Add the schulcloud CLI, and document the split

The CLI talks only to the Pi's /api surface and holds no Schulcloud
credential — only the same bearer token the Claude connector uses. That
is not layering for its own sake: a Schulcloud session dies after two
hours idle and a CLI process lives for seconds, so a CLI with its own
token would be dead most times you reached for it. Routing through the
Pi means one session, one keepalive, one monthly cookie paste.

sync is a one-way mirror, which follows from the data rather than from
scope-cutting: file records are immutable upstream, so there is no
versioning, no conflict resolution and no merge. State is keyed by file
record id with the path as derived output, so an upstream rename moves
the local file instead of duplicating it — verified against the live
server. Verification is size-only because the download endpoint exposes
no ETag and Schulcloud publishes no hash; size still catches the failure
that happens, a truncated download. Downloads land on a .part neighbour
and are renamed, so an interrupted run leaves no half-file that a later
run mistakes for complete. Deletions are reported but not propagated —
a teacher removing a worksheet is no reason to destroy the student's
copy — with --prune to opt in.

what_changed now clamps to the oldest stored generation instead of
refusing, and says it did: "what's new this week" is a reasonable
question to ask a two-day-old index.

Two build bugs caught by the checks rather than by luck: the smoke
harness constructed the app without services, so the index-backed tools
were never exercised; and the Docker build could not see
scripts/copy-assets.mjs, so the image would have shipped without
migrations and silently degraded to live-only.

67 unit tests (9 needing Postgres), smoke green both ways — 34 checks
with an index, 32 without, because graceful degradation is a supported
mode and not a fallback nobody runs.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
This commit is contained in:
2026-09-12 21:26:33 +02:00
parent c79f1b120d
commit 359c46afad
18 changed files with 1108 additions and 84 deletions

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src/bin/cli.ts Normal file
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#!/usr/bin/env node
import { createWriteStream } from 'node:fs';
import { mkdir } from 'node:fs/promises';
import { basename, dirname, resolve } from 'node:path';
import { Readable } from 'node:stream';
import { pipeline } from 'node:stream/promises';
import { ApiClient, ApiError } from '../cli/client.ts';
import { defaultSyncDir, loadCliConfig, saveCliConfig, configPath } from '../cli/config.ts';
import { formatBytes } from '../core/extract.ts';
import { sync, type SyncEvent } from '../cli/sync.ts';
/**
* `schulcloud` — the command-line front end.
*
* Speaks only to the schulcloud-mcp server, never to Schulcloud: the Pi holds
* the one Schulcloud session and keeps it alive, so this machine stores nothing
* but a bearer token. See docs/CLI.md.
*/
const USAGE = `schulcloud — browse and mirror your Schulcloud files
schulcloud login --server <url> --token <token> [--dir <path>]
schulcloud status
schulcloud ls [--course <id>] [--files] [--long]
schulcloud get <fileId> [--out <path>]
schulcloud sync [--dry-run] [--full] [--prune] [--dir <path>] [--jobs <n>]
schulcloud refresh [--course <id>] [--force]
Options are also read from SCHULCLOUD_SERVER, SCHULCLOUD_TOKEN and
SCHULCLOUD_SYNC_DIR. Config file: ${configPath()}
`;
async function main(argv: string[]): Promise<number> {
const [command, ...rest] = argv;
const flags = parseFlags(rest);
if (!command || command === 'help' || flags.help) {
process.stdout.write(USAGE);
return 0;
}
switch (command) {
case 'login':
return login(flags);
case 'status':
return status();
case 'ls':
return list(flags);
case 'get':
return get(flags);
case 'sync':
return runSync(flags);
case 'refresh':
return refresh(flags);
default:
process.stderr.write(`Unknown command "${command}".\n\n${USAGE}`);
return 2;
}
}
async function login(flags: Flags): Promise<number> {
const server = String(flags.server ?? '');
const token = String(flags.token ?? '');
if (!server || !token) {
process.stderr.write('login needs --server and --token.\n');
return 2;
}
const syncDir = flags.dir ? resolve(String(flags.dir)) : defaultSyncDir();
const config = { server: server.replace(/\/+$/, ''), token, syncDir };
// Verify before saving, so a typo fails now rather than on first real use.
try {
await new ApiClient(config).status();
} catch (error) {
process.stderr.write(`Could not reach the server: ${(error as Error).message}\n`);
return 1;
}
const path = await saveCliConfig(config);
process.stdout.write(`Saved ${path}\n server: ${config.server}\n sync dir: ${config.syncDir}\n`);
return 0;
}
async function status(): Promise<number> {
const api = new ApiClient(await loadCliConfig());
const info = (await api.status()) as {
crawlId?: number; crawledAt?: string; nodes?: number; files?: number;
extracted?: number; mirrored?: number; indexer?: { running?: boolean; scope?: string } | null;
};
if (info.crawlId === undefined) {
process.stdout.write('The server index is empty. Run: schulcloud refresh\n');
return 0;
}
const age = info.crawledAt ? Math.round((Date.now() - new Date(info.crawledAt).getTime()) / 60_000) : undefined;
process.stdout.write(
`generation ${info.crawlId}${age !== undefined ? ` — crawled ${age} min ago` : ''}\n` +
` ${info.nodes} items, ${info.files} files\n` +
` ${info.extracted} with extracted text, ${info.mirrored} mirrored on the server\n` +
(info.indexer?.running ? ` a re-crawl is running (${info.indexer.scope})\n` : ''),
);
return 0;
}
async function list(flags: Flags): Promise<number> {
const api = new ApiClient(await loadCliConfig());
const manifest = await api.manifest();
let entries = manifest.entries.filter((entry) => entry.status !== 'removed');
if (flags.course) entries = entries.filter((entry) => entry.courseId === flags.course);
if (entries.length === 0) {
process.stdout.write('No files.\n');
return 0;
}
entries.sort((a, b) => a.path.localeCompare(b.path));
for (const entry of entries) {
if (flags.long) {
process.stdout.write(`${entry.fileId} ${String(formatBytes(entry.size)).padStart(9)} ${entry.path}\n`);
} else {
process.stdout.write(`${entry.path}\n`);
}
}
process.stderr.write(`\n${entries.length} file(s), generation ${manifest.cursor}\n`);
return 0;
}
async function get(flags: Flags): Promise<number> {
const fileId = String(flags._[0] ?? '');
if (!fileId) {
process.stderr.write('get needs a file id (see: schulcloud ls --long).\n');
return 2;
}
const api = new ApiClient(await loadCliConfig());
const response = await api.file(fileId);
if (!response.body) {
process.stderr.write('Empty response.\n');
return 1;
}
const fromHeader = /filename\*=UTF-8''([^;]+)/.exec(response.headers.get('content-disposition') ?? '')?.[1];
const name = flags.out ? String(flags.out) : fromHeader ? decodeURIComponent(fromHeader) : fileId;
// basename() on the server-supplied name: it must not choose a directory.
const target = flags.out ? resolve(String(flags.out)) : resolve(basename(name));
await mkdir(dirname(target), { recursive: true });
await pipeline(Readable.fromWeb(response.body as never), createWriteStream(target));
process.stdout.write(`${target}\n`);
return 0;
}
async function runSync(flags: Flags): Promise<number> {
const config = await loadCliConfig();
const root = flags.dir ? resolve(String(flags.dir)) : config.syncDir;
const api = new ApiClient(config);
const dryRun = Boolean(flags['dry-run']);
process.stderr.write(`${dryRun ? 'Would sync' : 'Syncing'} to ${root}\n`);
const summary = await sync(api, root, {
dryRun,
prune: Boolean(flags.prune),
full: Boolean(flags.full),
concurrency: Number(flags.jobs ?? 4),
onEvent: (event) => process.stderr.write(describe(event, dryRun)),
});
process.stderr.write(
`\n${dryRun ? 'Would download' : 'Downloaded'} ${summary.downloaded} file(s) (${formatBytes(summary.bytes)})` +
`, moved ${summary.moved}, unchanged ${summary.skipped}` +
(summary.removed ? `, deleted ${summary.removed}` : '') +
(summary.kept ? `, ${summary.kept} gone upstream but kept locally` : '') +
(summary.failed ? `, FAILED ${summary.failed}` : '') +
`\ncursor now ${summary.cursor}\n`,
);
if (summary.kept > 0 && !flags.prune) {
process.stderr.write('Files removed upstream were kept. Pass --prune to delete them locally.\n');
}
return summary.failed > 0 ? 1 : 0;
}
async function refresh(flags: Flags): Promise<number> {
const api = new ApiClient(await loadCliConfig());
const scope = flags.course ? String(flags.course) : undefined;
process.stderr.write(`Asking the server to re-crawl ${scope ? `course ${scope}` : 'everything'}\n`);
const result = (await api.refresh(scope, Boolean(flags.force))) as {
crawlId: number; courses: number; files: number; mirrored: number; extracted: number;
skipped: number; durationMs: number; joined?: boolean;
};
process.stdout.write(
`${result.joined ? 'Joined a crawl already running. ' : ''}` +
`generation ${result.crawlId}: ${result.courses} course(s), ${result.files} files, ` +
`${result.mirrored} newly mirrored, ${result.extracted} text-extracted, ${result.skipped} skipped ` +
`(${(result.durationMs / 1000).toFixed(1)}s)\n`,
);
return 0;
}
function describe(event: SyncEvent, dryRun: boolean): string {
switch (event.type) {
case 'download':
return ` ${dryRun ? 'would get' : 'get '} ${event.entry.path}${event.reason === 'new' ? '' : ` (${event.reason})`}\n`;
case 'move':
return ` ${dryRun ? 'would move' : 'move '} ${event.from}${event.entry.path}\n`;
case 'remove':
return ` ${event.kept ? 'gone upstream, kept' : dryRun ? 'would delete' : 'delete '} ${event.path}\n`;
case 'error':
return ` FAILED ${event.entry.path}: ${event.message}\n`;
case 'skip':
return '';
}
}
// --- flags ---------------------------------------------------------------
interface Flags {
_: string[];
[key: string]: string | boolean | string[] | undefined;
}
/** Minimal flag parsing: --key value, --key=value, --flag, and positionals. */
function parseFlags(argv: string[]): Flags {
const flags: Flags = { _: [] };
for (let i = 0; i < argv.length; i++) {
const token = argv[i]!;
if (!token.startsWith('--')) {
(flags._ as string[]).push(token);
continue;
}
const body = token.slice(2);
const eq = body.indexOf('=');
if (eq !== -1) {
flags[body.slice(0, eq)] = body.slice(eq + 1);
continue;
}
const next = argv[i + 1];
if (next !== undefined && !next.startsWith('--')) {
flags[body] = next;
i++;
} else {
flags[body] = true;
}
}
return flags;
}
main(process.argv.slice(2))
.then((code) => process.exit(code))
.catch((error: unknown) => {
if (error instanceof ApiError) {
process.stderr.write(`${error.message}\n`);
} else {
process.stderr.write(`${error instanceof Error ? error.message : String(error)}\n`);
}
process.exit(1);
});