feat: portable build

src-tauri/src/app_auto_updater.rs

@@ -1604,6 +1604,10 @@ rm "{}"
 
 #[tauri::command]
 pub async fn check_for_app_updates() -> Result<Option<AppUpdateInfo>, String> {
+  if crate::app_dirs::is_portable() {
+    log::info!("App auto-updates disabled in portable mode");
+    return Ok(None);
+  }
   // The disable_auto_updates setting controls app self-updates only
   let disabled = crate::settings_manager::SettingsManager::instance()
     .load_settings()

src-tauri/src/app_dirs.rs

@@ -3,11 +3,29 @@ use std::path::PathBuf;
 use std::sync::OnceLock;
 
 static BASE_DIRS: OnceLock<BaseDirs> = OnceLock::new();
+static PORTABLE_DIR: OnceLock<Option<PathBuf>> = OnceLock::new();
 
 fn base_dirs() -> &'static BaseDirs {
   BASE_DIRS.get_or_init(|| BaseDirs::new().expect("Failed to get base directories"))
 }
 
+/// Returns the portable base directory if a `.portable` marker exists next to the executable.
+fn portable_dir() -> Option<&'static PathBuf> {
+  PORTABLE_DIR
+    .get_or_init(|| {
+      std::env::current_exe()
+        .ok()
+        .and_then(|exe| exe.parent().map(|p| p.to_path_buf()))
+        .filter(|dir| dir.join(".portable").exists())
+    })
+    .as_ref()
+}
+
+/// Returns true if the app is running in portable mode.
+pub fn is_portable() -> bool {
+  portable_dir().is_some()
+}
+
 pub fn app_name() -> &'static str {
   if cfg!(debug_assertions) {
     "DonutBrowserDev"
@@ -28,6 +46,10 @@ pub fn data_dir() -> PathBuf {
     return PathBuf::from(dir);
   }
 
+  if let Some(dir) = portable_dir() {
+    return dir.join("data");
+  }
+
   base_dirs().data_local_dir().join(app_name())
 }
 
@@ -43,6 +65,10 @@ pub fn cache_dir() -> PathBuf {
     return PathBuf::from(dir);
   }
 
+  if let Some(dir) = portable_dir() {
+    return dir.join("cache");
+  }
+
   base_dirs().cache_dir().join(app_name())
 }
 

src-tauri/src/daemon/autostart.rs

@@ -340,6 +340,9 @@ pub fn is_autostart_enabled() -> bool {
 }
 
 pub fn get_data_dir() -> Option<PathBuf> {
+  if crate::app_dirs::is_portable() {
+    return Some(crate::app_dirs::data_dir());
+  }
   if let Some(proj_dirs) = ProjectDirs::from("com", "donutbrowser", "Donut Browser") {
     Some(proj_dirs.data_dir().to_path_buf())
   } else {

src-tauri/src/settings_manager.rs

@@ -950,6 +950,7 @@ pub struct SystemInfo {
   pub app_version: String,
   pub os: String,
   pub arch: String,
+  pub portable: bool,
 }
 
 #[tauri::command]
@@ -976,6 +977,7 @@ pub fn get_system_info() -> SystemInfo {
     app_version: crate::app_auto_updater::AppAutoUpdater::get_current_version(),
     os: os.to_string(),
     arch: arch.to_string(),
+    portable: crate::app_dirs::is_portable(),
   }
 }