external/vscode-copilot-bridge
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Copilot access auto-reacquire: per-request getAccess(), healthz best-effort under verbose, live status/log updates

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Co-Authored-By: Lars Baunwall <larslb@thinkability.dk>
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Devin AI 2025-08-12 18:17:07 +00:00
parent 71bf0e1422
commit 862eab2a4a
2 changed files with 42 additions and 0 deletions
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5
README.md
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@ -25,6 +25,11 @@ Prerequisites:
- Node.js 18+ (recommended)
- npm
- Auto-recovery: the bridge re-requests Copilot access on each chat request if missing; no restart required after signing in. `/healthz` will best-effort recheck only when `bridge.verbose` is true.
Steps:
1) Install deps and compile:
npm install

37
src/extension.ts
View file

@ -75,6 +75,11 @@ async function startBridge() {
}
if (req.method === 'GET' && req.url === '/healthz') {
const cfgNow = vscode.workspace.getConfiguration('bridge');
const verboseNow = cfgNow.get<boolean>('verbose') ?? false;
if (!access && verboseNow) {
await getAccess();
}
writeJson(res, 200, { ok: true, copilot: access ? 'ok' : 'unavailable', version: vscode.version });
return;
}
@ -85,6 +90,14 @@ async function startBridge() {
}
if (req.method === 'POST' && req.url?.startsWith('/v1/chat/completions')) {
if (!access) {
if (verbose) output?.appendLine('Copilot access missing; attempting to acquire...');
await getAccess();
}
if (!access) {
if (verbose) output?.appendLine('Copilot access missing; attempting to acquire...');
await getAccess();
}
if (!access) {
writeJson(res, 503, { error: { message: 'Copilot unavailable', type: 'server_error', code: 'copilot_unavailable' } });
return;
@ -106,6 +119,7 @@ async function startBridge() {
const prompt = normalizeMessages(messages, hist);
const streamMode = body?.stream !== false;
if (verbose) output?.appendLine('Starting Copilot chat session...');
const session = await access.startSession();
const chatStream = await session.sendRequest({ prompt, attachments: [] });
@ -162,6 +176,7 @@ async function startBridge() {
res.writeHead(404).end();
} catch (e: any) {
output?.appendLine(`Error: ${e?.stack || e?.message || String(e)}`);
access = undefined;
writeJson(res, 500, { error: { message: e?.message ?? 'internal_error', type: 'server_error', code: 'internal_error' } });
}
});
@ -216,6 +231,28 @@ function normalizeMessages(messages: any[], histWindow: number): string {
const sysPart = sys ? `[SYSTEM]\n${toText(sys.content)}\n\n` : '';
return `${sysPart}[DIALOG]\n${dialog}`;
}
async function getAccess(force = false): Promise<vscode.ChatAccess | undefined> {
if (!force && access) return access;
const cfg = vscode.workspace.getConfiguration('bridge');
const verbose = cfg.get<boolean>('verbose') ?? false;
try {
const newAccess = await vscode.chat.requestChatAccess('copilot');
access = newAccess;
const info = server ? server.address() : undefined;
const bound = info && typeof info === 'object' ? `${info.address}:${info.port}` : '';
statusItem && (statusItem.text = `Copilot Bridge: OK ${bound ? `@ ${bound}` : ''}`);
if (verbose) output?.appendLine('Copilot access acquired.');
return access;
} catch (e: any) {
access = undefined;
const info = server ? server.address() : undefined;
const bound = info && typeof info === 'object' ? `${info.address}:${info.port}` : '';
statusItem && (statusItem.text = `Copilot Bridge: Unavailable ${bound ? `@ ${bound}` : ''}`);
if (verbose) output?.appendLine(`Copilot access request failed: ${e?.message || String(e)}`);
return undefined;
}
}
function readJson(req: http.IncomingMessage): Promise<any> {
return new Promise((resolve, reject) => {