/
unset.go
74 lines (57 loc) · 1.78 KB
/
unset.go
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// -*- Mode: Go; indent-tabs-mode: t -*-
/*
* Copyright (C) 2019 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 ctlcmd
import (
"fmt"
"github.com/snapcore/snapd/i18n"
"github.com/snapcore/snapd/overlord/configstate"
)
type unsetCommand struct {
baseCommand
Positional struct {
ConfKeys []string
} `positional-args:"yes"`
}
var shortUnsetHelp = i18n.G("Remove configuration options")
var longUnsetHelp = i18n.G(`
The unset command removes the provided configuration options as requested.
$ snapctl unset name address
All configuration changes are persisted at once, and only after the
snap's configuration hook returns successfully.
Nested values may be removed via a dotted path:
$ snapctl unset user.name
`)
func init() {
addCommand("unset", shortUnsetHelp, longUnsetHelp, func() command { return &unsetCommand{} })
}
func (s *unsetCommand) Execute(args []string) error {
if len(s.Positional.ConfKeys) == 0 {
return fmt.Errorf(i18n.G("unset which option?"))
}
context, err := s.ensureContext()
if err != nil {
return err
}
context.Lock()
tr := configstate.ContextTransaction(context)
context.Unlock()
for _, confKey := range s.Positional.ConfKeys {
tr.Set(context.InstanceName(), confKey, nil)
}
return nil
}