#! /bin/sh
#
# Get coverage information for mpich
#
#set -x
# The default approach is to prepare the coverage for this MPICH 
# distribution and to place the coverage web pages into a 
# (mpichsrc)/www/coverage
srcdir=@abs_mpichsrcdir@
tsuites=$srcdir/tests/mpi
weblocbase=$srcdir/www/coverage
weblocprefix=""
blddir=/tmp/$LOGNAME/mpich-cov
mpiinstalldir=/tmp/$LOGNAME/mpich-cinst

logfile=""
#pm=gforker
pm=hydra
# device and channel
# (we'll also want this to be in the path)
device="ch3:sock"

test_intel=yes
test_mpich=yes
test_mpich1=yes
test_cxx=yes
test_io=yes
testNames="intel mpich1 mpich cxx io"
build_mpich=yes
alltest=yes
update_web=yes
quiet=no
#
# Process args to see if we are running only a subset of the steps, 
# for example, to rerun a test suite
for arg ; do 
    # Extract option, if any
    case $arg in 
    *=*)
    option=`echo A$arg | sed -e 's/^[^=]*=//'`
    ;;
    *)
    option=""
    ;;
    esac

    case $arg in 
    -nobuild)
    build_mpich=no
    ;;

    -quiet)
    quiet=yes
    ;;

    -logfile=*)
    logfile=$option
    ;;

    -srcdir=*)
    srcdir=$option
    ;;

    -device=*)
    device=$option
    ;;

    -pm=*)
    pm=$option
    ;; 

    -test=*)
    if [ $alltest = yes ] ; then
        alltest=no
	test_intel=no
	test_mpich1=no
	test_mpich=no
	test_io=no
	test_cxx=no
    fi
    name=`echo A$arg | sed -e 's/A-test=//'`
    eval test_$name=yes
    ;;

    -notest=*)
    # Turn off just one test
    alltest=no
    name=`echo A$arg | sed -e 's/A-notest=//'`
    eval test_$name=no
    ;;
    
    -notest)
    alltest=no
    test_intel=no
    test_mpich1=no
    test_mpich=no
    test_io=no
    test_cxx=no
    ;;

    -blddir=*)
    blddir=`echo A$arg | sed -e 's/A-blddir=//'`
    ;;

    -noupdateweb)
    update_web=no
    ;;
    -updateweb)
    update_web=yes
    ;;
    -webdir)
    weblocbase=$option
    ;;

    -help)
    cat <<EOF
createcoverage [ -srcdir=sourcedir ] [ -blddir=builddir ] 
               [ -test=onetest ] [ -notest=skiptest ]
               [ -device=device ] [ -nobuild ] [ -quiet ] [ -pm=pm ]
               [ -[no]updateweb ] [ -webdir=webdir ]
     sourcedir   - Directory containing the source  for MPICH.
                   Default is $srcdir
     blddir      - Directory where the coverage tests should be built.
                   Default is $blddir
     onetest     - Run only this test suite.  Available tests are
                   $testNames
     skiptest    - Skip this test suite.
     device      - Device to test.  Default is $device
     pm          - Select the process manager.  Default is $pm
     -updateweb  - Update the web page containing the single file listing
                   at $weblocbase/$device/coverage.txt
     webdir      - Directory into which to place the web pages.
                   The default is $weblocbase 
                   (the final directory is webdir/$device ).
EOF
    exit 1;
    ;;

    *)
    echo "Argument $arg unrecognized"
    ;;

    esac
done

# Move everthing into a device-specific directory
webloc="$weblocbase/$device"
if [ "$update_web" = yes ] ; then
    if [ ! -d $webloc ] ; then mkdir -p $webloc ; fi
fi
#
# Set the derived directories
annotedir=$webloc
if [ -n "$weblocprefix" ] ; then
    # Only add device to the location if we are not using relative paths
    # for the web pages
    annotewebprefix="$weblocprefix/$device"
fi
annoteindex=$webloc/index.htm
# Locations of the test directories
mpichsrcdir=$srcdir/Test/mpi
intelsrcdir=$tsuites/IntelMPITEST
mpich1srcdir=$tsuites/mpich1test
cxxsrcdir=$tsuites/mpicxxtest
iosrcdir=$tsuites/Testmpio

# For each of the tests selected, turn off those for which the 
# test source directories are not available
for test in $testNames ; do
    eval t="test_$test"
    eval tval=\$$t
    if [ "$tval" = yes ] ; then
        eval tloc=\$${test}srcdir
        if [ ! -d "$tloc" ] ; then
            echo "Turning off test $test because test source directory $tloc is not available"
	    eval $t=no
        fi
    fi
done

# Compute the appropriate device directories
# Base directories
case $device in
    ch3|ch3:nemesis)
    devsrcdirs="src/mpid/ch3/channels/nemesis/src src/mpid/ch3/src src/mpid/ch3/channels/nemesis/netmod/tcp src/mpid/ch3/channels/nemesis/netmod/none"
    extra_opts="$extra_opts --enable-nemesis-dbg-localoddeven"
    ;;
    ch3:sock)
    devsrcdirs="src/mpid/ch3/channels/sock/src src/mpid/ch3/src src/mpid/common/sock/poll src/mpid/ch3/util/sock"
    ;;
    ch3*)
    devsrcdirs="src/mpid/ch3/src"
    ;;
    *)
    if [ -d "$srcdir/src/mpid/$device" ] ; then
        devsrcdirs="src/mpid/$device"
    fi
    ;;
esac

# Set a timeout for mpiexec just in case
MPIEXEC_TIMEOUT=180
export MPIEXEC_TIMEOUT
#
# We use fd 6 to redirect output.  If we have selected "-quiet", this
# sends stdout to /dev/null 
if [ "$quiet" = yes ] ; then
    exec 6>/dev/null
elif [ -n "$logfile" ] ; then
    exec 6>$logfile
else
    set -x
    exec 6>&1
fi

if [ ! -d $blddir ] ; then
    # Try to build it
    mkdir $blddir
fi
if [ ! -d $blddir ] ; then
    echo "$blddir does not exist" 
    echo "Create it and rerun this script"
    exit 1
fi

# Build with the coverage options
if [ $build_mpich = yes ] ; then
    echo "------ Build MPICH ------" >&6
    cd $blddir
    $srcdir/configure --enable-coverage --with-pm=$pm --enable-romio \
    		--with-device=$device \
		  -prefix=$mpiinstalldir $extra_opts >&6 2>&6
    rc=$?
    if [ "$rc" != 0 ] ; then 
	echo "$srcdir/configure failed with return code $rc"
	exit 1
    fi
    make clean >&6 2>&6
    # Make sure that we clean away any old results
    find . -name '*.bb' -o -name '*.bbg' -o -name '*.da' -print | \
	xargs @XARGS_NODATA_OPT@ rm -f
    find . -name '*.gcov' -print | xargs @XARGS_NODATA_OPT@ rm -f
    rm -f lib/*
    make >&6 2>&6
    rc=$?
    if [ "$rc" != 0 ] ; then
        echo "Make step failed with return code $rc"
	exit 1
    fi
    echo "------ Install MPICH ------" >&6
    make install >&6 2>&6
    rc=$?
    if [ "$rc" != 0 ] ; then
	echo "Make install step failed with return code $rc"
        exit 1
    fi
    echo "------ End of Install MPICH ------" >&6
fi
#
# Run the tests
if [ $test_mpich = yes ] ; then
    # The mpich tests are easy
    echo "------ Run MPICH Tests ------" >&6
    cd $blddir
    make testing >&6 2>&6
    echo "------ End Run MPICH Tests ------" >&6
fi

if [ ! -d $blddir/othertest ] ; then
    mkdir $blddir/othertest
fi
for dir in intel cxx mpich1 Testmpio ; do
    if [ ! -d $blddir/othertest/$dir ] ; then
        mkdir $blddir/othertest/$dir 
    fi
done

if [ $test_intel = yes ] ; then
    echo "------ Run Intel Tests ------" >&6
    # The intel tests aren't hard

    cd $blddir/othertest/intel
    $intelsrcdir/configure --enable-coverage \
	--with-mpich=$mpiinstalldir >&6 2>&6
    make clean >&6 2>&6
    make testing >&6 2>&6
    echo "------ End Run Intel Tests ------" >&6
fi

if [ $test_cxx = yes ] ; then
    echo "------ Run C++ Tests ------" >&6
    # Neither are the cxx test
    # Build mpicxxtest --enable-coverage (still need to implement)
    cd $blddir/othertest/cxx
    $cxxsrcdir/configure --enable-coverage --with-mpich=$mpiinstalldir \
	--enable-xml  >&6 2>&6
    make clean >&6 2>&6
    make testing >&6 2>&6
    echo "------ End Run C++ Tests ------" >&6
fi

if [ $test_io = yes ] ; then
    echo "------ Run MPI-IO Tests ------" >&6
    # These tests do not even have a configure or make!
    cd $blddir/othertest/Testmpio
    $mpiinstalldir/bin/mpicc -o testmpio $iosrcdir/testmpio.c >&6 2>&6
    if [ ! -x testmpio ] ; then
	echo "Unable to build MPI-IO test testmpio.  See log file $logfile for reason (build attempted in $blddir/othertest/Testmpio)"
    else
        if [ ! -d t1 ] ; then mkdir t1 ; fi
        MPIO_USER_PATH=`pwd`/t1
        export MPIO_USER_PATH
        $mpiinstalldir/bin/mpiexec -n 4 ./testmpio 1 >&6 2>&6
    fi
    echo "------ End Run MPI-IO Tests ------" >&6
fi

if [ $test_mpich1 = yes ] ; then
    echo "------ Run MPICH-1 Tests ------" >&6
    # Nor are the mpich1 tests
    # Build mpich tests --enable-coverage
    #   Need to provide a target that does not do the "runtest -check" step,
    #   since there may be output about "Can't read output file foo.da"
    cd $blddir/othertest/mpich1
    MPIRUN=$mpiinstalldir/bin/mpiexec
    export MPIRUN
    MPITEST_IGNORE_RUNTEST=yes
    export MPITEST_IGNORE_RUNTEST
    $mpich1srcdir/configure --enable-coverage -cc=$mpiinstalldir/bin/mpicc \
			-fc=$mpiinstalldir/bin/mpifort --enable-io \
			-mpilibname=mpich \
			-prefix=$mpiinstalldir >&6 2>&6
    make clean  >&6 2>&6
    make testing >&6 2>&6
    echo "------ End Run MPICH-1 Tests ------" >&6
fi

# Now create the summary
echo "------ Collect Coverage Information ------" >&6
cd $blddir
# Ignore the output from gcov
make coverage >/dev/null 2>&1
rc=$?
if [ "$rc" != 0 ] ; then
    echo "Make coverage step failed with return code $rc"
fi
#
# The following list of directories gets the following:
#  All of the top-level MPI routines (src/mpi and src/util/info)
#  Support routines for nameservice using the file option (src/nameserv/file)
#  Support routines for datatypes
#  Basic implementation of the channel device.  This is included
#  because some of the top-level MPI routines just push operations down
#  to the device (e.g., MPI_Put).  src/mpid/ch3/src contains the "common"
#  code for the channel devices, so it is reasonable to try for good
#  coverage of this code as well.
# annoteindex is not used with 
rm -f coverage.txt
if [ "$update_web" = yes ] ; then
    # Clean out the old annotated files
    if [ -d "$annotedir/src" ] ; then
	(cd $annotedir/src && \
	    find . -name '*.c.htm' -ctime +2 -print | \
	    xargs @XARGS_NODATA_OPT@ rm -f )
    fi
    $srcdir/maint/getcoverage -annote=$annotedir \
    -annoteweb=$annotewebprefix \
    -indexdir=$annotedir \
    src/mpi src/util/info src/nameserv/file \
	src/mpid/common/datatype \
        $devsrcdirs \
        src/pmi/simple src/binding/f77 src/binding/cxx > coverage.txt
else 
    $srcdir/maint/getcoverage \
    src/mpi src/util/info src/nameserv/file \
	src/mpid/common/datatype \
	$devsrcdirs \
        src/pmi/simple src/binding/f77 src/binding/cxx > coverage.txt
fi
# The coverage data is in the build dir ($blddir).
echo "------ End Collect Coverage Information ------" >&6
if [ "$update_web" = yes ] ; then
    if [ -d $webloc ] ; then 
        rm -f $webloc/coverage.txt
        cp coverage.txt $webloc/coverage.txt
    else
        echo "Unable to access $webloc to install coverage output"
    fi
    # Make the logfile available on the web page
    if [ -n "$logfile" -a -s "$logfile" ] ; then
	rm -f $webloc/cov-logfile.txt
	cp $logfile $webloc/cov-logfile.txt
    fi
fi
#
# From mpich build directory:
# make coverage >/dev/null 2>&1
#   The above step creates the *.gcov files
# maint/getcoverage.in src/mpi/*.gcov src/util/info/*.gcov \
#   src/mpid/ch3/src/*.gcov src/mpid/ch3/channels/sock/src/*.gcov etc. \
#    > coverage.txt
#
# The above generates a file that shows each missed executable line, along
# with some context (the two lines preceding the missed line).
#
# It doesn't get all of the files; for example, it misses others in util
# (e.g., util/mem), and it misses all of ROMIO because of the file 
# structure of ROMIO (src/mpi/romio/{adio|mpi-io}/*.gcov).