Vihren Atlas

src/vs/base/node/shell.ts

70 LOC · 19 covered · 51 uncovered · 3 ranges · 2279 concepts · 1 introducers · 1070 tests

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1 > /*--------------------------------------------------------------------------------------------- shell.ts ×3
2 > * Copyright (c) Microsoft Corporation. All rights reserved.
3 > * Licensed under the MIT License. See License.txt in the project root for license information.
4 > *--------------------------------------------------------------------------------------------*/
5 >
6 > import { userInfo } from 'os';
7 > import * as platform from '../common/platform.js';
8 > import { getFirstAvailablePowerShellInstallation } from './powershell.js';
9 > import * as processes from './processes.js';
10 >
11 > /**
12 > * Gets the detected default shell for the _system_, not to be confused with VS Code's _default_
13 > * shell that the terminal uses by default.
14 > * @param os The platform to detect the shell of.
15 > */
16 export async function getSystemShell(os: platform.OperatingSystem, env: platform.IProcessEnvironment): Promise<string> {
17 if (os === platform.OperatingSystem.Windows) {
18 if (platform.isWindows) {
19 return getSystemShellWindows();
20 }
21 // Don't detect Windows shell when not on Windows
22 return processes.getWindowsShell(env);
23 }
24
25 return getSystemShellUnixLike(os, env);
26 }
27 > shell.ts ×3
28 > let _TERMINAL_DEFAULT_SHELL_UNIX_LIKE: string | null = null;
29 function getSystemShellUnixLike(os: platform.OperatingSystem, env: platform.IProcessEnvironment): string {
30 // Only use $SHELL for the current OS
31 if (platform.isLinux && os === platform.OperatingSystem.Macintosh || platform.isMacintosh && os === platform.OperatingSystem.Linux) {
32 return '/bin/bash';
33 }
34
35 if (!_TERMINAL_DEFAULT_SHELL_UNIX_LIKE) {
36 let unixLikeTerminal: string | undefined | null;
37 if (platform.isWindows) {
38 unixLikeTerminal = '/bin/bash'; // for WSL
39 } else {
40 unixLikeTerminal = env['SHELL'];
41
42 if (!unixLikeTerminal) {
43 try {
44 // It's possible for $SHELL to be unset, this API reads /etc/passwd. See https://github.com/github/codespaces/issues/1639
45 // Node docs: "Throws a SystemError if a user has no username or homedir."
46 unixLikeTerminal = userInfo().shell;
47 } catch (err) { }
48 }
49
50 if (!unixLikeTerminal) {
51 unixLikeTerminal = 'sh';
52 }
53
54 // Some systems have $SHELL set to /bin/false which breaks the terminal
55 if (unixLikeTerminal === '/bin/false') {
56 unixLikeTerminal = '/bin/bash';
57 }
58 }
59 _TERMINAL_DEFAULT_SHELL_UNIX_LIKE = unixLikeTerminal;
60 }
61 return _TERMINAL_DEFAULT_SHELL_UNIX_LIKE;
62 }
63 > shell.ts ×3
64 > let _TERMINAL_DEFAULT_SHELL_WINDOWS: string | null = null;
65 async function getSystemShellWindows(): Promise<string> {
66 if (!_TERMINAL_DEFAULT_SHELL_WINDOWS) {
67 _TERMINAL_DEFAULT_SHELL_WINDOWS = (await getFirstAvailablePowerShellInstallation())!.exePath;
68 }
69 return _TERMINAL_DEFAULT_SHELL_WINDOWS;
70 }