#!/usr/bin/env bash

# Build script for JobSearch release

set -euo pipefail

BUILD_DIR="build"
RELEASE_DIR="release"

DO_RELEASE=1

BUILD_TIME=$(date -u '+%Y-%m-%d_%H:%M:%S')
GIT_COMMIT=
VERSION=$(git describe --tags --abbrev=0 2>/dev/null || echo 'unknown')
VERSION_TAG=$(git describe --tags 2>/dev/null || echo 'unknown')

if [ "$VERSION" != "$VERSION_TAG" ]; then
    echo "Development build detected! (not installing to release)"
    GIT_COMMIT=$(git rev-parse --short HEAD 2>/dev/null || echo 'unknown')
    VERSION="${VERSION}.${GIT_COMMIT}"
    DO_RELEASE=0
fi

LD_FLAGS=${LD_FLAGS:-""}
LD_FLAGS="$LD_FLAGS -X git.avsdev.uk/Go/JobSearch/internal/version.Version=${VERSION}"
LD_FLAGS="$LD_FLAGS -X git.avsdev.uk/Go/JobSearch/internal/version.BuildTime=${BUILD_TIME}"
if [ "$GIT_COMMIT" != "" ]; then
    LD_FLAGS="$LD_FLAGS -X git.avsdev.uk/Go/JobSearch/internal/version.GitCommit=${GIT_COMMIT}"
fi

# Build binary with version info
go build \
    -ldflags="$LD_FLAGS" \
    -trimpath \
    -o $BUILD_DIR/job-search-$VERSION \
    ./

# If proper release, copy to output directory for packaging
if [[ $DO_RELEASE -eq 1 ]]; then
    install -DT $BUILD_DIR/job-search-$VERSION $RELEASE_DIR/job-search
fi