563 lines
20 KiB
Python
563 lines
20 KiB
Python
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#!/usr/bin/env python
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"""
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Static Analyzer qualification infrastructure.
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The goal is to test the analyzer against different projects, check for failures,
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compare results, and measure performance.
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Repository Directory will contain sources of the projects as well as the
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information on how to build them and the expected output.
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Repository Directory structure:
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- ProjectMap file
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- Historical Performance Data
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- Project Dir1
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- ReferenceOutput
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- Project Dir2
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- ReferenceOutput
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..
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To test the build of the analyzer one would:
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- Copy over a copy of the Repository Directory. (TODO: Prefer to ensure that
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the build directory does not pollute the repository to min network traffic).
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- Build all projects, until error. Produce logs to report errors.
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- Compare results.
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The files which should be kept around for failure investigations:
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RepositoryCopy/Project DirI/ScanBuildResults
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RepositoryCopy/Project DirI/run_static_analyzer.log
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Assumptions (TODO: shouldn't need to assume these.):
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The script is being run from the Repository Directory.
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The compiler for scan-build and scan-build are in the PATH.
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export PATH=/Users/zaks/workspace/c2llvm/build/Release+Asserts/bin:$PATH
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For more logging, set the env variables:
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zaks:TI zaks$ export CCC_ANALYZER_LOG=1
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zaks:TI zaks$ export CCC_ANALYZER_VERBOSE=1
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"""
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import CmpRuns
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import os
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import csv
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import sys
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import glob
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import math
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import shutil
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import time
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import plistlib
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from subprocess import check_call, CalledProcessError
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#------------------------------------------------------------------------------
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# Helper functions.
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#------------------------------------------------------------------------------
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def detectCPUs():
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"""
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Detects the number of CPUs on a system. Cribbed from pp.
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"""
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# Linux, Unix and MacOS:
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if hasattr(os, "sysconf"):
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if os.sysconf_names.has_key("SC_NPROCESSORS_ONLN"):
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# Linux & Unix:
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ncpus = os.sysconf("SC_NPROCESSORS_ONLN")
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if isinstance(ncpus, int) and ncpus > 0:
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return ncpus
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else: # OSX:
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return int(capture(['sysctl', '-n', 'hw.ncpu']))
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# Windows:
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if os.environ.has_key("NUMBER_OF_PROCESSORS"):
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ncpus = int(os.environ["NUMBER_OF_PROCESSORS"])
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if ncpus > 0:
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return ncpus
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return 1 # Default
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def which(command, paths = None):
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"""which(command, [paths]) - Look up the given command in the paths string
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(or the PATH environment variable, if unspecified)."""
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if paths is None:
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paths = os.environ.get('PATH','')
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# Check for absolute match first.
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if os.path.exists(command):
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return command
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# Would be nice if Python had a lib function for this.
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if not paths:
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paths = os.defpath
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# Get suffixes to search.
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# On Cygwin, 'PATHEXT' may exist but it should not be used.
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if os.pathsep == ';':
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pathext = os.environ.get('PATHEXT', '').split(';')
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else:
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pathext = ['']
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# Search the paths...
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for path in paths.split(os.pathsep):
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for ext in pathext:
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p = os.path.join(path, command + ext)
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if os.path.exists(p):
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return p
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return None
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# Make sure we flush the output after every print statement.
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class flushfile(object):
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def __init__(self, f):
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self.f = f
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def write(self, x):
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self.f.write(x)
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self.f.flush()
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sys.stdout = flushfile(sys.stdout)
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def getProjectMapPath():
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ProjectMapPath = os.path.join(os.path.abspath(os.curdir),
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ProjectMapFile)
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if not os.path.exists(ProjectMapPath):
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print "Error: Cannot find the Project Map file " + ProjectMapPath +\
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"\nRunning script for the wrong directory?"
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sys.exit(-1)
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return ProjectMapPath
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def getProjectDir(ID):
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return os.path.join(os.path.abspath(os.curdir), ID)
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def getSBOutputDirName(IsReferenceBuild) :
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if IsReferenceBuild == True :
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return SBOutputDirReferencePrefix + SBOutputDirName
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else :
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return SBOutputDirName
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#------------------------------------------------------------------------------
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# Configuration setup.
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#------------------------------------------------------------------------------
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# Find Clang for static analysis.
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Clang = which("clang", os.environ['PATH'])
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if not Clang:
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print "Error: cannot find 'clang' in PATH"
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sys.exit(-1)
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# Number of jobs.
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Jobs = int(math.ceil(detectCPUs() * 0.75))
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# Project map stores info about all the "registered" projects.
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ProjectMapFile = "projectMap.csv"
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# Names of the project specific scripts.
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# The script that needs to be executed before the build can start.
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CleanupScript = "cleanup_run_static_analyzer.sh"
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# This is a file containing commands for scan-build.
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BuildScript = "run_static_analyzer.cmd"
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# The log file name.
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LogFolderName = "Logs"
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BuildLogName = "run_static_analyzer.log"
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# Summary file - contains the summary of the failures. Ex: This info can be be
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# displayed when buildbot detects a build failure.
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NumOfFailuresInSummary = 10
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FailuresSummaryFileName = "failures.txt"
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# Summary of the result diffs.
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DiffsSummaryFileName = "diffs.txt"
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# The scan-build result directory.
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SBOutputDirName = "ScanBuildResults"
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SBOutputDirReferencePrefix = "Ref"
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# The list of checkers used during analyzes.
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# Currently, consists of all the non experimental checkers, plus a few alpha
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# checkers we don't want to regress on.
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Checkers="alpha.unix.SimpleStream,alpha.security.taint,alpha.cplusplus.NewDeleteLeaks,core,cplusplus,deadcode,security,unix,osx"
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Verbose = 1
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#------------------------------------------------------------------------------
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# Test harness logic.
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#------------------------------------------------------------------------------
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# Run pre-processing script if any.
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def runCleanupScript(Dir, PBuildLogFile):
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ScriptPath = os.path.join(Dir, CleanupScript)
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if os.path.exists(ScriptPath):
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try:
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if Verbose == 1:
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print " Executing: %s" % (ScriptPath,)
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check_call("chmod +x %s" % ScriptPath, cwd = Dir,
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stderr=PBuildLogFile,
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stdout=PBuildLogFile,
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shell=True)
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check_call(ScriptPath, cwd = Dir, stderr=PBuildLogFile,
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stdout=PBuildLogFile,
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shell=True)
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except:
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print "Error: The pre-processing step failed. See ", \
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PBuildLogFile.name, " for details."
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sys.exit(-1)
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# Build the project with scan-build by reading in the commands and
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# prefixing them with the scan-build options.
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def runScanBuild(Dir, SBOutputDir, PBuildLogFile):
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BuildScriptPath = os.path.join(Dir, BuildScript)
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if not os.path.exists(BuildScriptPath):
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print "Error: build script is not defined: %s" % BuildScriptPath
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sys.exit(-1)
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SBOptions = "--use-analyzer " + Clang + " "
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SBOptions += "-plist-html -o " + SBOutputDir + " "
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SBOptions += "-enable-checker " + Checkers + " "
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SBOptions += "--keep-empty "
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# Always use ccc-analyze to ensure that we can locate the failures
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# directory.
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SBOptions += "--override-compiler "
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try:
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SBCommandFile = open(BuildScriptPath, "r")
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SBPrefix = "scan-build " + SBOptions + " "
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for Command in SBCommandFile:
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Command = Command.strip()
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# If using 'make', auto imply a -jX argument
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# to speed up analysis. xcodebuild will
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# automatically use the maximum number of cores.
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if (Command.startswith("make ") or Command == "make") and \
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"-j" not in Command:
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Command += " -j%d" % Jobs
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SBCommand = SBPrefix + Command
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if Verbose == 1:
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print " Executing: %s" % (SBCommand,)
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check_call(SBCommand, cwd = Dir, stderr=PBuildLogFile,
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stdout=PBuildLogFile,
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shell=True)
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except:
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print "Error: scan-build failed. See ",PBuildLogFile.name,\
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" for details."
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raise
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def hasNoExtension(FileName):
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(Root, Ext) = os.path.splitext(FileName)
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if ((Ext == "")) :
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return True
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return False
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def isValidSingleInputFile(FileName):
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(Root, Ext) = os.path.splitext(FileName)
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if ((Ext == ".i") | (Ext == ".ii") |
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(Ext == ".c") | (Ext == ".cpp") |
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(Ext == ".m") | (Ext == "")) :
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return True
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return False
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# Run analysis on a set of preprocessed files.
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def runAnalyzePreprocessed(Dir, SBOutputDir, Mode):
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if os.path.exists(os.path.join(Dir, BuildScript)):
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print "Error: The preprocessed files project should not contain %s" % \
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BuildScript
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raise Exception()
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CmdPrefix = Clang + " -cc1 -analyze -analyzer-output=plist -w "
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CmdPrefix += "-analyzer-checker=" + Checkers +" -fcxx-exceptions -fblocks "
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if (Mode == 2) :
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CmdPrefix += "-std=c++11 "
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PlistPath = os.path.join(Dir, SBOutputDir, "date")
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FailPath = os.path.join(PlistPath, "failures");
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os.makedirs(FailPath);
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for FullFileName in glob.glob(Dir + "/*"):
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FileName = os.path.basename(FullFileName)
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Failed = False
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# Only run the analyzes on supported files.
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if (hasNoExtension(FileName)):
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continue
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if (isValidSingleInputFile(FileName) == False):
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print "Error: Invalid single input file %s." % (FullFileName,)
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raise Exception()
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# Build and call the analyzer command.
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OutputOption = "-o " + os.path.join(PlistPath, FileName) + ".plist "
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Command = CmdPrefix + OutputOption + os.path.join(Dir, FileName)
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LogFile = open(os.path.join(FailPath, FileName + ".stderr.txt"), "w+b")
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try:
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if Verbose == 1:
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print " Executing: %s" % (Command,)
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check_call(Command, cwd = Dir, stderr=LogFile,
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stdout=LogFile,
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shell=True)
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except CalledProcessError, e:
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print "Error: Analyzes of %s failed. See %s for details." \
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"Error code %d." % \
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(FullFileName, LogFile.name, e.returncode)
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Failed = True
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finally:
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LogFile.close()
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# If command did not fail, erase the log file.
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if Failed == False:
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os.remove(LogFile.name);
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def buildProject(Dir, SBOutputDir, ProjectBuildMode, IsReferenceBuild):
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TBegin = time.time()
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BuildLogPath = os.path.join(SBOutputDir, LogFolderName, BuildLogName)
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print "Log file: %s" % (BuildLogPath,)
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print "Output directory: %s" %(SBOutputDir, )
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# Clean up the log file.
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if (os.path.exists(BuildLogPath)) :
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RmCommand = "rm " + BuildLogPath
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if Verbose == 1:
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print " Executing: %s" % (RmCommand,)
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check_call(RmCommand, shell=True)
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# Clean up scan build results.
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if (os.path.exists(SBOutputDir)) :
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RmCommand = "rm -r " + SBOutputDir
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if Verbose == 1:
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print " Executing: %s" % (RmCommand,)
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check_call(RmCommand, shell=True)
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assert(not os.path.exists(SBOutputDir))
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os.makedirs(os.path.join(SBOutputDir, LogFolderName))
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# Open the log file.
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PBuildLogFile = open(BuildLogPath, "wb+")
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# Build and analyze the project.
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try:
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runCleanupScript(Dir, PBuildLogFile)
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if (ProjectBuildMode == 1):
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runScanBuild(Dir, SBOutputDir, PBuildLogFile)
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else:
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runAnalyzePreprocessed(Dir, SBOutputDir, ProjectBuildMode)
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if IsReferenceBuild :
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runCleanupScript(Dir, PBuildLogFile)
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finally:
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PBuildLogFile.close()
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print "Build complete (time: %.2f). See the log for more details: %s" % \
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((time.time()-TBegin), BuildLogPath)
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# A plist file is created for each call to the analyzer(each source file).
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# We are only interested on the once that have bug reports, so delete the rest.
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def CleanUpEmptyPlists(SBOutputDir):
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for F in glob.glob(SBOutputDir + "/*/*.plist"):
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P = os.path.join(SBOutputDir, F)
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Data = plistlib.readPlist(P)
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# Delete empty reports.
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if not Data['files']:
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os.remove(P)
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continue
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# Given the scan-build output directory, checks if the build failed
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# (by searching for the failures directories). If there are failures, it
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# creates a summary file in the output directory.
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def checkBuild(SBOutputDir):
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# Check if there are failures.
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Failures = glob.glob(SBOutputDir + "/*/failures/*.stderr.txt")
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TotalFailed = len(Failures);
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if TotalFailed == 0:
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CleanUpEmptyPlists(SBOutputDir)
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Plists = glob.glob(SBOutputDir + "/*/*.plist")
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print "Number of bug reports (non empty plist files) produced: %d" %\
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len(Plists)
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return;
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# Create summary file to display when the build fails.
|
||
|
|
SummaryPath = os.path.join(SBOutputDir, LogFolderName, FailuresSummaryFileName)
|
||
|
|
if (Verbose > 0):
|
||
|
|
print " Creating the failures summary file %s" % (SummaryPath,)
|
||
|
|
|
||
|
|
SummaryLog = open(SummaryPath, "w+")
|
||
|
|
try:
|
||
|
|
SummaryLog.write("Total of %d failures discovered.\n" % (TotalFailed,))
|
||
|
|
if TotalFailed > NumOfFailuresInSummary:
|
||
|
|
SummaryLog.write("See the first %d below.\n"
|
||
|
|
% (NumOfFailuresInSummary,))
|
||
|
|
# TODO: Add a line "See the results folder for more."
|
||
|
|
|
||
|
|
FailuresCopied = NumOfFailuresInSummary
|
||
|
|
Idx = 0
|
||
|
|
for FailLogPathI in Failures:
|
||
|
|
if Idx >= NumOfFailuresInSummary:
|
||
|
|
break;
|
||
|
|
Idx += 1
|
||
|
|
SummaryLog.write("\n-- Error #%d -----------\n" % (Idx,));
|
||
|
|
FailLogI = open(FailLogPathI, "r");
|
||
|
|
try:
|
||
|
|
shutil.copyfileobj(FailLogI, SummaryLog);
|
||
|
|
finally:
|
||
|
|
FailLogI.close()
|
||
|
|
finally:
|
||
|
|
SummaryLog.close()
|
||
|
|
|
||
|
|
print "Error: analysis failed. See ", SummaryPath
|
||
|
|
sys.exit(-1)
|
||
|
|
|
||
|
|
# Auxiliary object to discard stdout.
|
||
|
|
class Discarder(object):
|
||
|
|
def write(self, text):
|
||
|
|
pass # do nothing
|
||
|
|
|
||
|
|
# Compare the warnings produced by scan-build.
|
||
|
|
def runCmpResults(Dir):
|
||
|
|
TBegin = time.time()
|
||
|
|
|
||
|
|
RefDir = os.path.join(Dir, SBOutputDirReferencePrefix + SBOutputDirName)
|
||
|
|
NewDir = os.path.join(Dir, SBOutputDirName)
|
||
|
|
|
||
|
|
# We have to go one level down the directory tree.
|
||
|
|
RefList = glob.glob(RefDir + "/*")
|
||
|
|
NewList = glob.glob(NewDir + "/*")
|
||
|
|
|
||
|
|
# Log folders are also located in the results dir, so ignore them.
|
||
|
|
RefLogDir = os.path.join(RefDir, LogFolderName)
|
||
|
|
if RefLogDir in RefList:
|
||
|
|
RefList.remove(RefLogDir)
|
||
|
|
NewList.remove(os.path.join(NewDir, LogFolderName))
|
||
|
|
|
||
|
|
if len(RefList) == 0 or len(NewList) == 0:
|
||
|
|
return False
|
||
|
|
assert(len(RefList) == len(NewList))
|
||
|
|
|
||
|
|
# There might be more then one folder underneath - one per each scan-build
|
||
|
|
# command (Ex: one for configure and one for make).
|
||
|
|
if (len(RefList) > 1):
|
||
|
|
# Assume that the corresponding folders have the same names.
|
||
|
|
RefList.sort()
|
||
|
|
NewList.sort()
|
||
|
|
|
||
|
|
# Iterate and find the differences.
|
||
|
|
NumDiffs = 0
|
||
|
|
PairList = zip(RefList, NewList)
|
||
|
|
for P in PairList:
|
||
|
|
RefDir = P[0]
|
||
|
|
NewDir = P[1]
|
||
|
|
|
||
|
|
assert(RefDir != NewDir)
|
||
|
|
if Verbose == 1:
|
||
|
|
print " Comparing Results: %s %s" % (RefDir, NewDir)
|
||
|
|
|
||
|
|
DiffsPath = os.path.join(NewDir, DiffsSummaryFileName)
|
||
|
|
Opts = CmpRuns.CmpOptions(DiffsPath)
|
||
|
|
# Discard everything coming out of stdout (CmpRun produces a lot of them).
|
||
|
|
OLD_STDOUT = sys.stdout
|
||
|
|
sys.stdout = Discarder()
|
||
|
|
# Scan the results, delete empty plist files.
|
||
|
|
NumDiffs = CmpRuns.dumpScanBuildResultsDiff(RefDir, NewDir, Opts, False)
|
||
|
|
sys.stdout = OLD_STDOUT
|
||
|
|
if (NumDiffs > 0) :
|
||
|
|
print "Warning: %r differences in diagnostics. See %s" % \
|
||
|
|
(NumDiffs, DiffsPath,)
|
||
|
|
|
||
|
|
print "Diagnostic comparison complete (time: %.2f)." % (time.time()-TBegin)
|
||
|
|
return (NumDiffs > 0)
|
||
|
|
|
||
|
|
def updateSVN(Mode, ProjectsMap):
|
||
|
|
try:
|
||
|
|
ProjectsMap.seek(0)
|
||
|
|
for I in csv.reader(ProjectsMap):
|
||
|
|
ProjName = I[0]
|
||
|
|
Path = os.path.join(ProjName, getSBOutputDirName(True))
|
||
|
|
|
||
|
|
if Mode == "delete":
|
||
|
|
Command = "svn delete %s" % (Path,)
|
||
|
|
else:
|
||
|
|
Command = "svn add %s" % (Path,)
|
||
|
|
|
||
|
|
if Verbose == 1:
|
||
|
|
print " Executing: %s" % (Command,)
|
||
|
|
check_call(Command, shell=True)
|
||
|
|
|
||
|
|
if Mode == "delete":
|
||
|
|
CommitCommand = "svn commit -m \"[analyzer tests] Remove " \
|
||
|
|
"reference results.\""
|
||
|
|
else:
|
||
|
|
CommitCommand = "svn commit -m \"[analyzer tests] Add new " \
|
||
|
|
"reference results.\""
|
||
|
|
if Verbose == 1:
|
||
|
|
print " Executing: %s" % (CommitCommand,)
|
||
|
|
check_call(CommitCommand, shell=True)
|
||
|
|
except:
|
||
|
|
print "Error: SVN update failed."
|
||
|
|
sys.exit(-1)
|
||
|
|
|
||
|
|
def testProject(ID, ProjectBuildMode, IsReferenceBuild=False, Dir=None):
|
||
|
|
print " \n\n--- Building project %s" % (ID,)
|
||
|
|
|
||
|
|
TBegin = time.time()
|
||
|
|
|
||
|
|
if Dir is None :
|
||
|
|
Dir = getProjectDir(ID)
|
||
|
|
if Verbose == 1:
|
||
|
|
print " Build directory: %s." % (Dir,)
|
||
|
|
|
||
|
|
# Set the build results directory.
|
||
|
|
RelOutputDir = getSBOutputDirName(IsReferenceBuild)
|
||
|
|
SBOutputDir = os.path.join(Dir, RelOutputDir)
|
||
|
|
|
||
|
|
buildProject(Dir, SBOutputDir, ProjectBuildMode, IsReferenceBuild)
|
||
|
|
|
||
|
|
checkBuild(SBOutputDir)
|
||
|
|
|
||
|
|
if IsReferenceBuild == False:
|
||
|
|
runCmpResults(Dir)
|
||
|
|
|
||
|
|
print "Completed tests for project %s (time: %.2f)." % \
|
||
|
|
(ID, (time.time()-TBegin))
|
||
|
|
|
||
|
|
def testAll(IsReferenceBuild = False, UpdateSVN = False):
|
||
|
|
PMapFile = open(getProjectMapPath(), "rb")
|
||
|
|
try:
|
||
|
|
# Validate the input.
|
||
|
|
for I in csv.reader(PMapFile):
|
||
|
|
if (len(I) != 2) :
|
||
|
|
print "Error: Rows in the ProjectMapFile should have 3 entries."
|
||
|
|
raise Exception()
|
||
|
|
if (not ((I[1] == "0") | (I[1] == "1") | (I[1] == "2"))):
|
||
|
|
print "Error: Second entry in the ProjectMapFile should be 0" \
|
||
|
|
" (single file), 1 (project), or 2(single file c++11)."
|
||
|
|
raise Exception()
|
||
|
|
|
||
|
|
# When we are regenerating the reference results, we might need to
|
||
|
|
# update svn. Remove reference results from SVN.
|
||
|
|
if UpdateSVN == True:
|
||
|
|
assert(IsReferenceBuild == True);
|
||
|
|
updateSVN("delete", PMapFile);
|
||
|
|
|
||
|
|
# Test the projects.
|
||
|
|
PMapFile.seek(0)
|
||
|
|
for I in csv.reader(PMapFile):
|
||
|
|
testProject(I[0], int(I[1]), IsReferenceBuild)
|
||
|
|
|
||
|
|
# Add reference results to SVN.
|
||
|
|
if UpdateSVN == True:
|
||
|
|
updateSVN("add", PMapFile);
|
||
|
|
|
||
|
|
except:
|
||
|
|
print "Error occurred. Premature termination."
|
||
|
|
raise
|
||
|
|
finally:
|
||
|
|
PMapFile.close()
|
||
|
|
|
||
|
|
if __name__ == '__main__':
|
||
|
|
IsReference = False
|
||
|
|
UpdateSVN = False
|
||
|
|
if len(sys.argv) >= 2:
|
||
|
|
if sys.argv[1] == "-r":
|
||
|
|
IsReference = True
|
||
|
|
elif sys.argv[1] == "-rs":
|
||
|
|
IsReference = True
|
||
|
|
UpdateSVN = True
|
||
|
|
else:
|
||
|
|
print >> sys.stderr, 'Usage: ', sys.argv[0],\
|
||
|
|
'[-r|-rs]' \
|
||
|
|
'Use -r to regenerate reference output' \
|
||
|
|
'Use -rs to regenerate reference output and update svn'
|
||
|
|
|
||
|
|
testAll(IsReference, UpdateSVN)
|