ci: core_checker: Match copyright line with regex

Allow for a variety of copyright dates by matching copyright statements
with a regex.

.github/scripts/common/header_checker.py

@@ -67,10 +67,13 @@ class HeaderChecker:
         py_ext=None,
         asm_ext=None,
         third_party_patterns=None,
+        copyright_regex = None
     ):
         self.padding = padding
         self.header = header
 
+        self.copyright_regex = re.compile(copyright_regex)
+
         # Construct mutated header for assembly files
         self.asm_header = [";" + line for line in header]
 
@@ -124,7 +127,12 @@ class HeaderChecker:
     def isValidHeaderSection(self, file_ext, section_name, section):
         """Validate a given section based on file extentions and section name"""
         valid = False
-        if file_ext in self.pyExtList:
+        if self.copyright_regex and section_name == "copyright":
+            valid = True
+            for line in section:
+                if not self.copyright_regex.match(line):
+                    valid = False
+        elif file_ext in self.pyExtList:
             valid = self.headers_py[section_name] == section
         elif file_ext in self.asmExtList:
             valid = self.headers[section_name] == section

.github/scripts/core_checker.py

@@ -320,12 +320,14 @@ FREERTOS_HEADER = [
     ' */\n',
 ]
 
+FREERTOS_COPYRIGHT_REGEX = r"^( *(\/\*|\*|#|\/\/))? Copyright \(C\) 20\d\d Amazon.com, Inc. or its affiliates.  All Rights Reserved\.( \*\/)?$"
+
 def main():
     parser = HeaderChecker.configArgParser()
     args   = parser.parse_args()
 
     # Configure the checks then run
-    checker = HeaderChecker(FREERTOS_HEADER)
+    checker = HeaderChecker(FREERTOS_HEADER, copyright_regex=FREERTOS_COPYRIGHT_REGEX)
     checker.ignoreExtension(*FREERTOS_IGNORED_EXTENSIONS)
     checker.ignorePattern(*FREERTOS_IGNORED_PATTERNS)
     checker.ignoreFile(*FREERTOS_IGNORED_FILES)