#!/bin/bash

 # This is a script used by some Buildbot buildslaves to push the project

 #  through Clang's static analyzer and prepare the output to be uploaded

 #  back to the buildmaster. You might find it useful too.

 # Install Clang (you already have it on Mac OS X, apt-get install clang

 #  on Ubuntu, etc),

 # or download checker at http://clang-analyzer.llvm.org/ and unpack it in

 #  /usr/local ... update CHECKERDIR as appropriate.

 FINALDIR="$1"

 CHECKERDIR="/usr/local/checker-276"

 if [ ! -d "$CHECKERDIR" ]; then

     echo "$CHECKERDIR not found. Trying /usr/share/clang ..." 1>&2

     CHECKERDIR="/usr/share/clang/scan-build"

 fi

 if [ ! -d "$CHECKERDIR" ]; then

     echo "$CHECKERDIR not found. Giving up." 1>&2

     exit 1

 fi

 if [ -z "$MAKE" ]; then

     OSTYPE=`uname -s`

     if [ "$OSTYPE" == "Linux" ]; then

         NCPU=`cat /proc/cpuinfo |grep vendor_id |wc -l`

         let NCPU=$NCPU+1

     elif [ "$OSTYPE" = "Darwin" ]; then

         NCPU=`sysctl -n hw.ncpu`

     elif [ "$OSTYPE" = "SunOS" ]; then

         NCPU=`/usr/sbin/psrinfo |wc -l |sed -e 's/^ *//g;s/ *$//g'`

     else

         NCPU=1

     fi

     if [ -z "$NCPU" ]; then

         NCPU=1

     elif [ "$NCPU" = "0" ]; then

         NCPU=1

     fi

     MAKE="make -j$NCPU"

 fi

 echo "\$MAKE is '$MAKE'"

 set -x

 set -e

 cd `dirname "$0"`

 cd ..

 rm -rf checker-buildbot analysis

 if [ ! -z "$FINALDIR" ]; then

     rm -rf "$FINALDIR"

 fi

 mkdir checker-buildbot

 cd checker-buildbot

 # You might want to do this for CMake-backed builds instead...

 PATH="$CHECKERDIR:$PATH" scan-build -o analysis cmake -DCMAKE_BUILD_TYPE=Debug -DASSERTIONS=enabled ..

 # ...or run configure without the scan-build wrapper...

 #CC="$CHECKERDIR/libexec/ccc-analyzer" CFLAGS="-O0" ../configure --enable-assertions=enabled

 # ...but this works for our buildbots just fine (EXCEPT ON LATEST MAC OS X).

 #CFLAGS="-O0" PATH="$CHECKERDIR:$PATH" scan-build -o analysis ../configure --enable-assertions=enabled

 rm -rf analysis

 PATH="$CHECKERDIR:$PATH" scan-build -o analysis $MAKE

 mv analysis/* ../analysis

 rmdir analysis   # Make sure this is empty.

 cd ..

 chmod -R a+r analysis

 chmod -R go-w analysis

 find analysis -type d -exec chmod a+x {} \;

 if [ -x /usr/bin/xattr ]; then find analysis -exec /usr/bin/xattr -d com.apple.quarantine {} \; 2>/dev/null ; fi

 if [ ! -z "$FINALDIR" ]; then

     mv analysis "$FINALDIR"

 else

     FINALDIR=analysis

 fi

 rm -rf checker-buildbot

 echo "Done. Final output is in '$FINALDIR' ..."

 # end of checker-buildbot.sh ...