split func to misc

src/main.ts

@@ -1,5 +1,3 @@
-import * as path from "path";
-import * as fs from "fs";
 import { Buffer } from "buffer";
 import { Readable } from "stream";
 import * as mime from "mime-types";
@@ -24,6 +22,12 @@ import {
   DEFAULT_TBL_DELETE_HISTORY,
 } from "./localdb";
 
+import {
+  getFolderLevels,
+  bufferToArrayBuffer,
+  getObjectBodyToArrayBuffer,
+} from "./misc";
+
 import {
   S3Client,
   ListObjectsV2Command,
@@ -47,68 +51,6 @@ const DEFAULT_SETTINGS: SaveRemotePluginSettings = {
   s3BucketName: "",
 };
 
-const ignoreHiddenFiles = (item: string) => {
-  const basename = path.basename(item);
-  return basename === "." || basename[0] !== ".";
-};
-
-/**
- * Util func for mkdir -p based on the "path" of original file or folder
- * "a/b/c/" => ["a", "a/b", "a/b/c"]
- * "a/b/c/d/e.txt" => ["a", "a/b", "a/b/c", "a/b/c/d"]
- * @param x string
- * @returns string[] might be empty
- */
-const getFolderLevels = (x: string) => {
-  const res: string[] = [];
-
-  if (x === "" || x === "/") {
-    return res;
-  }
-
-  const y1 = x.split("/");
-  let i = 0;
-  for (let index = 0; index + 1 < y1.length; index++) {
-    res.push(y1.slice(0, index + 1).join("/"));
-  }
-  return res;
-};
-
-/**
- * https://stackoverflow.com/questions/8609289
- * @param b Buffer
- * @returns ArrayBuffer
- */
-const bufferToArrayBuffer = (b: Buffer) => {
-  return b.buffer.slice(b.byteOffset, b.byteOffset + b.byteLength);
-};
-
-/**
- * The Body of resp of aws GetObject has mix types
- * and we want to get ArrayBuffer here.
- * See https://github.com/aws/aws-sdk-js-v3/issues/1877
- * @param b The Body of GetObject
- * @returns Promise<ArrayBuffer>
- */
-const getObjectBodyToArrayBuffer = async (
-  b: Readable | ReadableStream | Blob
-) => {
-  if (b instanceof Readable) {
-    const chunks: Uint8Array[] = [];
-    for await (let chunk of b) {
-      chunks.push(chunk);
-    }
-    const buf = Buffer.concat(chunks);
-    return bufferToArrayBuffer(buf);
-  } else if (b instanceof ReadableStream) {
-    return await new Response(b, {}).arrayBuffer();
-  } else if (b instanceof Blob) {
-    return await b.arrayBuffer();
-  } else {
-    throw TypeError(`The type of ${b} is not one of the supported types`);
-  }
-};
-
 export default class SaveRemotePlugin extends Plugin {
   settings: SaveRemotePluginSettings;
   cm: CodeMirror.Editor;

src/misc.ts

@@ -0,0 +1,66 @@
+import * as path from "path";
+import * as fs from "fs";
+import { Buffer } from "buffer";
+import { Readable } from "stream";
+
+export const ignoreHiddenFiles = (item: string) => {
+  const basename = path.basename(item);
+  return basename === "." || basename[0] !== ".";
+};
+
+/**
+ * Util func for mkdir -p based on the "path" of original file or folder
+ * "a/b/c/" => ["a", "a/b", "a/b/c"]
+ * "a/b/c/d/e.txt" => ["a", "a/b", "a/b/c", "a/b/c/d"]
+ * @param x string
+ * @returns string[] might be empty
+ */
+export const getFolderLevels = (x: string) => {
+  const res: string[] = [];
+
+  if (x === "" || x === "/") {
+    return res;
+  }
+
+  const y1 = x.split("/");
+  let i = 0;
+  for (let index = 0; index + 1 < y1.length; index++) {
+    res.push(y1.slice(0, index + 1).join("/"));
+  }
+  return res;
+};
+
+/**
+ * https://stackoverflow.com/questions/8609289
+ * @param b Buffer
+ * @returns ArrayBuffer
+ */
+export const bufferToArrayBuffer = (b: Buffer) => {
+  return b.buffer.slice(b.byteOffset, b.byteOffset + b.byteLength);
+};
+
+/**
+ * The Body of resp of aws GetObject has mix types
+ * and we want to get ArrayBuffer here.
+ * See https://github.com/aws/aws-sdk-js-v3/issues/1877
+ * @param b The Body of GetObject
+ * @returns Promise<ArrayBuffer>
+ */
+export const getObjectBodyToArrayBuffer = async (
+  b: Readable | ReadableStream | Blob
+) => {
+  if (b instanceof Readable) {
+    const chunks: Uint8Array[] = [];
+    for await (let chunk of b) {
+      chunks.push(chunk);
+    }
+    const buf = Buffer.concat(chunks);
+    return bufferToArrayBuffer(buf);
+  } else if (b instanceof ReadableStream) {
+    return await new Response(b, {}).arrayBuffer();
+  } else if (b instanceof Blob) {
+    return await b.arrayBuffer();
+  } else {
+    throw TypeError(`The type of ${b} is not one of the supported types`);
+  }
+};