github.com/meulengracht/snapd@v0.0.0-20210719210640-8bde69bcc84e/overlord/hookstate/ctlcmd/restart.go (about)

     1  // -*- Mode: Go; indent-tabs-mode: t -*-
     2  
     3  /*
     4   * Copyright (C) 2016-2017 Canonical Ltd
     5   *
     6   * This program is free software: you can redistribute it and/or modify
     7   * it under the terms of the GNU General Public License version 3 as
     8   * published by the Free Software Foundation.
     9   *
    10   * This program is distributed in the hope that it will be useful,
    11   * but WITHOUT ANY WARRANTY; without even the implied warranty of
    12   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    13   * GNU General Public License for more details.
    14   *
    15   * You should have received a copy of the GNU General Public License
    16   * along with this program.  If not, see <http://www.gnu.org/licenses/>.
    17   *
    18   */
    19  
    20  package ctlcmd
    21  
    22  import (
    23  	"github.com/snapcore/snapd/client"
    24  	"github.com/snapcore/snapd/i18n"
    25  	"github.com/snapcore/snapd/overlord/servicestate"
    26  )
    27  
    28  var (
    29  	shortRestartHelp = i18n.G("Restart services")
    30  	longRestartHelp  = i18n.G(`
    31  The restart command restarts the given services of the snap. If executed from the
    32  "configure" hook, the services will be restarted after the hook finishes.`)
    33  )
    34  
    35  func init() {
    36  	addCommand("restart", shortRestartHelp, longRestartHelp, func() command { return &restartCommand{} })
    37  }
    38  
    39  type restartCommand struct {
    40  	baseCommand
    41  	Positional struct {
    42  		ServiceNames []string `positional-arg-name:"<service>" required:"yes"`
    43  	} `positional-args:"yes" required:"yes"`
    44  	Reload bool `long:"reload" description:"Reload the given services if they support it (see man systemctl for details)"`
    45  }
    46  
    47  func (c *restartCommand) Execute(args []string) error {
    48  	inst := servicestate.Instruction{
    49  		Action: "restart",
    50  		Names:  c.Positional.ServiceNames,
    51  		RestartOptions: client.RestartOptions{
    52  			Reload: c.Reload,
    53  		},
    54  	}
    55  	return runServiceCommand(c.context(), &inst)
    56  }