scripts: move to Pathlib

Signed-off-by: Frederic Pillon <frederic.pillon@st.com>

Author: fpistm

CI/utils/stm32common.py

@@ -1,43 +1,42 @@
-import os
 import re
 import shutil
 
 
 # Create a folder if not exists
 def createFolder(path):
     try:
-        if not os.path.exists(path):
-            os.makedirs(path)
+        if not path.exists():
+            path.mkdir()
     except OSError:
         print("Error: Creating directory. " + path)
 
 
 # Delete targeted folder recursively
 def deleteFolder(path):
-    if os.path.isdir(path):
+    if path.is_dir():
         shutil.rmtree(path, ignore_errors=True)
 
 
 # copy src folder recursively to dest
 def copyFolder(src, dest, ign_patt=set()):
     try:
-        if os.path.isdir(src):
+        if src.is_dir():
             shutil.copytree(src, dest, ignore=shutil.ignore_patterns(*ign_patt))
     except OSError as e:
         print("Error: Folder %s not copied. %s" % src, e)
 
 
 def genSTM32List(path, pattern):
     stm32_list = []  # Serie
-    dir_pattern = re.compile("^STM32(.*)xx_HAL_Driver$", re.IGNORECASE)
+    dir_pattern = re.compile(r"^STM32(.*)xx_HAL_Driver$", re.IGNORECASE)
 
     if pattern is not None:
         serie_pattern = re.compile(pattern, re.IGNORECASE)
     else:
         serie_pattern = re.compile(".*", re.IGNORECASE)
 
-    for file in os.listdir(path):
-        res = dir_pattern.match(file)
+    for file in path.iterdir():
+        res = dir_pattern.match(file.name)
         if res and serie_pattern.search(res.group(1)):
             stm32_list.append(res.group(1))
     stm32_list.sort()