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generate-stackbrew-library.sh
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generate-stackbrew-library.sh
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#!/usr/bin/env bash
set -Eeuo pipefail
declare -A aliases=(
[7.0]='7 latest'
[6.0]='6'
[5.0]='5'
[4.4]='4'
)
self="$(basename "$BASH_SOURCE")"
cd "$(dirname "$(readlink -f "$BASH_SOURCE")")"
if [ "$#" -eq 0 ]; then
versions="$(jq -r 'to_entries | map(if .value then .key | @sh else empty end) | 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 officialImagesUrl='https://github.com/docker-library/official-images/raw/master/library/'
eval "declare -g -A parentRepoToArches=( $(
find -name 'Dockerfile' -exec awk '
toupper($1) == "FROM" && $2 !~ /^('"$repo"'|scratch|.*\/.*)(:|$)/ {
print "'"$officialImagesUrl"'" $2
}
' '{}' + \
| sort -u \
| xargs bashbrew cat --format '[{{ .RepoName }}:{{ .TagName }}]="{{ join " " .TagEntry.Architectures }}"'
) )"
}
getArches 'mongo'
cat <<-EOH
# this file is generated via https://github.com/docker-library/mongo/blob/$(fileCommit "$self")/$self
Maintainers: Tianon Gravi <admwiggin@gmail.com> (@tianon),
Joseph Ferguson <yosifkit@gmail.com> (@yosifkit)
GitRepo: https://github.com/docker-library/mongo.git
EOH
# prints "$2$1$3$1...$N"
join() {
local sep="$1"; shift
local out; printf -v out "${sep//%/%%}%s" "$@"
echo "${out#$sep}"
}
for version; do
rcVersion="${version%-rc}"
export version rcVersion
if ! fullVersion="$(jq -er '.[env.version] | if . then .version else empty end' versions.json)"; then
continue
fi
if [ "$rcVersion" != "$version" ] && [ -e "$rcVersion/Dockerfile" ]; then
# if this is a "-rc" release, let's make sure the release it contains isn't already GA (and thus something we should not publish anymore)
rcFullVersion="$(jq -r '.[env.rcVersion].version' versions.json)"
latestVersion="$({ echo "$fullVersion"; echo "$rcFullVersion"; } | sort -V | tail -1)"
if [[ "$fullVersion" == "$rcFullVersion"* ]] || [ "$latestVersion" = "$rcFullVersion" ]; then
# "x.y.z-rc1" == x.y.z*
continue
fi
fi
versionAliases=(
$fullVersion
$version
${aliases[$version]:-}
)
variants="$(jq -r '.[env.version].targets.windows.variants | [""] + map("windows/" + .) | map(@sh) | join(" ")' versions.json)"
eval "variants=( $variants )"
for v in "${variants[@]}"; do
dir="$version${v:+/$v}"
commit="$(dirCommit "$dir")"
if [ -z "$v" ]; then
variant="$(jq -r '.[env.version] | .targets[.linux].suite' versions.json)" # "bionic", etc.
else
variant="$(basename "$v")" # windowsservercore-1809, etc.
fi
variantAliases=( "${versionAliases[@]/%/-$variant}" )
variantAliases=( "${variantAliases[@]//latest-/}" )
sharedTags=()
for windowsShared in windowsservercore nanoserver; do
if [[ "$variant" == "$windowsShared"* ]]; then
sharedTags=( "${versionAliases[@]/%/-$windowsShared}" )
sharedTags=( "${sharedTags[@]//latest-/}" )
break
fi
done
if [[ "$variant" == 'windowsservercore'* ]] || [ -z "$v" ]; then
sharedTags+=( "${versionAliases[@]}" )
fi
case "$v" in
windows/*)
# this is the really long way to say "windows-amd64"
variantArches="$(jq -r '.[env.version] | .targets.windows.arches | map("windows-" + . | @sh) | join(" ")' versions.json)"
;;
*)
variantArches="$(jq -r '.[env.version] | .targets[.linux].arches | map(@sh) | join(" ")' versions.json)"
;;
esac
eval "variantArches=( $variantArches )"
constraints=
if [ -n "$v" ]; then
constraints="$variant"
if [[ "$variant" == nanoserver-* ]]; then
# nanoserver variants "COPY --from=...:...-windowsservercore-... ..."
constraints+=", windowsservercore-${variant#nanoserver-}"
fi
fi
echo
echo "Tags: $(join ', ' "${variantAliases[@]}")"
if [ "${#sharedTags[@]}" -gt 0 ]; then
echo "SharedTags: $(join ', ' "${sharedTags[@]}")"
fi
cat <<-EOE
Architectures: $(join ', ' "${variantArches[@]}")
GitCommit: $commit
Directory: $dir
EOE
[ -z "$constraints" ] || echo "Constraints: $constraints"
done
done