| 1 | //! The runner in the app: g1t's self-hosted runner, started for the |
| 2 | //! signed-in person when g1t opens and stopped when it quits, so their |
| 3 | //! computer runs their workspace's `runs-on: self-hosted` jobs with |
| 4 | //! nothing to install, register or start by hand |
| 5 | //! (docs.g1t.sh/guides/desktop/#the-runner). |
| 6 | //! |
| 7 | //! - **When.** On by default; settings turn it off ("Run jobs on this |
| 8 | //! computer while g1t is open"), and Stop in settings or the tray stops |
| 9 | //! it until Start, or until g1t starts again. It starts a few seconds |
| 10 | //! after the window, never before. |
| 11 | //! - **How.** The backend settings choose (backend.rs): Sandboxed, the |
| 12 | //! default, where nothing a job does reaches this computer; Docker; or |
| 13 | //! directly on this computer. The two that are not sandboxes are only |
| 14 | //! ever chosen by the person, and nothing falls back to them. Sandboxed |
| 15 | //! is `g1t-runner sandbox` (launcher.rs) on every OS: `up` a few seconds |
| 16 | //! after the window, `status` every few seconds while it runs, `down` |
| 17 | //! as g1t quits, and `down --drain` when another backend is chosen. |
| 18 | //! Each kind of job it runs (Linux jobs, Windows jobs) starts and stops |
| 19 | //! on its own too: settings keep which are on (`runnerCapabilities`), |
| 20 | //! every `up` names them (`--only`), and stopping one is `down --only` |
| 21 | //! it, which leaves the other running. One that should run and doesn't |
| 22 | //! while the other runs is tried again by itself, every few minutes, and |
| 23 | //! every five while the newest release has no sandbox images. |
| 24 | //! - **Registering.** The first time, and when the workspace or backend |
| 25 | //! changes, the app needs a registration token for the workspace. Only |
| 26 | //! the site can make one, for an owner who is signed in: the app asks |
| 27 | //! the site's page (`g1t-runner-wanted`), the page asks the server |
| 28 | //! (`POST /-/desktop/runner-token`) and hands the token to the app |
| 29 | //! (`runner_register` in bridge.rs), which gives it to `g1t-runner` |
| 30 | //! once: in its environment, or to the sandbox's first `up`. It is never |
| 31 | //! shown or written to the log. The registration is kept |
| 32 | //! (registration.json and the runner's own folder; the sandbox keeps its |
| 33 | //! own, and sandbox-registration.json says whose it is) and used on |
| 34 | //! every later start. |
| 35 | //! - **Up to date.** Soon after it starts and every six hours, while the |
| 36 | //! runner is idle, the app looks for a newer release and puts it in |
| 37 | //! place, and has the sandbox take the newest image (`sandbox update`): |
| 38 | //! never in the middle of a job. |
| 39 | //! - **Seen.** What it is doing, and when it is not running why and how to |
| 40 | //! fix it (diagnosis.rs), is in the tray, in settings, and on the site's |
| 41 | //! Runners page (`g1t-runner-status`), read from what its log says |
| 42 | //! (log.rs), or for the sandbox from its status. The whole log is kept |
| 43 | //! in `runner/runner.log`. |
| 44 | //! |
| 45 | //! All of it runs on a thread of its own, which owns the runner's process |
| 46 | //! and is told what happened through one channel. |
| 47 | |
| 48 | mod backend; |
| 49 | pub mod diagnosis; |
| 50 | mod launcher; |
| 51 | mod log; |
| 52 | mod native; |
| 53 | |
| 54 | use std::collections::VecDeque; |
| 55 | use std::fs::{File, OpenOptions}; |
| 56 | use std::io::{BufRead, BufReader, Read, Write}; |
| 57 | use std::path::PathBuf; |
| 58 | use std::process::{Child, Stdio}; |
| 59 | use std::sync::Mutex; |
| 60 | use std::sync::mpsc::{self, Receiver, RecvTimeoutError, Sender}; |
| 61 | use std::time::{Duration, Instant}; |
| 62 | |
| 63 | use serde::{Deserialize, Serialize}; |
| 64 | use tauri::{AppHandle, Emitter, EventTarget, Manager}; |
| 65 | use url::Url; |
| 66 | |
| 67 | pub use backend::Backend; |
| 68 | use backend::{Engine, Missing}; |
| 69 | use diagnosis::{Code, Diagnosis, Facts}; |
| 70 | use launcher::{Down, State, Status}; |
| 71 | |
| 72 | use crate::{config, frame, settings, tray}; |
| 73 | |
| 74 | /// What settings, the tray and the site listen for: the runner's status changed. |
| 75 | pub const STATUS_EVENT: &str = "g1t-runner-status"; |
| 76 | /// What the site's page listens for: the app needs a registration token for a workspace. |
| 77 | pub const WANTED_EVENT: &str = "g1t-runner-wanted"; |
| 78 | |
| 79 | /// How long after the window the runner starts. |
| 80 | const AFTER_START: Duration = Duration::from_secs(4); |
| 81 | /// How often the thread looks at the runner when nothing has happened. |
| 82 | const TICK: Duration = Duration::from_secs(5); |
| 83 | /// How long after starting the first look for an update is, then how often. |
| 84 | const FIRST_UPDATE: Duration = Duration::from_secs(90); |
| 85 | const UPDATE_EVERY: Duration = Duration::from_secs(6 * 60 * 60); |
| 86 | /// How often a backend that cannot start is looked at again. |
| 87 | const LOOK_AGAIN: Duration = Duration::from_secs(30); |
| 88 | /// How long the app waits for the site to hand over a token before asking again. |
| 89 | const ASK_AGAIN: Duration = Duration::from_secs(60); |
| 90 | /// The longest the app waits before starting a runner that stopped by itself again. |
| 91 | const MOST_BACKOFF: Duration = Duration::from_secs(10 * 60); |
| 92 | /// The runner says when a poll fails, and nothing when one works: this |
| 93 | /// long without another failure, it is back (its longest wait is 60s). |
| 94 | const BACK_ONLINE: Duration = Duration::from_secs(75); |
| 95 | /// The runner's log is started over when it is bigger than this. |
| 96 | const LOG_LIMIT: u64 = 5 * 1024 * 1024; |
| 97 | /// The last lines of the log settings show. |
| 98 | const TAIL: usize = 40; |
| 99 | |
| 100 | /// A workspace the site says the person may add runners to: those they own. |
| 101 | #[derive(Clone, Debug, PartialEq, Eq, Serialize, Deserialize)] |
| 102 | pub struct Offered { |
| 103 | pub slug: String, |
| 104 | #[serde(default)] |
| 105 | pub name: Option<String>, |
| 106 | } |
| 107 | |
| 108 | /// What the runner is doing, as the thread last said. |
| 109 | #[derive(Clone, Debug, Default, PartialEq)] |
| 110 | struct Now { |
| 111 | code: Code, |
| 112 | detail: Option<String>, |
| 113 | exit_code: Option<i32>, |
| 114 | wait_seconds: Option<u64>, |
| 115 | job: Option<String>, |
| 116 | version: Option<String>, |
| 117 | /// What the sandbox says to do, for a cause in its own words. |
| 118 | fix: Option<String>, |
| 119 | /// How the sandbox is, while jobs run sandboxed. |
| 120 | sandbox: Option<Status>, |
| 121 | /// A sandbox run is up, or on its way. |
| 122 | live: bool, |
| 123 | /// The kinds of job a launcher command is starting now. |
| 124 | starting: Vec<String>, |
| 125 | /// How far the sandbox's image has downloaded, while it does. |
| 126 | download: Option<launcher::Download>, |
| 127 | } |
| 128 | |
| 129 | /// What the site last said about the person. |
| 130 | #[derive(Clone, Debug, Default, PartialEq)] |
| 131 | struct Site { |
| 132 | /// Unknown until the site's first page loads. |
| 133 | signed_in: Option<bool>, |
| 134 | owned: Vec<Offered>, |
| 135 | current: Option<String>, |
| 136 | } |
| 137 | |
| 138 | /// What the rest of the app shares with the thread. |
| 139 | #[derive(Default)] |
| 140 | pub struct Shared { |
| 141 | now: Mutex<Now>, |
| 142 | /// The workspace a token is wanted for. |
| 143 | wanted: Mutex<Option<String>>, |
| 144 | site: Mutex<Site>, |
| 145 | /// Stopped by the person until Start, or until g1t starts again. |
| 146 | paused: Mutex<bool>, |
| 147 | tail: Mutex<VecDeque<String>>, |
| 148 | tx: Mutex<Option<Sender<Ask>>>, |
| 149 | } |
| 150 | |
| 151 | /// What settings, the tray and the site are shown. |
| 152 | #[derive(Clone, Debug, PartialEq, Serialize)] |
| 153 | #[serde(rename_all = "camelCase")] |
| 154 | pub struct View { |
| 155 | pub diagnosis: Diagnosis, |
| 156 | /// What the site says of this computer once g1t is closed on it. |
| 157 | pub closed: Diagnosis, |
| 158 | pub running: bool, |
| 159 | pub version: Option<String>, |
| 160 | pub backend: Backend, |
| 161 | pub workspace: Option<String>, |
| 162 | /// The workspaces it may run for, from the site. |
| 163 | pub workspaces: Vec<Offered>, |
| 164 | /// The setting: run jobs while g1t is open. |
| 165 | pub enabled: bool, |
| 166 | pub paused: bool, |
| 167 | /// The workspace's Runners page. |
| 168 | pub link: Option<String>, |
| 169 | /// This computer's name, which the runner has on g1t. |
| 170 | pub machine: String, |
| 171 | pub platform: String, |
| 172 | /// The last lines of the runner's log. |
| 173 | pub log: Vec<String>, |
| 174 | } |
| 175 | |
| 176 | /// What the thread is told. |
| 177 | enum Ask { |
| 178 | /// Something changed: settings, Start or Stop, Retry. |
| 179 | Look, |
| 180 | /// A kind of job was started: start what should run now, stopping nothing. |
| 181 | Soon, |
| 182 | Retry, |
| 183 | Token { workspace: String, token: String }, |
| 184 | Refused { workspace: String, allowed: bool, why: String }, |
| 185 | /// A line of the runner's output, or the launcher's; true from its standard output. |
| 186 | Line(u64, String, bool), |
| 187 | Exited(u64), |
| 188 | /// What `sandbox status` said. |
| 189 | Sandbox(u64, Result<Box<Status>, String>), |
| 190 | Quit(Sender<()>), |
| 191 | } |
| 192 | |
| 193 | /// The registration the app made, besides what the runner keeps itself. |
| 194 | #[derive(Clone, Debug, PartialEq, Serialize, Deserialize)] |
| 195 | struct Registration { |
| 196 | server: String, |
| 197 | workspace: String, |
| 198 | backend: Backend, |
| 199 | } |
| 200 | |
| 201 | /// Whose the sandbox's registration is. The sandbox keeps its own, and |
| 202 | /// keeps it while another backend runs, so choosing Sandboxed again needs |
| 203 | /// no new one; this says which workspace it is for. |
| 204 | #[derive(Clone, Debug, PartialEq, Serialize, Deserialize)] |
| 205 | struct SandboxRegistration { |
| 206 | server: String, |
| 207 | workspace: String, |
| 208 | /// False from the `up` that was given a token until it registered. |
| 209 | registered: bool, |
| 210 | } |
| 211 | |
| 212 | impl SandboxRegistration { |
| 213 | fn path(app: &AppHandle) -> PathBuf { |
| 214 | folder(app).join("sandbox-registration.json") |
| 215 | } |
| 216 | fn load(app: &AppHandle) -> Option<SandboxRegistration> { |
| 217 | std::fs::read(Self::path(app)).ok().and_then(|bytes| serde_json::from_slice(&bytes).ok()) |
| 218 | } |
| 219 | fn save(&self, app: &AppHandle) { |
| 220 | let _ = std::fs::create_dir_all(folder(app)); |
| 221 | let _ = std::fs::write(Self::path(app), serde_json::to_vec_pretty(self).unwrap_or_default()); |
| 222 | } |
| 223 | fn clear(app: &AppHandle) { |
| 224 | let _ = std::fs::remove_file(Self::path(app)); |
| 225 | } |
| 226 | } |
| 227 | |
| 228 | fn folder(app: &AppHandle) -> PathBuf { |
| 229 | app.path().app_data_dir().unwrap_or_else(|_| std::env::temp_dir().join("sh.g1t.desktop")).join("runner") |
| 230 | } |
| 231 | |
| 232 | impl Registration { |
| 233 | fn path(app: &AppHandle) -> PathBuf { |
| 234 | folder(app).join("registration.json") |
| 235 | } |
| 236 | fn load(app: &AppHandle) -> Option<Registration> { |
| 237 | std::fs::read(Self::path(app)).ok().and_then(|bytes| serde_json::from_slice(&bytes).ok()) |
| 238 | } |
| 239 | fn save(&self, app: &AppHandle) { |
| 240 | let _ = std::fs::create_dir_all(folder(app)); |
| 241 | let _ = std::fs::write(Self::path(app), serde_json::to_vec_pretty(self).unwrap_or_default()); |
| 242 | } |
| 243 | fn clear(app: &AppHandle) { |
| 244 | let _ = std::fs::remove_file(Self::path(app)); |
| 245 | } |
| 246 | } |
| 247 | |
| 248 | /// Where a native runner of a backend keeps its configuration. |
| 249 | fn native_dir(app: &AppHandle, backend: Backend) -> PathBuf { |
| 250 | folder(app).join(match backend { |
| 251 | Backend::Docker => "docker", |
| 252 | Backend::Host => "host", |
| 253 | Backend::Sandboxed => launcher::FOLDER, |
| 254 | }) |
| 255 | } |
| 256 | |
| 257 | /// The workspace the runner is for: the one settings name, else the one it |
| 258 | /// is registered with, else the one the person is in on the site, else the |
| 259 | /// first they own. |
| 260 | fn workspace(app: &AppHandle) -> Option<String> { |
| 261 | let settings = config::settings(app); |
| 262 | if let Some(chosen) = settings.runner_workspace.filter(|w| !w.is_empty()) { |
| 263 | return Some(chosen); |
| 264 | } |
| 265 | let server = config::server(app).to_string(); |
| 266 | if let Some(registration) = Registration::load(app).filter(|r| r.server == server) { |
| 267 | return Some(registration.workspace); |
| 268 | } |
| 269 | let site = app.state::<Shared>().site.lock().unwrap().clone(); |
| 270 | site.current.filter(|slug| site.owned.iter().any(|o| &o.slug == slug)).or_else(|| site.owned.first().map(|o| o.slug.clone())) |
| 271 | } |
| 272 | |
| 273 | /// The kinds of job a sandbox can have. |
| 274 | const KINDS: [&str; 3] = ["linux", "windows", "macos"]; |
| 275 | |
| 276 | fn facts(app: &AppHandle, now: &Now) -> Facts { |
| 277 | let server = config::server(app); |
| 278 | let settings = config::settings(app); |
| 279 | let backend = settings.runner_backend; |
| 280 | Facts { |
| 281 | workspace: workspace(app), |
| 282 | backend: backend.label(), |
| 283 | machine: backend::machine_name(), |
| 284 | job: now.job.clone(), |
| 285 | detail: now.detail.clone(), |
| 286 | exit_code: now.exit_code, |
| 287 | wait_seconds: now.wait_seconds, |
| 288 | server: server.host_str().unwrap_or("g1t").to_owned(), |
| 289 | site: server.as_str().trim_end_matches('/').to_owned(), |
| 290 | platform: std::env::consts::OS.into(), |
| 291 | fix: now.fix.clone(), |
| 292 | sandbox: now.sandbox.clone().filter(|_| backend == Backend::Sandboxed), |
| 293 | off: KINDS.iter().filter(|kind| !settings.runner_capabilities.on(kind)).map(|kind| (*kind).to_owned()).collect(), |
| 294 | live: now.live, |
| 295 | starting: now.starting.clone(), |
| 296 | download: now.download.clone(), |
| 297 | held: !settings.runner || *app.state::<Shared>().paused.lock().unwrap(), |
| 298 | } |
| 299 | } |
| 300 | |
| 301 | pub fn view(app: &AppHandle) -> View { |
| 302 | let shared = app.state::<Shared>(); |
| 303 | let now = shared.now.lock().unwrap().clone(); |
| 304 | let settings = config::settings(app); |
| 305 | let facts = facts(app, &now); |
| 306 | let server = config::server(app); |
| 307 | View { |
| 308 | diagnosis: diagnosis::diagnose(now.code, &facts), |
| 309 | closed: diagnosis::closed(&facts), |
| 310 | running: matches!(now.code, Code::Idle | Code::Busy | Code::Offline) || facts.sandbox.as_ref().is_some_and(Status::running), |
| 311 | version: now.version, |
| 312 | backend: settings.runner_backend, |
| 313 | link: facts.workspace.as_ref().and_then(|w| server.join(&format!("{w}/-/runners")).ok()).map(|u| u.to_string()), |
| 314 | workspace: facts.workspace, |
| 315 | workspaces: shared.site.lock().unwrap().owned.clone(), |
| 316 | enabled: settings.runner, |
| 317 | paused: *shared.paused.lock().unwrap(), |
| 318 | machine: facts.machine, |
| 319 | platform: facts.platform, |
| 320 | log: shared.tail.lock().unwrap().iter().cloned().collect(), |
| 321 | } |
| 322 | } |
| 323 | |
| 324 | /// The tray's line: `Runner: Waiting for jobs`, at most 60 characters. |
| 325 | pub fn headline(view: &View) -> String { |
| 326 | let line = format!("Runner: {}", view.diagnosis.title); |
| 327 | if line.chars().count() > 60 { line.chars().take(59).collect::<String>() + "…" } else { line } |
| 328 | } |
| 329 | |
| 330 | /// Tells everyone what the runner is doing now. |
| 331 | fn publish(app: &AppHandle) { |
| 332 | let view = view(app); |
| 333 | tray::runner_changed(app, &view); |
| 334 | let _ = app.emit_to(settings::SETTINGS, STATUS_EVENT, view.clone()); |
| 335 | let _ = app.emit_to(EventTarget::webview(frame::SITE), STATUS_EVENT, view); |
| 336 | } |
| 337 | |
| 338 | fn ask(app: &AppHandle, ask: Ask) { |
| 339 | if let Some(tx) = app.state::<Shared>().tx.lock().unwrap().as_ref() { |
| 340 | let _ = tx.send(ask); |
| 341 | } |
| 342 | } |
| 343 | |
| 344 | /// Starts the thread that keeps the runner, as the app starts. |
| 345 | pub fn install(app: &AppHandle) { |
| 346 | let (tx, rx) = mpsc::channel(); |
| 347 | *app.state::<Shared>().tx.lock().unwrap() = Some(tx.clone()); |
| 348 | let handle = app.clone(); |
| 349 | let spawned = std::thread::Builder::new().name("g1t-runner".into()).spawn(move || Keeper::new(handle, tx).keep(rx)); |
| 350 | if let Err(error) = spawned { |
| 351 | eprintln!("g1t: the runner's thread could not start: {error}"); |
| 352 | } |
| 353 | } |
| 354 | |
| 355 | /// Settings changed: the thread looks again. |
| 356 | pub fn settings_changed(app: &AppHandle) { |
| 357 | ask(app, Ask::Look); |
| 358 | publish(app); |
| 359 | } |
| 360 | |
| 361 | /// Start or Stop, from settings or the tray. |
| 362 | pub fn set_paused(app: &AppHandle, paused: bool) { |
| 363 | *app.state::<Shared>().paused.lock().unwrap() = paused; |
| 364 | // Start with the setting off turns the setting on: that is what was asked. |
| 365 | if !paused && !config::settings(app).runner { |
| 366 | let mut settings = config::settings(app); |
| 367 | settings.runner = true; |
| 368 | let _ = settings::apply(app, settings); |
| 369 | } |
| 370 | settings_changed(app); |
| 371 | } |
| 372 | |
| 373 | /// Start or Stop on one kind of job's card: kept in settings, and the |
| 374 | /// thread starts or stops that kind alone. Starting one with the runner |
| 375 | /// off or stopped starts the runner too: that is what was asked. |
| 376 | pub fn set_kind(app: &AppHandle, kind: &str, on: bool) -> Result<(), String> { |
| 377 | let mut settings = config::settings(app); |
| 378 | if !settings.runner_capabilities.set(kind, on) { |
| 379 | return Err(format!("g1t runs no {kind} jobs")); |
| 380 | } |
| 381 | if on { |
| 382 | settings.runner = true; |
| 383 | *app.state::<Shared>().paused.lock().unwrap() = false; |
| 384 | } |
| 385 | settings::apply(app, settings)?; |
| 386 | if on { |
| 387 | ask(app, Ask::Soon); |
| 388 | } |
| 389 | settings_changed(app); |
| 390 | Ok(()) |
| 391 | } |
| 392 | |
| 393 | /// The tray's Start or Stop row. |
| 394 | pub fn toggle(app: &AppHandle) { |
| 395 | let view = view(app); |
| 396 | set_paused(app, view.enabled && !view.paused); |
| 397 | } |
| 398 | |
| 399 | /// Retry and Restart: now, rather than when the wait is over. |
| 400 | pub fn retry(app: &AppHandle) { |
| 401 | *app.state::<Shared>().paused.lock().unwrap() = false; |
| 402 | ask(app, Ask::Retry); |
| 403 | } |
| 404 | |
| 405 | /// What the site says about the person, on every page: whether they are |
| 406 | /// signed in, the workspaces they own, and the one they are in. |
| 407 | pub fn offer(app: &AppHandle, signed_in: bool, owned: Vec<Offered>, current: Option<String>) { |
| 408 | let next = Site { signed_in: Some(signed_in), owned, current: current.map(|c| c.to_ascii_lowercase()) }; |
| 409 | let changed = { |
| 410 | let shared = app.state::<Shared>(); |
| 411 | let mut site = shared.site.lock().unwrap(); |
| 412 | let changed = *site != next; |
| 413 | *site = next; |
| 414 | changed |
| 415 | }; |
| 416 | if changed { |
| 417 | settings_changed(app); |
| 418 | } |
| 419 | } |
| 420 | |
| 421 | /// The site handed over a registration token, or said why it could not: |
| 422 | /// `allowed` is false when the person may not add runners to the workspace. |
| 423 | pub fn register(app: &AppHandle, workspace: String, token: Option<String>, allowed: bool, error: Option<String>) { |
| 424 | match token { |
| 425 | Some(token) if token.starts_with("g1trt_") => ask(app, Ask::Token { workspace, token }), |
| 426 | _ => ask(app, Ask::Refused { workspace, allowed, why: error.unwrap_or_else(|| "g1t didn't make a registration token.".into()) }), |
| 427 | } |
| 428 | } |
| 429 | |
| 430 | /// A diagnosis's button, or Start and Stop: from the settings window, or |
| 431 | /// from the site's card for this computer. With a kind of job (`linux`, |
| 432 | /// `windows`), Start and Stop are that kind's alone. |
| 433 | pub fn act(app: &AppHandle, action: &str, kind: Option<&str>) -> Result<(), String> { |
| 434 | use tauri_plugin_opener::OpenerExt; |
| 435 | let browse = |url: &str| app.opener().open_url(url, None::<&str>).map_err(|e| e.to_string()); |
| 436 | if let ("start" | "stop", Some(kind)) = (action, kind) { |
| 437 | return set_kind(app, kind, action == "start"); |
| 438 | } |
| 439 | match action { |
| 440 | "start" => { |
| 441 | set_paused(app, false); |
| 442 | retry(app); |
| 443 | } |
| 444 | "stop" => set_paused(app, true), |
| 445 | "retry" | "restart" => retry(app), |
| 446 | "sign_in" => crate::links::go(app, "/login"), |
| 447 | "new_workspace" => crate::links::go(app, "/workspaces/new"), |
| 448 | "view_runners" => match workspace(app) { |
| 449 | Some(workspace) => crate::links::go(app, &format!("/{workspace}/-/runners")), |
| 450 | None => crate::links::go(app, "/"), |
| 451 | }, |
| 452 | "choose_workspace" | "choose_backend" => settings::open(app), |
| 453 | "view_log" => { |
| 454 | let path = log_file(app); |
| 455 | if !path.exists() { |
| 456 | return Err("The runner hasn't written a log yet.".into()); |
| 457 | } |
| 458 | app.opener().open_path(path.to_string_lossy(), None::<&str>).map_err(|e| e.to_string())?; |
| 459 | } |
| 460 | "open_docker" => open_docker(app)?, |
| 461 | "copy_wsl_install" => copy(launcher::WSL_INSTALL)?, |
| 462 | "copy_vfkit_install" => copy(launcher::VFKIT_INSTALL)?, |
| 463 | "windows_features" => windows_features()?, |
| 464 | "get_docker" => browse("https://docs.docker.com/get-started/get-docker/")?, |
| 465 | "install_sysbox" => browse("https://github.com/nestybox/sysbox#installation")?, |
| 466 | "learn_more" => browse("https://docs.g1t.sh/guides/desktop/#how-jobs-run")?, |
| 467 | "report" => browse(config::server(app).join("support").map_err(|e| e.to_string())?.as_str())?, |
| 468 | other => return Err(format!("the runner has no action called {other}")), |
| 469 | } |
| 470 | Ok(()) |
| 471 | } |
| 472 | |
| 473 | /// Starts Docker Desktop, where it is installed in its usual place. |
| 474 | fn open_docker(app: &AppHandle) -> Result<(), String> { |
| 475 | use tauri_plugin_opener::OpenerExt; |
| 476 | if cfg!(target_os = "macos") { |
| 477 | return app.opener().open_path("/Applications/Docker.app", None::<&str>).map_err(|e| e.to_string()); |
| 478 | } |
| 479 | if cfg!(windows) { |
| 480 | let program = std::env::var_os("ProgramFiles").map(PathBuf::from).unwrap_or_else(|| PathBuf::from(r"C:\Program Files")); |
| 481 | let desktop = program.join("Docker").join("Docker").join("Docker Desktop.exe"); |
| 482 | if desktop.exists() { |
| 483 | return app.opener().open_path(desktop.to_string_lossy(), None::<&str>).map_err(|e| e.to_string()); |
| 484 | } |
| 485 | return Err("Docker Desktop isn't installed in its usual place. Get Docker to install it.".into()); |
| 486 | } |
| 487 | Err("Start Docker with your system's service manager, such as `sudo systemctl start docker`.".into()) |
| 488 | } |
| 489 | |
| 490 | /// Puts a command on the clipboard, for the person to paste where it runs. |
| 491 | fn copy(text: &str) -> Result<(), String> { |
| 492 | let tools: &[(&str, &[&str])] = if cfg!(windows) { |
| 493 | &[("clip", &[])] |
| 494 | } else if cfg!(target_os = "macos") { |
| 495 | &[("pbcopy", &[])] |
| 496 | } else { |
| 497 | &[("wl-copy", &[]), ("xclip", &["-selection", "clipboard"]), ("xsel", &["--clipboard", "--input"])] |
| 498 | }; |
| 499 | for (program, args) in tools { |
| 500 | let Ok(mut child) = backend::quiet(program).args(*args).stdin(Stdio::piped()).stdout(Stdio::null()).stderr(Stdio::null()).spawn() else { continue }; |
| 501 | if let Some(mut input) = child.stdin.take() { |
| 502 | let _ = input.write_all(text.as_bytes()); |
| 503 | } |
| 504 | if child.wait().is_ok_and(|status| status.success()) { |
| 505 | return Ok(()); |
| 506 | } |
| 507 | } |
| 508 | Err(format!("It couldn't be copied. The command is: {text}")) |
| 509 | } |
| 510 | |
| 511 | /// Windows' "Turn Windows features on or off", where Windows Sandbox and |
| 512 | /// Virtual Machine Platform are. |
| 513 | fn windows_features() -> Result<(), String> { |
| 514 | if !cfg!(windows) { |
| 515 | return Err("Windows features are only on Windows.".into()); |
| 516 | } |
| 517 | backend::quiet("optionalfeatures.exe").spawn().map(|_| ()).map_err(|e| format!("Windows features couldn't be opened: {e}")) |
| 518 | } |
| 519 | |
| 520 | /// The workspace a token is wanted for now, if one is: the site asks as it loads. |
| 521 | pub fn wanted(app: &AppHandle) -> Option<String> { |
| 522 | app.state::<Shared>().wanted.lock().unwrap().clone() |
| 523 | } |
| 524 | |
| 525 | /// The runner's log, for the settings window to open. |
| 526 | pub fn log_file(app: &AppHandle) -> PathBuf { |
| 527 | folder(app).join("runner.log") |
| 528 | } |
| 529 | |
| 530 | /// Stops the runner as g1t quits or restarts, and waits for it. |
| 531 | pub fn shutdown(app: &AppHandle) { |
| 532 | let tx = app.state::<Shared>().tx.lock().unwrap().take(); |
| 533 | if let Some(tx) = tx { |
| 534 | let (done, wait) = mpsc::channel(); |
| 535 | if tx.send(Ask::Quit(done)).is_ok() { |
| 536 | let _ = wait.recv_timeout(Duration::from_secs(30)); |
| 537 | } |
| 538 | } |
| 539 | } |
| 540 | |
| 541 | /// How the runner is started this time. |
| 542 | enum Process { |
| 543 | /// `g1t-runner`, a child of the app, whose output is the runner's log. |
| 544 | Child(Child), |
| 545 | /// The sandbox, which runs on its own once `up` is done; the launcher |
| 546 | /// command the app is waiting for, while there is one. |
| 547 | Sandbox(Option<(Step, Child)>), |
| 548 | } |
| 549 | |
| 550 | /// A launcher command that takes a while. |
| 551 | #[derive(Clone, Debug, PartialEq, Eq)] |
| 552 | enum Step { |
| 553 | Up, |
| 554 | Update, |
| 555 | /// `up --only <kind>`: one kind of job, started while the rest run. |
| 556 | Start(String), |
| 557 | /// `down --only <kind>`: one kind of job, stopped, the rest running on. |
| 558 | Stop(String), |
| 559 | } |
| 560 | |
| 561 | impl Step { |
| 562 | fn name(&self) -> &'static str { |
| 563 | match self { |
| 564 | Step::Up | Step::Start(_) => "up", |
| 565 | Step::Update => "update", |
| 566 | Step::Stop(_) => "down", |
| 567 | } |
| 568 | } |
| 569 | } |
| 570 | |
| 571 | struct Run { |
| 572 | generation: u64, |
| 573 | engine: Engine, |
| 574 | backend: Backend, |
| 575 | workspace: String, |
| 576 | process: Process, |
| 577 | /// Registered and polling. |
| 578 | listening: bool, |
| 579 | busy: bool, |
| 580 | /// When a poll last failed to reach g1t. |
| 581 | offline_at: Option<Instant>, |
| 582 | /// Started with a registration token, which a container keeps in its configuration until replaced. |
| 583 | with_token: bool, |
| 584 | forgotten: bool, |
| 585 | token_refused: bool, |
| 586 | error: Option<String>, |
| 587 | /// The status a launcher command is printing, line by line. |
| 588 | json: Option<Vec<String>>, |
| 589 | /// Asking the sandbox how it is, and when it was last asked. |
| 590 | polling: bool, |
| 591 | polled_at: Option<Instant>, |
| 592 | /// A poll asked before a launcher command ended, whose answer is old. |
| 593 | stale: bool, |
| 594 | } |
| 595 | |
| 596 | impl Run { |
| 597 | fn new(generation: u64, engine: Engine, backend: Backend, workspace: String, process: Process, with_token: bool) -> Run { |
| 598 | Run { |
| 599 | generation, |
| 600 | engine, |
| 601 | backend, |
| 602 | workspace, |
| 603 | process, |
| 604 | listening: false, |
| 605 | busy: false, |
| 606 | offline_at: None, |
| 607 | with_token, |
| 608 | forgotten: false, |
| 609 | token_refused: false, |
| 610 | error: None, |
| 611 | json: None, |
| 612 | polling: false, |
| 613 | polled_at: None, |
| 614 | stale: false, |
| 615 | } |
| 616 | } |
| 617 | |
| 618 | fn step(&self) -> Option<Step> { |
| 619 | match &self.process { |
| 620 | Process::Sandbox(Some((step, _))) => Some(step.clone()), |
| 621 | _ => None, |
| 622 | } |
| 623 | } |
| 624 | } |
| 625 | |
| 626 | struct Keeper { |
| 627 | app: AppHandle, |
| 628 | tx: Sender<Ask>, |
| 629 | run: Option<Run>, |
| 630 | generation: u64, |
| 631 | token: Option<(String, String)>, |
| 632 | not_before: Instant, |
| 633 | failures: u32, |
| 634 | next_update: Instant, |
| 635 | log: Option<File>, |
| 636 | /// The runner was updated: the sandbox takes its image before it starts again. |
| 637 | image_pending: bool, |
| 638 | /// Why the last update failed, said until the next one works. |
| 639 | update_failed: Option<String>, |
| 640 | /// A kind of job that should run and doesn't, while another runs: |
| 641 | /// when it is tried again, and how many times it has been. |
| 642 | retry: Vec<(String, Instant, u32)>, |
| 643 | } |
| 644 | |
| 645 | /// What a set of the state carries besides its code. |
| 646 | #[derive(Default)] |
| 647 | struct Extra { |
| 648 | detail: Option<String>, |
| 649 | exit_code: Option<i32>, |
| 650 | wait_seconds: Option<u64>, |
| 651 | fix: Option<String>, |
| 652 | } |
| 653 | |
| 654 | fn detail(text: impl Into<String>) -> Extra { |
| 655 | Extra { detail: Some(text.into()), ..Extra::default() } |
| 656 | } |
| 657 | |
| 658 | impl Keeper { |
| 659 | fn new(app: AppHandle, tx: Sender<Ask>) -> Keeper { |
| 660 | let now = Instant::now(); |
| 661 | Keeper { |
| 662 | app, |
| 663 | tx, |
| 664 | run: None, |
| 665 | generation: 0, |
| 666 | token: None, |
| 667 | not_before: now + AFTER_START, |
| 668 | failures: 0, |
| 669 | next_update: now + FIRST_UPDATE, |
| 670 | log: None, |
| 671 | image_pending: false, |
| 672 | update_failed: None, |
| 673 | retry: Vec::new(), |
| 674 | } |
| 675 | } |
| 676 | |
| 677 | fn keep(mut self, rx: Receiver<Ask>) { |
| 678 | self.reap(); |
| 679 | self.set(Code::Starting, detail("Starting after g1t's window.")); |
| 680 | loop { |
| 681 | match rx.recv_timeout(TICK) { |
| 682 | Ok(Ask::Quit(done)) => { |
| 683 | self.halt(); |
| 684 | let _ = done.send(()); |
| 685 | return; |
| 686 | } |
| 687 | Ok(ask) => self.handle(ask), |
| 688 | Err(RecvTimeoutError::Timeout) => {} |
| 689 | Err(RecvTimeoutError::Disconnected) => { |
| 690 | self.halt(); |
| 691 | return; |
| 692 | } |
| 693 | } |
| 694 | self.look(); |
| 695 | } |
| 696 | } |
| 697 | |
| 698 | fn set(&mut self, code: Code, extra: Extra) { |
| 699 | let changed = { |
| 700 | let shared = self.app.state::<Shared>(); |
| 701 | let mut now = shared.now.lock().unwrap(); |
| 702 | let job = if code == Code::Busy { now.job.clone() } else { None }; |
| 703 | let next = Now { |
| 704 | code, |
| 705 | detail: extra.detail, |
| 706 | exit_code: extra.exit_code, |
| 707 | wait_seconds: extra.wait_seconds, |
| 708 | job, |
| 709 | fix: extra.fix, |
| 710 | live: self.run.as_ref().is_some_and(|run| run.engine == Engine::Launcher), |
| 711 | ..now.clone() |
| 712 | }; |
| 713 | let changed = *now != next; |
| 714 | *now = next; |
| 715 | changed |
| 716 | }; |
| 717 | if changed { |
| 718 | publish(&self.app); |
| 719 | } |
| 720 | } |
| 721 | |
| 722 | fn code(&self) -> Code { |
| 723 | self.app.state::<Shared>().now.lock().unwrap().code |
| 724 | } |
| 725 | |
| 726 | fn note(&mut self, job: Option<String>, version: Option<String>) { |
| 727 | let shared = self.app.state::<Shared>(); |
| 728 | let mut now = shared.now.lock().unwrap(); |
| 729 | if job.is_some() { |
| 730 | now.job = job; |
| 731 | } |
| 732 | if version.is_some() { |
| 733 | now.version = version; |
| 734 | } |
| 735 | } |
| 736 | |
| 737 | /// A line of the runner's log, into the log file and the tail settings show. |
| 738 | fn write_log(&mut self, line: &str) { |
| 739 | { |
| 740 | let shared = self.app.state::<Shared>(); |
| 741 | let mut tail = shared.tail.lock().unwrap(); |
| 742 | if tail.len() == TAIL { |
| 743 | tail.pop_front(); |
| 744 | } |
| 745 | tail.push_back(line.to_owned()); |
| 746 | } |
| 747 | let path = log_file(&self.app); |
| 748 | if self.log.is_none() { |
| 749 | let _ = std::fs::create_dir_all(folder(&self.app)); |
| 750 | if std::fs::metadata(&path).is_ok_and(|m| m.len() > LOG_LIMIT) { |
| 751 | let _ = std::fs::rename(&path, path.with_extension("log.old")); |
| 752 | } |
| 753 | self.log = OpenOptions::new().create(true).append(true).open(&path).ok(); |
| 754 | } |
| 755 | if let Some(file) = self.log.as_mut() { |
| 756 | let _ = writeln!(file, "{line}"); |
| 757 | } |
| 758 | } |
| 759 | |
| 760 | fn handle(&mut self, ask: Ask) { |
| 761 | match ask { |
| 762 | Ask::Look | Ask::Quit(_) => {} |
| 763 | Ask::Soon => { |
| 764 | self.not_before = Instant::now(); |
| 765 | for (_, at, _) in &mut self.retry { |
| 766 | *at = Instant::now(); |
| 767 | } |
| 768 | } |
| 769 | Ask::Retry => { |
| 770 | self.not_before = Instant::now(); |
| 771 | self.failures = 0; |
| 772 | // Each kind of job that waits to be tried again is tried now. |
| 773 | for (_, at, _) in &mut self.retry { |
| 774 | *at = Instant::now(); |
| 775 | } |
| 776 | match self.code() { |
| 777 | // The runner is fine: only the update is tried again. |
| 778 | Code::UpdateFailed => { |
| 779 | self.next_update = Instant::now(); |
| 780 | self.update_failed = None; |
| 781 | } |
| 782 | Code::Offline => self.halt(), |
| 783 | _ if self.run.as_ref().is_some_and(|run| !run.listening) => self.halt(), |
| 784 | _ => {} |
| 785 | } |
| 786 | } |
| 787 | Ask::Token { workspace, token } => { |
| 788 | let shared = self.app.state::<Shared>(); |
| 789 | let mut wanted = shared.wanted.lock().unwrap(); |
| 790 | if wanted.as_deref() == Some(workspace.as_str()) { |
| 791 | *wanted = None; |
| 792 | self.token = Some((workspace, token)); |
| 793 | self.not_before = Instant::now(); |
| 794 | } |
| 795 | } |
| 796 | Ask::Refused { workspace, allowed, why } => { |
| 797 | let matched = { |
| 798 | let shared = self.app.state::<Shared>(); |
| 799 | let mut wanted = shared.wanted.lock().unwrap(); |
| 800 | let matched = wanted.as_deref() == Some(workspace.as_str()); |
| 801 | if matched { |
| 802 | *wanted = None; |
| 803 | } |
| 804 | matched |
| 805 | }; |
| 806 | if matched { |
| 807 | self.not_before = Instant::now() + MOST_BACKOFF; |
| 808 | self.set(if allowed { Code::RegisterFailed } else { Code::NotAllowed }, detail(why)); |
| 809 | } |
| 810 | } |
| 811 | Ask::Line(generation, line, out) => self.line(generation, &line, out), |
| 812 | Ask::Exited(generation) => self.exited(generation), |
| 813 | Ask::Sandbox(generation, status) => self.polled(generation, status), |
| 814 | } |
| 815 | } |
| 816 | |
| 817 | fn line(&mut self, generation: u64, line: &str, out: bool) { |
| 818 | let Some(run) = self.run.as_mut().filter(|run| run.generation == generation) else { return }; |
| 819 | if run.engine == Engine::Launcher { |
| 820 | // The launcher's log, then its status, which is read when it ends. |
| 821 | if out && (run.json.is_some() || launcher::starts_status(line)) { |
| 822 | run.json.get_or_insert_with(Vec::new).push(line.to_owned()); |
| 823 | } else { |
| 824 | if let Some(download) = launcher::download(line) { |
| 825 | let changed = { |
| 826 | let shared = self.app.state::<Shared>(); |
| 827 | let mut now = shared.now.lock().unwrap(); |
| 828 | let changed = now.download.as_ref() != Some(&download); |
| 829 | now.download = Some(download); |
| 830 | changed |
| 831 | }; |
| 832 | if changed { |
| 833 | publish(&self.app); |
| 834 | } |
| 835 | } |
| 836 | self.write_log(line); |
| 837 | } |
| 838 | return; |
| 839 | } |
| 840 | let mut became = None; |
| 841 | let mut job = None; |
| 842 | let mut version = None; |
| 843 | match log::read(line) { |
| 844 | log::Event::Listening { version: v } => { |
| 845 | run.listening = true; |
| 846 | version = Some(v); |
| 847 | became = Some(Code::Idle); |
| 848 | } |
| 849 | log::Event::Took { name, repo } => { |
| 850 | run.busy = true; |
| 851 | run.offline_at = None; |
| 852 | job = Some(format!("{name} ({repo})")); |
| 853 | became = Some(Code::Busy); |
| 854 | } |
| 855 | log::Event::Ended => { |
| 856 | run.busy = false; |
| 857 | became = Some(Code::Idle); |
| 858 | } |
| 859 | log::Event::Offline => { |
| 860 | run.offline_at = Some(Instant::now()); |
| 861 | if !run.busy { |
| 862 | became = Some(Code::Offline); |
| 863 | } |
| 864 | } |
| 865 | log::Event::Forgotten => run.forgotten = true, |
| 866 | log::Event::TokenRefused => run.token_refused = true, |
| 867 | log::Event::Failed(error) => run.error = Some(error), |
| 868 | log::Event::Other => {} |
| 869 | } |
| 870 | let registered = version.is_some().then(|| Registration { |
| 871 | server: config::server(&self.app).to_string(), |
| 872 | workspace: run.workspace.clone(), |
| 873 | backend: run.backend, |
| 874 | }); |
| 875 | self.write_log(line); |
| 876 | if let Some(registration) = registered { |
| 877 | registration.save(&self.app); |
| 878 | self.failures = 0; |
| 879 | } |
| 880 | self.note(job, version); |
| 881 | if let Some(code) = became { |
| 882 | self.set(code, Extra::default()); |
| 883 | } |
| 884 | } |
| 885 | |
| 886 | fn exited(&mut self, generation: u64) { |
| 887 | if self.run.as_ref().is_none_or(|run| run.generation != generation) { |
| 888 | return; |
| 889 | } |
| 890 | if self.run.as_ref().is_some_and(|run| run.engine == Engine::Launcher) { |
| 891 | return self.launched(generation); |
| 892 | } |
| 893 | let mut run = self.run.take().expect("checked above"); |
| 894 | let exit_code = match &mut run.process { |
| 895 | Process::Child(child) => child.wait().ok().and_then(|status| status.code()), |
| 896 | Process::Sandbox(_) => None, |
| 897 | }; |
| 898 | self.stop(&mut run, Down::Now); |
| 899 | if run.forgotten || run.token_refused { |
| 900 | // The registration is no more, or was never made: the next start asks for a token. |
| 901 | self.forget(); |
| 902 | self.not_before = Instant::now(); |
| 903 | return; |
| 904 | } |
| 905 | self.failures += 1; |
| 906 | let wait = Duration::from_secs(15 * 2u64.pow(self.failures.min(6))).min(MOST_BACKOFF); |
| 907 | self.not_before = Instant::now() + wait; |
| 908 | let offline = run.error.as_deref().is_some_and(|e| e.contains("could not reach g1t")); |
| 909 | if offline { |
| 910 | self.set(Code::Offline, Extra::default()); |
| 911 | } else if !run.listening && Registration::load(&self.app).is_none() { |
| 912 | self.set(Code::RegisterFailed, Extra { detail: run.error, ..Extra::default() }); |
| 913 | } else { |
| 914 | self.set(Code::Crashed, Extra { detail: run.error, exit_code, wait_seconds: Some(wait.as_secs()), ..Extra::default() }); |
| 915 | } |
| 916 | } |
| 917 | |
| 918 | /// Stops a run's process, the way it was started: the sandbox `how` says. |
| 919 | fn stop(&mut self, run: &mut Run, how: Down) { |
| 920 | match (&mut run.process, run.engine) { |
| 921 | (Process::Sandbox(step), _) => { |
| 922 | // A launcher command still going is ended first, then the sandbox stopped. |
| 923 | if let Some((_, child)) = step.as_mut() { |
| 924 | native::stop(child); |
| 925 | } |
| 926 | let binary = native::binary(&folder(&self.app)); |
| 927 | // How it is once stopped, so each kind of job's card says so. |
| 928 | let stopped = match launcher::down(&binary, &native_dir(&self.app, Backend::Sandboxed), how) { |
| 929 | Ok(status) => Some(status), |
| 930 | Err(why) => { |
| 931 | self.write_log(&format!("g1t: the sandbox didn't stop cleanly: {why}")); |
| 932 | None |
| 933 | } |
| 934 | }; |
| 935 | let shared = self.app.state::<Shared>(); |
| 936 | let mut now = shared.now.lock().unwrap(); |
| 937 | now.sandbox = stopped.filter(|_| how != Down::Delete); |
| 938 | now.starting.clear(); |
| 939 | now.download = None; |
| 940 | } |
| 941 | (Process::Child(child), Engine::Launcher) => native::stop(child), |
| 942 | (Process::Child(child), Engine::Native { docker }) => { |
| 943 | native::stop(child); |
| 944 | // A job's container outlives the runner killed under it: removed now, not at its next start. |
| 945 | if docker { |
| 946 | native::sweep(&native_dir(&self.app, run.backend)); |
| 947 | } |
| 948 | } |
| 949 | } |
| 950 | let _ = std::fs::remove_file(folder(&self.app).join("pid")); |
| 951 | } |
| 952 | |
| 953 | /// Stops whatever runs now. |
| 954 | fn halt(&mut self) { |
| 955 | self.halt_as(Down::Now); |
| 956 | } |
| 957 | |
| 958 | /// Stops whatever runs: the sandbox now, after its job, or for good. |
| 959 | fn halt_as(&mut self, how: Down) { |
| 960 | self.generation += 1; |
| 961 | if let Some(mut run) = self.run.take() { |
| 962 | self.stop(&mut run, how); |
| 963 | } |
| 964 | } |
| 965 | |
| 966 | /// A runner an earlier g1t started and did not stop: it ended without quitting. |
| 967 | fn reap(&self) { |
| 968 | if let Some(pid) = std::fs::read_to_string(folder(&self.app).join("pid")).ok().and_then(|text| text.trim().parse().ok()) { |
| 969 | native::reap(pid); |
| 970 | let _ = std::fs::remove_file(folder(&self.app).join("pid")); |
| 971 | } |
| 972 | } |
| 973 | |
| 974 | /// Unregisters the runner the app registered, whatever backend it was. |
| 975 | fn forget(&mut self) { |
| 976 | let app = self.app.clone(); |
| 977 | let Some(registration) = Registration::load(&app) else { return }; |
| 978 | let binary = native::binary(&folder(&app)); |
| 979 | match registration.backend { |
| 980 | // The sandbox keeps its registration for when it is chosen |
| 981 | // again (sandbox-registration.json says whose): it only stops, |
| 982 | // after its job. |
| 983 | Backend::Sandboxed => { |
| 984 | let _ = launcher::down(&binary, &native_dir(&app, Backend::Sandboxed), Down::Drain); |
| 985 | } |
| 986 | backend => native::forget(&binary, &native_dir(&app, backend)), |
| 987 | } |
| 988 | Registration::clear(&app); |
| 989 | } |
| 990 | |
| 991 | /// Removes the sandbox and its registration: it was for another |
| 992 | /// workspace, or g1t no longer knows its runners. |
| 993 | fn forget_sandbox(&mut self) { |
| 994 | let binary = native::binary(&folder(&self.app)); |
| 995 | if let Err(why) = launcher::down(&binary, &native_dir(&self.app, Backend::Sandboxed), Down::Delete) { |
| 996 | self.write_log(&format!("g1t: the sandbox couldn't be removed: {why}")); |
| 997 | } |
| 998 | SandboxRegistration::clear(&self.app); |
| 999 | if Registration::load(&self.app).is_some_and(|r| r.backend == Backend::Sandboxed) { |
| 1000 | Registration::clear(&self.app); |
| 1001 | } |
| 1002 | } |
| 1003 | |
| 1004 | /// Whether what a native runner keeps of a registration is still here. |
| 1005 | fn kept(&self, backend: Backend) -> bool { |
| 1006 | native_dir(&self.app, backend).join("config.json").exists() |
| 1007 | } |
| 1008 | |
| 1009 | /// Asks the site for a registration token for `workspace`. |
| 1010 | fn want(&mut self, workspace: &str) { |
| 1011 | *self.app.state::<Shared>().wanted.lock().unwrap() = Some(workspace.to_owned()); |
| 1012 | let _ = self.app.emit_to(EventTarget::webview(frame::SITE), WANTED_EVENT, workspace.to_owned()); |
| 1013 | self.not_before = Instant::now() + ASK_AGAIN; |
| 1014 | let signed_out = self.app.state::<Shared>().site.lock().unwrap().signed_in == Some(false); |
| 1015 | self.set(if signed_out { Code::SignedOut } else { Code::Registering }, Extra::default()); |
| 1016 | } |
| 1017 | |
| 1018 | /// The thread's look round: what should run, and whether it does. |
| 1019 | fn look(&mut self) { |
| 1020 | let settings = config::settings(&self.app); |
| 1021 | let paused = *self.app.state::<Shared>().paused.lock().unwrap(); |
| 1022 | if !settings.runner || paused { |
| 1023 | if self.run.is_some() { |
| 1024 | self.halt(); |
| 1025 | } |
| 1026 | *self.app.state::<Shared>().wanted.lock().unwrap() = None; |
| 1027 | self.set(if paused { Code::Stopped } else { Code::Off }, Extra::default()); |
| 1028 | return; |
| 1029 | } |
| 1030 | let workspace = workspace(&self.app); |
| 1031 | if let Some(run) = &self.run { |
| 1032 | let moved = run.backend != settings.runner_backend || Some(&run.workspace) != workspace.as_ref(); |
| 1033 | let back = run.offline_at.is_some_and(|at| at.elapsed() >= BACK_ONLINE); |
| 1034 | let (busy, listening, stepping) = (run.busy, run.listening, run.step().is_some()); |
| 1035 | if back { |
| 1036 | if let Some(run) = self.run.as_mut() { |
| 1037 | run.offline_at = None; |
| 1038 | } |
| 1039 | self.set(Code::Idle, Extra::default()); |
| 1040 | } |
| 1041 | // A change of backend or workspace waits for the job to end, as an update does. |
| 1042 | if moved && !busy && !stepping { |
| 1043 | self.halt_as(Down::Drain); |
| 1044 | self.not_before = Instant::now(); |
| 1045 | } else if !busy && listening && !stepping && Instant::now() >= self.next_update { |
| 1046 | self.update(); |
| 1047 | } else if !moved && !stepping { |
| 1048 | self.kinds(workspace.as_deref()); |
| 1049 | } |
| 1050 | self.poll(); |
| 1051 | return; |
| 1052 | } |
| 1053 | if Instant::now() < self.not_before { |
| 1054 | return; |
| 1055 | } |
| 1056 | self.start(settings.runner_backend, workspace); |
| 1057 | } |
| 1058 | |
| 1059 | fn start(&mut self, backend: Backend, workspace: Option<String>) { |
| 1060 | let app = self.app.clone(); |
| 1061 | let engine = match backend::engine(backend) { |
| 1062 | Ok(engine) => engine, |
| 1063 | Err(missing) => { |
| 1064 | self.not_before = Instant::now() + LOOK_AGAIN; |
| 1065 | let code = match missing { |
| 1066 | Missing::Docker => Code::NoDocker, |
| 1067 | }; |
| 1068 | self.set(code, Extra::default()); |
| 1069 | return; |
| 1070 | } |
| 1071 | }; |
| 1072 | let Some(workspace) = workspace else { |
| 1073 | self.not_before = Instant::now() + LOOK_AGAIN; |
| 1074 | let code = match app.state::<Shared>().site.lock().unwrap().signed_in { |
| 1075 | Some(false) => Code::SignedOut, |
| 1076 | Some(true) => Code::NoWorkspace, |
| 1077 | None => Code::Starting, |
| 1078 | }; |
| 1079 | self.set(code, detail("Waiting for g1t to open.")); |
| 1080 | return; |
| 1081 | }; |
| 1082 | if engine == Engine::Launcher { |
| 1083 | return self.start_sandbox(workspace); |
| 1084 | } |
| 1085 | let server = config::server(&app); |
| 1086 | let registration = Registration::load(&app); |
| 1087 | let ours = registration.as_ref().is_some_and(|r| r.server == server.as_str() && r.workspace == workspace && r.backend == backend) && self.kept(backend); |
| 1088 | let mut token = None; |
| 1089 | if !ours { |
| 1090 | if registration.is_some() { |
| 1091 | self.set(Code::Starting, detail("Removing this computer's earlier registration.")); |
| 1092 | self.forget(); |
| 1093 | } |
| 1094 | match self.token.take() { |
| 1095 | Some((for_workspace, given)) if for_workspace == workspace => token = Some(given), |
| 1096 | _ => return self.want(&workspace), |
| 1097 | } |
| 1098 | } |
| 1099 | self.hold_workspace(&workspace); |
| 1100 | self.set(Code::Starting, Extra::default()); |
| 1101 | let envs = environment(&server, backend, token.as_deref()); |
| 1102 | let generation = self.generation + 1; |
| 1103 | self.generation = generation; |
| 1104 | let started = self.ensure_binary(&server).and_then(|binary| { |
| 1105 | let child = native::spawn(&binary, &native_dir(&app, backend), &envs).map_err(|e| format!("g1t-runner could not start: {e}"))?; |
| 1106 | let _ = std::fs::write(folder(&app).join("pid"), child.id().to_string()); |
| 1107 | Ok(child) |
| 1108 | }); |
| 1109 | match started { |
| 1110 | Ok(mut child) => { |
| 1111 | self.follow(generation, &mut child); |
| 1112 | self.run = Some(Run::new(generation, engine, backend, workspace, Process::Child(child), token.is_some())); |
| 1113 | self.set(Code::Starting, Extra::default()); |
| 1114 | } |
| 1115 | Err(why) => self.not_started(workspace, token, why), |
| 1116 | } |
| 1117 | } |
| 1118 | |
| 1119 | /// The runner couldn't be started: the token is kept for the next try, |
| 1120 | /// while it lasts, and it is tried again in a while. |
| 1121 | fn not_started(&mut self, workspace: String, token: Option<String>, why: String) { |
| 1122 | if let Some(given) = token { |
| 1123 | self.token = Some((workspace, given)); |
| 1124 | } |
| 1125 | self.failures += 1; |
| 1126 | self.not_before = Instant::now() + LOOK_AGAIN; |
| 1127 | let offline = why.contains("error sending request") || why.contains("dns") || why.contains("connect"); |
| 1128 | self.write_log(&format!("g1t: the runner could not start: {why}")); |
| 1129 | if offline { |
| 1130 | self.set(Code::Offline, Extra::default()); |
| 1131 | } else { |
| 1132 | self.set(Code::Crashed, Extra { detail: Some(why), wait_seconds: Some(LOOK_AGAIN.as_secs()), ..Extra::default() }); |
| 1133 | } |
| 1134 | } |
| 1135 | |
| 1136 | /// The setting names the workspace from now on, so browsing another one never moves the runner. |
| 1137 | fn hold_workspace(&self, workspace: &str) { |
| 1138 | if config::settings(&self.app).runner_workspace.as_deref() != Some(workspace) { |
| 1139 | let mut settings = config::settings(&self.app); |
| 1140 | settings.runner_workspace = Some(workspace.to_owned()); |
| 1141 | let _ = config::set_settings(&self.app, settings); |
| 1142 | } |
| 1143 | } |
| 1144 | |
| 1145 | /// Reads the child's output, a line at a time, onto the thread's channel. |
| 1146 | fn follow(&self, generation: u64, child: &mut Child) { |
| 1147 | fn pipe(tx: Sender<Ask>, generation: u64, from: impl Read + Send + 'static, last: bool) { |
| 1148 | std::thread::spawn(move || { |
| 1149 | for line in BufReader::new(from).lines().map_while(Result::ok) { |
| 1150 | if tx.send(Ask::Line(generation, line, last)).is_err() { |
| 1151 | return; |
| 1152 | } |
| 1153 | } |
| 1154 | if last { |
| 1155 | let _ = tx.send(Ask::Exited(generation)); |
| 1156 | } |
| 1157 | }); |
| 1158 | } |
| 1159 | if let Some(err) = child.stderr.take() { |
| 1160 | pipe(self.tx.clone(), generation, err, false); |
| 1161 | } |
| 1162 | if let Some(out) = child.stdout.take() { |
| 1163 | pipe(self.tx.clone(), generation, out, true); |
| 1164 | } |
| 1165 | } |
| 1166 | |
| 1167 | /// `g1t-runner` installed, from the newest release when it is not. |
| 1168 | fn ensure_binary(&mut self, server: &Url) -> Result<PathBuf, String> { |
| 1169 | let folder = folder(&self.app); |
| 1170 | let binary = native::binary(&folder); |
| 1171 | if native::installed(&folder).is_some() { |
| 1172 | return Ok(binary); |
| 1173 | } |
| 1174 | self.set(Code::Updating, detail("Downloading g1t-runner.")); |
| 1175 | let manifest = native::latest(server)?; |
| 1176 | let bytes = native::download(server, &manifest)?; |
| 1177 | native::put(&folder, &bytes, &manifest.version)?; |
| 1178 | self.note(None, Some(manifest.version)); |
| 1179 | Ok(binary) |
| 1180 | } |
| 1181 | |
| 1182 | /// A newer release or image, put in place while the runner is idle. |
| 1183 | /// The new one is downloaded and checked before the runner stops, so |
| 1184 | /// one that fails leaves it running as it was. |
| 1185 | fn update(&mut self) { |
| 1186 | self.next_update = Instant::now() + UPDATE_EVERY; |
| 1187 | if !config::settings(&self.app).auto_update { |
| 1188 | return; |
| 1189 | } |
| 1190 | let Some(engine) = self.run.as_ref().map(|run| run.engine) else { return }; |
| 1191 | let server = config::server(&self.app); |
| 1192 | let folder = folder(&self.app); |
| 1193 | let release = match self.newer_release(&server) { |
| 1194 | Ok(release) => release, |
| 1195 | Err(why) => { |
| 1196 | let why = format!("g1t-runner couldn't be updated: {why}"); |
| 1197 | self.write_log(&format!("g1t: {why}")); |
| 1198 | self.update_failed = Some(why.clone()); |
| 1199 | return self.set(Code::UpdateFailed, detail(why)); |
| 1200 | } |
| 1201 | }; |
| 1202 | let Some((version, bytes)) = release else { |
| 1203 | // The program is the newest; the sandbox's image may not be |
| 1204 | // (`update` does nothing when it is). |
| 1205 | if engine == Engine::Launcher { |
| 1206 | self.sandbox_step(Step::Update); |
| 1207 | } |
| 1208 | return; |
| 1209 | }; |
| 1210 | self.set(Code::Updating, detail(format!("Updating g1t-runner to {version}."))); |
| 1211 | // The sandbox's runner for Windows jobs is this program too: it |
| 1212 | // stops, after its job, before the program is replaced. |
| 1213 | self.halt_as(Down::Drain); |
| 1214 | match native::put(&folder, &bytes, &version) { |
| 1215 | Ok(()) => { |
| 1216 | self.note(None, Some(version)); |
| 1217 | self.update_failed = None; |
| 1218 | // The sandbox's image comes with each release. |
| 1219 | self.image_pending = engine == Engine::Launcher; |
| 1220 | } |
| 1221 | Err(why) => self.write_log(&format!("g1t: g1t-runner {version} couldn't be put in place: {why}")), |
| 1222 | } |
| 1223 | self.not_before = Instant::now(); |
| 1224 | } |
| 1225 | |
| 1226 | /// A release newer than the `g1t-runner` here, downloaded and checked |
| 1227 | /// against its SHA-256: its version and program. None when this one is |
| 1228 | /// the newest, or the releases can't be asked now. |
| 1229 | fn newer_release(&self, server: &Url) -> Result<Option<(String, Vec<u8>)>, String> { |
| 1230 | let Ok(manifest) = native::latest(server) else { return Ok(None) }; |
| 1231 | if !native::installed(&folder(&self.app)).is_none_or(|have| native::newer(&manifest.version, &have)) { |
| 1232 | return Ok(None); |
| 1233 | } |
| 1234 | let bytes = native::download(server, &manifest).map_err(|why| format!("{} didn't download: {why}", manifest.version))?; |
| 1235 | Ok(Some((manifest.version, bytes))) |
| 1236 | } |
| 1237 | |
| 1238 | // --- The sandbox (launcher.rs) ------------------------------------------------ |
| 1239 | |
| 1240 | /// Starts the sandbox for `workspace`: registered with it the first |
| 1241 | /// time, with a token from the site; from its own registration after. |
| 1242 | fn start_sandbox(&mut self, workspace: String) { |
| 1243 | let app = self.app.clone(); |
| 1244 | let server = config::server(&app); |
| 1245 | let binary = match self.ensure_binary(&server) { |
| 1246 | Ok(binary) => binary, |
| 1247 | Err(why) => return self.not_started(workspace, None, why), |
| 1248 | }; |
| 1249 | let dir = native_dir(&app, Backend::Sandboxed); |
| 1250 | let mut status = match launcher::status(&binary, &dir) { |
| 1251 | Ok(status) => status, |
| 1252 | Err(why) => return self.no_status(why), |
| 1253 | }; |
| 1254 | self.seen(&status); |
| 1255 | // Nothing here can be sandboxed: why, and how to fix it; looked at again in a while. |
| 1256 | if !status.anything_available() { |
| 1257 | self.not_before = Instant::now() + LOOK_AGAIN; |
| 1258 | let (code, extra) = shown(&status); |
| 1259 | return self.set(code, extra); |
| 1260 | } |
| 1261 | // Another backend's registration goes; the sandbox's own is kept for its workspace. |
| 1262 | if Registration::load(&app).is_some_and(|r| r.backend != Backend::Sandboxed) { |
| 1263 | self.set(Code::Starting, detail("Removing this computer's earlier registration.")); |
| 1264 | self.forget(); |
| 1265 | } |
| 1266 | let kept = SandboxRegistration::load(&app); |
| 1267 | let ours = kept.as_ref().is_some_and(|k| k.server == server.as_str() && k.workspace == workspace); |
| 1268 | let made = status.capabilities.iter().any(|c| c.state != State::Absent) || status.state != State::Absent; |
| 1269 | if !ours && made && kept.is_none() { |
| 1270 | // Made by hand (`g1t-runner sandbox up`), and there is one per computer: it is the person's to remove. |
| 1271 | self.not_before = Instant::now() + LOOK_AGAIN; |
| 1272 | return self.set(Code::SandboxTaken, Extra::default()); |
| 1273 | } |
| 1274 | if !ours && made { |
| 1275 | // The app's sandbox, registered with another workspace or server. |
| 1276 | self.set(Code::Starting, detail("Removing this computer's sandbox for another workspace.")); |
| 1277 | self.forget_sandbox(); |
| 1278 | status = match launcher::status(&binary, &dir) { |
| 1279 | Ok(status) => status, |
| 1280 | Err(why) => return self.no_status(why), |
| 1281 | }; |
| 1282 | } |
| 1283 | // The kinds of job the person stopped are stopped here too, before |
| 1284 | // anything starts (the launcher keeps them off); with every kind |
| 1285 | // stopped, nothing starts. |
| 1286 | let kinds = config::settings(&app).runner_capabilities; |
| 1287 | if status.per_kind() { |
| 1288 | let stopping: Vec<String> = status.capabilities.iter().filter(|c| !kinds.on(&c.id) && !c.off()).map(|c| c.id.clone()).collect(); |
| 1289 | for kind in &stopping { |
| 1290 | if let Err(why) = launcher::down_only(&binary, &dir, kind) { |
| 1291 | self.write_log(&format!("g1t: {} couldn't be stopped: {why}", diagnosis::kind_label(kind))); |
| 1292 | } |
| 1293 | } |
| 1294 | if !stopping.is_empty() { |
| 1295 | status = match launcher::status(&binary, &dir) { |
| 1296 | Ok(status) => status, |
| 1297 | Err(why) => return self.no_status(why), |
| 1298 | }; |
| 1299 | self.seen(&status); |
| 1300 | } |
| 1301 | } |
| 1302 | let wanted: Vec<String> = status.capabilities.iter().filter(|c| c.available && kinds.on(&c.id)).map(|c| c.id.clone()).collect(); |
| 1303 | if status.capabilities.iter().any(|c| c.available) && wanted.is_empty() { |
| 1304 | self.not_before = Instant::now() + LOOK_AGAIN; |
| 1305 | return self.set(Code::KindsStopped, Extra::default()); |
| 1306 | } |
| 1307 | let mut token = None; |
| 1308 | if !ours || !kept.as_ref().is_some_and(|k| k.registered) || status.unregistered() { |
| 1309 | match self.token.take() { |
| 1310 | Some((for_workspace, given)) if for_workspace == workspace => token = Some(given), |
| 1311 | _ => return self.want(&workspace), |
| 1312 | } |
| 1313 | SandboxRegistration { server: server.to_string(), workspace: workspace.clone(), registered: false }.save(&app); |
| 1314 | } |
| 1315 | self.hold_workspace(&workspace); |
| 1316 | let generation = self.generation + 1; |
| 1317 | self.generation = generation; |
| 1318 | self.run = Some(Run::new(generation, Engine::Launcher, Backend::Sandboxed, workspace.clone(), Process::Sandbox(None), token.is_some())); |
| 1319 | // A new release's image first, then the sandbox starts again. |
| 1320 | let step = if self.image_pending && status.linux().state != State::Absent { Step::Update } else { Step::Up }; |
| 1321 | self.image_pending = false; |
| 1322 | let name = backend::machine_name(); |
| 1323 | let url = server.as_str().trim_end_matches('/').to_owned(); |
| 1324 | let up = launcher::Up { url: &url, name: &name, labels: "desktop", token: token.as_deref(), only: wanted.iter().map(String::as_str).collect() }; |
| 1325 | let (args, starting) = match step { |
| 1326 | Step::Update => (launcher::update_args(&dir), vec![]), |
| 1327 | _ => (launcher::up_args(&dir, &up), wanted.clone()), |
| 1328 | }; |
| 1329 | if let Err(why) = self.spawn_step(step, args, up.token) { |
| 1330 | self.run = None; |
| 1331 | return self.not_started(workspace, token, why); |
| 1332 | } |
| 1333 | self.now_starting(starting); |
| 1334 | self.set(Code::Starting, detail(STARTING_SANDBOX)); |
| 1335 | } |
| 1336 | |
| 1337 | /// Says which kinds of job a launcher command is starting now. |
| 1338 | fn now_starting(&self, kinds: Vec<String>) { |
| 1339 | let changed = { |
| 1340 | let shared = self.app.state::<Shared>(); |
| 1341 | let mut now = shared.now.lock().unwrap(); |
| 1342 | let changed = now.starting != kinds; |
| 1343 | now.starting = kinds; |
| 1344 | changed |
| 1345 | }; |
| 1346 | if changed { |
| 1347 | publish(&self.app); |
| 1348 | } |
| 1349 | } |
| 1350 | |
| 1351 | /// Each kind of job as the person has it: one they stopped is stopped |
| 1352 | /// (`down --only`), one they started is started (`up --only`), and one |
| 1353 | /// that should run and doesn't while another runs is tried again in a |
| 1354 | /// while: every five minutes while the release has no sandbox images. |
| 1355 | /// One launcher command at a time, each leaving the others as they are. |
| 1356 | fn kinds(&mut self, workspace: Option<&str>) { |
| 1357 | if !self.run.as_ref().is_some_and(|run| run.engine == Engine::Launcher) { |
| 1358 | return; |
| 1359 | } |
| 1360 | let Some(status) = self.app.state::<Shared>().now.lock().unwrap().sandbox.clone() else { return }; |
| 1361 | if !status.per_kind() { |
| 1362 | return; |
| 1363 | } |
| 1364 | let on = config::settings(&self.app).runner_capabilities; |
| 1365 | for capability in &status.capabilities { |
| 1366 | if !on.on(&capability.id) && !capability.off() { |
| 1367 | return self.kind_step(Step::Stop(capability.id.clone()), None); |
| 1368 | } |
| 1369 | if on.on(&capability.id) && capability.off() && capability.available { |
| 1370 | return self.start_kind(capability, workspace); |
| 1371 | } |
| 1372 | } |
| 1373 | // Nothing runs: the sandbox as a whole starts again (sandbox_stopped). |
| 1374 | if !status.running() { |
| 1375 | self.retry.clear(); |
| 1376 | return; |
| 1377 | } |
| 1378 | let now = Instant::now(); |
| 1379 | for capability in &status.capabilities { |
| 1380 | let id = capability.id.as_str(); |
| 1381 | let wanting = on.on(id) && !capability.off() && capability.available && matches!(capability.state, State::Error | State::Stopped | State::Absent); |
| 1382 | if !wanting { |
| 1383 | self.retry.retain(|(kind, _, _)| kind != id); |
| 1384 | continue; |
| 1385 | } |
| 1386 | let images = id == "linux" && status.trouble().is_some_and(|(cause, _)| launcher::why(&cause) == launcher::Why::NoImages); |
| 1387 | match self.retry.iter().position(|(kind, _, _)| kind == id) { |
| 1388 | // Just seen not running: tried again in a while. |
| 1389 | None => self.retry.push((id.to_owned(), now + again(images, 1), 1)), |
| 1390 | Some(at) if now >= self.retry[at].1 => { |
| 1391 | let tries = self.retry[at].2 + 1; |
| 1392 | self.retry[at] = (id.to_owned(), now + again(images, tries), tries); |
| 1393 | self.write_log(&format!("g1t: trying {} again.", diagnosis::kind_label(id))); |
| 1394 | return self.start_kind(capability, workspace); |
| 1395 | } |
| 1396 | Some(_) => {} |
| 1397 | } |
| 1398 | } |
| 1399 | } |
| 1400 | |
| 1401 | /// Starts one kind of job; one never registered needs a token from the |
| 1402 | /// site first, which is asked for, and it starts once it is here. |
| 1403 | fn start_kind(&mut self, capability: &launcher::Capability, workspace: Option<&str>) { |
| 1404 | let mut token = None; |
| 1405 | if capability.state == State::Absent { |
| 1406 | let Some(workspace) = workspace else { return }; |
| 1407 | match self.token.take() { |
| 1408 | Some((for_workspace, given)) if for_workspace == workspace => token = Some(given), |
| 1409 | other => { |
| 1410 | self.token = other; |
| 1411 | if wanted(&self.app).is_none() { |
| 1412 | *self.app.state::<Shared>().wanted.lock().unwrap() = Some(workspace.to_owned()); |
| 1413 | let _ = self.app.emit_to(EventTarget::webview(frame::SITE), WANTED_EVENT, workspace.to_owned()); |
| 1414 | } |
| 1415 | return; |
| 1416 | } |
| 1417 | } |
| 1418 | } |
| 1419 | self.kind_step(Step::Start(capability.id.clone()), token); |
| 1420 | } |
| 1421 | |
| 1422 | /// `up --only` or `down --only` one kind of job, while the rest run on. |
| 1423 | fn kind_step(&mut self, step: Step, token: Option<String>) { |
| 1424 | let dir = native_dir(&self.app, Backend::Sandboxed); |
| 1425 | let (args, starting, said) = match &step { |
| 1426 | Step::Start(kind) => { |
| 1427 | let url = config::server(&self.app).as_str().trim_end_matches('/').to_owned(); |
| 1428 | let name = backend::machine_name(); |
| 1429 | let up = launcher::Up { url: &url, name: &name, labels: "desktop", token: token.as_deref(), only: vec![kind.as_str()] }; |
| 1430 | (launcher::up_args(&dir, &up), vec![kind.clone()], format!("starting {}", diagnosis::kind_label(kind))) |
| 1431 | } |
| 1432 | Step::Stop(kind) => (launcher::down_only_args(&dir, kind), vec![], format!("stopping {}", diagnosis::kind_label(kind))), |
| 1433 | Step::Up | Step::Update => return, |
| 1434 | }; |
| 1435 | self.write_log(&format!("g1t: {said}.")); |
| 1436 | match self.spawn_step(step, args, token.as_deref()) { |
| 1437 | Ok(()) => self.now_starting(starting), |
| 1438 | Err(why) => self.write_log(&format!("g1t: {why}")), |
| 1439 | } |
| 1440 | } |
| 1441 | |
| 1442 | /// `sandbox status` didn't answer: a `g1t-runner` from before its |
| 1443 | /// launcher, which a newer release replaces, or one that failed. |
| 1444 | fn no_status(&mut self, why: String) { |
| 1445 | self.write_log(&format!("g1t: the sandbox's status: {why}")); |
| 1446 | self.failures += 1; |
| 1447 | if why.contains("older than its sandbox launcher") { |
| 1448 | let server = config::server(&self.app); |
| 1449 | if let Ok(Some((version, bytes))) = self.newer_release(&server) |
| 1450 | && native::put(&folder(&self.app), &bytes, &version).is_ok() |
| 1451 | { |
| 1452 | self.note(None, Some(version)); |
| 1453 | self.not_before = Instant::now(); |
| 1454 | return; |
| 1455 | } |
| 1456 | self.not_before = Instant::now() + MOST_BACKOFF; |
| 1457 | return self.set(Code::NoLauncher, detail(why)); |
| 1458 | } |
| 1459 | self.not_before = Instant::now() + LOOK_AGAIN; |
| 1460 | self.set(Code::SandboxFailed, Extra { detail: Some(why), wait_seconds: Some(LOOK_AGAIN.as_secs()), ..Extra::default() }); |
| 1461 | } |
| 1462 | |
| 1463 | /// Runs a launcher command for the sandbox's run, reading its output. |
| 1464 | fn spawn_step(&mut self, step: Step, args: Vec<std::ffi::OsString>, token: Option<&str>) -> Result<(), String> { |
| 1465 | let binary = native::binary(&folder(&self.app)); |
| 1466 | let mut command = launcher::command(&binary, args); |
| 1467 | launcher::with_token(&mut command, token); |
| 1468 | let mut child = command.spawn().map_err(|e| format!("g1t-runner sandbox {} could not start: {e}", step.name()))?; |
| 1469 | let _ = std::fs::write(folder(&self.app).join("pid"), child.id().to_string()); |
| 1470 | let Some(generation) = self.run.as_ref().map(|run| run.generation) else { |
| 1471 | native::stop(&mut child); |
| 1472 | return Ok(()); |
| 1473 | }; |
| 1474 | self.follow(generation, &mut child); |
| 1475 | let run = self.run.as_mut().expect("checked above"); |
| 1476 | run.json = None; |
| 1477 | run.process = Process::Sandbox(Some((step, child))); |
| 1478 | Ok(()) |
| 1479 | } |
| 1480 | |
| 1481 | /// `update` on the running sandbox, while it has no job. |
| 1482 | fn sandbox_step(&mut self, step: Step) { |
| 1483 | if self.run.as_ref().is_none_or(|run| run.step().is_some()) { |
| 1484 | return; |
| 1485 | } |
| 1486 | let dir = native_dir(&self.app, Backend::Sandboxed); |
| 1487 | if let Err(why) = self.spawn_step(step, launcher::update_args(&dir), None) { |
| 1488 | self.write_log(&format!("g1t: {why}")); |
| 1489 | } |
| 1490 | } |
| 1491 | |
| 1492 | /// Asks the sandbox how it is, every few seconds, on a thread of its own. |
| 1493 | fn poll(&mut self) { |
| 1494 | let Some(run) = self.run.as_mut().filter(|run| run.engine == Engine::Launcher) else { return }; |
| 1495 | if run.polling || run.polled_at.is_some_and(|at| at.elapsed() < launcher::STATUS_EVERY) { |
| 1496 | return; |
| 1497 | } |
| 1498 | run.polling = true; |
| 1499 | run.polled_at = Some(Instant::now()); |
| 1500 | let (tx, generation) = (self.tx.clone(), run.generation); |
| 1501 | let binary = native::binary(&folder(&self.app)); |
| 1502 | let dir = native_dir(&self.app, Backend::Sandboxed); |
| 1503 | let spawned = std::thread::Builder::new().name("g1t-sandbox-status".into()).spawn(move || { |
| 1504 | let _ = tx.send(Ask::Sandbox(generation, launcher::status(&binary, &dir).map(Box::new))); |
| 1505 | }); |
| 1506 | if spawned.is_err() { |
| 1507 | run.polling = false; |
| 1508 | } |
| 1509 | } |
| 1510 | |
| 1511 | /// What a poll said. |
| 1512 | fn polled(&mut self, generation: u64, status: Result<Box<Status>, String>) { |
| 1513 | let Some(run) = self.run.as_mut().filter(|run| run.generation == generation) else { return }; |
| 1514 | run.polling = false; |
| 1515 | if std::mem::take(&mut run.stale) { |
| 1516 | return; |
| 1517 | } |
| 1518 | match status { |
| 1519 | Ok(status) => self.sandbox_now(*status), |
| 1520 | // Once is nothing: the next poll asks again. |
| 1521 | Err(why) => self.write_log(&format!("g1t: the sandbox's status: {why}")), |
| 1522 | } |
| 1523 | } |
| 1524 | |
| 1525 | /// Keeps what a status says for the tray, settings and the site. |
| 1526 | fn seen(&mut self, status: &Status) { |
| 1527 | let shared = self.app.state::<Shared>(); |
| 1528 | let mut now = shared.now.lock().unwrap(); |
| 1529 | now.sandbox = Some(status.clone()); |
| 1530 | if let Some(version) = status.version() { |
| 1531 | now.version = Some(version); |
| 1532 | } |
| 1533 | now.job = status.job().map(launcher::Job::said); |
| 1534 | } |
| 1535 | |
| 1536 | /// The sandbox as it is now, while it is the run. |
| 1537 | fn sandbox_now(&mut self, status: Status) { |
| 1538 | let had = self.app.state::<Shared>().now.lock().unwrap().job.clone(); |
| 1539 | let Some(run) = self.run.as_mut() else { return }; |
| 1540 | let step = run.step(); |
| 1541 | let job = status.job().map(launcher::Job::said); |
| 1542 | let was = had.filter(|_| run.busy); |
| 1543 | run.busy = job.is_some(); |
| 1544 | run.listening = status.running(); |
| 1545 | let update_failed = self.update_failed.clone(); |
| 1546 | if was != job { |
| 1547 | if let Some(ended) = &was { |
| 1548 | self.write_log(&format!("g1t: {ended} ended.")); |
| 1549 | } |
| 1550 | if let Some(took) = &job { |
| 1551 | self.write_log(&format!("g1t: Took {took}.")); |
| 1552 | } |
| 1553 | } |
| 1554 | self.seen(&status); |
| 1555 | match &step { |
| 1556 | Some(Step::Up) => return self.set(Code::Starting, detail(STARTING_SANDBOX)), |
| 1557 | Some(Step::Update) if status.state == State::Updating => return self.set(Code::Updating, detail("Updating the sandbox to the newest image.")), |
| 1558 | _ => {} |
| 1559 | } |
| 1560 | let (code, extra) = shown(&status); |
| 1561 | // Every kind of job stopped by the person: nothing to start again. |
| 1562 | if step.is_none() && status.all_off() && !status.running() { |
| 1563 | self.run = None; |
| 1564 | self.generation += 1; |
| 1565 | self.retry.clear(); |
| 1566 | self.not_before = Instant::now() + LOOK_AGAIN; |
| 1567 | return self.set(Code::KindsStopped, Extra::default()); |
| 1568 | } |
| 1569 | if step.is_none() && !status.running() && !matches!(status.state, State::Starting | State::Updating) { |
| 1570 | return self.sandbox_stopped(&status, code, extra); |
| 1571 | } |
| 1572 | match (code, update_failed) { |
| 1573 | (Code::Idle, Some(why)) => self.set(Code::UpdateFailed, detail(why)), |
| 1574 | (code, _) => self.set(code, extra), |
| 1575 | } |
| 1576 | } |
| 1577 | |
| 1578 | /// The sandbox stopped by itself, or never got going: started again, |
| 1579 | /// waiting longer each time, or registered again when that is why. |
| 1580 | fn sandbox_stopped(&mut self, status: &Status, code: Code, extra: Extra) { |
| 1581 | let error = status.error.clone().or_else(|| extra.detail.clone()).unwrap_or_default(); |
| 1582 | if self.registration_trouble(&error) { |
| 1583 | return; |
| 1584 | } |
| 1585 | self.run = None; |
| 1586 | self.generation += 1; |
| 1587 | self.failures += 1; |
| 1588 | // A release without the sandbox's images is looked at again every few minutes. |
| 1589 | let wait = if code == Code::WaitingForImage { launcher::IMAGES_AGAIN } else { again(false, self.failures) }; |
| 1590 | self.not_before = Instant::now() + wait; |
| 1591 | let (code, extra) = match code { |
| 1592 | Code::Idle | Code::Busy | Code::Starting | Code::Updating => (Code::SandboxFailed, Extra { detail: status.error.clone().or_else(|| some_text("The sandbox stopped by itself.")), ..Extra::default() }), |
| 1593 | code => (code, extra), |
| 1594 | }; |
| 1595 | self.set(code, Extra { wait_seconds: Some(wait.as_secs()), ..extra }); |
| 1596 | } |
| 1597 | |
| 1598 | /// When the sandbox's trouble is its registration: true when the app |
| 1599 | /// has seen to it, and the next start registers again. |
| 1600 | fn registration_trouble(&mut self, error: &str) -> bool { |
| 1601 | match launcher::why(error) { |
| 1602 | launcher::Why::TokenRefused | launcher::Why::Unregistered => { |
| 1603 | if let Some(mut kept) = SandboxRegistration::load(&self.app) { |
| 1604 | kept.registered = false; |
| 1605 | kept.save(&self.app); |
| 1606 | } |
| 1607 | self.halt(); |
| 1608 | self.not_before = Instant::now(); |
| 1609 | true |
| 1610 | } |
| 1611 | launcher::Why::Forgotten => { |
| 1612 | self.halt(); |
| 1613 | self.forget_sandbox(); |
| 1614 | self.not_before = Instant::now(); |
| 1615 | true |
| 1616 | } |
| 1617 | _ => false, |
| 1618 | } |
| 1619 | } |
| 1620 | |
| 1621 | /// A launcher command ended: what it printed last is the sandbox's status. |
| 1622 | fn launched(&mut self, generation: u64) { |
| 1623 | let Some(run) = self.run.as_mut().filter(|run| run.generation == generation) else { return }; |
| 1624 | let Process::Sandbox(slot) = &mut run.process else { return }; |
| 1625 | let Some((step, mut child)) = slot.take() else { return }; |
| 1626 | let worked = child.wait().is_ok_and(|status| status.success()); |
| 1627 | let _ = std::fs::remove_file(folder(&self.app).join("pid")); |
| 1628 | let printed = run.json.take().unwrap_or_default().join("\n"); |
| 1629 | run.stale = run.polling; |
| 1630 | let with_token = run.with_token; |
| 1631 | let status = launcher::parse(&printed); |
| 1632 | { |
| 1633 | let shared = self.app.state::<Shared>(); |
| 1634 | let mut now = shared.now.lock().unwrap(); |
| 1635 | now.starting.clear(); |
| 1636 | now.download = None; |
| 1637 | } |
| 1638 | let error = match (&status, worked) { |
| 1639 | (Ok(status), true) => status.error.clone().filter(|_| !status.running()), |
| 1640 | (Ok(status), false) => Some(status.error.clone().unwrap_or_else(|| format!("g1t-runner sandbox {} failed.", step.name()))), |
| 1641 | (Err(why), _) => Some(why.clone()), |
| 1642 | }; |
| 1643 | let status = status.ok(); |
| 1644 | let running = status.as_ref().is_some_and(Status::running); |
| 1645 | if let Some(error) = &error { |
| 1646 | self.write_log(&format!("g1t: sandbox {}: {error}", step.name())); |
| 1647 | } |
| 1648 | // One kind of job started or stopped: how the sandbox is now says |
| 1649 | // the rest, and one that didn't start is tried again in a while. |
| 1650 | if matches!(step, Step::Start(_) | Step::Stop(_)) { |
| 1651 | if let Some(status) = status { |
| 1652 | self.sandbox_now(status); |
| 1653 | } |
| 1654 | return; |
| 1655 | } |
| 1656 | // Registered: from now on it starts with no token. |
| 1657 | if step == Step::Up && with_token && (error.is_none() || running) { |
| 1658 | let app = self.app.clone(); |
| 1659 | if let Some(run) = self.run.as_mut() { |
| 1660 | run.with_token = false; |
| 1661 | let registration = Registration { server: config::server(&app).to_string(), workspace: run.workspace.clone(), backend: Backend::Sandboxed }; |
| 1662 | SandboxRegistration { server: registration.server.clone(), workspace: registration.workspace.clone(), registered: true }.save(&app); |
| 1663 | registration.save(&app); |
| 1664 | } |
| 1665 | } |
| 1666 | if let Some(error) = error.clone() { |
| 1667 | if self.registration_trouble(&error) { |
| 1668 | return; |
| 1669 | } |
| 1670 | if step == Step::Update { |
| 1671 | self.update_failed = Some(format!("The sandbox's image couldn't be updated: {error}")); |
| 1672 | } else if !running { |
| 1673 | // Nothing runs: tidied away, and tried again in a while; |
| 1674 | // a release without the sandbox's images every few minutes. |
| 1675 | self.halt(); |
| 1676 | self.failures += 1; |
| 1677 | let (code, cause, fix) = status |
| 1678 | .as_ref() |
| 1679 | .and_then(diagnosis::sandbox_trouble) |
| 1680 | .unwrap_or_else(|| (diagnosis::sandbox_code(launcher::why(&error)), error.clone(), None)); |
| 1681 | let wait = if code == Code::WaitingForImage { launcher::IMAGES_AGAIN } else { again(false, self.failures) }; |
| 1682 | self.not_before = Instant::now() + wait; |
| 1683 | // The cards say why from what `up` said, not from the stopped sandbox. |
| 1684 | if let Some(failed) = status { |
| 1685 | self.app.state::<Shared>().now.lock().unwrap().sandbox = Some(failed); |
| 1686 | } |
| 1687 | return self.set(code, Extra { detail: Some(cause), fix, wait_seconds: Some(wait.as_secs()), ..Extra::default() }); |
| 1688 | } |
| 1689 | } else if step == Step::Up { |
| 1690 | self.failures = 0; |
| 1691 | } else { |
| 1692 | self.update_failed = None; |
| 1693 | } |
| 1694 | if step == Step::Update && !running { |
| 1695 | // Updated while stopped: it starts again with the new image. |
| 1696 | self.run = None; |
| 1697 | self.generation += 1; |
| 1698 | self.not_before = Instant::now(); |
| 1699 | return; |
| 1700 | } |
| 1701 | if let Some(status) = status { |
| 1702 | self.sandbox_now(status); |
| 1703 | } |
| 1704 | } |
| 1705 | } |
| 1706 | |
| 1707 | /// What the tray says while the sandbox starts. |
| 1708 | const STARTING_SANDBOX: &str = "Starting the sandbox. The first time, it downloads and checks the sandbox's image, which takes a few minutes."; |
| 1709 | |
| 1710 | fn some_text(text: &str) -> Option<String> { |
| 1711 | Some(text.to_owned()) |
| 1712 | } |
| 1713 | |
| 1714 | /// How long before trying again, the `tries`th time: every few minutes |
| 1715 | /// while the release has no sandbox images, else longer each time. |
| 1716 | fn again(images: bool, tries: u32) -> Duration { |
| 1717 | if images { launcher::IMAGES_AGAIN } else { Duration::from_secs(15 * 2u64.pow(tries.min(6))).min(MOST_BACKOFF) } |
| 1718 | } |
| 1719 | |
| 1720 | /// What the app shows for how the sandbox is, with no launcher command |
| 1721 | /// running: what its runners do while one runs (each kind of job's card |
| 1722 | /// says the rest), else what is wrong with Linux jobs. |
| 1723 | fn shown(status: &Status) -> (Code, Extra) { |
| 1724 | if status.job().is_some() { |
| 1725 | return (Code::Busy, Extra::default()); |
| 1726 | } |
| 1727 | if status.running() { |
| 1728 | return (Code::Idle, Extra::default()); |
| 1729 | } |
| 1730 | if let Some((code, cause, fix)) = diagnosis::sandbox_trouble(status) { |
| 1731 | return (code, Extra { detail: Some(cause), fix, ..Extra::default() }); |
| 1732 | } |
| 1733 | match status.linux().state { |
| 1734 | State::Starting => (Code::Starting, detail(STARTING_SANDBOX)), |
| 1735 | State::Updating => (Code::Updating, detail("Updating the sandbox to the newest image.")), |
| 1736 | _ if status.all_off() => (Code::KindsStopped, Extra::default()), |
| 1737 | _ => (Code::SandboxFailed, detail("The sandbox isn't running.")), |
| 1738 | } |
| 1739 | } |
| 1740 | |
| 1741 | /// What `register-and-run` reads: where g1t is, the runner's name and |
| 1742 | /// labels, and the token, the first time only. The app updates the runner, |
| 1743 | /// so the runner does not update itself; registering again takes the |
| 1744 | /// place of this computer's earlier runner of the same name. |
| 1745 | fn environment(server: &Url, backend: Backend, token: Option<&str>) -> Vec<(&'static str, String)> { |
| 1746 | let mut envs = vec![ |
| 1747 | ("G1T_RUNNER_URL", server.as_str().trim_end_matches('/').to_owned()), |
| 1748 | ("G1T_RUNNER_NAME", backend::machine_name()), |
| 1749 | ("G1T_RUNNER_LABELS", "desktop".to_owned()), |
| 1750 | ("G1T_RUNNER_REPLACE", "1".to_owned()), |
| 1751 | ("G1T_RUNNER_NO_AUTO_UPDATE", "1".to_owned()), |
| 1752 | ]; |
| 1753 | if backend == Backend::Host { |
| 1754 | envs.push(("G1T_RUNNER_NO_DOCKER", "1".to_owned())); |
| 1755 | } |
| 1756 | if let Some(token) = token { |
| 1757 | envs.push(("G1T_RUNNER_TOKEN", token.to_owned())); |
| 1758 | } |
| 1759 | envs |
| 1760 | } |
| 1761 | |
| 1762 | #[cfg(test)] |
| 1763 | mod tests { |
| 1764 | use super::*; |
| 1765 | |
| 1766 | fn view(code: Code, job: Option<&str>) -> View { |
| 1767 | let facts = Facts { workspace: Some("acme".into()), backend: "sandboxed", machine: "box".into(), job: job.map(str::to_owned), ..Facts::default() }; |
| 1768 | View { |
| 1769 | diagnosis: diagnosis::diagnose(code, &facts), |
| 1770 | closed: diagnosis::closed(&facts), |
| 1771 | running: code == Code::Idle, |
| 1772 | version: None, |
| 1773 | backend: Backend::Sandboxed, |
| 1774 | workspace: Some("acme".into()), |
| 1775 | workspaces: vec![], |
| 1776 | enabled: true, |
| 1777 | paused: false, |
| 1778 | link: None, |
| 1779 | machine: "box".into(), |
| 1780 | platform: "windows".into(), |
| 1781 | log: vec![], |
| 1782 | } |
| 1783 | } |
| 1784 | |
| 1785 | #[test] |
| 1786 | fn the_tray_says_what_the_runner_is_doing() { |
| 1787 | assert_eq!(headline(&view(Code::Idle, None)), "Runner: Waiting for jobs"); |
| 1788 | assert_eq!(headline(&view(Code::Busy, Some("Build (acme/web)"))), "Runner: Running Build (acme/web)"); |
| 1789 | assert_eq!(headline(&view(Code::NoDocker, None)), "Runner: Not running: Docker isn't running"); |
| 1790 | assert_eq!(headline(&view(Code::Busy, Some(&"x".repeat(200)))).chars().count(), 60); |
| 1791 | } |
| 1792 | |
| 1793 | #[test] |
| 1794 | fn the_runner_is_told_where_and_who_and_the_token_only_once() { |
| 1795 | let server = Url::parse("https://g1t.sh/").unwrap(); |
| 1796 | let envs = environment(&server, Backend::Host, Some("g1trt_abc")); |
| 1797 | let get = |name: &str| envs.iter().find(|(n, _)| *n == name).map(|(_, v)| v.as_str()); |
| 1798 | assert_eq!(get("G1T_RUNNER_URL"), Some("https://g1t.sh")); |
| 1799 | assert_eq!(get("G1T_RUNNER_LABELS"), Some("desktop")); |
| 1800 | assert_eq!(get("G1T_RUNNER_NO_DOCKER"), Some("1")); |
| 1801 | assert_eq!(get("G1T_RUNNER_NO_AUTO_UPDATE"), Some("1")); |
| 1802 | assert_eq!(get("G1T_RUNNER_TOKEN"), Some("g1trt_abc")); |
| 1803 | let again = environment(&server, Backend::Docker, None); |
| 1804 | assert!(!again.iter().any(|(name, _)| *name == "G1T_RUNNER_TOKEN" || *name == "G1T_RUNNER_NO_DOCKER")); |
| 1805 | } |
| 1806 | |
| 1807 | fn status(json: &str) -> Status { |
| 1808 | launcher::parse(json).unwrap() |
| 1809 | } |
| 1810 | |
| 1811 | #[test] |
| 1812 | fn the_sandbox_shows_what_its_runners_do_and_linux_trouble_first() { |
| 1813 | let running = status(r#"{"schema":1,"state":"running","capabilities":[{"id":"linux","available":true,"state":"running"},{"id":"windows","available":false,"state":"absent","cause":"Windows Sandbox is not turned on, or this edition of Windows has none (Home does not)."}]}"#); |
| 1814 | assert_eq!(shown(&running).0, Code::Idle); |
| 1815 | let busy = status(r#"{"schema":1,"state":"running","job":{"kind":"workflow","id":"j","name":"build","repo":"acme/web"}}"#); |
| 1816 | assert_eq!(shown(&busy).0, Code::Busy); |
| 1817 | let starting = status(r#"{"schema":1,"state":"starting","capabilities":[{"id":"linux","available":true,"state":"starting"}]}"#); |
| 1818 | assert_eq!(shown(&starting).0, Code::Starting); |
| 1819 | let updating = status(r#"{"schema":1,"state":"updating","capabilities":[{"id":"linux","available":true,"state":"updating"}]}"#); |
| 1820 | assert_eq!(shown(&updating).0, Code::Updating); |
| 1821 | // Windows jobs run while WSL is missing: the runner waits for jobs, |
| 1822 | // and the Linux card says what is wrong (diagnosis.rs). |
| 1823 | let no_wsl = status(r#"{"schema":1,"state":"error","error":"WSL is not installed, and the sandbox for Linux jobs is a WSL distribution of its own.","capabilities":[ |
| 1824 | {"id":"linux","available":false,"state":"error","cause":"WSL is not installed, and the sandbox for Linux jobs is a WSL distribution of its own.","fix":"Open a terminal as administrator and run `wsl --install --no-distribution`."}, |
| 1825 | {"id":"windows","available":true,"state":"running"}]}"#); |
| 1826 | assert_eq!(shown(&no_wsl).0, Code::Idle); |
| 1827 | let (code, extra) = shown(&status(r#"{"schema":1,"state":"error","error":"WSL is not installed, and the sandbox for Linux jobs is a WSL distribution of its own.","capabilities":[ |
| 1828 | {"id":"linux","available":false,"state":"error","cause":"WSL is not installed, and the sandbox for Linux jobs is a WSL distribution of its own."}, |
| 1829 | {"id":"windows","available":false,"state":"absent"}]}"#)); |
| 1830 | assert_eq!(code, Code::NoWsl); |
| 1831 | assert!(extra.detail.unwrap().starts_with("WSL is not installed")); |
| 1832 | // 0.3.0 without its images, on Home: waiting for them, not failing. |
| 1833 | let images = status(r#"{"schema":1,"state":"error","error":"release 0.3.0 has no sandbox images","capabilities":[{"id":"linux","available":true,"state":"error","turned_off":false},{"id":"windows","available":false,"state":"absent","turned_off":false}]}"#); |
| 1834 | assert_eq!(shown(&images).0, Code::WaitingForImage); |
| 1835 | assert_eq!(again(true, 5), launcher::IMAGES_AGAIN); |
| 1836 | assert_eq!(again(false, 1), Duration::from_secs(30)); |
| 1837 | assert_eq!(again(false, 9), MOST_BACKOFF); |
| 1838 | // Every kind of job stopped by the person. |
| 1839 | let off = status(r#"{"schema":1,"state":"stopped","capabilities":[{"id":"linux","available":true,"state":"stopped","turned_off":true},{"id":"windows","available":true,"state":"stopped","turned_off":true}]}"#); |
| 1840 | assert_eq!(shown(&off).0, Code::KindsStopped); |
| 1841 | let failed = status(r#"{"schema":1,"state":"error","error":"the sandbox did not start within 180 seconds","capabilities":[{"id":"linux","available":true,"state":"error"}]}"#); |
| 1842 | let (code, extra) = shown(&failed); |
| 1843 | assert_eq!((code, extra.detail.as_deref()), (Code::SandboxFailed, Some("the sandbox did not start within 180 seconds"))); |
| 1844 | let stopped = status(r#"{"schema":1,"state":"stopped","capabilities":[{"id":"linux","available":true,"state":"stopped"},{"id":"windows","available":true,"state":"stopped"}]}"#); |
| 1845 | assert_eq!(shown(&stopped).0, Code::SandboxFailed); |
| 1846 | } |
| 1847 | |
| 1848 | #[test] |
| 1849 | fn the_site_names_workspaces_in_its_own_words() { |
| 1850 | let offered: Vec<Offered> = serde_json::from_str(r#"[{"slug":"acme","name":"Acme"},{"slug":"solo"}]"#).unwrap(); |
| 1851 | assert_eq!(offered[1], Offered { slug: "solo".into(), name: None }); |
| 1852 | } |
| 1853 | } |