120 lines
3.0 KiB
Bash
Executable File
120 lines
3.0 KiB
Bash
Executable File
#!/usr/bin/env bash
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set -Eeuo pipefail
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declare -A aliases=(
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[1]='latest'
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)
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self="$(basename "$BASH_SOURCE")"
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cd "$(dirname "$(readlink -f "$BASH_SOURCE")")"
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if [ "$#" -eq 0 ]; then
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versions="$(jq -r 'keys | map(@sh) | join(" ")' versions.json)"
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eval "set -- $versions"
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fi
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# get the most recent commit which modified any of "$@"
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fileCommit() {
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git log -1 --format='format:%H' HEAD -- "$@"
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}
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# get the most recent commit which modified "$1/Dockerfile" or any file COPY'd from "$1/Dockerfile"
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dirCommit() {
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local dir="$1"; shift
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(
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cd "$dir"
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fileCommit \
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Dockerfile \
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$(git show HEAD:./Dockerfile | awk '
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toupper($1) == "COPY" {
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for (i = 2; i < NF; i++) {
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print $i
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}
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}
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')
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)
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}
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getArches() {
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local repo="$1"; shift
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local officialImagesBase="${BASHBREW_LIBRARY:-https://github.com/docker-library/official-images/raw/HEAD/library}/"
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local parentRepoToArchesStr
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parentRepoToArchesStr="$(
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find -name 'Dockerfile' -exec awk -v officialImagesBase="$officialImagesBase" '
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toupper($1) == "FROM" && $2 !~ /^('"$repo"'|scratch|.*\/.*)(:|$)/ {
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printf "%s%s\n", officialImagesBase, $2
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}
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' '{}' + \
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| sort -u \
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| xargs -r bashbrew cat --format '["{{ .RepoName }}:{{ .TagName }}"]="{{ join " " .TagEntry.Architectures }}"'
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)"
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eval "declare -g -A parentRepoToArches=( $parentRepoToArchesStr )"
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}
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getArches 'memcached'
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cat <<-EOH
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# this file is generated via https://github.com/docker-library/memcached/blob/$(fileCommit "$self")/$self
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Maintainers: Tianon Gravi <admwiggin@gmail.com> (@tianon),
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Joseph Ferguson <yosifkit@gmail.com> (@yosifkit)
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GitRepo: https://github.com/docker-library/memcached.git
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EOH
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# prints "$2$1$3$1...$N"
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join() {
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local sep="$1"; shift
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local out; printf -v out "${sep//%/%%}%s" "$@"
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echo "${out#$sep}"
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}
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for version; do
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export version
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fullVersion="$(jq -r '.[env.version].version' versions.json)"
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versionAliases=()
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while [ "${fullVersion%.*}" != "$fullVersion" ]; do
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versionAliases+=( $fullVersion )
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fullVersion="${fullVersion%.*}"
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done
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versionAliases+=(
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$fullVersion
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${aliases[$version]:-}
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)
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for variant in debian alpine; do
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export variant
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dir="$version/$variant"
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commit="$(dirCommit "$dir")"
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if [ "$variant" = 'debian' ]; then
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variantAliases=( "${versionAliases[@]}" )
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else
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variantAliases=( "${versionAliases[@]/%/-$variant}" )
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variantAliases=( "${variantAliases[@]//latest-/}" )
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fi
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parent="$(awk 'toupper($1) == "FROM" { print $2 }' "$dir/Dockerfile")"
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arches="${parentRepoToArches[$parent]}"
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suite="${parent#*:}" # "bookworm-slim", "bookworm"
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suite="${suite%-slim}" # "bookworm"
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if [ "$variant" = 'alpine' ]; then
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suite="alpine$suite" # "alpine3.18"
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fi
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suiteAliases=( "${versionAliases[@]/%/-$suite}" )
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suiteAliases=( "${suiteAliases[@]//latest-/}" )
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variantAliases+=( "${suiteAliases[@]}" )
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echo
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cat <<-EOE
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Tags: $(join ', ' "${variantAliases[@]}")
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Architectures: $(join ', ' $arches)
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GitCommit: $commit
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Directory: $dir
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EOE
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done
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done
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