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Copy pathversions.sh
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executable file
·226 lines (201 loc) · 6.3 KB
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#!/usr/bin/env bash
set -Eeuo pipefail
shopt -s nullglob
cd "$(dirname "$(readlink -f "$BASH_SOURCE")")"
versions=( "$@" )
if [ ${#versions[@]} -eq 0 ]; then
versions=( */ )
json='{}'
else
json="$(< versions.json)"
fi
versions=( "${versions[@]%/}" )
declare -A checksums=()
check_file() {
local dirVersion="$1"; shift
local fullVersion="$1"; shift
local type="${1:-source}" # "source" or "windows"
local filename="Python-$fullVersion.tar.xz"
if [ "$type" = 'windows' ]; then
filename="python-$fullVersion-amd64.exe"
fi
local url="https://www.python.org/ftp/python/$dirVersion/$filename"
local sigstore
if sigstore="$(
wget -qO- -o/dev/null "$url.sigstore" \
| jq -r '
.messageSignature.messageDigest
| if .algorithm != "SHA2_256" then
error("sigstore bundle not using SHA2_256")
else .digest end
'
)" && [ -n "$sigstore" ]; then
sigstore="$(base64 -d <<<"$sigstore" | hexdump -ve '/1 "%02x"')"
checksums["$fullVersion"]="$(jq <<<"${checksums["$fullVersion"]:-null}" --arg type "$type" --arg sha256 "$sigstore" '.[$type].sha256 = $sha256')"
return 0
fi
# TODO is this even necessary/useful? the sigstore-based version above is *much* faster, supports all current versions (not just 3.12+ like this), *and* should be more reliable 🤔
local sbom
if sbom="$(
wget -qO- -o/dev/null "$url.spdx.json" \
| jq --arg filename "$filename" '
first(
.packages[]
| select(
.name == "CPython"
and .packageFileName == $filename
)
)
| .checksums
| map({
key: (.algorithm // empty | ascii_downcase),
value: (.checksumValue // empty),
})
| if length < 1 then
error("no checksums found for \($filename)")
else . end
| from_entries
| if has("sha256") then . else
error("missing sha256 for \($filename); have \(.)")
end
'
)" && [ -n "sbom" ]; then
checksums["$fullVersion"]="$(jq <<<"${checksums["$fullVersion"]:-null}" --arg type "$type" --argjson sums "$sbom" '.[$type] += $sums')"
return 0
fi
if ! wget -q -O /dev/null -o /dev/null --spider "$url"; then
return 1
fi
return 0
}
for version in "${versions[@]}"; do
rcVersion="${version%-rc}"
export version rcVersion
rcGrepV='-v'
if [ "$rcVersion" != "$version" ]; then
rcGrepV=
fi
possibles=( $(
{
git ls-remote --tags https://github.com/python/cpython.git "refs/tags/v${rcVersion}.*" \
| sed -r 's!^.*refs/tags/v([0-9a-z.]+).*$!\1!' \
| grep $rcGrepV -E -- '[a-zA-Z]+' \
|| :
# this page has a very aggressive varnish cache in front of it, which is why we also scrape tags from GitHub
wget -qO- 'https://www.python.org/ftp/python/' \
| grep '<a href="'"$rcVersion." \
| sed -r 's!.*<a href="([^"/]+)/?".*!\1!' \
| grep $rcGrepV -E -- '[a-zA-Z]+' \
|| :
} | sort -ruV
) )
fullVersion=
hasWindows=
declare -A impossible=()
for possible in "${possibles[@]}"; do
rcPossible="${possible%%[a-z]*}"
# varnish is great until it isn't (usually the directory listing we scrape below is updated/uncached significantly later than the release being available)
if check_file "$rcPossible" "$possible"; then
fullVersion="$possible"
if check_file "$rcPossible" "$possible" windows; then
hasWindows=1
fi
break
fi
if [ -n "${impossible[$rcPossible]:-}" ]; then
continue
fi
impossible[$rcPossible]=1
possibleVersions=( $(
wget -qO- -o /dev/null "https://www.python.org/ftp/python/$rcPossible/" \
| grep '<a href="Python-'"$rcVersion"'.*\.tar\.xz"' \
| sed -r 's!.*<a href="Python-([^"/]+)\.tar\.xz".*!\1!' \
| grep $rcGrepV -E -- '[a-zA-Z]+' \
| sort -rV \
|| true
) )
for possibleVersion in "${possibleVersions[@]}"; do
if check_file "$rcPossible" "$possibleVersion"; then
fullVersion="$possibleVersion"
if check_file "$rcPossible" "$possible" windows; then
hasWindows=1
fi
break
fi
done
done
if [ -z "$fullVersion" ]; then
{
echo
echo
echo " error: cannot find $version (alpha/beta/rc?)"
echo
echo
} >&2
exit 1
fi
ensurepipVersions="$(
wget -qO- "https://github.com/python/cpython/raw/v$fullVersion/Lib/ensurepip/__init__.py" \
| grep -E '^[^[:space:]]+_VERSION[[:space:]]*='
)"
# Note: We don't extract the pip version here, since our policy is now to use the pip version
# that is installed during the Python build (which is the version bundled in ensurepip), and
# to not support overriding it.
# TODO remove setuptools version handling entirely once Python 3.11 is EOL
setuptoolsVersion="$(sed -nre 's/^_SETUPTOOLS_VERSION[[:space:]]*=[[:space:]]*"(.*?)".*/\1/p' <<<"$ensurepipVersions")"
case "$rcVersion" in
3.9 | 3.10 | 3.11)
if [ -z "$setuptoolsVersion" ]; then
echo >&2 "error: $version: missing setuptools version"
exit 1
fi
if ! wget -q -O /dev/null -o /dev/null --spider "https://pypi.org/pypi/setuptools/$setuptoolsVersion/json"; then
echo >&2 "error: $version: setuptools version ($setuptoolsVersion) seems to be invalid?"
exit 1
fi
# https://github.com/docker-library/python/issues/781 (TODO remove this if 3.10 and 3.11 embed a newer setuptools and this section no longer applies)
if [ "$setuptoolsVersion" = '65.5.0' ]; then
setuptoolsVersion='65.5.1'
fi
;;
*)
# https://github.com/python/cpython/issues/95299 -> https://github.com/python/cpython/commit/ece20dba120a1a4745721c49f8d7389d4b1ee2a7
if [ -n "$setuptoolsVersion" ]; then
echo >&2 "error: $version: unexpected setuptools: $setuptoolsVersion"
exit 1
fi
;;
esac
echo "$version: $fullVersion"
export fullVersion pipVersion setuptoolsVersion hasWindows
doc="$(jq -nc '
{
version: env.fullVersion,
variants: [
(
"bullseye",
empty
| ., "slim-" + .), # https://github.com/docker-library/ruby/pull/142#issuecomment-320012893
(
"3.21",
empty
| "alpine" + .),
if env.hasWindows != "" then
(
"ltsc2022",
empty
| "windows/windowsservercore-" + .)
else empty end
],
} + if env.setuptoolsVersion != "" then {
setuptools: {
version: env.setuptoolsVersion,
},
} else {} end
')"
if [ -n "${checksums["$fullVersion"]:-}" ]; then
doc="$(jq <<<"$doc" -c --argjson checksums "${checksums["$fullVersion"]}" '.checksums = $checksums')"
fi
json="$(jq <<<"$json" -c --argjson doc "$doc" '.[env.version] = $doc')"
done
jq <<<"$json" -S . > versions.json