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-rw-r--r--checkstyle/src/main/CopyrightCheck.py262
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diff --git a/checkstyle/src/main/CopyrightCheck.py b/checkstyle/src/main/CopyrightCheck.py
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+# ============LICENSE_START=======================================================
+# Copyright (C) 2022 Nordix Foundation
+# ================================================================================
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+# SPDX-License-Identifier: Apache-2.0
+# ============LICENSE_END=========================================================
+
+import subprocess
+import csv
+import re
+import datetime
+
+#constants
+import sys
+
+COMMITTERS_CONFIG_FILE = ''
+TEMPLATE_COPYRIGHT_FILE = ''
+IGNORE_FILE = ''
+if len(sys.argv) == 4:
+ COMMITTERS_CONFIG_FILE = sys.argv[1]
+ TEMPLATE_COPYRIGHT_FILE = sys.argv[2]
+ IGNORE_FILE = sys.argv[3]
+
+BANNER = '=' * 120
+
+def main():
+ print(BANNER + '\nCopyright Check Python Script:')
+ PermissionsCheck()
+
+ committerEmailExtension = GetCommitterEmailExtension()
+ projectCommitters = ReadProjectCommittersConfigFile()
+
+ CheckCommitterInConfigFile(committerEmailExtension, projectCommitters)
+
+ alteredFiles = FindAlteredFiles()
+
+ if alteredFiles:
+ issueCounter = CheckCopyrightForFiles(alteredFiles, projectCommitters, committerEmailExtension)
+ else:
+ issueCounter = 0
+
+ print(str(issueCounter) + ' issue(s) found after '+ str(len(alteredFiles)) + ' altered file(s) checked')
+ print(BANNER)
+
+
+# Check that Script has access to command line functions to use git
+def PermissionsCheck():
+ if 'permission denied' in subprocess.run('git', shell=True, stdout=subprocess.PIPE).stdout.decode('utf-8').lower():
+ print('Error, I may not have the necessary permissions. Exiting...')
+ print(BANNER)
+ sys.exit()
+ else:
+ return
+
+# Returns List of Strings of file tracked by git which have been changed/added
+def FindAlteredFiles():
+ ignoreFilePaths = GetIgnoredFiles()
+
+ #Before Stage lower case d removes deleted files
+ stream = subprocess.run('git diff --name-only --diff-filter=d', shell=True, stdout=subprocess.PIPE)
+ fileNames = stream.stdout.decode('utf-8')
+ #Staged
+ stream = subprocess.run('git diff --name-only --cached --diff-filter=d', shell=True, stdout=subprocess.PIPE)
+ fileNames += '\n' + stream.stdout.decode('utf-8')
+ #New committed
+ stream = subprocess.run('git diff --name-only HEAD^ HEAD --diff-filter=d', shell=True, stdout=subprocess.PIPE)
+ fileNames += '\n' + stream.stdout.decode('utf-8')
+
+ #String to list of strings
+ alteredFiles = fileNames.split("\n")
+
+ #Remove duplicates
+ alteredFiles = list(dict.fromkeys(alteredFiles))
+
+ #Remove blank string(s)
+ alteredFiles = list(filter(None, alteredFiles))
+
+ #Remove ignored-extensions
+ alteredFiles = list(filter(lambda fileName: not re.match("|".join(ignoreFilePaths), fileName), alteredFiles))
+
+ return alteredFiles
+
+# Get the email of the most recent committer
+def GetCommitterEmailExtension():
+ email = subprocess.run('git show -s --format=\'%ce\'', shell=True, stdout=subprocess.PIPE).stdout.decode('utf-8').rstrip('\n')
+ return email[email.index('@'):]
+
+# Read the config file with names of companies and respective email extensions
+def ReadProjectCommittersConfigFile():
+ try:
+ with open(COMMITTERS_CONFIG_FILE, 'r') as file:
+ reader = csv.reader(file, delimiter=',')
+ projectCommitters = {row[0]:row[1] for row in reader}
+ projectCommitters.pop('email') #Remove csv header
+ except FileNotFoundError:
+ print('Unable to open Project Committers Config File, have the command line arguments been set?')
+ print(BANNER)
+ sys.exit()
+ return projectCommitters
+
+def CheckCommitterInConfigFile(committerEmailExtension, projectCommitters):
+ if not committerEmailExtension in projectCommitters:
+ print('Error, Committer email is not included in config file.')
+ print('If your company is new to the project please make appropriate changes to project-committers-config.csv')
+ print('for Copyright Check to work.')
+ print('Exiting...')
+ print(BANNER)
+ sys.exit()
+ else:
+ return True
+
+# Read config file with list of files to ignore
+def GetIgnoredFiles():
+ try:
+ with open(IGNORE_FILE, 'r') as file:
+ reader = csv.reader(file)
+ ignoreFilePaths = [row[0] for row in reader]
+ ignoreFilePaths.pop(0) #Remove csv header
+ ignoreFilePaths = [filePath.replace('*', '.*') for filePath in ignoreFilePaths]
+ except FileNotFoundError:
+ print('Unable to open File Ignore Config File, have the command line arguments been set?')
+ print(BANNER)
+ sys.exit()
+ return ignoreFilePaths
+
+# Read the template copyright file
+def GetCopyrightTemplate():
+ try:
+ with open(TEMPLATE_COPYRIGHT_FILE, 'r') as file:
+ copyrightTemplate = file.readlines()
+ except FileNotFoundError:
+ print('Unable to open Template Copyright File, have the command line arguments been set?')
+ print(BANNER)
+ sys.exit()
+ return copyrightTemplate
+
+def GetProjectRootDir():
+ return subprocess.run('git rev-parse --show-toplevel', shell=True, stdout=subprocess.PIPE).stdout.decode('utf-8').rstrip('\n') + '/'
+
+# Get the Copyright from the altered file
+def ParseFileCopyright(fileObject):
+ global issueCounter
+ copyrightFlag = False
+ copyrightInFile = {}
+ lineNumber = 1
+ for line in fileObject:
+ if 'LICENSE_START' in line:
+ copyrightFlag = True
+ if copyrightFlag:
+ copyrightInFile[lineNumber] = line
+ if 'LICENSE_END' in line:
+ break
+ lineNumber += 1
+
+ if not copyrightFlag:
+ print(fileObject.name + ' | no copyright found')
+ return {}, {}
+
+ copyrightSignatures = {}
+ copyrightLineNumbers = list(copyrightInFile.keys())
+ #Capture signature lines after LICENSE_START line
+ for lineNumber in copyrightLineNumbers:
+ if '=' not in copyrightInFile[lineNumber]:
+ copyrightSignatures[lineNumber] = copyrightInFile[lineNumber]
+ copyrightInFile.pop(lineNumber)
+ elif 'LICENSE_START' not in copyrightInFile[lineNumber]:
+ break
+
+ return (copyrightInFile, copyrightSignatures)
+
+# Remove the Block comment syntax
+def RemoveCommentBlock(fileCopyright):
+ # Comment Characters can very depending on file # *..
+ endOfCommentsIndex = list(fileCopyright.values())[0].index('=')
+ for key in fileCopyright:
+ fileCopyright[key] = fileCopyright[key][endOfCommentsIndex:]
+ if fileCopyright[key] == '':
+ fileCopyright[key] = '\n'
+
+ return fileCopyright
+
+def CheckCopyrightForFiles(alteredFiles, projectCommitters, committerEmailExtension):
+ issueCounter = 0
+ templateCopyright = GetCopyrightTemplate() #Get Copyright Template
+ projectRootDir = GetProjectRootDir()
+
+ for fileName in alteredFiles: # Not removed files
+ try:
+ with open(projectRootDir + fileName, 'r') as fileObject:
+ (fileCopyright, fileSignatures) = ParseFileCopyright(fileObject)
+
+ #Empty dict evaluates to false
+ if fileCopyright and fileSignatures:
+ fileCopyright = RemoveCommentBlock(fileCopyright)
+ issueCounter += CheckCopyrightFormat(fileCopyright, templateCopyright, projectRootDir + fileName)
+ committerCompany = projectCommitters[committerEmailExtension]
+ issueCounter += CheckCopyrightSignature(fileSignatures, committerCompany, projectRootDir + fileName)
+ else:
+ issueCounter += 1
+
+ except FileNotFoundError:
+ issueCounter += 1
+ print('Unable to find file ' + projectRootDir + fileName)
+ return issueCounter
+
+# Check that the filecopyright matches the template copyright and print comparison
+def CheckCopyrightFormat(copyrightInFile, templateCopyright, filePath):
+ issueCounter = 0
+ errorWithComparison = ''
+ for copyrightInFileKey, templateLine in zip(copyrightInFile, templateCopyright):
+ if copyrightInFile[copyrightInFileKey] != templateLine:
+ issueCounter += 1
+ errorWithComparison += filePath + ' | line ' + '{:2}'.format(copyrightInFileKey) + ' read \t ' + repr(copyrightInFile[copyrightInFileKey]) + '\n'
+ errorWithComparison += filePath + ' | line ' + '{:2}'.format(copyrightInFileKey) + ' expected ' + repr(templateLine) + '\n'
+ if errorWithComparison != '':
+ print(errorWithComparison.rstrip('\n'))
+ return issueCounter
+
+# Check the signatures and compare with committer signature and current year
+def CheckCopyrightSignature(copyrightSignatures, committerCompany, filePath):
+ issueCounter = 0
+ errorWithSignature = ''
+ signatureExists = False #signatureExistsForCommitter
+ afterFirstLine = False #afterFirstCopyright
+ for key in copyrightSignatures:
+ if afterFirstLine and 'Modifications Copyright' not in copyrightSignatures[key]:
+ issueCounter += 1
+ errorWithSignature += filePath + ' | line ' + str(key) + ' expected Modifications Copyright\n'
+ elif not afterFirstLine and 'Copyright' not in copyrightSignatures[key]:
+ issueCounter += 1
+ errorWithSignature += filePath + ' | line ' + str(key) + ' expected Copyright\n'
+ if committerCompany in copyrightSignatures[key]:
+ signatureExists = True
+ signatureYear = int(re.findall(r'\d+', copyrightSignatures[key])[-1])
+ currentYear = datetime.date.today().year
+ if signatureYear != currentYear:
+ issueCounter += 1
+ errorWithSignature += filePath + ' | line ' + str(key) + ' update year to include ' + str(currentYear) + '\n'
+ afterFirstLine = True
+
+ if not signatureExists:
+ issueCounter += 1
+ errorWithSignature += filePath + ' | missing company name and year for ' + committerCompany
+
+ if errorWithSignature != '':
+ print(errorWithSignature.rstrip('\n'))
+
+ return issueCounter
+
+if __name__ == '__main__':
+ main() \ No newline at end of file