refactor: Created fs dir and moved async fs stuff there

Author: JohnstonCode

src/fs/exists.ts

@@ -0,0 +1,7 @@
+import { access } from "fs";
+
+export function exists(path: string): Promise<boolean> {
+  return new Promise((resolve, reject) => {
+    access(path, err => (err ? reject(err) : resolve(true)));
+  });
+}

src/fs/readdir.ts

@@ -0,0 +1,13 @@
+import { readdir as fsReaddir } from "fs";
+
+export function readdir(path: string): Promise<string[]> {
+  return new Promise((resolve, reject) => {
+    fsReaddir(path, (err, files) => {
+      if (err) {
+        reject(err);
+      }
+
+      resolve(files);
+    });
+  });
+}

src/fs/stat.ts

@@ -0,0 +1,13 @@
+import { stat as fsStat, Stats } from "fs";
+
+export function stat(filePath: string): Promise<Stats> {
+  return new Promise((resolve, reject) => {
+    fsStat(filePath, (err, stats) => {
+      if (err) {
+        reject(err);
+      }
+
+      resolve(stats);
+    });
+  });
+}

src/model.ts

@@ -31,7 +31,9 @@ import {
   isDescendant,
   normalizePath
 } from "./util";
-import { exists, readDir, stat } from "./util/async_fs";
+import { exists } from "./fs/exists";
+import { readdir } from "./fs/readdir";
+import { stat } from "./fs/stat";
 import { matchAll } from "./util/globMatch";
 
 export class Model implements IDisposable {
@@ -336,7 +338,7 @@ export class Model implements IDisposable {
       let files: string[] | Buffer[] = [];
 
       try {
-        files = await readDir(path);
+        files = await readdir(path);
       } catch (error) {
         return;
       }