feat(server,client): remote install mode, install survives missing systemd

backend/internal/server/install.sh

@@ -1,6 +1,10 @@
 #!/bin/sh
 set -eu
 
+url="{{URL}}"
+code="{{CODE}}"
+mode="{{MODE}}"
+
 os=$(uname -s | tr '[:upper:]' '[:lower:]')
 arch=$(uname -m)
 case "$arch" in
@@ -11,12 +15,26 @@ esac
 
 bin="$HOME/.local/bin"
 mkdir -p "$bin"
-curl -fsSL "{{URL}}/dl/lodge-$os-$arch" -o "$bin/lodge.new"
+curl -fsSL "$url/dl/lodge-$os-$arch" -o "$bin/lodge.new"
 chmod +x "$bin/lodge.new"
 mv "$bin/lodge.new" "$bin/lodge"
 
-"$bin/lodge" login "{{URL}}" "{{CODE}}"
-"$bin/lodge" install
+if [ "$mode" = login ]; then
+	"$bin/lodge" login "$url" "$code"
+	"$bin/lodge" install
+else
+	plist="$HOME/Library/LaunchAgents/com.kotikot.lodge.plist"
+	unit="$HOME/.config/systemd/user/lodge.service"
+	restarted=yes
+	if [ -f "$plist" ]; then
+		launchctl kickstart -k "gui/$(id -u)/com.kotikot.lodge" || restarted=no
+	elif [ -f "$unit" ]; then
+		systemctl --user restart lodge.service || restarted=no
+	fi
+	[ "$restarted" = yes ] || echo "lodge: restart the running daemon so it runs the new binary" >&2
+	(cd / && "$bin/lodge" remote "$url" "$code")
+	[ -f "$plist" ] || [ -f "$unit" ] || "$bin/lodge" install
+fi
 
 case ":$PATH:" in
 	*":$bin:"*) ;;