addcopypathscript

#!/usr/bin/env bash

set -euo pipefail

# Install required packages, skipping any already present.
apt-get install -y xclip python3-nautilus > /dev/null

# When run via sudo, write into the invoking user's home, not root's.
if [[ -n "${SUDO_USER:-}" ]]; then
    user_home=$(getent passwd "$SUDO_USER" | cut -d: -f6)
else
    user_home="$HOME"
fi

# Remove the older Scripts-submenu version if present.
old_script="$user_home/.local/share/nautilus/scripts/Copy path"
if [[ -f "$old_script" ]]; then
    rm "$old_script"
    printf 'Removed old scripts-submenu version.\n'
fi

ext_dir="$user_home/.local/share/nautilus-python/extensions"
mkdir -p "$ext_dir"

ext_file="$ext_dir/copy-path.py"

new_content=$(cat <<'PYEXT'
from gi.repository import GObject, Nautilus
import subprocess
import os

class CopyPathExtension(GObject.GObject, Nautilus.MenuProvider):
    def get_file_items(self, files):
        if not files:
            return []
        item = Nautilus.MenuItem(name='CopyPath::copy', label='Copy path')
        item.connect('activate', lambda _m: self._copy(files[0]))
        return [item]

    def _copy(self, nautilus_file):
        path = nautilus_file.get_location().get_path()
        if not path:
            return
        session = os.environ.get('XDG_SESSION_TYPE', '')
        if session == 'wayland' and subprocess.run(['which', 'wl-copy'], capture_output=True).returncode == 0:
            subprocess.run(['wl-copy'], input=path.encode(), check=True)
        else:
            subprocess.run(['xclip', '-selection', 'clipboard'], input=path.encode(), check=True)
PYEXT
)

if [[ -f "$ext_file" ]] && [[ "$(cat "$ext_file")" == "$new_content" ]]; then
    printf 'Already up to date: %s\n' "$ext_file"
else
    printf '%s\n' "$new_content" > "$ext_file"
    printf 'Installed: %s\n' "$ext_file"
fi

printf 'Restart Nautilus to activate: nautilus -q && nautilus\n'