[chore] app.asar 파일의 체크섬을 추출하는 함수 따로 스크립트로 추출

- 인자는 app.asar 가 존재하는 디렉토리경로

scripts/getChecksumFromAsar.js

@@ -0,0 +1,31 @@
+const fs = require('fs');
+const path = require('path');
+const crypto = require('crypto');
+
+module.exports = async(targetDirPath) => {
+    const asarFilePath = path.resolve(targetDirPath, 'app.asar');
+    if (!fs.existsSync(asarFilePath)) {
+        console.warn('target file not found. checked path is ', asarFilePath);
+        return;
+    }
+
+    try {
+        const digest = await new Promise((resolve, reject) => {
+            const checksum = crypto.createHash('sha1');
+            const readStream = fs.createReadStream(asarFilePath);
+            readStream.on('data', (data) => {
+                checksum.update(data);
+            });
+            readStream.on('end', () => {
+                resolve(checksum.digest('hex'));
+            });
+            readStream.on('error', (e) => {
+                reject(e);
+            });
+        });
+
+        return digest;
+    } catch (e) {
+        console.error('error occurred while read stream ', e);
+    }
+};