mirror of
https://github.com/microsoft/vscode-extension-samples.git
synced 2026-04-27 16:55:44 +08:00
93 lines
3.5 KiB
TypeScript
93 lines
3.5 KiB
TypeScript
/*---------------------------------------------------------
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* Copyright (C) Microsoft Corporation. All rights reserved.
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*--------------------------------------------------------*/
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'use strict';
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import * as vscode from 'vscode';
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import { posix } from 'path';
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export function activate(context: vscode.ExtensionContext) {
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// Command #1 - Check and show a JavaScript-file for a TypeScript-file
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// * shows how to derive a new uri from an existing uri
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// * shows how to check for existence of a file
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vscode.commands.registerCommand('fs/openJS', async function() {
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if (
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!vscode.window.activeTextEditor
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|| posix.extname(vscode.window.activeTextEditor.document.uri.path) !== '.ts'
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) {
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return vscode.window.showInformationMessage('Open a TypeScript file first');
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}
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const tsUri = vscode.window.activeTextEditor.document.uri;
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const jsPath = posix.join(tsUri.path, '..', posix.basename(tsUri.path, '.ts') + '.js');
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const jsUri = tsUri.with({ path: jsPath });
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try {
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await vscode.workspace.fs.stat(jsUri);
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vscode.window.showTextDocument(jsUri, { viewColumn: vscode.ViewColumn.Beside });
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} catch {
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vscode.window.showInformationMessage(`${jsUri.toString(true)} file does *not* exist`);
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}
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});
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// Command #2 - Compute total size of files in a folder
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// * shows how to read a directory
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// * shows how retrieve metadata for a file
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// * create an untitled document that shows count and total of files
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vscode.commands.registerCommand('fs/sumSizes', async function() {
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async function countAndTotalOfFilesInFolder(folder: vscode.Uri): Promise<{ total: number, count: number }> {
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let total = 0;
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let count = 0;
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for (const [name, type] of await vscode.workspace.fs.readDirectory(folder)) {
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if (type === vscode.FileType.File) {
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const filePath = posix.join(folder.path, name);
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const stat = await vscode.workspace.fs.stat(folder.with({ path: filePath }));
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total += stat.size;
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count += 1;
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}
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}
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return { total, count };
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}
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if (!vscode.window.activeTextEditor) {
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return vscode.window.showInformationMessage('Open a file first');
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}
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const fileUri = vscode.window.activeTextEditor.document.uri;
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const folderPath = posix.dirname(fileUri.path);
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const folderUri = fileUri.with({ path: folderPath });
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const info = await countAndTotalOfFilesInFolder(folderUri);
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const doc = await vscode.workspace.openTextDocument({ content: `${info.count} files in ${folderUri.toString(true)} with a total of ${info.total} bytes` });
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vscode.window.showTextDocument(doc, { viewColumn: vscode.ViewColumn.Beside });
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});
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// Command #3 - Write and read a file
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// * shows how to derive a new file-uri from a folder-uri
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// * shows how to convert a string into a typed array and back
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vscode.commands.registerCommand('fs/readWriteFile', async function() {
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if (!vscode.workspace.workspaceFolders) {
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return vscode.window.showInformationMessage('No folder or workspace opened');
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}
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const writeStr = '1€ is 1.12$ is 0.9£';
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const writeData = Buffer.from(writeStr, 'utf8');
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const folderUri = vscode.workspace.workspaceFolders[0].uri;
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const fileUri = folderUri.with({ path: posix.join(folderUri.path, 'test.txt') });
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await vscode.workspace.fs.writeFile(fileUri, writeData);
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const readData = await vscode.workspace.fs.readFile(fileUri);
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const readStr = Buffer.from(readData).toString('utf8');
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vscode.window.showInformationMessage(readStr);
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vscode.window.showTextDocument(fileUri);
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});
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}
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