52 lines
1.7 KiB
JavaScript
52 lines
1.7 KiB
JavaScript
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import {run as defaultRun} from './bin.js';
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import {parse} from './parse.js';
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// PowerShell command used to list every process as "<ppid> <pid>" lines.
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// Get-CimInstance is the supported replacement for the removed wmic utility
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// (see https://github.com/simonepri/pidtree/issues/20). $ProgressPreference is
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// silenced so PowerShell does not serialize its progress stream to stderr.
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const COMMAND =
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"$ProgressPreference = 'SilentlyContinue'; " +
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'Get-CimInstance -ClassName Win32_Process | ' +
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'ForEach-Object { "$($_.ParentProcessId) $($_.ProcessId)" }';
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// The command is passed through -EncodedCommand (Base64 of the UTF-16LE
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// string) to avoid any cross-shell argument quoting issues on Windows.
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const ENCODED = Buffer.from(COMMAND, 'utf16le').toString('base64');
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/**
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* Gets the list of all the pids of the system through PowerShell.
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* Used as a fallback on Windows installations where wmic is not available
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* (e.g. Windows 11 24H2 and Windows Server 2025).
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* @param {Function} callback callback(err, list)
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* @param {Function} [run] Injectable spawner, used for testing.
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*/
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export function powershell(callback, run = defaultRun) {
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const args = ['-NoProfile', '-NonInteractive', '-EncodedCommand', ENCODED];
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const options = {windowsHide: true};
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// Example of stdout
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//
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// 0 777
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// 777 778
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run('powershell', args, options, (error, stdout, code) => {
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if (error) {
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callback(error);
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return;
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}
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if (code !== 0) {
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callback(
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new Error('pidtree powershell command exited with code ' + code),
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);
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return;
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}
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try {
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callback(null, parse(stdout));
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} catch (error) {
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callback(error);
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}
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});
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}
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