🔨 Minor build script changes

buildroot/share/PlatformIO/scripts/common-dependencies.py

 					feat['lib_deps'] = list(filter(lib_re.match, feat['lib_deps'])) + [dep]
 					blab("[%s] lib_deps = %s" % (feature, dep), 3)
 
-	def load_config():
+	def load_features():
 		blab("========== Gather [features] entries...")
-		items = ProjectConfig().items('features')
-		for key in items:
+		for key in ProjectConfig().items('features'):
 			feature = key[0].upper()
 			if not feature in FEATURE_CONFIG:
 				FEATURE_CONFIG[feature] = { 'lib_deps': [] }
 
 		# Add options matching custom_marlin.MY_OPTION to the pile
 		blab("========== Gather custom_marlin entries...")
-		all_opts = env.GetProjectOptions()
-		for n in all_opts:
+		for n in env.GetProjectOptions():
 			key = n[0]
 			mat = re.match(r'custom_marlin\.(.+)', key)
 			if mat:
 		set_env_field('lib_ignore', lib_ignore)
 
 	def apply_features_config():
-		load_config()
+		load_features()
 		blab("========== Apply enabled features...")
 		for feature in FEATURE_CONFIG:
-			if not env.MarlinFeatureIsEnabled(feature):
+			if not env.MarlinHas(feature):
 				continue
 
 			feat = FEATURE_CONFIG[feature]
 	#
 	# Return True if a matching feature is enabled
 	#
-	def MarlinFeatureIsEnabled(env, feature):
+	def MarlinHas(env, feature):
 		load_marlin_features()
 		r = re.compile('^' + feature + '$')
 		found = list(filter(r.match, env['MARLIN_FEATURES']))
 				if val in [ '', '1', 'true' ]:
 					some_on = True
 				elif val in env['MARLIN_FEATURES']:
-					some_on = env.MarlinFeatureIsEnabled(val)
+					some_on = env.MarlinHas(val)
 
 		return some_on
 
 	#
 	# Add a method for other PIO scripts to query enabled features
 	#
-	env.AddMethod(MarlinFeatureIsEnabled)
+	env.AddMethod(MarlinHas)
 
 	#
 	# Add dependencies for enabled Marlin features

buildroot/share/PlatformIO/scripts/fix_framework_weakness.py

 
 	Import("env")
 
-	if env.MarlinFeatureIsEnabled("POSTMORTEM_DEBUGGING"):
+	if env.MarlinHas("POSTMORTEM_DEBUGGING"):
 		FRAMEWORK_DIR = env.PioPlatform().get_package_dir("framework-arduinoststm32-maple")
 		patchflag_path = join(FRAMEWORK_DIR, ".exc-patching-done")
 

buildroot/share/PlatformIO/scripts/preprocessor.py

 	depcmd = cmd + [ filename ]
 	cmd = ' '.join(depcmd)
 	blab(cmd)
-	define_list = subprocess.check_output(cmd, shell=True).splitlines()
+	try:
+		define_list = subprocess.check_output(cmd, shell=True).splitlines()
+	except:
+		define_list = {}
 	preprocessor_cache[filename] = define_list
 	return define_list
 

docs/ConfigEmbedding.md

 # Configuration Embedding
 
-Starting with version 2.0.9.3, Marlin automatically extracts the configuration used to generate the firmware and stores it in the firmware binary. This is enabled by defining `CONFIGURATION_EMBEDDING` in `Configuration_adv.h`.
+Starting with version 2.0.9.3, Marlin can automatically extract the configuration used to generate the firmware and store it in the firmware binary. This is enabled by defining `CONFIGURATION_EMBEDDING` in `Configuration_adv.h`.
 
 ## How it's done
-To create the embedded configuration, we do a compiler pass to process the Configuration files and extract all active options. The active options are parsed into key/value pairs, serialized to JSON format, and stored in a file called `marlin_config.json`, which also includes specific build information (like the git revision, the build date, and some version information. The JSON file is then compressed in a ZIP archive called `.pio/build/mc.zip` which is converted into a C array and stored in a C++ file called `mc.h` which is included in the build.
+At the start of the PlatformIO build process, we create an embedded configuration by extracting all active options from the Configuration files and writing them out as JSON to `marlin_config.json`, which also includes specific build information (like the git revision, the build date, and some version information. The JSON file is then compressed in a ZIP archive called `.pio/build/mc.zip` which is converted into a C array and stored in a C++ file called `mc.h` which is included in the build.
 
 ## Extracting configurations from a Marlin binary
 To get the configuration out of a binary firmware, you'll need a non-write-protected SD card inserted into the printer while running the firmware.