fix(desktop): improve server detection & connection logic (#7962)

packages/desktop/src-tauri/src/cli.rs

@@ -1,8 +1,30 @@
-use tauri::Manager;
+use tauri::{path::BaseDirectory, AppHandle, Manager};
+use tauri_plugin_shell::{process::Command, ShellExt};
 
 const CLI_INSTALL_DIR: &str = ".opencode/bin";
 const CLI_BINARY_NAME: &str = "opencode";
 
+#[derive(serde::Deserialize)]
+pub struct ServerConfig {
+    pub hostname: Option<String>,
+    pub port: Option<u32>,
+}
+
+#[derive(serde::Deserialize)]
+pub struct Config {
+    pub server: Option<ServerConfig>,
+}
+
+pub async fn get_config(app: &AppHandle) -> Option<Config> {
+    create_command(app, "debug config")
+        .output()
+        .await
+        .inspect_err(|e| eprintln!("Failed to read OC config: {e}"))
+        .ok()
+        .and_then(|out| String::from_utf8(out.stdout.to_vec()).ok())
+        .and_then(|s| serde_json::from_str::<Config>(&s).ok())
+}
+
 fn get_cli_install_path() -> Option<std::path::PathBuf> {
     std::env::var("HOME").ok().map(|home| {
         std::path::PathBuf::from(home)
@@ -117,3 +139,35 @@ pub fn sync_cli(app: tauri::AppHandle) -> Result<(), String> {
 
     Ok(())
 }
+
+fn get_user_shell() -> String {
+    std::env::var("SHELL").unwrap_or_else(|_| "/bin/sh".to_string())
+}
+
+pub fn create_command(app: &tauri::AppHandle, args: &str) -> Command {
+    let state_dir = app
+        .path()
+        .resolve("", BaseDirectory::AppLocalData)
+        .expect("Failed to resolve app local data dir");
+
+    #[cfg(target_os = "windows")]
+    return app
+        .shell()
+        .sidecar("opencode-cli")
+        .unwrap()
+        .env("OPENCODE_EXPERIMENTAL_ICON_DISCOVERY", "true")
+        .env("OPENCODE_CLIENT", "desktop")
+        .env("XDG_STATE_HOME", &state_dir);
+
+    #[cfg(not(target_os = "windows"))]
+    return {
+        let sidecar = get_sidecar_path(app);
+        let shell = get_user_shell();
+        app.shell()
+            .command(&shell)
+            .env("OPENCODE_EXPERIMENTAL_ICON_DISCOVERY", "true")
+            .env("OPENCODE_CLIENT", "desktop")
+            .env("XDG_STATE_HOME", &state_dir)
+            .args(["-il", "-c", &format!("\"{}\" {}", sidecar.display(), args)])
+    };
+}