#!/bin/bash
#
# Copyright (C) 2009 Red Hat, Inc.
# Copyright (c) 2000-2002,2006 Silicon Graphics, Inc.  All Rights Reserved.
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License as
# published by the Free Software Foundation.
#
# This program is distributed in the hope that it would be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program.  If not, see <http://www.gnu.org/licenses/>.
#
#
# Control script for QA
#

status=0
needwrap=true
try=0
n_bad=0
bad=""
notrun=""
interrupt=true

# by default don't output timestamps
timestamp=${TIMESTAMP:=false}

# generic initialization
iam=check

_init_error()
{
    echo "$iam: $1" >&2
    exit 1
}

if [ -L "$0" ]
then
    # called from the build tree
    source_iotests=$(dirname "$(readlink "$0")")
    if [ -z "$source_iotests" ]
    then
        _init_error "failed to obtain source tree name from check symlink"
    fi
    source_iotests=$(cd "$source_iotests"; pwd) || _init_error "failed to enter source tree"
    build_iotests=$PWD
else
    # called from the source tree
    source_iotests=$PWD
    # this may be an in-tree build (note that in the following code we may not
    # assume that it truly is and have to test whether the build results
    # actually exist)
    build_iotests=$PWD
fi

build_root="$build_iotests/../.."

if [ -x "$build_iotests/socket_scm_helper" ]
then
    export SOCKET_SCM_HELPER="$build_iotests/socket_scm_helper"
fi

# if ./qemu exists, it should be prioritized and will be chosen by common.config
if [[ -z "$QEMU_PROG" && ! -x './qemu' ]]
then
    arch=$(uname -m 2> /dev/null)

    if [[ -n $arch && -x "$build_root/$arch-softmmu/qemu-system-$arch" ]]
    then
        export QEMU_PROG="$build_root/$arch-softmmu/qemu-system-$arch"
    else
        pushd "$build_root" > /dev/null
        for binary in *-softmmu/qemu-system-*
        do
            if [ -x "$binary" ]
            then
                export QEMU_PROG="$build_root/$binary"
                break
            fi
        done
        popd > /dev/null
    fi
fi

if [[ -z $QEMU_IMG_PROG && -x "$build_root/qemu-img" && ! -x './qemu-img' ]]
then
    export QEMU_IMG_PROG="$build_root/qemu-img"
fi

if [[ -z $QEMU_IO_PROG && -x "$build_root/qemu-io" && ! -x './qemu-io' ]]
then
    export QEMU_IO_PROG="$build_root/qemu-io"
fi

if [[ -z $QEMU_NBD_PROG && -x "$build_root/qemu-nbd" && ! -x './qemu-nbd' ]]
then
    export QEMU_NBD_PROG="$build_root/qemu-nbd"
fi

# we need common.env
if ! . "$build_iotests/common.env"
then
    _init_error "failed to source common.env (make sure the qemu-iotests are run from tests/qemu-iotests in the build tree)"
fi

# we need common.config
if ! . "$source_iotests/common.config"
then
    _init_error "failed to source common.config"
fi

# we need common.rc
if ! . "$source_iotests/common.rc"
then
    _init_error "failed to source common.rc"
fi

# we need common
. "$source_iotests/common"

TIMESTAMP_FILE=check.time-$IMGPROTO-$IMGFMT

tmp="${TEST_DIR}"/$$

_wallclock()
{
    date "+%H %M %S" | $AWK_PROG '{ print $1*3600 + $2*60 + $3 }'
}

_timestamp()
{
    now=`date "+%T"`
    printf %s " [$now]"
}

_wrapup()
{
    # for hangcheck ...
    # remove files that were used by hangcheck
    #
    [ -f "${TEST_DIR}"/check.pid ] && rm -rf "${TEST_DIR}"/check.pid
    [ -f "${TEST_DIR}"/check.sts ] && rm -rf "${TEST_DIR}"/check.sts

    if $showme
    then
        :
    elif $needwrap
    then
        if [ -f $TIMESTAMP_FILE -a -f $tmp.time ]
        then
            cat $TIMESTAMP_FILE $tmp.time \
            | $AWK_PROG '
        { t[$1] = $2 }
END        { if (NR > 0) {
            for (i in t) print i " " t[i]
          }
        }' \
            | sort -n >$tmp.out
            mv $tmp.out $TIMESTAMP_FILE
        fi

        if [ -f $tmp.expunged ]
        then
            notrun=`wc -l <$tmp.expunged | sed -e 's/  *//g'`
            try=`expr $try - $notrun`
            list=`echo "$list" | sed -f $tmp.expunged`
        fi

        echo "" >>check.log
        date >>check.log
        echo $list | fmt | sed -e 's/^/    /' >>check.log
        $interrupt && echo "Interrupted!" >>check.log

        if [ ! -z "$notrun" ]
        then
            echo "Not run:$notrun"
            echo "Not run:$notrun" >>check.log
        fi
        if [ ! -z "$n_bad" -a $n_bad != 0 ]
        then
            echo "Failures:$bad"
            echo "Failed $n_bad of $try tests"
            echo "Failures:$bad" | fmt >>check.log
            echo "Failed $n_bad of $try tests" >>check.log
        else
            echo "Passed all $try tests"
            echo "Passed all $try tests" >>check.log
        fi
        needwrap=false
    fi

    rm -f "${TEST_DIR}"/*.out "${TEST_DIR}"/*.err "${TEST_DIR}"/*.time
    rm -f "${TEST_DIR}"/check.pid "${TEST_DIR}"/check.sts
    rm -f $tmp.*
}

trap "_wrapup; exit \$status" 0 1 2 3 15

# for hangcheck ...
# Save pid of check in a well known place, so that hangcheck can be sure it
# has the right pid (getting the pid from ps output is not reliable enough).
#
rm -rf "${TEST_DIR}"/check.pid
echo $$ > "${TEST_DIR}"/check.pid

# for hangcheck ...
# Save the status of check in a well known place, so that hangcheck can be
# sure to know where check is up to (getting test number from ps output is
# not reliable enough since the trace stuff has been introduced).
#
rm -rf "${TEST_DIR}"/check.sts
echo "preamble" > "${TEST_DIR}"/check.sts

# don't leave old full output behind on a clean run
rm -f check.full

[ -f $TIMESTAMP_FILE ] || touch $TIMESTAMP_FILE

FULL_IMGFMT_DETAILS=`_full_imgfmt_details`
FULL_HOST_DETAILS=`_full_platform_details`

cat <<EOF
QEMU          -- "$QEMU_PROG" $QEMU_OPTIONS
QEMU_IMG      -- "$QEMU_IMG_PROG" $QEMU_IMG_OPTIONS
QEMU_IO       -- "$QEMU_IO_PROG" $QEMU_IO_OPTIONS
QEMU_NBD      -- "$QEMU_NBD_PROG" $QEMU_NBD_OPTIONS
IMGFMT        -- $FULL_IMGFMT_DETAILS
IMGPROTO      -- $IMGPROTO
PLATFORM      -- $FULL_HOST_DETAILS
TEST_DIR      -- $TEST_DIR
SOCKET_SCM_HELPER -- $SOCKET_SCM_HELPER

EOF

seq="check"

[ -n "$TESTS_REMAINING_LOG" ] && echo $list > $TESTS_REMAINING_LOG

for seq in $list
do
    err=false
    printf %s "$seq"
    if [ -n "$TESTS_REMAINING_LOG" ] ; then
        sed -e "s/$seq//" -e 's/  / /' -e 's/^ *//' $TESTS_REMAINING_LOG > $TESTS_REMAINING_LOG.tmp
        mv $TESTS_REMAINING_LOG.tmp $TESTS_REMAINING_LOG
        sync
    fi

    if $showme
    then
        echo
        continue
    elif [ -f expunged ] && $expunge && egrep "^$seq([         ]|\$)" expunged >/dev/null
    then
        echo " - expunged"
        rm -f $seq.out.bad
        echo "/^$seq\$/d" >>$tmp.expunged
    elif [ ! -f "$source_iotests/$seq" ]
    then
        echo " - no such test?"
        echo "/^$seq\$/d" >>$tmp.expunged
    else
        # really going to try and run this one
        #
        rm -f $seq.out.bad
        lasttime=`sed -n -e "/^$seq /s/.* //p" <$TIMESTAMP_FILE`
        if [ "X$lasttime" != X ]; then
                printf %s " ${lasttime}s ..."
        else
                printf "        "        # prettier output with timestamps.
        fi
        rm -f core $seq.notrun

        # for hangcheck ...
        echo "$seq" > "${TEST_DIR}"/check.sts

        start=`_wallclock`
        $timestamp && printf %s "        [$(date "+%T")]"

        if [ "$(head -n 1 "$source_iotests/$seq")" == "#!/usr/bin/env python" ]; then
            run_command="$PYTHON $seq"
        else
            run_command="./$seq"
        fi
        export OUTPUT_DIR=$PWD
        if $debug; then
            (cd "$source_iotests";
            MALLOC_PERTURB_=${MALLOC_PERTURB_:-$(($RANDOM % 255 + 1))} \
                    $run_command -d 2>&1 | tee $tmp.out)
        else
            (cd "$source_iotests";
            MALLOC_PERTURB_=${MALLOC_PERTURB_:-$(($RANDOM % 255 + 1))} \
                    $run_command >$tmp.out 2>&1)
        fi
        sts=$?
        $timestamp && _timestamp
        stop=`_wallclock`

        if [ -f core ]
        then
            printf " [dumped core]"
            mv core $seq.core
            err=true
        fi

        if [ -f $seq.notrun ]
        then
            $timestamp || printf " [not run] "
            $timestamp && echo " [not run]" && printf %s "        $seq -- "
            cat $seq.notrun
            notrun="$notrun $seq"
        else
            if [ $sts -ne 0 ]
            then
                printf %s " [failed, exit status $sts]"
                err=true
            fi

            reference="$source_iotests/$seq.out"
            reference_machine="$source_iotests/$seq.$QEMU_DEFAULT_MACHINE.out"
            if [ -f "$reference_machine" ]; then
                reference="$reference_machine"
            fi

            reference_format="$source_iotests/$seq.out.$IMGFMT"
            if [ -f "$reference_format" ]; then
                reference="$reference_format"
            fi

            if [ "$CACHEMODE" = "none" ]; then
                [ -f "$source_iotests/$seq.out.nocache" ] && reference="$source_iotests/$seq.out.nocache"
            fi

            if [ ! -f "$reference" ]
            then
                echo " - no qualified output"
                err=true
            else
                if diff -w "$reference" $tmp.out >/dev/null 2>&1
                then
                    echo ""
                    if $err
                    then
                        :
                    else
                        echo "$seq `expr $stop - $start`" >>$tmp.time
                    fi
                else
                    echo " - output mismatch (see $seq.out.bad)"
                    mv $tmp.out $seq.out.bad
                    $diff -w "$reference" $seq.out.bad
                    err=true
                fi
            fi
        fi

    fi

    # come here for each test, except when $showme is true
    #
    if $err
    then
        bad="$bad $seq"
        n_bad=`expr $n_bad + 1`
        quick=false
    fi
    [ -f $seq.notrun ] || try=`expr $try + 1`

    seq="after_$seq"
done

interrupt=false
status=`expr $n_bad`
exit