Automatically build multi-platform, compressed binaries for Go in the current directory.

go-builder.sh

#!/usr/bin/env bash
# MIT License
# Copyright (c) 2020 Lucian Maly, <lucian@redhat.com>
# Raspberry Pi sometimes need more env to be built correctly, depending on the ARM version:
# `GOOS=linux GOARCH=arm GOARM=7 CGO_ENABLED=0 go build` worked for my Raspberry [ARMv7 Processor rev 5 v7l]

cyan=`tput setaf 14`
beige=`tput setaf 215`
white=`tput setaf 15`
black=`tput setaf 0`
reset=`tput sgr0`
echo $"${cyan}      ´.-::::::-.´"
echo $"${cyan}  .:-::::::::::::::-:."
echo $"${cyan}  ´_::${white}:    ::    :${cyan}::_´"
echo $"${cyan}   .:${white}( ^   :: ^   )${cyan}:."
echo $"${cyan}   ´::${white}:   ${beige}(${black}..${beige})${white}   :${cyan}::."
echo $"${cyan}   ´:::::::${white}UU${cyan}:::::::´"
echo $"${cyan}   .::::::::::::::::."
echo $"${beige}   O${cyan}::::::::::::::::${beige}O"
echo $"${cyan}   -::::::::::::::::-"
echo $"${cyan}   ´::::::::::::::::´"
echo $"${cyan}    .::::::::::::::."
echo $"${beige}      oO${cyan}:::::::${beige}Oo"
echo "${reset}"

package=$1
if [[ -z "$package" ]]; then
  echo "Usage: $0 <package-name-in-the-\$GOPATH/src/>"
  echo "Automatically build multi-platform, compressed binaries for Go in the current directory."
  echo "Example: $ $0 github.com/luckylittle/example"
  echo "Requirements: \$GOPATH, go, git, zip"
  exit 1
fi
package_split=(${package//\// })
package_name=${package_split[-1]}

platforms=("linux/amd64" "linux/386" "linux/arm64" "linux/arm" "windows/amd64" "windows/386" "darwin/amd64")
gittag='v'$(git -C $GOPATH/src/$package --no-pager tag)

md5='```'
md5+="\n#MD5SUMS:\n"
for platform in "${platforms[@]}"
do
  platform_split=(${platform//\// })
  GOOS=${platform_split[0]}
  GOARCH=${platform_split[1]}
  output_name=$package_name'-'$gittag'-'$GOOS'-'$GOARCH
  if [ $GOOS = "windows" ]; then
    output_name+='.exe'
  fi

  env GOOS=$GOOS GOARCH=$GOARCH CGO_ENABLED=0 go build -o $output_name $package
  if [ $GOOS = "windows" ]; then
    zipfile="${output_name%%.exe}"
  else zipfile=$output_name
  fi
  md5+="$(md5sum $output_name)\n"
  zip -rm $zipfile'.zip' $output_name
  if [ $? -ne 0 ]; then
    echo 'An error has occurred!'
    exit 1
  fi
done
md5+="Generated by https://gist.github.com/luckylittle/55c4125d983fb3c4010cb3e1f5945ead\n"
md5+='```'
echo -e $md5