buildLogAnalyzer.py

#!/usr/bin/env python3
# encoding: utf-8
"""
Created by Andreas Pfeiffer on 2008-08-05.
Copyright (c) 2008 CERN. All rights reserved.
"""
from __future__ import print_function
import sys, os, re, time
import getopt

if sys.version_info[0] == 3:

    def cmp(a, b):
        return (a > b) - (a < b)


def pkgCmp(a, b):
    if a.subsys == b.subsys:
        return cmp(a.pkg, b.pkg)
    else:
        return cmp(a.subsys, b.subsys)


# ================================================================================


class ErrorInfo(object):
    """keeps track of information for errors"""

    def __init__(self, errType, msg):
        super(ErrorInfo, self).__init__()
        self.errType = errType
        self.errMsg = msg


# ================================================================================


class PackageInfo(object):
    """keeps track of information for each package"""

    def __init__(self, subsys, pkg):
        super(PackageInfo, self).__init__()

        self.subsys = subsys
        self.pkg = pkg
        self.errInfo = []
        self.errSummary = {}
        self.errLines = {}
        self.warnOnly = False

    def addErrInfo(self, errInfo, lineNo):
        """docstring for addErr"""
        self.warnOnly = True
        if "Error" in errInfo.errType:
            self.warnOnly = False
        self.errInfo.append(errInfo)
        if errInfo.errType not in self.errSummary.keys():
            self.errSummary[errInfo.errType] = 1
        else:
            self.errSummary[errInfo.errType] += 1
        self.errLines[lineNo] = errInfo.errType

    def name(self):
        """docstring for name"""
        return self.subsys + "/" + self.pkg


# ================================================================================


class LogFileAnalyzer(object):
    """docstring for LogFileAnalyzer"""

    def __init__(
        self, topDirIn=".", topUrlIn="", verbose=-1, pkgsList=None, release=None, ignoreWarnings=[]
    ):
        super(LogFileAnalyzer, self).__init__()

        self.topDir = os.path.abspath(topDirIn)
        self.ignoreWarnings = ignoreWarnings
        self.topURL = topUrlIn
        if not pkgsList:
            pkgsList = "../../../../../src/PackageList.cmssw"
        if self.topURL != "":
            if self.topURL[-1] != "/":
                self.topURL += "/"
            if not release:
                release = self.topURL.split("/")[-3]  # TODO no error catching
        self.release = release
        self.pkgsList = pkgsList
        self.verbose = verbose

        self.tagList = {}

        self.nErrorInfo = {}
        self.nFailedPkgs = []
        self.packageList = []
        self.pkgOK = []
        self.pkgErr = []
        self.pkgWarn = []

        self.errorKeys = [
            "dictError",
            "compError",
            "linkError",
            "pythonError",
            "compWarning",
            "dwnlError",
            "miscError",
            "ignoreWarning",
        ]

        self.styleClass = {
            "dictError": "dictErr",
            "compError": "compErr",
            "linkError": "linkErr",
            "pythonError": "pyErr",
            "dwnlError": "dwnldErr",
            "miscError": "miscErr",
            "compWarning": "compWarn",
            "ignoreWarning": "compWarn",
            "ok": "ok",
        }

        # get the lists separately for "priority" treatment ...
        self.errMap = {}
        for key in self.errorKeys:
            self.errMap[key] = []

        # get the lists separately for summary accounting
        self.errMapAll = {}
        for key in self.errorKeys:
            self.errMapAll[key] = []

    def getDevelAdmins(self):
        """
        get list of admins and developers from .admin/developers file in each package
        needed for sending out e-mails
        """
        pass

    def getTagList(self):
        import glob

        srcdir = os.path.dirname(self.pkgsList) + "/"
        for pkg in glob.glob(srcdir + "*/*"):
            pkg = pkg.replace(srcdir, "")
            self.tagList[pkg] = ""
        return

    def analyze(self):
        """loop over all packages and analyze the log files"""

        os.chdir(self.topDir)

        self.getTagList()

        import glob

        start = time.time()
        packageList = glob.glob("*/*/build.log")

        if self.verbose > 0:
            print("going to analyze ", len(packageList), "files.")

        for logFile in packageList:
            self.analyzeFile(logFile)

        pkgDone = []
        for pkg in self.packageList:
            if pkg.warnOnly:
                self.pkgWarn.append(pkg)
            if pkg.errInfo:
                self.pkgErr.append(pkg)
                for key in self.errorKeys:
                    if key in pkg.errSummary.keys():
                        self.errMapAll[key].append(pkg)
                    if key in pkg.errSummary.keys() and pkg not in pkgDone:
                        self.errMap[key].append(pkg)
                        pkgDone.append(pkg)
            else:
                self.pkgOK.append(pkg)

        stop = time.time()
        self.anaTime = stop - start
        pass

    def report(self):
        """show collected info"""

        print("analyzed ", len(self.packageList), "log files in", str(self.anaTime), "sec.")
        totErr = 0
        for key, val in self.nErrorInfo.items():
            totErr += int(val)

        print("found ", totErr, " errors and warnings in total, by type:")
        for key, val in self.nErrorInfo.items():
            print("\t", key, " : ", val, " in ", len(self.errMapAll[key]), "packages")

        print("found ", len(self.pkgOK), "packages without errors/warnings.")
        print(
            "found ",
            len(self.pkgErr),
            "packages with errors or warnings, ",
            len(self.pkgWarn),
            " with warnings only.",
        )
        start = time.time()
        self.makeHTMLSummaryPage()
        for key in self.errorKeys:
            pkgList = sorted(self.errMap[key], key=lambda x: x.name())
            for pkg in pkgList:
                self.makeHTMLLogFile(pkg)
        for pkg in self.pkgOK:
            self.makeHTMLLogFile(pkg)
        stop = time.time()
        print("creating html pages took ", str(stop - start), "sec.")

    def makeHTMLSummaryPage(self):
        keyList = self.errorKeys

        htmlDir = "../html/"
        if not os.path.exists(htmlDir):
            os.makedirs(htmlDir)

        htmlFileName = htmlDir + "index.html"
        htmlFile = open(htmlFileName, "w")
        htmlFile.write("<html>\n")
        htmlFile.write("<head>\n")
        htmlFile.write(
            '<link rel="stylesheet" type="text/css" href="http://cern.ch/cms-sdt/intbld.css">\n'
        )
        htmlFile.write("<title>Summary for build of " + self.release + "</title>")
        htmlFile.write("</head>\n")
        htmlFile.write("<body>\n")
        htmlFile.write("<h2>Summary for build of " + self.release + "</h2>\n")
        htmlFile.write("<h3>Platform: " + os.environ["SCRAM_ARCH"] + "</h3>\n")
        htmlFile.write(
            "analyzed "
            + str(len(self.packageList))
            + " log files in "
            + str(self.anaTime)
            + " sec.\n"
        )
        totErr = 0
        for key, val in self.nErrorInfo.items():
            totErr += int(val)

        htmlFile.write(
            "<h3> found " + str(totErr) + " errors and warnings in total, by type: </h3>\n"
        )
        htmlFile.write('<table border="1" cellpadding="10">')
        htmlFile.write(
            "<tr> <td><b>error type</b></td><td><b> # packages </b></td><td><b> total # errors </b></td></tr>\n"
        )
        for key in keyList:
            val = 0
            try:
                val = self.nErrorInfo[key]
            except KeyError:
                pass
            nPkgE = len(self.errMapAll[key])
            htmlFile.write(
                '<tr class="'
                + self.styleClass[key]
                + '"> <td>'
                + key
                + " </td><td> "
                + str(nPkgE)
                + "</td><td> "
                + str(val)
                + "</td></tr>\n"
            )
        htmlFile.write("<table>")

        htmlFile.write('<table border="1">\n')
        htmlFile.write(" <tr>")
        htmlFile.write("<th>")
        htmlFile.write("status")
        htmlFile.write("</th>")
        htmlFile.write("<th>")
        htmlFile.write("subsystem/package")
        htmlFile.write("</th>")
        for key in keyList:
            htmlFile.write("<th>")
            htmlFile.write(key)
            htmlFile.write("</th>")
        htmlFile.write(" </tr> \n")

        topLogString = self.topURL

        for key in keyList:
            pkgList = sorted(self.errMap[key], key=lambda x: x.name())

            for pkg in pkgList:
                if not pkg.name() in self.tagList:
                    continue
                styleClass = "ok"
                for cKey in self.errorKeys:
                    if styleClass == "ok" and cKey in pkg.errSummary.keys():
                        styleClass = self.styleClass[cKey]
                htmlFile.write(" <tr>")
                htmlFile.write('<td class="' + styleClass + '">&nbsp;</td>')
                htmlFile.write("<td>")
                link = (
                    ' <a href="'
                    + topLogString
                    + pkg.name()
                    + '/log.html">'
                    + pkg.name()
                    + "   "
                    + self.tagList[pkg.name()]
                    + "  </a> "
                )
                htmlFile.write(link)
                htmlFile.write("</td>")
                for pKey in keyList:
                    htmlFile.write("<td>")
                    if pKey in pkg.errSummary.keys():
                        if sys.version_info[0] < 3:
                            htmlFile.write(str(pkg.errSummary[pKey]).decode("ascii", "ignore"))
                        else:
                            htmlFile.write(str(pkg.errSummary[pKey]))
                    else:
                        htmlFile.write(" - ")
                    htmlFile.write("</td>")

                htmlFile.write("</tr>\n")

        pkgList = sorted(self.pkgOK, key=lambda x: x.name())

        for pkg in pkgList:
            if not pkg.name() in self.tagList:
                continue
            htmlFile.write(" <tr>")
            htmlFile.write('<td class="ok">&nbsp;</td>')
            htmlFile.write("<td>")
            link = (
                ' <a href="'
                + topLogString
                + pkg.name()
                + '/log.html">'
                + pkg.name()
                + "   "
                + self.tagList[pkg.name()]
                + "</a> "
            )
            htmlFile.write(link)
            htmlFile.write("</td>")
            for pKey in self.errorKeys:
                htmlFile.write("<td>")
                htmlFile.write(" - ")
                htmlFile.write("</td>")
            htmlFile.write("</tr>\n")

        htmlFile.write("</table>\n")
        htmlFile.write("</body>\n")
        htmlFile.write("</html>\n")

        htmlFile.close()

        # write out all info also as pkl files so we can re-use it:
        from pickle import Pickler

        summFile = open(htmlDir + "/" + "logAnalysis.pkl", "wb")
        pklr = Pickler(summFile, protocol=2)
        pklr.dump([self.release, os.environ["SCRAM_ARCH"], self.anaTime])
        pklr.dump(self.errorKeys)
        pklr.dump(self.nErrorInfo)
        pklr.dump(self.errMapAll)
        pklr.dump(self.packageList)
        pklr.dump(self.topURL)
        pklr.dump(self.errMap)
        pklr.dump(self.tagList)
        pklr.dump(self.pkgOK)
        summFile.close()

        return

    def makeHTMLLogFile(self, pkg):
        """docstring for makeHTMLFile"""
        linePartsUrl = re.compile(
            r"(?P<full_path>(?:.*/"
            + self.release
            + r"/)?src(?P<file>/[^:(]+)[:(](?P<line>\d+)\)?):"
        )

        if not pkg.name() in self.tagList:
            return
        htmlDir = "../html/" + pkg.name() + "/"
        if not os.path.exists(htmlDir):
            os.makedirs(htmlDir)
        htmlFileName = htmlDir + "log.html"

        logFileName = pkg.name() + "/build.log"
        logFile = open(logFileName, "r")
        htmlFile = open(htmlFileName, "w")
        htmlFile.write("<html>\n")
        htmlFile.write("<head>\n")
        htmlFile.write('<link rel="stylesheet" type="text/css" href="/SDT/html//css/intbld.css">')
        htmlFile.write("<title>Log File for " + pkg.name() + "</title>")
        htmlFile.write("</head>\n")
        htmlFile.write("<body>\n")
        htmlFile.write(
            "<h2>Log File for " + pkg.name() + "   " + self.tagList[pkg.name()] + "</h2>\n"
        )
        htmlFile.write("<pre>\n")
        lineNo = -1
        for line in logFile.readlines():
            lineNo += 1
            # HTML sanitisation:
            newLine = line.replace(
                "&", "&amp;"
            )  # do this first to not escape it again in the next subs
            newLine = newLine.replace("<", "&lt;").replace(">", "&gt;")
            if lineNo in pkg.errLines.keys():
                m = linePartsUrl.match(newLine.strip())
                if m:
                    url = (
                        "https://github.com/cms-sw/cmssw/blob/"
                        + self.release
                        + m.group("file")
                        + "#L"
                        + m.group("line")
                    )

                    newLine = newLine.replace(
                        m.group("full_path"),
                        '<a href="' + url + '">' + m.group("full_path") + "</a>",
                        1,
                    )
                newLine = (
                    "<span class="
                    + self.styleClass[pkg.errLines[lineNo]]
                    + "> <b> "
                    + newLine
                    + " </b></span>"
                )
            if sys.version_info[0] < 3:
                htmlFile.write(newLine.decode("ascii", "ignore"))
            else:
                htmlFile.write(newLine)
        htmlFile.write("</pre>\n")
        htmlFile.write("</body>\n")
        htmlFile.write("</html>\n")
        htmlFile.close()

    def analyzeFile(self, fileNameIn):
        """read in file and check for errors"""
        subsys, pkg, logFile = fileNameIn.split("/")

        if self.verbose > 5:
            print("analyzing file : ", fileNameIn)

        fileIn = open(fileNameIn, "r")
        shLib = "so"
        if os.uname()[0] == "Darwin":
            shLib = "dylib"
        errorInf = [
            {str("^.*? cannot find -l(.*?)$"): ["linkError", 'missing library "%s"']},
            {
                str(
                    "^gmake: \\*\\*\\* .*?/src/"
                    + subsys
                    + "/"
                    + pkg
                    + "/src/"
                    + subsys
                    + pkg
                    + "/classes_rflx\\.cpp"
                ): ["dictError", "for package dictionary"]
            },
            {
                str(
                    "^gmake: \\*\\*\\* .*?/src/"
                    + subsys
                    + "/"
                    + pkg
                    + "/src/"
                    + subsys
                    + pkg
                    + "/.*?\\."
                    + shLib
                ): ["linkError", "for package library"]
            },
            {
                str(
                    "^gmake: \\*\\*\\* .*?/src/"
                    + subsys
                    + "/"
                    + pkg
                    + "/src/"
                    + subsys
                    + pkg
                    + "/.*?\\.o"
                ): ["compError", "for package library"]
            },
            {
                str("^gmake: \\*\\*\\* .*?/src/" + subsys + "/" + pkg + "/bin/(.*?)/.*?\\.o"): [
                    "compError",
                    "for executable %s",
                ]
            },
            {
                str("^gmake: \\*\\*\\* .*?/src/" + subsys + "/" + pkg + "/bin/(.*?)/\1"): [
                    "linkError",
                    "for executable %s",
                ]
            },
            {
                str(
                    "^gmake: \\*\\*\\* .*?/src/"
                    + subsys
                    + "/"
                    + pkg
                    + "/bin/(.*?)/lib\1\\."
                    + shLib
                ): ["linkError", "for shared library %s in bin"]
            },
            {
                str(
                    "^gmake: \\*\\*\\* .*?/src/"
                    + subsys
                    + "/"
                    + pkg
                    + "/test/stubs/lib(.*?)\\."
                    + shLib
                ): ["linkError", "for shared library %s in test/stubs"]
            },
            {
                str(
                    "^gmake: \\*\\*\\* .*?/src/"
                    + subsys
                    + "/"
                    + pkg
                    + "/test/(.*?)/.*?\\."
                    + shLib
                ): ["linkError", "for shared library %s in test"]
            },
            {
                str("^gmake: \\*\\*\\* .*?/src/" + subsys + "/" + pkg + "/test/stubs/.*?\\.o"): [
                    "compError",
                    "for library in test/stubs",
                ]
            },
            {
                str("^gmake: \\*\\*\\* .*?/src/" + subsys + "/" + pkg + "/test/(.*?)/.*?\\.o"): [
                    "compError",
                    "for executable %s in test",
                ]
            },
            {
                str(
                    "^gmake: \\*\\*\\* .*?/src/" + subsys + "/" + pkg + "/test/(.*?)\\." + shLib
                ): [
                    "linkError",
                    "for shared library %s in test",
                ]
            },
            {
                str("^gmake: \\*\\*\\* .*?/src/" + subsys + "/" + pkg + "/test/(.*?)\\.o"): [
                    "compError",
                    "for executable %s in test",
                ]
            },
            {
                str("^gmake: \\*\\*\\* .*?/src/" + subsys + "/" + pkg + "/test/(.*?)/\1"): [
                    "linkError",
                    "for executable %s in test",
                ]
            },
            {
                str(
                    "^gmake: \\*\\*\\* .*?/src/" + subsys + "/" + pkg + "/plugins/(.*?)/.*?\\.o"
                ): [
                    "compError",
                    "for plugin %s in plugins",
                ]
            },
            {
                str(
                    "^gmake: \\*\\*\\* .*?/src/"
                    + subsys
                    + "/"
                    + pkg
                    + "/plugins/(.*?)/lib.*?\\."
                    + shLib
                ): ["linkError", "for plugin library %s in plugins"]
            },
            {
                str("^ *\\*\\*\\* Break \\*\\*\\* illegal instruction"): [
                    "compError",
                    "Break illegal instruction",
                ]
            },
            {str("^AttributeError: .*"): ["pythonError", "importing another module"]},
            {str("^ImportError: .*"): ["pythonError", "importing another module"]},
            {str("^SyntaxError: .*"): ["pythonError", "syntax error in module"]},
            {str("^NameError: .*"): ["pythonError", "name error in module"]},
            {str("^TypeError: .*"): ["pythonError", "type error in module"]},
            {str("^ValueError: .*"): ["pythonError", "value error in module"]},
            {
                str(
                    "^gmake: \\*\\*\\* .*?/src/" + subsys + "/" + pkg + "/test/data/download\\.url"
                ): [
                    "dwnlError",
                    "for file in data/download.url in test",
                ]
            },
            {
                str(
                    "^ *(/.*?/"
                    + self.release
                    + "/|)src/"
                    + subsys
                    + "/"
                    + pkg
                    + ".*?\\:\\d*\\: warning: "
                ): ["compWarning", "for file in package"]
            },
            {
                str("^ *(/.*?/" + self.release + "/|)src/.*?\\:\\d+\\: warning: "): [
                    "compWarning",
                    "for file in release",
                ]
            },
            {
                str(
                    "^ *(/.*?/"
                    + self.release
                    + "/|)src/.*?\\([0-9]+\\)\\: warning #[0-9]+-[A-Z]: "
                ): [
                    "compWarning",
                    "for file in release",
                ]
            },
            {str("^Warning: "): ["compWarning", "for file in package"]},
            {
                str(
                    "^ *(/.*?/"
                    + self.release
                    + "/|)src/"
                    + subsys
                    + "/"
                    + pkg
                    + ".*?\\:\\d+\\: error: "
                ): ["compError", "for file in package"]
            },
            {
                str("^ *(/.*?/" + self.release + "/|)src/.*?\\:\\d+\\: error: "): [
                    "compError",
                    "for file in release",
                ]
            },
            {str("^.*?\\:\\d+\\: error: "): ["compError", "for file in externals"]},
            {
                str(
                    "^ *tmp/.*?/src/"
                    + subsys
                    + "/"
                    + pkg
                    + "/src/(.*?)/lib.*?\\."
                    + shLib
                    + "\\: undefined reference to .*"
                ): ["linkError", "for package library %s "]
            },
            {
                str(
                    "^ *tmp/.*?/src/"
                    + subsys
                    + "/"
                    + pkg
                    + "/plugins/(.*?)/lib.*?\\."
                    + shLib
                    + "\\: undefined reference to .*"
                ): ["linkError", "for plugin library %s in plugins"]
            },
            {
                str("error: class .+ has a different checksum for ClassVersion"): [
                    "compError",
                    "for a different checksum for ClassVersion",
                ]
            },
            {
                str("^.*: (more undefined references to|undefined reference to).*"): [
                    "compError",
                    "Missing symbols in a package",
                ]
            },
        ]

        miscErrRe = re.compile("^gmake: \\*\\*\\* (.*)$")
        genericLinkErrRe = re.compile(
            "^gmake: \\*\\*\\* \\[tmp/.*?/lib.*?" + shLib + "\\] Error 1"
        )

        if "_gcc46" in os.environ["SCRAM_ARCH"]:
            errorInf.append(
                {str("^.*?:\\d+\\: warning\\: "): ["compWarning", "from external in package"]}
            )
        else:
            errorInf.append(
                {str("^.*?:\\d+\\: warning\\: "): ["ignoreWarning", "from external in package"]}
            )
            errorInf.append(
                {str("^.*?ERROR:Private Header:"): ["compError", "Private header usage."]}
            )
        errors = []
        for errI in errorInf:
            for err, info in errI.items():
                errors.append({re.compile(err): info})

        pkgInfo = PackageInfo(subsys, pkg)
        lineNo = -1
        for line in fileIn:
            lineNo += 1
            errFound = False
            for errI in errors:
                isMatched = False
                for errRe, info in errI.items():
                    errMatch = errRe.match(line)
                    if errMatch:
                        errFound = True
                        isMatched = True
                        errTyp, msg = info
                        if (
                            self.ignoreWarnings
                            and (errTyp == "compWarning")
                            and [w for w in self.ignoreWarnings if w in line]
                        ):
                            errTyp = "ignoreWarning"
                        if "%s" in msg:
                            msg = info[1] % errMatch.groups(1)
                        if errTyp in self.nErrorInfo.keys():
                            self.nErrorInfo[errTyp] += 1
                        else:
                            self.nErrorInfo[errTyp] = 1
                        pkgInfo.addErrInfo(ErrorInfo(errTyp, msg), lineNo)
                        break
                if isMatched:
                    break
            if not errFound:
                miscErrMatch = miscErrRe.match(line)
                if miscErrMatch:
                    if not genericLinkErrRe.match(line):
                        errTyp = "miscError"
                        msg = "Unknown error found: %s" % miscErrMatch.groups(1)
                        if errTyp in self.nErrorInfo.keys():
                            self.nErrorInfo[errTyp] += 1
                        else:
                            self.nErrorInfo[errTyp] = 1
                        pkgInfo.addErrInfo(ErrorInfo(errTyp, msg), lineNo)

        fileIn.close()

        self.packageList.append(pkgInfo)

        return


# ================================================================================

help_message = """
     -h, --help          : print this message
     -l, --logDir  <dir> : the path to the dir with the log files to analyze
     -r, --release <name>: Release version
     -p, --pkgList <file>: Path to PackageList.cmssw file
     -t, --topURL  <url> : the base URL to use for generating the html files
     -v, --verbose <lvl> : set verbosity level, the higher the number, the more verbose printout you will get

Example:
when run in: /build/intBld/rc/wed-21/CMSSW_3_1_X_2009-07-08-2100/tmp/slc4_ia32_gcc345/cache/log/src as:
buildLogAnalyzer.py http://cern.ch/cms-sdt/rc/slc4_ia32_gcc345/www/wed/3.1-wed-21/CMSSW_3_1_X_2009-07-08-2100/new/
the script will produce the html version of the log files of the IB and write them into:
/build/intBld/rc/wed-21/CMSSW_3_1_X_2009-07-08-2100/tmp/slc4_ia32_gcc345/cache/log/html/

"""


class Usage(Exception):
    def __init__(self, msg):
        self.msg = msg


def main(argv=None):
    logDir = "."
    topURL = "./"
    verbose = -1
    pkgList = os.getenv("CMSSW_BASE", None)
    if pkgList:
        pkgList += "/src/PackageList.cmssw"
    rel = os.getenv("CMSSW_VERSION", "master")
    igWarning = []
    if argv is None:
        argv = sys.argv

    try:
        try:
            opts, args = getopt.getopt(
                argv[1:],
                "hv:l:t:p:r:",
                [
                    "help",
                    "verbose=",
                    "logDir=",
                    "topURL=",
                    "pkgList=",
                    "release=",
                    "ignoreWarning=",
                ],
            )
        except getopt.error as msg:
            raise Usage(msg)

        # option processing
        for option, value in opts:
            if option in ("-v", "--verbose"):
                verbose = int(value)
            if option in ("-h", "--help"):
                raise Usage(help_message)
            if option in ("-l", "--logDir"):
                logDir = value
            if option in ("-r", "--release"):
                rel = value
            if option in ("-p", "--pkgList"):
                pkgList = value
            if option in ("-t", "--topURL"):
                topURL = value
            if option == "--ignoreWarning":
                igWarning = [w.strip() for w in value.split(",") if w.strip()]

        if not topURL:
            raise Usage(help_message)

        if not os.path.exists(logDir):
            return

        lfa = LogFileAnalyzer(logDir, topURL, verbose, pkgList, rel, igWarning)
        lfa.analyze()
        lfa.report()

    except Usage as err:
        print(sys.argv[0].split("/")[-1] + ": " + str(err.msg), file=sys.stderr)
        print("\t for help use --help", file=sys.stderr)
        return 2


if __name__ == "__main__":
    sys.exit(main(sys.argv))