install.sh

#!/usr/bin/env bash
# Installer for Aura — Lenovo LOQ keyboard RGB backlight control (GTK4 GUI + CLI).
#
# This is the "no .deb" install path. It copies the app to /opt/aura, wires up
# the CLI, the udev rule, the desktop entry + icons, and the systemd units.
#
#   sudo ./install.sh
#
# Idempotent: safe to re-run to upgrade an existing install.
set -euo pipefail

PREFIX=/opt/aura
BIN=/usr/local/bin/aura
SRC="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"

APPID=dev.lacina.Aura
DESKTOP_DIR=/usr/share/applications
ICON_ROOT=/usr/share/icons/hicolor
METAINFO_DIR=/usr/share/metainfo

if [[ $EUID -ne 0 ]]; then
  echo "Please run as root:  sudo ./install.sh" >&2
  exit 1
fi

# ---------------------------------------------------------------------------
echo "==> Installing application to $PREFIX"
mkdir -p "$PREFIX"
# Refresh the payload (remove stale modules first so upgrades are clean).
rm -rf "$PREFIX/aura" "$PREFIX/bin"
cp -r "$SRC/aura" "$SRC/bin" "$PREFIX/"
# Drop any bytecode carried over from the source tree.
rm -rf "$PREFIX/aura/__pycache__"
chmod +x "$PREFIX/bin/aura" "$PREFIX/bin/aura-gui"
ln -sf "$PREFIX/bin/aura" "$BIN"

# ---------------------------------------------------------------------------
echo "==> Installing udev rule"
install -m 0644 "$SRC/udev/99-aura-loq.rules" /etc/udev/rules.d/99-aura-loq.rules
udevadm control --reload-rules || true
udevadm trigger --subsystem-match=hidraw || true

# ---------------------------------------------------------------------------
echo "==> Installing desktop entry, icons and AppStream metadata"
install -D -m 0644 "$SRC/data/$APPID.desktop" "$DESKTOP_DIR/$APPID.desktop"
install -D -m 0644 "$SRC/data/icons/hicolor/scalable/apps/$APPID.svg" \
        "$ICON_ROOT/scalable/apps/$APPID.svg"
install -D -m 0644 "$SRC/data/icons/hicolor/symbolic/apps/$APPID-symbolic.svg" \
        "$ICON_ROOT/symbolic/apps/$APPID-symbolic.svg"
install -D -m 0644 "$SRC/data/$APPID.metainfo.xml" "$METAINFO_DIR/$APPID.metainfo.xml"

# Refresh the desktop database and icon cache (best effort).
update-desktop-database "$DESKTOP_DIR" >/dev/null 2>&1 || true
gtk-update-icon-cache -f -t "$ICON_ROOT" >/dev/null 2>&1 || true

# ---------------------------------------------------------------------------
echo "==> Installing systemd units"
# System service: static boot default (optional). Enabled for backwards compat.
install -m 0644 "$SRC/systemd/aura.service" /etc/systemd/system/aura.service
# User service: the Ctrl+Space cycle. Runs as the logged-in user, reads
# ~/.config/aura/profile.json. Installed but NOT enabled as root — the user
# enables it (or the GUI toggle does).
install -D -m 0644 "$SRC/systemd/aura-cycle.service" \
        /etc/systemd/user/aura-cycle.service
systemctl daemon-reload || true

# ---------------------------------------------------------------------------
echo "==> Seeding system config (/etc/aura)"
mkdir -p /etc/aura
if [[ ! -f /etc/aura/config.json ]]; then
  cat > /etc/aura/config.json <<'JSON'
{
  "mode": "solid",
  "color": "#ffffff",
  "brightness": 100,
  "speed": 1.0
}
JSON
fi
if [[ ! -f /etc/aura/cycle.conf && -f "$SRC/config/cycle.conf" ]]; then
  install -m 0644 "$SRC/config/cycle.conf" /etc/aura/cycle.conf
fi

# ---------------------------------------------------------------------------
# Let the invoking user reach /dev/hidraw and /dev/input without sudo.
TARGET_USER="${SUDO_USER:-}"
if [[ -n "$TARGET_USER" && "$TARGET_USER" != "root" ]]; then
  echo "==> Adding $TARGET_USER to the 'input' group"
  usermod -aG input "$TARGET_USER" || true
fi

# NB: the static boot default service (aura.service) is intentionally left
# DISABLED. It re-applies a fixed colour every 30 s, which fights the Ctrl+Space
# scene cycle. Use the cycle (user service) as the default; enable aura.service
# manually only if you want a single fixed colour instead of the cycle.
systemctl disable --now aura.service >/dev/null 2>&1 || true

# ---------------------------------------------------------------------------
cat <<EOF

Aura is installed.

Launch the app:
  • From your app menu: search for "Aura"
  • Or from a terminal:  aura gui
  • CLI is available as: aura status / aura color purple -b 80 / aura off

Start-up backlight:
  The Ctrl+Space scene cycle runs as a *user* service. Enable it (as your
  normal user, NOT root) so it starts at every login:

      systemctl --user enable --now aura-cycle

  The GUI's "Spustit po startu" toggle does the same thing for you.

  A simple static boot default is provided by the system service 'aura.service'
  (already enabled). If you use the cycle instead, disable it:

      sudo systemctl disable --now aura.service

Note: log out and back in once so your new 'input' group membership applies.
EOF