lib: assign localAppData and programFiles from env

These paths may be localized to other languages,
or placed on another drive.

(These paths appear to be mostly standardized on Windows 10,
but supposedly they were more flexible (or were located elsewhere)
on some older version(s) of Windows.)

Author: DeeDeeG

lib/find-python.js

@@ -8,16 +8,19 @@ const win = process.platform === 'win32'
 const logWithPrefix = require('./util').logWithPrefix
 
 const systemDrive = process.env.SystemDrive || 'C:'
+const programFiles = process.env.ProgramFiles || `${systemDrive}\\Program Files`
+const programFilesX86 = process.env['ProgramFiles(x86)'] || `${programFiles} (x86)`
 const username = process.env.USERNAME || process.env.USER
-const winDefaultLocationsArray = []
+const localAppData = process.env.LOCALAPPDATA || `${systemDrive}\\${username}\\AppData\\Local`
 
+const winDefaultLocationsArray = []
 for (const majorMinor of ['39', '38', '37', '36']) {
   winDefaultLocationsArray.push(
-    `${systemDrive}\\Users\\${username}\\AppData\\Local\\Programs\\Python\\Python${majorMinor}\\python.exe`,
-    `${systemDrive}\\Program Files\\Python${majorMinor}\\python.exe`,
-    `${systemDrive}\\Users\\${username}\\AppData\\Local\\Programs\\Python\\Python${majorMinor}-32\\python.exe`,
-    `${systemDrive}\\Program Files\\Python${majorMinor}-32\\python.exe`,
-    `${systemDrive}\\Program Files (x86)\\Python${majorMinor}-32\\python.exe`
+    `${localAppData}\\Programs\\Python\\Python${majorMinor}\\python.exe`,
+    `${programFiles}\\Python${majorMinor}\\python.exe`,
+    `${localAppData}\\Programs\\Python\\Python${majorMinor}-32\\python.exe`,
+    `${programFiles}\\Python${majorMinor}-32\\python.exe`,
+    `${programFilesX86}\\Python${majorMinor}-32\\python.exe`
   )
 }