/
remove.go
73 lines (62 loc) · 1.85 KB
/
remove.go
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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 snappy
import (
"strings"
"github.com/ubuntu-core/snappy/progress"
)
// RemoveFlags can be used to pass additional flags to the snap removal request
type RemoveFlags uint
const (
// DoRemoveGC will ensure that garbage collection is done, unless a
// version is specified.
DoRemoveGC RemoveFlags = 1 << iota
)
// Remove a part by a partSpec string, name[.origin][=version]
func Remove(partSpec string, flags RemoveFlags, meter progress.Meter) error {
var parts BySnapVersion
installed, err := NewLocalSnapRepository().Installed()
if err != nil {
return err
}
// Note that "=" is not legal in a snap name or a snap version
l := strings.Split(partSpec, "=")
if len(l) == 2 {
name := l[0]
version := l[1]
parts = FindSnapsByNameAndVersion(name, version, installed)
} else {
if (flags & DoRemoveGC) == 0 {
if part := ActiveSnapByName(partSpec); part != nil {
parts = append(parts, part)
}
} else {
parts = FindSnapsByName(partSpec, installed)
}
}
if len(parts) == 0 {
return ErrPackageNotFound
}
overlord := &Overlord{}
for _, part := range parts {
if err := overlord.Uninstall(part.(*SnapPart), meter); err != nil {
return err
}
}
return nil
}