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postgres/generate-stackbrew-library.sh

136 lines
3.3 KiB
Bash
Executable File

#!/usr/bin/env bash
set -Eeuo pipefail
declare -A aliases=(
[17]='latest'
)
self="$(basename "$BASH_SOURCE")"
cd "$(dirname "$(readlink -f "$BASH_SOURCE")")"
if [ "$#" -eq 0 ]; then
versions="$(jq -r 'keys | map(@sh) | 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"
files="$(
git show HEAD:./Dockerfile | awk '
toupper($1) == "COPY" {
for (i = 2; i < NF; i++) {
if ($i ~ /^--from=/) {
next
}
print $i
}
}
'
)"
fileCommit Dockerfile $files
)
}
getArches() {
local repo="$1"; shift
local officialImagesBase="${BASHBREW_LIBRARY:-https://github.com/docker-library/official-images/raw/HEAD/library}/"
local parentRepoToArchesStr
parentRepoToArchesStr="$(
find -name 'Dockerfile' -exec awk -v officialImagesBase="$officialImagesBase" '
toupper($1) == "FROM" && $2 !~ /^('"$repo"'|scratch|.*\/.*)(:|$)/ {
printf "%s%s\n", officialImagesBase, $2
}
' '{}' + \
| sort -u \
| xargs -r bashbrew cat --format '["{{ .RepoName }}:{{ .TagName }}"]="{{ join " " .TagEntry.Architectures }}"'
)"
eval "declare -g -A parentRepoToArches=( $parentRepoToArchesStr )"
}
getArches 'postgres'
cat <<-EOH
# this file is generated via https://github.com/docker-library/postgres/blob/$(fileCommit "$self")/$self
Maintainers: Tianon Gravi <admwiggin@gmail.com> (@tianon),
Joseph Ferguson <yosifkit@gmail.com> (@yosifkit)
GitRepo: https://github.com/docker-library/postgres.git
EOH
# prints "$2$1$3$1...$N"
join() {
local sep="$1"; shift
local out; printf -v out "${sep//%/%%}%s" "$@"
echo "${out#$sep}"
}
for version; do
export version
variants="$(jq -r '.[env.version].variants | map(@sh) | join(" ")' versions.json)"
eval "variants=( $variants )"
alpine="$(jq -r '.[env.version].alpine' versions.json)"
debian="$(jq -r '.[env.version].debian' versions.json)"
fullVersion="$(jq -r '.[env.version].version' versions.json)"
# ex: 9.6.22, 13.3, or 14beta2
versionAliases=(
$fullVersion
)
# skip unadorned "version" on prereleases: https://www.postgresql.org/developer/beta/
# ex: 9.6, 13, or 14
case "$fullVersion" in
*alpha* | *beta* | *rc*) ;;
*) versionAliases+=( $version ) ;;
esac
# ex: 9 or latest
versionAliases+=(
${aliases[$version]:-}
)
for variant in "${variants[@]}"; do
dir="$version/$variant"
commit="$(dirCommit "$dir")"
parent="$(awk 'toupper($1) == "FROM" { print $2 }' "$dir/Dockerfile")"
arches="${parentRepoToArches[$parent]}"
variantAliases=( "${versionAliases[@]/%/-$variant}" )
variantAliases=( "${variantAliases[@]//latest-/}" )
case "$variant" in
"$debian")
variantAliases=(
"${versionAliases[@]}"
"${variantAliases[@]}"
)
;;
alpine"$alpine")
variantAliases+=( "${versionAliases[@]/%/-alpine}" )
variantAliases=( "${variantAliases[@]//latest-/}" )
;;
esac
echo
cat <<-EOE
Tags: $(join ', ' "${variantAliases[@]}")
Architectures: $(join ', ' $arches)
GitCommit: $commit
Directory: $dir
EOE
done
done