From 993179c25ec4ed3249bb66d4634222ec340decae Mon Sep 17 00:00:00 2001
From: Christoph Brandau <c.brandau91@gmail.com>
Date: Sun, 16 Aug 2026 15:54:54 +0200
Subject: [PATCH] feat(startup): wire startup repo path from CLI to UI

The app now supports opening a repository at startup by
reading a --repo argument and passing the path to the UI.
A new startup repository state is managed in the backend and
exposed via a tauri command and event, enabling the frontend
to auto-open the repository when ready. The UI adds a small
startup flow with retry handling to ensure the path is
consumed once available.
- Reads --repo or --repo=PATH and resolves relative paths
- Signals UI to open startup repo via open-startup-repository
- Frontend retries opening the repo until it succeeds
---
 src-tauri/src/main.rs | 89 +++++++++++++++++++++++++++++++++++++++++--
 src/App.svelte        | 40 +++++++++++++++++++
 2 files changed, 126 insertions(+), 3 deletions(-)

diff --git a/src-tauri/src/main.rs b/src-tauri/src/main.rs
index 619935a..7e1f60e 100644
--- a/src-tauri/src/main.rs
+++ b/src-tauri/src/main.rs
@@ -31,9 +31,79 @@ use git::{
     stash_drop, stash_pop, stash_push, undo_last_commit, unlock_worktree, unstage_files,
     update_remote,
 };
-use tauri::Manager;
+use std::path::{Path, PathBuf};
+use std::sync::Mutex;
+use tauri::{Emitter, Manager};
 use telemetry::{emit_frontend_log, emit_frontend_span, set_telemetry_enabled};
 
+struct StartupRepository(Mutex<Option<String>>);
+
+fn repository_path_from_args(args: impl IntoIterator<Item = String>, cwd: &Path) -> Option<String> {
+    let mut args = args.into_iter();
+    let mut repository = None;
+
+    while let Some(arg) = args.next() {
+        if arg == "--repo" {
+            repository = args.next();
+            break;
+        }
+        if let Some(path) = arg.strip_prefix("--repo=") {
+            repository = Some(path.to_string());
+            break;
+        }
+        if !arg.starts_with('-') {
+            repository = Some(arg);
+            break;
+        }
+    }
+
+    repository.filter(|path| !path.trim().is_empty()).map(|path| {
+        let path = PathBuf::from(path);
+        if path.is_absolute() {
+            path
+        } else {
+            cwd.join(path)
+        }
+        .to_string_lossy()
+        .into_owned()
+    })
+}
+
+#[cfg(test)]
+mod startup_repository_tests {
+    use super::repository_path_from_args;
+    use std::path::Path;
+
+    #[test]
+    fn accepts_direct_relative_repository_path() {
+        let path = repository_path_from_args(["projects/repo".to_string()], Path::new("/home/user"));
+        assert_eq!(path.as_deref(), Some("/home/user/projects/repo"));
+    }
+
+    #[test]
+    fn accepts_repo_option() {
+        let path = repository_path_from_args(
+            ["--repo".to_string(), "/projects/repo".to_string()],
+            Path::new("/home/user"),
+        );
+        assert_eq!(path.as_deref(), Some("/projects/repo"));
+    }
+
+    #[test]
+    fn accepts_repo_equals_option() {
+        let path = repository_path_from_args(
+            ["--repo=projects/repo".to_string()],
+            Path::new("/home/user"),
+        );
+        assert_eq!(path.as_deref(), Some("/home/user/projects/repo"));
+    }
+}
+
+#[tauri::command]
+fn take_startup_repository(state: tauri::State<'_, StartupRepository>) -> Option<String> {
+    state.0.lock().ok()?.take()
+}
+
 struct ConsoleLogger;
 
 impl log::Log for ConsoleLogger {
@@ -96,8 +166,19 @@ async fn main() {
         return;
     }
 
+    let startup_repository = repository_path_from_args(
+        std::env::args().skip(1),
+        &std::env::current_dir().unwrap_or_default(),
+    );
+
     let builder = tauri::Builder::default()
-        .plugin(tauri_plugin_single_instance::init(|app, _, _| {
+        .plugin(tauri_plugin_single_instance::init(|app, args, cwd| {
+            if let Some(path) = repository_path_from_args(args.into_iter().skip(1), Path::new(&cwd)) {
+                if let Ok(mut pending) = app.state::<StartupRepository>().0.lock() {
+                    *pending = Some(path);
+                }
+                let _ = app.emit("open-startup-repository", ());
+            }
             #[cfg(desktop)]
             let _ = app
                 .get_webview_window("main")
@@ -112,6 +193,7 @@ async fn main() {
                 })
                 .build(),
         )
+        .manage(StartupRepository(Mutex::new(startup_repository)))
         .manage(SearchCancellationState::default())
         .manage(commit_ai::CommitAiEngine::new())
         .plugin(tauri_plugin_dialog::init());
@@ -226,7 +308,8 @@ async fn main() {
             close_splashscreen,
             set_telemetry_enabled,
             emit_frontend_log,
-            emit_frontend_span
+            emit_frontend_span,
+            take_startup_repository
         ])
         .run(tauri::generate_context!())
         .expect("error while running tauri application");
diff --git a/src/App.svelte b/src/App.svelte
index d323ec4..bdcb4bd 100644
--- a/src/App.svelte
+++ b/src/App.svelte
@@ -1,6 +1,7 @@
 <script lang="ts">
   import { onDestroy, onMount, tick } from "svelte";
   import { getVersion } from "@tauri-apps/api/app";
+  import { listen } from "@tauri-apps/api/event";
   import { getCurrentWindow } from "@tauri-apps/api/window";
   import { open as openDialog } from "@tauri-apps/plugin-dialog";
   import { check, type DownloadEvent, type Update } from "@tauri-apps/plugin-updater";
@@ -275,6 +276,10 @@
   // ── State ──────────────────────────────────────────────────────────────────
 
   let repoPath = "";
+  let startupReady = false;
+  let pendingStartupRepoPath = "";
+  let startupRepositoryRetryTimer: ReturnType<typeof setTimeout> | undefined;
+  let unlistenStartupRepository: (() => void) | undefined;
   let activeRepoPath = "";
   let activeView: AppView = "management";
   let repoTabs: RepoTab[] = [];
@@ -543,6 +548,14 @@
     themeMediaQuery = window.matchMedia("(prefers-color-scheme: light)");
     themeMediaQuery.addEventListener("change", handleSystemThemeChange);
     void runStartupSequence();
+    void listen("open-startup-repository", () => {
+      void receiveStartupRepository();
+    }).then((unlisten) => {
+      if (appShuttingDown) unlisten();
+      else unlistenStartupRepository = unlisten;
+    }).catch(() => {
+      // Browser preview has no Tauri event system.
+    });
     void refreshDetectedExternalTools();
     void getVersion().then((version) => { appVersion = version; }).catch(() => { appVersion = ""; });
     window.addEventListener("beforeunload", handleAppShutdown);
@@ -565,7 +578,9 @@
     window.removeEventListener("beforeunload", handleAppShutdown);
     window.removeEventListener("pagehide", handleAppShutdown);
     unlistenCloseRequested?.();
+    unlistenStartupRepository?.();
     if (cloneDialogErrorTimer) clearTimeout(cloneDialogErrorTimer);
+    if (startupRepositoryRetryTimer) clearTimeout(startupRepositoryRetryTimer);
     Object.values(errorAutoHideStates).forEach((state) => {
       if (state?.timer) clearTimeout(state.timer);
     });
@@ -642,6 +657,8 @@
       if (remainingSplashTime > 0) await wait(remainingSplashTime);
 
       await closeStartupSplashscreen();
+      startupReady = true;
+      await receiveStartupRepository();
       startBackgroundTimers();
       // Remote access can take seconds (offline networks, SSH negotiation,
       // credential helpers). It must never hold the startup screen hostage.
@@ -650,6 +667,29 @@
     }
   }
 
+  async function receiveStartupRepository() {
+    try {
+      const path = await tracedInvoke<string | null>("take_startup_repository");
+      if (path) pendingStartupRepoPath = path;
+    } catch {
+      return;
+    }
+
+    if (!startupReady || !pendingStartupRepoPath) return;
+    if (isBusy) {
+      if (!startupRepositoryRetryTimer) {
+        startupRepositoryRetryTimer = setTimeout(() => {
+          startupRepositoryRetryTimer = undefined;
+          void receiveStartupRepository();
+        }, 100);
+      }
+      return;
+    }
+    const path = pendingStartupRepoPath;
+    pendingStartupRepoPath = "";
+    await openRepo(path);
+  }
+
   async function fetchOpenRepositoriesDuringStartup() {
     const paths = uniqueRepoPaths(repoTabs.map((tab) => tab.path));
     if (paths.length === 0 || backgroundFetchInFlight) return;