build.bash

#!/bin/bash

set -e

SCRIPT=`readlink -f $0`
SCRIPT_DIR=`dirname $SCRIPT`

curl -O --silent --show-error https://dl.google.com/go/go1.16.4.linux-amd64.tar.gz
tar -zxf go1.16.4.linux-amd64.tar.gz

echo "Building joebot..."
platforms=("windows/amd64" "linux/amd64" "darwin/amd64")

echo "Building and embeding HTML resource"
pushd $SCRIPT_DIR/src/joebot
$SCRIPT_DIR/go/bin/go generate

echo "Start cross-compilation"
rm -rf $SCRIPT_DIR/output
for platform in "${platforms[@]}"
do
    platform_split=(${platform//\// })
    GOOS=${platform_split[0]}
    GOARCH=${platform_split[1]}
    output_name='joebot-'$GOOS'-'$GOARCH
    if [ $GOOS = "windows" ]; then
        output_name+='.exe'
    fi  
    
    echo $output_name
    env GOOS=$GOOS GOARCH=$GOARCH $SCRIPT_DIR/go/bin/go build -o $SCRIPT_DIR/output/$output_name
    if [ $? -ne 0 ]; then
        echo 'An error has occurred! Aborting the script execution...'
        exit 1
    fi
done

popd

echo "Clean up"
rm -f go1.16.4.linux-amd64.tar.gz
rm -rf go