{{ message }}
Repository navigation
Expand file tree
/
Copy pathwork-queue-stress-git.cjs
More file actions
374 lines (358 loc) · 16.8 KB
/
Copy pathwork-queue-stress-git.cjs
File metadata and controls
374 lines (358 loc) · 16.8 KB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
"use strict";
const assert = require("node:assert/strict");
const fs = require("node:fs/promises");
const path = require("node:path");
const { spawn } = require("node:child_process");
const { createHash } = require("node:crypto");
const { registerQueueLedgerClient } = require("../../actions/setup/js/work_queue_git_transport.cjs");
const REPOSITORY = "local/queue";
const PRINCIPAL = "1001";
const WORKFLOW = ".github/workflows/worker.lock.yml";
const PUBLISHER_WORKFLOW = ".github/workflows/publisher.lock.yml";
const METHODS = {
repos: ["get", "getContent"],
git: ["getRef", "getCommit", "getTree", "getBlob", "createBlob", "createTree", "createCommit", "createRef", "updateRef"],
actions: ["getWorkflow", "getWorkflowRun", "getWorkflowRunAttempt", "createWorkflowDispatch"],
};
function clientFor(call) {
const client = { rest: Object.fromEntries(Object.entries(METHODS).map(([group, names]) => [group, Object.fromEntries(names.map(name => [name, args => call(`${group}.${name}`, args)]))])) };
// Both parent and worker RPC clients must keep ledger traffic on the local Git fixture.
registerQueueLedgerClient(client, client);
return client;
}
function apiError(status, message) {
return Object.assign(new Error(message), { status });
}
// Object writes and reference changes use Git itself, including its atomic
// expected-old update-ref. No in-memory ref/commit store substitutes for Git.
class LocalGitHub {
constructor(directory, { seed = 1, gitTimeoutMs = 30000 } = {}) {
this.directory = directory;
this.seed = seed;
this.gitTimeoutMs = gitTimeoutMs;
this.abort = new AbortController();
this.sequence = 0;
this.runs = new Map();
this.originalRuns = new Map();
this.launches = new Map();
this.receipts = new Map();
this.faults = new Map();
this.children = new Set();
this.metrics = { git_commands: 0, api_calls: 0, update_attempts: 0, cas_conflicts: 0, lost_success_responses: 0, forced_races: 0, native_posts: 0 };
this.client = clientFor((method, args) => this.call(method, args));
}
async git(args, input = "") {
this.metrics.git_commands++;
return new Promise((resolve, reject) => {
const child = spawn("git", ["--git-dir", this.directory, ...args], {
env: {
PATH: process.env.PATH,
HOME: this.directory,
GIT_CONFIG_NOSYSTEM: "1",
GIT_CONFIG_GLOBAL: path.join(this.directory, "absent-global-config"),
GIT_TERMINAL_PROMPT: "0",
GIT_AUTHOR_NAME: "Local queue simulator",
GIT_AUTHOR_EMAIL: "simulator@localhost",
GIT_COMMITTER_NAME: "Local queue simulator",
GIT_COMMITTER_EMAIL: "simulator@localhost",
GIT_AUTHOR_DATE: `@${1800000000 + this.sequence} +0000`,
GIT_COMMITTER_DATE: `@${1800000000 + this.sequence} +0000`,
},
stdio: ["pipe", "pipe", "pipe"],
signal: this.abort.signal,
});
this.children.add(child);
let bytes = 0;
const out = [];
const err = [];
const timer = setTimeout(() => child.kill("SIGKILL"), this.gitTimeoutMs);
child.stdout.on("data", chunk => {
bytes += chunk.length;
if (bytes > 112 * 1024 * 1024) child.kill("SIGKILL");
else out.push(chunk);
});
child.stderr.on("data", chunk => err.push(chunk));
child.stdin.on("error", () => {});
child.on("error", reject);
child.on("close", code => {
clearTimeout(timer);
this.children.delete(child);
if (code === 0) resolve(Buffer.concat(out));
else reject(Object.assign(new Error(`git ${args[0]} failed (${code}): ${Buffer.concat(err).toString("utf8").trim()}`), { gitCode: code }));
});
child.stdin.end(input);
});
}
async initialize() {
await fs.mkdir(this.directory, { recursive: true });
await this.git(["init", "--bare", "--quiet", "--initial-branch=main", this.directory]);
const workflow =
"name: Local worker\non:\n workflow_dispatch:\n inputs:\n work_queue_assignment:\n type: string\n required: true\njobs:\n worker:\n runs-on: ubuntu-latest\n steps:\n - run: echo local-only\n";
const blob = (await this.git(["hash-object", "-w", "--stdin"], workflow)).toString().trim();
const workflows = (await this.git(["mktree"], `100644 blob ${blob}\tworker.lock.yml\n100644 blob ${blob}\tpublisher.lock.yml\n`)).toString().trim();
const github = (await this.git(["mktree"], `040000 tree ${workflows}\tworkflows\n`)).toString().trim();
const tree = (await this.git(["mktree"], `040000 tree ${github}\t.github\n`)).toString().trim();
this.ref = (await this.git(["commit-tree", tree], "Local immutable workflow revision\n")).toString().trim();
await this.git(["update-ref", "refs/heads/main", this.ref]);
const publisher = this.run("100", PUBLISHER_WORKFLOW, "schedule");
this.runs.set("100", publisher);
this.originalRuns.set("100", structuredClone(publisher));
return this;
}
run(id, workflow, event, assignment) {
return {
id,
run_attempt: 1,
repository: { full_name: REPOSITORY, id: 7 },
workflow_id: workflow === WORKFLOW ? 10 : 11,
path: workflow,
event,
head_sha: this.ref,
actor: { id: PRINCIPAL },
triggering_actor: { id: PRINCIPAL },
display_title: assignment ? `local work-queue ${assignment.dispatch_id}` : "local publisher",
status: "in_progress",
conclusion: null,
created_at: "2026-10-08T00:00:00Z",
...(assignment ? { assignment: structuredClone(assignment) } : {}),
};
}
nativeContext(runId = "100", attempt = 1) {
const run = this.runs.get(String(runId));
assert.ok(run, "unknown simulated native run");
return {
repo: { owner: "local", repo: "queue" },
runId: run.id,
runAttempt: attempt,
actorId: PRINCIPAL,
sha: this.ref,
eventName: run.event,
payload: { repository: { id: 7 } },
};
}
armFaults(branch) {
assert.ok(!this.faults.has(branch));
this.faults.set(branch, { arrivals: [], passed: false, lost: false });
}
async barrier(branch, meta) {
const fault = this.faults.get(branch);
if (!fault || fault.passed) return;
return new Promise((resolve, reject) => {
const entry = { resolve, reject, worker: meta.worker ?? 0 };
entry.timer = setTimeout(() => reject(new Error("forced CAS race deadline exceeded: need two concurrent publishers")), this.gitTimeoutMs);
fault.arrivals.push(entry);
if (fault.arrivals.length === 2) {
fault.passed = true;
this.metrics.forced_races++;
// The seed chooses the first candidate, not a probabilistic timing race.
fault.arrivals.sort((a, b) => ((a.worker + this.seed) % 2) - ((b.worker + this.seed) % 2));
for (const waiting of fault.arrivals) clearTimeout(waiting.timer);
fault.arrivals[0].resolve();
fault.next = fault.arrivals[1];
}
});
}
async reference(ref) {
assert.match(ref, /^refs\/(?:heads\/[A-Za-z0-9/_-]+|tags\/gh-aw\/work-queue\/[a-f0-9]{40,64})$/);
try {
return (await this.git(["show-ref", "--verify", "--hash", ref])).toString().trim();
} catch (error) {
if (error.gitCode === 1 || error.gitCode === 128) throw apiError(404, "reference does not exist");
throw error;
}
}
async entries(tree) {
assert.match(tree, /^[a-f0-9]{40}$/);
const output = (await this.git(["ls-tree", "-z", tree])).toString("utf8");
return output
.split("\0")
.filter(Boolean)
.map(line => {
const [, mode, type, sha, name] = /^(\d+) (\w+) ([a-f0-9]+)\t([\s\S]+)$/.exec(line);
return { mode, type, sha, path: name };
});
}
async call(method, args = {}, meta = {}) {
this.metrics.api_calls++;
if (!method.startsWith("sim.")) assert.equal(`${args.owner}/${args.repo}`, REPOSITORY, "adapter rejects foreign repositories");
const data = value => ({ status: 200, data: value });
switch (method) {
case "repos.get":
return data({ full_name: REPOSITORY, id: 7, default_branch: "main", size: 1, permissions: { pull: true } });
case "repos.getContent": {
assert.equal(args.ref, this.ref, "workflow content must use real immutable revision");
assert.ok([WORKFLOW, PUBLISHER_WORKFLOW].includes(args.path));
const contents = await this.git(["show", `${args.ref}:${args.path}`]);
return data({ type: "file", path: args.path, encoding: "base64", content: contents.toString("base64"), size: contents.length });
}
case "git.getRef": {
const ref = `refs/${args.ref}`;
const sha = await this.reference(ref);
return data({ ref, object: { type: "commit", sha } });
}
case "git.getCommit": {
assert.match(args.commit_sha, /^[a-f0-9]{40}$/);
const text = (await this.git(["cat-file", "-p", args.commit_sha])).toString();
return data({ sha: args.commit_sha, tree: { sha: /^tree ([a-f0-9]+)$/m.exec(text)[1] }, parents: [...text.matchAll(/^parent ([a-f0-9]+)$/gm)].map(match => ({ sha: match[1] })) });
}
case "git.getTree":
return data({ sha: args.tree_sha, truncated: false, tree: await this.entries(args.tree_sha) });
case "git.getBlob": {
assert.match(args.file_sha, /^[a-f0-9]{40}$/);
const contents = await this.git(["cat-file", "blob", args.file_sha]);
return data({ encoding: "base64", content: contents.toString("base64"), size: contents.length });
}
case "git.createBlob": {
assert.ok(["utf-8", "base64"].includes(args.encoding));
const bytes = args.encoding === "base64" ? Buffer.from(args.content, "base64") : Buffer.from(args.content);
return data({ sha: (await this.git(["hash-object", "-w", "--stdin"], bytes)).toString().trim() });
}
case "git.createTree": {
const entries = new Map((args.base_tree ? await this.entries(args.base_tree) : []).map(entry => [entry.path, entry]));
for (const entry of args.tree) {
assert.match(entry.path, /^[A-Za-z0-9_.-]+$/);
assert.equal(entry.mode, "100644");
assert.equal(entry.type, "blob");
assert.match(entry.sha, /^[a-f0-9]{40}$/);
entries.set(entry.path, entry);
}
const input = [...entries.values()].map(entry => `${entry.mode} ${entry.type} ${entry.sha}\t${entry.path}\0`).join("");
return data({ sha: (await this.git(["mktree", "-z"], input)).toString().trim() });
}
case "git.createCommit": {
assert.match(args.tree, /^[a-f0-9]{40}$/);
for (const sha of args.parents) assert.match(sha, /^[a-f0-9]{40}$/);
this.sequence++;
const sha = (await this.git(["commit-tree", args.tree, ...args.parents.flatMap(parent => ["-p", parent])], `${args.message}\n`)).toString().trim();
return data({ sha });
}
case "git.createRef": {
assert.match(args.ref, /^refs\/(?:heads\/[A-Za-z0-9/_-]+|tags\/gh-aw\/work-queue\/[a-f0-9]{40,64})$/);
const branch = args.ref.replace(/^refs\/heads\//, "");
await this.barrier(branch, meta);
const fault = this.faults.get(branch);
let changed = false;
try {
try {
await this.git(["update-ref", args.ref, args.sha, "0".repeat(40)]);
} catch {
this.metrics.cas_conflicts++;
throw apiError(422, "reference already exists");
}
changed = true;
if (fault && !fault.lost) {
fault.lost = true;
this.metrics.lost_success_responses++;
throw apiError(503, "injected lost successful create response");
}
return data({ ref: args.ref, object: { type: "commit", sha: args.sha } });
} finally {
if (changed && fault?.next) {
fault.next.resolve();
delete fault.next;
}
}
}
case "git.updateRef": {
assert.equal(args.force, false, "publisher must not force refs");
assert.match(args.sha, /^[a-f0-9]{40}$/);
const branch = args.ref.replace(/^heads\//, "");
await this.barrier(branch, meta);
this.metrics.update_attempts++;
const fault = this.faults.get(branch);
let changed = false;
try {
const ref = `refs/${args.ref}`;
const previous = await this.reference(ref);
try {
await this.git(["merge-base", "--is-ancestor", previous, args.sha]);
await this.git(["update-ref", ref, args.sha, previous]);
} catch {
this.metrics.cas_conflicts++;
throw apiError(422, "not a fast-forward: reference update failed");
}
changed = true;
if (fault && !fault.lost) {
fault.lost = true;
this.metrics.lost_success_responses++;
throw apiError(503, "injected lost successful update response");
}
return data({ object: { sha: args.sha } });
} finally {
// Keep the second real candidate fenced until Git has advanced, so its
// actual ancestry check (not a fabricated 422) establishes the conflict.
if (changed && fault?.next) {
fault.next.resolve();
delete fault.next;
}
}
}
case "actions.getWorkflow":
assert.ok([WORKFLOW, path.basename(WORKFLOW)].includes(args.workflow_id));
return data({ id: 10, path: WORKFLOW, state: "active" });
case "actions.getWorkflowRun":
case "actions.getWorkflowRunAttempt": {
const attemptRead = method.endsWith("Attempt");
if (attemptRead && args.attempt_number !== 1) throw apiError(404, "only original simulated attempt exists");
const run = (attemptRead ? this.originalRuns : this.runs).get(String(args.run_id));
if (!run) throw apiError(404, "native run not found");
return data(structuredClone(run));
}
case "actions.createWorkflowDispatch": {
assert.match(args.ref, /^refs\/tags\/gh-aw\/work-queue\/[a-f0-9]{40,64}$/);
assert.equal(await this.reference(args.ref), this.ref, "workflow dispatch must resolve to the approved immutable commit");
assert.equal(args.workflow_id, path.basename(WORKFLOW));
assert.equal(args.headers["X-GitHub-Api-Version"], "2026-03-10");
assert.equal(args.request.retries, 0);
const assignment = JSON.parse(args.inputs.work_queue_assignment);
const count = (this.launches.get(assignment.dispatch_id)?.count || 0) + 1;
assert.equal(count, 1, "duplicate native POST for immutable assignment");
const id = String(1000 + this.metrics.native_posts);
const run = this.run(id, WORKFLOW, "workflow_dispatch", assignment);
this.runs.set(id, run);
this.originalRuns.set(id, structuredClone(run));
this.launches.set(assignment.dispatch_id, { count, run_id: id, assignment });
this.metrics.native_posts++;
return data({ workflow_run_id: id, run_url: `https://api.github.com/repos/${REPOSITORY}/actions/runs/${id}`, html_url: `https://github.com/${REPOSITORY}/actions/runs/${id}` });
}
case "sim.nativeContext":
return this.nativeContext(args.run_id);
case "sim.lookupLaunch":
return structuredClone(this.launches.get(args.dispatch_id) || null);
case "sim.receipt": {
const run = this.runs.get(args.run_id);
assert.equal(run.run_attempt, 1);
const member = run.assignment.claims.find(member => member.handle === args.handle);
assert.equal(member?.work_id, args.work_id);
assert.equal(run.assignment.dispatch_id, args.dispatch_id);
const record = { ...args, effect: "none", descriptor: { local_noop: args.work_id } };
const receipt = `local_receipt:${createHash("sha256").update(JSON.stringify(record)).digest("hex")}`;
this.receipts.set(receipt, record);
return { receipt, descriptor: record.descriptor };
}
case "sim.completeRun": {
const run = this.runs.get(args.run_id);
assert.ok(run?.assignment);
for (const member of run.assignment.claims) assert.ok([...this.receipts.values()].some(record => record.run_id === run.id && record.work_id === member.work_id));
run.status = "completed";
run.conclusion = "success";
this.originalRuns.get(args.run_id).status = "completed";
this.originalRuns.get(args.run_id).conclusion = "success";
return { completed: true };
}
default:
throw new Error(`unsupported local API method: ${method}`);
}
}
async close() {
for (const fault of this.faults.values()) {
for (const arrival of fault.arrivals) {
clearTimeout(arrival.timer);
arrival.reject(new Error("local Git adapter closing"));
}
}
this.abort.abort();
await Promise.all([...this.children].map(child => new Promise(resolve => child.once("close", resolve))));
}
}
module.exports = { LocalGitHub, clientFor, REPOSITORY, PRINCIPAL, WORKFLOW, PUBLISHER_WORKFLOW };
You can’t perform that action at this time.