Adding modding folder with a hacked build.

modding/hacked-build-image.sh

@@ -0,0 +1,35 @@
+#!/usr/bin/env bash
+# Builds the hacked build-image (hacked-build-image/Dockerfile) locally, tagged with
+# hacked-build-image/VERSION and :latest. Does not push - test it with
+# ./hacked-build-run-image.sh first, then publish with
+# ./hacked-build-upload-image.sh.
+set -euo pipefail
+
+cd "$(dirname "${BASH_SOURCE[0]}")"
+ROOT="$(pwd)"
+
+fail() { echo "PREFLIGHT FAIL: $*" >&2; exit 1; }
+
+command -v docker >/dev/null 2>&1 \
+    || fail "docker not found in PATH"
+
+IMAGE="${HACKED_REGISTRY_IMAGE:-questshock/hacked-builder}"
+if [ -f "$ROOT/../registry.env" ]; then
+    # shellcheck disable=SC1091
+    source "$ROOT/../registry.env"
+    IMAGE="${HACKED_REGISTRY_IMAGE:-$IMAGE}"
+fi
+
+VERSION="$(<"$ROOT/hacked-build-image/VERSION")"
+[ -n "$VERSION" ] || fail "hacked-build-image/VERSION is empty"
+
+echo "== Building $IMAGE:$VERSION =="
+docker build \
+    -f "$ROOT/hacked-build-image/Dockerfile" \
+    -t "$IMAGE:$VERSION" \
+    -t "$IMAGE:latest" \
+    "$ROOT"
+
+echo "== Done =="
+echo "Image: $IMAGE:$VERSION (and :latest)"
+echo "Test it with ./hacked-build-run-image.sh, then publish with ./hacked-build-upload-image.sh"