rabbitmq/generate-stackbrew-library.sh

140 lines
3.8 KiB
Bash
Executable File

#!/bin/bash
set -eu
declare -A aliases=(
[3.7]='3 latest'
)
defaultVariant='ubuntu'
self="$(basename "$BASH_SOURCE")"
cd "$(dirname "$(readlink -f "$BASH_SOURCE")")"
versions=( */ )
versions=( "${versions[@]%/}" )
# sort version numbers with highest first
IFS=$'\n'; versions=( $(echo "${versions[*]}" | 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"'" $2
}
' '{}' + \
| sort -u \
| xargs bashbrew cat --format '[{{ .RepoName }}:{{ .TagName }}]="{{ join " " .TagEntry.Architectures }}"'
) )"
}
getArches 'rabbitmq'
cat <<-EOH
# this file is generated via https://github.com/docker-library/rabbitmq/blob/$(fileCommit "$self")/$self
Maintainers: Tianon Gravi <admwiggin@gmail.com> (@tianon),
Joseph Ferguson <yosifkit@gmail.com> (@yosifkit)
GitRepo: https://github.com/docker-library/rabbitmq.git
EOH
# prints "$2$1$3$1...$N"
join() {
local sep="$1"; shift
local out; printf -v out "${sep//%/%%}%s" "$@"
echo "${out#$sep}"
}
for version in "${versions[@]}"; do
rcVersion="${version%-rc}"
for variant in ubuntu alpine; do
commit="$(dirCommit "$version/$variant")"
fullVersion="$(git show "$commit":"$version/$variant/Dockerfile" | awk '$1 == "ENV" && $2 == "RABBITMQ_VERSION" { print $3; exit }')"
if [ "$rcVersion" != "$version" ] && [ -e "$rcVersion/$variant/Dockerfile" ]; then
# if this is a "-rc" release, let's make sure the release it contains isn't already GA (and thus something we should not publish anymore)
rcFullVersion="$(git show HEAD:"$rcVersion/$variant/Dockerfile" | awk '$1 == "ENV" && $2 == "RABBITMQ_VERSION" { print $3; exit }')"
if [[ "$fullVersion" == "$rcFullVersion"* ]]; then
# "x.y.z-rc1" == x.y.z*
continue
fi
fi
versionAliases=()
if [ "$version" = "$rcVersion" ]; then
while [ "$fullVersion" != "$version" -a "${fullVersion%[.-]*}" != "$fullVersion" ]; do
versionAliases+=( $fullVersion )
fullVersion="${fullVersion%[.-]*}"
done
else
versionAliases+=( $fullVersion )
fi
versionAliases+=(
$version
${aliases[$version]:-}
)
if [ "$variant" = "$defaultVariant" ]; then
variantAliases=( "${versionAliases[@]}" )
else
variantAliases=( "${versionAliases[@]/%/-$variant}" )
variantAliases=( "${variantAliases[@]//latest-/}" )
fi
variantParent="$(awk 'toupper($1) == "FROM" { print $2 }' "$version/$variant/Dockerfile")"
variantArches="${parentRepoToArches[$variantParent]}"
echo
cat <<-EOE
Tags: $(join ', ' "${variantAliases[@]}")
Architectures: $(join ', ' $variantArches)
GitCommit: $commit
Directory: $version/$variant
EOE
for subVariant in management; do
commit="$(dirCommit "$version/$variant/$subVariant")"
subVariantAliases=( "${versionAliases[@]/%/-$subVariant}" )
subVariantAliases=( "${subVariantAliases[@]//latest-/}" )
if [ "$variant" != "$defaultVariant" ]; then
subVariantAliases=( "${subVariantAliases[@]/%/-$variant}" )
fi
echo
cat <<-EOE
Tags: $(join ', ' "${subVariantAliases[@]}")
Architectures: $(join ', ' $variantArches)
GitCommit: $commit
Directory: $version/$variant/$subVariant
EOE
done
done
done