install.sh

#!/usr/bin/env bash
# MacClean installer — copies macclean + avscan into ~/.local/bin and fixes PATH.
#   ./install.sh              tools only
#   ./install.sh --with-av    also install ClamAV (Homebrew) + fetch signatures
set -euo pipefail

SRC="$(cd "$(dirname "$0")" && pwd)"
BIN="$HOME/.local/bin"
WITH_AV=0
[ "${1:-}" = "--with-av" ] && WITH_AV=1

mkdir -p "$BIN"
install -m 0755 "$SRC/bin/macclean" "$BIN/macclean"
install -m 0755 "$SRC/bin/avscan"  "$BIN/avscan"
echo ">> installed macclean + avscan -> $BIN"

case ":$PATH:" in
  *":$BIN:"*) ;;
  *)
    added=0
    for rc in "$HOME/.zshrc" "$HOME/.bashrc" "$HOME/.bash_profile"; do
      [ -e "$rc" ] || continue
      grep -q '\.local/bin' "$rc" && continue
      printf '\nexport PATH="$HOME/.local/bin:$PATH"\n' >> "$rc"
      echo ">> added ~/.local/bin to PATH in $rc"
      added=1
    done
    [ "$added" -eq 0 ] && echo ">> add ~/.local/bin to your PATH manually"
    echo ">> open a new shell for PATH to take effect"
    ;;
esac

if [ "$WITH_AV" -eq 1 ]; then
  if ! command -v brew >/dev/null 2>&1; then
    echo "!! Homebrew not found — install it first: https://brew.sh" >&2
    exit 1
  fi
  brew list clamav >/dev/null 2>&1 || brew install clamav
  CONF="$(brew --prefix)/etc/clamav"
  if [ ! -f "$CONF/freshclam.conf" ]; then
    sed -e 's/^Example/#Example/' "$CONF/freshclam.conf.sample" > "$CONF/freshclam.conf"
    echo ">> wrote $CONF/freshclam.conf"
  fi
  mkdir -p "$(brew --prefix)/var/log"
  echo ">> fetching ClamAV signatures (first run downloads ~1 GB)..."
  freshclam || echo "!! freshclam reported an error; re-run 'freshclam' later"
  echo ">> ClamAV ready — try: macclean scan ~/Downloads"
else
  echo ">> for 'macclean scan', run: ./install.sh --with-av"
fi

echo ">> done. Try: macclean checkup"