#!/bin/sh

# Abort if anything goes wrong.
set -euo pipefail

# Always map the Docker tag `latest` to stable Rust.
if [ "$DOCKER_TAG" == "latest" ]; then
  TOOLCHAIN=stable
else
  TOOLCHAIN="$DOCKER_TAG"
fi

# Run the build.
docker build --build-arg TOOLCHAIN="$TOOLCHAIN" -t "$IMAGE_NAME" .