mirror of
https://github.com/docker-library/ruby.git
synced 2022-11-09 11:41:34 -05:00
125 lines
3.1 KiB
Bash
Executable file
125 lines
3.1 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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[2.5]='2 latest'
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[2.6-rc]='rc'
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)
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defaultDebianSuite='stretch'
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defaultAlpineVersion='3.7'
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self="$(basename "$BASH_SOURCE")"
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cd "$(dirname "$(readlink -f "$BASH_SOURCE")")"
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versions=( */ )
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versions=( "${versions[@]%/}" )
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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 repo="$1"; shift
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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" && $2 !~ /^('"$repo"'|scratch|microsoft\/[^:]+)(:|$)/ {
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print "'"$officialImagesUrl"'" $2
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}
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' '{}' + \
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| sort -u \
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| xargs bashbrew cat --format '[{{ .RepoName }}:{{ .TagName }}]="{{ join " " .TagEntry.Architectures }}"'
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) )"
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}
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getArches 'ruby'
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cat <<-EOH
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# this file is generated via https://github.com/docker-library/ruby/blob/$(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/ruby.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#$sep}"
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}
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for version in "${versions[@]}"; do
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for v in \
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{stretch,jessie}{,/slim} \
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alpine{3.7,3.6} \
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; do
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dir="$version/$v"
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variant="$(basename "$v")"
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if [ "$variant" = 'slim' ]; then
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# convert "slim" into "slim-jessie"
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# https://github.com/docker-library/ruby/pull/142#issuecomment-320012893
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variant="$variant-$(basename "$(dirname "$v")")"
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fi
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[ -f "$dir/Dockerfile" ] || continue
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commit="$(dirCommit "$dir")"
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fullVersion="$(git show "$commit":"$dir/Dockerfile" | awk '$1 == "ENV" && $2 == "RUBY_VERSION" { print $3; exit }')"
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versionAliases=(
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$fullVersion
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$version
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${aliases[$version]:-}
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)
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variantAliases=( "${versionAliases[@]/%/-$variant}" )
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case "$variant" in
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"$defaultDebianSuite")
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variantAliases+=( "${versionAliases[@]}" )
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;;
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*-"$defaultDebianSuite")
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variantAliases+=( "${versionAliases[@]/%/-${variant%-$defaultDebianSuite}}" )
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;;
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"alpine${defaultAlpineVersion}")
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variantAliases+=( "${versionAliases[@]/%/-alpine}" )
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;;
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esac
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variantAliases=( "${variantAliases[@]//latest-/}" )
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variantParent="$(awk 'toupper($1) == "FROM" { print $2 }' "$dir/Dockerfile")"
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variantArches="${parentRepoToArches[$variantParent]}"
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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: $dir
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EOE
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done
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done
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