redmine/generate-stackbrew-library.sh at master · docker-library/redmine · GitHub

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

declare -A aliases=(
	[7.0]='7 latest'
	[6.1]='6'
)

self="$(basename "$BASH_SOURCE")"
cd "$(dirname "$(readlink -f "$BASH_SOURCE")")"

if [ "$#" -eq 0 ]; then
	versions="$(jq -r 'keys | map(@sh) | join(" ")' versions.json)"
	eval "set -- $versions"
fi

# sort version numbers with highest first
IFS=$'\n'; set -- $(sort -rV <<<"$*"); unset IFS

# get the most recent commit which modified any of "$@"
fileCommit() {
	git log -1 --format='format:%H' HEAD -- "$@"
}

# get the most recent commit which modified "$1/Dockerfile" or any file COPY'd from "$1/Dockerfile"
dirCommit() {
	local dir="$1"; shift
	(
		cd "$dir"
		fileCommit \
			Dockerfile \
			$(git show HEAD:./Dockerfile | awk '
				toupper($1) == "COPY" {
					for (i = 2; i < NF; i++) {
						print $i
					}
				}
			')
	)
}

getArches() {
	local repo="$1"; shift
	local officialImagesBase="${BASHBREW_LIBRARY:-https://github.com/docker-library/official-images/raw/HEAD/library}/"

	local parentRepoToArchesStr
	parentRepoToArchesStr="$(
		find -name 'Dockerfile' -exec awk -v officialImagesBase="$officialImagesBase" '
				toupper($1) == "FROM" && $2 !~ /^('"$repo"'|scratch|.*\/.*)(:|$)/ {
					printf "%s%s\n", officialImagesBase, $2
				}
			' '{}' + \
			| sort -u \
			| xargs -r bashbrew cat --format '["{{ .RepoName }}:{{ .TagName }}"]="{{ join " " .TagEntry.Architectures }}"'
	)"
	eval "declare -g -A parentRepoToArches=( $parentRepoToArchesStr )"
}
getArches 'redmine'

cat <<-EOH
# this file is generated via https://github.com/docker-library/redmine/blob/$(fileCommit "$self")/$self

Maintainers: Tianon Gravi <admwiggin@gmail.com> (@tianon),
             Joseph Ferguson <yosifkit@gmail.com> (@yosifkit)
GitRepo: https://github.com/docker-library/redmine.git
EOH

# prints "$2$1$3$1...$N"
join() {
	local sep="$1"; shift
	local out; printf -v out "${sep//%/%%}%s" "$@"
	echo "${out#$sep}"
}

for version; do
	export version

	variants="$(jq -r '.[env.version].variants | map(@sh) | join(" ")' versions.json)"
	eval "variants=( $variants )"

	alpine="$(jq -r '.[env.version].alpine' versions.json)"
	debian="$(jq -r '.[env.version].debian' versions.json)"

	fullVersion="$(jq -r '.[env.version].version' versions.json)"

	versionAliases=()
	while [ "$fullVersion" != "$version" -a "${fullVersion%[.]*}" != "$fullVersion" ]; do
		versionAliases+=( $fullVersion )
		fullVersion="${fullVersion%[.]*}"
	done
	versionAliases+=(
		$version
		${aliases[$version]:-}
	)

	for variant in "${variants[@]}"; do
		dir="$version/$variant"
		commit="$(dirCommit "$dir")"

		variantParent="$(awk 'toupper($1) == "FROM" { print $2 }' "$dir/Dockerfile")"
		variantArches="${parentRepoToArches[$variantParent]}"

		if [ "$variant" = 'bookworm' ] && [ "$version" != '6.0' ]; then
			# https://github.com/docker-library/redmine/pull/393 (6.1+ deps need newer rust on other arches and just isn't worth the trouble)
			variantArches="$(jq <<<"$variantArches" --raw-input --raw-output '
				split(" ")
				| map(select(IN("amd64", "arm64v8")))
				| join(" ")
			')"
		fi
		if [[ "$variant" = 'alpine'* ]] && [ "$version" != '6.0' ]; then
			# 6.1 alpine fails to build in a reasonable time on arm32v6
			# https://github.com/docker-library/redmine/pull/395
			variantArches="$(jq <<<"$variantArches" --raw-input --raw-output '
				split(" ") - [ "arm32v6" ]
				| join(" ")
			')"
		fi
		if [ "$version" != '6.0' ] && [ "$version" != '6.1' ]; then
			# 7.0+ rust deps of magnus gem don't compile on i386 or arm32vX alpine
			# /home/redmine/.cargo/registry/src/index.crates.io-1949cf8c6b5b557f/magnus-0.8.2/src/time.rs:141:9
			# ...
			# error[E0063]: missing fields `_bitfield_1` and `_bitfield_align_1` in
			# initializer of `timespec`
			if [[ "$variant" = 'alpine'* ]]; then
				variantArches="$(jq <<<"$variantArches" --raw-input --raw-output '
					split(" ") - [ "i386", "arm32v7", "arm32v6" ]
					| join(" ")
				')"
			fi
		fi

		variantAliases=( "${versionAliases[@]/%/-$variant}" )
		variantAliases=( "${variantAliases[@]//latest-/}" )

		case "$variant" in
			"$debian")
				variantAliases=(
					"${versionAliases[@]}"
					"${variantAliases[@]}"
				)
				;;
			alpine"$alpine")
				variantAliases+=( "${versionAliases[@]/%/-alpine}" )
				variantAliases=( "${variantAliases[@]//latest-/}" )
				;;
		esac

		echo
		cat <<-EOE
			Tags: $(join ', ' "${variantAliases[@]}")
			Architectures: $(join ', ' $variantArches)
			GitCommit: $commit
			Directory: $dir
		EOE
	done
done