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      1 # -*- coding: utf-8 -*-
      2 
      3 #-------------------------------------------------------------------------
      4 # drawElements Quality Program utilities
      5 # --------------------------------------
      6 #
      7 # Copyright 2016 The Android Open Source Project
      8 #
      9 # Licensed under the Apache License, Version 2.0 (the "License");
     10 # you may not use this file except in compliance with the License.
     11 # You may obtain a copy of the License at
     12 #
     13 #      http://www.apache.org/licenses/LICENSE-2.0
     14 #
     15 # Unless required by applicable law or agreed to in writing, software
     16 # distributed under the License is distributed on an "AS IS" BASIS,
     17 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     18 # See the License for the specific language governing permissions and
     19 # limitations under the License.
     20 #
     21 #-------------------------------------------------------------------------
     22 
     23 import sys
     24 from common import isTextFile
     25 from fnmatch import fnmatch
     26 
     27 LICENSE_APACHE2  = 0
     28 LICENSE_MIT      = 1
     29 LICENSE_MULTIPLE = 2
     30 LICENSE_UNKNOWN  = 3
     31 
     32 LICENSE_KEYS	= [
     33 	# \note Defined this way to avoid triggering license check error on this file
     34 	("P" + "ermission is hereby granted, free of charge",    LICENSE_MIT),
     35 	("L" + "icensed under the Apache License, Version 2.0",  LICENSE_APACHE2),
     36 ]
     37 
     38 SOURCE_FILES	= ["*.py", "*.java", "*.c", "*.h", "*.cpp", "*.hpp"]
     39 
     40 def readFile (file):
     41 	f = open(file, 'rb')
     42 	c = f.read()
     43 	f.close()
     44 	return c
     45 
     46 def getFileLicense (file):
     47 	contents	= readFile(file)
     48 	detected	= LICENSE_UNKNOWN
     49 
     50 	for searchStr, license in LICENSE_KEYS:
     51 		if contents.find(searchStr) != -1:
     52 			if detected != LICENSE_UNKNOWN:
     53 				detected = LICENSE_MULTIPLE
     54 			else:
     55 				detected = license
     56 
     57 	return detected
     58 
     59 def checkFileLicense (file):
     60 	license = getFileLicense(file)
     61 
     62 	if license == LICENSE_MIT:
     63 		print "%s: contains MIT license" % file
     64 	elif license == LICENSE_MULTIPLE:
     65 		print "%s: contains multiple licenses" % file
     66 	elif license == LICENSE_UNKNOWN:
     67 		print "%s: missing/unknown license" % file
     68 
     69 	return license == LICENSE_APACHE2
     70 
     71 def isSourceFile (file):
     72 	for ptrn in SOURCE_FILES:
     73 		if fnmatch(file, ptrn):
     74 			return True
     75 	return False
     76 
     77 def checkLicense (files):
     78 	error = False
     79 	for file in files:
     80 		if isTextFile(file) and isSourceFile(file):
     81 			if not checkFileLicense(file):
     82 				error = True
     83 
     84 	return not error
     85