#!/bin/bash

set -Eeuo pipefail

declare -A r_versions=(

[4.1]='4.1.3'

[4.2]='4.2.3'

[4.3]='4.3.3'

[4.4]='4.4.3'

[4.5]='4.5.3'

[devel]='devel'

[next]='next'

)

declare -A os_identifiers=(

[jammy]='ubuntu-2204'

[noble]='ubuntu-2404'

[resolute]='ubuntu-2604'

[bookworm]='debian-12'

[trixie]='debian-13'

[centos7]='centos-7'

[rockylinux8]='centos-8'

[rockylinux9]='rhel-9'

[rockylinux10]='rhel-10'

[opensuse156]='opensuse-156'

)

generated_warning() {

cat <<-EOH

#

# NOTE: THIS DOCKERFILE IS GENERATED VIA "update.sh"

#

# PLEASE DO NOT EDIT IT DIRECTLY.

#

EOH

}

for version in "${!r_versions[@]}"; do

for variant in "${!os_identifiers[@]}"; do

# R 3.x versions are not supported on Rocky Linux 10

major=$(cut -d '.' -f1 <<< "$version")

if [[ "$variant" == "rockylinux10" ]] && [ "$major" == "3" ]; then

continue

fi

dir="$version/$variant"

mkdir -p $dir

case "$variant" in

jammy|noble|resolute) template='ubuntu'

;;

bookworm|trixie) template='debian'

;;

centos7|rockylinux8) template='centos'

;;

rockylinux9|rockylinux10) template='rockylinux'

;;

opensuse156) template='opensuse'

;;

esac

template="Dockerfile-${template}.template"

{ generated_warning; cat "$template"; } > "$dir/Dockerfile"

sed -ri \

-e "s/%%VARIANT%%/${variant}/" \

-e "s/%%R_VERSION%%/${r_versions[$version]}/" \

-e "s/%%OS_IDENTIFIER%%/${os_identifiers[$variant]}/" \

"$dir/Dockerfile"

# Record MAJOR.MINOR.PATCH version as the tag alias

echo "${r_versions[$version]}" > "$dir/version.txt"

done

done