forked from asteris-llc/converge
/
group_linux.go
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/
group_linux.go
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// Copyright © 2016 Asteris, LLC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// +build linux
package group
import (
"fmt"
"os/exec"
"os/user"
)
// System implements SystemUtils
type System struct{}
// AddGroup adds a group
func (s *System) AddGroup(groupName, groupID string) error {
args := []string{groupName}
if groupID != "" {
args = append(args, "-g", groupID)
}
cmd := exec.Command("groupadd", args...)
err := cmd.Run()
if err != nil {
return fmt.Errorf("groupadd: %s", err)
}
return nil
}
// DelGroup deletes a group
func (s *System) DelGroup(groupName string) error {
cmd := exec.Command("groupdel", groupName)
err := cmd.Run()
if err != nil {
return fmt.Errorf("groupdel: %s", err)
}
return nil
}
// ModGroup modifies a group
func (s *System) ModGroup(groupName string, options *ModGroupOptions) error {
args := []string{groupName}
if options.GID != "" {
args = append(args, "-g", options.GID)
}
if options.NewName != "" {
args = append(args, "-n", options.NewName)
}
cmd := exec.Command("groupmod", args...)
err := cmd.Run()
if err != nil {
return fmt.Errorf("groupmod: %s", err)
}
return nil
}
// LookupGroup looks up a group by name
// If the group cannot be found an error is returned
func (s *System) LookupGroup(groupName string) (*user.Group, error) {
return user.LookupGroup(groupName)
}
// LookupGroupID looks up a group by gid
// If the group cannot be found an error is returned
func (s *System) LookupGroupID(groupID string) (*user.Group, error) {
return user.LookupGroupId(groupID)
}