311 lines
		
	
	
		
			9.2 KiB
		
	
	
	
		
			Python
		
	
	
	
	
	
			
		
		
	
	
			311 lines
		
	
	
		
			9.2 KiB
		
	
	
	
		
			Python
		
	
	
	
	
	
#
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# common-dependencies.py
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# Convenience script to check dependencies and add libs and sources for Marlin Enabled Features
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#
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import subprocess,os,re
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PIO_VERSION_MIN = (5, 0, 3)
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try:
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	from platformio import VERSION as PIO_VERSION
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	weights = (1000, 100, 1)
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	version_min = sum([x[0] * float(re.sub(r'[^0-9]', '.', str(x[1]))) for x in zip(weights, PIO_VERSION_MIN)])
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	version_cur = sum([x[0] * float(re.sub(r'[^0-9]', '.', str(x[1]))) for x in zip(weights, PIO_VERSION)])
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	if version_cur < version_min:
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		print()
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		print("**************************************************")
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		print("******      An update to PlatformIO is      ******")
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		print("******  required to build Marlin Firmware.  ******")
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		print("******                                      ******")
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		print("******      Minimum version: ", PIO_VERSION_MIN, "    ******")
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		print("******      Current Version: ", PIO_VERSION, "    ******")
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		print("******                                      ******")
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		print("******   Update PlatformIO and try again.   ******")
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		print("**************************************************")
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		print()
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		exit(1)
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except SystemExit:
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	exit(1)
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except:
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	print("Can't detect PlatformIO Version")
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from platformio.package.meta import PackageSpec
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from platformio.project.config import ProjectConfig
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Import("env")
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#print(env.Dump())
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try:
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	verbose = int(env.GetProjectOption('custom_verbose'))
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except:
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	verbose = 0
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def blab(str,level=1):
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	if verbose >= level:
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		print("[deps] %s" % str)
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FEATURE_CONFIG = {}
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def add_to_feat_cnf(feature, flines):
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	try:
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		feat = FEATURE_CONFIG[feature]
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	except:
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		FEATURE_CONFIG[feature] = {}
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	# Get a reference to the FEATURE_CONFIG under construction
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	feat = FEATURE_CONFIG[feature]
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	# Split up passed lines on commas or newlines and iterate
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	# Add common options to the features config under construction
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	# For lib_deps replace a previous instance of the same library
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	atoms = re.sub(r',\\s*', '\n', flines).strip().split('\n')
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	for line in atoms:
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		parts = line.split('=')
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		name = parts.pop(0)
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		if name in ['build_flags', 'extra_scripts', 'src_filter', 'lib_ignore']:
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			feat[name] = '='.join(parts)
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			blab("[%s] %s=%s" % (feature, name, feat[name]), 3)
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		else:
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			for dep in re.split(r",\s*", line):
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				lib_name = re.sub(r'@([~^]|[<>]=?)?[\d.]+', '', dep.strip()).split('=').pop(0)
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				lib_re = re.compile('(?!^' + lib_name + '\\b)')
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				feat['lib_deps'] = list(filter(lib_re.match, feat['lib_deps'])) + [dep]
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				blab("[%s] lib_deps = %s" % (feature, dep), 3)
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def load_config():
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	blab("========== Gather [features] entries...")
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	items = ProjectConfig().items('features')
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	for key in items:
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		feature = key[0].upper()
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		if not feature in FEATURE_CONFIG:
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			FEATURE_CONFIG[feature] = { 'lib_deps': [] }
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		add_to_feat_cnf(feature, key[1])
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	# Add options matching custom_marlin.MY_OPTION to the pile
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	blab("========== Gather custom_marlin entries...")
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	all_opts = env.GetProjectOptions()
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	for n in all_opts:
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		key = n[0]
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		mat = re.match(r'custom_marlin\.(.+)', key)
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		if mat:
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			try:
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				val = env.GetProjectOption(key)
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			except:
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				val = None
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			if val:
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				opt = mat.group(1).upper()
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				blab("%s.custom_marlin.%s = '%s'" % ( env['PIOENV'], opt, val ))
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				add_to_feat_cnf(opt, val)
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def get_all_known_libs():
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	known_libs = []
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	for feature in FEATURE_CONFIG:
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		feat = FEATURE_CONFIG[feature]
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		if not 'lib_deps' in feat:
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			continue
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		for dep in feat['lib_deps']:
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			known_libs.append(PackageSpec(dep).name)
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	return known_libs
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def get_all_env_libs():
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	env_libs = []
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	lib_deps = env.GetProjectOption('lib_deps')
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	for dep in lib_deps:
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		env_libs.append(PackageSpec(dep).name)
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	return env_libs
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def set_env_field(field, value):
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	proj = env.GetProjectConfig()
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	proj.set("env:" + env['PIOENV'], field, value)
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# All unused libs should be ignored so that if a library
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# exists in .pio/lib_deps it will not break compilation.
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def force_ignore_unused_libs():
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	env_libs = get_all_env_libs()
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	known_libs = get_all_known_libs()
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	diff = (list(set(known_libs) - set(env_libs)))
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	lib_ignore = env.GetProjectOption('lib_ignore') + diff
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	blab("Ignore libraries: %s" % lib_ignore)
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	set_env_field('lib_ignore', lib_ignore)
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def apply_features_config():
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	load_config()
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	blab("========== Apply enabled features...")
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	for feature in FEATURE_CONFIG:
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		if not env.MarlinFeatureIsEnabled(feature):
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			continue
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		feat = FEATURE_CONFIG[feature]
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		if 'lib_deps' in feat and len(feat['lib_deps']):
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			blab("========== Adding lib_deps for %s... " % feature, 2)
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			# feat to add
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			deps_to_add = {}
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			for dep in feat['lib_deps']:
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				deps_to_add[PackageSpec(dep).name] = dep
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				blab("==================== %s... " % dep, 2)
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			# Does the env already have the dependency?
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			deps = env.GetProjectOption('lib_deps')
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			for dep in deps:
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				name = PackageSpec(dep).name
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				if name in deps_to_add:
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					del deps_to_add[name]
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			# Are there any libraries that should be ignored?
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			lib_ignore = env.GetProjectOption('lib_ignore')
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			for dep in deps:
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				name = PackageSpec(dep).name
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				if name in deps_to_add:
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					del deps_to_add[name]
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			# Is there anything left?
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			if len(deps_to_add) > 0:
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				# Only add the missing dependencies
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				set_env_field('lib_deps', deps + list(deps_to_add.values()))
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		if 'build_flags' in feat:
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			f = feat['build_flags']
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			blab("========== Adding build_flags for %s: %s" % (feature, f), 2)
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			new_flags = env.GetProjectOption('build_flags') + [ f ]
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			env.Replace(BUILD_FLAGS=new_flags)
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		if 'extra_scripts' in feat:
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			blab("Running extra_scripts for %s... " % feature, 2)
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			env.SConscript(feat['extra_scripts'], exports="env")
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		if 'src_filter' in feat:
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			blab("========== Adding src_filter for %s... " % feature, 2)
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			src_filter = ' '.join(env.GetProjectOption('src_filter'))
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			# first we need to remove the references to the same folder
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			my_srcs = re.findall(r'[+-](<.*?>)', feat['src_filter'])
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			cur_srcs = re.findall(r'[+-](<.*?>)', src_filter)
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			for d in my_srcs:
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				if d in cur_srcs:
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					src_filter = re.sub(r'[+-]' + d, '', src_filter)
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			src_filter = feat['src_filter'] + ' ' + src_filter
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			set_env_field('src_filter', [src_filter])
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			env.Replace(SRC_FILTER=src_filter)
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		if 'lib_ignore' in feat:
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			blab("========== Adding lib_ignore for %s... " % feature, 2)
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			lib_ignore = env.GetProjectOption('lib_ignore') + [feat['lib_ignore']]
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			set_env_field('lib_ignore', lib_ignore)
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#
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# Find a compiler, considering the OS
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#
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ENV_BUILD_PATH = os.path.join(env.Dictionary('PROJECT_BUILD_DIR'), env['PIOENV'])
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GCC_PATH_CACHE = os.path.join(ENV_BUILD_PATH, ".gcc_path")
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def search_compiler():
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	try:
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		filepath = env.GetProjectOption('custom_gcc')
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		blab("Getting compiler from env")
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		return filepath
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	except:
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		pass
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	if os.path.exists(GCC_PATH_CACHE):
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		with open(GCC_PATH_CACHE, 'r') as f:
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			return f.read()
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	# Find the current platform compiler by searching the $PATH
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	# which will be in a platformio toolchain bin folder
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	path_regex = re.escape(env['PROJECT_PACKAGES_DIR'])
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	gcc = "g++"
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	if env['PLATFORM'] == 'win32':
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		path_separator = ';'
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		path_regex += r'.*\\bin'
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		gcc += ".exe"
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	else:
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		path_separator = ':'
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		path_regex += r'/.+/bin'
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	# Search for the compiler
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	for pathdir in env['ENV']['PATH'].split(path_separator):
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		if not re.search(path_regex, pathdir, re.IGNORECASE):
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			continue
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		for filepath in os.listdir(pathdir):
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			if not filepath.endswith(gcc):
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				continue
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			# Use entire path to not rely on env PATH
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			filepath = os.path.sep.join([pathdir, filepath])
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			# Cache the g++ path to no search always
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			if os.path.exists(ENV_BUILD_PATH):
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				with open(GCC_PATH_CACHE, 'w+') as f:
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					f.write(filepath)
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			return filepath
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	filepath = env.get('CXX')
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	blab("Couldn't find a compiler! Fallback to %s" % filepath)
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	return filepath
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#
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# Use the compiler to get a list of all enabled features
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#
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def load_marlin_features():
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	if 'MARLIN_FEATURES' in env:
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		return
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	# Process defines
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	build_flags = env.get('BUILD_FLAGS')
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	build_flags = env.ParseFlagsExtended(build_flags)
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	cxx = search_compiler()
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	cmd = ['"' + cxx + '"']
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	# Build flags from board.json
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	#if 'BOARD' in env:
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	#	cmd += [env.BoardConfig().get("build.extra_flags")]
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	for s in build_flags['CPPDEFINES']:
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		if isinstance(s, tuple):
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			cmd += ['-D' + s[0] + '=' + str(s[1])]
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		else:
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			cmd += ['-D' + s]
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	cmd += ['-D__MARLIN_DEPS__ -w -dM -E -x c++ buildroot/share/PlatformIO/scripts/common-dependencies.h']
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	cmd = ' '.join(cmd)
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	blab(cmd, 4)
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	define_list = subprocess.check_output(cmd, shell=True).splitlines()
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	marlin_features = {}
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	for define in define_list:
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		feature = define[8:].strip().decode().split(' ')
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		feature, definition = feature[0], ' '.join(feature[1:])
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		marlin_features[feature] = definition
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	env['MARLIN_FEATURES'] = marlin_features
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#
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# Return True if a matching feature is enabled
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#
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def MarlinFeatureIsEnabled(env, feature):
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	load_marlin_features()
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	r = re.compile('^' + feature + '$')
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	found = list(filter(r.match, env['MARLIN_FEATURES']))
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	# Defines could still be 'false' or '0', so check
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	some_on = False
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	if len(found):
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		for f in found:
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			val = env['MARLIN_FEATURES'][f]
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			if val in [ '', '1', 'true' ]:
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				some_on = True
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			elif val in env['MARLIN_FEATURES']:
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				some_on = env.MarlinFeatureIsEnabled(val)
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	return some_on
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#
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# Add a method for other PIO scripts to query enabled features
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#
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env.AddMethod(MarlinFeatureIsEnabled)
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#
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# Add dependencies for enabled Marlin features
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#
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apply_features_config()
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force_ignore_unused_libs()
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