windows process information

desktop/scripts/util/process-utils.js

@@ -2,24 +2,44 @@ const childProcess = require('child_process');
 
 function getProcessInfo(pid) {
     return new Promise((resolve, reject) => {
-        const process = childProcess.spawn('/bin/ps', ['-opid=,ppid=,command=', '-p', pid]);
+        let cmd, args, parseOutput;
+        if (process.platform === 'win32') {
+            cmd = 'wmic';
+            args = [
+                'process',
+                'where',
+                `ProcessId=${pid}`,
+                'get',
+                'ProcessId,ParentProcessId,CommandLine',
+                '/format:value'
+            ];
+            parseOutput = parseWmicOutput;
+        } else {
+            cmd = '/bin/ps';
+            args = ['-opid=,ppid=,command=', '-p', pid];
+            parseOutput = parsePsOutput;
+        }
+        const ps = childProcess.spawn(cmd, args);
 
         const data = [];
-        process.stdout.on('data', (chunk) => data.push(chunk));
+        ps.stdout.on('data', (chunk) => data.push(chunk));
 
-        process.on('close', () => {
+        ps.on('close', () => {
             const output = Buffer.concat(data).toString();
             try {
-                const result = parsePsOutput(output);
+                const result = parseOutput(output);
                 if (result.pid !== pid) {
-                    throw new Error(`PS pid mismatch: ${result.pid} <> ${pid}`);
+                    throw new Error(`PID mismatch: ${result.pid} <> ${pid}`);
+                }
+                if (!result.commandLine) {
+                    throw new Error(`Could not get command line for process ${pid}`);
                 }
                 resolve(result);
             } catch (e) {
                 reject(e);
             }
         });
-        process.on('error', (e) => {
+        ps.on('error', (e) => {
             reject(e);
         });
     });
@@ -37,4 +57,24 @@ function parsePsOutput(output) {
     };
 }
 
+function parseWmicOutput(output) {
+    const result = {};
+    const keyMap = {
+        ProcessId: 'pid',
+        ParentProcessId: 'parentPid',
+        CommandLine: 'commandLine'
+    };
+    for (const line of output.split(/\n/)) {
+        const match = line.trim().match(/^([^=]+)=(.*)$/);
+        if (match) {
+            const [, key, value] = match;
+            const mapped = keyMap[key];
+            if (mapped) {
+                result[mapped] = mapped.endsWith('id') ? value | 0 : value;
+            }
+        }
+    }
+    return result;
+}
+
 module.exports = { getProcessInfo };