#!/bin/bash

set -e

SCRIPTPATH="$( cd "$(dirname "$0")" ; pwd -P )"

if [ -z "$CHECKPERF_REPOSITORY"]; then CHECKPERF_REPOSITORY=.; fi

# Arguments: perfdiff.sh <branch> <test json files>

if [ -z "$1" ]; then reference_branch="master"; else reference_branch=$1; shift; fi

if [ -z "$*" ]; then perftests="jsonexamples/twitter.json"; else perftests=$*; fi

# Clone and build the reference branch's parse

echo "Cloning and build the reference branch ($reference_branch) ..."

current=$SCRIPTPATH/..

reference=$current/benchbranch/$reference_branch

rm -rf $reference

mkdir -p $reference

git clone --depth 1 -b $reference_branch $CHECKPERF_REPOSITORY $reference

cd $reference

make parse

# Build the current branch's parse

echo "Building the current branch ..."

cd $current

make clean

make parse

# Run them and diff performance

make perfdiff

echo "Running perfdiff:"

echo ./perfdiff \"$current/parse -t $perftests $CHECKPERF_ARGS\" \"$reference/parse -t $perftests $CHECKPERF_ARGS\"

./perfdiff "$current/parse -t $perftests $CHECKPERF_ARGS" "$reference/parse -t $perftests $CHECKPERF_ARGS"