Revert "Revert "Revert "Revert "Only download & compile required libr…

…aries (MarlinFirmware#18699)""""

This reverts commit 702ca04.

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

@@ -0,0 +1,135 @@
+#
+# common-features-dependencies.py
+# Convenience script to check dependencies and add libs and sources for Marlin Enabled Features
+#
+import subprocess
+import os
+import re
+try:
+    import configparser
+except ImportError:
+    import ConfigParser as configparser
+from platformio.managers.package import PackageManager
+
+Import("env")
+
+FEATURE_DEPENDENCIES = {}
+
+def load_config():
+	config = configparser.ConfigParser()
+	config.read("platformio.ini")
+	items = config.items('features')
+	for key in items:
+		deps = re.sub(',\\s*', '\n', key[1]).strip().split('\n')
+		if not key[0].upper() in FEATURE_DEPENDENCIES:
+			FEATURE_DEPENDENCIES[key[0].upper()] = {
+				'lib_deps': []
+			}
+		for dep in deps:
+			parts = dep.split('=')
+			name = parts.pop(0)
+			rest = '='.join(parts)
+			if name == 'extra_scripts':
+				FEATURE_DEPENDENCIES[key[0].upper()]['extra_scripts'] = rest
+			elif name == 'src_filter':
+				FEATURE_DEPENDENCIES[key[0].upper()]['src_filter'] = rest
+			else:
+				FEATURE_DEPENDENCIES[key[0].upper()]['lib_deps'] += [dep]
+
+def install_features_dependencies():
+	load_config()
+	for feature in FEATURE_DEPENDENCIES:
+		if not env.MarlinFeatureIsEnabled(feature):
+			continue
+
+		if 'lib_deps' in FEATURE_DEPENDENCIES[feature]:
+			print("Adding lib_deps for %s... " % feature)
+
+			# deps to add
+			deps_to_add = {}
+			for dep in FEATURE_DEPENDENCIES[feature]['lib_deps']:
+				name, _, _ = PackageManager.parse_pkg_uri(dep)
+				deps_to_add[name] = dep
+
+			# first check if the env already have the dep
+			deps = env.GetProjectOption("lib_deps")
+			for dep in deps:
+				name, _, _ = PackageManager.parse_pkg_uri(dep)
+				if name in deps_to_add:
+					del deps_to_add[name]
+
+			# check if we need ignore any lib
+			lib_ignore = env.GetProjectOption("lib_ignore")
+			for dep in deps:
+				name, _, _ = PackageManager.parse_pkg_uri(dep)
+				if name in deps_to_add:
+					del deps_to_add[name]
+
+			# any left?
+			if len(deps_to_add) <= 0:
+				continue
+
+			# add only the missing deps
+			proj = env.GetProjectConfig()
+			proj.set("env:" + env["PIOENV"], "lib_deps", deps + list(deps_to_add.values()))
+
+		if 'extra_scripts' in FEATURE_DEPENDENCIES[feature]:
+			print("Executing extra_scripts for %s... " % feature)
+			env.SConscript(FEATURE_DEPENDENCIES[feature]['extra_scripts'], exports="env")
+
+		if 'src_filter' in FEATURE_DEPENDENCIES[feature]:
+			print("Adding src_filter for %s... " % feature)
+			proj = env.GetProjectConfig()
+			src_filter = env.GetProjectOption("src_filter")
+
+			# first we need to remove the references to the same folder
+			my_srcs = re.findall( r'[+-](<.*?>)', FEATURE_DEPENDENCIES[feature]['src_filter'])
+			cur_srcs = re.findall( r'[+-](<.*?>)', src_filter[0])
+			for d in my_srcs:
+				if d in cur_srcs:
+					src_filter[0] = re.sub(r'[+-]' + d, '', src_filter[0])
+
+			src_filter[0] = FEATURE_DEPENDENCIES[feature]['src_filter'] + ' ' + src_filter[0]
+			proj.set("env:" + env["PIOENV"], "src_filter", src_filter)
+			env.Replace(SRC_FILTER=src_filter)
+
+# load marlin features
+def load_marlin_features():
+	if "MARLIN_FEATURES" in env:
+		return
+
+	# procces defines
+	# print(env.Dump())
+	build_flags = env.get('BUILD_FLAGS')
+	build_flags = env.ParseFlagsExtended(build_flags)
+	cmd = []
+	# build flags from board.json
+	# if 'BOARD' in env:
+	# 	cmd += [env.BoardConfig().get("build.extra_flags")]
+	for s in build_flags['CPPDEFINES']:
+		if isinstance(s, tuple):
+			cmd += ['-D' + s[0] + '=' + str(s[1])]
+		else:
+			cmd += ['-D' + s]
+	# cmd += ['-w -dM -E -x c++ Marlin/src/inc/MarlinConfigPre.h']
+	cmd += ['-w -dM -E -x c++ buildroot/share/PlatformIO/scripts/common-features-dependencies.h']
+	cmd = [env.get('CXX')] + cmd
+	cmd = ' '.join(cmd)
+	print(cmd)
+	define_list = subprocess.check_output(cmd, shell=True).splitlines()
+	marlin_features = {}
+	for define in define_list:
+		feature = define[8:].strip().decode().split(' ')
+		feature, definition = feature[0], ' '.join(feature[1:])
+		marlin_features[feature] = definition
+	env["MARLIN_FEATURES"] = marlin_features
+
+def MarlinFeatureIsEnabled(env, feature):
+	load_marlin_features()
+	return feature in env["MARLIN_FEATURES"]
+
+# add a method for others scripts to check if a feature is enabled
+env.AddMethod(MarlinFeatureIsEnabled)
+
+# install all dependencies for features enabled in Configuration.h
+install_features_dependencies()