WIP

crates/zed2/src/main.rs

@@ -0,0 +1,912 @@
+// Allow binary to be called Zed for a nice application menu when running executable directly
+#![allow(non_snake_case)]
+
+use crate::open_listener::{OpenListener, OpenRequest};
+use anyhow::{anyhow, Context, Result};
+use cli::{
+    ipc::{self, IpcSender},
+    CliRequest, CliResponse, IpcHandshake, FORCE_CLI_MODE_ENV_VAR_NAME,
+};
+use fs::RealFs;
+use futures::{channel::mpsc, SinkExt, StreamExt};
+use gpui2::{App, AsyncAppContext, Task};
+use log::LevelFilter;
+
+use parking_lot::Mutex;
+use serde::{Deserialize, Serialize};
+use settings::{default_settings, handle_settings_file_changes, watch_config_file, SettingsStore};
+use simplelog::ConfigBuilder;
+use smol::process::Command;
+use std::{
+    collections::HashMap,
+    env,
+    fs::OpenOptions,
+    io::IsTerminal,
+    path::Path,
+    sync::{
+        atomic::{AtomicU32, Ordering},
+        Arc, Weak,
+    },
+    thread,
+};
+use util::{channel::RELEASE_CHANNEL, http, paths, ResultExt};
+use zed2::{ensure_only_instance, AppState, Assets, IsOnlyInstance};
+// use zed2::{
+//     assets::Assets,
+//     build_window_options, handle_keymap_file_changes, initialize_workspace, languages, menus,
+//     only_instance::{ensure_only_instance, IsOnlyInstance},
+// };
+
+mod open_listener;
+
+fn main() {
+    let http = http::client();
+    init_paths();
+    init_logger();
+
+    if ensure_only_instance() != IsOnlyInstance::Yes {
+        return;
+    }
+
+    log::info!("========== starting zed ==========");
+    let mut app = App::production(Arc::new(Assets));
+
+    // let installation_id = app.background().block(installation_id()).ok();
+    // let session_id = Uuid::new_v4().to_string();
+    // init_panic_hook(&app, installation_id.clone(), session_id.clone());
+
+    load_embedded_fonts(&app);
+
+    let fs = Arc::new(RealFs);
+    let user_settings_file_rx =
+        watch_config_file(app.executor(), fs.clone(), paths::SETTINGS.clone());
+    let user_keymap_file_rx = watch_config_file(app.executor(), fs.clone(), paths::KEYMAP.clone());
+
+    let login_shell_env_loaded = if stdout_is_a_pty() {
+        Task::ready(())
+    } else {
+        app.executor().spawn(async {
+            load_login_shell_environment().await.log_err();
+        })
+    };
+
+    let (listener, mut open_rx) = OpenListener::new();
+    let listener = Arc::new(listener);
+    let callback_listener = listener.clone();
+    app.on_open_urls(move |urls, _| callback_listener.open_urls(urls))
+        .on_reopen(move |cx| {
+            if cx.has_global::<Weak<AppState>>() {
+                if let Some(app_state) = cx.global::<Weak<AppState>>().upgrade() {
+                    // todo!("workspace")
+                    // workspace::open_new(&app_state, cx, |workspace, cx| {
+                    //     Editor::new_file(workspace, &Default::default(), cx)
+                    // })
+                    // .detach();
+                }
+            }
+        });
+
+    app.run(move |cx| {
+        cx.set_global(*RELEASE_CHANNEL);
+
+        let mut store = SettingsStore::default();
+        store
+            .set_default_settings(default_settings().as_ref(), cx)
+            .unwrap();
+        cx.set_global(store);
+        handle_settings_file_changes(user_settings_file_rx, cx);
+        // handle_keymap_file_changes(user_keymap_file_rx, cx);
+
+        // let client = client::Client::new(http.clone(), cx);
+        // let mut languages = LanguageRegistry::new(login_shell_env_loaded);
+        // let copilot_language_server_id = languages.next_language_server_id();
+        // languages.set_executor(cx.background().clone());
+        // languages.set_language_server_download_dir(paths::LANGUAGES_DIR.clone());
+        // let languages = Arc::new(languages);
+        // let node_runtime = RealNodeRuntime::new(http.clone());
+
+        // languages::init(languages.clone(), node_runtime.clone(), cx);
+        // let user_store = cx.add_model(|cx| UserStore::new(client.clone(), http.clone(), cx));
+        // let workspace_store = cx.add_model(|cx| WorkspaceStore::new(client.clone(), cx));
+
+        // cx.set_global(client.clone());
+
+        // theme::init(Assets, cx);
+        // context_menu::init(cx);
+        // project::Project::init(&client, cx);
+        // client::init(&client, cx);
+        // command_palette::init(cx);
+        // language::init(cx);
+        // editor::init(cx);
+        // go_to_line::init(cx);
+        // file_finder::init(cx);
+        // outline::init(cx);
+        // project_symbols::init(cx);
+        // project_panel::init(Assets, cx);
+        // channel::init(&client, user_store.clone(), cx);
+        // diagnostics::init(cx);
+        // search::init(cx);
+        // semantic_index::init(fs.clone(), http.clone(), languages.clone(), cx);
+        // vim::init(cx);
+        // terminal_view::init(cx);
+        // copilot::init(
+        //     copilot_language_server_id,
+        //     http.clone(),
+        //     node_runtime.clone(),
+        //     cx,
+        // );
+        // assistant::init(cx);
+        // component_test::init(cx);
+
+        // cx.spawn(|cx| watch_themes(fs.clone(), cx)).detach();
+        // cx.spawn(|_| watch_languages(fs.clone(), languages.clone()))
+        //     .detach();
+        // watch_file_types(fs.clone(), cx);
+
+        // languages.set_theme(theme::current(cx).clone());
+        // cx.observe_global::<SettingsStore, _>({
+        //     let languages = languages.clone();
+        //     move |cx| languages.set_theme(theme::current(cx).clone())
+        // })
+        // .detach();
+
+        // client.telemetry().start(installation_id, session_id, cx);
+
+        // todo!("app_state")
+        let app_state = Arc::new(AppState);
+        // let app_state = Arc::new(AppState {
+        //     languages,
+        //     client: client.clone(),
+        //     user_store,
+        //     fs,
+        //     build_window_options,
+        //     initialize_workspace,
+        //     background_actions,
+        //     workspace_store,
+        //     node_runtime,
+        // });
+        // cx.set_global(Arc::downgrade(&app_state));
+
+        // audio::init(Assets, cx);
+        // auto_update::init(http.clone(), client::ZED_SERVER_URL.clone(), cx);
+
+        // todo!("workspace")
+        // workspace::init(app_state.clone(), cx);
+        // recent_projects::init(cx);
+
+        // journal::init(app_state.clone(), cx);
+        // language_selector::init(cx);
+        // theme_selector::init(cx);
+        // activity_indicator::init(cx);
+        // language_tools::init(cx);
+        // call::init(app_state.client.clone(), app_state.user_store.clone(), cx);
+        // collab_ui::init(&app_state, cx);
+        // feedback::init(cx);
+        // welcome::init(cx);
+        // zed::init(&app_state, cx);
+
+        // cx.set_menus(menus::menus());
+
+        if stdout_is_a_pty() {
+            cx.activate(true);
+            let urls = collect_url_args();
+            if !urls.is_empty() {
+                listener.open_urls(urls)
+            }
+        } else {
+            upload_previous_panics(http.clone(), cx);
+
+            // TODO Development mode that forces the CLI mode usually runs Zed binary as is instead
+            // of an *app, hence gets no specific callbacks run. Emulate them here, if needed.
+            if std::env::var(FORCE_CLI_MODE_ENV_VAR_NAME).ok().is_some()
+                && !listener.triggered.load(Ordering::Acquire)
+            {
+                listener.open_urls(collect_url_args())
+            }
+        }
+
+        let mut triggered_authentication = false;
+
+        match open_rx.try_next() {
+            Ok(Some(OpenRequest::Paths { paths })) => {
+                // todo!("workspace")
+                // cx.update(|cx| workspace::open_paths(&paths, &app_state, None, cx))
+                //     .detach();
+            }
+            Ok(Some(OpenRequest::CliConnection { connection })) => {
+                cx.spawn(|cx| handle_cli_connection(connection, app_state.clone(), cx))
+                    .detach();
+            }
+            Ok(Some(OpenRequest::JoinChannel { channel_id })) => {
+                // triggered_authentication = true;
+                // let app_state = app_state.clone();
+                // let client = client.clone();
+                // cx.spawn(|mut cx| async move {
+                //     // ignore errors here, we'll show a generic "not signed in"
+                //     let _ = authenticate(client, &cx).await;
+                //     cx.update(|cx| workspace::join_channel(channel_id, app_state, None, cx))
+                //         .await
+                // })
+                // .detach_and_log_err(cx)
+            }
+            Ok(None) | Err(_) => cx
+                .spawn({
+                    let app_state = app_state.clone();
+                    |cx| async move { restore_or_create_workspace(&app_state, cx).await }
+                })
+                .detach(),
+        }
+
+        cx.spawn(|mut cx| {
+            let app_state = app_state.clone();
+            async move {
+                while let Some(request) = open_rx.next().await {
+                    match request {
+                        OpenRequest::Paths { paths } => {
+                            // todo!("workspace")
+                            // cx.update(|cx| workspace::open_paths(&paths, &app_state, None, cx))
+                            //     .detach();
+                        }
+                        OpenRequest::CliConnection { connection } => {
+                            cx.spawn(|cx| handle_cli_connection(connection, app_state.clone(), cx))
+                                .detach();
+                        }
+                        OpenRequest::JoinChannel { channel_id } => {
+                            // cx
+                            // .update(|cx| {
+                            //     workspace::join_channel(channel_id, app_state.clone(), None, cx)
+                            // })
+                            // .detach()
+                        }
+                    }
+                }
+            }
+        })
+        .detach();
+
+        // if !triggered_authentication {
+        //     cx.spawn(|cx| async move { authenticate(client, &cx).await })
+        //         .detach_and_log_err(cx);
+        // }
+    });
+}
+
+// async fn authenticate(client: Arc<Client>, cx: &AsyncAppContext) -> Result<()> {
+//     if stdout_is_a_pty() {
+//         if client::IMPERSONATE_LOGIN.is_some() {
+//             client.authenticate_and_connect(false, &cx).await?;
+//         }
+//     } else if client.has_keychain_credentials(&cx) {
+//         client.authenticate_and_connect(true, &cx).await?;
+//     }
+//     Ok::<_, anyhow::Error>(())
+// }
+
+// async fn installation_id() -> Result<String> {
+//     let legacy_key_name = "device_id";
+
+//     if let Ok(Some(installation_id)) = KEY_VALUE_STORE.read_kvp(legacy_key_name) {
+//         Ok(installation_id)
+//     } else {
+//         let installation_id = Uuid::new_v4().to_string();
+
+//         KEY_VALUE_STORE
+//             .write_kvp(legacy_key_name.to_string(), installation_id.clone())
+//             .await?;
+
+//         Ok(installation_id)
+//     }
+// }
+
+async fn restore_or_create_workspace(app_state: &Arc<AppState>, mut cx: AsyncAppContext) {
+    todo!("workspace")
+    // if let Some(location) = workspace::last_opened_workspace_paths().await {
+    //     cx.update(|cx| workspace::open_paths(location.paths().as_ref(), app_state, None, cx))
+    //         .await
+    //         .log_err();
+    // } else if matches!(KEY_VALUE_STORE.read_kvp(FIRST_OPEN), Ok(None)) {
+    //     cx.update(|cx| show_welcome_experience(app_state, cx));
+    // } else {
+    //     cx.update(|cx| {
+    //         workspace::open_new(app_state, cx, |workspace, cx| {
+    //             Editor::new_file(workspace, &Default::default(), cx)
+    //         })
+    //         .detach();
+    //     });
+    // }
+}
+
+fn init_paths() {
+    std::fs::create_dir_all(&*util::paths::CONFIG_DIR).expect("could not create config path");
+    std::fs::create_dir_all(&*util::paths::LANGUAGES_DIR).expect("could not create languages path");
+    std::fs::create_dir_all(&*util::paths::DB_DIR).expect("could not create database path");
+    std::fs::create_dir_all(&*util::paths::LOGS_DIR).expect("could not create logs path");
+}
+
+fn init_logger() {
+    if stdout_is_a_pty() {
+        env_logger::init();
+    } else {
+        let level = LevelFilter::Info;
+
+        // Prevent log file from becoming too large.
+        const KIB: u64 = 1024;
+        const MIB: u64 = 1024 * KIB;
+        const MAX_LOG_BYTES: u64 = MIB;
+        if std::fs::metadata(&*paths::LOG).map_or(false, |metadata| metadata.len() > MAX_LOG_BYTES)
+        {
+            let _ = std::fs::rename(&*paths::LOG, &*paths::OLD_LOG);
+        }
+
+        let log_file = OpenOptions::new()
+            .create(true)
+            .append(true)
+            .open(&*paths::LOG)
+            .expect("could not open logfile");
+
+        let config = ConfigBuilder::new()
+            .set_time_format_str("%Y-%m-%dT%T") //All timestamps are UTC
+            .build();
+
+        simplelog::WriteLogger::init(level, config, log_file).expect("could not initialize logger");
+    }
+}
+
+#[derive(Serialize, Deserialize)]
+struct LocationData {
+    file: String,
+    line: u32,
+}
+
+#[derive(Serialize, Deserialize)]
+struct Panic {
+    thread: String,
+    payload: String,
+    #[serde(skip_serializing_if = "Option::is_none")]
+    location_data: Option<LocationData>,
+    backtrace: Vec<String>,
+    app_version: String,
+    release_channel: String,
+    os_name: String,
+    os_version: Option<String>,
+    architecture: String,
+    panicked_on: u128,
+    #[serde(skip_serializing_if = "Option::is_none")]
+    installation_id: Option<String>,
+    session_id: String,
+}
+
+#[derive(Serialize)]
+struct PanicRequest {
+    panic: Panic,
+    token: String,
+}
+
+static PANIC_COUNT: AtomicU32 = AtomicU32::new(0);
+
+// fn init_panic_hook(app: &App, installation_id: Option<String>, session_id: String) {
+//     let is_pty = stdout_is_a_pty();
+//     let platform = app.platform();
+
+//     panic::set_hook(Box::new(move |info| {
+//         let prior_panic_count = PANIC_COUNT.fetch_add(1, Ordering::SeqCst);
+//         if prior_panic_count > 0 {
+//             // Give the panic-ing thread time to write the panic file
+//             loop {
+//                 std::thread::yield_now();
+//             }
+//         }
+
+//         let thread = thread::current();
+//         let thread_name = thread.name().unwrap_or("<unnamed>");
+
+//         let payload = info
+//             .payload()
+//             .downcast_ref::<&str>()
+//             .map(|s| s.to_string())
+//             .or_else(|| info.payload().downcast_ref::<String>().map(|s| s.clone()))
+//             .unwrap_or_else(|| "Box<Any>".to_string());
+
+//         if *util::channel::RELEASE_CHANNEL == ReleaseChannel::Dev {
+//             let location = info.location().unwrap();
+//             let backtrace = Backtrace::new();
+//             eprintln!(
+//                 "Thread {:?} panicked with {:?} at {}:{}:{}\n{:?}",
+//                 thread_name,
+//                 payload,
+//                 location.file(),
+//                 location.line(),
+//                 location.column(),
+//                 backtrace,
+//             );
+//             std::process::exit(-1);
+//         }
+
+//         let app_version = ZED_APP_VERSION
+//             .or_else(|| platform.app_version().ok())
+//             .map_or("dev".to_string(), |v| v.to_string());
+
+//         let backtrace = Backtrace::new();
+//         let mut backtrace = backtrace
+//             .frames()
+//             .iter()
+//             .filter_map(|frame| Some(format!("{:#}", frame.symbols().first()?.name()?)))
+//             .collect::<Vec<_>>();
+
+//         // Strip out leading stack frames for rust panic-handling.
+//         if let Some(ix) = backtrace
+//             .iter()
+//             .position(|name| name == "rust_begin_unwind")
+//         {
+//             backtrace.drain(0..=ix);
+//         }
+
+//         let panic_data = Panic {
+//             thread: thread_name.into(),
+//             payload: payload.into(),
+//             location_data: info.location().map(|location| LocationData {
+//                 file: location.file().into(),
+//                 line: location.line(),
+//             }),
+//             app_version: app_version.clone(),
+//             release_channel: RELEASE_CHANNEL.display_name().into(),
+//             os_name: platform.os_name().into(),
+//             os_version: platform
+//                 .os_version()
+//                 .ok()
+//                 .map(|os_version| os_version.to_string()),
+//             architecture: env::consts::ARCH.into(),
+//             panicked_on: SystemTime::now()
+//                 .duration_since(UNIX_EPOCH)
+//                 .unwrap()
+//                 .as_millis(),
+//             backtrace,
+//             installation_id: installation_id.clone(),
+//             session_id: session_id.clone(),
+//         };
+
+//         if let Some(panic_data_json) = serde_json::to_string_pretty(&panic_data).log_err() {
+//             log::error!("{}", panic_data_json);
+//         }
+
+//         if !is_pty {
+//             if let Some(panic_data_json) = serde_json::to_string(&panic_data).log_err() {
+//                 let timestamp = chrono::Utc::now().format("%Y_%m_%d %H_%M_%S").to_string();
+//                 let panic_file_path = paths::LOGS_DIR.join(format!("zed-{}.panic", timestamp));
+//                 let panic_file = std::fs::OpenOptions::new()
+//                     .append(true)
+//                     .create(true)
+//                     .open(&panic_file_path)
+//                     .log_err();
+//                 if let Some(mut panic_file) = panic_file {
+//                     writeln!(&mut panic_file, "{}", panic_data_json).log_err();
+//                     panic_file.flush().log_err();
+//                 }
+//             }
+//         }
+
+//         std::process::abort();
+//     }));
+// }
+
+// fn upload_previous_panics(http: Arc<dyn HttpClient>, cx: &mut AppContext) {
+//     let telemetry_settings = *settings::get::<TelemetrySettings>(cx);
+
+//     cx.background()
+//         .spawn({
+//             async move {
+//                 let panic_report_url = format!("{}/api/panic", &*client::ZED_SERVER_URL);
+//                 let mut children = smol::fs::read_dir(&*paths::LOGS_DIR).await?;
+//                 while let Some(child) = children.next().await {
+//                     let child = child?;
+//                     let child_path = child.path();
+
+//                     if child_path.extension() != Some(OsStr::new("panic")) {
+//                         continue;
+//                     }
+//                     let filename = if let Some(filename) = child_path.file_name() {
+//                         filename.to_string_lossy()
+//                     } else {
+//                         continue;
+//                     };
+
+//                     if !filename.starts_with("zed") {
+//                         continue;
+//                     }
+
+//                     if telemetry_settings.diagnostics {
+//                         let panic_file_content = smol::fs::read_to_string(&child_path)
+//                             .await
+//                             .context("error reading panic file")?;
+
+//                         let panic = serde_json::from_str(&panic_file_content)
+//                             .ok()
+//                             .or_else(|| {
+//                                 panic_file_content
+//                                     .lines()
+//                                     .next()
+//                                     .and_then(|line| serde_json::from_str(line).ok())
+//                             })
+//                             .unwrap_or_else(|| {
+//                                 log::error!(
+//                                     "failed to deserialize panic file {:?}",
+//                                     panic_file_content
+//                                 );
+//                                 None
+//                             });
+
+//                         if let Some(panic) = panic {
+//                             let body = serde_json::to_string(&PanicRequest {
+//                                 panic,
+//                                 token: ZED_SECRET_CLIENT_TOKEN.into(),
+//                             })
+//                             .unwrap();
+
+//                             let request = Request::post(&panic_report_url)
+//                                 .redirect_policy(isahc::config::RedirectPolicy::Follow)
+//                                 .header("Content-Type", "application/json")
+//                                 .body(body.into())?;
+//                             let response =
+//                                 http.send(request).await.context("error sending panic")?;
+//                             if !response.status().is_success() {
+//                                 log::error!(
+//                                     "Error uploading panic to server: {}",
+//                                     response.status()
+//                                 );
+//                             }
+//                         }
+//                     }
+
+//                     // We've done what we can, delete the file
+//                     std::fs::remove_file(child_path)
+//                         .context("error removing panic")
+//                         .log_err();
+//                 }
+//                 Ok::<_, anyhow::Error>(())
+//             }
+//             .log_err()
+//         })
+//         .detach();
+// }
+
+async fn load_login_shell_environment() -> Result<()> {
+    let marker = "ZED_LOGIN_SHELL_START";
+    let shell = env::var("SHELL").context(
+        "SHELL environment variable is not assigned so we can't source login environment variables",
+    )?;
+    let output = Command::new(&shell)
+        .args(["-lic", &format!("echo {marker} && /usr/bin/env -0")])
+        .output()
+        .await
+        .context("failed to spawn login shell to source login environment variables")?;
+    if !output.status.success() {
+        Err(anyhow!("login shell exited with error"))?;
+    }
+
+    let stdout = String::from_utf8_lossy(&output.stdout);
+
+    if let Some(env_output_start) = stdout.find(marker) {
+        let env_output = &stdout[env_output_start + marker.len()..];
+        for line in env_output.split_terminator('\0') {
+            if let Some(separator_index) = line.find('=') {
+                let key = &line[..separator_index];
+                let value = &line[separator_index + 1..];
+                env::set_var(key, value);
+            }
+        }
+        log::info!(
+            "set environment variables from shell:{}, path:{}",
+            shell,
+            env::var("PATH").unwrap_or_default(),
+        );
+    }
+
+    Ok(())
+}
+
+fn stdout_is_a_pty() -> bool {
+    std::env::var(FORCE_CLI_MODE_ENV_VAR_NAME).ok().is_none() && std::io::stdout().is_terminal()
+}
+
+fn collect_url_args() -> Vec<String> {
+    env::args()
+        .skip(1)
+        .filter_map(|arg| match std::fs::canonicalize(Path::new(&arg)) {
+            Ok(path) => Some(format!("file://{}", path.to_string_lossy())),
+            Err(error) => {
+                if let Some(_) = parse_zed_link(&arg) {
+                    Some(arg)
+                } else {
+                    log::error!("error parsing path argument: {}", error);
+                    None
+                }
+            }
+        })
+        .collect()
+}
+
+fn load_embedded_fonts(app: &App) {
+    let font_paths = Assets.list("fonts");
+    let embedded_fonts = Mutex::new(Vec::new());
+    smol::block_on(app.background().scoped(|scope| {
+        for font_path in &font_paths {
+            if !font_path.ends_with(".ttf") {
+                continue;
+            }
+
+            scope.spawn(async {
+                let font_path = &*font_path;
+                let font_bytes = Assets.load(font_path).unwrap().to_vec();
+                embedded_fonts.lock().push(Arc::from(font_bytes));
+            });
+        }
+    }));
+    app.platform()
+        .fonts()
+        .add_fonts(&embedded_fonts.into_inner())
+        .unwrap();
+}
+
+// #[cfg(debug_assertions)]
+// async fn watch_themes(fs: Arc<dyn Fs>, mut cx: AsyncAppContext) -> Option<()> {
+//     let mut events = fs
+//         .watch("styles/src".as_ref(), Duration::from_millis(100))
+//         .await;
+//     while (events.next().await).is_some() {
+//         let output = Command::new("npm")
+//             .current_dir("styles")
+//             .args(["run", "build"])
+//             .output()
+//             .await
+//             .log_err()?;
+//         if output.status.success() {
+//             cx.update(|cx| theme_selector::reload(cx))
+//         } else {
+//             eprintln!(
+//                 "build script failed {}",
+//                 String::from_utf8_lossy(&output.stderr)
+//             );
+//         }
+//     }
+//     Some(())
+// }
+
+// #[cfg(debug_assertions)]
+// async fn watch_languages(fs: Arc<dyn Fs>, languages: Arc<LanguageRegistry>) -> Option<()> {
+//     let mut events = fs
+//         .watch(
+//             "crates/zed/src/languages".as_ref(),
+//             Duration::from_millis(100),
+//         )
+//         .await;
+//     while (events.next().await).is_some() {
+//         languages.reload();
+//     }
+//     Some(())
+// }
+
+// #[cfg(debug_assertions)]
+// fn watch_file_types(fs: Arc<dyn Fs>, cx: &mut AppContext) {
+//     cx.spawn(|mut cx| async move {
+//         let mut events = fs
+//             .watch(
+//                 "assets/icons/file_icons/file_types.json".as_ref(),
+//                 Duration::from_millis(100),
+//             )
+//             .await;
+//         while (events.next().await).is_some() {
+//             cx.update(|cx| {
+//                 cx.update_global(|file_types, _| {
+//                     *file_types = project_panel::file_associations::FileAssociations::new(Assets);
+//                 });
+//             })
+//         }
+//     })
+//     .detach()
+// }
+
+// #[cfg(not(debug_assertions))]
+// async fn watch_themes(_fs: Arc<dyn Fs>, _cx: AsyncAppContext) -> Option<()> {
+//     None
+// }
+
+// #[cfg(not(debug_assertions))]
+// async fn watch_languages(_: Arc<dyn Fs>, _: Arc<LanguageRegistry>) -> Option<()> {
+//     None
+// }
+
+// #[cfg(not(debug_assertions))]
+// fn watch_file_types(_fs: Arc<dyn Fs>, _cx: &mut AppContext) {}
+
+fn connect_to_cli(
+    server_name: &str,
+) -> Result<(mpsc::Receiver<CliRequest>, IpcSender<CliResponse>)> {
+    let handshake_tx = cli::ipc::IpcSender::<IpcHandshake>::connect(server_name.to_string())
+        .context("error connecting to cli")?;
+    let (request_tx, request_rx) = ipc::channel::<CliRequest>()?;
+    let (response_tx, response_rx) = ipc::channel::<CliResponse>()?;
+
+    handshake_tx
+        .send(IpcHandshake {
+            requests: request_tx,
+            responses: response_rx,
+        })
+        .context("error sending ipc handshake")?;
+
+    let (mut async_request_tx, async_request_rx) =
+        futures::channel::mpsc::channel::<CliRequest>(16);
+    thread::spawn(move || {
+        while let Ok(cli_request) = request_rx.recv() {
+            if smol::block_on(async_request_tx.send(cli_request)).is_err() {
+                break;
+            }
+        }
+        Ok::<_, anyhow::Error>(())
+    });
+
+    Ok((async_request_rx, response_tx))
+}
+
+async fn handle_cli_connection(
+    (mut requests, responses): (mpsc::Receiver<CliRequest>, IpcSender<CliResponse>),
+    app_state: Arc<AppState>,
+    mut cx: AsyncAppContext,
+) {
+    if let Some(request) = requests.next().await {
+        match request {
+            CliRequest::Open { paths, wait } => {
+                let mut caret_positions = HashMap::new();
+
+                // todo!("workspace")
+                // let paths = if paths.is_empty() {
+                // workspace::last_opened_workspace_paths()
+                //     .await
+                //     .map(|location| location.paths().to_vec())
+                //     .unwrap_or_default()
+                // } else {
+                //     paths
+                //         .into_iter()
+                //         .filter_map(|path_with_position_string| {
+                //             let path_with_position = PathLikeWithPosition::parse_str(
+                //                 &path_with_position_string,
+                //                 |path_str| {
+                //                     Ok::<_, std::convert::Infallible>(
+                //                         Path::new(path_str).to_path_buf(),
+                //                     )
+                //                 },
+                //             )
+                //             .expect("Infallible");
+                //             let path = path_with_position.path_like;
+                //             if let Some(row) = path_with_position.row {
+                //                 if path.is_file() {
+                //                     let row = row.saturating_sub(1);
+                //                     let col =
+                //                         path_with_position.column.unwrap_or(0).saturating_sub(1);
+                //                     caret_positions.insert(path.clone(), Point::new(row, col));
+                //                 }
+                //             }
+                //             Some(path)
+                //         })
+                //         .collect()
+                // };
+
+                // let mut errored = false;
+                // match cx
+                //     .update(|cx| workspace::open_paths(&paths, &app_state, None, cx))
+                //     .await
+                // {
+                //     Ok((workspace, items)) => {
+                //         let mut item_release_futures = Vec::new();
+
+                //         for (item, path) in items.into_iter().zip(&paths) {
+                //             match item {
+                //                 Some(Ok(item)) => {
+                //                     if let Some(point) = caret_positions.remove(path) {
+                //                         if let Some(active_editor) = item.downcast::<Editor>() {
+                //                             active_editor
+                //                                 .downgrade()
+                //                                 .update(&mut cx, |editor, cx| {
+                //                                     let snapshot =
+                //                                         editor.snapshot(cx).display_snapshot;
+                //                                     let point = snapshot
+                //                                         .buffer_snapshot
+                //                                         .clip_point(point, Bias::Left);
+                //                                     editor.change_selections(
+                //                                         Some(Autoscroll::center()),
+                //                                         cx,
+                //                                         |s| s.select_ranges([point..point]),
+                //                                     );
+                //                                 })
+                //                                 .log_err();
+                //                         }
+                //                     }
+
+                //                     let released = oneshot::channel();
+                //                     cx.update(|cx| {
+                //                         item.on_release(
+                //                             cx,
+                //                             Box::new(move |_| {
+                //                                 let _ = released.0.send(());
+                //                             }),
+                //                         )
+                //                         .detach();
+                //                     });
+                //                     item_release_futures.push(released.1);
+                //                 }
+                //                 Some(Err(err)) => {
+                //                     responses
+                //                         .send(CliResponse::Stderr {
+                //                             message: format!("error opening {:?}: {}", path, err),
+                //                         })
+                //                         .log_err();
+                //                     errored = true;
+                //                 }
+                //                 None => {}
+                //             }
+                //         }
+
+                //         if wait {
+                //             let background = cx.background();
+                //             let wait = async move {
+                //                 if paths.is_empty() {
+                //                     let (done_tx, done_rx) = oneshot::channel();
+                //                     if let Some(workspace) = workspace.upgrade(&cx) {
+                //                         let _subscription = cx.update(|cx| {
+                //                             cx.observe_release(&workspace, move |_, _| {
+                //                                 let _ = done_tx.send(());
+                //                             })
+                //                         });
+                //                         drop(workspace);
+                //                         let _ = done_rx.await;
+                //                     }
+                //                 } else {
+                //                     let _ =
+                //                         futures::future::try_join_all(item_release_futures).await;
+                //                 };
+                //             }
+                //             .fuse();
+                //             futures::pin_mut!(wait);
+
+                //             loop {
+                //                 // Repeatedly check if CLI is still open to avoid wasting resources
+                //                 // waiting for files or workspaces to close.
+                //                 let mut timer = background.timer(Duration::from_secs(1)).fuse();
+                //                 futures::select_biased! {
+                //                     _ = wait => break,
+                //                     _ = timer => {
+                //                         if responses.send(CliResponse::Ping).is_err() {
+                //                             break;
+                //                         }
+                //                     }
+                //                 }
+                //             }
+                //         }
+                //     }
+                //     Err(error) => {
+                //         errored = true;
+                //         responses
+                //             .send(CliResponse::Stderr {
+                //                 message: format!("error opening {:?}: {}", paths, error),
+                //             })
+                //             .log_err();
+                //     }
+                // }
+
+                // responses
+                //     .send(CliResponse::Exit {
+                //         status: i32::from(errored),
+                //     })
+                //     .log_err();
+            }
+        }
+    }
+}
+
+// pub fn background_actions() -> &'static [(&'static str, &'static dyn Action)] {
+//     &[
+//         ("Go to file", &file_finder::Toggle),
+//         ("Open command palette", &command_palette::Toggle),
+//         ("Open recent projects", &recent_projects::OpenRecent),
+//         ("Change your settings", &zed_actions::OpenSettings),
+//     ]
+// }