chore: cleanup files and split into modules

src/file-utils.ts

@@ -0,0 +1,61 @@
+import { spawn } from '@malept/cross-spawn-promise';
+import * as fs from 'fs-extra';
+import * as path from 'path';
+
+const MACHO_PREFIX = 'Mach-O ';
+
+export enum AppFileType {
+  MACHO,
+  PLAIN,
+  SNAPSHOT,
+  APP_CODE,
+}
+
+export type AppFile = {
+  relativePath: string;
+  type: AppFileType;
+};
+
+/**
+ *
+ * @param appPath Path to the application
+ */
+export const getAllAppFiles = async (appPath: string): Promise<AppFile[]> => {
+  const files: AppFile[] = [];
+
+  const visited = new Set<string>();
+  const traverse = async (p: string) => {
+    p = await fs.realpath(p);
+    if (visited.has(p)) return;
+    visited.add(p);
+
+    const info = await fs.stat(p);
+    if (info.isSymbolicLink()) return;
+    if (info.isFile()) {
+      let fileType = AppFileType.PLAIN;
+
+      const fileOutput = await spawn('file', ['--brief', '--no-pad', p]);
+      if (p.includes('app.asar')) {
+        fileType = AppFileType.APP_CODE;
+      } else if (fileOutput.startsWith(MACHO_PREFIX)) {
+        fileType = AppFileType.MACHO;
+      } else if (p.endsWith('.bin')) {
+        fileType = AppFileType.SNAPSHOT;
+      }
+
+      files.push({
+        relativePath: path.relative(appPath, p),
+        type: fileType,
+      });
+    }
+
+    if (info.isDirectory()) {
+      for (const child of await fs.readdir(p)) {
+        await traverse(path.resolve(p, child));
+      }
+    }
+  };
+  await traverse(appPath);
+
+  return files;
+};