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/**
* build.js
* 각 확장 프로그램의 소스를 난독화, 압축하여 dist/<이름>/ 에 출력한다.
*
* 사전 준비:
* npm install # 최초 1회 의존 패키지 설치
*
* 사용법:
* node build.js google-search # google-search 빌드
* node build.js naver-cookies # naver-cookies 빌드
* node build.js naver-products # naver-products 빌드
*
* 처리 내용:
* JS: javascript-obfuscator (난독화 + 코드 압축)
* HTML: html-minifier-terser (공백/주석 제거)
* CSS: clean-css (공백/주석 제거)
* JSON: JSON.parse+stringify (공백 제거)
* 그 외: 파일 그대로 복사
*/
'use strict';
const fs = require('fs');
const path = require('path');
const JavaScriptObfuscator = require('javascript-obfuscator');
const { minify: minifyHtml } = require('html-minifier-terser');
const CleanCSS = require('clean-css');
const ROOT = __dirname;
const DIST = path.join(ROOT, 'dist');
// 빌드에서 제외할 파일/폴더
const IGNORE = new Set(['README.md', 'LICENSE', '.gitignore', 'node_modules', 'package.json', 'package-lock.json', 'docs', 'dist', 'env', 'temp']);
// 유틸리티
function rimraf(dir) {
if (!fs.existsSync(dir)) return;
for (const entry of fs.readdirSync(dir, { withFileTypes: true })) {
const full = path.join(dir, entry.name);
if (entry.isDirectory()) rimraf(full);
else fs.unlinkSync(full);
}
fs.rmdirSync(dir);
}
function kb(input) {
const bytes = typeof input === 'string' ? Buffer.byteLength(input, 'utf8') : input;
return (bytes / 1024).toFixed(1) + 'KB';
}
function totalSize(dir) {
let total = 0;
for (const e of fs.readdirSync(dir, { withFileTypes: true })) {
const p = path.join(dir, e.name);
if (e.isDirectory()) total += totalSize(p);
else total += fs.statSync(p).size;
}
return total;
}
// JS 난독화 옵션
const JS_OBFUSCATOR_OPTIONS = {
compact: true,
controlFlowFlattening: true,
controlFlowFlatteningThreshold: 0.5,
deadCodeInjection: true,
deadCodeInjectionThreshold: 0.2,
debugProtection: false,
disableConsoleOutput: false,
identifierNamesGenerator: 'hexadecimal',
renameGlobals: false,
rotateStringArray: true,
selfDefending: true,
shuffleStringArray: true,
splitStrings: true,
splitStringsChunkLength: 8,
stringArray: true,
stringArrayCallsTransform: true,
stringArrayEncoding: ['base64'],
stringArrayIndexShift: true,
stringArrayRotate: true,
stringArrayShuffle: true,
stringArrayWrappersCount: 2,
stringArrayWrappersParametersMaxCount: 4,
stringArrayWrappersType: 'function',
stringArrayThreshold: 0.75,
transformObjectKeys: true,
unicodeEscapeSequence: false,
target: 'browser',
};
// 재귀 빌드
async function processDir(srcDir, destDir) {
fs.mkdirSync(destDir, { recursive: true });
for (const entry of fs.readdirSync(srcDir, { withFileTypes: true })) {
if (IGNORE.has(entry.name)) continue;
const srcPath = path.join(srcDir, entry.name);
const destPath = path.join(destDir, entry.name);
if (entry.isDirectory()) {
await processDir(srcPath, destPath);
continue;
}
const ext = path.extname(entry.name).toLowerCase();
if (ext === '.js') {
const src = fs.readFileSync(srcPath, 'utf8');
const result = JavaScriptObfuscator.obfuscate(src, JS_OBFUSCATOR_OPTIONS);
fs.writeFileSync(destPath, result.getObfuscatedCode(), 'utf8');
const srcSz = Buffer.byteLength(src, 'utf8');
const destSz = Buffer.byteLength(result.getObfuscatedCode(), 'utf8');
console.log(` [JS] ${entry.name}: ${kb(srcSz)} → ${kb(destSz)}`);
} else if (ext === '.html') {
const src = fs.readFileSync(srcPath, 'utf8');
const out = await minifyHtml(src, {
collapseWhitespace: true,
removeComments: true,
removeEmptyAttributes: true,
minifyCSS: true,
minifyJS: true,
});
fs.writeFileSync(destPath, out, 'utf8');
console.log(` [HTML] ${entry.name}: ${kb(src)} → ${kb(out)}`);
} else if (ext === '.css') {
const src = fs.readFileSync(srcPath, 'utf8');
const out = new CleanCSS({ level: 2 }).minify(src).styles;
fs.writeFileSync(destPath, out, 'utf8');
console.log(` [CSS] ${entry.name}: ${kb(src)} → ${kb(out)}`);
} else if (ext === '.json') {
const src = fs.readFileSync(srcPath, 'utf8');
try {
const out = JSON.stringify(JSON.parse(src));
fs.writeFileSync(destPath, out, 'utf8');
console.log(` [JSON] ${entry.name}: ${kb(src)} → ${kb(out)}`);
} catch {
fs.copyFileSync(srcPath, destPath);
console.log(` [JSON] ${entry.name}: 파싱 실패, 그대로 복사`);
}
} else {
fs.copyFileSync(srcPath, destPath);
console.log(` [COPY] ${entry.name}`);
}
}
}
// 메인
(async () => {
const target = process.argv[2];
if (!target) {
console.error('사용법: node build.js <확장프로그램 폴더명>');
console.error('예시 : node build.js naver-cookies');
process.exit(1);
}
// <target>/ 이 소스 폴더 (manifest.json이 바로 아래에 위치)
const srcDir = path.join(ROOT, target);
const destDir = path.join(DIST, target);
if (!fs.existsSync(srcDir)) {
console.error(`소스 폴더가 없습니다: ${srcDir}`);
process.exit(1);
}
console.log(`=== ${target} 난독화 빌드 ===`);
console.log(`SRC : ${srcDir}`);
console.log(`DEST: ${destDir}\n`);
rimraf(destDir);
fs.mkdirSync(destDir, { recursive: true });
try {
await processDir(srcDir, destDir);
const srcTotal = totalSize(srcDir);
const destTotal = totalSize(destDir);
console.log(`\n원본: ${kb(srcTotal)} → 빌드: ${kb(destTotal)} (${((destTotal / srcTotal - 1) * 100).toFixed(0)}%)`);
console.log('=== 빌드 완료 ===');
} catch (err) {
console.error('빌드 오류:', err.message);
process.exit(1);
}
})();