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

OUT_DIR=$(cd "$(dirname "$0")" && pwd)
OUT_FILE="$OUT_DIR/ENVIRONMENT.txt"

{
  echo "== Datetime =="; date -Iseconds || date; echo
  echo "== OS =="; uname -a || true; lsb_release -a 2>/dev/null || true; sw_vers 2>/dev/null || true; systeminfo 2>/dev/null | head -n 30 || true; echo
  echo "== CPU =="; lscpu 2>/dev/null || sysctl -a 2>/dev/null | grep machdep.cpu || true; echo
  echo "== Rust toolchain =="; rustc --version 2>/dev/null || true; cargo --version 2>/dev/null || true; echo
  echo "== Git =="; git rev-parse HEAD 2>/dev/null || true; echo
  echo "== Cranelift/JIT features =="; rg -n "cranelift|jit" -S ../../../../ -g '!target' 2>/dev/null || true
} > "$OUT_FILE"

echo "[DONE] Wrote $OUT_FILE"