Scope parameter included in build by cmake/configs

Conflicts:
	Tools/px_generate_params.py
	src/lib/ecl

Tools/px_generate_params.py

@@ -1,12 +1,89 @@
 #!/usr/bin/env python
 import xml.etree.ElementTree as ET
 import os
+import re
+import codecs
 
-if len(os.sys.argv) != 2:
+class Scope(object):
+	"""
+	Single parameter group
+	"""
+	def __init__(self, ):
+		self.scope = set()
+
+
+	def __str__(self):
+		return self.scope.__str__()
+
+	def Add(self, scope):
+		"""
+		Add Scope to set
+		"""
+		self.scope.add(scope)
+
+	def Has(self, scope):
+		"""
+		Check for existance
+		"""
+		if len(self.scope) == 0:
+			return True
+		return scope in self.scope
+
+
+class CMakeParser(object):
+	"""
+	Parses provided data and stores all found paths in scope.
+	"""
+	re_split_lines = re.compile(r'[\r\n]+')
+	re_comment = re.compile(r'^\#')
+	re_start = re.compile(r'set\s*\(\s*config_module_list')
+	re_end = re.compile(r'\)\s*')
+
+	def Parse(self, scope, contents):
+		"""
+		Incrementally parse cmake file contents and append all found path scope
+		to scope.
+		"""
+		# This code is essentially a comment-parsing grammar. "state"
+		# represents parser state. It contains human-readable state
+		# names.
+		state = None
+		for line in self.re_split_lines.split(contents):
+			line = line.strip()
+			# Ignore empty lines
+			if line == "":
+				continue
+			if self.re_comment.match(line):
+				continue
+			elif self.re_start.match(line):
+				state = "gather"
+				continue
+			elif state is not None and state == "gather":
+				if self.re_end.match(line):
+					return True
+				scope.Add(line)
+		return False
+
+
+if len(os.sys.argv) < 2:
 	print("Error in %s" % os.sys.argv[0])
-	print("Usage: %s <parameters.xml>" % os.sys.argv[0])
+	print("Usage: %s <parameters.xml> [cmake-file-scoping] " % os.sys.argv[0])
 	raise SystemExit
 
+
+scope = Scope()
+if len(os.sys.argv) == 3:
+	with codecs.open(os.sys.argv[2], 'r', 'utf-8') as f:
+		try:
+			contents = f.read()
+			f.close()
+			parser  = CMakeParser()
+			parser.Parse(scope, contents)
+		except:
+			contents = ''
+			print('Failed reading file: %s, skipping scoping.' % os.sys.argv[2])
+			pass
+
 fp_header = open("px4_parameters.h", "w")
 fp_src = open("px4_parameters.c", "w")
 
@@ -30,14 +107,19 @@ end_name = ""
 
 for group in root:
 	if group.tag == "group" and "no_code_generation" not in group.attrib:
-		header += """
+		section = """
 	/*****************************************************************
 	 * %s
 	 ****************************************************************/""" % group.attrib["name"]
 		for param in group:
+			scope_ = param.find('scope').text
+			if not scope.Has(scope_):
+				continue
 			if not start_name:
 				start_name = param.attrib["name"]
 			end_name = param.attrib["name"]
+			header += section
+			section =""
 			header += """
 	const struct param_info_s __param__%s;""" % param.attrib["name"]
 header += """
@@ -63,12 +145,14 @@ struct px4_parameters_t px4_parameters = {
 i=0
 for group in root:
 	if group.tag == "group" and "no_code_generation" not in group.attrib:
-
-		src += """
+		section = """
 	/*****************************************************************
 	 * %s
 	 ****************************************************************/""" % group.attrib["name"]
 		for param in group:
+			scope_ = param.find('scope').text
+			if not scope.Has(scope_):
+				continue
 			if not start_name:
 				start_name = param.attrib["name"]
 			end_name = param.attrib["name"]
@@ -78,6 +162,8 @@ for group in root:
 			elif (param.attrib["type"] == "INT32"):
 				val_str = ".val.i = "
 			i+=1
+			src += section
+			section =""
 			src += """
 	{
 		"%s",
@@ -97,4 +183,5 @@ __END_DECLS
 
 fp_header.write(header)
 fp_src.write(src)
-
+fp_header.close()
+fp_src.close()