116 lines
2.9 KiB
Bash
Executable File
116 lines
2.9 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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[6.1]='6 latest'
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[5.2]='5'
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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 -- $versions"
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fi
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# sort version numbers with highest first
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IFS=$'\n'; versions=( $(echo "${versions[*]}" | sort -rV) ); unset IFS
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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 officialImagesUrl='https://github.com/docker-library/official-images/raw/master/library/'
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eval "declare -g -A parentRepoToArches=( $(
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find -name 'Dockerfile*' -exec awk '
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toupper($1) == "FROM" && $2 !~ /^(scratch|.*\/.*)(:|$)/ {
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print "'"$officialImagesUrl"'" $2
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}
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' '{}' + \
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| sort -u \
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| xargs bashbrew cat --format '[{{ .RepoName }}:{{ .TagName }}]="{{ join " " .TagEntry.Architectures }}"'
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) )"
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}
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getArches
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cat <<-EOH
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# this file is generated via https://github.com/tianon/docker-qemu/blob/$(fileCommit "$self")/$self
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Maintainers: Tianon Gravi <admwiggin@gmail.com> (@tianon)
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GitRepo: https://github.com/tianon/docker-qemu.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#$sep}"
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}
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for version; do
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fullVersion="$(jq -r --arg version "$version" '.[$version].version' versions.json)"
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rcVersion="${version%-rc}"
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versionAliases=()
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while [ "$fullVersion" != "$rcVersion" -a "${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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$version
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${aliases[$version]:-}
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)
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commit="$(dirCommit "$version")"
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for variant in '' native; do
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variantAliases=( "${versionAliases[@]}" )
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if [ -n "$variant" ]; then
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variantAliases=( "${variantAliases[@]/%/-$variant}" )
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variantAliases=( "${variantAliases[@]//latest-/}" )
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fi
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variantParent="$(awk 'toupper($1) == "FROM" { print $2 }' "$version/Dockerfile${variant:+.$variant}")"
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variantArches="${parentRepoToArches[$variantParent]}"
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suite="${variantParent#*:}" # "buster-slim", "buster"
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suite="${suite%-slim}" # "buster"
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suiteAliases=( "${variantAliases[@]/%/-$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 ', ' $variantArches)
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GitCommit: $commit
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Directory: $version
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EOE
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if [ -n "$variant" ]; then
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echo "File: Dockerfile.$variant"
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fi
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done
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done
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