ok

scripts/copy-file.js

@@ -0,0 +1,71 @@
+#!/usr/bin/env node
+
+'use strict';
+
+const fs = require('node:fs');
+const path = require('node:path');
+
+const args = process.argv.slice(2);
+
+if (args.length !== 2) {
+  console.error('Usage: node scripts/copy-file.js <source> <destination>');
+  process.exit(1);
+}
+
+const [sourceInput, destinationInput] = args;
+const projectRoot = path.resolve(__dirname, '..');
+const sourcePath = path.resolve(projectRoot, sourceInput);
+const destinationPath = path.resolve(projectRoot, destinationInput);
+const destinationDir = path.dirname(destinationPath);
+
+function fail(message) {
+  console.error(message);
+  process.exit(1);
+}
+
+function isInsideProjectRoot(targetPath) {
+  const relativePath = path.relative(projectRoot, targetPath);
+  return relativePath === '' || (!relativePath.startsWith('..') && !path.isAbsolute(relativePath));
+}
+
+if (!isInsideProjectRoot(sourcePath) || !isInsideProjectRoot(destinationPath)) {
+  fail('Source and destination must resolve inside the project root.');
+}
+
+if (sourcePath === destinationPath) {
+  fail('Source and destination must be different files.');
+}
+
+if (!fs.existsSync(sourcePath)) {
+  fail(`Source file not found: ${sourceInput}`);
+}
+
+let sourceStats;
+try {
+  sourceStats = fs.statSync(sourcePath);
+} catch (error) {
+  fail(`Unable to read source file "${sourceInput}": ${error.message}`);
+}
+
+if (!sourceStats.isFile()) {
+  fail(`Source is not a file: ${sourceInput}`);
+}
+
+let destinationDirStats;
+try {
+  destinationDirStats = fs.statSync(destinationDir);
+} catch {
+  fail(`Destination directory not found: ${path.relative(projectRoot, destinationDir)}`);
+}
+
+if (!destinationDirStats.isDirectory()) {
+  fail(`Destination parent is not a directory: ${path.relative(projectRoot, destinationDir)}`);
+}
+
+try {
+  fs.copyFileSync(sourcePath, destinationPath);
+} catch (error) {
+  fail(`Copy failed (${sourceInput} -> ${destinationInput}): ${error.message}`);
+}
+
+console.log(`Copied ${sourceInput} -> ${destinationInput}`);