Add OS check, PS script (unfinished)

Added a check for your operating system and a PowerShell script which is unfinished at the moment.

utils/envUpdate.py

@@ -1,18 +1,30 @@
 import os
 import subprocess
 import tempfile
-from os import path
 import logging
 
-log = logging.getLogger(__name__)
+from os import path
+from sys import platform
 
+log = logging.getLogger(__name__)
 
 def envUpdate():
     if path.exists(".env.template"):
-        envTemplate = subprocess.check_output(
-            "awk -F '=' 'NF {print $1}' .env.template | grep --regexp=^[a-zA-Z]",  # noqa
-            shell=True,
-        )
+        if platform == "win32" or platform == "cygwin":
+            #envTemplate = subprocess.run(
+            #    [r'C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe',
+            #    r'.\envUpdateWin.ps1'],
+            #    stdout=subprocess.PIPE, stderr=subprocess.STDOUT,
+            #    shell=True
+            #)
+            print("Updating is not yet supported on Windows.")
+            return
+        elif platform == "darwin" or platform == "linux":
+            envTemplate = subprocess.check_output(
+                "awk -F '=' 'NF {print $1}' .env.template | grep --regexp=^[a-zA-Z]",
+                shell=True,
+            )
+            return
         tempEnv = tempfile.TemporaryFile()
         tempEnv.write(envTemplate)
         tempEnv.seek(0)

utils/envUpdateWin.ps1

@@ -0,0 +1,2 @@
+$envVars = Get-Content '.\.env'
+$envVars -split "="