|  | // Copyright 2011 The Go Authors. All rights reserved. | 
|  | // Use of this source code is governed by a BSD-style | 
|  | // license that can be found in the LICENSE file. | 
|  |  | 
|  | package user | 
|  |  | 
|  | // Current returns the current user. | 
|  | func Current() (*User, error) { | 
|  | return current() | 
|  | } | 
|  |  | 
|  | // Lookup looks up a user by username. If the user cannot be found, the | 
|  | // returned error is of type UnknownUserError. | 
|  | func Lookup(username string) (*User, error) { | 
|  | return lookupUser(username) | 
|  | } | 
|  |  | 
|  | // LookupId looks up a user by userid. If the user cannot be found, the | 
|  | // returned error is of type UnknownUserIdError. | 
|  | func LookupId(uid string) (*User, error) { | 
|  | return lookupUserId(uid) | 
|  | } | 
|  |  | 
|  | // LookupGroup looks up a group by name. If the group cannot be found, the | 
|  | // returned error is of type UnknownGroupError. | 
|  | func LookupGroup(name string) (*Group, error) { | 
|  | return lookupGroup(name) | 
|  | } | 
|  |  | 
|  | // LookupGroupId looks up a group by groupid. If the group cannot be found, the | 
|  | // returned error is of type UnknownGroupIdError. | 
|  | func LookupGroupId(gid string) (*Group, error) { | 
|  | return lookupGroupId(gid) | 
|  | } | 
|  |  | 
|  | // GroupIds returns the list of group IDs that the user is a member of. | 
|  | func (u *User) GroupIds() ([]string, error) { | 
|  | return listGroups(u) | 
|  | } |