#!/bin/sh

# Licensed to the Apache Software Foundation (ASF) under one
# or more contributor license agreements.  See the NOTICE file
# distributed with this work for additional information
# regarding copyright ownership.  The ASF licenses this file
# to you under the Apache License, Version 2.0 (the
# "License"); you may not use this file except in compliance
# with the License.  You may obtain a copy of the License at
#
#   http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
# KIND, either express or implied.  See the License for the
# specific language governing permissions and limitations
# under the License.

[ -n "$pop_url" ] || exit 101
if [ -z "$pop_build_info" ]; then
    pop_build_info="nbbuild/build/build_info"
fi
[ -n "$pop_job" ] || exit 103

[ -n "$push_url" ] || exit 113
[ -n "$push_username" ] || exit 114


testresult() {
    if [ -z "$4" ]; then
        FAILURES="0"
    else
        FAILURES="$4"
    fi

    FILE="$1/TEST-hg.$2.xml"
    echo '<?xml version="1.0" encoding="UTF-8" ?>' >$FILE
    echo '<testsuite errors="0" failures="'$FAILURES'" name="hg.'$2'" tests="1" time="1">' >>$FILE
    echo '  <properties>' >>$FILE
    echo '  </properties>' >>$FILE
    echo '  <testcase classname="hg.'$2'" name="hg.'$2'" time="1">' >>$FILE
    if [ "$FAILURES" -gt "0" ]; then
        echo '  <failure message="Failed"/>' >>$FILE
    fi
    echo '  </testcase>' >>$FILE
    echo '  <system-out><![CDATA[' >>$FILE
    echo "$3" >>$FILE
    echo ']]></system-out>' >>$FILE
    echo '  <system-err></system-err>' >>$FILE
    echo '</testsuite>' >>$FILE
}

testmodule() {
    if ant $ANT_PARAM -f $1/build.xml test-unit -Dtest-unit-sys-prop.ignore.random.failures=true; then
        echo Test OK: $1
    else
        echo $1 >>$RESULT
        exit 5
    fi
}

rollback() {
  EXIT="$?"
  if [ -n "$BASETIP" ]; then
    echo "Script failed with exitcode $EXIT rolling back to $BASETIP"
    hg update -C
    hg --config extensions.mq= strip -n "$BASETIP"
    hg pull -r "$BASETIP"
  else
    echo "No rollback, exitcode $EXIT"
  fi
}

if [ -z "$TMP" ]; then
  TMP="/tmp"
fi

ANT_OPTS="-Xmx512m"
export ANT_OPTS

BASETIP=`hg log -r . --template '{node}'`
trap rollback EXIT

hg up -C tip
hg --config extensions.purge= clean --all

TESTDIR="nbbuild/build/test/results/"
mkdir -p $TESTDIR

mkdir -p "nbbuild/build"
STATUS="nbbuild/build/build-info"
curl -H "Cache-Control: no-cache" $pop_job/buildStatus -D "$STATUS"
cat "$STATUS"

echo Getting Build Info
HGINFO=`curl -vvvv -H "Cache-Control: no-cache" $pop_job/lastStableBuild/artifact/$pop_build_info`
echo Build info: $HGINFO
testresult "$TESTDIR" "build.info" "$HGINFO"
[ -n "$HGINFO" ] || exit 1

HGID=`echo "$HGINFO" | grep "Hg ID"`
echo Last build_info line: "$HGID"
HGTIP=`echo "$HGID" | cut -f 2 -d ":" | while read X; do echo $X; done`
echo Last OK revision: "$HGTIP"

hg pull -r "$HGTIP" "$pop_url" || exit 5
echo 'hg parent:'
hg parent
if [ `hg heads --template '{node|short}\n' | wc -l` = 1 ]
then
   hg up || exit 6
else
   if hg --config ui.merge=internal:merge --config ui.interactive=1 merge "$HGTIP" < /dev/null; then
     echo Merge OK.
   else
     echo Merge failed.
     hg heads
     exit 7
   fi
   hg ci -u "$push_username"@netbeans.org -m "Merge of $pop_url" || exit 8
fi
HGOUT=`hg out $push_url`
testresult "$TESTDIR" "outgoing.changes" "$HGOUT"

OUT_COUNT=`hg out --no-merges --template 'change: {node|short}\n' $push_url | grep '^change: ' | wc -l`
if [ "$OUT_COUNT" -gt 0 ]; then
    echo "Let the build start. There are $OUT_COUNT outgoing changes."
else
    echo "No outgoing changes. No reason to do build."
    echo >"nbbuild/no-outgoing-changes-no-build.zip"
    if egrep "Location:.*/blue(_anime)?[.]" "$STATUS"; then
        echo Build seems to be stable
        testresult "$TESTDIR" "check.build.stable" "`cat $STATUS`"
    else
        echo Build is not stable
        testresult "$TESTDIR" "check.build.stable" "`cat $STATUS`" "1"
        echo >"nbbuild/downstream-builder-not-stable-no-push.zip"
    fi
    exit 0
fi

. `dirname $0`/round-robin-build

if dobuild; then
    for i in 1 2 3 4 5 6 7 8 9 10; do
        if hg push -f "$push_url"; then
            echo "Build and push successful"
            unset BASETIP
            exit 0
        fi
    done
    echo "Push failed"
    exit 1
else
    echo "Failure, rolling back own commits to $BASETIP"
    exit 1
fi