golang-to-debian-package.sh

#!/bin/bash -xe

apt-get install -yq md5deep wget fakeroot

[ -z "${GO_VERSION}" ] && GO_VERSION=1.17

mkdir -p /tmp/golang/{DEBIAN,usr/local}
cd /tmp/golang/

wget https://dl.google.com/go/go${GO_VERSION}.linux-amd64.tar.gz
tar -C usr/local -xzf go${GO_VERSION}.linux-amd64.tar.gz
rm go${GO_VERSION}.linux-amd64.tar.gz

cat << EOF > DEBIAN/control
Package: golang
Version: ${GO_VERSION}
Section: develop
Architecture: amd64
Maintainer: Eduard Generalov <eduard@generalov.net>
Description: Go is an open source programming language that makes it easy to build simple, reliable, and efficient software. 
EOF


cat << EOF > DEBIAN/postinst
#!/bin/sh -xe
ln -sf /usr/local/go/bin/go /usr/local/bin/go
EOF

cat << EOF > DEBIAN/prerm
#!/bin/sh -xe
[ -f /usr/local/bin/go ] && rm /usr/local/bin/go
EOF

chmod +x DEBIAN/postinst DEBIAN/prerm

md5deep -r usr > DEBIAN/md5sums

fakeroot dpkg-deb --build ${PWD} /tmp/go_${GO_VERSION}_amd64.deb

dpkg -i /tmp/go_${GO_VERSION}_amd64.deb