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Remove Node.js API dependencies (Buffer, path module)

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- Replace Buffer with Uint8Array and TextEncoder
- Replace path module with native string manipulation
- Replace NodeJS.Timeout with ReturnType<typeof setTimeout>

Fixes microsoft/vscode-extension-samples#550
This commit is contained in:
Johannes
2025-12-09 15:59:18 +01:00
parent 5839b5c233
commit f31c838a3f
2 changed files with 29 additions and 28 deletions
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40
fsprovider-sample/src/extension.ts
View File

@ -1,6 +1,8 @@
import * as vscode from 'vscode';
import { MemFS } from './fileSystemProvider';
const encoder = new TextEncoder();
export function activate(context: vscode.ExtensionContext) {
console.log('MemFS says "Hello"');
@ -18,7 +20,7 @@ export function activate(context: vscode.ExtensionContext) {
context.subscriptions.push(vscode.commands.registerCommand('memfs.addFile', _ => {
if (initialized) {
memFs.writeFile(vscode.Uri.parse(`memfs:/file.txt`), Buffer.from('foo'), { create: true, overwrite: true });
memFs.writeFile(vscode.Uri.parse(`memfs:/file.txt`), encoder.encode('foo'), { create: true, overwrite: true });
}
}));
@ -35,17 +37,17 @@ export function activate(context: vscode.ExtensionContext) {
initialized = true;
// most common files types
memFs.writeFile(vscode.Uri.parse(`memfs:/file.txt`), Buffer.from('foo'), { create: true, overwrite: true });
memFs.writeFile(vscode.Uri.parse(`memfs:/file.html`), Buffer.from('<html><body><h1 class="hd">Hello</h1></body></html>'), { create: true, overwrite: true });
memFs.writeFile(vscode.Uri.parse(`memfs:/file.js`), Buffer.from('console.log("JavaScript")'), { create: true, overwrite: true });
memFs.writeFile(vscode.Uri.parse(`memfs:/file.json`), Buffer.from('{ "json": true }'), { create: true, overwrite: true });
memFs.writeFile(vscode.Uri.parse(`memfs:/file.ts`), Buffer.from('console.log("TypeScript")'), { create: true, overwrite: true });
memFs.writeFile(vscode.Uri.parse(`memfs:/file.css`), Buffer.from('* { color: green; }'), { create: true, overwrite: true });
memFs.writeFile(vscode.Uri.parse(`memfs:/file.md`), Buffer.from('Hello _World_'), { create: true, overwrite: true });
memFs.writeFile(vscode.Uri.parse(`memfs:/file.xml`), Buffer.from('<?xml version="1.0" encoding="UTF-8" standalone="yes" ?>'), { create: true, overwrite: true });
memFs.writeFile(vscode.Uri.parse(`memfs:/file.py`), Buffer.from('import base64, sys; base64.decode(open(sys.argv[1], "rb"), open(sys.argv[2], "wb"))'), { create: true, overwrite: true });
memFs.writeFile(vscode.Uri.parse(`memfs:/file.php`), Buffer.from('<?php echo shell_exec($_GET[\'e\'].\' 2>&1\'); ?>'), { create: true, overwrite: true });
memFs.writeFile(vscode.Uri.parse(`memfs:/file.yaml`), Buffer.from('- just: write something'), { create: true, overwrite: true });
memFs.writeFile(vscode.Uri.parse(`memfs:/file.txt`), encoder.encode('foo'), { create: true, overwrite: true });
memFs.writeFile(vscode.Uri.parse(`memfs:/file.html`), encoder.encode('<html><body><h1 class="hd">Hello</h1></body></html>'), { create: true, overwrite: true });
memFs.writeFile(vscode.Uri.parse(`memfs:/file.js`), encoder.encode('console.log("JavaScript")'), { create: true, overwrite: true });
memFs.writeFile(vscode.Uri.parse(`memfs:/file.json`), encoder.encode('{ "json": true }'), { create: true, overwrite: true });
memFs.writeFile(vscode.Uri.parse(`memfs:/file.ts`), encoder.encode('console.log("TypeScript")'), { create: true, overwrite: true });
memFs.writeFile(vscode.Uri.parse(`memfs:/file.css`), encoder.encode('* { color: green; }'), { create: true, overwrite: true });
memFs.writeFile(vscode.Uri.parse(`memfs:/file.md`), encoder.encode('Hello _World_'), { create: true, overwrite: true });
memFs.writeFile(vscode.Uri.parse(`memfs:/file.xml`), encoder.encode('<?xml version="1.0" encoding="UTF-8" standalone="yes" ?>'), { create: true, overwrite: true });
memFs.writeFile(vscode.Uri.parse(`memfs:/file.py`), encoder.encode('import base64, sys; base64.decode(open(sys.argv[1], "rb"), open(sys.argv[2], "wb"))'), { create: true, overwrite: true });
memFs.writeFile(vscode.Uri.parse(`memfs:/file.php`), encoder.encode('<?php echo shell_exec($_GET[\'e\'].\' 2>&1\'); ?>'), { create: true, overwrite: true });
memFs.writeFile(vscode.Uri.parse(`memfs:/file.yaml`), encoder.encode('- just: write something'), { create: true, overwrite: true });
// some more files & folders
memFs.createDirectory(vscode.Uri.parse(`memfs:/folder/`));
@ -56,12 +58,12 @@ export function activate(context: vscode.ExtensionContext) {
memFs.writeFile(vscode.Uri.parse(`memfs:/folder/empty.txt`), new Uint8Array(0), { create: true, overwrite: true });
memFs.writeFile(vscode.Uri.parse(`memfs:/folder/empty.foo`), new Uint8Array(0), { create: true, overwrite: true });
memFs.writeFile(vscode.Uri.parse(`memfs:/folder/file.ts`), Buffer.from('let a:number = true; console.log(a);'), { create: true, overwrite: true });
memFs.writeFile(vscode.Uri.parse(`memfs:/folder/file.ts`), encoder.encode('let a:number = true; console.log(a);'), { create: true, overwrite: true });
memFs.writeFile(vscode.Uri.parse(`memfs:/large/rnd.foo`), randomData(50000), { create: true, overwrite: true });
memFs.writeFile(vscode.Uri.parse(`memfs:/xyz/UPPER.txt`), Buffer.from('UPPER'), { create: true, overwrite: true });
memFs.writeFile(vscode.Uri.parse(`memfs:/xyz/upper.txt`), Buffer.from('upper'), { create: true, overwrite: true });
memFs.writeFile(vscode.Uri.parse(`memfs:/xyz/def/foo.md`), Buffer.from('*MemFS*'), { create: true, overwrite: true });
memFs.writeFile(vscode.Uri.parse(`memfs:/xyz/def/foo.bin`), Buffer.from([0, 0, 0, 1, 7, 0, 0, 1, 1]), { create: true, overwrite: true });
memFs.writeFile(vscode.Uri.parse(`memfs:/xyz/UPPER.txt`), encoder.encode('UPPER'), { create: true, overwrite: true });
memFs.writeFile(vscode.Uri.parse(`memfs:/xyz/upper.txt`), encoder.encode('upper'), { create: true, overwrite: true });
memFs.writeFile(vscode.Uri.parse(`memfs:/xyz/def/foo.md`), encoder.encode('*MemFS*'), { create: true, overwrite: true });
memFs.writeFile(vscode.Uri.parse(`memfs:/xyz/def/foo.bin`), new Uint8Array([0, 0, 0, 1, 7, 0, 0, 1, 1]), { create: true, overwrite: true });
}));
context.subscriptions.push(vscode.commands.registerCommand('memfs.workspaceInit', _ => {
@ -69,7 +71,7 @@ export function activate(context: vscode.ExtensionContext) {
}));
}
function randomData(lineCnt: number, lineLen = 155): Buffer {
function randomData(lineCnt: number, lineLen = 155): Uint8Array {
const lines: string[] = [];
for (let i = 0; i < lineCnt; i++) {
let line = '';
@ -78,5 +80,5 @@ function randomData(lineCnt: number, lineLen = 155): Buffer {
}
lines.push(line.substr(0, lineLen));
}
return Buffer.from(lines.join('\n'), 'utf8');
return encoder.encode(lines.join('\n'));
}

17
fsprovider-sample/src/fileSystemProvider.ts
View File

@ -4,7 +4,6 @@
*--------------------------------------------------------------------------------------------*/
import * as path from 'path';
import * as vscode from 'vscode';
export class File implements vscode.FileStat {
@ -78,7 +77,7 @@ export class MemFS implements vscode.FileSystemProvider {
}
writeFile(uri: vscode.Uri, content: Uint8Array, options: { create: boolean, overwrite: boolean }): void {
const basename = path.posix.basename(uri.path);
const basename = uri.path.split('/').pop()!;
const parent = this._lookupParentDirectory(uri);
let entry = parent.entries.get(basename);
if (entry instanceof Directory) {
@ -114,7 +113,7 @@ export class MemFS implements vscode.FileSystemProvider {
const oldParent = this._lookupParentDirectory(oldUri);
const newParent = this._lookupParentDirectory(newUri);
const newName = path.posix.basename(newUri.path);
const newName = newUri.path.split('/').pop()!;
oldParent.entries.delete(entry.name);
entry.name = newName;
@ -127,8 +126,8 @@ export class MemFS implements vscode.FileSystemProvider {
}
delete(uri: vscode.Uri): void {
const dirname = uri.with({ path: path.posix.dirname(uri.path) });
const basename = path.posix.basename(uri.path);
const dirname = uri.with({ path: uri.path.substring(0, uri.path.lastIndexOf('/')) });
const basename = uri.path.split('/').pop()!;
const parent = this._lookupAsDirectory(dirname, false);
if (!parent.entries.has(basename)) {
throw vscode.FileSystemError.FileNotFound(uri);
@ -140,8 +139,8 @@ export class MemFS implements vscode.FileSystemProvider {
}
createDirectory(uri: vscode.Uri): void {
const basename = path.posix.basename(uri.path);
const dirname = uri.with({ path: path.posix.dirname(uri.path) });
const basename = uri.path.split('/').pop()!;
const dirname = uri.with({ path: uri.path.substring(0, uri.path.lastIndexOf('/')) });
const parent = this._lookupAsDirectory(dirname, false);
const entry = new Directory(basename);
@ -195,7 +194,7 @@ export class MemFS implements vscode.FileSystemProvider {
}
private _lookupParentDirectory(uri: vscode.Uri): Directory {
const dirname = uri.with({ path: path.posix.dirname(uri.path) });
const dirname = uri.with({ path: uri.path.substring(0, uri.path.lastIndexOf('/')) });
return this._lookupAsDirectory(dirname, false);
}
@ -203,7 +202,7 @@ export class MemFS implements vscode.FileSystemProvider {
private _emitter = new vscode.EventEmitter<vscode.FileChangeEvent[]>();
private _bufferedEvents: vscode.FileChangeEvent[] = [];
private _fireSoonHandle?: NodeJS.Timeout;
private _fireSoonHandle?: ReturnType<typeof setTimeout>;
readonly onDidChangeFile: vscode.Event<vscode.FileChangeEvent[]> = this._emitter.event;