#!/usr/bin/env bash

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# 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.

# Where are the svn binaries you want to benchmark?
SVN_A_NAME="1.7.x"
SVN_A="$HOME/pat/bench/prefix/bin/svn"
SVN_B_NAME="trunk"
SVN_B="$HOME/pat/trunk/prefix/bin/svn"

benchmark="$PWD/benchmark.py"

parent="$(date +"%Y%m%d-%H%M%S")"
inital_workdir="$PWD"
mkdir "$parent"
cd "$parent"
pwd


batch(){
  levels="$1"
  spread="$2"
  N="$3"
  pre="${levels}x${spread}_"
  "$benchmark" "--svn=$SVN_A" run "${pre}$SVN_A_NAME" $levels $spread $N >/dev/null
  "$benchmark" "--svn=$SVN_B" run "${pre}$SVN_B_NAME" $levels $spread $N >/dev/null
}

N=6
al=5
as=5
bl=100
bs=1
cl=1
cs=100

##DEBUG
#N=1
#al=1
#as=1
#bl=2
#bs=1
#cl=1
#cs=2
##DEBUG


{
started="$(date)"
echo "Started at $started"

echo "
*Disclaimer:* this tests only file://-URL access on a GNU/Linux VM.
This is intended to measure changes in performance of the local working
copy layer, *only*. These results are *not* generally true for everyone."

batch $al $as $N
batch $bl $bs $N
batch $cl $cs $N

"$benchmark" combine "total_$SVN_A_NAME" *x*"_$SVN_A_NAME" >/dev/null
"$benchmark" combine "total_$SVN_B_NAME" *x*"_$SVN_B_NAME" >/dev/null

echo ""
echo "Averaged-total results across all runs:"
echo "---------------------------------------"
echo ""
"$benchmark" compare "total_$SVN_A_NAME" "total_$SVN_B_NAME"

echo ""
echo ""
echo "Above totals split into separate <dir-levels>x<dir-spread> runs:"
echo "----------------------------------------------------------------"
echo ""

for pre in "${al}x${as}_" "${bl}x${bs}_" "${cl}x${cs}_"; do
  "$benchmark" compare "${pre}$SVN_A_NAME" "${pre}$SVN_B_NAME"
  echo ""
done

echo ""
echo ""
echo "More detail:"
echo "------------"
echo ""

for pre in "${al}x${as}_" "${bl}x${bs}_" "${cl}x${cs}_" "total_"; do
  "$benchmark" compare -v "${pre}$SVN_A_NAME" "${pre}$SVN_B_NAME"
  echo ""
  echo ""
done

echo ""
echo "Had started at $started,"
echo "       done at $(date)"
pwd
} 2>&1 | tee results.txt

cd "$inital_workdir"
if [ -f "$parent/total_trunk" ]; then
  rm -rf "$parent"
fi