generate.sh

#!/usr/bin/env bash
set -Eeuo pipefail

ql_versions=( "$@" )
if [ ${#ql_versions[@]} -eq 0 ]; then
	ql_versions=( */ )
fi
ql_versions=( "${ql_versions[@]%/}" )

# see http://stackoverflow.com/a/2705678/433558
sed_escape_lhs() {
	echo "$@" | sed -e 's/[]\/$*.^|[]/\\&/g'
}
sed_escape_rhs() {
	echo "$@" | sed -e 's/[\/&]/\\&/g' | sed -e ':a;N;$!ba;s/\n/\\n/g'
}

declare -A python_alpine_versions
python_alpine_versions=(["3.7"]="3.10" ["3.6"]="3.10")
declare -A ql_checksums
ql_checksums=(["1.15"]="bb177822d473c8bd87579ef39b261ca32227fb5492ebd5e21db2e8f090cbc8c6" ["1.16"]="5087b0d9dc13bf276f95e06f16153ace6fe24e152c69e511e132d90000d0668f")
echo "${ql_versions}"
for ql_version in "${ql_versions[@]}"; do
    ql_checksum=${ql_checksums[$ql_version]}
    for python_version in ${!python_alpine_versions[@]}; do
        echo "Generating Dockerfiles for QuantLib version ${ql_version} and Python version ${python_version}."
        template=alpine
        echo "Generating templates for ${template}"
        python_lib_path=python${python_version:0:3}
	    alpine_versions=(${python_alpine_versions[$python_version]//;/ })

        for alpine_version in ${alpine_versions[@]}; do
	        dockerfile_path=$ql_version/python$python_version/$template/$alpine_version 
	        mkdir -p $dockerfile_path
            ql_builder_tag=$ql_version-$template$alpine_version
            python_tag=$python_version-$template$alpine_version

            ql_swig_version="${ql_version}"
            if [ "${ql_swig_version}" = "1.12.1" ]; then
                #1.12.1 was a bugfix release of QuantLib, but there was no corresponding release of QuantLib SWIG, so use 1.12
                ql_swig_version="1.12"
            fi

	        sed -r \
	            -e 's!%%QL_BUILDER_TAG%%!'"$ql_builder_tag"'!g' \
		        -e 's!%%PYTHON_TAG%%!'"$python_tag"'!g' \
	            -e 's!%%QUANTLIB_SWIG_VERSION%%!'"$ql_swig_version"'!g' \
		        -e 's!%%QUANTLIB_SWIG_CHECKSUM%%!'"$ql_checksum"'!g' \
		        -e 's!%%PYTHON_LIB_PATH%%!'"$python_lib_path"'!g' \
                "Dockerfile-${template}.template" > "$dockerfile_path/Dockerfile"
	        echo "Generated ${dockerfile_path}/Dockerfile"
        done
    done
done