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#!/usr/bin/env node

/**

* 清除 src/ 下所有 .ts/.tsx 文件中的 //# sourceMappingURL= 行

* 用法: node scripts/remove-sourcemaps.mjs [--dry-run]

*/

import { readdir, readFile, writeFile } from "fs/promises";

import { join, extname } from "path";

const SRC_DIR = new URL("../src", import.meta.url).pathname;

const DRY_RUN = process.argv.includes("--dry-run");

const EXTENSIONS = new Set([".ts", ".tsx"]);

const PATTERN = /^\s*\/\/# sourceMappingURL=.*$/gm;

async function* walk(dir) {

for (const entry of await readdir(dir, { withFileTypes: true })) {

const full = join(dir, entry.name);

if (entry.isDirectory()) {

yield* walk(full);

} else if (EXTENSIONS.has(extname(entry.name))) {

yield full;

}

}

}

let total = 0;

for await (const file of walk(SRC_DIR)) {

const content = await readFile(file, "utf8");

if (!PATTERN.test(content)) continue;

// reset lastIndex after test

PATTERN.lastIndex = 0;

const cleaned = content.replace(PATTERN, "").replace(/\n{3,}/g, "\n\n");

if (DRY_RUN) {

console.log(`[dry-run] ${file}`);

} else {

await writeFile(file, cleaned, "utf8");

}

total++;

}

console.log(`\n${DRY_RUN ? "[dry-run] " : ""}Processed ${total} files.`);