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Copy pathgenerate-stackbrew-library.sh
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executable file
·169 lines (146 loc) · 4.25 KB
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#!/usr/bin/env bash
set -Eeuo pipefail
declare -A aliases=(
[3.14]='3 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=( $parentRepoToArchesStr )"
}
getArches 'python'
cat <<-EOH
# this file is generated via https://github.com/docker-library/python/blob/$(fileCommit "$self")/$self
Maintainers: Tianon Gravi <admwiggin@gmail.com> (@tianon),
Joseph Ferguson <yosifkit@gmail.com> (@yosifkit)
GitRepo: https://github.com/docker-library/python.git
Builder: buildkit
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=( $variants )"
fullVersion="$(jq -r '.[env.version].version' versions.json)"
versionAliases=(
$fullVersion
$version
${aliases[$version]:-}
)
defaultDebianVariant="$(jq -r '
.[env.version].variants
| map(select(
startswith("alpine")
or startswith("slim-")
or startswith("windows/")
| not
))
| .[0]
' versions.json)"
defaultAlpineVariant="$(jq -r '
.[env.version].variants
| map(select(
startswith("alpine")
))
| .[0]
' versions.json)"
for v in "${variants[@]}"; do
dir="$version/$v"
[ -f "$dir/Dockerfile" ] || continue
variant="$(basename "$v")"
commit="$(dirCommit "$dir")"
variantAliases=( "${versionAliases[@]/%/-$variant}" )
case "$variant" in
*-"$defaultDebianVariant") # slim-xxx -> slim
variantAliases+=( "${versionAliases[@]/%/-${variant%-$defaultDebianVariant}}" )
;;
"$defaultAlpineVariant")
variantAliases+=( "${versionAliases[@]/%/-alpine}" )
;;
esac
variantAliases=( "${variantAliases[@]//latest-/}" )
case "$v" in
windows/*)
variantArches='windows-amd64'
;;
*)
variantParent="$(awk 'toupper($1) == "FROM" { print $2 }' "$dir/Dockerfile")"
variantArches="${parentRepoToArches[$variantParent]}"
;;
esac
# https://github.com/python/cpython/issues/93619 (Linking error when building 3.11 beta on mips64le) + https://peps.python.org/pep-0011/ (mips is not even tier 3)
variantArches="$(sed <<<" $variantArches " -e 's/ mips64le / /g')"
sharedTags=()
for windowsShared in windowsservercore nanoserver; do
if [[ "$variant" == "$windowsShared"* ]]; then
sharedTags=( "${versionAliases[@]/%/-$windowsShared}" )
sharedTags=( "${sharedTags[@]//latest-/}" )
break
fi
done
if [ "$variant" = "$defaultDebianVariant" ] || [[ "$variant" == 'windowsservercore'* ]]; then
sharedTags+=( "${versionAliases[@]}" )
fi
echo
echo "Tags: $(join ', ' "${variantAliases[@]}")"
if [ "${#sharedTags[@]}" -gt 0 ]; then
echo "SharedTags: $(join ', ' "${sharedTags[@]}")"
fi
cat <<-EOE
Architectures: $(join ', ' $variantArches)
GitCommit: $commit
Directory: $dir
EOE
if [[ "$v" == windows/* ]]; then
echo "Constraints: $variant"
echo 'Builder: classic'
fi
done
done