#!/usr/bin/env bash
set -euo pipefail

rm -r stage0 || true
mkdir -p stage0/stdlib/
cat <<EOF >> stage0/stdlib/CMakeLists.txt
set(CMAKE_C_COMPILER_LAUNCHER "env;LEAN_CXX=\${CMAKE_CXX_COMPILER_LAUNCHER} \${CMAKE_CXX_COMPILER}")
set(CMAKE_C_COMPILER "\${CMAKE_BINARY_DIR}/bin/leanc")
EOF
for pkg in Init Std Lean; do
    # ensure deterministic ordering
    c_files="$pkg.c $(cd src; find $pkg -name '*.lean' | sed s/.lean/.c/ | LC_ALL=C sort | tr '\n' ' ')"
    for f in $c_files; do mkdir -p $(dirname stage0/stdlib/$f); cp ${CP_PARAMS:-} $CSRCS/$f stage0/stdlib/$f; done
    cat <<EOF >> stage0/stdlib/CMakeLists.txt
add_library ($pkg STATIC $c_files)
set_target_properties($pkg PROPERTIES ARCHIVE_OUTPUT_DIRECTORY "\${CMAKE_BINARY_DIR}/lib/lean")
EOF
done
# don't copy untracked crap
git ls-files -z src | xargs -0 -I '{}' bash -c 'mkdir -p `dirname stage0/{}` && cp {} stage0/{}'
git add stage0