g1t/services/work/src/lifecycle.rs
| 1 | //! Seeing a pull request through. Once a g1t agent has made a change, g1t |
| 2 | //! takes each remaining step itself: the acceptance checks, a review by |
| 3 | //! another agent, sending the author back to address what either found, |
| 4 | //! and catching up when the branch it would land on has moved. It stops |
| 5 | //! when the pull request is ready for a person to merge, or when it has |
| 6 | //! tried and a person has to decide. |
| 7 | //! |
| 8 | //! This service decides what the next step is and claims it. The runner |
| 9 | //! service asks, on every event that could change the answer, and carries |
| 10 | //! the step out in a sandbox. |
| 11 | |
| 12 | use g1t_contracts::events::PullEvent; |
| 13 | use g1t_contracts::repos::{GetByIdArgs, Repo, RepoPath}; |
| 14 | use g1t_contracts::time::rfc3339; |
| 15 | use g1t_contracts::work::*; |
| 16 | use g1t_contracts::{FailureCode, Membership, Outcome, Role, User, Viewer}; |
| 17 | use g1t_kit::now_ms; |
| 18 | use std::collections::HashMap; |
| 19 | |
| 20 | use serde::Deserialize; |
| 21 | use worker::Result; |
| 22 | use worker::wasm_bindgen::JsValue; |
| 23 | |
| 24 | use crate::Work; |
| 25 | use crate::reviews::{AGENT_ID, AGENT_NAME}; |
| 26 | use crate::rows::ValueRow; |
| 27 | |
| 28 | /// How long a claimed step is waited for before it may be taken again. |
| 29 | const REVIEW_MINUTES: u64 = 20; |
| 30 | const REVISION_MINUTES: u64 = 60; |
| 31 | const CATCH_UP_MINUTES: u64 = 30; |
| 32 | const MERGE_MINUTES: u64 = 2; |
| 33 | /// Who a merge made by a repository's settings is attributed to. Not an |
| 34 | /// account: `g1t` cannot be registered. |
| 35 | const POLICY_ACTOR_ID: &str = "g1t_policy"; |
| 36 | const POLICY_ACTOR_NAME: &str = "g1t"; |
| 37 | /// How much of a failed check's output the author is shown. |
| 38 | const MAX_CHECK_OUTPUT_CHARS: usize = 4_000; |
| 39 | const MANAGED_PAGE: u32 = 200; |
| 40 | |
| 41 | /// The part of a pull request's row that tracks its lifecycle. |
| 42 | #[derive(Deserialize)] |
| 43 | struct Progress { |
| 44 | managed: u8, |
| 45 | revisions: u32, |
| 46 | revised_at: Option<String>, |
| 47 | working_on: Option<String>, |
| 48 | working_until: Option<String>, |
| 49 | stalled: Option<String>, |
| 50 | } |
| 51 | |
| 52 | /// A merge asked for while the pull request was behind, as stored. |
| 53 | #[derive(serde::Serialize, Deserialize)] |
| 54 | #[serde(rename_all = "camelCase")] |
| 55 | struct LandRequest { |
| 56 | actor: User, |
| 57 | keep_issue_open: bool, |
| 58 | } |
| 59 | |
| 60 | #[derive(Deserialize)] |
| 61 | struct LandRow { |
| 62 | land_requested: Option<String>, |
| 63 | land_requested_at: Option<String>, |
| 64 | stalled: Option<String>, |
| 65 | } |
| 66 | |
| 67 | #[derive(Deserialize)] |
| 68 | struct FinishedReview { |
| 69 | finished_at: String, |
| 70 | verdict: Option<Verdict>, |
| 71 | } |
| 72 | |
| 73 | #[derive(Deserialize)] |
| 74 | struct ReviewNote { |
| 75 | body: String, |
| 76 | path: Option<String>, |
| 77 | line: Option<u32>, |
| 78 | } |
| 79 | |
| 80 | /// What the author is being sent back to address. |
| 81 | pub(crate) enum Feedback { |
| 82 | FailedChecks, |
| 83 | /// The review that finished at this time. |
| 84 | Review(String), |
| 85 | /// What a person who asked for changes wrote since the last revision. |
| 86 | Person(PersonRequest), |
| 87 | } |
| 88 | |
| 89 | /// A person's request for changes that still stands: their latest verdict, |
| 90 | /// made after the agent last revised. |
| 91 | #[derive(Clone, Debug, Deserialize)] |
| 92 | pub(crate) struct PersonRequest { |
| 93 | author_id: String, |
| 94 | author_name: String, |
| 95 | created_at: String, |
| 96 | } |
| 97 | |
| 98 | /// What should happen next, if it is g1t's turn. |
| 99 | pub(crate) enum Next { |
| 100 | /// A step is under way, or it is a person's turn. |
| 101 | Wait, |
| 102 | Review, |
| 103 | Revise(Feedback), |
| 104 | CatchUp, |
| 105 | /// Land it, because the repository says ready pull requests land. |
| 106 | Merge, |
| 107 | } |
| 108 | |
| 109 | /// Whether g1t made this pull request, and so sees it through. |
| 110 | pub(crate) fn made_by_g1t(pull: &Pull) -> bool { |
| 111 | pull.runtime == Runtime::Hosted && pull.agent == AGENT_NAME && pull.fork.is_some() |
| 112 | } |
| 113 | |
| 114 | fn at(stage: Stage, detail: impl Into<String>, revisions: u32) -> Lifecycle { |
| 115 | Lifecycle { |
| 116 | stage, |
| 117 | detail: detail.into(), |
| 118 | revisions, |
| 119 | } |
| 120 | } |
| 121 | |
| 122 | fn times(count: u32) -> String { |
| 123 | match count { |
| 124 | 1 => "once".to_owned(), |
| 125 | 2 => "twice".to_owned(), |
| 126 | count => format!("{count} times"), |
| 127 | } |
| 128 | } |
| 129 | |
| 130 | /// Everything the next step depends on. |
| 131 | struct Facts { |
| 132 | /// Still being made: not yet marked ready for review. |
| 133 | draft: bool, |
| 134 | /// Why g1t stopped, if it has. |
| 135 | stalled: Option<String>, |
| 136 | /// The step under way, if one was claimed and is still being waited for. |
| 137 | working_on: Option<String>, |
| 138 | check_status: Option<CheckStatus>, |
| 139 | /// A review someone asked for is being written. |
| 140 | review_pending: bool, |
| 141 | /// Whether the issue has acceptance checks at all. |
| 142 | has_checks: bool, |
| 143 | revisions: u32, |
| 144 | /// The latest finished review of the change as it is now. |
| 145 | review: Option<FinishedReview>, |
| 146 | /// Whether the branch it would land on has moved without it. |
| 147 | behind: bool, |
| 148 | /// Whether the repository lands a ready pull request by itself. |
| 149 | auto_merge: bool, |
| 150 | /// Whether the repository refuses to merge one that is behind. |
| 151 | require_up_to_date: bool, |
| 152 | /// Whether a second agent reviews it without being asked. |
| 153 | agent_review: bool, |
| 154 | /// How many times the author may be sent back. |
| 155 | max_revisions: u32, |
| 156 | /// What the repository's approval rule still wants, if anything. |
| 157 | approvals_missing: Option<String>, |
| 158 | /// A person asked for changes since the agent last revised. |
| 159 | person_request: Option<PersonRequest>, |
| 160 | /// Its place in the merge queue, and what is ahead of it there. |
| 161 | queued: Option<(QueueState, Vec<u32>)>, |
| 162 | } |
| 163 | |
| 164 | /// Where a pull request stands, and the step to take if it is g1t's turn. |
| 165 | /// |
| 166 | /// The order is: nothing while a step is under way; a person asking for |
| 167 | /// changes is answered first; the checks must pass; then a review must |
| 168 | /// approve; then it must be up to date. A person's or an agent's request |
| 169 | /// for changes, or a failed check, sends the author back, a limited number |
| 170 | /// of times, after which a person is asked. |
| 171 | fn decide(facts: Facts) -> (Lifecycle, Next) { |
| 172 | let revisions = facts.revisions; |
| 173 | let wait = |stage, detail: &str| (at(stage, detail, revisions), Next::Wait); |
| 174 | let exhausted = revisions >= facts.max_revisions; |
| 175 | |
| 176 | if facts.draft { |
| 177 | return wait(Stage::Working, "A g1t agent is making the change."); |
| 178 | } |
| 179 | if let Some(reason) = &facts.stalled { |
| 180 | return wait(Stage::NeedsYou, reason); |
| 181 | } |
| 182 | if let Some((state, ahead)) = &facts.queued { |
| 183 | let named = ahead.iter().map(|n| format!("#{n}")).collect::<Vec<_>>().join(", "); |
| 184 | let detail = match (state, ahead.is_empty()) { |
| 185 | (QueueState::Testing, true) => "In the merge queue: being tested on the default branch as it is.".to_owned(), |
| 186 | (QueueState::Testing, false) => { |
| 187 | format!("In the merge queue: being tested together with {named}, ahead of it.") |
| 188 | } |
| 189 | (QueueState::Passed, true) => "Passed in the merge queue. Landing.".to_owned(), |
| 190 | (QueueState::Passed, false) => { |
| 191 | format!("Passed in the merge queue together with {named}. It lands once they have.") |
| 192 | } |
| 193 | _ => "In the merge queue, waiting for its turn to be tested.".to_owned(), |
| 194 | }; |
| 195 | return wait(Stage::Queued, &detail); |
| 196 | } |
| 197 | match facts.working_on.as_deref() { |
| 198 | Some("revision") => { |
| 199 | return wait( |
| 200 | Stage::Revising, |
| 201 | "The agent is addressing what the checks or the review found.", |
| 202 | ); |
| 203 | } |
| 204 | Some("catch_up") => { |
| 205 | return wait( |
| 206 | Stage::CatchingUp, |
| 207 | "The agent is merging in the branch this will land on, which has moved.", |
| 208 | ); |
| 209 | } |
| 210 | Some("merge") => return wait(Stage::Ready, "Merging."), |
| 211 | Some(_) => return wait(Stage::Reviewing, "A g1t agent is reviewing the change."), |
| 212 | None => {} |
| 213 | } |
| 214 | if matches!( |
| 215 | facts.check_status, |
| 216 | Some(CheckStatus::Queued | CheckStatus::Running) |
| 217 | ) { |
| 218 | return wait(Stage::Checking, "The acceptance checks are running."); |
| 219 | } |
| 220 | if facts.review_pending { |
| 221 | return wait(Stage::Reviewing, "A g1t agent is reviewing the change."); |
| 222 | } |
| 223 | // A person asked for changes: the agent makes them, as it would for a |
| 224 | // review it asked for, before anything else. |
| 225 | if let Some(request) = &facts.person_request { |
| 226 | if exhausted { |
| 227 | return wait( |
| 228 | Stage::NeedsYou, |
| 229 | &format!( |
| 230 | "{} asked for changes, and the agent has already revised {}.", |
| 231 | request.author_name, |
| 232 | times(revisions) |
| 233 | ), |
| 234 | ); |
| 235 | } |
| 236 | return ( |
| 237 | at( |
| 238 | Stage::Revising, |
| 239 | format!( |
| 240 | "{} asked for changes. The agent is being sent back to make them.", |
| 241 | request.author_name |
| 242 | ), |
| 243 | revisions, |
| 244 | ), |
| 245 | Next::Revise(Feedback::Person(request.clone())), |
| 246 | ); |
| 247 | } |
| 248 | |
| 249 | if facts.has_checks { |
| 250 | match facts.check_status { |
| 251 | Some(CheckStatus::Passed) => {} |
| 252 | Some(CheckStatus::Failed) if exhausted => { |
| 253 | return wait( |
| 254 | Stage::NeedsYou, |
| 255 | &format!( |
| 256 | "The acceptance checks still fail after the agent revised {}.", |
| 257 | times(revisions) |
| 258 | ), |
| 259 | ); |
| 260 | } |
| 261 | Some(CheckStatus::Failed) => { |
| 262 | return ( |
| 263 | at( |
| 264 | Stage::Revising, |
| 265 | "The acceptance checks failed. The agent is being sent back to fix them.", |
| 266 | revisions, |
| 267 | ), |
| 268 | Next::Revise(Feedback::FailedChecks), |
| 269 | ); |
| 270 | } |
| 271 | Some(CheckStatus::Errored) => { |
| 272 | return wait(Stage::NeedsYou, "The acceptance checks could not be run."); |
| 273 | } |
| 274 | _ => { |
| 275 | return wait( |
| 276 | Stage::Checking, |
| 277 | "Waiting for the acceptance checks to start.", |
| 278 | ); |
| 279 | } |
| 280 | } |
| 281 | } |
| 282 | |
| 283 | // A second agent reviews it, unless the repository leaves review to people. |
| 284 | if facts.agent_review { |
| 285 | match facts.review { |
| 286 | None => { |
| 287 | return ( |
| 288 | at( |
| 289 | Stage::Reviewing, |
| 290 | "A g1t agent is about to review the change.", |
| 291 | revisions, |
| 292 | ), |
| 293 | Next::Review, |
| 294 | ); |
| 295 | } |
| 296 | Some(FinishedReview { verdict: None, .. }) => { |
| 297 | return wait(Stage::NeedsYou, "The review could not be completed."); |
| 298 | } |
| 299 | Some(FinishedReview { |
| 300 | verdict: Some(Verdict::RequestChanges), |
| 301 | .. |
| 302 | }) if exhausted => { |
| 303 | return wait( |
| 304 | Stage::NeedsYou, |
| 305 | &format!( |
| 306 | "The review still asks for changes after the agent revised {}.", |
| 307 | times(revisions) |
| 308 | ), |
| 309 | ); |
| 310 | } |
| 311 | Some(FinishedReview { |
| 312 | verdict: Some(Verdict::RequestChanges), |
| 313 | finished_at, |
| 314 | }) => { |
| 315 | return ( |
| 316 | at( |
| 317 | Stage::Revising, |
| 318 | "The review asked for changes. The agent is being sent back to make them.", |
| 319 | revisions, |
| 320 | ), |
| 321 | Next::Revise(Feedback::Review(finished_at)), |
| 322 | ); |
| 323 | } |
| 324 | Some(FinishedReview { |
| 325 | verdict: Some(Verdict::Approve), |
| 326 | .. |
| 327 | }) => {} |
| 328 | } |
| 329 | } |
| 330 | |
| 331 | // Only where the repository insists is catching up a step of its own, |
| 332 | // followed by the checks again. Elsewhere it happens as part of merging. |
| 333 | if facts.behind && facts.require_up_to_date { |
| 334 | return ( |
| 335 | at( |
| 336 | Stage::CatchingUp, |
| 337 | "The branch it will land on has moved. The agent is catching up.", |
| 338 | revisions, |
| 339 | ), |
| 340 | Next::CatchUp, |
| 341 | ); |
| 342 | } |
| 343 | // The repository wants approvals this does not have yet: people's turn, |
| 344 | // so it is shown as needing someone, not as g1t still working. |
| 345 | if let Some(missing) = &facts.approvals_missing { |
| 346 | return wait(Stage::NeedsYou, missing); |
| 347 | } |
| 348 | if facts.auto_merge { |
| 349 | return ( |
| 350 | at( |
| 351 | Stage::Ready, |
| 352 | "Everything this repository asks for is met. Merging, as its settings say.", |
| 353 | revisions, |
| 354 | ), |
| 355 | Next::Merge, |
| 356 | ); |
| 357 | } |
| 358 | wait( |
| 359 | Stage::Ready, |
| 360 | if facts.behind { |
| 361 | "Ready to merge. Merging brings it up to date with the default branch first." |
| 362 | } else { |
| 363 | "Everything this repository asks for is met. Ready to merge." |
| 364 | }, |
| 365 | ) |
| 366 | } |
| 367 | |
| 368 | impl Work { |
| 369 | /// Where a pull request stands and what g1t does next, remembered so |
| 370 | /// lists can show it without working it out again. `None` for one g1t |
| 371 | /// is not seeing through. |
| 372 | pub(crate) async fn assess( |
| 373 | &self, |
| 374 | pull: &Pull, |
| 375 | issue: &Option<Issue>, |
| 376 | behind: bool, |
| 377 | ) -> Result<Option<(Lifecycle, Next)>> { |
| 378 | let assessed = self.assess_now(pull, issue, behind).await?; |
| 379 | if let Some((lifecycle, _)) = &assessed { |
| 380 | self.remember(&pull.id, lifecycle).await?; |
| 381 | } |
| 382 | Ok(assessed) |
| 383 | } |
| 384 | |
| 385 | /// Saves where a pull request stands, for [`Self::remembered`]. |
| 386 | pub(crate) async fn remember(&self, pull_id: &str, lifecycle: &Lifecycle) -> Result<()> { |
| 387 | let stage = serde_json::to_value(lifecycle.stage)?; |
| 388 | self.db |
| 389 | .prepare("UPDATE pulls SET stage = ?, stage_detail = ? WHERE id = ?") |
| 390 | .bind(&[ |
| 391 | stage.as_str().unwrap_or_default().into(), |
| 392 | lifecycle.detail.as_str().into(), |
| 393 | pull_id.into(), |
| 394 | ])? |
| 395 | .run() |
| 396 | .await?; |
| 397 | Ok(()) |
| 398 | } |
| 399 | |
| 400 | async fn assess_now( |
| 401 | &self, |
| 402 | pull: &Pull, |
| 403 | issue: &Option<Issue>, |
| 404 | behind: bool, |
| 405 | ) -> Result<Option<(Lifecycle, Next)>> { |
| 406 | if !pull.status.is_active() { |
| 407 | return Ok(None); |
| 408 | } |
| 409 | let Some(progress) = self |
| 410 | .db |
| 411 | .prepare( |
| 412 | "SELECT managed, revisions, revised_at, working_on, working_until, stalled |
| 413 | FROM pulls WHERE id = ?", |
| 414 | ) |
| 415 | .bind(&[pull.id.as_str().into()])? |
| 416 | .first::<Progress>(None) |
| 417 | .await? |
| 418 | .filter(|progress| progress.managed != 0) |
| 419 | else { |
| 420 | return Ok(None); |
| 421 | }; |
| 422 | let now = rfc3339(now_ms()); |
| 423 | let working_on = progress |
| 424 | .working_until |
| 425 | .as_deref() |
| 426 | .is_some_and(|until| until > now.as_str()) |
| 427 | .then(|| progress.working_on.clone().unwrap_or_default()); |
| 428 | let review = self |
| 429 | .db |
| 430 | .prepare( |
| 431 | "SELECT finished_at, verdict FROM review_runs |
| 432 | WHERE pull_id = ? AND finished_at IS NOT NULL ORDER BY id DESC LIMIT 1", |
| 433 | ) |
| 434 | .bind(&[pull.id.as_str().into()])? |
| 435 | .first::<FinishedReview>(None) |
| 436 | .await? |
| 437 | // A review of what the change was before its last revision says |
| 438 | // nothing about what it is now. |
| 439 | .filter(|review| { |
| 440 | progress |
| 441 | .revised_at |
| 442 | .as_deref() |
| 443 | .is_none_or(|revised| review.finished_at.as_str() >= revised) |
| 444 | }); |
| 445 | let settings = self.settings(&pull.repo_id).await?; |
| 446 | Ok(Some(decide(Facts { |
| 447 | draft: pull.status == PullStatus::Draft, |
| 448 | stalled: progress.stalled, |
| 449 | working_on, |
| 450 | check_status: pull.check_status, |
| 451 | review_pending: self.review_pending(&pull.id).await?, |
| 452 | has_checks: issue.as_ref().is_some_and(|issue| !issue.checks.is_empty()), |
| 453 | revisions: progress.revisions, |
| 454 | review, |
| 455 | behind, |
| 456 | auto_merge: settings.auto_merge, |
| 457 | require_up_to_date: settings.require_up_to_date, |
| 458 | agent_review: settings.agent_review, |
| 459 | max_revisions: settings.max_revisions, |
| 460 | approvals_missing: self.approvals_gap(&settings, pull).await?, |
| 461 | person_request: self |
| 462 | .person_request(pull, progress.revised_at.as_deref()) |
| 463 | .await?, |
| 464 | queued: self.queued_entry(&pull.id).await?, |
| 465 | }))) |
| 466 | } |
| 467 | |
| 468 | /// The latest request for changes by a person other than the author, |
| 469 | /// if it is that person's latest verdict and came after the last |
| 470 | /// revision. |
| 471 | async fn person_request( |
| 472 | &self, |
| 473 | pull: &Pull, |
| 474 | revised_at: Option<&str>, |
| 475 | ) -> Result<Option<PersonRequest>> { |
| 476 | #[derive(Deserialize)] |
| 477 | struct Verdicts { |
| 478 | author_id: String, |
| 479 | author_name: String, |
| 480 | verdict: Verdict, |
| 481 | created_at: String, |
| 482 | } |
| 483 | let rows = self |
| 484 | .db |
| 485 | .prepare( |
| 486 | "SELECT author_id, author_name, verdict, created_at FROM comments |
| 487 | WHERE repo_id = ? AND number = ? AND verdict IS NOT NULL |
| 488 | AND author_id != ? AND author_id != ? |
| 489 | ORDER BY id", |
| 490 | ) |
| 491 | .bind(&[ |
| 492 | pull.repo_id.as_str().into(), |
| 493 | pull.number.into(), |
| 494 | pull.author.id.as_str().into(), |
| 495 | AGENT_ID.into(), |
| 496 | ])? |
| 497 | .all() |
| 498 | .await? |
| 499 | .results::<Verdicts>()?; |
| 500 | // Each person's latest verdict is the one that stands. |
| 501 | let mut latest: HashMap<String, Verdicts> = HashMap::new(); |
| 502 | for row in rows { |
| 503 | latest.insert(row.author_id.clone(), row); |
| 504 | } |
| 505 | Ok(latest |
| 506 | .into_values() |
| 507 | .filter(|row| row.verdict == Verdict::RequestChanges) |
| 508 | .filter(|row| revised_at.is_none_or(|revised| row.created_at.as_str() > revised)) |
| 509 | .max_by(|a, b| a.created_at.cmp(&b.created_at)) |
| 510 | .map(|row| PersonRequest { |
| 511 | author_id: row.author_id, |
| 512 | author_name: row.author_name, |
| 513 | created_at: row.created_at, |
| 514 | })) |
| 515 | } |
| 516 | |
| 517 | /// Marks a pull request a g1t agent has just opened as one g1t sees |
| 518 | /// through. |
| 519 | pub(crate) async fn manage(&self, pull: &Pull) -> Result<()> { |
| 520 | if !made_by_g1t(pull) { |
| 521 | return Ok(()); |
| 522 | } |
| 523 | self.db |
| 524 | .prepare("UPDATE pulls SET managed = 1 WHERE id = ?") |
| 525 | .bind(&[pull.id.as_str().into()])? |
| 526 | .run() |
| 527 | .await?; |
| 528 | Ok(()) |
| 529 | } |
| 530 | |
| 531 | /// Takes a step for a pull request, if nobody else has. One statement, |
| 532 | /// so that two callers cannot both take it. |
| 533 | async fn claim(&self, pull_id: &str, step: &str, minutes: u64, revising: bool) -> Result<bool> { |
| 534 | let now = now_ms(); |
| 535 | let revision = if revising { |
| 536 | ", revisions = revisions + 1, revised_at = ?1" |
| 537 | } else { |
| 538 | "" |
| 539 | }; |
| 540 | Ok(self |
| 541 | .db |
| 542 | .prepare(format!( |
| 543 | "UPDATE pulls SET working_on = ?2, working_until = ?3{revision} |
| 544 | WHERE id = ?4 AND status = 'open' AND stalled IS NULL |
| 545 | AND (working_until IS NULL OR working_until < ?1) |
| 546 | RETURNING id AS value" |
| 547 | )) |
| 548 | .bind(&[ |
| 549 | rfc3339(now).into(), |
| 550 | step.into(), |
| 551 | rfc3339(now + minutes * 60 * 1000).into(), |
| 552 | pull_id.into(), |
| 553 | ])? |
| 554 | .first::<ValueRow>(None) |
| 555 | .await? |
| 556 | .is_some()) |
| 557 | } |
| 558 | |
| 559 | /// What the author is told when sent back: the checks that failed and |
| 560 | /// what they printed, or the review and its comments on lines. |
| 561 | async fn feedback(&self, pull: &Pull, feedback: &Feedback) -> Result<String> { |
| 562 | match feedback { |
| 563 | Feedback::FailedChecks => { |
| 564 | let failed: Vec<String> = self |
| 565 | .latest_checks(&pull.id) |
| 566 | .await? |
| 567 | .map(|run| run.results) |
| 568 | .unwrap_or_default() |
| 569 | .into_iter() |
| 570 | .filter(|result| !result.passed) |
| 571 | .map(|result| { |
| 572 | let length = result.output.chars().count(); |
| 573 | let output: String = result |
| 574 | .output |
| 575 | .chars() |
| 576 | .skip(length.saturating_sub(MAX_CHECK_OUTPUT_CHARS)) |
| 577 | .collect(); |
| 578 | let exit = result |
| 579 | .exit_code |
| 580 | .map_or("it was stopped for taking too long".to_owned(), |code| { |
| 581 | format!("exit code {code}") |
| 582 | }); |
| 583 | format!("`{}` failed ({exit}):\n\n{}", result.command, output.trim()) |
| 584 | }) |
| 585 | .collect(); |
| 586 | Ok(format!( |
| 587 | "These acceptance checks were run against your change in a clean sandbox and failed.\n\n{}", |
| 588 | failed.join("\n\n") |
| 589 | )) |
| 590 | } |
| 591 | Feedback::Review(finished_at) => { |
| 592 | // Everything a review says is recorded at the moment it finished. |
| 593 | let notes = self |
| 594 | .db |
| 595 | .prepare( |
| 596 | "SELECT body, path, line FROM comments |
| 597 | WHERE repo_id = ? AND number = ? AND author_id = ? AND created_at = ? |
| 598 | ORDER BY id", |
| 599 | ) |
| 600 | .bind(&[ |
| 601 | pull.repo_id.as_str().into(), |
| 602 | pull.number.into(), |
| 603 | AGENT_ID.into(), |
| 604 | finished_at.as_str().into(), |
| 605 | ])? |
| 606 | .all() |
| 607 | .await? |
| 608 | .results::<ReviewNote>()?; |
| 609 | let mut on_lines = Vec::new(); |
| 610 | let mut summary = String::new(); |
| 611 | for note in notes { |
| 612 | match (note.path, note.line) { |
| 613 | (Some(path), Some(line)) => { |
| 614 | on_lines.push(format!("- `{path}` line {line}: {}", note.body)); |
| 615 | } |
| 616 | (Some(path), None) => on_lines.push(format!("- `{path}`: {}", note.body)), |
| 617 | (None, _) => summary = note.body, |
| 618 | } |
| 619 | } |
| 620 | let mut text = format!( |
| 621 | "Another agent reviewed your change and asked for changes.\n\n{summary}" |
| 622 | ); |
| 623 | if !on_lines.is_empty() { |
| 624 | text.push_str("\n\nIts comments on lines:\n"); |
| 625 | text.push_str(&on_lines.join("\n")); |
| 626 | } |
| 627 | Ok(text) |
| 628 | } |
| 629 | Feedback::Person(request) => { |
| 630 | // What they wrote since the agent last revised, which their |
| 631 | // request for changes closes. |
| 632 | let revised: Option<String> = self |
| 633 | .db |
| 634 | .prepare("SELECT revised_at AS value FROM pulls WHERE id = ?") |
| 635 | .bind(&[pull.id.as_str().into()])? |
| 636 | .first::<Option<String>>(Some("value")) |
| 637 | .await? |
| 638 | .flatten(); |
| 639 | let notes = self |
| 640 | .db |
| 641 | .prepare( |
| 642 | "SELECT body, path, line FROM comments |
| 643 | WHERE repo_id = ? AND number = ? AND author_id = ? |
| 644 | AND created_at > ? AND created_at <= ? |
| 645 | ORDER BY id", |
| 646 | ) |
| 647 | .bind(&[ |
| 648 | pull.repo_id.as_str().into(), |
| 649 | pull.number.into(), |
| 650 | request.author_id.as_str().into(), |
| 651 | revised.unwrap_or_default().into(), |
| 652 | request.created_at.as_str().into(), |
| 653 | ])? |
| 654 | .all() |
| 655 | .await? |
| 656 | .results::<ReviewNote>()?; |
| 657 | let mut on_lines = Vec::new(); |
| 658 | let mut said = Vec::new(); |
| 659 | for note in notes { |
| 660 | match (note.path, note.line) { |
| 661 | (Some(path), Some(line)) => { |
| 662 | on_lines.push(format!("- `{path}` line {line}: {}", note.body)); |
| 663 | } |
| 664 | (Some(path), None) => on_lines.push(format!("- `{path}`: {}", note.body)), |
| 665 | (None, _) => said.push(note.body), |
| 666 | } |
| 667 | } |
| 668 | let mut text = format!( |
| 669 | "{} reviewed your change and asked for changes.\n\n{}", |
| 670 | request.author_name, |
| 671 | said.join("\n\n") |
| 672 | ); |
| 673 | if !on_lines.is_empty() { |
| 674 | text.push_str("\n\nTheir comments on lines:\n"); |
| 675 | text.push_str(&on_lines.join("\n")); |
| 676 | } |
| 677 | Ok(text) |
| 678 | } |
| 679 | } |
| 680 | } |
| 681 | |
| 682 | pub(crate) async fn advance(&self, a: AdvanceArgs) -> Result<Advance> { |
| 683 | let Some(pull) = self.pull_by_id(&a.pull_id).await? else { |
| 684 | return Ok(Advance::None); |
| 685 | }; |
| 686 | if pull.status != PullStatus::Open { |
| 687 | return Ok(Advance::None); |
| 688 | } |
| 689 | // Its author can read both the repository and the fork. |
| 690 | let viewer: Viewer = Some(pull.author.clone()); |
| 691 | let repo: Outcome<Repo> = g1t_kit::call( |
| 692 | &self.repos, |
| 693 | "get_by_id", |
| 694 | &GetByIdArgs { |
| 695 | id: pull.repo_id.clone(), |
| 696 | viewer, |
| 697 | }, |
| 698 | ) |
| 699 | .await?; |
| 700 | let (Outcome::Ok(repo), Some(source)) = (repo, pull.fork.clone()) else { |
| 701 | return Ok(Advance::None); |
| 702 | }; |
| 703 | let issue = match pull.issue { |
| 704 | Some(number) => self.issue(&pull.repo_id, number).await?, |
| 705 | None => None, |
| 706 | }; |
| 707 | let behind = self.is_behind(&repo.id, &pull).await?; |
| 708 | let Some((lifecycle, next)) = self.assess(&pull, &issue, behind).await? else { |
| 709 | return Ok(Advance::None); |
| 710 | }; |
| 711 | |
| 712 | if matches!(next, Next::Merge) { |
| 713 | self.merge_by_policy(&repo, &pull).await?; |
| 714 | return Ok(Advance::None); |
| 715 | } |
| 716 | let (step, minutes) = match &next { |
| 717 | Next::Wait | Next::Merge => return Ok(Advance::None), |
| 718 | Next::Review => ("review", REVIEW_MINUTES), |
| 719 | Next::Revise(_) => ("revision", REVISION_MINUTES), |
| 720 | Next::CatchUp => ("catch_up", CATCH_UP_MINUTES), |
| 721 | }; |
| 722 | let feedback = match &next { |
| 723 | Next::Revise(feedback) => self.feedback(&pull, feedback).await?, |
| 724 | _ => String::new(), |
| 725 | }; |
| 726 | if !self |
| 727 | .claim(&pull.id, step, minutes, matches!(next, Next::Revise(_))) |
| 728 | .await? |
| 729 | { |
| 730 | return Ok(Advance::None); |
| 731 | } |
| 732 | // Said in the conversation, so nobody has to wonder why a review or |
| 733 | // a new commit appeared. |
| 734 | let told = match &next { |
| 735 | Next::Review => { |
| 736 | self.db |
| 737 | .prepare( |
| 738 | "UPDATE pulls SET reviewers = json_insert(reviewers, '$[#]', ?1) |
| 739 | WHERE id = ?2 AND NOT EXISTS ( |
| 740 | SELECT 1 FROM json_each(pulls.reviewers) WHERE json_each.value = ?1)", |
| 741 | ) |
| 742 | .bind(&[AGENT_NAME.into(), pull.id.as_str().into()])? |
| 743 | .run() |
| 744 | .await?; |
| 745 | "requested a review from g1t-agent".to_owned() |
| 746 | } |
| 747 | Next::Revise(Feedback::FailedChecks) => { |
| 748 | "sent g1t-agent back to fix the failed checks".to_owned() |
| 749 | } |
| 750 | Next::Revise(Feedback::Review(_)) => { |
| 751 | "sent g1t-agent back to address the review".to_owned() |
| 752 | } |
| 753 | _ => format!( |
| 754 | "asked g1t-agent to bring this up to date with {}", |
| 755 | repo.default_branch |
| 756 | ), |
| 757 | }; |
| 758 | self.note( |
| 759 | &pull.repo_id, |
| 760 | pull.number, |
| 761 | (POLICY_ACTOR_ID, POLICY_ACTOR_NAME), |
| 762 | &told, |
| 763 | ) |
| 764 | .await?; |
| 765 | let job = LifecycleJob { |
| 766 | pull_id: pull.id, |
| 767 | repo: RepoPath { |
| 768 | namespace: repo.namespace, |
| 769 | name: repo.name, |
| 770 | }, |
| 771 | number: pull.number, |
| 772 | author: pull.author, |
| 773 | source, |
| 774 | branch: None, |
| 775 | default_branch: repo.default_branch, |
| 776 | title: pull.title, |
| 777 | description: pull.body.unwrap_or_default(), |
| 778 | issue, |
| 779 | feedback, |
| 780 | round: lifecycle.revisions + 1, |
| 781 | }; |
| 782 | Ok(match next { |
| 783 | Next::Review => Advance::Review { job }, |
| 784 | Next::Revise(_) => Advance::Revise { job }, |
| 785 | Next::CatchUp => Advance::CatchUp { job }, |
| 786 | Next::Wait | Next::Merge => Advance::None, |
| 787 | }) |
| 788 | } |
| 789 | |
| 790 | /// Lands a pull request that is ready, on the authority of the |
| 791 | /// repository's settings instead of a person's click. |
| 792 | async fn merge_by_policy(&self, repo: &Repo, pull: &Pull) -> Result<()> { |
| 793 | if !self.claim(&pull.id, "merge", MERGE_MINUTES, false).await? { |
| 794 | return Ok(()); |
| 795 | } |
| 796 | // g1t acts for the workspace whose members turned this on. |
| 797 | let actor = User { |
| 798 | id: POLICY_ACTOR_ID.to_owned(), |
| 799 | username: POLICY_ACTOR_NAME.to_owned(), |
| 800 | verified: true, |
| 801 | workspaces: vec![Membership { |
| 802 | slug: repo.namespace.clone(), |
| 803 | role: Role::Member, |
| 804 | }], |
| 805 | ..User::default() |
| 806 | }; |
| 807 | let merged = self |
| 808 | .merge_pull(PullActionArgs { |
| 809 | actor, |
| 810 | repo: RepoPath { |
| 811 | namespace: repo.namespace.clone(), |
| 812 | name: repo.name.clone(), |
| 813 | }, |
| 814 | number: pull.number, |
| 815 | summary: String::new(), |
| 816 | keep_issue_open: false, |
| 817 | ignore_checks: false, |
| 818 | }) |
| 819 | .await?; |
| 820 | match merged { |
| 821 | Outcome::Ok(_) => Ok(()), |
| 822 | // Most likely the branch moved in the moment between: let go, and |
| 823 | // the next look at it will catch up and try again. |
| 824 | Outcome::Fail(failure) if failure.code == FailureCode::Conflict => { |
| 825 | self.db |
| 826 | .prepare( |
| 827 | "UPDATE pulls SET working_on = NULL, working_until = NULL |
| 828 | WHERE id = ? AND working_on = 'merge'", |
| 829 | ) |
| 830 | .bind(&[pull.id.as_str().into()])? |
| 831 | .run() |
| 832 | .await?; |
| 833 | Ok(()) |
| 834 | } |
| 835 | Outcome::Fail(failure) => { |
| 836 | self.stall(StallArgs { |
| 837 | pull_id: pull.id.clone(), |
| 838 | reason: format!("g1t could not merge this: {}", failure.message), |
| 839 | }) |
| 840 | .await?; |
| 841 | Ok(()) |
| 842 | } |
| 843 | } |
| 844 | } |
| 845 | |
| 846 | /// Records that a merge was asked for while the pull request was |
| 847 | /// behind, and announces it so that the runner brings it up to date. |
| 848 | pub(crate) async fn request_landing( |
| 849 | &self, |
| 850 | pull: &Pull, |
| 851 | actor: &User, |
| 852 | keep_issue_open: bool, |
| 853 | ) -> Result<()> { |
| 854 | let now = now_ms(); |
| 855 | let request = serde_json::to_string(&LandRequest { |
| 856 | actor: actor.clone(), |
| 857 | keep_issue_open, |
| 858 | })?; |
| 859 | self.db |
| 860 | .prepare( |
| 861 | "UPDATE pulls |
| 862 | SET land_requested = ?, land_requested_at = ?, stalled = NULL, |
| 863 | working_on = 'catch_up', working_until = ? |
| 864 | WHERE id = ?", |
| 865 | ) |
| 866 | .bind(&[ |
| 867 | request.into(), |
| 868 | rfc3339(now).into(), |
| 869 | rfc3339(now + CATCH_UP_MINUTES * 60 * 1000).into(), |
| 870 | pull.id.as_str().into(), |
| 871 | ])? |
| 872 | .run() |
| 873 | .await?; |
| 874 | self.publish( |
| 875 | "pull.merge_requested", |
| 876 | &pull.repo_id, |
| 877 | actor, |
| 878 | PullEvent { |
| 879 | pull_id: pull.id.clone(), |
| 880 | repo_id: pull.repo_id.clone(), |
| 881 | number: pull.number, |
| 882 | issue: pull.issue, |
| 883 | ..PullEvent::default() |
| 884 | }, |
| 885 | ) |
| 886 | .await |
| 887 | } |
| 888 | |
| 889 | /// The merge waiting on a pull request, if one was asked for recently |
| 890 | /// enough to still stand. |
| 891 | async fn land_request(&self, pull_id: &str) -> Result<Option<LandRequest>> { |
| 892 | let row = self |
| 893 | .db |
| 894 | .prepare("SELECT land_requested, land_requested_at, stalled FROM pulls WHERE id = ?") |
| 895 | .bind(&[pull_id.into()])? |
| 896 | .first::<LandRow>(None) |
| 897 | .await?; |
| 898 | let oldest = rfc3339(now_ms().saturating_sub(CATCH_UP_MINUTES * 60 * 1000)); |
| 899 | Ok(row |
| 900 | .filter(|row| { |
| 901 | row.land_requested_at |
| 902 | .as_deref() |
| 903 | .is_some_and(|at| at >= oldest.as_str()) |
| 904 | }) |
| 905 | .and_then(|row| row.land_requested) |
| 906 | .and_then(|request| serde_json::from_str(&request).ok())) |
| 907 | } |
| 908 | |
| 909 | /// Whether a merge is waiting on a pull request, and why g1t stopped |
| 910 | /// working on it if it did. |
| 911 | pub(crate) async fn landing_state(&self, pull_id: &str) -> Result<(bool, Option<String>)> { |
| 912 | let stalled = self |
| 913 | .db |
| 914 | .prepare("SELECT land_requested, land_requested_at, stalled FROM pulls WHERE id = ?") |
| 915 | .bind(&[pull_id.into()])? |
| 916 | .first::<LandRow>(None) |
| 917 | .await? |
| 918 | .and_then(|row| row.stalled); |
| 919 | Ok((self.land_request(pull_id).await?.is_some(), stalled)) |
| 920 | } |
| 921 | |
| 922 | async fn forget_landing(&self, pull_id: &str) -> Result<()> { |
| 923 | self.db |
| 924 | .prepare( |
| 925 | "UPDATE pulls SET land_requested = NULL, land_requested_at = NULL WHERE id = ?", |
| 926 | ) |
| 927 | .bind(&[pull_id.into()])? |
| 928 | .run() |
| 929 | .await?; |
| 930 | Ok(()) |
| 931 | } |
| 932 | |
| 933 | /// Lands a pull request whose head has just moved, if a merge of it was |
| 934 | /// waiting for exactly that. What it was caught up to was already |
| 935 | /// checked and reviewed apart from the merge, so the checks are not |
| 936 | /// waited for again; a repository that wants them rerun turns on |
| 937 | /// "require up to date", and then nothing is landed this way. |
| 938 | pub(crate) async fn land_if_requested(&self, pull_id: &str) -> Result<()> { |
| 939 | let Some(request) = self.land_request(pull_id).await? else { |
| 940 | return Ok(()); |
| 941 | }; |
| 942 | self.forget_landing(pull_id).await?; |
| 943 | let Some(pull) = self.pull_by_id(pull_id).await? else { |
| 944 | return Ok(()); |
| 945 | }; |
| 946 | let repo: Outcome<Repo> = g1t_kit::call( |
| 947 | &self.repos, |
| 948 | "get_by_id", |
| 949 | &GetByIdArgs { |
| 950 | id: pull.repo_id.clone(), |
| 951 | viewer: Some(request.actor.clone()), |
| 952 | }, |
| 953 | ) |
| 954 | .await?; |
| 955 | let Outcome::Ok(repo) = repo else { |
| 956 | return Ok(()); |
| 957 | }; |
| 958 | let merged = self |
| 959 | .merge_pull(PullActionArgs { |
| 960 | actor: request.actor, |
| 961 | repo: RepoPath { |
| 962 | namespace: repo.namespace, |
| 963 | name: repo.name, |
| 964 | }, |
| 965 | number: pull.number, |
| 966 | summary: String::new(), |
| 967 | keep_issue_open: request.keep_issue_open, |
| 968 | ignore_checks: true, |
| 969 | }) |
| 970 | .await?; |
| 971 | if let Outcome::Fail(failure) = merged { |
| 972 | self.stall(StallArgs { |
| 973 | pull_id: pull.id, |
| 974 | reason: format!( |
| 975 | "It was brought up to date but could not be merged: {}", |
| 976 | failure.message |
| 977 | ), |
| 978 | }) |
| 979 | .await?; |
| 980 | } |
| 981 | Ok(()) |
| 982 | } |
| 983 | |
| 984 | /// What the runner needs to bring a pull request up to date for a merge |
| 985 | /// that is waiting on it. |
| 986 | pub(crate) async fn catch_up_job(&self, a: CatchUpJobArgs) -> Result<Option<LifecycleJob>> { |
| 987 | if self.land_request(&a.pull_id).await?.is_none() { |
| 988 | return Ok(None); |
| 989 | } |
| 990 | let Some(pull) = self.pull_by_id(&a.pull_id).await? else { |
| 991 | return Ok(None); |
| 992 | }; |
| 993 | // Its author can read both the repository and the pull request's source. |
| 994 | let repo: Outcome<Repo> = g1t_kit::call( |
| 995 | &self.repos, |
| 996 | "get_by_id", |
| 997 | &GetByIdArgs { |
| 998 | id: pull.repo_id.clone(), |
| 999 | viewer: Some(pull.author.clone()), |
| 1000 | }, |
| 1001 | ) |
| 1002 | .await?; |
| 1003 | let Outcome::Ok(repo) = repo else { |
| 1004 | return Ok(None); |
| 1005 | }; |
| 1006 | let path = RepoPath { |
| 1007 | namespace: repo.namespace, |
| 1008 | name: repo.name, |
| 1009 | }; |
| 1010 | let issue = match pull.issue { |
| 1011 | Some(number) => self.issue(&pull.repo_id, number).await?, |
| 1012 | None => None, |
| 1013 | }; |
| 1014 | Ok(Some(LifecycleJob { |
| 1015 | pull_id: pull.id, |
| 1016 | source: pull.fork.unwrap_or_else(|| path.clone()), |
| 1017 | repo: path, |
| 1018 | number: pull.number, |
| 1019 | author: pull.author, |
| 1020 | branch: pull.branch, |
| 1021 | default_branch: repo.default_branch, |
| 1022 | title: pull.title, |
| 1023 | description: pull.body.unwrap_or_default(), |
| 1024 | issue, |
| 1025 | feedback: String::new(), |
| 1026 | round: 0, |
| 1027 | })) |
| 1028 | } |
| 1029 | |
| 1030 | pub(crate) async fn stall(&self, a: StallArgs) -> Result<bool> { |
| 1031 | self.db |
| 1032 | .prepare( |
| 1033 | "UPDATE pulls |
| 1034 | SET stalled = ?, working_on = NULL, working_until = NULL, |
| 1035 | land_requested = NULL, land_requested_at = NULL |
| 1036 | WHERE id = ? AND status = 'open'", |
| 1037 | ) |
| 1038 | .bind(&[a.reason.trim().into(), a.pull_id.as_str().into()])? |
| 1039 | .run() |
| 1040 | .await?; |
| 1041 | self.db |
| 1042 | .prepare("UPDATE pulls SET stage = 'needs_you', stage_detail = ? WHERE id = ?") |
| 1043 | .bind(&[a.reason.trim().into(), a.pull_id.into()])? |
| 1044 | .run() |
| 1045 | .await?; |
| 1046 | Ok(true) |
| 1047 | } |
| 1048 | |
| 1049 | pub(crate) async fn managed_pulls(&self, a: ManagedPullsArgs) -> Result<Vec<String>> { |
| 1050 | let rows = self |
| 1051 | .db |
| 1052 | .prepare( |
| 1053 | "SELECT id AS value FROM pulls |
| 1054 | WHERE status = 'open' AND managed = 1 AND stalled IS NULL |
| 1055 | AND (?1 IS NULL OR repo_id = ?1) |
| 1056 | ORDER BY updated_at DESC LIMIT ?2", |
| 1057 | ) |
| 1058 | .bind(&[ |
| 1059 | a.repo_id.map_or(JsValue::NULL, JsValue::from), |
| 1060 | MANAGED_PAGE.into(), |
| 1061 | ])? |
| 1062 | .all() |
| 1063 | .await? |
| 1064 | .results::<ValueRow>()?; |
| 1065 | Ok(rows.into_iter().map(|row| row.value).collect()) |
| 1066 | } |
| 1067 | } |
| 1068 | |
| 1069 | #[cfg(test)] |
| 1070 | mod tests { |
| 1071 | use super::*; |
| 1072 | |
| 1073 | const MAX_REVISIONS: u32 = 2; |
| 1074 | |
| 1075 | #[test] |
| 1076 | fn approvals_the_repository_wants_are_waited_for() { |
| 1077 | let short = || Facts { |
| 1078 | review: reviewed(Some(Verdict::Approve)), |
| 1079 | approvals_missing: Some("This repository requires 1 approving review.".to_owned()), |
| 1080 | ..facts() |
| 1081 | }; |
| 1082 | let (lifecycle, next) = decide(short()); |
| 1083 | assert_eq!(lifecycle.stage, Stage::NeedsYou); |
| 1084 | assert_eq!( |
| 1085 | lifecycle.detail, |
| 1086 | "This repository requires 1 approving review." |
| 1087 | ); |
| 1088 | assert!(matches!(next, Next::Wait)); |
| 1089 | // Not even a repository that merges by itself merges without them. |
| 1090 | let automatic = Facts { |
| 1091 | auto_merge: true, |
| 1092 | ..short() |
| 1093 | }; |
| 1094 | assert_eq!(outcome(automatic), (Stage::NeedsYou, "wait")); |
| 1095 | } |
| 1096 | |
| 1097 | #[test] |
| 1098 | fn a_repository_can_leave_review_to_people() { |
| 1099 | let unreviewed = Facts { |
| 1100 | agent_review: false, |
| 1101 | ..facts() |
| 1102 | }; |
| 1103 | assert_eq!(outcome(unreviewed), (Stage::Ready, "wait")); |
| 1104 | let failing = Facts { |
| 1105 | agent_review: false, |
| 1106 | check_status: Some(CheckStatus::Failed), |
| 1107 | ..facts() |
| 1108 | }; |
| 1109 | assert_eq!(outcome(failing), (Stage::Revising, "revise for checks")); |
| 1110 | } |
| 1111 | |
| 1112 | #[test] |
| 1113 | fn a_repository_sets_how_often_the_author_is_sent_back() { |
| 1114 | let never = Facts { |
| 1115 | max_revisions: 0, |
| 1116 | check_status: Some(CheckStatus::Failed), |
| 1117 | ..facts() |
| 1118 | }; |
| 1119 | assert_eq!(outcome(never), (Stage::NeedsYou, "wait")); |
| 1120 | } |
| 1121 | |
| 1122 | /// A pull request that is ready for review, with checks that passed |
| 1123 | /// and nothing else yet. |
| 1124 | fn facts() -> Facts { |
| 1125 | Facts { |
| 1126 | draft: false, |
| 1127 | stalled: None, |
| 1128 | working_on: None, |
| 1129 | check_status: Some(CheckStatus::Passed), |
| 1130 | review_pending: false, |
| 1131 | has_checks: true, |
| 1132 | revisions: 0, |
| 1133 | review: None, |
| 1134 | behind: false, |
| 1135 | auto_merge: false, |
| 1136 | require_up_to_date: false, |
| 1137 | agent_review: true, |
| 1138 | max_revisions: MAX_REVISIONS, |
| 1139 | approvals_missing: None, |
| 1140 | person_request: None, |
| 1141 | queued: None, |
| 1142 | } |
| 1143 | } |
| 1144 | |
| 1145 | #[test] |
| 1146 | fn a_queued_pull_request_waits_in_the_queue() { |
| 1147 | let queued = Facts { |
| 1148 | review: reviewed(Some(Verdict::Approve)), |
| 1149 | queued: Some((QueueState::Testing, vec![12, 14])), |
| 1150 | auto_merge: true, |
| 1151 | ..facts() |
| 1152 | }; |
| 1153 | let (lifecycle, next) = decide(queued); |
| 1154 | assert_eq!(lifecycle.stage, Stage::Queued); |
| 1155 | assert!(lifecycle.detail.contains("#12, #14")); |
| 1156 | assert!(matches!(next, Next::Wait)); |
| 1157 | } |
| 1158 | |
| 1159 | fn asked_by_a_person() -> Option<PersonRequest> { |
| 1160 | Some(PersonRequest { |
| 1161 | author_id: "usr_reviewer".to_owned(), |
| 1162 | author_name: "g1t-reviewer".to_owned(), |
| 1163 | created_at: "2026-10-02T11:00:00.000Z".to_owned(), |
| 1164 | }) |
| 1165 | } |
| 1166 | |
| 1167 | #[test] |
| 1168 | fn a_person_asking_for_changes_sends_the_agent_back() { |
| 1169 | let asked = Facts { |
| 1170 | review: reviewed(Some(Verdict::Approve)), |
| 1171 | approvals_missing: Some("A reviewer has asked for changes.".to_owned()), |
| 1172 | person_request: asked_by_a_person(), |
| 1173 | ..facts() |
| 1174 | }; |
| 1175 | let (lifecycle, _) = decide(Facts { |
| 1176 | person_request: asked_by_a_person(), |
| 1177 | ..facts() |
| 1178 | }); |
| 1179 | assert!(lifecycle.detail.starts_with("g1t-reviewer asked for changes")); |
| 1180 | assert_eq!(outcome(asked), (Stage::Revising, "revise for a person")); |
| 1181 | } |
| 1182 | |
| 1183 | #[test] |
| 1184 | fn a_person_is_asked_once_the_revisions_run_out() { |
| 1185 | let exhausted = Facts { |
| 1186 | person_request: asked_by_a_person(), |
| 1187 | revisions: MAX_REVISIONS, |
| 1188 | ..facts() |
| 1189 | }; |
| 1190 | assert_eq!(outcome(exhausted), (Stage::NeedsYou, "wait")); |
| 1191 | } |
| 1192 | |
| 1193 | fn reviewed(verdict: Option<Verdict>) -> Option<FinishedReview> { |
| 1194 | Some(FinishedReview { |
| 1195 | finished_at: "2026-10-02T10:00:00.000Z".to_owned(), |
| 1196 | verdict, |
| 1197 | }) |
| 1198 | } |
| 1199 | |
| 1200 | /// The stage, and a word for the step to take. |
| 1201 | fn outcome(facts: Facts) -> (Stage, &'static str) { |
| 1202 | let (lifecycle, next) = decide(facts); |
| 1203 | let step = match next { |
| 1204 | Next::Wait => "wait", |
| 1205 | Next::Review => "review", |
| 1206 | Next::Revise(Feedback::FailedChecks) => "revise for checks", |
| 1207 | Next::Revise(Feedback::Review(_)) => "revise for review", |
| 1208 | Next::Revise(Feedback::Person(_)) => "revise for a person", |
| 1209 | Next::CatchUp => "catch up", |
| 1210 | Next::Merge => "merge", |
| 1211 | }; |
| 1212 | (lifecycle.stage, step) |
| 1213 | } |
| 1214 | |
| 1215 | #[test] |
| 1216 | fn nothing_is_started_while_the_agent_is_still_working() { |
| 1217 | let draft = Facts { |
| 1218 | draft: true, |
| 1219 | check_status: None, |
| 1220 | ..facts() |
| 1221 | }; |
| 1222 | assert_eq!(outcome(draft), (Stage::Working, "wait")); |
| 1223 | } |
| 1224 | |
| 1225 | #[test] |
| 1226 | fn checks_come_before_review() { |
| 1227 | let unchecked = Facts { |
| 1228 | check_status: None, |
| 1229 | ..facts() |
| 1230 | }; |
| 1231 | assert_eq!(outcome(unchecked), (Stage::Checking, "wait")); |
| 1232 | let running = Facts { |
| 1233 | check_status: Some(CheckStatus::Running), |
| 1234 | ..facts() |
| 1235 | }; |
| 1236 | assert_eq!(outcome(running), (Stage::Checking, "wait")); |
| 1237 | assert_eq!(outcome(facts()), (Stage::Reviewing, "review")); |
| 1238 | } |
| 1239 | |
| 1240 | #[test] |
| 1241 | fn an_issue_without_checks_goes_straight_to_review() { |
| 1242 | let unchecked = Facts { |
| 1243 | has_checks: false, |
| 1244 | check_status: None, |
| 1245 | ..facts() |
| 1246 | }; |
| 1247 | assert_eq!(outcome(unchecked), (Stage::Reviewing, "review")); |
| 1248 | } |
| 1249 | |
| 1250 | #[test] |
| 1251 | fn failed_checks_send_the_author_back() { |
| 1252 | let failed = Facts { |
| 1253 | check_status: Some(CheckStatus::Failed), |
| 1254 | ..facts() |
| 1255 | }; |
| 1256 | assert_eq!(outcome(failed), (Stage::Revising, "revise for checks")); |
| 1257 | } |
| 1258 | |
| 1259 | #[test] |
| 1260 | fn checks_that_could_not_run_are_a_persons_problem() { |
| 1261 | let errored = Facts { |
| 1262 | check_status: Some(CheckStatus::Errored), |
| 1263 | ..facts() |
| 1264 | }; |
| 1265 | assert_eq!(outcome(errored), (Stage::NeedsYou, "wait")); |
| 1266 | } |
| 1267 | |
| 1268 | #[test] |
| 1269 | fn a_review_asking_for_changes_sends_the_author_back() { |
| 1270 | let changes = Facts { |
| 1271 | review: reviewed(Some(Verdict::RequestChanges)), |
| 1272 | ..facts() |
| 1273 | }; |
| 1274 | assert_eq!(outcome(changes), (Stage::Revising, "revise for review")); |
| 1275 | } |
| 1276 | |
| 1277 | #[test] |
| 1278 | fn the_author_is_sent_back_only_so_many_times() { |
| 1279 | let failing = Facts { |
| 1280 | check_status: Some(CheckStatus::Failed), |
| 1281 | revisions: MAX_REVISIONS, |
| 1282 | ..facts() |
| 1283 | }; |
| 1284 | assert_eq!(outcome(failing), (Stage::NeedsYou, "wait")); |
| 1285 | let unconvinced = Facts { |
| 1286 | review: reviewed(Some(Verdict::RequestChanges)), |
| 1287 | revisions: MAX_REVISIONS, |
| 1288 | ..facts() |
| 1289 | }; |
| 1290 | assert_eq!(outcome(unconvinced), (Stage::NeedsYou, "wait")); |
| 1291 | // One short of the limit still gets another go. |
| 1292 | let once = Facts { |
| 1293 | check_status: Some(CheckStatus::Failed), |
| 1294 | revisions: MAX_REVISIONS - 1, |
| 1295 | ..facts() |
| 1296 | }; |
| 1297 | assert_eq!(outcome(once), (Stage::Revising, "revise for checks")); |
| 1298 | } |
| 1299 | |
| 1300 | #[test] |
| 1301 | fn a_review_that_could_not_be_written_is_not_retried() { |
| 1302 | let broken = Facts { |
| 1303 | review: reviewed(None), |
| 1304 | ..facts() |
| 1305 | }; |
| 1306 | assert_eq!(outcome(broken), (Stage::NeedsYou, "wait")); |
| 1307 | } |
| 1308 | |
| 1309 | #[test] |
| 1310 | fn being_behind_only_holds_a_change_up_where_the_repository_says_so() { |
| 1311 | let behind = || Facts { |
| 1312 | review: reviewed(Some(Verdict::Approve)), |
| 1313 | behind: true, |
| 1314 | ..facts() |
| 1315 | }; |
| 1316 | // By default it is ready as it is; merging brings it up to date. |
| 1317 | assert_eq!(outcome(behind()), (Stage::Ready, "wait")); |
| 1318 | let strict = Facts { |
| 1319 | require_up_to_date: true, |
| 1320 | ..behind() |
| 1321 | }; |
| 1322 | assert_eq!(outcome(strict), (Stage::CatchingUp, "catch up")); |
| 1323 | let current = Facts { |
| 1324 | review: reviewed(Some(Verdict::Approve)), |
| 1325 | ..facts() |
| 1326 | }; |
| 1327 | assert_eq!(outcome(current), (Stage::Ready, "wait")); |
| 1328 | } |
| 1329 | |
| 1330 | #[test] |
| 1331 | fn a_ready_change_lands_by_itself_only_where_the_repository_says_so() { |
| 1332 | let ready = || Facts { |
| 1333 | review: reviewed(Some(Verdict::Approve)), |
| 1334 | ..facts() |
| 1335 | }; |
| 1336 | assert_eq!(outcome(ready()), (Stage::Ready, "wait")); |
| 1337 | let automatic = Facts { |
| 1338 | auto_merge: true, |
| 1339 | ..ready() |
| 1340 | }; |
| 1341 | assert_eq!(outcome(automatic), (Stage::Ready, "merge")); |
| 1342 | // One that is behind is merged too: merging brings it up to date. |
| 1343 | let behind = Facts { |
| 1344 | auto_merge: true, |
| 1345 | behind: true, |
| 1346 | ..ready() |
| 1347 | }; |
| 1348 | assert_eq!(outcome(behind), (Stage::Ready, "merge")); |
| 1349 | // Unless the repository wants it caught up and checked again first. |
| 1350 | let strict = Facts { |
| 1351 | auto_merge: true, |
| 1352 | behind: true, |
| 1353 | require_up_to_date: true, |
| 1354 | ..ready() |
| 1355 | }; |
| 1356 | assert_eq!(outcome(strict), (Stage::CatchingUp, "catch up")); |
| 1357 | // Nothing short of approved is merged, whatever the setting. |
| 1358 | let failing = Facts { |
| 1359 | auto_merge: true, |
| 1360 | check_status: Some(CheckStatus::Failed), |
| 1361 | ..ready() |
| 1362 | }; |
| 1363 | assert_eq!(outcome(failing), (Stage::Revising, "revise for checks")); |
| 1364 | let unreviewed = Facts { |
| 1365 | auto_merge: true, |
| 1366 | ..facts() |
| 1367 | }; |
| 1368 | assert_eq!(outcome(unreviewed), (Stage::Reviewing, "review")); |
| 1369 | } |
| 1370 | |
| 1371 | #[test] |
| 1372 | fn catching_up_reruns_the_checks_but_not_the_review() { |
| 1373 | // The merge moved the head, so the checks are waited for again. |
| 1374 | let merged_in = Facts { |
| 1375 | review: reviewed(Some(Verdict::Approve)), |
| 1376 | check_status: None, |
| 1377 | ..facts() |
| 1378 | }; |
| 1379 | assert_eq!(outcome(merged_in), (Stage::Checking, "wait")); |
| 1380 | } |
| 1381 | |
| 1382 | #[test] |
| 1383 | fn a_step_under_way_is_not_started_again() { |
| 1384 | for (step, stage) in [ |
| 1385 | ("review", Stage::Reviewing), |
| 1386 | ("revision", Stage::Revising), |
| 1387 | ("catch_up", Stage::CatchingUp), |
| 1388 | ] { |
| 1389 | let busy = Facts { |
| 1390 | working_on: Some(step.to_owned()), |
| 1391 | // Whatever else is true, the step in hand comes first. |
| 1392 | check_status: Some(CheckStatus::Failed), |
| 1393 | ..facts() |
| 1394 | }; |
| 1395 | assert_eq!(outcome(busy), (stage, "wait")); |
| 1396 | } |
| 1397 | let asked = Facts { |
| 1398 | review_pending: true, |
| 1399 | ..facts() |
| 1400 | }; |
| 1401 | assert_eq!(outcome(asked), (Stage::Reviewing, "wait")); |
| 1402 | } |
| 1403 | |
| 1404 | #[test] |
| 1405 | fn once_stopped_it_stays_stopped() { |
| 1406 | let (lifecycle, next) = decide(Facts { |
| 1407 | stalled: Some("The agent could not catch up.".to_owned()), |
| 1408 | review: reviewed(Some(Verdict::Approve)), |
| 1409 | behind: true, |
| 1410 | ..facts() |
| 1411 | }); |
| 1412 | assert_eq!(lifecycle.stage, Stage::NeedsYou); |
| 1413 | assert_eq!(lifecycle.detail, "The agent could not catch up."); |
| 1414 | assert!(matches!(next, Next::Wait)); |
| 1415 | } |
| 1416 | } |