#!/bin/sh

# Fails when a Python version pin drifts from .python-version.

set -eu

expected=$(cat .python-version)

dockerfile=$(sed -n 's/^ARG PYTHON_VERSION=//p' Dockerfile)

if [ "$dockerfile" != "$expected" ]; then

echo "Dockerfile pins Python $dockerfile, but .python-version is $expected" >&2

exit 1

fi