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// -*- Mode: Go; indent-tabs-mode: t -*-
/*
* Copyright (C) 2014-2015 Canonical Ltd
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 3 as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
package main
import (
"fmt"
"os"
"os/exec"
"strings"
"launchpad.net/snappy/i18n"
"launchpad.net/snappy/logger"
"launchpad.net/snappy/progress"
"launchpad.net/snappy/snappy"
)
type cmdUpdate struct {
DisableGC bool `long:"no-gc"`
AutoReboot bool `long:"automatic-reboot"`
}
func init() {
arg, err := parser.AddCommand("update",
i18n.G("Update all installed parts"),
i18n.G("Ensures system is running with latest parts"),
&cmdUpdate{})
if err != nil {
logger.Panicf("Unable to update: %v", err)
}
addOptionDescription(arg, "no-gc", i18n.G("Do not clean up old versions of the package."))
addOptionDescription(arg, "automatic-reboot", i18n.G("Reboot if necessary to be on the latest running system."))
}
const (
shutdownCmd = "/sbin/shutdown"
shutdownTimeout = "+10"
)
var shutdownMsg = i18n.G("snappy autopilot triggered a reboot to boot into an up to date system -- temprorarily disable the reboot by running 'sudo shutdown -c'")
func (x *cmdUpdate) Execute(args []string) (err error) {
return withMutex(x.doUpdate)
}
func (x *cmdUpdate) doUpdate() error {
// FIXME: handle (more?) args
flags := snappy.DoInstallGC
if x.DisableGC {
flags = 0
}
updates, err := snappy.Update(flags, progress.MakeProgressBar())
if err != nil {
return err
}
if len(updates) > 0 {
showVerboseList(updates, os.Stdout)
}
if x.AutoReboot {
installed, err := snappy.ListInstalled()
if err != nil {
return err
}
var rebootTriggers []string
for _, part := range installed {
if part.NeedsReboot() {
rebootTriggers = append(rebootTriggers, part.Name())
}
}
if len(rebootTriggers) != 0 {
// TRANSLATORS: the %s shows a comma separated list
// of package names
fmt.Printf(i18n.G("Rebooting to satisfy updates for %s\n"), strings.Join(rebootTriggers, ", "))
cmd := exec.Command(shutdownCmd, shutdownTimeout, "-r", shutdownMsg)
if out, err := cmd.CombinedOutput(); err != nil {
return fmt.Errorf("failed to auto reboot: %s", out)
}
}
}
return nil
}
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