Files
pbakaus_impeccable/tests/live-roots.test.mjs
T
Paul BakausandClaude Code 031e170d3e fix: harden live-server liveness against pid reuse
greptile-apps[bot] repro: a helper that died without removing
server.json leaves a pid the OS can hand to an unrelated process, which
kill(pid, 0) classifies as a running server and routes repo-root helpers
onto the stale app. The liveness check now also requires the pid's
command line to look like a node process (ps-based, platform-guarded),
removing reuse by arbitrary processes; the residual node-reuse case is
covered by the multi-app warning and the --target escape hatch.

This work was produced with AI assistance (Claude Code).

Co-Authored-By: Claude Code <noreply@anthropic.com>
2026-07-27 17:07:25 -07:00

334 lines
14 KiB
JavaScript

import { describe, it, beforeEach, afterEach } from 'node:test';
import assert from 'node:assert/strict';
import { spawnSync } from 'node:child_process';
import { mkdirSync, mkdtempSync, realpathSync, rmSync, writeFileSync } from 'node:fs';
import { join, dirname } from 'node:path';
import { tmpdir } from 'node:os';
import { fileURLToPath } from 'node:url';
import {
discoverAppCandidates,
findGitRoot,
resolveLiveRoots,
resolveRoots,
writeRootsManifest,
} from '../skill/scripts/live/roots.mjs';
const __dirname = dirname(fileURLToPath(import.meta.url));
const ROOTS_MODULE = join(__dirname, '..', 'skill', 'scripts', 'live', 'roots.mjs');
function write(root, rel, content = '') {
const abs = join(root, rel);
mkdirSync(dirname(abs), { recursive: true });
writeFileSync(abs, content);
}
describe('live roots resolution', () => {
let tmp;
beforeEach(() => {
tmp = realpathSync(mkdtempSync(join(tmpdir(), 'impeccable-roots-')));
});
afterEach(() => {
rmSync(tmp, { recursive: true, force: true });
});
function setupPlainNestedApp() {
// The agent-reviews shape: a git repo whose root is a CLI package (no dev
// config, no workspaces) with the served app nested in website/.
mkdirSync(join(tmp, '.git'), { recursive: true });
write(tmp, 'package.json', JSON.stringify({ name: 'cli-package' }));
write(tmp, 'PRODUCT.md', '# product');
write(tmp, 'DESIGN.md', '# design');
write(tmp, 'website/package.json', JSON.stringify({ name: 'website' }));
write(tmp, 'website/svelte.config.js', 'export default {};');
write(tmp, 'website/vite.config.js', 'export default {};');
write(tmp, 'website/src/routes/+page.svelte', '<h1>hi</h1>');
}
it('roots a targeted file at the nested app, context at the git root', () => {
setupPlainNestedApp();
const { manifest } = resolveRoots({
cwd: tmp,
targetPath: join(tmp, 'website/src/routes/+page.svelte'),
});
assert.equal(manifest.appRoot, join(tmp, 'website'));
assert.equal(manifest.repoRoot, tmp);
assert.equal(manifest.contextRoot, tmp);
assert.equal(manifest.productPath, join(tmp, 'PRODUCT.md'));
assert.equal(manifest.designPath, join(tmp, 'DESIGN.md'));
assert.equal(manifest.sessionRoot, join(tmp, 'website', '.impeccable', 'live'));
});
it('auto-picks a single nested app when booted from the repo root without a target', () => {
setupPlainNestedApp();
const { manifest, selection } = resolveRoots({ cwd: tmp });
assert.equal(selection, undefined);
assert.equal(manifest.appRoot, join(tmp, 'website'));
assert.match(manifest.resolvedFrom, /^candidate:/);
});
it('asks for a selection when several nested apps exist', () => {
setupPlainNestedApp();
write(tmp, 'admin/package.json', JSON.stringify({ name: 'admin' }));
write(tmp, 'admin/vite.config.ts', 'export default {};');
const { manifest, selection } = resolveRoots({ cwd: tmp });
assert.equal(manifest, undefined);
assert.equal(selection.candidates.length, 2);
assert.deepEqual(selection.candidates.map((c) => c.name).sort(), ['admin', 'website']);
});
it('resolves context files independently across levels', () => {
setupPlainNestedApp();
rmSync(join(tmp, 'DESIGN.md'));
write(tmp, 'website/DESIGN.md', '# child design');
const { manifest } = resolveRoots({
cwd: tmp,
targetPath: join(tmp, 'website/src/routes/+page.svelte'),
});
assert.equal(manifest.designPath, join(tmp, 'website', 'DESIGN.md'));
assert.equal(manifest.productPath, join(tmp, 'PRODUCT.md'));
});
it('treats a live-configured directory as an app root without a dev config', () => {
mkdirSync(join(tmp, '.git'), { recursive: true });
write(tmp, 'site/.impeccable/live/config.json', '{"files":["index.html"]}');
write(tmp, 'site/index.html', '<html></html>');
const { manifest } = resolveRoots({ cwd: tmp, targetPath: join(tmp, 'site/index.html') });
assert.equal(manifest.appRoot, join(tmp, 'site'));
});
it('stays at cwd when no app markers exist anywhere', () => {
write(tmp, 'notes.txt', 'nothing here');
const { manifest } = resolveRoots({ cwd: tmp });
assert.equal(manifest.appRoot, tmp);
assert.equal(manifest.repoRoot, tmp);
assert.equal(manifest.resolvedFrom, 'fallback');
});
it('does not ascend above cwd without a git boundary', () => {
write(tmp, 'vite.config.js', 'export default {};');
const nested = join(tmp, 'deep', 'inner');
mkdirSync(nested, { recursive: true });
const { manifest } = resolveRoots({ cwd: nested });
// tmp has a dev config but there is no git root, so the walk must not
// climb out of the starting directory.
assert.equal(manifest.appRoot, nested);
});
it('persists a manifest and finds it again from anywhere in the repo', () => {
setupPlainNestedApp();
const { manifest } = resolveRoots({
cwd: tmp,
targetPath: join(tmp, 'website/src/routes/+page.svelte'),
});
writeRootsManifest(manifest);
// From deep inside the app: found by upward walk.
const fromApp = resolveLiveRoots(join(tmp, 'website/src/routes'));
assert.equal(fromApp.source, 'persisted');
assert.equal(fromApp.manifest.appRoot, join(tmp, 'website'));
// From the repo root: found via the pointer.
const fromRepo = resolveLiveRoots(tmp);
assert.equal(fromRepo.source, 'pointer');
assert.equal(fromRepo.manifest.appRoot, join(tmp, 'website'));
});
it('ignores a stale manifest that claims a different appRoot', () => {
setupPlainNestedApp();
write(tmp, 'website/.impeccable/live/roots.json', JSON.stringify({
version: 1,
appRoot: join(tmp, 'elsewhere'),
}));
const res = resolveLiveRoots(join(tmp, 'website'));
assert.equal(res.source, 'fresh');
assert.equal(res.manifest.appRoot, join(tmp, 'website'));
});
it('finds the git root through intermediate directories', () => {
mkdirSync(join(tmp, '.git'), { recursive: true });
const deep = join(tmp, 'a', 'b', 'c');
mkdirSync(deep, { recursive: true });
assert.equal(findGitRoot(deep), tmp);
});
it('discovers app candidates below common monorepo layouts', () => {
mkdirSync(join(tmp, '.git'), { recursive: true });
write(tmp, 'apps/web/next.config.js', 'module.exports = {};');
write(tmp, 'apps/api/package.json', '{"name":"api"}');
write(tmp, 'packages/ui/package.json', '{"name":"ui"}');
const candidates = discoverAppCandidates(tmp);
assert.deepEqual(candidates, [join(tmp, 'apps', 'web')]);
});
it('enterLiveRoot moves a process onto the persisted appRoot', () => {
setupPlainNestedApp();
const { manifest } = resolveRoots({
cwd: tmp,
targetPath: join(tmp, 'website/src/routes/+page.svelte'),
});
writeRootsManifest(manifest);
const res = spawnSync(process.execPath, [
'-e',
`import(${JSON.stringify(ROOTS_MODULE)}).then((m) => { m.enterLiveRoot(); console.log(process.cwd()); });`,
], { cwd: tmp, encoding: 'utf-8' });
assert.equal(res.status, 0, res.stderr);
assert.equal(realpathSync(res.stdout.trim()), join(tmp, 'website'));
});
});
describe('review regressions: walk bounds', () => {
it('does not climb past a target outside the cwd git repo (m5)', () => {
const outer = realpathSync(mkdtempSync(join(tmpdir(), 'impeccable-roots-outer-')));
try {
mkdirSync(join(outer, 'repo', '.git'), { recursive: true });
writeFileSync(join(outer, 'vite.config.js'), 'export default {};');
const loose = join(outer, 'loose', 'inner', 'sub');
mkdirSync(loose, { recursive: true });
const { manifest } = resolveRoots({ cwd: join(outer, 'repo'), targetPath: loose });
// The dev config at `outer` sits above the target's own tree with no
// git boundary; the walk must not adopt it.
assert.notEqual(manifest.appRoot, outer);
assert.equal(manifest.appRoot, loose);
} finally {
rmSync(outer, { recursive: true, force: true });
}
});
});
describe('review regressions: multi-app pointer', () => {
it('prefers the app whose live server is running over the last boot', () => {
const repo = realpathSync(mkdtempSync(join(tmpdir(), 'impeccable-roots-multi-')));
try {
mkdirSync(join(repo, '.git'), { recursive: true });
for (const name of ['siteA', 'siteB']) {
write(repo, `${name}/vite.config.js`, 'export default {};');
write(repo, `${name}/package.json`, `{"name":"${name}"}`);
}
const a = resolveRoots({ cwd: repo, targetPath: join(repo, 'siteA/vite.config.js') }).manifest;
const b = resolveRoots({ cwd: repo, targetPath: join(repo, 'siteB/vite.config.js') }).manifest;
writeRootsManifest(a);
writeRootsManifest(b); // B booted last: a naive pointer now points at B
// A's helper server is the one alive (this test process's pid).
write(repo, 'siteA/.impeccable/live/server.json', JSON.stringify({ pid: process.pid, port: 1, token: 't' }));
write(repo, 'siteB/.impeccable/live/server.json', JSON.stringify({ pid: 999999999, port: 2, token: 't' }));
const resolved = resolveLiveRoots(repo);
assert.equal(resolved.source, 'pointer');
assert.equal(resolved.manifest.appRoot, join(repo, 'siteA'));
} finally {
rmSync(repo, { recursive: true, force: true });
}
});
it('reads a legacy single-value pointer', () => {
const repo = realpathSync(mkdtempSync(join(tmpdir(), 'impeccable-roots-legacy-')));
try {
mkdirSync(join(repo, '.git'), { recursive: true });
write(repo, 'app/vite.config.js', 'export default {};');
const m = resolveRoots({ cwd: repo, targetPath: join(repo, 'app/vite.config.js') }).manifest;
// Write the manifest, then downgrade the pointer to the v1 shape.
writeRootsManifest(m);
write(repo, '.impeccable/live/app-root.json', JSON.stringify({ appRoot: join(repo, 'app') }));
const resolved = resolveLiveRoots(repo);
assert.equal(resolved.manifest.appRoot, join(repo, 'app'));
} finally {
rmSync(repo, { recursive: true, force: true });
}
});
});
describe('review regressions: stopped-session recovery', () => {
it('prefers the app with an active durable session when no server is alive', () => {
const repo = realpathSync(mkdtempSync(join(tmpdir(), 'impeccable-roots-stopped-')));
try {
mkdirSync(join(repo, '.git'), { recursive: true });
for (const name of ['siteA', 'siteB']) {
write(repo, `${name}/vite.config.js`, 'export default {};');
}
const a = resolveRoots({ cwd: repo, targetPath: join(repo, 'siteA/vite.config.js') }).manifest;
const b = resolveRoots({ cwd: repo, targetPath: join(repo, 'siteB/vite.config.js') }).manifest;
writeRootsManifest(a);
writeRootsManifest(b); // B booted last; both servers are stopped.
// A holds the interrupted session the user wants to recover.
write(repo, 'siteA/.impeccable/live/sessions/ab12cd34.snapshot.json',
JSON.stringify({ id: 'ab12cd34', phase: 'variants_ready' }));
write(repo, 'siteB/.impeccable/live/sessions/ff00ff00.snapshot.json',
JSON.stringify({ id: 'ff00ff00', phase: 'completed' }));
const resolved = resolveLiveRoots(repo);
assert.equal(resolved.source, 'pointer');
assert.equal(resolved.manifest.appRoot, join(repo, 'siteA'));
} finally {
rmSync(repo, { recursive: true, force: true });
}
});
});
describe('review regressions: helper --target', () => {
it('enterLiveRoot honors --target and strips it from argv', () => {
const repo = realpathSync(mkdtempSync(join(tmpdir(), 'impeccable-roots-target-')));
try {
mkdirSync(join(repo, '.git'), { recursive: true });
for (const name of ['appA', 'appB']) {
write(repo, `${name}/vite.config.js`, 'export default {};');
}
const a = resolveRoots({ cwd: repo, targetPath: join(repo, 'appA/vite.config.js') }).manifest;
const b = resolveRoots({ cwd: repo, targetPath: join(repo, 'appB/vite.config.js') }).manifest;
writeRootsManifest(a);
writeRootsManifest(b);
// Both alive: pointer resolution alone is ambiguous (A? B?); --target
// must decide, and downstream flag parsing must not see the tokens.
write(repo, 'appA/.impeccable/live/server.json', JSON.stringify({ pid: process.pid, port: 1, token: 't' }));
write(repo, 'appB/.impeccable/live/server.json', JSON.stringify({ pid: process.pid, port: 2, token: 't' }));
const res = spawnSync(process.execPath, [
'-e',
`import(${JSON.stringify(ROOTS_MODULE)}).then((m) => {
process.argv.push('--target', ${JSON.stringify(join(repo, 'appB'))});
m.enterLiveRoot();
console.log(JSON.stringify({ cwd: process.cwd(), argvHasTarget: process.argv.includes('--target') }));
});`,
], { cwd: repo, encoding: 'utf-8' });
assert.equal(res.status, 0, res.stderr);
const out = JSON.parse(res.stdout.trim().split('\n').pop());
assert.equal(realpathSync(out.cwd), join(repo, 'appB'));
assert.equal(out.argvHasTarget, false);
} finally {
rmSync(repo, { recursive: true, force: true });
}
});
});
describe('review regressions: pid reuse', () => {
it('does not classify a non-node process reusing the recorded pid as a live server', () => {
const repo = realpathSync(mkdtempSync(join(tmpdir(), 'impeccable-roots-pidreuse-')));
try {
mkdirSync(join(repo, '.git'), { recursive: true });
for (const name of ['appA', 'appB']) {
write(repo, `${name}/vite.config.js`, 'export default {};');
}
const a = resolveRoots({ cwd: repo, targetPath: join(repo, 'appA/vite.config.js') }).manifest;
const b = resolveRoots({ cwd: repo, targetPath: join(repo, 'appB/vite.config.js') }).manifest;
writeRootsManifest(a);
writeRootsManifest(b); // B booted last.
// B's helper died; its pid was reused by a non-node process (launchd /
// init: pid 1 is alive on every unix and is never a node process).
write(repo, 'siteB-unused.txt', '');
write(repo, 'appB/.impeccable/live/server.json', JSON.stringify({ pid: 1, port: 2, token: 't' }));
// A holds the interrupted session the user is recovering.
write(repo, 'appA/.impeccable/live/sessions/aa11bb22.snapshot.json',
JSON.stringify({ id: 'aa11bb22', phase: 'variants_ready' }));
const resolved = resolveLiveRoots(repo);
assert.equal(resolved.manifest.appRoot, join(repo, 'appA'));
} finally {
rmSync(repo, { recursive: true, force: true });
}
});
});