Fixed an issue with calling an extra script located outside a project // Resolve #4220

HISTORY.rst

@@ -47,6 +47,7 @@ PlatformIO Core 5
 
   - Show project dependency licenses when building in the verbose mode
   - Fixed an issue when `LDF <https://docs.platformio.org/en/latest/librarymanager/ldf.html>`__ ignores the project `lib_deps <https://docs.platformio.org/en/latest/projectconf/section_env_library.html#lib-deps>`__ while resolving library dependencies (`issue #3598 <https://github.com/platformio/platformio-core/issues/3598>`_)
+  - Fixed an issue with calling an extra script located outside a project (`issue #4220 <https://github.com/platformio/platformio-core/issues/4220>`_)
 
 * **Integration**
 

platformio/builder/tools/piomisc.py

@@ -376,7 +376,7 @@ def GetExtraScripts(env, scope):
     if not items:
         return items
     with fs.cd(env.subst("$PROJECT_DIR")):
-        return [os.path.abspath(item) for item in items]
+        return [os.path.abspath(env.subst(item)) for item in items]
 
 
 def exists(_):