4f4a855d82
Reviewed-on: https://go-review.googlesource.com/c/158019 gotools/: * Makefile.am (go_cmd_vet_files): Update for Go1.12beta2 release. (GOTOOLS_TEST_TIMEOUT): Increase to 600. (check-runtime): Export LD_LIBRARY_PATH before computing GOARCH and GOOS. (check-vet): Copy golang.org/x/tools into check-vet-dir. * Makefile.in: Regenerate. gcc/testsuite/: * go.go-torture/execute/names-1.go: Stop using debug/xcoff, which is no longer externally visible. From-SVN: r268084
64 lines
1.7 KiB
Go
64 lines
1.7 KiB
Go
// 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
|
|
|
|
import "sync"
|
|
|
|
// Current returns the current user.
|
|
//
|
|
// The first call will cache the current user information.
|
|
// Subsequent calls will return the cached value and will not reflect
|
|
// changes to the current user.
|
|
func Current() (*User, error) {
|
|
cache.Do(func() { cache.u, cache.err = current() })
|
|
if cache.err != nil {
|
|
return nil, cache.err
|
|
}
|
|
u := *cache.u // copy
|
|
return &u, nil
|
|
}
|
|
|
|
// cache of the current user
|
|
var cache struct {
|
|
sync.Once
|
|
u *User
|
|
err error
|
|
}
|
|
|
|
// 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) {
|
|
if u, err := Current(); err == nil && u.Username == username {
|
|
return u, err
|
|
}
|
|
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) {
|
|
if u, err := Current(); err == nil && u.Uid == uid {
|
|
return u, err
|
|
}
|
|
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)
|
|
}
|