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#!/bin/sh
# This script automatically test the given tool with the tool's test cases,
# reporting anything of interest.

# exits with 1 if there is nothing of interest
# exits with 0 if there is something interesting
# exits with 2 if an error occurred

# Syntax: test-tool [-expectedpass] [-keepoutput] [-noupdate] g++|gcc|gdb|...
#
# -expectedpass: Turn XFAIL into "pass", XPASS into "fail".
#                The default is XFAIL->fail, XPASS->pass.
# -keepoutput: Save "make check" output in test-$tool.log.
# -noupdate: Don't update log files.

# Limitations, don't run this multiple times in one day, unless the -noupdate
# flag is given.

# Written by Mike Stump <mrs@cygnus.com>

expectedpass=no
keepoutput=no
update=yes
tool=""

# See if cp -p works.
pwd=`pwd`
cd /tmp
rm -f test-tool-$$-1 test-tool-$$-2
touch test-tool-$$-1
cp -p test-tool-$$-1 test-tool-$$-2 2>/dev/null
if [ $? = 0 -a -f test-tool-$$-2 ] ; then
    CP="cp -p"
else
    CP=cp
fi
rm -f test-tool-$$-1 test-tool-$$-2
cd $pwd

for arg in $*
do
        case $arg in
        -expectedpass) expectedpass=yes ;;
        -keepoutput) keepoutput=yes ;;
        -noupdate) update=no ;;
        -*)
                echo "Usage: [-expectedpass] [-keepoutput] [-noupdate] tool_name" >&2
                exit 2
                ;;
        *)
                if [ "$tool" != "" ]; then
                        echo "Usage: [-expectedpass] [-keepoutput] [-noupdate] tool_name" >&2
                        exit 2
                fi
                tool=$arg
                ;;
        esac
done

# FIXME: It sure would be nice if `testdir' wasn't necessary. :-(

case $tool in
    g++) 
        devoname=gcc
        checktarget=check-g++
        testdir=testsuite
        ;;
    gcc)
        devoname=gcc
        checktarget=check-gcc
        testdir=testsuite
        ;;
    ld|gld)
        devoname=ld
        checktarget=check
        testdir=.
        ;;
    binutils)
        devoname=binutils
        checktarget=check
        testdir=.
        ;;
    *)
        devoname=$tool
        checktarget=check
        testdir=testsuite
        ;;
esac

# Default DEVOSRCDIR
if [ "$DEVOSRCDIR" = "" ]; then
        DEVOSRCDIR=$HOME/devo ; export DEVOSRCDIR
fi

# Check DEVOSRCDIR
if [ ! -d "$DEVOSRCDIR" ]; then
        echo "$0: no directory $DEVOSRCDIR" >&2
        exit 2
fi

# Default DEVOBINDIR
if [ "$DEVOBINDIR" = "" ]; then
        CPU=`$DEVOSRCDIR/config.guess`
        if [ $? != 0 ]; then
                echo "$0: cannot run config.guess" >&2
                exit 2
        fi
        DEVOBINDIR=$HOME/$CPU ; export DEVOBINDIR
fi

# Check DEVOBINDIR
if [ ! -d "$DEVOBINDIR" ]; then
        echo "$0: no directory $DEVOBINDIR" >&2
        exit 2
fi

# Specialize DEVOSRCDIR
if [ -d "$DEVOSRCDIR/$devoname" ]; then
        DEVOSRCDIR=$DEVOSRCDIR/$devoname
else
        echo "$0: Cannot find source directory." >&2
        exit 2
fi

# Default LOGDIR
if [ "$LOGDIR" = "" ]; then
        LOGDIR=$HOME/logs ; export LOGDIR
fi

# Check LOGDIR
if [ ! -d "$LOGDIR" ]; then
        echo "$0: no directory $LOGDIR" >&2
        exit 2
fi
        
# Specialize DEVOBINDIR
if [ -d "$DEVOBINDIR/$devoname" ]; then
        DEVOBINDIR=$DEVOBINDIR/$devoname
else
        echo "$0: Cannot find binary directory." >&2
        exit 2
fi

# Binary directory
cd $DEVOBINDIR || exit 2

TMPDIR=${TMPDIR-/tmp}

tmp=$TMPDIR/$tool-testing.$$a
tmp1=$TMPDIR/$tool-testing.$$b
tmp2=$TMPDIR/$tool-testing.$$c
now_s=$TMPDIR/$tool-testing.$$d
before_s=$TMPDIR/$tool-testing.$$e

if [ "$keepoutput" = yes ]; then
        rm -f test-$tool.log
        make RUNTESTFLAGS="-v -v" $checktarget >test-$tool.log 2>&1
else
        make RUNTESTFLAGS="-v -v" $checktarget >/dev/null 2>&1
fi

# Check for DEJAGNU errors that prevented any output at all.
if [ ! -f $testdir/$tool.sum ]; then
        echo "Tests didn't run, probably because of a framework error."
        if [ "$keepoutput" = yes ]; then
                echo
                tail -20 test-$tool.log
        else
                echo "Unable to determine why.  Rerun with -keepoutput."
        fi
        exit 2
fi

# Canonicalize XFAIL and XPASS so the rest of the script can ignore them.
if [ "$expectedpass" = yes ]; then
        sed 's/^XFAIL/PASS(XFAIL)/; s/^XPASS/FAIL(XPASS)/' <$testdir/$tool.sum >$testdir/$tool.1.sum || exit 2
else
        sed 's/^XFAIL/FAIL(XFAIL)/; s/^XPASS/PASS(XPASS)/' <$testdir/$tool.sum >$testdir/$tool.1.sum || exit 2
fi
mv $testdir/$tool.1.sum $testdir/$tool.sum

patterns="$LOGDIR/$tool-??????.sum $LOGDIR/$tool-??????.sum.gz $LOGDIR/$tool-??????????.sum $LOGDIR/$tool-??????????.sum.gz"
before=`ls -1t $patterns 2>/dev/null | sed 1q`

todayname=`date '+%y%m%d'`
if [ "$update" = no ]; then
        now=$testdir/$tool.sum
else
        mv -f $testdir/$tool.sum $LOGDIR/$tool-$todayname.sum || exit 2
        mv -f $testdir/$tool.log $LOGDIR/$tool-$todayname.log || exit 2

        # Say where the logs are stored so they appear in email messages.
        echo
        echo "Log files: $LOGDIR/$tool-$todayname.*"
        echo

        now="$LOGDIR/$tool-$todayname.sum";
fi

trap "rm -f $tmp $tmp1 $tmp2 $now_s $before_s" 0 1 2 3 5 9 13 15

case $before in
    "") before="cat /dev/null" ;;
    *.gz) before="gunzip -c $before" ;;
    *) before="cat $before" ;;
esac

# First, the test summary.
egrep '^# of |===.*Summary.*===' "$now" || echo "(No test summary?)"
echo

# Pick out the PASS/FAIL/Ufoo messages.
# We grep for them again later but that's for robustness' sake.
grep '^[PFU][A-Z()]*:' "$now" | sort -t ':' +1 > "$now_s"
$before | grep '^[PFU][A-Z()]*:' | sort -t ':' +1 > "$before_s"

grep '^FAIL:' "$now_s" | sed 's/^[^:]*:[        ]*//' >$tmp1
grep '^PASS' "$before_s" | sed 's/^[^:]*:[      ]*//' | comm -12 $tmp1 - >$tmp2

grep -s . $tmp2 >/dev/null
if [ $? = 0 ]; then
        echo "Tests that now unexpectedly fail, but worked before:"
        echo
        cat $tmp2
        showchangelog=1
        echo
fi

grep '^FAIL:' "$now_s" | sed 's/^[^:]*:[        ]*//' >$tmp1
grep '^[PFU][A-Z()]*:' "$before_s" | sed 's/^[^:]*:[    ]*//' | comm -23 $tmp1 - >$tmp2

grep -s . $tmp2 >/dev/null
if [ $? = 0 ]; then
        echo "New tests that unexpectedly FAIL:"
        echo
        cat $tmp2
        echo
fi

grep '^FAIL:' "$now_s" | sed 's/^[^:]*:[        ]*//' >$tmp1
grep '^FAIL' "$before_s" | sed 's/^[^:]*:[      ]*//' | comm -12 $tmp1 - >$tmp2

grep -s . $tmp2 >/dev/null
if [ $? = 0 ]; then
        echo "Tests that still don't work:"
        echo
        cat $tmp2
        echo
fi

grep '^PASS' "$now_s" | sed 's/^[^:]*:[         ]*//' >$tmp1
grep '^FAIL' "$before_s" | sed 's/^[^:]*:[      ]*//' | comm -12 $tmp1 - >$tmp2

grep -s . $tmp2 >/dev/null
if [ $? = 0 ]; then
        echo "Tests that now work, but didn't before:"
        echo
        cat $tmp2
        echo
fi

grep '^PASS' "$now_s" | sed 's/^[^:]*:[         ]*//' >$tmp1
grep '^[PFU][A-Z()]*:' "$before_s" | sed 's/^[^:]*:[    ]*//' | comm -23 $tmp1 - >$tmp2

grep -s . $tmp2 >/dev/null
if [ $? = 0 ]; then
        echo "New tests that PASS:"
        echo
        cat $tmp2
        echo
fi

grep '^[PFU][A-Z()]*:' "$now_s" | sed 's/^[^:]*:[       ]*//' >$tmp1
grep '^PASS' "$before_s" | sed 's/^[^:]*:[      ]*//' | comm -13 $tmp1 - >$tmp2

grep -s . $tmp2 >/dev/null
if [ $? = 0 ]; then
        echo "Old tests that passed, that have disappeared: (Eeek!)"
        echo
        cat $tmp2
        echo
fi

grep '^[PFU][A-Z()]*:' "$now_s" | sed 's/^[^:]*:[       ]*//' >$tmp1
grep '^FAIL' "$before_s" | sed 's/^[^:]*:[      ]*//' | comm -13 $tmp1 - >$tmp2

grep -s . $tmp2 >/dev/null
if [ $? = 0 ]; then
        echo "Old tests that failed, that have disappeared: (Eeek!)"
        echo
        cat $tmp2
        echo
fi

egrep '^(ERROR|WARNING):' "$now" >$tmp1

if grep -s . $tmp1 > /dev/null; then
        echo "Errors and warnings:"
        echo
        cat $tmp1
        echo
fi

if [ "$tool" = g++ ]; then
   if [ -f $DEVOBINDIR/libio/run-make-check ]; then
    cd $DEVOBINDIR/libio
    make check >$TMPDIR/clgpp$$ 2>&1
    if [ $? != 0 ]; then
        echo
        echo "libio fails to make check:"
        tail -20 $TMPDIR/clgpp$$
    fi
   fi
   if [ -f $DEVOBINDIR/libstdc++/run-make-check ]; then
    cd $DEVOBINDIR/libstdc++
    make check >$TMPDIR/clgpp$$ 2>&1
    if [ $? != 0 ]; then
        echo
        echo "libstdc++ fails to make check:"
        tail -20 $TMPDIR/clgpp$$
    fi
   fi
   if [ -f $DEVOBINDIR/libg++/run-make-check ]; then
    cd $DEVOBINDIR/libg++
    make check >$TMPDIR/clgpp$$ 2>&1
    if [ $? != 0 ]; then
        echo
        echo "libg++ fails to make check:"
        tail -20 $TMPDIR/clgpp$$
    fi
   fi
   rm -f $TMPDIR/clgpp$$
   cd $DEVOBINDIR
fi

if [ "$devoname" != "" ]; then
        if [ "$showchangelog" = 1 ]; then
                echo "Here is what's new in the ChangeLog:"
                echo
                diff -c $LOGDIR/$devoname.ChangeLog $DEVOSRCDIR/ChangeLog
                echo
                if [ "$tool" = g++ ]; then
                        echo
                        echo "Here is what's new in the ChangeLog.egcs:"
                        echo
                        diff -c $LOGDIR/gcc.ChangeLog.egcs $DEVOSRCDIR/ChangeLog.egcs

                        echo
                        echo "Here is what's new in the cp/ChangeLog:"
                        echo
                        diff -c $LOGDIR/g++.ChangeLog $DEVOSRCDIR/cp/ChangeLog
                fi
                echo
        fi
        if [ "$update" != no ]; then
                # save the old ChangeLog as a reference for next time
                rm -f $LOGDIR/$devoname.ChangeLog.BAK
                mv $LOGDIR/$devoname.ChangeLog $LOGDIR/$devoname.ChangeLog.BAK 2>/dev/null
                $CP $DEVOSRCDIR/ChangeLog $LOGDIR/$devoname.ChangeLog
                if [ "$tool" = g++ ]; then
                        rm -f $LOGDIR/gcc.ChangeLog.egcs.BAK
                        mv $LOGDIR/gcc.ChangeLog.egcs $LOGDIR/gcc.ChangeLog.egcs.BAK 2>/dev/null
                        $CP $DEVOSRCDIR/ChangeLog.egcs $LOGDIR/gcc.ChangeLog.egcs

                        rm -f $LOGDIR/g++.ChangeLog.BAK
                        mv $LOGDIR/g++.ChangeLog $LOGDIR/g++.ChangeLog.BAK 2>/dev/null
                        $CP $DEVOSRCDIR/cp/ChangeLog $LOGDIR/g++.ChangeLog
                fi
        fi
fi

$before | diff - $now | grep -s . >/dev/null
if [ $? = 0 ]; then
        echo "Details:"
        echo
        $before | diff - $now
        echo
fi