#!/usr/bin/env bash
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#
#   http://www.apache.org/licenses/LICENSE-2.0
#
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# Compare TPC-H benchmarks between two branches

set -e

SCRIPT_DIR=$( cd -- "$( dirname -- "${BASH_SOURCE[0]}" )" &> /dev/null && pwd )

usage() {
    echo "Usage: $0 <branch1> <branch2>"
    echo ""
    echo "Example: $0 main dev2"
    exit 1
}

BRANCH1=${1:-""}
BRANCH2=${2:-""}

if [ -z "$BRANCH1" ] || [ -z "$BRANCH2" ]; then
    usage
fi

# Store current branch
CURRENT_BRANCH=$(git rev-parse --abbrev-ref HEAD)

echo "Comparing TPC-H benchmarks: ${BRANCH1} vs ${BRANCH2}"

# Run benchmark on first branch
git checkout "$BRANCH1"
./benchmarks/bench.sh run tpch

# Run benchmark on second branch
git checkout "$BRANCH2"
./benchmarks/bench.sh run tpch

# Compare results
./benchmarks/bench.sh compare "$BRANCH1" "$BRANCH2"

# Return to original branch
git checkout "$CURRENT_BRANCH"