#! /usr/bin/env python
# Copyright (c) 2017 Cisco and/or its affiliates.
# 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.
#

#

import sys
import os
import subprocess
import argparse
import csv
import traceback

import LongBow
from Language_C import Module
from FileUtil import *
from pprint import pprint

class NoObjectFileException(Exception):
    def __init__(self, value):
        self.value = value
    def __str__(self):
        return repr(self.value)


# Global error string formatting map
conformanceErrorFormatMap = {
    "NAMESPACE_MISMATCH"             : "Function signature %s does not have the correct namespace prefix (%s)",
    "MODULE_MISMATCH"                : "Function signature %s does not have the correct module prefix (%s)",
    "INVALID_STATIC_NAME"            : "Local function signature %s must begin with an underscore '_'.",
    "INVALID_GLOBAL_ENUM_NAME"       : "Global enumeration prefix %s must match the module namespace %s.",
    "INVALID_STATIC_ENUM_NAME"       : "Local enumeration prefix %s must begin with an underscore '_'.",
    "INVALID_GLOBAL_ENUM_VALUE_NAME" : "Global enumeration value prefix %s must match the enum name %s.",
    "INVALID_GLOBAL_TYPEDEF_NAME"    : "Global typedef prefix %s must match the module namespace %s.",
    "INVALID_STATIC_TYPEDEF_NAME"    : "Local typedef prefix %s must begin with an underscore '_'.",
}

def tuplesListToCSV(points):
    '''
    Convert a list of tuples -- data points -- to a list of CSV-formatted strings.
    '''
    lines = []
    for point in points:
        line = ""
        for i in range(len(point) - 1):
            line = line + str(point[i]) + ","
        line = line + str(point[-1])
        lines.append(line)
    return lines

def tuplesListToPrettyText(points, distribution = [99, 90]):
    '''
    Convert a list of tuples -- data points -- to a list of colorized strings based
    on the provided distribution.
    '''
    lines = []
    for point in points:
        line = ""
        for i in range(len(point) - 1):
            line = line + str(point[i]) + " "
        line = line + str(point[-1])
        lines.append(LongBow.scoreBuilder(distribution, point[-1], line))
    return lines

def writeListToStream(llist, fileHandle, appendNewLine = True):
    '''
    Write the list of lines to the given file stream handle, appending a new line after
    every line if told to do so.
    '''
    for line in llist:
        fileHandle.write(line)
        if appendNewLine:
            fileHandle.write("\n")

def isValidModuleName(namespace, typeName, moduleName):
    '''
    Determine if a given module name is valid (conforming) given the namespace and typename.

    For example, a module in the `parc` namespace with typename `JSON` must be named `parc_JSON`.
    '''
    constructedName = namespace + "_" + typeName
    return (moduleName == constructedName)

def isValidFunctionName(namespace, modulePrefix, functionName, scope):
    '''
    Determine if a given function name is valid (conforming) given the namespace and typename.
    '''
    if (scope != "Local"):
        if(not functionName.startswith(namespace)):
            return False, conformanceErrorFormatMap["NAMESPACE_MISMATCH"] % ('"' + functionName + '"', namespace)
        elif (not functionName.startswith(modulePrefix)):
            return False, conformanceErrorFormatMap["MODULE_MISMATCH"] % ('"' + functionName + '"', modulePrefix)
        else:
            return True, ""
    elif (scope == "Local" and not functionName.startswith("_")):
        return False, conformanceErrorFormatMap["INVALID_STATIC_NAME"] % ('"' + functionName + '"')
    else:
        return True, ""

def isValidTypedefName(typePrefix, name, static):
    '''
    Determine if a given typedef name is valid (conforming) given the namespace and typename.
    '''
    originalName = name
    originalTypePrefix = typePrefix

    name = name.lower()
    typePrefix = typePrefix.lower()

    if ((not static) and name.startswith(typePrefix)) and originalName[0].isupper():
        return True, ""
    elif ((not static) and (not name.startswith(typePrefix))):
        return False, conformanceErrorFormatMap["INVALID_GLOBAL_TYPEDEF_NAME"] % ('"' + originalName + '"', originalTypePrefix)
    elif (static and name.startswith('_')):
        return True, ""
    else:
        return False, conformanceErrorFormatMap["INVALID_STATIC_TYPEDEF_NAME"] % ('"' + originalName + '"')

def isValidEnumName(typePrefix, name, values, static):
    '''
    Determine if a given enumeration name is valid (conforming) given the namespace and typename.
    '''
    originalName = name
    originalTypePrefix = typePrefix

    name = name.lower()
    typePrefix = typePrefix.lower()

    if ((not static) and name.startswith(typePrefix)) and originalName[0].isupper():
        pass
    elif ((not static) and (not name.startswith(typePrefix))):
        return False, conformanceErrorFormatMap["INVALID_GLOBAL_ENUM_NAME"] % ('"' + originalName + '"', originalTypePrefix)
    elif (static and name.startswith('_')):
        pass
    else:
        return False, conformanceErrorFormatMap["INVALID_STATIC_ENUM_NAME"] % ('"' + originalName + '"')

    for enumVal in values:
        if ((not static) and not enumVal.startswith(originalName)):
            return False, conformanceErrorFormatMap["INVALID_GLOBAL_ENUM_VALUE_NAME"] % ('"' + enumVal + '"', originalName)
    return True, ""

def getTypedefs(path, source):
    '''
    Retrieve the names of typedefs (excluding enums) in a given file by parsing the file for
    typedef specifications. This walks over every line in the file searching for each one,
    since we cannot extract enum names nicely using linux tools.
    '''
    typedefs = []
    pathToFile = os.path.join(path, source)
    if os.path.isfile(pathToFile):
        fin = open(os.path.join(path, source), 'r')
        lines = fin.readlines()
        i = 0 # LC
        while (i < len(lines)):
            line = lines[i].strip()
            if not line.startswith("//"):
                values = []
                if "typedef" in line and "enum" not in line: # go to the end of the typedef
                    if "{" in line:
                        while "}" not in line:
                            i = i + 1
                            line = lines[i].strip()
                        name = line.replace("}","").replace(";","").strip()
                        typedefs.append(name)
                    else:
                        splits = line.split(" ")
                        if "struct" in splits[1]:
                            name = splits[3].replace(";","")
                            typedefs.append(name.strip())
                        else:
                            pass
            i = i + 1
    return typedefs

def getEnumerations(path, source):
    '''
    Retrieve the names of enumerations in a given file by parsing the file for enum specifications.
    This walks over every line in the file searching for enums, since we cannot extract enum names
    nicely using linux tools.
    '''
    enums = []
    pathToFile = os.path.join(path, source)
    if os.path.isfile(pathToFile):
        fin = open(os.path.join(path, source), 'r')
        lines = fin.readlines()
        i = 0 # LC
        while (i < len(lines)):
            line = lines[i].strip()
            if not line.startswith("//"):
                values = []
                if "typedef enum" in line: # go to the end of the enumeration
                    while (i + 1 < len(lines) and line.find("}") < 0):
                        i = i + 1
                        line = lines[i].strip()
                        values.append(line) # append each string value
                    if (line.find("}") >= 0):
                        name = line.replace("}","").replace(";","")
                        values.pop(len(values) - 1)
                        enums.append((name.strip(), values))
            i = i + 1
    return enums

def getTypedefsFromFiles(fileInfoList):
    '''
    Get the typedefs from each file in the fileInfoList.

    Each element in fileInfoList is a tuple of the form (path, filename, staticTag),
    where staticTag is a flag used to indicate if the typedefs in said file should
    be treated as static.
    '''
    allTypedefs = []
    for (path, fileName, staticTag) in fileInfoList:
        typedefs = getTypedefs(path, fileName)
        for typedef in typedefs:
            allTypedefs.append((typedef, staticTag))
    return allTypedefs

def getEnumerationsFromFiles(fileInfoList):
    '''
    Get the enums from each file in the fileInfoList.

    Each element in fileInfoList is a tuple of the form (path, filename, staticTag),
    where staticTag is a flag used to indicate if the enums in said file should
    be treated as static.
    '''
    allEnums = []
    for (path, fileName, staticTag) in fileInfoList:
        enums = getEnumerations(path, fileName)
        for (enumName, values) in enums:
            allEnums.append((enumName, values, staticTag))
    return allEnums

class FunctionConformanceContainer():
    def __init__(self, module):
        self.path = module.getModulePath()
        self.module = module
        self.failedFunctions = []
        self.passedFunctions = []

        if (len(self.path) > 0):
            self.fullPath = self.path + os.sep + module.getCSourceName()
        else:
            self.fullPath = module.getCSourceName()

        self.computeConformance()

    def computeConformance(self):
        functionDictionary = {}
        objectFileName = self.module.getPathToObjectFile()
        sourceFileName = os.path.join(self.path, self.module.getCSourceName())
        temp = objectFileName
        if '.a' in temp: # If this is a path into an archive
            temp = temp.split('(')[0]
        if not os.path.isfile(temp):
            raise NoObjectFileException("You must compile " + str(sourceFileName) + " to generate a corresponding object or provide a special object file path")

        try:
            functionDictionary = getDarwinTestableFunctions(objectFileName)
        except:
            raise Exception("You must compile " + str(sourceFileName) + " to generate a corresponding object or provide a special object file path")

        namespace = self.module.getNamespace()
        modulePrefix = self.module.getModulePrefix()

        # Find all passing/failing functions
        if (namespace != None and modulePrefix != None):
            for scope in functionDictionary:
                for functionName in functionDictionary[scope]:
                    isValid, reason = isValidFunctionName(namespace, modulePrefix, functionName, scope)
                    if isValid:
                        self.addPassedFunction(functionName)
                    else:
                        self.addFailedFunction(functionName, reason)

    def containsMainFunction(self):
        for (functionName, reason) in self.failedFunctions:
            if (functionName.strip() == "main" or functionName.strip().startswith("main")):
                return True
        for functionName in self.passedFunctions:
            if (functionName.strip() == "main" or functionName.strip().startswith("main")):
                return True
        return False

    @staticmethod
    def getType():
        return "function-names"

    def addFailedFunction(self, function, reason):
        self.failedFunctions.append((function, reason))

    def getFailedFunctions(self):
        return self.failedFunctions

    def addPassedFunction(self, function):
        self.passedFunctions.append(function)

    def getPassedFunctions(self):
        return self.passedFunctions

    def analyzeConformance(self):
        '''
        Convert the raw pass/fail function results into a set of individual
        data points (finegrain results) and overall percentage.
        '''
        numPassed = len(self.passedFunctions)
        numFailed = len(self.failedFunctions)

        self.percentage = 100.0
        self.points = []

        if (numPassed + numFailed > 0): # skip invalid entries
            self.percentage = float(float(numPassed) / float(numFailed + numPassed)) * 100.0

            # Data point schema:
            #   namespace, moduleName, targetName, topic, line, col, score
            for fname in self.passedFunctions:
                data = ["function-name", fname, 100.0]
                self.points.append(data)

            for (fname, reason) in self.failedFunctions:
                data = ["function-name", fname, reason, 0.0]
                self.points.append(data)

    def getNumberOfPassed(self):
        return len(self.passedFunctions)

    def getNumberOfFailed(self):
        return len(self.failedFunctions)

    def totalCSV(self):
        return tuplesListToCSV(map(lambda point : [self.fullPath] + point, self.points))

    def totalText(self, distribution):
        formattedLines = tuplesListToPrettyText(self.points, distribution)
        return map(lambda formattedLine : self.fullPath + " " + formattedLine, formattedLines)

    def summaryCSV(self):
        line = [(self.getType(), self.percentage)]
        return tuplesListToCSV(line)

    def summaryText(self, distribution):
        line = [(self.getType(), self.percentage)]
        return tuplesListToPrettyText(line, distribution)

    def getScore(self):
        return (self.getType(), self.percentage)


class EnumConformanceContainer():
    def __init__(self, module):
        self.path = module.getModulePath()
        self.module = module
        self.failedEnums = []
        self.passedEnums = []

        if (len(self.path) > 0):
            self.fullPath = self.path + os.sep + module.getCSourceName()
        else:
            self.fullPath = module.getCSourceName()

        self.computeConformance()

    def computeConformance(self):
        sourceFileName = self.module.getCSourceName()
        headerFileName = self.module.getCHeaderName()

        enums = getEnumerationsFromFiles([(self.path, sourceFileName, True), (self.path, headerFileName, False)])
        modulePrefix = self.module.getModulePrefix()
        if (modulePrefix != None):
            for (enumName, values, staticTag) in enums:
                isValid, reason = isValidEnumName(modulePrefix, enumName, values, staticTag)
                if isValid:
                    self.addPassedEnum(enumName)
                else:
                    self.addFailedEnum(enumName, reason)

    @staticmethod
    def getType():
        return "enum-names"

    def addFailedEnum(self, enum, reason):
        self.failedEnums.append((enum, reason))

    def getFailedEnums(self):
        return self.failedEnums

    def addPassedEnum(self, enum):
        self.passedEnums.append(enum)

    def getPassedEnums(self):
        return self.passedEnums

    def analyzeConformance(self):
        '''
        Convert the raw pass/fail enum results into a set of individual
        data points (finegrain results) and overall percentage.
        '''
        self.enumPercentage = 100.0
        self.points = []
        numPassed = len(self.passedEnums)
        numFailed = len(self.failedEnums)

        if (numPassed + numFailed > 0):
            self.enumPercentage = float((float(numPassed) / float(numPassed + numFailed)) * 100)

            for ename in self.passedEnums:
                data = ["enum-name", ename, 100.0]
                self.points.append(data)

            for (ename, reason) in self.failedEnums:
                data = ["enum-name", ename, reason, 0.0]
                self.points.append(data)

    def getNumberOfPassed(self):
        return len(self.passedEnums)

    def getNumberOfFailed(self):
        return len(self.failedEnums)

    def totalCSV(self):
        return tuplesListToCSV(map(lambda point : [self.fullPath] + point, self.points))

    def totalText(self, distribution):
        formattedLines = tuplesListToPrettyText(self.points, distribution)
        return map(lambda formattedLine : self.fullPath + " " + formattedLine, formattedLines)

    def summaryCSV(self):
        line = [(self.getType(), self.enumPercentage)]
        return tuplesListToCSV(line)

    def summaryText(self, distribution):
        line = [(self.getType(), self.enumPercentage)]
        return tuplesListToPrettyText(line, distribution)

    def getScore(self):
        return (self.getType(), self.enumPercentage)

class TypedefConformanceContainer():
    def __init__(self, module):
        self.path = module.getModulePath()
        self.module = module
        self.failedTypedefs = []
        self.passedTypedefs = []

        if (len(self.path) > 0):
            self.fullPath = self.path + os.sep + module.getCSourceName()
        else:
            self.fullPath = module.getCSourceName()

        self.computeConformance()

    def computeConformance(self):
        sourceFileName = self.module.getCSourceName()
        headerFileName = self.module.getCHeaderName()

        typedefs = getTypedefsFromFiles([(self.path, sourceFileName, True), (self.path, headerFileName, False)])

        modulePrefix = self.module.getModulePrefix()
        if (modulePrefix != None):
            for (typedefName, staticTag) in typedefs:
                isValid, reason = isValidTypedefName(modulePrefix, typedefName, staticTag)
                if isValid:
                    self.addPassedTypedef(typedefName)
                else:
                    self.addFailedTypedef(typedefName, reason)

    @staticmethod
    def getType():
        return "typedef-names"

    def addFailedTypedef(self, typedef, reason):
        self.failedTypedefs.append((typedef, reason))

    def getFailedTypedefs(self):
        return self.failedTypedefs

    def addPassedTypedef(self, typedef):
        self.passedTypedefs.append(typedef)

    def getPassedTypedefs(self):
        return self.passedTypedefs

    def analyzeConformance(self):
        '''
        Convert the raw pass/fail typedef results into a set of individual
        data points (finegrain results) and overall percentage.
        '''
        self.points = []
        self.typedefPercentage = 100.0
        numPassed = len(self.passedTypedefs)
        numFailed = len(self.failedTypedefs)
        if (numPassed + numFailed > 0):
            self.typedefPercentage = float(float(numPassed) / float(numFailed + numPassed)) * 100

            for tName in self.passedTypedefs:
                data = ["typedef-name", tName, 100.0]
                self.points.append(data)

            for (tName, reason) in self.failedTypedefs:
                data = ["typedef-name", tName, reason, 0.0]
                self.points.append(data)

    def getNumberOfPassed(self):
        return len(self.passedTypedefs)

    def getNumberOfFailed(self):
        return len(self.failedTypedefs)

    def totalCSV(self):
        return tuplesListToCSV(map(lambda point : [self.fullPath] + point, self.points))

    def totalText(self, distribution):
        formattedLines = tuplesListToPrettyText(self.points, distribution)
        return map(lambda formattedLine : self.fullPath + " " + formattedLine, formattedLines)

    def summaryCSV(self):
        line = [(self.getType(), self.typedefPercentage)]
        return tuplesListToCSV(line)

    def summaryText(self, distribution):
        line = [(self.getType(), self.typedefPercentage)]
        return tuplesListToPrettyText(line, distribution)

    def getScore(self):
        return (self.getType(), self.typedefPercentage)

class ModuleConformanceContainer():
    '''
    This conformance container stores a collection of individual type naming
    conformance results within a particular module, and uses the information
    contained therein to provide total finegrain and summarized
    results of the conformance results for each type.
    '''

    def __init__(self, module):
        self.conformanceContainers = []
        self.path = module.getModulePath()
        self.module = module
        self.validName = False
        self.process = True

        if (len(self.path) > 0):
            self.fullPath = self.path + os.sep + module.getCSourceName()
        else:
            self.fullPath = module.getCSourceName()

    def setProcess(self, value):
        self.process = value

    def processModule(self):
        return self.process

    def addConformanceContainer(self, complianceContainer):
        self.conformanceContainers.append(complianceContainer)

    def analyzeConformance(self):
        for container in self.conformanceContainers:
            container.analyzeConformance()

    def getNumberOfPassed(self):
        tuples = []
        for container in self.conformanceContainers:
            tuples.append((container.getType(), container.getNumberOfPassed()))
        return tuples # list of (topic, # of passed)

    def getNumberOfFailed(self):
        tuples = []
        for container in self.conformanceContainers:
            tuples.append((container.getType(), container.getNumberOfFailed()))
        return tuples # list of (topic, # of failed)

    def totalCSV(self):
        csvTuples = []
        for container in self.conformanceContainers:
            csvTuples = csvTuples + container.totalCSV()
        return csvTuples

    def totalText(self, distribution):
        textTuples = []
        for container in self.conformanceContainers:
            textTuples = textTuples + container.totalText(distribution)
        return textTuples

    def summaryCSV(self):
        singleTuple = [self.fullPath]
        for container in self.conformanceContainers:
            csvGroup = container.summaryCSV()
            singleTuple = singleTuple + [csvGroup[-1]]
        return tuplesListToCSV([tuple(singleTuple)])

    def summaryText(self, distribution, divider=' '):
        formattedLine = self.fullPath
        for container in self.conformanceContainers:
            lineGroup = container.summaryText(distribution)[0].split(" ")
            formattedLine = formattedLine + divider + lineGroup[-2] + ' ' + lineGroup[-1]
        return [formattedLine]

    def getScores(self):
        scores = {}
        for container in self.conformanceContainers:
            scoreKey, scoreVal = container.getScore()
            scores[scoreKey] = scoreVal
        return scores

class ModuleSetConformanceContainer():
    '''
    This conformance container stores a collection of individual module naming
    conformance results, and uses the information contained therein to provide
    summaries of conformance results.
    '''

    def __init__(self):
        self.conformanceList = []

    def addConformanceContainer(self, container):
        self.conformanceList.append(container)

    def analyzeConformance(self):
        passed = {} # passed type-number bucket
        failed = {} # failed type-number bucket

        for container in self.conformanceList:
            passedSet = container.getNumberOfPassed()
            for (conformanceType, number) in passedSet:
                if (conformanceType in passed):
                    passed[conformanceType] = passed[conformanceType] + number
                else:
                    passed[conformanceType] = number
            failedSet = container.getNumberOfFailed()
            for (conformanceType, number) in failedSet:
                if (conformanceType in failed):
                    failed[conformanceType] = failed[conformanceType] + number
                else:
                    failed[conformanceType] = number

        self.typeConformancePercentages = {}
        for conformanceType in passed:
            total = passed[conformanceType] + failed[conformanceType]
            percentage = 100.0
            if (total > 0):
                percentage = (float(passed[conformanceType]) / float(total)) * 100.0
            self.typeConformancePercentages[conformanceType] = percentage

    def summaryCSV(self):
        collatedTuple = ["average-scores"]
        for conformanceType in self.typeConformancePercentages:
            collatedTuple.append(conformanceType) # append type
            collatedTuple.append(self.typeConformancePercentages[conformanceType]) # append percentage
        return tuplesListToCSV([tuple(collatedTuple)])

    def summaryText(self, distribution):
        formattedLine = "average-scores"
        for conformanceType in self.typeConformancePercentages:
            prettyTypeText = tuplesListToPrettyText([(conformanceType, self.typeConformancePercentages[conformanceType])])[0]
            formattedLine = formattedLine + " " + prettyTypeText
        return [formattedLine]

def computeModuleNameConformance(module):
    '''
    Compute the module name conformance. There is no container for this result
    since it's a simple boolean.
    '''
    namespace = module.getNamespace()
    moduleName = module.getModuleName()
    typeName = module.getTypeName()

    if (namespace != None and moduleName != None and typeName != None):
        return isValidModuleName(namespace, typeName, moduleName)
    else:
        return False

def computeModuleConformance(module):
    '''
    Compute the naming conformance results for an entire module,
    which includes conformance results for all types contained therein.
    '''
    moduleContainer = ModuleConformanceContainer(module)

    # Get the compliance results for functions, memorizing whether or not a main function was seen
    functionContainer = FunctionConformanceContainer(module)
    moduleContainer.addConformanceContainer(functionContainer)
    moduleContainer.setProcess(not functionContainer.containsMainFunction())

    # Now handle enums, typedefs, etc.
    moduleContainer.addConformanceContainer(EnumConformanceContainer(module))
    moduleContainer.addConformanceContainer(TypedefConformanceContainer(module))
    moduleContainer.setValidName = computeModuleNameConformance(module)

    # Now that we have the data, run over it to generate the results
    moduleContainer.analyzeConformance()

    return moduleContainer

def getConformanceHeaders():
    headers = [FunctionConformanceContainer.getType(), EnumConformanceContainer.getType(), TypedefConformanceContainer.getType()]
    return headers

def gradeAndPrint(targets, objectDirs, problemsOnly=False, printPrefix=""):
    if len(targets) < 1:
        print "No Files To Grade"
        return

    distribution = [99, 90]
    maxFileNameLength = max(max(map(lambda target: len(target), targets)), len("File Name"))

    moduleConformanceSet = ModuleSetConformanceContainer()
    headers = getConformanceHeaders()
    pformat = '{prefix}{:<{maxFileNameLength}}'
    nformat = pformat
    for header in headers:
        nformat = nformat + '{:>15}'
    print nformat.format('File Name', *headers, prefix=printPrefix, maxFileNameLength=maxFileNameLength)


    for target in targets:
        module = Module(target, objectDirs)
        if module.isTestSourceName():
            continue
        fileNamePrefix = module.getModuleName()
        path = module.getModulePath()
        try:
            moduleConformance = computeModuleConformance(module)
            if not moduleConformance.processModule():
                pass
            else:
                moduleConformanceSet.addConformanceContainer(moduleConformance)
                scores = moduleConformance.getScores()
                minScore = 100.0
                for key in scores:
                    score = scores[key]
                    if score < minScore:
                        minScore = score
                    scores[key] = '%3.1f'%score
                if problemsOnly and minScore == 100.0:
                    continue
                printVals=[]
                for hval in headers:
                    score = 'N/A'
                    if hval in scores:
                        score = scores[hval]
                    printVals.append(score)
                line = nformat.format(target, *printVals, prefix=printPrefix, maxFileNameLength=maxFileNameLength)
                LongBow.scorePrinter(distribution, minScore, line)
        except NoObjectFileException as e:
            eformat = pformat + "Could Not Grade: No .o file found for file"
            line =  eformat.format(target, prefix=printPrefix, maxFileNameLength=maxFileNameLength, msg=e)
            print LongBow.buildRed(line)
            pass
        except Exception as e:
            eformat = pformat + "Could Not Grade: {msg}"
            line =  eformat.format(target, prefix=printPrefix, maxFileNameLength=maxFileNameLength, msg=e)
            print LongBow.buildRed(line)
            pass
    moduleConformanceSet.analyzeConformance()


def commandLineMain(args, targets, objectDir):
    distribution = eval(args.distribution)
    moduleConformanceSet = ModuleSetConformanceContainer()

    summary = args.summary
    average = args.average
    finegrain = args.finegrain
    if not (summary or average or finegrain):
        summary = True

    objectDirs = [objectDir]
    for i in range(len(targets)):
        module = Module(targets[i], objectDirs)
        prefix = module.getModuleName()
        path = module.getModulePath()

        tb = None
        try:
            moduleConformance = computeModuleConformance(module)
            if not moduleConformance.processModule():
                print >> sys.stderr, "Skipping module " + str(prefix) + ": contains a `main` function"
            else:
                moduleConformanceSet.addConformanceContainer(moduleConformance)

                if summary:
                    if args.output == "text":
                        writeListToStream(moduleConformance.summaryText(distribution), sys.stdout)
                    else:
                        writeListToStream(moduleConformance.summaryCSV(), sys.stdout)

                if finegrain:
                    if args.output == "text":
                        writeListToStream(moduleConformance.totalText(distribution), sys.stdout)
                    else:
                        writeListToStream(moduleConformance.totalCSV(), sys.stdout)

        except Exception as e:
            tb = traceback.format_exc()
            print >> sys.stderr, "Error: can't analyze conformance of " + os.path.join(path, prefix) + ": " + str(e)
        finally:
            if tb != None and args.trace:
                print tb
        pass

    moduleConformanceSet.analyzeConformance()
    if average:
        if args.output == "text":
            writeListToStream(moduleConformanceSet.summaryText(distribution), sys.stdout)
        else:
            writeListToStream(moduleConformanceSet.summaryCSV(), sys.stdout)