# Upgrade a package
class CommandUpgrade
	super Command

	redef fun name do return "upgrade"
	redef fun usage do return "nitpm upgrade <package>"
	redef fun description do return "Upgrade a package"

	redef fun apply(args)
	do
		if args.length != 1 then
			print_local_help
			exit 1
		end

		var name = args.first
		var target_dir = nitpm_lib_dir / name

		if not target_dir.file_exists or not target_dir.to_path.is_dir then
			print_error "Package not found"
			exit 1
		end

		check_git

		var cmd = "cd {target_dir.escape_to_sh}; git pull"
		if verbose then print "+ {cmd}"

		var proc = new Process("sh", "-c", cmd)
		proc.wait

		if proc.status != 0 then
			print_error "Upgrade failed"
			exit 1
		end
	end
end