Make the memory detection more resistant to locale issues

- Certain non-english characters aren't considered "Word characters" in
  Regex, so \S (any non-whitespace) is now accepted
- The `free` command is ran with `LANG=C` to force English output even
  on non-english systems
- If the match fails for any other reason, we simply return 0 bytes
  total/used (which is at least a valid number, even if it doesn't make
  sense)

src/backend/utils/os/processes/index.ts

@@ -3,6 +3,7 @@ import { ChildProcess, spawn } from 'child_process'
 type SpawnWrapperOptions = Partial<{
   onStdout: (data: string, child: ChildProcess) => unknown
   onStderr: (data: string, child: ChildProcess) => unknown
+  env: Record<string, string | undefined>
 }>
 
 interface SpawnWrapperReturn {
@@ -17,7 +18,7 @@ async function genericSpawnWrapper(
   args: string[] = [],
   options: SpawnWrapperOptions = {}
 ): Promise<SpawnWrapperReturn> {
-  const child = spawn(command, args)
+  const child = spawn(command, args, { env: options?.env })
   child.stdout.setEncoding('utf-8')
   child.stderr.setEncoding('utf-8')
 

src/backend/utils/systeminfo/memory/linux.ts

@@ -2,13 +2,15 @@ import type { PartialMemoryInfo } from './index'
 import { genericSpawnWrapper } from '../../os/processes'
 
 async function getMemoryInfo_linux(): Promise<PartialMemoryInfo> {
-  const { stdout } = await genericSpawnWrapper('free', ['-b'])
-  const match = stdout.match(/^\w*:\s*(\d*)\s*(\d*)/m)
+  const { stdout } = await genericSpawnWrapper('free', ['-b'], {
+    env: { ...process.env, LANG: 'C' }
+  })
+  const match = stdout.match(/^\S*:\s*(\d*)\s*(\d*)/m)
   const totalString = match?.[1]
   const usedString = match?.[2]
   return {
-    total: Number(totalString),
-    used: Number(usedString)
+    total: totalString ? Number(totalString) : 0,
+    used: usedString ? Number(usedString) : 0
   }
 }