#!/bin/sh
# Fetch the VT1200 reverse-engineering tree at the pinned commit.
#
# The compiler design uses this tree as its ABI/oracle/loader source:
#   harness/c-hello   TI C -> COFF -> real unit
#   dwt/loader        COFF loader and hostload
#   dwt/gui           xhello.asm, the Xlib call sequence
#   tools/as34        native assembler/linker
#   tools/smart34010  dis34
#   tools/tms34010-sdk TI SDKs
#   reference, docs   manuals and notes
#
# It is NOT vendored into the compiler repo; this script is the reproducible
# way to materialise it.  Override the destination with $1.
set -eu

DEST=${1:-vendor/vt1200}
REPO=https://git.k-space.ee/arti/vt1200
COMMIT=17dfd24340fe3346433f90457cb48cb8786dff39

if [ ! -d "$DEST/.git" ]; then
    mkdir -p "$(dirname "$DEST")"
    git clone --filter=blob:none --no-checkout "$REPO" "$DEST"
fi

cd "$DEST"
git fetch --depth 1 origin "$COMMIT" 2>/dev/null || true
git checkout --detach "$COMMIT"
git sparse-checkout init --cone
git sparse-checkout set docs reference tools harness dwt
printf '%s\n' "$COMMIT" > VENDORED_AT

echo "vt1200 tree at $DEST, commit $COMMIT"
du -sh .