84 lines
2 KiB
JavaScript
84 lines
2 KiB
JavaScript
#!/usr/bin/env node
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/**
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* PreToolUse hook: auto-backup config files before Edit/Write.
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* Reads $TOOL_INPUT to check if the target file is a config file.
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* If yes, backs it up via scanners/lib/backup.mjs.
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* Fast path — no scanner execution.
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*/
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import { existsSync } from 'node:fs';
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import { basename, dirname, sep } from 'node:path';
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// Config file patterns to protect
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const CONFIG_PATTERNS = [
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/CLAUDE\.md$/i,
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/CLAUDE\.local\.md$/i,
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/settings\.json$/,
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/settings\.local\.json$/,
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/hooks\.json$/,
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/\.mcp\.json$/,
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/keybindings\.json$/,
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];
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const CONFIG_DIRS = ['rules'];
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function isConfigFile(filePath) {
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if (!filePath) return false;
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const name = basename(filePath);
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const dir = dirname(filePath);
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// Check filename patterns
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for (const pattern of CONFIG_PATTERNS) {
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if (pattern.test(name)) return true;
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}
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// Check if inside a rules/ directory
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for (const d of CONFIG_DIRS) {
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if (dir.includes(`${sep}${d}${sep}`) || dir.endsWith(`${sep}${d}`)) {
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if (name.endsWith('.md')) return true;
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}
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}
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return false;
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}
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/**
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* Read all data from stdin asynchronously.
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* @returns {Promise<string>}
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*/
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function readStdin() {
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return new Promise((resolve, reject) => {
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const chunks = [];
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process.stdin.setEncoding('utf-8');
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process.stdin.on('data', chunk => chunks.push(chunk));
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process.stdin.on('end', () => resolve(chunks.join('')));
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process.stdin.on('error', reject);
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});
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}
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async function main() {
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let input;
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try {
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input = await readStdin();
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} catch {
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process.exit(0);
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}
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let toolInput;
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try {
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toolInput = JSON.parse(input);
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} catch {
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process.exit(0);
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}
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const filePath = toolInput.file_path || toolInput.path;
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if (!filePath || !isConfigFile(filePath) || !existsSync(filePath)) {
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process.exit(0);
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}
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const { createBackup } = await import('../../scanners/lib/backup.mjs');
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const { backupPath } = createBackup([filePath]);
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process.stderr.write(`[config-audit] Auto-backup: ${basename(filePath)} → ${backupPath}\n`);
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}
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main().catch(() => process.exit(0));
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