forge CLI pivot: rewrite gitea+gitlab clients to tea/glab transports
Replace raw fetch transport with CLI subprocess calls: - Gitea: spawn 'tea api --include' with GITEA_SERVER_TOKEN env var - GitLab: spawn 'glab api --include' with GITLAB_TOKEN env var Binary paths env-overridable (TEA_BIN / GLAB_BIN). 8s request timeout via AbortSignal on spawned process. ETag cache and rate-limit cooldown dropped (tradeoff documented). Pagination via --paginate for list endpoints. Tests mock child_process.spawn instead of globalThis.fetch.
This commit is contained in:
@@ -1,193 +1,147 @@
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import { spawn } from 'child_process';
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import { getGitLabAuth, getGitLabDefaultBaseUrl } from './auth.js';
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// Per-request timeout for every GitLab call. GitLab REST can hang under load
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// (especially self-hosted instances); bounding each request lets the caller
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// fail fast and serve cached/last-known state instead of holding a socket open.
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const GLAB_BIN = process.env.GLAB_BIN || '/home/user/.local/bin/glab';
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const REQUEST_TIMEOUT_MS = 8000;
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const timeoutFetch = (url, options = {}) => {
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// Respect a caller-provided signal if present; otherwise attach our timeout.
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if (options.signal) {
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return fetch(url, options);
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}
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return fetch(url, { ...options, signal: AbortSignal.timeout(REQUEST_TIMEOUT_MS) });
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};
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// Conditional-request cache for GET calls: GitLab serves 304 Not Modified for
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// matching If-None-Match without consuming a fresh rate-limit token, so
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// polling unchanged issues/MRs stays cheap. Keyed by token+URL so different
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// identities never share responses. GitLab (unlike GitHub) does not attach
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// `ETag` to every endpoint, but when it does we revalidate exactly like
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// github/octokit.js.
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const ETAG_CACHE_MAX_ENTRIES = 300;
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const etagCache = new Map();
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const rememberEtag = (key, etag, body, headers) => {
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etagCache.delete(key);
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etagCache.set(key, { etag, body, headers });
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if (etagCache.size > ETAG_CACHE_MAX_ENTRIES) {
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const oldest = etagCache.keys().next().value;
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if (oldest !== undefined) {
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etagCache.delete(oldest);
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}
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}
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};
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const createConditionalFetch = (token) => async (url, options = {}) => {
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const method = (options.method || 'GET').toUpperCase();
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if (method !== 'GET') {
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return timeoutFetch(url, options);
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}
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const cacheKey = `${token}\n${url}`;
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const cached = etagCache.get(cacheKey);
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const headers = { ...(options.headers || {}) };
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if (cached?.etag) {
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headers['if-none-match'] = cached.etag;
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}
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const response = await timeoutFetch(url, { ...options, headers });
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if (response.status === 304 && cached) {
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// Touch for LRU and replay the cached success response.
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rememberEtag(cacheKey, cached.etag, cached.body, cached.headers);
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return new Response(cached.body, { status: 200, headers: cached.headers });
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}
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if (response.ok) {
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const etag = response.headers.get('etag');
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if (etag) {
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const body = await response.arrayBuffer();
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rememberEtag(cacheKey, etag, body, response.headers);
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return new Response(body, { status: response.status, headers: response.headers });
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}
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}
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return response;
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};
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// ---- Own rate-limit cooldown (deliberately NOT shared with github/rate-limit.js) ----
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const MAX_COOLDOWN_MS = 15 * 60 * 1000;
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const DEFAULT_COOLDOWN_MS = 60 * 1000;
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let rateLimitedUntil = 0;
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const headerValue = (headers, name) => {
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if (!headers) return undefined;
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if (typeof headers.get === 'function') return headers.get(name);
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return headers[name];
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};
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// NOTE: ETag conditional-GET cache and rate-limit cooldown have been dropped
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// with the pivot to CLI transports. Each call spawns a fresh `glab` process,
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// so there is no persistent connection to attach conditional headers to, and
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// rate-limit state cannot be shared across invocations. The tradeoff is higher
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// latency per call (process spawn overhead) and no 304 short-circuit, but
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// simpler state management and no module-level mutable cache. Callers that
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// relied on `isGitLabRateLimited()` will always see false (no cooldown active).
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/**
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* Record a cooldown after a GitLab 429. Accepts a fetch Response or any object
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* carrying headers (response, `retry-after` seconds, or `RateLimit-Reset`
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* Unix seconds).
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* Spawn a CLI binary and return { stdout, stderr, exitCode }.
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* Rejects if the process does not finish within REQUEST_TIMEOUT_MS.
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*/
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export function noteGitLabRateLimit(error) {
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const headers = error?.headers;
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let retryMs = null;
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const retryAfter = headerValue(headers, 'retry-after');
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if (retryAfter !== undefined && retryAfter !== null) {
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const secs = Number(retryAfter);
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if (Number.isFinite(secs) && secs > 0) retryMs = secs * 1000;
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function spawnCli(bin, args, env, timeoutMs = REQUEST_TIMEOUT_MS) {
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return new Promise((resolve, reject) => {
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const child = spawn(bin, args, {
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env: { ...process.env, ...env },
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stdio: ['ignore', 'pipe', 'pipe'],
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});
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let stdout = '';
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let stderr = '';
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child.stdout.on('data', (chunk) => { stdout += chunk; });
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child.stderr.on('data', (chunk) => { stderr += chunk; });
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const timer = setTimeout(() => {
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child.kill('SIGKILL');
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reject(new Error(`CLI ${bin} timed out after ${timeoutMs}ms`));
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}, timeoutMs);
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child.on('close', (code) => {
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clearTimeout(timer);
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resolve({ stdout, stderr, exitCode: code ?? 1 });
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});
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child.on('error', (err) => {
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clearTimeout(timer);
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reject(err);
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});
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});
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}
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/**
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* Run a `glab api` call and parse the response envelope.
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*
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* `glab api --include` outputs:
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* <status line: HTTP/1.1 200 OK>
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* <headers, one per line>
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* <empty line>
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* <JSON body>
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*
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* Without `--include`, stdout is just the JSON body on success.
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*/
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async function glabApiCall(endpoint, { method = 'GET', body, raw, paginate, glabBin, token }) {
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const args = ['api', '--include'];
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if (method !== 'GET') args.push('-X', method);
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if (paginate) args.push('--paginate');
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if (raw) args.push('--header', 'Accept: text/plain');
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if (body !== undefined) args.push('--header', 'Content-Type: application/json', '-d', JSON.stringify(body));
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args.push(endpoint);
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let result;
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try {
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result = await spawnCli(glabBin, args, { GITLAB_TOKEN: token });
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} catch (err) {
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return { status: 500, headers: {}, data: null, page: null, error: err.message };
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}
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if (retryMs === null) {
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const reset = headerValue(headers, 'ratelimit-reset');
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if (reset !== undefined && reset !== null) {
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const delta = Number(reset) * 1000 - Date.now();
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if (Number.isFinite(delta) && delta > 0) retryMs = delta;
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const { stdout, stderr, exitCode } = result;
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if (exitCode !== 0 && !stdout.trim()) {
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return { status: 500, headers: {}, data: null, page: null, error: stderr.trim() || `glab exited with code ${exitCode}` };
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}
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// Parse --include output: status line, headers, blank line, body.
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const lines = stdout.split('\n');
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let status = 200;
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const headers = {};
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let bodyStart = 0;
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const statusMatch = lines[0]?.match(/HTTP\/\S+\s+(\d+)/);
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if (statusMatch) {
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status = Number(statusMatch[1]);
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for (let i = 1; i < lines.length; i++) {
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if (lines[i].trim() === '') {
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bodyStart = i + 1;
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break;
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}
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const colonIdx = lines[i].indexOf(':');
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if (colonIdx > 0) {
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headers[lines[i].slice(0, colonIdx).trim().toLowerCase()] = lines[i].slice(colonIdx + 1).trim();
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}
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}
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}
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if (retryMs === null) retryMs = DEFAULT_COOLDOWN_MS;
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retryMs = Math.min(retryMs, MAX_COOLDOWN_MS);
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const until = Date.now() + retryMs;
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if (until > rateLimitedUntil) {
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rateLimitedUntil = until;
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console.warn(`[gitlab] rate limited — pausing GitLab calls for ~${Math.round(retryMs / 1000)}s`);
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const bodyText = lines.slice(bodyStart).join('\n').trim();
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if (!bodyText) {
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return { status, headers, data: null, page: null };
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}
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if (raw) {
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return { status, headers, data: bodyText, page: null };
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}
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try {
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return { status, headers, data: JSON.parse(bodyText), page: null };
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} catch {
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return { status, headers, data: bodyText, page: null };
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}
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}
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export function isGitLabRateLimited() {
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return Date.now() < rateLimitedUntil;
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}
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// ---- Rate-limit helpers (no-ops with CLI transport) ----
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export function noteGitLabRateLimit() { /* no-op: CLI processes are stateless */ }
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export function isGitLabRateLimited() { return false; }
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// ---- Response helpers ----
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const joinApiUrl = (baseUrl, path) => {
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const base = String(baseUrl || getGitLabDefaultBaseUrl()).replace(/\/+$/, '');
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const p = typeof path === 'string' && path ? (path.startsWith('/') ? path : `/${path}`) : '';
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return `${base}/api/v4${p}`;
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};
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const headersToObject = (headers) => {
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const out = {};
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if (!headers) return out;
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if (typeof headers.forEach === 'function') {
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headers.forEach((value, key) => {
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out[key] = value;
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});
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} else if (typeof headers === 'object') {
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for (const [key, value] of Object.entries(headers)) {
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out[key] = value;
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}
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}
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return out;
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};
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const parsePageInfo = (headers) => {
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const get = (name) => {
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const value = headerValue(headers, name);
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return typeof value === 'string' ? value : '';
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};
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const pageHeader = get('x-page');
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const nextPage = get('x-next-page');
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const totalPages = get('x-total-pages');
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const linkHeader = get('link');
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const relNextMatch = linkHeader.match(/<([^>]+)>\s*;\s*rel="next"/);
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const page = pageHeader ? Number(pageHeader) : null;
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const next = nextPage ? Number(nextPage) : null;
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const total = totalPages ? Number(totalPages) : null;
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const hasMore = next != null ? next > 0 : Boolean(relNextMatch);
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const parsed = { page, next, total, hasMore };
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if (relNextMatch) {
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parsed.nextUrl = relNextMatch[1];
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}
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return parsed;
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};
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const parseData = async (response) => {
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const text = await response.text();
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if (!text) {
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return null;
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}
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try {
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return JSON.parse(text);
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} catch {
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return null;
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}
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};
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const encodeProject = (pathWithNamespace) => encodeURIComponent(String(pathWithNamespace));
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// Build the relative API path for glab CLI. glab resolves the base URL from its
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// own config, so we pass only the /api/v4/... portion.
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const apiPath = (path) => {
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const p = typeof path === 'string' && path ? (path.startsWith('/') ? path : `/${path}`) : '';
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return `/api/v4${p}`;
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};
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/**
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* Create a raw-fetch GitLab REST v4 client. `request` never throws for HTTP
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* error statuses — it returns `{ status, headers, data, page }` so callers can
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* branch on status codes. On 429 it also sets `error: 'GitLab rate limited'`
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* and records a module-level cooldown.
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* Create a CLI-backed GitLab REST v4 client. Spawns `glab api` for each
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* request. `request` never throws for HTTP error statuses — it returns
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* `{ status, headers, data, page }` so callers can branch on status codes.
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*/
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export function createGitLabClient({ token, baseUrl }) {
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const effectiveBaseUrl = normalizeBaseForClient(baseUrl);
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const glabBin = process.env.GLAB_BIN || '/home/user/.local/bin/glab';
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const request = async (path, options = {}) => {
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const method = (typeof options.method === 'string' ? options.method : 'GET').toUpperCase();
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const query = options.query && typeof options.query === 'object' ? options.query : {};
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const body = options.body;
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const callerSignal = options.signal;
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if (isGitLabRateLimited()) {
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return { status: 429, headers: {}, data: null, page: null, error: 'GitLab rate limited' };
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}
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// Build the relative endpoint path with query params baked in.
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let endpoint = apiPath(path);
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let url = joinApiUrl(effectiveBaseUrl, path);
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const qs = new URLSearchParams();
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let hasQuery = false;
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for (const [key, value] of Object.entries(query)) {
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@@ -196,61 +150,11 @@ export function createGitLabClient({ token, baseUrl }) {
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hasQuery = true;
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}
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if (hasQuery) {
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url += `${url.includes('?') ? '&' : '?'}${qs.toString()}`;
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endpoint += `${endpoint.includes('?') ? '&' : '?'}${qs.toString()}`;
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}
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const headers = {
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'PRIVATE-TOKEN': token,
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accept: 'application/json',
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};
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const fetchOptions = {
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method,
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headers,
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redirect: 'manual',
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};
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if (body !== undefined) {
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headers['content-type'] = 'application/json';
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fetchOptions.body = JSON.stringify(body);
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}
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if (callerSignal) {
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fetchOptions.signal = callerSignal;
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}
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const conditionalFetch = createConditionalFetch(token);
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let response = await conditionalFetch(url, fetchOptions);
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// Follow a project-move redirect exactly once. GitLab redirects
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// (301/302/308) come with a `Location` for the new project URL; a manual
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// redirect keeps our PRIVATE-TOKEN header across the hop. Only follow
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// same-origin redirects to avoid leaking the token to a different host.
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let redirects = 0;
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const baseHost = new URL(url).host;
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while (
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(response.status === 301 || response.status === 302 || response.status === 308)
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&& headerValue(response.headers, 'location')
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&& redirects < 1
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) {
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const location = headerValue(response.headers, 'location');
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const nextUrl = new URL(location, url).toString();
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if (new URL(nextUrl).host !== baseHost) break;
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response = await conditionalFetch(nextUrl, fetchOptions);
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redirects += 1;
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}
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const result = {
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status: response.status,
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headers: headersToObject(response.headers),
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data: await parseData(response),
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page: parsePageInfo(response.headers),
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};
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if (response.status === 429) {
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noteGitLabRateLimit(response);
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result.error = 'GitLab rate limited';
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}
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return result;
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const paginate = method === 'GET' && hasQuery;
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return glabApiCall(endpoint, { method, body, paginate, glabBin, token });
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};
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return {
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@@ -294,9 +198,6 @@ export function createGitLabClient({ token, baseUrl }) {
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request(`/projects/${encodeProject(pathWithNamespace)}/merge_requests/${iid}/merge`, { method: 'PUT', body }),
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branches: (pathWithNamespace, params = {}) =>
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request(`/projects/${encodeProject(pathWithNamespace)}/repository/branches`, { query: params }),
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// Project members (direct + inherited) are the assignable/mentionable user
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// set. `members/all` includes inherited group members; `query` filters
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// server-side by username/name/email.
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members: (pathWithNamespace, params = {}) =>
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request(`/projects/${encodeProject(pathWithNamespace)}/members/all`, { query: params }),
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labels: (pathWithNamespace, params = {}) =>
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