docker-library--ruby/apply-templates.sh

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#!/usr/bin/env bash
set -Eeuo pipefail
[ -f versions.json ] # run "versions.sh" first
jqt='.jq-template.awk'
if [ -n "${BASHBREW_SCRIPTS:-}" ]; then
jqt="$BASHBREW_SCRIPTS/jq-template.awk"
elif [ "$BASH_SOURCE" -nt "$jqt" ]; then
# https://github.com/docker-library/bashbrew/blob/master/scripts/jq-template.awk
wget -qO "$jqt" 'https://github.com/docker-library/bashbrew/raw/9f6a35772ac863a0241f147c820354e4008edf38/scripts/jq-template.awk'
fi
if [ "$#" -eq 0 ]; then
versions="$(jq -r 'keys | map(@sh) | join(" ")' versions.json)"
eval "set -- $versions"
fi
generated_warning() {
cat <<-EOH
#
# NOTE: THIS DOCKERFILE IS GENERATED VIA "apply-templates.sh"
#
# PLEASE DO NOT EDIT IT DIRECTLY.
#
EOH
}
for version; do
export version
rm -rf "$version/"
variants="$(jq -r '.[env.version].variants | map(@sh) | join(" ")' versions.json)"
eval "variants=( $variants )"
for variant in "${variants[@]}"; do
export variant
dir="$version/$variant"
mkdir -p "$dir"
echo "processing $dir ..."
{
generated_warning
gawk -f "$jqt" Dockerfile.template
} > "$dir/Dockerfile"
done
done