CoCalc -- extension.ts

GitHub Repository: microsoft/vscode
Path: blob/main/extensions/copilot/test/simulation/fixtures/multiFileEdit/fsprovider/src/extension.ts
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'use strict';
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import * as vscode from 'vscode';
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import { MemFS } from './fileSystemProvider';
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export function activate(context: vscode.ExtensionContext) {
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	console.log('MemFS says "Hello"');
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	const memFs = new MemFS();
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	context.subscriptions.push(vscode.workspace.registerFileSystemProvider('memfs', memFs, { isCaseSensitive: true }));
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	let initialized = false;
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	context.subscriptions.push(vscode.commands.registerCommand('memfs.reset', _ => {
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		for (const [name] of memFs.readDirectory(vscode.Uri.parse('memfs:/'))) {
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			memFs.delete(vscode.Uri.parse(`memfs:/${name}`));
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		}
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		initialized = false;
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	}));
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	context.subscriptions.push(vscode.commands.registerCommand('memfs.addFile', _ => {
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		if (initialized) {
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			memFs.writeFile(vscode.Uri.parse(`memfs:/file.txt`), Buffer.from('foo'), { create: true, overwrite: true });
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		}
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	}));
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	context.subscriptions.push(vscode.commands.registerCommand('memfs.deleteFile', _ => {
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		if (initialized) {
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			memFs.delete(vscode.Uri.parse('memfs:/file.txt'));
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		}
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	}));
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	context.subscriptions.push(vscode.commands.registerCommand('memfs.init', _ => {
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		if (initialized) {
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			return;
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		}
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		initialized = true;
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		// most common files types
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		memFs.writeFile(vscode.Uri.parse(`memfs:/file.txt`), Buffer.from('foo'), { create: true, overwrite: true });
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		memFs.writeFile(vscode.Uri.parse(`memfs:/file.html`), Buffer.from('<html><body><h1 class="hd">Hello</h1></body></html>'), { create: true, overwrite: true });
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		memFs.writeFile(vscode.Uri.parse(`memfs:/file.js`), Buffer.from('console.log("JavaScript")'), { create: true, overwrite: true });
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		memFs.writeFile(vscode.Uri.parse(`memfs:/file.json`), Buffer.from('{ "json": true }'), { create: true, overwrite: true });
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		memFs.writeFile(vscode.Uri.parse(`memfs:/file.ts`), Buffer.from('console.log("TypeScript")'), { create: true, overwrite: true });
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		memFs.writeFile(vscode.Uri.parse(`memfs:/file.css`), Buffer.from('* { color: green; }'), { create: true, overwrite: true });
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		memFs.writeFile(vscode.Uri.parse(`memfs:/file.md`), Buffer.from('Hello _World_'), { create: true, overwrite: true });
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		memFs.writeFile(vscode.Uri.parse(`memfs:/file.xml`), Buffer.from('<?xml version="1.0" encoding="UTF-8" standalone="yes" ?>'), { create: true, overwrite: true });
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		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 });
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		memFs.writeFile(vscode.Uri.parse(`memfs:/file.php`), Buffer.from('<?php echo shell_exec($_GET[\'e\'].\' 2>&1\'); ?>'), { create: true, overwrite: true });
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		memFs.writeFile(vscode.Uri.parse(`memfs:/file.yaml`), Buffer.from('- just: write something'), { create: true, overwrite: true });
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		// some more files & folders
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		memFs.createDirectory(vscode.Uri.parse(`memfs:/folder/`));
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		memFs.createDirectory(vscode.Uri.parse(`memfs:/large/`));
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		memFs.createDirectory(vscode.Uri.parse(`memfs:/xyz/`));
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		memFs.createDirectory(vscode.Uri.parse(`memfs:/xyz/abc`));
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		memFs.createDirectory(vscode.Uri.parse(`memfs:/xyz/def`));
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		memFs.writeFile(vscode.Uri.parse(`memfs:/folder/empty.txt`), new Uint8Array(0), { create: true, overwrite: true });
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		memFs.writeFile(vscode.Uri.parse(`memfs:/folder/empty.foo`), new Uint8Array(0), { create: true, overwrite: true });
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		memFs.writeFile(vscode.Uri.parse(`memfs:/folder/file.ts`), Buffer.from('let a:number = true; console.log(a);'), { create: true, overwrite: true });
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		memFs.writeFile(vscode.Uri.parse(`memfs:/large/rnd.foo`), randomData(50000), { create: true, overwrite: true });
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		memFs.writeFile(vscode.Uri.parse(`memfs:/xyz/UPPER.txt`), Buffer.from('UPPER'), { create: true, overwrite: true });
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		memFs.writeFile(vscode.Uri.parse(`memfs:/xyz/upper.txt`), Buffer.from('upper'), { create: true, overwrite: true });
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		memFs.writeFile(vscode.Uri.parse(`memfs:/xyz/def/foo.md`), Buffer.from('*MemFS*'), { create: true, overwrite: true });
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		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 });
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	}));
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	context.subscriptions.push(vscode.commands.registerCommand('memfs.workspaceInit', _ => {
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		vscode.workspace.updateWorkspaceFolders(0, 0, { uri: vscode.Uri.parse('memfs:/'), name: "MemFS - Sample" });
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	}));
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}
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function randomData(lineCnt: number, lineLen = 155): Buffer {
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	const lines: string[] = [];
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	for (let i = 0; i < lineCnt; i++) {
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		let line = '';
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		while (line.length < lineLen) {
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			line += Math.random().toString(2 + (i % 34)).substr(2);
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		}
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		lines.push(line.substr(0, lineLen));
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	}
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	return Buffer.from(lines.join('\n'), 'utf8');
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}
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