),
     ]
 }
 
+fn nvidia_dropin_path() -> PathBuf {
+    util::hypr_dir().join("nvidia.lua")
+}
+
+fn nvidia_ready() -> bool {
+    nvidia_dropin_path().is_file() && NVIDIA_PACKAGES.iter().all(|p| pacman_installed(p))
+}
+
 pub fn read_nvidia_offer() -> Option<NvidiaOffer> {
     for path in offer_paths() {
         if !path.is_file() {
@@ -56,11 +97,12 @@ pub fn read_nvidia_offer() -> Option<NvidiaOffer> {
                         .collect::<Vec<_>>()
                 })
                 .filter(|p| !p.is_empty())
-                .unwrap_or_else(|| vec!["nvidia".into(), "nvidia-utils".into()]);
+                .unwrap_or_else(|| default_packages());
             return Some(NvidiaOffer {
                 gpu,
                 reason,
                 packages,
+                installed: nvidia_ready(),
             });
         }
         return Some(generic_offer());
@@ -68,11 +110,16 @@ pub fn read_nvidia_offer() -> Option<NvidiaOffer> {
     None
 }
 
+fn default_packages() -> Vec<String> {
+    NVIDIA_PACKAGES.iter().map(|s| (*s).to_string()).collect()
+}
+
 fn generic_offer() -> NvidiaOffer {
     NvidiaOffer {
         gpu: "NVIDIA GPU".into(),
         reason: "BOS found an NVIDIA device. Install the proprietary driver only if you want it — nouveau stays otherwise.".into(),
-        packages: vec!["nvidia".into(), "nvidia-utils".into()],
+        packages: default_packages(),
+        installed: nvidia_ready(),
     }
 }
 
@@ -81,8 +128,87 @@ pub fn get_nvidia_offer() -> Option<NvidiaOffer> {
     read_nvidia_offer()
 }
 
+/// Install nvidia + nvidia-utils and write the Hyprland env drop-in.
+/// Prefers `/usr/local/bin/bos-nvidia-setup` (ISO script) so package
+/// install + env stay one path. Falls back to allowlisted pacman plus
+/// the same drop-in when the script is not on this install yet.
+#[tauri::command]
+pub async fn nvidia_setup(app: AppHandle, session_id: String) -> bool {
+    let home = std::env::var("HOME").unwrap_or_default();
+    if command_exists("bos-nvidia-setup") {
+        let ok = streaming::run_hardcoded(
+            app.clone(),
+            session_id.clone(),
+            "pkexec",
+            &["bos-nvidia-setup", "--home", &home],
+        )
+        .await;
+        if ok {
+            streaming::emit_line(&app, &session_id, "reboot required");
+        }
+        return ok;
+    }
+
+    streaming::emit_line(
+        &app,
+        &session_id,
+        "bos-nvidia-setup not on PATH; installing via pacman and writing the env drop-in",
+    );
+    let packages = default_packages();
+    if !streaming::pacman_install(app.clone(), session_id.clone(), packages).await {
+        return false;
+    }
+    match write_nvidia_dropin() {
+        Ok(()) => {
+            streaming::emit_line(&app, &session_id, "wrote ~/.config/hypr/nvidia.lua");
+            streaming::emit_line(&app, &session_id, "reboot required");
+            true
+        }
+        Err(e) => {
+            streaming::emit_line(&app, &session_id, &format!("Error: {e}"));
+            false
+        }
+    }
+}
+
+fn write_nvidia_dropin() -> Result<(), String> {
+    let dir = util::hypr_dir();
+    std::fs::create_dir_all(&dir).map_err(|e| e.to_string())?;
+    let path = dir.join("nvidia.lua");
+    super::config::atomic_write(&path, NVIDIA_LUA).map_err(|e| e.to_string())?;
+    ensure_hyprland_include()?;
+    Ok(())
+}
+
+fn include_already_present(text: &str) -> bool {
+    text.contains("nvidia.lua")
+}
+
+fn ensure_hyprland_include() -> Result<(), String> {
+    let path = util::hypr_dir().join("hyprland.lua");
+    let existing = std::fs::read_to_string(&path).unwrap_or_default();
+    if include_already_present(&existing) {
+        return Ok(());
+    }
+    if existing.is_empty() {
+        return Ok(());
+    }
+    let mut text = existing;
+    if !text.ends_with('\n') {
+        text.push('\n');
+    }
+    text.push('\n');
+    text.push_str(HYPR_INCLUDE);
+    if !text.ends_with('\n') {
+        text.push('\n');
+    }
+    super::config::atomic_write(&path, &text).map_err(|e| e.to_string())
+}
+
 #[cfg(test)]
 mod tests {
+    use super::*;
+
     #[test]
     fn missing_file_is_none() {
         // This machine's real probe path is not something the unit test
@@ -103,4 +229,32 @@ mod tests {
         assert!(hide(r#"{"dismissed":true}"#));
         assert!(!hide(r#"{"gpu":"RTX 4060"}"#));
     }
+
+    #[test]
+    fn dropin_has_current_wiki_env_and_no_obsolete_vars() {
+        assert!(NVIDIA_LUA.contains("LIBVA_DRIVER_NAME"));
+        assert!(NVIDIA_LUA.contains("__GLX_VENDOR_LIBRARY_NAME"));
+        assert!(NVIDIA_LUA.contains("NVD_BACKEND"));
+        assert!(!NVIDIA_LUA.contains("hl.env(\"WLR_"));
+        assert!(!NVIDIA_LUA.contains("hl.env(\"GBM_BACKEND"));
+        assert!(!NVIDIA_LUA.contains("cuda"));
+    }
+
+    #[test]
+    fn include_snippet_is_conditional() {
+        assert!(HYPR_INCLUDE.contains("nvidia.lua"));
+        assert!(HYPR_INCLUDE.contains("io.open"));
+        assert!(HYPR_INCLUDE.contains("pcall(dofile"));
+    }
+
+    #[test]
+    fn include_detects_existing_snippet() {
+        assert!(include_already_present("pcall(dofile, nvidia.lua)"));
+        assert!(!include_already_present("hl.env(\"XCURSOR_SIZE\", \"24\")"));
+    }
+
+    #[test]
+    fn packages_are_nvidia_and_utils_only() {
+        assert_eq!(NVIDIA_PACKAGES, &["nvidia", "nvidia-utils"]);
+    }
 }

src/src/lib.rs

@@ -115,6 +115,7 @@ pub fn run() {
             commands::breadhelp::open_breadhelp,
             commands::updates::get_updates_status,
             commands::nvidia::get_nvidia_offer,
+            commands::nvidia::nvidia_setup,
             commands::printing::get_printers,
             commands::printing::set_default_printer,
             commands::printing::add_ipp_printer,