fix(node): sync hardened Copilot hooks
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ZacharyZhang-NY committed
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@@ -0,0 +1,389 @@
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import assert from 'node:assert/strict';
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import { spawn } from 'node:child_process';
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import { mkdtemp, mkdir, readFile, readdir, rm, writeFile } from 'node:fs/promises';
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import os from 'node:os';
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import path from 'node:path';
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import test from 'node:test';
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import { pathToFileURL } from 'node:url';
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const pluginModuleUrl = pathToFileURL(path.resolve('dist/plugins/copilot.js')).href;
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const registryModuleUrl = pathToFileURL(path.resolve('dist/plugins/registry.js')).href;
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function runNode(args, env, cwd, input = '') {
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return new Promise((resolve, reject) => {
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const child = spawn(process.execPath, args, {
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cwd,
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env: { ...process.env, ...env },
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stdio: ['pipe', '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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child.once('error', reject);
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child.once('close', (code) => resolve({ code, stdout, stderr }));
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child.stdin.end(input);
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});
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}
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function runHook(handler, input) {
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const command = process.platform === 'win32'
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? ['powershell.exe', ['-NoProfile', '-NonInteractive', '-Command', handler.powershell]]
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: ['/bin/sh', ['-c', handler.bash]];
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return new Promise((resolve, reject) => {
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const child = spawn(command[0], command[1], { stdio: ['pipe', 'pipe', 'pipe'] });
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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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child.once('error', reject);
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child.once('close', (code) => resolve({ code, stdout, stderr }));
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child.stdin.end(input);
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});
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}
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async function writeJson(filePath, value) {
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await mkdir(path.dirname(filePath), { recursive: true });
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await writeFile(filePath, typeof value === 'string' ? value : JSON.stringify(value, null, 2));
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}
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async function runPlugin(fixture, method, argument) {
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const source = `
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import { copilotPlugin } from ${JSON.stringify(pluginModuleUrl)};
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const argument = JSON.parse(process.env.ELYDORA_TEST_ARGUMENT);
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const result = await copilotPlugin[process.env.ELYDORA_TEST_METHOD](argument);
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if (result !== undefined) console.log(JSON.stringify(result));
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`;
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return runNode(
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['--input-type=module', '--eval', source],
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{
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HOME: fixture.homeDir,
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USERPROFILE: fixture.homeDir,
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COPILOT_HOME: fixture.copilotHome,
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ELYDORA_TEST_ARGUMENT: JSON.stringify(argument),
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ELYDORA_TEST_METHOD: method,
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},
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fixture.projectDir,
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);
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}
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async function createFixture({
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userConfig,
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legacyConfig,
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guardSource,
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hookSource,
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createRuntimes = true,
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} = {}) {
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const homeDir = await mkdtemp(path.join(os.tmpdir(), 'elydora-copilot-'));
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const projectDir = path.join(homeDir, 'project');
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const copilotHome = path.join(homeDir, 'custom-copilot');
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const configPath = path.join(copilotHome, 'hooks', 'elydora-audit.json');
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const legacyPath = path.join(projectDir, '.github', 'hooks', 'hooks.json');
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const agentDir = path.join(homeDir, '.elydora', 'agent-1');
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const guardScriptPath = path.join(agentDir, 'guard.js');
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const hookScriptPath = path.join(agentDir, 'hook.js');
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await mkdir(projectDir, { recursive: true });
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if (createRuntimes) {
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await mkdir(agentDir, { recursive: true });
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await writeFile(
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guardScriptPath,
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guardSource ?? "process.stdin.resume(); process.stdin.once('end', () => { process.stderr.write('Agent is frozen by Elydora.'); process.exit(2); });\n",
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);
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await writeFile(hookScriptPath, hookSource ?? 'process.stdin.resume();\n');
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await writeFile(path.join(agentDir, 'config.json'), JSON.stringify({
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agent_id: 'agent-1',
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agent_name: 'copilot',
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}));
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}
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if (userConfig !== undefined) await writeJson(configPath, userConfig);
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if (legacyConfig !== undefined) await writeJson(legacyPath, legacyConfig);
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return {
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agentDir,
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configPath,
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copilotHome,
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guardScriptPath,
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homeDir,
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hookScriptPath,
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legacyPath,
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projectDir,
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async install() {
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return runPlugin(this, 'install', {
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agentName: 'copilot',
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agentId: 'agent-1',
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guardScriptPath,
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hookScriptPath,
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});
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},
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async close() {
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await rm(homeDir, { recursive: true, force: true });
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},
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};
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}
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function managedHandler(config, event, scriptName) {
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return config.hooks?.[event]?.find(
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(handler) => handler.bash?.includes(scriptName) || handler.powershell?.includes(scriptName),
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);
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}
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function assertNativeHandler(handler) {
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assert.deepEqual(Object.keys(handler).sort(), ['bash', 'powershell', 'timeoutSec', 'type']);
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assert.equal(handler.type, 'command');
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assert.equal(handler.timeoutSec, 10);
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assert.match(handler.bash, /node(?:\.exe)?/i);
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assert.match(handler.powershell, /^& /);
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}
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function legacyManagedConfig(fixture, extraHooks = {}) {
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return {
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version: 1,
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hooks: {
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preToolUse: [{
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type: 'command',
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bash: `node "${fixture.guardScriptPath}"`,
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powershell: `node "${fixture.guardScriptPath}"`,
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timeoutSec: 5,
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}],
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postToolUse: [{
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type: 'command',
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bash: `node "${fixture.hookScriptPath}"`,
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powershell: `node "${fixture.hookScriptPath}"`,
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timeoutSec: 5,
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}],
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...extraHooks,
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},
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};
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}
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test('GitHub Copilot CLI is registered with the native user hook file', async () => {
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const { SUPPORTED_AGENTS } = await import(registryModuleUrl);
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assert.deepEqual(SUPPORTED_AGENTS.get('copilot'), {
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name: 'GitHub Copilot CLI',
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configDir: '~/.copilot/hooks',
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configFile: 'elydora-audit.json',
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});
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});
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test('Copilot install preserves user hooks, migrates legacy entries, and is idempotent', async () => {
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const fixture = await createFixture({
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userConfig: {
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version: 1,
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disableAllHooks: false,
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hooks: {
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sessionStart: [{ type: 'command', command: 'user-session-hook' }],
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preToolUse: [{ type: 'command', command: 'user-pre-hook' }],
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},
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},
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});
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try {
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await writeJson(fixture.legacyPath, legacyManagedConfig(fixture, {
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notification: [{ type: 'command', command: 'user-notification-hook' }],
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}));
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const first = await fixture.install();
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assert.equal(first.code, 0, first.stderr);
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const second = await fixture.install();
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assert.equal(second.code, 0, second.stderr);
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const config = JSON.parse(await readFile(fixture.configPath, 'utf-8'));
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assert.equal(config.version, 1);
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assert.equal(config.disableAllHooks, false);
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assert.deepEqual(config.hooks.sessionStart, [{ type: 'command', command: 'user-session-hook' }]);
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assert.deepEqual(config.hooks.preToolUse[0], { type: 'command', command: 'user-pre-hook' });
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assert.equal(config.hooks.preToolUse.length, 2);
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assert.equal(config.hooks.postToolUse.length, 1);
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assertNativeHandler(managedHandler(config, 'preToolUse', 'guard.js'));
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assertNativeHandler(managedHandler(config, 'postToolUse', 'hook.js'));
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const legacy = JSON.parse(await readFile(fixture.legacyPath, 'utf-8'));
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assert.deepEqual(legacy, {
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version: 1,
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hooks: {
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notification: [{ type: 'command', command: 'user-notification-hook' }],
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},
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});
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} finally {
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await fixture.close();
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}
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});
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test('Copilot migration removes a legacy file owned entirely by Elydora', async () => {
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const fixture = await createFixture();
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try {
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await writeJson(fixture.legacyPath, legacyManagedConfig(fixture));
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const result = await fixture.install();
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assert.equal(result.code, 0, result.stderr);
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await assert.rejects(readFile(fixture.legacyPath), { code: 'ENOENT' });
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const config = JSON.parse(await readFile(fixture.configPath, 'utf-8'));
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assertNativeHandler(managedHandler(config, 'preToolUse', 'guard.js'));
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} finally {
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await fixture.close();
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}
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});
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test('Copilot commands block freezes and forward the native payload byte-for-byte', async () => {
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const capturePath = path.join(os.tmpdir(), `elydora-copilot-event-${process.pid}-${Date.now()}.json`);
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const fixture = await createFixture({
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hookSource: `
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const fs = require('node:fs');
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const chunks = [];
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process.stdin.on('data', (chunk) => chunks.push(chunk));
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process.stdin.on('end', () => fs.writeFileSync(${JSON.stringify(capturePath)}, Buffer.concat(chunks)));
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`,
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});
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try {
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const install = await fixture.install();
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assert.equal(install.code, 0, install.stderr);
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const config = JSON.parse(await readFile(fixture.configPath, 'utf-8'));
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const guard = managedHandler(config, 'preToolUse', 'guard.js');
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const audit = managedHandler(config, 'postToolUse', 'hook.js');
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const prePayload = JSON.stringify({
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sessionId: 'session-1',
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timestamp: Date.now(),
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cwd: fixture.projectDir,
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toolName: 'powershell',
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toolArgs: { command: 'Get-ChildItem' },
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});
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const guardResult = await runHook(guard, prePayload);
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assert.equal(guardResult.code, 2, guardResult.stderr);
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assert.match(guardResult.stderr, /Agent is frozen by Elydora/);
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const postPayload = JSON.stringify({
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sessionId: 'session-1',
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timestamp: Date.now(),
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cwd: fixture.projectDir,
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toolName: 'powershell',
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toolArgs: { command: 'Get-ChildItem' },
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toolResult: { output: 'ok' },
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});
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const auditResult = await runHook(audit, postPayload);
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assert.equal(auditResult.code, 0, auditResult.stderr);
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assert.equal(await readFile(capturePath, 'utf-8'), postPayload);
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} finally {
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await fixture.close();
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await rm(capturePath, { force: true });
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}
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});
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test('Copilot treats an empty home override as the official default', async () => {
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const fixture = await createFixture();
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try {
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fixture.copilotHome = '';
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const result = await fixture.install();
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assert.equal(result.code, 0, result.stderr);
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const defaultPath = path.join(fixture.homeDir, '.copilot', 'hooks', 'elydora-audit.json');
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const config = JSON.parse(await readFile(defaultPath, 'utf-8'));
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assertNativeHandler(managedHandler(config, 'preToolUse', 'guard.js'));
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const status = await runPlugin(fixture, 'status', null);
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assert.equal(JSON.parse(status.stdout).configPath, defaultPath);
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} finally {
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await fixture.close();
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}
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});
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test('Copilot status requires a complete pair, matching runtime identity, and both scripts', async () => {
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const fixture = await createFixture();
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try {
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assert.equal((await fixture.install()).code, 0);
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let status = await runPlugin(fixture, 'status', null);
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assert.equal(status.code, 0, status.stderr);
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assert.equal(JSON.parse(status.stdout).installed, true);
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const config = JSON.parse(await readFile(fixture.configPath, 'utf-8'));
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delete config.hooks.postToolUse;
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await writeJson(fixture.configPath, config);
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status = await runPlugin(fixture, 'status', null);
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assert.equal(JSON.parse(status.stdout).hookConfigured, false);
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assert.equal((await fixture.install()).code, 0);
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await writeFile(path.join(fixture.agentDir, 'config.json'), '{ malformed');
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status = await runPlugin(fixture, 'status', null);
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assert.equal(status.code, 1);
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assert.match(status.stderr, /parse Elydora runtime config/i);
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} finally {
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await fixture.close();
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}
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});
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test('Copilot uninstall removes exact ownership and preserves user entries', async () => {
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const fixture = await createFixture({
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userConfig: { version: 1, hooks: { notification: [{ type: 'command', command: 'keep' }] } },
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});
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try {
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assert.equal((await fixture.install()).code, 0);
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const config = JSON.parse(await readFile(fixture.configPath, 'utf-8'));
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config.hooks.preToolUse.push({
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type: 'command',
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bash: `'${process.execPath}' '${path.join(fixture.homeDir, '.elydora', 'agent-10', 'guard.js')}'`,
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powershell: 'user-decoy',
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timeoutSec: 10,
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});
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await writeJson(fixture.configPath, config);
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const result = await runPlugin(fixture, 'uninstall', 'agent-1');
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assert.equal(result.code, 0, result.stderr);
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const remaining = JSON.parse(await readFile(fixture.configPath, 'utf-8'));
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assert.deepEqual(remaining.hooks.notification, [{ type: 'command', command: 'keep' }]);
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assert.equal(remaining.hooks.postToolUse, undefined);
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assert.equal(remaining.hooks.preToolUse.length, 1);
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assert.match(remaining.hooks.preToolUse[0].bash, /agent-10/);
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} finally {
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await fixture.close();
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}
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});
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test('Copilot uninstall leaves absent hook sources absent', async () => {
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const fixture = await createFixture();
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try {
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const result = await runPlugin(fixture, 'uninstall', 'agent-1');
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assert.equal(result.code, 0, result.stderr);
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await assert.rejects(readFile(fixture.configPath), { code: 'ENOENT' });
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await assert.rejects(readFile(fixture.legacyPath), { code: 'ENOENT' });
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} finally {
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await fixture.close();
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}
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});
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test('Copilot preserves malformed and invalid configs for recovery', async () => {
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for (const existing of [
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'{ malformed',
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{ hooks: {} },
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{ version: 2, hooks: {} },
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{ version: 1, hooks: null },
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{ version: 1, hooks: { preToolUse: null } },
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{ version: 1, hooks: { preToolUse: [null] } },
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]) {
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const fixture = await createFixture({ userConfig: existing });
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try {
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const before = await readFile(fixture.configPath, 'utf-8');
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const result = await fixture.install();
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assert.equal(result.code, 1);
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assert.equal(await readFile(fixture.configPath, 'utf-8'), before);
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} finally {
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await fixture.close();
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}
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}
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});
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test('Copilot rejects missing runtimes before creating hook config', async () => {
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const fixture = await createFixture({ createRuntimes: false });
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try {
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const result = await fixture.install();
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assert.equal(result.code, 1);
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assert.match(result.stderr, /runtime is missing/i);
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await assert.rejects(readFile(fixture.configPath), { code: 'ENOENT' });
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} finally {
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await fixture.close();
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}
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});
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test('Copilot atomic writes leave no transaction files', async () => {
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const fixture = await createFixture();
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try {
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assert.equal((await fixture.install()).code, 0);
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const files = await readdir(path.dirname(fixture.configPath));
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assert.equal(files.some((name) => name.endsWith('.tmp') || name.endsWith('.rollback')), false);
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} finally {
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await fixture.close();
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}
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});
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