#!/bin/bash
set -eo pipefail

baseDir="$( cd "$(dirname "$0")" && pwd )"
cd "$baseDir"

echo "Please notice, that this build script includes metadata into the build."
echo "This information is useful for debugging and license compliance."
echo "Run the compiled binary with the version command to see the information included."

# Get version.
VERSION="$(git tag --points-at)" || true
test -z "$VERSION" && DEV_VERSION="$(git describe --tags --first-parent --abbrev=0)" || true
test -n "$DEV_VERSION" && VERSION="${DEV_VERSION}_dev_build"
test -z "$VERSION" && VERSION="dev_build"
BUILD_SOURCE=$( ( git remote -v | cut -f2 | cut -d" " -f1 | head -n 1 ) || echo "unknown" )
BUILD_TIME=$(date -u "+%Y-%m-%dT%H:%M:%SZ" || echo "unknown")

LDFLAGS="-X main.Version=${VERSION} -X main.BuildSource=${BUILD_SOURCE} -X main.BuildTime=${BUILD_TIME}"

# build output name
BIN_NAME="jess"
if [[ "$GOOS" == "windows" ]]; then
  BIN_NAME="${BIN_NAME}.exe"
fi

# Build.
export CGO_ENABLED=0
go build -o "${BIN_NAME}" -ldflags "$LDFLAGS" "$@"