raspiblitz/home.admin/config.scripts/bonus.go.sh

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#!/usr/bin/env sh
# set version, check: https://golang.org/dl/
goVersion="1.17.3"
downloadFolder="/home/admin/download"
usage(){
printf "Config script to install or remove Go\n"
printf "./bonus.go.sh [on|off]\n"
exit 1
}
case "$1" in
1|on) # switch on
. /etc/profile # get Go vars - needed if there was no log-out since Go installed
printf "Check Framework: Go\n"
if go version 2>/dev/null | grep -q "go" ; then
printf "\nVersion of Go requested already installed.\n"
go version
printf "\n"
else
architecture="$(uname -m)"
case "${architecture}" in
arm*) goOSversion="armv6l";;
aarch64) goOSversion="arm64";;
x86_64) goOSversion="amd64";;
*) printf %s"Not available for architecture=${architecture}\n"; exit 1
esac
printf %s"\n*** Installing Go v${goVersion} for ${goOSversion} \n***"
wget https://dl.google.com/go/go${goVersion}.linux-${goOSversion}.tar.gz -P ${downloadFolder}
if [ ! -f "${downloadFolder}/go${goVersion}.linux-${goOSversion}.tar.gz" ]; then
printf "# FAIL # Download failed.\n"
rm -fv go${goVersion}.linux-${goOSversion}.tar.gz*
exit 1
fi
sudo tar -C /usr/local -xzf ${downloadFolder}/go${goVersion}.linux-${goOSversion}.tar.gz
rm -fv ${downloadFolder}/go${goVersion}.linux-${goOSversion}.tar.gz*
sudo mkdir -v /usr/local/gocode
sudo chmod -v 777 /usr/local/gocode
export GOROOT=/usr/local/go
export PATH=$PATH:$GOROOT/bin
export GOPATH=/usr/local/gocode
export PATH=$PATH:$GOPATH/bin
sudo grep -q "GOROOT=" /etc/profile || { printf "\nGOROOT=/usr/local/go\nPATH=\$PATH:\$GOROOT/bin/\nGOPATH=/usr/local/gocode\nPATH=\$PATH:\$GOPATH/bin/\n\n" | sudo tee -a /etc/profile; }
go env -w GOPATH=/usr/local/gocode # set GOPATH https://github.com/golang/go/wiki/SettingGOPATH
go version | grep -q "go" || { printf "FAIL: Unable to install Go\n"; exit 1; }
printf %s"Installed $(go version 2>/dev/null)\n\n"
fi
;;
0|off) # switch off
printf "*** REMOVING GO ***\n"
sudo rm -rf /usr/local/go /usr/local/gocode
printf "OK Go removed.\n"
;;
*) usage
esac