Refine building wheel

jondy · jondy · commit 817eeee6c93c · 2021-12-16T08:44:02.000+08:00
diff --git a/docs/build-wheel.rst b/docs/build-wheel.rst
@@ -45,6 +45,18 @@ Build a pyarmored wheel by same commands::
     cd mypkg/
     pip wheel .
 
+Or build a pyarmored wheel with :ref:`Super Mode` by setting extra obfuscation
+options in environment variable ``PIP_PYARMOR_OPTIONS``::
+
+    cd mypkg/
+
+    # In Windows
+    set PIP_PYARMOR_OPTIONS=--advanced 2
+    pip wheel .
+
+    # In Linux or MacOs
+    PIP_PYARMOR_OPTIONS="--advanced 2" pip wheel .
+
 ``pyarmor.build_meta`` also supports pip configuration ``pyarmor.advanced`` to
 build a pyarmored wheel with :ref:`Super Mode`.
 
@@ -59,7 +71,7 @@ Then::
 
 Removing this configuration by this way::
 
-  pip config unset pyarmor.advanced
+    pip config unset pyarmor.advanced
 
 How does it work
 ----------------
diff --git a/src/build_meta.py b/src/build_meta.py
@@ -69,11 +69,13 @@ def _wheel_append_runtime_files(build_path, namever, pkgname):
 
 
 def _fix_config(config_settings, obf_options):
-    from pip._internal.configuration import Configuration
+    from pip._internal.configuration import Configuration, ConfigurationError
     config = Configuration(False)
     config.load()
-    for k, v in config.items():
+    for k, v in reversed(config.items()):
         if k in ('pyarmor.advanced', ':env:.pyarmor-advanced'):
+            if v not in ('2', '3', '4', '5'):
+                raise ConfigurationError('Invalid pyarmor.advanced')
             obf_options.extend(['--advanced', v])
             break
 
