| 1 | //! The work service: issues, pull requests, comments and sessions. |
| 2 | //! |
| 3 | //! Other services reach it over `POST /rpc/<method>`; see |
| 4 | //! `g1t_contracts::work` for the methods and their arguments. It also |
| 5 | //! consumes its queue of events from the bus. |
| 6 | |
| 7 | mod rows; |
| 8 | |
| 9 | use g1t_contracts::events::{ |
| 10 | CommentCreated, Event, IssueEvent, NewEvent, Publish, PullEvent, SessionAppended, |
| 11 | }; |
| 12 | use g1t_contracts::repos::{ForkArgs, GetArgs, HeadArgs, LandArgs, Landed, Repo, RepoPath}; |
| 13 | use g1t_contracts::time::rfc3339; |
| 14 | use g1t_contracts::work::*; |
| 15 | use g1t_contracts::{FailureCode, Outcome, User, Viewer, new_id}; |
| 16 | use g1t_kit::{args, now_ms, reply, rpc_method}; |
| 17 | use serde::Serialize; |
| 18 | use worker::wasm_bindgen::JsValue; |
| 19 | use worker::{ |
| 20 | Context, D1Database, Env, Fetcher, MessageBatch, MessageExt, Request, Response, Result, event, |
| 21 | }; |
| 22 | |
| 23 | use rows::{CommentRow, IssueRow, NumberRow, PullRow, SessionRow, ValueRow}; |
| 24 | |
| 25 | const SOURCE: &str = "work"; |
| 26 | const MAX_ENTRY_BATCH: usize = 200; |
| 27 | const MAX_ENTRY_CHARS: usize = 64_000; |
| 28 | const MAX_TITLE_CHARS: usize = 200; |
| 29 | const SESSION_PAGE: u32 = 500; |
| 30 | const LIST_PAGE: u32 = 100; |
| 31 | const UNVERIFIED: &str = "Confirm your email address first. Check your inbox, or resend the link from the banner on g1t.sh."; |
| 32 | |
| 33 | const ISSUE_COLUMNS: &str = "issues.*, |
| 34 | (SELECT count(*) FROM pulls WHERE pulls.issue_id = issues.id) AS pull_count, |
| 35 | (SELECT count(*) FROM comments |
| 36 | WHERE comments.repo_id = issues.repo_id AND comments.number = issues.number) AS comment_count"; |
| 37 | |
| 38 | fn no_issue<T>() -> Outcome<T> { |
| 39 | Outcome::fail(FailureCode::NotFound, "Issue not found.") |
| 40 | } |
| 41 | |
| 42 | fn no_pull<T>() -> Outcome<T> { |
| 43 | Outcome::fail(FailureCode::NotFound, "Pull request not found.") |
| 44 | } |
| 45 | |
| 46 | fn optional(value: &Option<String>) -> JsValue { |
| 47 | value.as_deref().map_or(JsValue::NULL, JsValue::from) |
| 48 | } |
| 49 | |
| 50 | fn optional_number(value: Option<u32>) -> JsValue { |
| 51 | value.map_or(JsValue::NULL, JsValue::from) |
| 52 | } |
| 53 | |
| 54 | /// The lowercase name a `State` is stored and sent as. |
| 55 | fn state_name(state: Option<State>) -> Option<&'static str> { |
| 56 | state.map(|state| match state { |
| 57 | State::Open => "open", |
| 58 | State::Closed => "closed", |
| 59 | }) |
| 60 | } |
| 61 | |
| 62 | /// A trimmed title, or why it cannot be used. |
| 63 | fn valid_title(title: &str) -> std::result::Result<&str, &'static str> { |
| 64 | let title = title.trim(); |
| 65 | if title.is_empty() { |
| 66 | Err("A title is required.") |
| 67 | } else if title.chars().count() > MAX_TITLE_CHARS { |
| 68 | Err("That title is too long.") |
| 69 | } else { |
| 70 | Ok(title) |
| 71 | } |
| 72 | } |
| 73 | |
| 74 | /// Unwraps an `Outcome`, returning its failure from the enclosing method. |
| 75 | macro_rules! check { |
| 76 | ($outcome:expr) => { |
| 77 | match $outcome { |
| 78 | Outcome::Ok(value) => value, |
| 79 | Outcome::Fail(failure) => return Ok(Outcome::Fail(failure)), |
| 80 | } |
| 81 | }; |
| 82 | } |
| 83 | |
| 84 | struct Work { |
| 85 | db: D1Database, |
| 86 | repos: Fetcher, |
| 87 | events: Fetcher, |
| 88 | } |
| 89 | |
| 90 | impl Work { |
| 91 | async fn publish<T: Serialize>( |
| 92 | &self, |
| 93 | kind: &'static str, |
| 94 | repo_id: &str, |
| 95 | actor: &User, |
| 96 | data: T, |
| 97 | ) -> Result<()> { |
| 98 | let event = NewEvent { |
| 99 | kind, |
| 100 | source: SOURCE, |
| 101 | repo_id: Some(repo_id.to_owned()), |
| 102 | actor: Some(actor.id.clone()), |
| 103 | data, |
| 104 | }; |
| 105 | g1t_kit::call( |
| 106 | &self.events, |
| 107 | "publish", |
| 108 | &Publish { |
| 109 | events: vec![event], |
| 110 | }, |
| 111 | ) |
| 112 | .await |
| 113 | } |
| 114 | |
| 115 | /// The repository, if the viewer may see it. Whether they may is |
| 116 | /// decided by the repos service. |
| 117 | async fn repo(&self, path: &RepoPath, viewer: &Viewer) -> Result<Outcome<Repo>> { |
| 118 | g1t_kit::call( |
| 119 | &self.repos, |
| 120 | "get", |
| 121 | &GetArgs { |
| 122 | path: path.clone(), |
| 123 | viewer: viewer.clone(), |
| 124 | }, |
| 125 | ) |
| 126 | .await |
| 127 | } |
| 128 | |
| 129 | /// The next number in the repository's sequence. Taking it is one |
| 130 | /// statement, so concurrent opens cannot be given the same number. |
| 131 | async fn next_number(&self, repo_id: &str) -> Result<u32> { |
| 132 | let row = self |
| 133 | .db |
| 134 | .prepare( |
| 135 | "INSERT INTO counters (repo_id, last) VALUES (?, 1) |
| 136 | ON CONFLICT (repo_id) DO UPDATE SET last = last + 1 |
| 137 | RETURNING last AS n", |
| 138 | ) |
| 139 | .bind(&[repo_id.into()])? |
| 140 | .first::<NumberRow>(None) |
| 141 | .await?; |
| 142 | row.map(|row| row.n) |
| 143 | .ok_or_else(|| worker::Error::RustError("no number was assigned".into())) |
| 144 | } |
| 145 | |
| 146 | async fn issue(&self, repo_id: &str, number: u32) -> Result<Option<Issue>> { |
| 147 | Ok(self |
| 148 | .db |
| 149 | .prepare(format!( |
| 150 | "SELECT {ISSUE_COLUMNS} FROM issues WHERE repo_id = ? AND number = ?" |
| 151 | )) |
| 152 | .bind(&[repo_id.into(), number.into()])? |
| 153 | .first::<IssueRow>(None) |
| 154 | .await? |
| 155 | .map(Issue::from)) |
| 156 | } |
| 157 | |
| 158 | async fn pull(&self, repo_id: &str, number: u32) -> Result<Option<Pull>> { |
| 159 | Ok(self |
| 160 | .db |
| 161 | .prepare("SELECT * FROM pulls WHERE repo_id = ? AND number = ?") |
| 162 | .bind(&[repo_id.into(), number.into()])? |
| 163 | .first::<PullRow>(None) |
| 164 | .await? |
| 165 | .map(Pull::from)) |
| 166 | } |
| 167 | |
| 168 | async fn comments(&self, repo_id: &str, number: u32) -> Result<Vec<Comment>> { |
| 169 | let rows = self |
| 170 | .db |
| 171 | .prepare( |
| 172 | "SELECT * FROM comments WHERE repo_id = ? AND number = ? ORDER BY id LIMIT 500", |
| 173 | ) |
| 174 | .bind(&[repo_id.into(), number.into()])? |
| 175 | .all() |
| 176 | .await? |
| 177 | .results::<CommentRow>()?; |
| 178 | Ok(rows.into_iter().map(Comment::from).collect()) |
| 179 | } |
| 180 | |
| 181 | /// The repository and one of its issues, as seen by `viewer`. |
| 182 | async fn issue_at( |
| 183 | &self, |
| 184 | path: &RepoPath, |
| 185 | number: u32, |
| 186 | viewer: &Viewer, |
| 187 | ) -> Result<Outcome<(Repo, Issue)>> { |
| 188 | let Outcome::Ok(repo) = self.repo(path, viewer).await? else { |
| 189 | return Ok(no_issue()); |
| 190 | }; |
| 191 | Ok(match self.issue(&repo.id, number).await? { |
| 192 | Some(issue) => Outcome::Ok((repo, issue)), |
| 193 | None => no_issue(), |
| 194 | }) |
| 195 | } |
| 196 | |
| 197 | /// The repository and one of its pull requests, as seen by `viewer`. |
| 198 | async fn pull_at( |
| 199 | &self, |
| 200 | path: &RepoPath, |
| 201 | number: u32, |
| 202 | viewer: &Viewer, |
| 203 | ) -> Result<Outcome<(Repo, Pull)>> { |
| 204 | let Outcome::Ok(repo) = self.repo(path, viewer).await? else { |
| 205 | return Ok(no_pull()); |
| 206 | }; |
| 207 | Ok(match self.pull(&repo.id, number).await? { |
| 208 | Some(pull) => Outcome::Ok((repo, pull)), |
| 209 | None => no_pull(), |
| 210 | }) |
| 211 | } |
| 212 | |
| 213 | fn issue_event(issue: &Issue) -> IssueEvent { |
| 214 | IssueEvent { |
| 215 | issue_id: issue.id.clone(), |
| 216 | repo_id: issue.repo_id.clone(), |
| 217 | number: issue.number, |
| 218 | ..IssueEvent::default() |
| 219 | } |
| 220 | } |
| 221 | |
| 222 | fn pull_event(pull: &Pull) -> PullEvent { |
| 223 | PullEvent { |
| 224 | pull_id: pull.id.clone(), |
| 225 | repo_id: pull.repo_id.clone(), |
| 226 | number: pull.number, |
| 227 | issue: pull.issue, |
| 228 | ..PullEvent::default() |
| 229 | } |
| 230 | } |
| 231 | |
| 232 | // --- Issues ------------------------------------------------------------ |
| 233 | |
| 234 | async fn open_issue(&self, a: OpenIssueArgs) -> Result<Outcome<Issue>> { |
| 235 | if !a.actor.verified { |
| 236 | return Ok(Outcome::fail(FailureCode::Forbidden, UNVERIFIED)); |
| 237 | } |
| 238 | let title = match valid_title(&a.title) { |
| 239 | Ok(title) => title, |
| 240 | Err(message) => return Ok(Outcome::fail(FailureCode::Invalid, message)), |
| 241 | }; |
| 242 | let Some(labels) = normalize_labels(&a.labels) else { |
| 243 | return Ok(Outcome::fail( |
| 244 | FailureCode::Invalid, |
| 245 | "An issue can have up to 10 labels of up to 40 characters each.", |
| 246 | )); |
| 247 | }; |
| 248 | let repo = check!(self.repo(&a.repo, &Some(a.actor.clone())).await?); |
| 249 | let checks: Vec<&str> = a |
| 250 | .checks |
| 251 | .iter() |
| 252 | .map(|check| check.trim()) |
| 253 | .filter(|check| !check.is_empty()) |
| 254 | .collect(); |
| 255 | |
| 256 | let now = now_ms(); |
| 257 | let id = new_id("iss", now); |
| 258 | let number = self.next_number(&repo.id).await?; |
| 259 | let timestamp = rfc3339(now); |
| 260 | self.db |
| 261 | .prepare( |
| 262 | "INSERT INTO issues |
| 263 | (id, repo_id, number, title, body, labels, checks, author_id, author_name, |
| 264 | created_at, updated_at) |
| 265 | VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)", |
| 266 | ) |
| 267 | .bind(&[ |
| 268 | id.as_str().into(), |
| 269 | repo.id.as_str().into(), |
| 270 | number.into(), |
| 271 | title.into(), |
| 272 | a.body.trim().into(), |
| 273 | serde_json::to_string(&labels)?.into(), |
| 274 | serde_json::to_string(&checks)?.into(), |
| 275 | a.actor.id.as_str().into(), |
| 276 | a.actor.username.as_str().into(), |
| 277 | timestamp.as_str().into(), |
| 278 | timestamp.as_str().into(), |
| 279 | ])? |
| 280 | .run() |
| 281 | .await?; |
| 282 | let Some(issue) = self.issue(&repo.id, number).await? else { |
| 283 | return Ok(no_issue()); |
| 284 | }; |
| 285 | self.publish( |
| 286 | "issue.opened", |
| 287 | &repo.id, |
| 288 | &a.actor, |
| 289 | IssueEvent { |
| 290 | title: Some(issue.title.clone()), |
| 291 | ..Self::issue_event(&issue) |
| 292 | }, |
| 293 | ) |
| 294 | .await?; |
| 295 | Ok(Outcome::Ok(issue)) |
| 296 | } |
| 297 | |
| 298 | async fn list_issues(&self, a: ListIssuesArgs) -> Result<Outcome<Vec<Issue>>> { |
| 299 | let repo = check!(self.repo(&a.repo, &a.viewer).await?); |
| 300 | let state = state_name(a.state).map_or(JsValue::NULL, JsValue::from); |
| 301 | let label = a |
| 302 | .label |
| 303 | .map(|label| label.trim().to_lowercase()) |
| 304 | .filter(|label| !label.is_empty()); |
| 305 | let rows = self |
| 306 | .db |
| 307 | .prepare(format!( |
| 308 | "SELECT {ISSUE_COLUMNS} FROM issues |
| 309 | WHERE repo_id = ? AND (? IS NULL OR state = ?) |
| 310 | AND (? IS NULL OR EXISTS |
| 311 | (SELECT 1 FROM json_each(issues.labels) WHERE json_each.value = ?)) |
| 312 | ORDER BY number DESC LIMIT ?" |
| 313 | )) |
| 314 | .bind(&[ |
| 315 | repo.id.into(), |
| 316 | state.clone(), |
| 317 | state, |
| 318 | optional(&label), |
| 319 | optional(&label), |
| 320 | LIST_PAGE.into(), |
| 321 | ])? |
| 322 | .all() |
| 323 | .await? |
| 324 | .results::<IssueRow>()?; |
| 325 | Ok(Outcome::Ok(rows.into_iter().map(Issue::from).collect())) |
| 326 | } |
| 327 | |
| 328 | async fn get_issue(&self, a: ViewArgs) -> Result<Outcome<IssueDetail>> { |
| 329 | let (repo, issue) = check!(self.issue_at(&a.repo, a.number, &a.viewer).await?); |
| 330 | let pulls = self |
| 331 | .db |
| 332 | .prepare("SELECT * FROM pulls WHERE issue_id = ? ORDER BY number") |
| 333 | .bind(&[issue.id.as_str().into()])? |
| 334 | .all() |
| 335 | .await? |
| 336 | .results::<PullRow>()?; |
| 337 | Ok(Outcome::Ok(IssueDetail { |
| 338 | comments: self.comments(&repo.id, issue.number).await?, |
| 339 | pulls: pulls.into_iter().map(Pull::from).collect(), |
| 340 | issue, |
| 341 | })) |
| 342 | } |
| 343 | |
| 344 | /// The issue, if `actor` wrote it or belongs to the repository's workspace. |
| 345 | async fn manageable_issue( |
| 346 | &self, |
| 347 | actor: &User, |
| 348 | path: &RepoPath, |
| 349 | number: u32, |
| 350 | ) -> Result<Outcome<Issue>> { |
| 351 | let (repo, issue) = check!(self.issue_at(path, number, &Some(actor.clone())).await?); |
| 352 | if issue.author.id != actor.id && !actor.is_member(&repo.namespace) { |
| 353 | return Ok(Outcome::fail( |
| 354 | FailureCode::Forbidden, |
| 355 | "Only the author or a member of the workspace can change an issue.", |
| 356 | )); |
| 357 | } |
| 358 | Ok(Outcome::Ok(issue)) |
| 359 | } |
| 360 | |
| 361 | async fn update_issue(&self, a: UpdateIssueArgs) -> Result<Outcome<Issue>> { |
| 362 | let issue = check!(self.manageable_issue(&a.actor, &a.repo, a.number).await?); |
| 363 | let title = match a.title.as_deref().map(valid_title) { |
| 364 | Some(Err(message)) => return Ok(Outcome::fail(FailureCode::Invalid, message)), |
| 365 | Some(Ok(title)) => Some(title.to_owned()), |
| 366 | None => None, |
| 367 | }; |
| 368 | let labels = match a.labels.as_deref().map(normalize_labels) { |
| 369 | Some(None) => { |
| 370 | return Ok(Outcome::fail( |
| 371 | FailureCode::Invalid, |
| 372 | "An issue can have up to 10 labels of up to 40 characters each.", |
| 373 | )); |
| 374 | } |
| 375 | Some(Some(labels)) => Some(serde_json::to_string(&labels)?), |
| 376 | None => None, |
| 377 | }; |
| 378 | let body = a.body.map(|body| body.trim().to_owned()); |
| 379 | self.db |
| 380 | .prepare( |
| 381 | "UPDATE issues |
| 382 | SET title = COALESCE(?, title), body = COALESCE(?, body), |
| 383 | labels = COALESCE(?, labels), updated_at = ? |
| 384 | WHERE id = ?", |
| 385 | ) |
| 386 | .bind(&[ |
| 387 | optional(&title), |
| 388 | optional(&body), |
| 389 | optional(&labels), |
| 390 | rfc3339(now_ms()).into(), |
| 391 | issue.id.as_str().into(), |
| 392 | ])? |
| 393 | .run() |
| 394 | .await?; |
| 395 | let Some(issue) = self.issue(&issue.repo_id, issue.number).await? else { |
| 396 | return Ok(no_issue()); |
| 397 | }; |
| 398 | self.publish( |
| 399 | "issue.updated", |
| 400 | &issue.repo_id, |
| 401 | &a.actor, |
| 402 | Self::issue_event(&issue), |
| 403 | ) |
| 404 | .await?; |
| 405 | Ok(Outcome::Ok(issue)) |
| 406 | } |
| 407 | |
| 408 | async fn close_issue(&self, a: IssueActionArgs) -> Result<Outcome<Issue>> { |
| 409 | let mut issue = check!(self.manageable_issue(&a.actor, &a.repo, a.number).await?); |
| 410 | if issue.state == State::Closed { |
| 411 | return Ok(Outcome::fail( |
| 412 | FailureCode::Conflict, |
| 413 | "This issue is already closed.", |
| 414 | )); |
| 415 | } |
| 416 | let reason = a.reason.unwrap_or(IssueReason::Completed); |
| 417 | let now = rfc3339(now_ms()); |
| 418 | self.db |
| 419 | .prepare( |
| 420 | "UPDATE issues SET state = 'closed', reason = ?, closed_at = ?, updated_at = ? |
| 421 | WHERE id = ?", |
| 422 | ) |
| 423 | .bind(&[ |
| 424 | reason.as_str().into(), |
| 425 | now.as_str().into(), |
| 426 | now.as_str().into(), |
| 427 | issue.id.as_str().into(), |
| 428 | ])? |
| 429 | .run() |
| 430 | .await?; |
| 431 | self.publish( |
| 432 | "issue.closed", |
| 433 | &issue.repo_id, |
| 434 | &a.actor, |
| 435 | IssueEvent { |
| 436 | reason: Some(reason.as_str()), |
| 437 | ..Self::issue_event(&issue) |
| 438 | }, |
| 439 | ) |
| 440 | .await?; |
| 441 | issue.state = State::Closed; |
| 442 | issue.reason = Some(reason); |
| 443 | issue.closed_at = Some(now.clone()); |
| 444 | issue.updated_at = now; |
| 445 | Ok(Outcome::Ok(issue)) |
| 446 | } |
| 447 | |
| 448 | async fn reopen_issue(&self, a: IssueActionArgs) -> Result<Outcome<Issue>> { |
| 449 | let mut issue = check!(self.manageable_issue(&a.actor, &a.repo, a.number).await?); |
| 450 | if issue.state == State::Open { |
| 451 | return Ok(Outcome::fail( |
| 452 | FailureCode::Conflict, |
| 453 | "This issue is already open.", |
| 454 | )); |
| 455 | } |
| 456 | let now = rfc3339(now_ms()); |
| 457 | self.db |
| 458 | .prepare( |
| 459 | "UPDATE issues |
| 460 | SET state = 'open', reason = NULL, resolved_by = NULL, closed_at = NULL, |
| 461 | updated_at = ? |
| 462 | WHERE id = ?", |
| 463 | ) |
| 464 | .bind(&[now.as_str().into(), issue.id.as_str().into()])? |
| 465 | .run() |
| 466 | .await?; |
| 467 | self.publish( |
| 468 | "issue.reopened", |
| 469 | &issue.repo_id, |
| 470 | &a.actor, |
| 471 | Self::issue_event(&issue), |
| 472 | ) |
| 473 | .await?; |
| 474 | issue.state = State::Open; |
| 475 | issue.reason = None; |
| 476 | issue.resolved_by = None; |
| 477 | issue.closed_at = None; |
| 478 | issue.updated_at = now; |
| 479 | Ok(Outcome::Ok(issue)) |
| 480 | } |
| 481 | |
| 482 | /// The default labels, then every other label in use on the repository. |
| 483 | async fn list_labels(&self, a: ViewArgs) -> Result<Outcome<Vec<String>>> { |
| 484 | let repo = check!(self.repo(&a.repo, &a.viewer).await?); |
| 485 | let used = self |
| 486 | .db |
| 487 | .prepare( |
| 488 | "SELECT DISTINCT json_each.value AS value |
| 489 | FROM issues, json_each(issues.labels) |
| 490 | WHERE issues.repo_id = ? ORDER BY 1 LIMIT 200", |
| 491 | ) |
| 492 | .bind(&[repo.id.into()])? |
| 493 | .all() |
| 494 | .await? |
| 495 | .results::<ValueRow>()?; |
| 496 | let mut labels: Vec<String> = DEFAULT_LABELS.iter().map(|label| (*label).into()).collect(); |
| 497 | for row in used { |
| 498 | if !labels.contains(&row.value) { |
| 499 | labels.push(row.value); |
| 500 | } |
| 501 | } |
| 502 | Ok(Outcome::Ok(labels)) |
| 503 | } |
| 504 | |
| 505 | async fn counts(&self, a: ViewArgs) -> Result<Outcome<Counts>> { |
| 506 | let repo = check!(self.repo(&a.repo, &a.viewer).await?); |
| 507 | let counts = self |
| 508 | .db |
| 509 | .prepare( |
| 510 | "SELECT |
| 511 | (SELECT count(*) FROM issues WHERE repo_id = ? AND state = 'open') AS issues, |
| 512 | (SELECT count(*) FROM pulls |
| 513 | WHERE repo_id = ? AND status IN ('draft', 'open')) AS pulls", |
| 514 | ) |
| 515 | .bind(&[repo.id.as_str().into(), repo.id.as_str().into()])? |
| 516 | .first::<Counts>(None) |
| 517 | .await?; |
| 518 | Ok(Outcome::Ok(counts.unwrap_or(Counts { |
| 519 | issues: 0, |
| 520 | pulls: 0, |
| 521 | }))) |
| 522 | } |
| 523 | |
| 524 | // --- Comments ---------------------------------------------------------- |
| 525 | |
| 526 | async fn add_comment(&self, a: AddCommentArgs) -> Result<Outcome<Comment>> { |
| 527 | if !a.actor.verified { |
| 528 | return Ok(Outcome::fail(FailureCode::Forbidden, UNVERIFIED)); |
| 529 | } |
| 530 | let body = a.body.trim(); |
| 531 | if body.is_empty() { |
| 532 | return Ok(Outcome::fail( |
| 533 | FailureCode::Invalid, |
| 534 | "A comment cannot be empty.", |
| 535 | )); |
| 536 | } |
| 537 | if body.chars().count() > MAX_ENTRY_CHARS { |
| 538 | return Ok(Outcome::fail( |
| 539 | FailureCode::Invalid, |
| 540 | "That comment is too long.", |
| 541 | )); |
| 542 | } |
| 543 | let repo = check!(self.repo(&a.repo, &Some(a.actor.clone())).await?); |
| 544 | // The number names an issue or a pull request, never both. |
| 545 | let table = if self.issue(&repo.id, a.number).await?.is_some() { |
| 546 | "issues" |
| 547 | } else if self.pull(&repo.id, a.number).await?.is_some() { |
| 548 | "pulls" |
| 549 | } else { |
| 550 | return Ok(Outcome::fail( |
| 551 | FailureCode::NotFound, |
| 552 | "No issue or pull request has that number.", |
| 553 | )); |
| 554 | }; |
| 555 | |
| 556 | let now = now_ms(); |
| 557 | let comment = Comment { |
| 558 | id: new_id("cmt", now), |
| 559 | author: a.actor.clone(), |
| 560 | body: body.to_owned(), |
| 561 | created_at: rfc3339(now), |
| 562 | }; |
| 563 | self.db |
| 564 | .batch(vec![ |
| 565 | self.db |
| 566 | .prepare( |
| 567 | "INSERT INTO comments |
| 568 | (id, repo_id, number, author_id, author_name, body, created_at) |
| 569 | VALUES (?, ?, ?, ?, ?, ?, ?)", |
| 570 | ) |
| 571 | .bind(&[ |
| 572 | comment.id.as_str().into(), |
| 573 | repo.id.as_str().into(), |
| 574 | a.number.into(), |
| 575 | a.actor.id.as_str().into(), |
| 576 | a.actor.username.as_str().into(), |
| 577 | body.into(), |
| 578 | comment.created_at.as_str().into(), |
| 579 | ])?, |
| 580 | self.db |
| 581 | .prepare(format!( |
| 582 | "UPDATE {table} SET updated_at = ? WHERE repo_id = ? AND number = ?" |
| 583 | )) |
| 584 | .bind(&[ |
| 585 | comment.created_at.as_str().into(), |
| 586 | repo.id.as_str().into(), |
| 587 | a.number.into(), |
| 588 | ])?, |
| 589 | ]) |
| 590 | .await?; |
| 591 | self.publish( |
| 592 | "comment.created", |
| 593 | &repo.id, |
| 594 | &a.actor, |
| 595 | CommentCreated { |
| 596 | comment_id: comment.id.clone(), |
| 597 | repo_id: repo.id.clone(), |
| 598 | number: a.number, |
| 599 | }, |
| 600 | ) |
| 601 | .await?; |
| 602 | Ok(Outcome::Ok(comment)) |
| 603 | } |
| 604 | |
| 605 | // --- Pull requests ----------------------------------------------------- |
| 606 | |
| 607 | async fn open_pull(&self, a: OpenPullArgs) -> Result<Outcome<Pull>> { |
| 608 | if !a.actor.verified { |
| 609 | return Ok(Outcome::fail(FailureCode::Forbidden, UNVERIFIED)); |
| 610 | } |
| 611 | let repo = check!(self.repo(&a.repo, &Some(a.actor.clone())).await?); |
| 612 | let issue = match a.issue { |
| 613 | Some(number) => match self.issue(&repo.id, number).await? { |
| 614 | Some(issue) if issue.state == State::Open => Some(issue), |
| 615 | Some(_) => { |
| 616 | return Ok(Outcome::fail( |
| 617 | FailureCode::Conflict, |
| 618 | "This issue is closed.", |
| 619 | )); |
| 620 | } |
| 621 | None => return Ok(no_issue()), |
| 622 | }, |
| 623 | None => None, |
| 624 | }; |
| 625 | // A pull request for an issue takes the issue's title unless given one. |
| 626 | let title = match (a.title.trim(), &issue) { |
| 627 | ("", Some(issue)) => issue.title.clone(), |
| 628 | (title, _) => match valid_title(title) { |
| 629 | Ok(title) => title.to_owned(), |
| 630 | Err(message) => return Ok(Outcome::fail(FailureCode::Invalid, message)), |
| 631 | }, |
| 632 | }; |
| 633 | let agent = match a.agent.trim() { |
| 634 | "" => "agent", |
| 635 | agent => agent, |
| 636 | }; |
| 637 | let runtime = match a.runtime { |
| 638 | Runtime::Hosted => "hosted", |
| 639 | Runtime::External => "external", |
| 640 | }; |
| 641 | |
| 642 | let now = now_ms(); |
| 643 | let id = new_id("pr", now); |
| 644 | let branch = a |
| 645 | .branch |
| 646 | .as_deref() |
| 647 | .map(str::trim) |
| 648 | .filter(|branch| !branch.is_empty()); |
| 649 | // The change is on a branch already pushed to the repository, or |
| 650 | // will be made in a fork created for this pull request. |
| 651 | let (fork, head) = match branch { |
| 652 | Some(branch) => { |
| 653 | if branch == repo.default_branch { |
| 654 | return Ok(Outcome::fail( |
| 655 | FailureCode::Invalid, |
| 656 | format!("Choose a branch other than {branch}."), |
| 657 | )); |
| 658 | } |
| 659 | let head: Option<String> = g1t_kit::call( |
| 660 | &self.repos, |
| 661 | "head", |
| 662 | &HeadArgs { |
| 663 | repo_id: repo.id.clone(), |
| 664 | branch: branch.to_owned(), |
| 665 | }, |
| 666 | ) |
| 667 | .await?; |
| 668 | let Some(head) = head else { |
| 669 | return Ok(Outcome::fail( |
| 670 | FailureCode::NotFound, |
| 671 | format!("There is no branch named {branch}. Push it first."), |
| 672 | )); |
| 673 | }; |
| 674 | let existing = self |
| 675 | .db |
| 676 | .prepare( |
| 677 | "SELECT number AS n FROM pulls |
| 678 | WHERE repo_id = ? AND source_branch = ? AND status IN ('draft', 'open')", |
| 679 | ) |
| 680 | .bind(&[repo.id.as_str().into(), branch.into()])? |
| 681 | .first::<NumberRow>(None) |
| 682 | .await?; |
| 683 | if let Some(existing) = existing { |
| 684 | return Ok(Outcome::fail( |
| 685 | FailureCode::Conflict, |
| 686 | format!("Pull request #{} is already open for {branch}.", existing.n), |
| 687 | )); |
| 688 | } |
| 689 | (None, Some(head)) |
| 690 | } |
| 691 | None => { |
| 692 | let fork: Outcome<Repo> = g1t_kit::call( |
| 693 | &self.repos, |
| 694 | "fork_for_pull", |
| 695 | &ForkArgs { |
| 696 | source_id: repo.id.clone(), |
| 697 | pull_id: id.clone(), |
| 698 | actor: a.actor.clone(), |
| 699 | }, |
| 700 | ) |
| 701 | .await?; |
| 702 | (Some(check!(fork)), None) |
| 703 | } |
| 704 | }; |
| 705 | // A branch already holds the work, so its pull request is ready for |
| 706 | // review from the start; one with a fork starts as a draft. |
| 707 | let status = if branch.is_some() { "open" } else { "draft" }; |
| 708 | let body = Some(a.body.trim().to_owned()).filter(|body| !body.is_empty()); |
| 709 | |
| 710 | let number = self.next_number(&repo.id).await?; |
| 711 | let timestamp = rfc3339(now); |
| 712 | self.db |
| 713 | .prepare( |
| 714 | "INSERT INTO pulls |
| 715 | (id, repo_id, number, issue_id, issue_number, title, body, agent, runtime, |
| 716 | status, fork_repo_id, fork_namespace, fork_name, source_branch, head_commit, |
| 717 | author_id, author_name, created_at, updated_at) |
| 718 | VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)", |
| 719 | ) |
| 720 | .bind(&[ |
| 721 | id.as_str().into(), |
| 722 | repo.id.as_str().into(), |
| 723 | number.into(), |
| 724 | optional(&issue.as_ref().map(|issue| issue.id.clone())), |
| 725 | optional_number(issue.as_ref().map(|issue| issue.number)), |
| 726 | title.into(), |
| 727 | optional(&body), |
| 728 | agent.into(), |
| 729 | runtime.into(), |
| 730 | status.into(), |
| 731 | optional(&fork.as_ref().map(|fork| fork.id.clone())), |
| 732 | optional(&fork.as_ref().map(|fork| fork.namespace.clone())), |
| 733 | optional(&fork.as_ref().map(|fork| fork.name.clone())), |
| 734 | optional(&branch.map(str::to_owned)), |
| 735 | optional(&head), |
| 736 | a.actor.id.as_str().into(), |
| 737 | a.actor.username.as_str().into(), |
| 738 | timestamp.as_str().into(), |
| 739 | timestamp.as_str().into(), |
| 740 | ])? |
| 741 | .run() |
| 742 | .await?; |
| 743 | let Some(pull) = self.pull(&repo.id, number).await? else { |
| 744 | return Ok(no_pull()); |
| 745 | }; |
| 746 | self.publish( |
| 747 | "pull.opened", |
| 748 | &repo.id, |
| 749 | &a.actor, |
| 750 | PullEvent { |
| 751 | agent: Some(pull.agent.clone()), |
| 752 | ..Self::pull_event(&pull) |
| 753 | }, |
| 754 | ) |
| 755 | .await?; |
| 756 | Ok(Outcome::Ok(pull)) |
| 757 | } |
| 758 | |
| 759 | async fn list_pulls(&self, a: ListPullsArgs) -> Result<Outcome<Vec<Pull>>> { |
| 760 | let repo = check!(self.repo(&a.repo, &a.viewer).await?); |
| 761 | let filter = match a.state { |
| 762 | Some(State::Open) => "AND status IN ('draft', 'open')", |
| 763 | Some(State::Closed) => "AND status IN ('merged', 'closed')", |
| 764 | None => "", |
| 765 | }; |
| 766 | let rows = self |
| 767 | .db |
| 768 | .prepare(format!( |
| 769 | "SELECT * FROM pulls WHERE repo_id = ? {filter} ORDER BY number DESC LIMIT ?" |
| 770 | )) |
| 771 | .bind(&[repo.id.into(), LIST_PAGE.into()])? |
| 772 | .all() |
| 773 | .await? |
| 774 | .results::<PullRow>()?; |
| 775 | Ok(Outcome::Ok(rows.into_iter().map(Pull::from).collect())) |
| 776 | } |
| 777 | |
| 778 | async fn get_pull(&self, a: ViewArgs) -> Result<Outcome<PullDetail>> { |
| 779 | let (repo, pull) = check!(self.pull_at(&a.repo, a.number, &a.viewer).await?); |
| 780 | let issue = match pull.issue { |
| 781 | Some(number) => self.issue(&repo.id, number).await?, |
| 782 | None => None, |
| 783 | }; |
| 784 | Ok(Outcome::Ok(PullDetail { |
| 785 | comments: self.comments(&repo.id, pull.number).await?, |
| 786 | issue, |
| 787 | pull, |
| 788 | })) |
| 789 | } |
| 790 | |
| 791 | /// The pull request, if it is still active and `actor` opened it or |
| 792 | /// belongs to the repository's workspace. |
| 793 | async fn manageable_pull( |
| 794 | &self, |
| 795 | actor: &User, |
| 796 | path: &RepoPath, |
| 797 | number: u32, |
| 798 | ) -> Result<Outcome<Pull>> { |
| 799 | let (repo, pull) = check!(self.pull_at(path, number, &Some(actor.clone())).await?); |
| 800 | if pull.author.id != actor.id && !actor.is_member(&repo.namespace) { |
| 801 | return Ok(Outcome::fail( |
| 802 | FailureCode::Forbidden, |
| 803 | "Only whoever opened a pull request, or a member of the workspace, can change it.", |
| 804 | )); |
| 805 | } |
| 806 | if !pull.status.is_active() { |
| 807 | return Ok(Outcome::fail( |
| 808 | FailureCode::Conflict, |
| 809 | format!("This pull request is already {}.", pull.status.as_str()), |
| 810 | )); |
| 811 | } |
| 812 | Ok(Outcome::Ok(pull)) |
| 813 | } |
| 814 | |
| 815 | /// Marks a draft ready for review, or updates the description of one |
| 816 | /// that already is. |
| 817 | async fn ready_pull(&self, a: PullActionArgs) -> Result<Outcome<Pull>> { |
| 818 | let mut pull = check!(self.manageable_pull(&a.actor, &a.repo, a.number).await?); |
| 819 | let summary = Some(a.summary.trim().to_owned()).filter(|summary| !summary.is_empty()); |
| 820 | let now = rfc3339(now_ms()); |
| 821 | self.db |
| 822 | .prepare( |
| 823 | "UPDATE pulls SET status = 'open', body = COALESCE(?, body), updated_at = ? |
| 824 | WHERE id = ?", |
| 825 | ) |
| 826 | .bind(&[ |
| 827 | optional(&summary), |
| 828 | now.as_str().into(), |
| 829 | pull.id.as_str().into(), |
| 830 | ])? |
| 831 | .run() |
| 832 | .await?; |
| 833 | if pull.status == PullStatus::Draft { |
| 834 | self.publish( |
| 835 | "pull.ready", |
| 836 | &pull.repo_id, |
| 837 | &a.actor, |
| 838 | Self::pull_event(&pull), |
| 839 | ) |
| 840 | .await?; |
| 841 | } |
| 842 | pull.status = PullStatus::Open; |
| 843 | pull.body = summary.or(pull.body); |
| 844 | pull.updated_at = now; |
| 845 | Ok(Outcome::Ok(pull)) |
| 846 | } |
| 847 | |
| 848 | async fn close_pull(&self, a: PullActionArgs) -> Result<Outcome<Pull>> { |
| 849 | let mut pull = check!(self.manageable_pull(&a.actor, &a.repo, a.number).await?); |
| 850 | let now = rfc3339(now_ms()); |
| 851 | self.db |
| 852 | .prepare("UPDATE pulls SET status = 'closed', updated_at = ? WHERE id = ?") |
| 853 | .bind(&[now.as_str().into(), pull.id.as_str().into()])? |
| 854 | .run() |
| 855 | .await?; |
| 856 | self.publish( |
| 857 | "pull.closed", |
| 858 | &pull.repo_id, |
| 859 | &a.actor, |
| 860 | Self::pull_event(&pull), |
| 861 | ) |
| 862 | .await?; |
| 863 | pull.status = PullStatus::Closed; |
| 864 | pull.updated_at = now; |
| 865 | Ok(Outcome::Ok(pull)) |
| 866 | } |
| 867 | |
| 868 | /// Lands the pull request on the repository's default branch. Unless |
| 869 | /// told to keep it open, that resolves the issue it was for: the issue |
| 870 | /// closes naming this pull request, and the others still in progress |
| 871 | /// for it close as superseded. |
| 872 | async fn merge_pull(&self, a: PullActionArgs) -> Result<Outcome<Pull>> { |
| 873 | let viewer = Some(a.actor.clone()); |
| 874 | let (repo, mut pull) = check!(self.pull_at(&a.repo, a.number, &viewer).await?); |
| 875 | match pull.status { |
| 876 | PullStatus::Open => {} |
| 877 | PullStatus::Draft => { |
| 878 | return Ok(Outcome::fail( |
| 879 | FailureCode::Conflict, |
| 880 | "This pull request is still a draft. Mark it ready for review first.", |
| 881 | )); |
| 882 | } |
| 883 | status => { |
| 884 | return Ok(Outcome::fail( |
| 885 | FailureCode::Conflict, |
| 886 | format!("This pull request is already {}.", status.as_str()), |
| 887 | )); |
| 888 | } |
| 889 | } |
| 890 | let issue = match pull.issue { |
| 891 | Some(number) if !a.keep_issue_open => self |
| 892 | .issue(&repo.id, number) |
| 893 | .await? |
| 894 | .filter(|issue| issue.state == State::Open), |
| 895 | _ => None, |
| 896 | }; |
| 897 | |
| 898 | // Whether the actor may write to the repository is decided by repos. |
| 899 | let landed: Outcome<Landed> = g1t_kit::call( |
| 900 | &self.repos, |
| 901 | "land", |
| 902 | &LandArgs { |
| 903 | // A pull request from a branch lands from the repository itself. |
| 904 | source_id: pull.fork_repo_id.clone().unwrap_or_else(|| repo.id.clone()), |
| 905 | branch: pull.branch.clone(), |
| 906 | actor: a.actor.clone(), |
| 907 | }, |
| 908 | ) |
| 909 | .await?; |
| 910 | let landed = check!(landed); |
| 911 | |
| 912 | let now = rfc3339(now_ms()); |
| 913 | let mut statements = vec![ |
| 914 | self.db |
| 915 | .prepare( |
| 916 | "UPDATE pulls |
| 917 | SET status = 'merged', head_commit = ?, merge_base = ?, merged_by = ?, |
| 918 | merged_at = ?, updated_at = ? |
| 919 | WHERE id = ?", |
| 920 | ) |
| 921 | .bind(&[ |
| 922 | landed.commit.as_str().into(), |
| 923 | optional(&landed.previous), |
| 924 | a.actor.username.as_str().into(), |
| 925 | now.as_str().into(), |
| 926 | now.as_str().into(), |
| 927 | pull.id.as_str().into(), |
| 928 | ])?, |
| 929 | ]; |
| 930 | if let Some(issue) = &issue { |
| 931 | statements.push( |
| 932 | self.db |
| 933 | .prepare( |
| 934 | "UPDATE issues |
| 935 | SET state = 'closed', reason = 'completed', resolved_by = ?, |
| 936 | closed_at = ?, updated_at = ? |
| 937 | WHERE id = ?", |
| 938 | ) |
| 939 | .bind(&[ |
| 940 | pull.number.into(), |
| 941 | now.as_str().into(), |
| 942 | now.as_str().into(), |
| 943 | issue.id.as_str().into(), |
| 944 | ])?, |
| 945 | ); |
| 946 | statements.push( |
| 947 | self.db |
| 948 | .prepare( |
| 949 | "UPDATE pulls SET status = 'closed', superseded_by = ?, updated_at = ? |
| 950 | WHERE issue_id = ? AND id != ? AND status IN ('draft', 'open')", |
| 951 | ) |
| 952 | .bind(&[ |
| 953 | pull.number.into(), |
| 954 | now.as_str().into(), |
| 955 | issue.id.as_str().into(), |
| 956 | pull.id.as_str().into(), |
| 957 | ])?, |
| 958 | ); |
| 959 | } |
| 960 | self.db.batch(statements).await?; |
| 961 | |
| 962 | self.publish( |
| 963 | "pull.merged", |
| 964 | &repo.id, |
| 965 | &a.actor, |
| 966 | PullEvent { |
| 967 | commit: Some(landed.commit.clone()), |
| 968 | ..Self::pull_event(&pull) |
| 969 | }, |
| 970 | ) |
| 971 | .await?; |
| 972 | if let Some(issue) = &issue { |
| 973 | self.publish( |
| 974 | "issue.closed", |
| 975 | &repo.id, |
| 976 | &a.actor, |
| 977 | IssueEvent { |
| 978 | reason: Some(IssueReason::Completed.as_str()), |
| 979 | resolved_by: Some(pull.number), |
| 980 | ..Self::issue_event(issue) |
| 981 | }, |
| 982 | ) |
| 983 | .await?; |
| 984 | } |
| 985 | |
| 986 | pull.status = PullStatus::Merged; |
| 987 | pull.head_commit = Some(landed.commit); |
| 988 | pull.merge_base = landed.previous; |
| 989 | pull.merged_by = Some(a.actor.username); |
| 990 | pull.merged_at = Some(now.clone()); |
| 991 | pull.updated_at = now; |
| 992 | Ok(Outcome::Ok(pull)) |
| 993 | } |
| 994 | |
| 995 | async fn list_active_pulls(&self, a: ViewerArgs) -> Result<Vec<ActivePull>> { |
| 996 | let Some(viewer) = a.viewer else { |
| 997 | return Ok(Vec::new()); |
| 998 | }; |
| 999 | let rows = self |
| 1000 | .db |
| 1001 | .prepare( |
| 1002 | "SELECT * FROM pulls |
| 1003 | WHERE author_id = ? AND status IN ('draft', 'open') |
| 1004 | ORDER BY updated_at DESC LIMIT 50", |
| 1005 | ) |
| 1006 | .bind(&[viewer.id.into()])? |
| 1007 | .all() |
| 1008 | .await? |
| 1009 | .results::<PullRow>()?; |
| 1010 | let mut active = Vec::with_capacity(rows.len()); |
| 1011 | for pull in rows.into_iter().map(Pull::from) { |
| 1012 | let issue = match pull.issue { |
| 1013 | Some(number) => self.issue(&pull.repo_id, number).await?, |
| 1014 | None => None, |
| 1015 | }; |
| 1016 | active.push(ActivePull { pull, issue }); |
| 1017 | } |
| 1018 | Ok(active) |
| 1019 | } |
| 1020 | |
| 1021 | // --- Sessions ---------------------------------------------------------- |
| 1022 | |
| 1023 | async fn append_session(&self, a: AppendSessionArgs) -> Result<Outcome<Appended>> { |
| 1024 | if a.entries.is_empty() { |
| 1025 | return Ok(Outcome::Ok(Appended { count: 0 })); |
| 1026 | } |
| 1027 | if a.entries.len() > MAX_ENTRY_BATCH { |
| 1028 | return Ok(Outcome::fail( |
| 1029 | FailureCode::Invalid, |
| 1030 | format!("Send at most {MAX_ENTRY_BATCH} entries at a time."), |
| 1031 | )); |
| 1032 | } |
| 1033 | let viewer = Some(a.actor.clone()); |
| 1034 | let (_, pull) = check!(self.pull_at(&a.repo, a.number, &viewer).await?); |
| 1035 | if pull.author.id != a.actor.id { |
| 1036 | return Ok(Outcome::fail( |
| 1037 | FailureCode::Forbidden, |
| 1038 | "Only whoever opened a pull request can record its session.", |
| 1039 | )); |
| 1040 | } |
| 1041 | |
| 1042 | let now = rfc3339(now_ms()); |
| 1043 | let count = a.entries.len() as u32; |
| 1044 | let mut statements = Vec::with_capacity(a.entries.len() + 1); |
| 1045 | for entry in a.entries { |
| 1046 | let kind = serde_json::to_value(entry.kind)?; |
| 1047 | let text: String = entry.text.chars().take(MAX_ENTRY_CHARS).collect(); |
| 1048 | // Each insert takes the next sequence number itself, so two |
| 1049 | // writers appending at once cannot collide. |
| 1050 | statements.push( |
| 1051 | self.db |
| 1052 | .prepare( |
| 1053 | "INSERT INTO session_entries (pull_id, seq, kind, text, tool, \"commit\", at) |
| 1054 | SELECT ?, COALESCE(MAX(seq), 0) + 1, ?, ?, ?, ?, ? |
| 1055 | FROM session_entries WHERE pull_id = ?", |
| 1056 | ) |
| 1057 | .bind(&[ |
| 1058 | pull.id.as_str().into(), |
| 1059 | kind.as_str().unwrap_or("note").into(), |
| 1060 | text.into(), |
| 1061 | optional(&entry.tool), |
| 1062 | optional(&entry.commit.or_else(|| pull.head_commit.clone())), |
| 1063 | now.as_str().into(), |
| 1064 | pull.id.as_str().into(), |
| 1065 | ])?, |
| 1066 | ); |
| 1067 | } |
| 1068 | statements.push( |
| 1069 | self.db |
| 1070 | .prepare("UPDATE pulls SET updated_at = ? WHERE id = ?") |
| 1071 | .bind(&[now.as_str().into(), pull.id.as_str().into()])?, |
| 1072 | ); |
| 1073 | self.db.batch(statements).await?; |
| 1074 | self.publish( |
| 1075 | "session.appended", |
| 1076 | &pull.repo_id, |
| 1077 | &a.actor, |
| 1078 | SessionAppended { |
| 1079 | pull_id: pull.id.clone(), |
| 1080 | repo_id: pull.repo_id.clone(), |
| 1081 | number: pull.number, |
| 1082 | count, |
| 1083 | }, |
| 1084 | ) |
| 1085 | .await?; |
| 1086 | Ok(Outcome::Ok(Appended { count })) |
| 1087 | } |
| 1088 | |
| 1089 | async fn read_session(&self, a: ViewArgs) -> Result<Outcome<Vec<SessionEntry>>> { |
| 1090 | let (_, pull) = check!(self.pull_at(&a.repo, a.number, &a.viewer).await?); |
| 1091 | let rows = self |
| 1092 | .db |
| 1093 | .prepare( |
| 1094 | "SELECT seq, kind, text, tool, \"commit\", at FROM session_entries |
| 1095 | WHERE pull_id = ? AND seq > ? ORDER BY seq LIMIT ?", |
| 1096 | ) |
| 1097 | .bind(&[pull.id.into(), a.after_seq.into(), SESSION_PAGE.into()])? |
| 1098 | .all() |
| 1099 | .await? |
| 1100 | .results::<SessionRow>()?; |
| 1101 | Ok(Outcome::Ok( |
| 1102 | rows.into_iter().map(SessionEntry::from).collect(), |
| 1103 | )) |
| 1104 | } |
| 1105 | |
| 1106 | /// A push moves the head of the pull request it concerns: the one whose |
| 1107 | /// fork was pushed to, or the one opened from the branch that moved. |
| 1108 | async fn on_event(&self, event: &Event) -> Result<()> { |
| 1109 | if event.kind != "git.push" { |
| 1110 | return Ok(()); |
| 1111 | } |
| 1112 | let (Some(repo_id), Some(after), Some(git_ref)) = ( |
| 1113 | event.repo_id.as_deref(), |
| 1114 | event.data["after"].as_str(), |
| 1115 | event.data["ref"].as_str(), |
| 1116 | ) else { |
| 1117 | return Ok(()); |
| 1118 | }; |
| 1119 | let now = rfc3339(now_ms()); |
| 1120 | let active = "status IN ('draft', 'open')"; |
| 1121 | let mut statements = Vec::new(); |
| 1122 | // A fork carries its pull request on its default branch. |
| 1123 | if event.data["defaultBranch"].as_bool() == Some(true) { |
| 1124 | statements.push( |
| 1125 | self.db |
| 1126 | .prepare(format!( |
| 1127 | "UPDATE pulls SET head_commit = ?, updated_at = ? |
| 1128 | WHERE fork_repo_id = ? AND {active}" |
| 1129 | )) |
| 1130 | .bind(&[after.into(), now.as_str().into(), repo_id.into()])?, |
| 1131 | ); |
| 1132 | } |
| 1133 | if let Some(branch) = git_ref.strip_prefix("refs/heads/") { |
| 1134 | statements.push( |
| 1135 | self.db |
| 1136 | .prepare(format!( |
| 1137 | "UPDATE pulls SET head_commit = ?, updated_at = ? |
| 1138 | WHERE repo_id = ? AND source_branch = ? AND {active}" |
| 1139 | )) |
| 1140 | .bind(&[ |
| 1141 | after.into(), |
| 1142 | now.as_str().into(), |
| 1143 | repo_id.into(), |
| 1144 | branch.into(), |
| 1145 | ])?, |
| 1146 | ); |
| 1147 | } |
| 1148 | self.db.batch(statements).await?; |
| 1149 | Ok(()) |
| 1150 | } |
| 1151 | } |
| 1152 | |
| 1153 | fn service(env: &Env) -> Result<Work> { |
| 1154 | Ok(Work { |
| 1155 | db: env.d1("DB")?, |
| 1156 | repos: env.service("REPOS")?, |
| 1157 | events: env.service("EVENTS")?, |
| 1158 | }) |
| 1159 | } |
| 1160 | |
| 1161 | #[event(fetch)] |
| 1162 | async fn fetch(mut request: Request, env: Env, _ctx: Context) -> Result<Response> { |
| 1163 | let Some(method) = rpc_method(&request) else { |
| 1164 | return Response::error("Not found", 404); |
| 1165 | }; |
| 1166 | let body: serde_json::Value = request.json().await?; |
| 1167 | let work = service(&env)?; |
| 1168 | |
| 1169 | match method.as_str() { |
| 1170 | "open_issue" => reply(&work.open_issue(args(body)?).await?), |
| 1171 | "list_issues" => reply(&work.list_issues(args(body)?).await?), |
| 1172 | "get_issue" => reply(&work.get_issue(args(body)?).await?), |
| 1173 | "update_issue" => reply(&work.update_issue(args(body)?).await?), |
| 1174 | "close_issue" => reply(&work.close_issue(args(body)?).await?), |
| 1175 | "reopen_issue" => reply(&work.reopen_issue(args(body)?).await?), |
| 1176 | "list_labels" => reply(&work.list_labels(args(body)?).await?), |
| 1177 | "counts" => reply(&work.counts(args(body)?).await?), |
| 1178 | "add_comment" => reply(&work.add_comment(args(body)?).await?), |
| 1179 | "open_pull" => reply(&work.open_pull(args(body)?).await?), |
| 1180 | "list_pulls" => reply(&work.list_pulls(args(body)?).await?), |
| 1181 | "get_pull" => reply(&work.get_pull(args(body)?).await?), |
| 1182 | "ready_pull" => reply(&work.ready_pull(args(body)?).await?), |
| 1183 | "close_pull" => reply(&work.close_pull(args(body)?).await?), |
| 1184 | "merge_pull" => reply(&work.merge_pull(args(body)?).await?), |
| 1185 | "list_active_pulls" => reply(&work.list_active_pulls(args(body)?).await?), |
| 1186 | "append_session" => reply(&work.append_session(args(body)?).await?), |
| 1187 | "read_session" => reply(&work.read_session(args(body)?).await?), |
| 1188 | _ => Response::error("Unknown method", 404), |
| 1189 | } |
| 1190 | } |
| 1191 | |
| 1192 | /// Events from the bus, delivered on this service's own queue. |
| 1193 | #[event(queue)] |
| 1194 | async fn queue(batch: MessageBatch<Event>, env: Env, _ctx: Context) -> Result<()> { |
| 1195 | let work = service(&env)?; |
| 1196 | for message in batch.messages()? { |
| 1197 | work.on_event(message.body()).await?; |
| 1198 | message.ack(); |
| 1199 | } |
| 1200 | Ok(()) |
| 1201 | } |