class Predictor():
def __init__(self):
self.vcs = GitProvider(config.getRepoDir())
self.ccdb = CCDatabase(config.getCcDbFile())
self.codeChecker = CodeChecker(config.getRepoDir())
self.checkers = Checkers()
self.loadCommitList()
def loadCommitList(self):
self.commits = self.vcs.getAllVersions(config.getBranch())
self.currentCommitIndex = 0
def convertFilePathToRepoRelativePath(self, path):
return os.path.relpath(path, config.getRepoDir())
def getDiffResolvedIds(self):
resolved = self.codeChecker.diffResolved(config.getCcRunName(),
config.getTmpDir(), self.ccdb)
ids = []
for bug in resolved:
ids.append(bug['reportId'])
return ids
def predict(self, id, checker):
# Load all bugs
print("Loading bug data...")
ids = []
if id == -1:
bugs = self.ccdb.getAllBugsForChecker(checker)
ids = [x[0] for x in bugs]
else:
ids.append(id)
# Loading model
print("Loading model...")
model = load_model(config.cfModelFilenameFormat.format(checker))
model.summary()
vLabels = ['NOT OK', 'OK', 'Skipped']
# Initialize coder
print("Initializing coder...")
self.dictionary = Dictionary(checker)
self.coder = Coder(self.dictionary)
self.totalDictionaryLength = self.dictionary.length()
# Predicting
print("Starting predictions...")
for i in ids:
allData = self.ccdb.getBugData(i)
if allData.getChecker(
) not in globals.availableCheckers or allData.getChecker(
) != checker:
print("Bug #{0} - checker not supported".format(i))
else:
# Load extra tokens from checker message
checkerInfo = self.checkers.extractTokensForChecker(
allData.getChecker(), allData.getMessage())
# Retrieve code fragment with bug
fileRelativePath = self.convertFilePathToRepoRelativePath(
allData.getFile())
fullCodeWithBug = self.vcs.getFileContents(
fileRelativePath, self.commits[self.currentCommitIndex])
extractor = CodeExtractor(allData)
extractor.loadCodeFromText(fullCodeWithBug)
extractor.extractBugCode()
bugCodeFragment = extractor.getBugCodeFragment()
fixCodeFragment = ''
# Encode it
encodedBugData, initialUnkList = self.coder.encode(
bugCodeFragment, checkerData=checkerInfo)
# Convert to one-hot
MODEL_X_MAX_LEN = model.get_layer(index=0).input_shape[1]
if len(encodedBugData) > MODEL_X_MAX_LEN:
print(
"Bug #{0} - Code too big for model, ignored".format(i))
continue
elif id == -1:
print("Bug #{0} - Good to go".format(i))
continue
noZerosToPad = MODEL_X_MAX_LEN - len(encodedBugData)
if noZerosToPad > 0:
encodedBugData = self.coder.applyPadding(
encodedBugData, noZerosToPad)
X = np.zeros((1, MODEL_X_MAX_LEN, self.totalDictionaryLength))
X[0] = self.coder.convertToOneHot(
encodedBugData,
np.zeros((MODEL_X_MAX_LEN, self.totalDictionaryLength)))
# Predict and convert from one-hot
Y = self.coder.convertFromOneHot(model.predict(X)[0])
print(Y)
# Decode
Y = self.coder.removePadding(Y)
fixCodeFragment = self.coder.decode(Y, initialUnkList)
#Verify?
vStatus = 2
if config.cfVerifyPrediction:
# Apply fix in source code file
extractor.applyFix(fixCodeFragment)
extractor.saveToFile(allData.getFile())
# Run CodeChecker and analyze code
self.codeChecker.check(True)
resolvedIds = self.getDiffResolvedIds()
# Check if ID is resolved in tmp folder
isFixed = i in resolvedIds
# Set vStatus accordingly
if isFixed:
vStatus = 1
else:
vStatus = 0
#Print
print("Bug #{0} - summary".format(i))
print("== Code fragment with bug ==")
print(bugCodeFragment)
print("== Suggested fix ==")
print(fixCodeFragment)
print("Verification: {0}".format(vLabels[vStatus]))
a = ' '
while a != 'y' and a != 'n':
a = input("Apply fix? (y/n): ")
if a == 'y':
if not config.cfVerifyPrediction:
# Apply fix in source code file
extractor.applyFix(fixCodeFragment)
extractor.saveToFile(allData.getFile())
elif config.cfVerifyPrediction:
# Revert file contents
self.vcs.checkout(self.commits[self.currentCommitIndex])
print('Done')
print("All done, exiting...")
def main(self):
# Do analysis
shutil.rmtree(config.getTmpDir())
self.codeChecker.check(True)
# Diff new
newBugs = self.getDiffNew()
if len(newBugs) < 1:
print('No new bugs introduced, commit is accepted!')
return
print("New bugs found! Count: {0}. Attempting repairs...".format(len(newBugs)))
# Load models
models = {}
for checker in globals.availableCheckers:
models[checker] = load_model(config.cfModelFilenameFormat.format(checker))
# Load all content from files having new
files = set([self.convertFilePathToRepoRelativePath(x.getFile()) for x in newBugs])
fileContents = {}
for f in files:
fn = config.getRepoDir() + f
with open(fn, 'r') as fh:
fileContents[f] = ''.join(fh.readlines())
# For each file sort by bug line desc
suggestions = []
validSuggestions = 0
for f in files:
bugs = [x for x in newBugs if self.convertFilePathToRepoRelativePath(x.getFile()) == f]
bugs.sort(key=lambda x: x.getLine(), reverse=True)
print("=== File: {0} ===".format(f))
# For each bug get a suggestion and test it
for b in bugs:
print("L{0}, Type: {1}".format(b.getLine(), b.getChecker()))
# Prepare useful data
dictionary = Dictionary(b.getChecker())
coder = Coder(dictionary)
totalDictionaryLength = dictionary.length()
# Prepare and extract bug fragment
checkerInfo = self.checkers.extractTokensForChecker(b.getChecker(), b.getMessage())
extractor = CodeExtractor(b)
extractor.loadCodeFromText(fileContents[f])
extractor.extractBugCode()
bugCodeFragment = extractor.getBugCodeFragment()
fixCodeFragment = ''
# Encode it
encodedBugData, initialUnkList = coder.encode(bugCodeFragment, checkerData = checkerInfo)
# Convert to one-hot
MODEL_X_MAX_LEN = models[b.getChecker()].get_layer(index = 0).input_shape[1]
if len(encodedBugData) > MODEL_X_MAX_LEN:
print("Ignored: Code too big for model")
continue
noZerosToPad = MODEL_X_MAX_LEN - len(encodedBugData)
if noZerosToPad > 0:
encodedBugData = coder.applyPadding(encodedBugData, noZerosToPad)
X = np.zeros((1, MODEL_X_MAX_LEN, totalDictionaryLength))
X[0] = coder.convertToOneHot(encodedBugData, np.zeros((MODEL_X_MAX_LEN, totalDictionaryLength)))
# Predict and convert from one-hot
Y = coder.convertFromOneHot(models[b.getChecker()].predict(X)[0])
Y = coder.removePadding(Y)
# Decode
fixCodeFragment = coder.decode(Y, initialUnkList)[:-1]
#Verify?
vStatus = 2
if config.cfVerifyPrediction:
# Apply fix in source code file
extractor.applyFix(fixCodeFragment)
extractor.saveToFile(b.getFile())
# Run CodeChecker and analyze code
shutil.rmtree(config.getTmpDir())
compilationLog = self.codeChecker.check(True)
newBugsAfterFix = self.getDiffNew()
# Check if ID is resolved in tmp folder
isFixed = 'Build failed' not in compilationLog
for nb in newBugsAfterFix:
if self.isBugDataEqual(b, nb):
isFixed = False
# Set vStatus accordingly
if isFixed:
vStatus = 1
else:
vStatus = 0
# Revert file
extractor.loadCodeFromText(fileContents[f])
extractor.saveToFile(b.getFile())
if vStatus == 0:
print("Verification: Negative, cannot be applied")
elif vStatus == 1:
print("Verification: Positive, can be applied")
validSuggestions += 1
elif vStatus == 2:
print("Verification: Skipped")
validSuggestions += 1
sugg = SuggestionData(f, b, bugCodeFragment, fixCodeFragment, vStatus)
suggestions.append(sugg)
print("Valid suggestions prepared for {0} / {1} bugs.".format(validSuggestions, len(newBugs)))
if validSuggestions > 0:
print("Apply valid suggestions (a), display them (d), ignore them (i) or abort commit (q)?")
apply = False
choice = True
while choice:
c = sys.stdin.read(1)
if c == 'a':
apply = True
choice = False
print("Applying fixes...")
elif c == 'i':
choice = False
print("Fixes ignored...")
elif c == 'd':
self.displaySuggestions(suggestions)
print("Apply valid suggestions (a), ignore them (i) or abort commit (q)?")
elif c == 'q':
print("Aborting commit...")
sys.exit(1)
if apply:
self.applyValidFixes(suggestions, files)
print("Fixes applied!")
if validSuggestions != len(newBugs):
print("Unable to fix all bugs, continue with commit (c) or abort (q)?")
choice = True
while choice:
c = sys.stdin.read(1)
if c == 'c':
choice = False
print("Continuing...")
elif c == 'q':
print("Aborting commit...")
sys.exit(1)
else:
print("Bugs corrected, commit is good to go!")