#!/usr/bin/env bash
# Build the Mia TP4 production image (docker-images/mia-tp4, vendored from
# github.com/MiaAI-Lab/DeepSeek-v4.1-Flash-DGX-Sparks @ cad252b7d3
# (2026-09-25, the "production line" README rev)). The Dockerfile's fetch
# stage pulls the pinned third-party trees declared in runtime/sources.manifest
# (checks sha256) and applies the repo's own patches — GitHub + PyPI must be
# reachable from the build node.
#
# TAG is set by the sm121 launcher to the recipe's docker_image
# (manual: TAG=dsv41-4x-spark:mia-tp4 bash build.sh).
set -euo pipefail
cd "$(dirname "$0")"
TAG="${TAG:-dsv41-4x-spark:mia-tp4}"

ARGS=()
while IFS= read -r line; do
    case "$line" in ''|\#*) continue ;; esac
    key="${line%%=*}"; val="${line#*=}"
    val="${val%\"}"; val="${val#\"}"
    [ -n "$key" ] && ARGS+=(--build-arg "${key}=${val}")
done < versions.env

echo "=== Building ${TAG} (Dockerfile.canary-roce) ==="
# Persistent buildkit cache; the pinned fetch stage is content-addressed, so
# only the adapter/test layers re-run on a rebuild.
CACHE_DIR="${SM121_BUILDKIT_CACHE:-$HOME/.cache/sm121-buildkit}"
mkdir -p "${CACHE_DIR}"
docker buildx build "${ARGS[@]}" --cache-from "type=local,src=${CACHE_DIR}" \
    --cache-to "type=local,dest=${CACHE_DIR},mode=max" \
    --progress=plain --load -t "${TAG}" -f Dockerfile.canary-roce . 2>&1
echo "=== Done: ${TAG} ==="