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Code Issues Packages Projects Releases Wiki Activity

Vendor cleanup

Browse Source 
Signed-off-by: Madhu Rajanna <mrajanna@redhat.com>
This commit is contained in:
Madhu Rajanna
2019-01-16 18:11:54 +05:30
parent 661818bd79
commit 0f836c62fa
16816 changed files with 20 additions and 4611100 deletions
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9
vendor/k8s.io/utils/.travis.yml generated vendored
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language: go
dist: xenial
go:
- 1.9.x
- 1.10.x
- 1.11.x
go_import_path: k8s.io/utils
script:
- make verify

9
vendor/k8s.io/utils/CONTRIBUTING.md generated vendored
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# Contributing
Thanks for taking the time to join our community and start contributing!
The [Contributor Guide](https://github.com/kubernetes/community/blob/master/contributors/guide/README.md)
provides detailed instructions on how to get your ideas and bug fixes seen and accepted.
Please remember to sign the [CNCF CLA](https://github.com/kubernetes/community/blob/master/CLA.md) and
read and observe the [Code of Conduct](https://github.com/cncf/foundation/blob/master/code-of-conduct.md).

31
vendor/k8s.io/utils/HOWTOMOVE.md generated vendored
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# How to move a utility pkg from other kubernetes repos
It has 2 steps to move a pkg from other Kubernetes repos to `k8s.io/utils` repo:
- copy the pkg to `k8s.io/utils` repo
- update the import paths and `vendor/` in the repos that refer this pkg
## Copy the pkg to `k8s.io/utils` repo
Copying should preserve all the git history associated with it.
[Here](http://gbayer.com/development/moving-files-from-one-git-repository-to-another-preserving-history/) is a working approach.
Note: You may need to use `--allow-unrelated-histories` if you get error when running `git pull` following the post above.
Then, you may need to restructure the package to make sure it has the following structure.
.
├── doc.go # Description for this package
├── <utilname1>.go # utility go file
├── <utilname>_test.go # go unit tests
└── testing # All the testing framework
└── fake_<utilname>.go # Testing framework go file
[#5](https://github.com/kubernetes/utils/pull/5) is an example for this step.
## Update the repos that refer the pkg
You should update the import paths.
Then follow [this doc](https://github.com/kubernetes/community/blob/master/contributors/devel/godep.md) to update `vendor/` and `Godeps/`.
You may want to run `make bazel-test` to make sure all new references work.
[kubernetes/kubernetes#49234](https://github.com/kubernetes/kubernetes/pull/49234) is an example for this step.

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vendor/k8s.io/utils/Makefile generated vendored
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# Copyright 2018 The Kubernetes Authors.
#
# 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.
.PHONY: verify
verify: depend verify-fmt verify-lint vet
go test -v -race ./...
.PHONY: depend
depend:
go get -t -v ./...
.PHONY: verify-fmt
verify-fmt:
./hack/verify-gofmt.sh
.PHONY: verify-lint
verify-lint:
./hack/verify-golint.sh
.PHONY: vet
vet:
go tool vet .
.PHONY: update-fmt
update-fmt:
gofmt -s -w .

18
vendor/k8s.io/utils/OWNERS generated vendored
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# See the OWNERS docs at https://go.k8s.io/owners
approvers:
- apelisse
- dashpole
- deads2k
- lavalamp
- mengqiy
- thockin
reviewers:
- apelisse
- dashpole
- deads2k
- lavalamp
- mengqiy
- thockin
- andrewsykim
- cheftako
- mcrute

69
vendor/k8s.io/utils/README.md generated vendored
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# Utils
[![Build Status]](https://travis-ci.org/kubernetes/utils) [![GoDoc](https://godoc.org/k8s.io/utils?status.svg)](https://godoc.org/k8s.io/utils)
A set of Go libraries that provide low-level,
kubernetes-independent packages supplementing the [Go
standard libs].
## Purpose
As Kubernetes grows and spins functionality out of its
[core] and into cooperating repositories like
[apiserver], [kubectl], [kubeadm], etc., the need
arises for leaf repositories to house shared code and
avoid cycles in repository relationships.
This repository is intended to hold shared utilities
with no Kubernetes dependence that may be of interest
to any Go project. See these [instructions for moving]
an existing package to this repository.
## Criteria for adding code here
- Used by multiple Kubernetes repositories.
- Full unit test coverage.
- Go tools compliant (`go get`, `go test`, etc.).
- Complex enough to be worth vendoring, rather than copying.
- Stable, or backward compatible, API.
- _No dependence on any Kubernetes repository_.
## Libraries
- [Exec](/exec) provides an interface for `os/exec`. It makes it easier
to mock and replace in tests, especially with
the [FakeExec](exec/testing/fake_exec.go) struct.
- [Temp](/temp) provides an interface to create temporary directories. It also
provides a [FakeDir](temp/temptest) implementation to replace in tests.
- [Clock](/clock) provides an interface for time-based operations. It allows
mocking time for testing.
- [Pointers](/pointers) provides some functions for pointer-based operations.
- [Io](/io) provides interfaces for working with file IO. Currently it provides
functionality for consistently reading a file.
- [NSEnter](/nsenter) provies interfaces for executing and interacting with
processes running within a namespace.
[Build Status]: https://travis-ci.org/kubernetes/utils.svg?branch=master
[Go standard libs]: https://golang.org/pkg/#stdlib
[api]: https://github.com/kubernetes/api
[apiserver]: https://github.com/kubernetes/apiserver
[core]: https://github.com/kubernetes/kubernetes
[ingress]: https://github.com/kubernetes/ingress
[kubeadm]: https://github.com/kubernetes/kubeadm
[kubectl]: https://github.com/kubernetes/kubectl
[instructions for moving]: ./HOWTOMOVE.md
## Contributing
Please see [CONTRIBUTING.md](CONTRIBUTING.md) for instructions on how to contribute.

13
vendor/k8s.io/utils/SECURITY_CONTACTS generated vendored
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# Defined below are the security contacts for this repo.
#
# They are the contact point for the Product Security Team to reach out
# to for triaging and handling of incoming issues.
#
# The below names agree to abide by the
# [Embargo Policy](https://github.com/kubernetes/sig-release/blob/master/security-release-process-documentation/security-release-process.md#embargo-policy)
# and will be removed and replaced if they violate that agreement.
#
# DO NOT REPORT SECURITY VULNERABILITIES DIRECTLY TO THESE NAMES, FOLLOW THE
# INSTRUCTIONS AT https://kubernetes.io/security/
liggitt

97
vendor/k8s.io/utils/clock/clock.go generated vendored
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/*
Copyright 2014 The Kubernetes Authors.
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.
*/
package clock
import "time"
// Clock allows for injecting fake or real clocks into code that
// needs to do arbitrary things based on time.
type Clock interface {
Now() time.Time
Since(time.Time) time.Duration
After(d time.Duration) <-chan time.Time
NewTimer(d time.Duration) Timer
Sleep(d time.Duration)
Tick(d time.Duration) <-chan time.Time
}
var _ = Clock(RealClock{})
// RealClock really calls time.Now()
type RealClock struct{}
// Now returns the current time.
func (RealClock) Now() time.Time {
return time.Now()
}
// Since returns time since the specified timestamp.
func (RealClock) Since(ts time.Time) time.Duration {
return time.Since(ts)
}
// After is the same as time.After(d).
func (RealClock) After(d time.Duration) <-chan time.Time {
return time.After(d)
}
// NewTimer is the same as time.NewTimer(d)
func (RealClock) NewTimer(d time.Duration) Timer {
return &realTimer{
timer: time.NewTimer(d),
}
}
// Tick is the same as time.Tick(d)
func (RealClock) Tick(d time.Duration) <-chan time.Time {
return time.Tick(d)
}
// Sleep is the same as time.Sleep(d)
func (RealClock) Sleep(d time.Duration) {
time.Sleep(d)
}
// Timer allows for injecting fake or real timers into code that
// needs to do arbitrary things based on time.
type Timer interface {
C() <-chan time.Time
Stop() bool
Reset(d time.Duration) bool
}
var _ = Timer(&realTimer{})
// realTimer is backed by an actual time.Timer.
type realTimer struct {
timer *time.Timer
}
// C returns the underlying timer's channel.
func (r *realTimer) C() <-chan time.Time {
return r.timer.C
}
// Stop calls Stop() on the underlying timer.
func (r *realTimer) Stop() bool {
return r.timer.Stop()
}
// Reset calls Reset() on the underlying timer.
func (r *realTimer) Reset(d time.Duration) bool {
return r.timer.Reset(d)
}

274
vendor/k8s.io/utils/clock/testing/fake_clock.go generated vendored
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/*
Copyright 2014 The Kubernetes Authors.
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.
*/
package testing
import (
"sync"
"time"
"k8s.io/utils/clock"
)
var (
_ = clock.Clock(&FakeClock{})
_ = clock.Clock(&IntervalClock{})
)
// FakeClock implements clock.Clock, but returns an arbitrary time.
type FakeClock struct {
lock sync.RWMutex
time time.Time
// waiters are waiting for the fake time to pass their specified time
waiters []*fakeClockWaiter
}
type fakeClockWaiter struct {
targetTime time.Time
stepInterval time.Duration
skipIfBlocked bool
destChan chan time.Time
fired bool
}
// NewFakeClock constructs a fake clock set to the provided time.
func NewFakeClock(t time.Time) *FakeClock {
return &FakeClock{
time: t,
}
}
// Now returns f's time.
func (f *FakeClock) Now() time.Time {
f.lock.RLock()
defer f.lock.RUnlock()
return f.time
}
// Since returns time since the time in f.
func (f *FakeClock) Since(ts time.Time) time.Duration {
f.lock.RLock()
defer f.lock.RUnlock()
return f.time.Sub(ts)
}
// After is the fake version of time.After(d).
func (f *FakeClock) After(d time.Duration) <-chan time.Time {
f.lock.Lock()
defer f.lock.Unlock()
stopTime := f.time.Add(d)
ch := make(chan time.Time, 1) // Don't block!
f.waiters = append(f.waiters, &fakeClockWaiter{
targetTime: stopTime,
destChan: ch,
})
return ch
}
// NewTimer constructs a fake timer, akin to time.NewTimer(d).
func (f *FakeClock) NewTimer(d time.Duration) clock.Timer {
f.lock.Lock()
defer f.lock.Unlock()
stopTime := f.time.Add(d)
ch := make(chan time.Time, 1) // Don't block!
timer := &fakeTimer{
fakeClock: f,
waiter: fakeClockWaiter{
targetTime: stopTime,
destChan: ch,
},
}
f.waiters = append(f.waiters, &timer.waiter)
return timer
}
// Tick constructs a fake ticker, akin to time.Tick
func (f *FakeClock) Tick(d time.Duration) <-chan time.Time {
if d <= 0 {
return nil
}
f.lock.Lock()
defer f.lock.Unlock()
tickTime := f.time.Add(d)
ch := make(chan time.Time, 1) // hold one tick
f.waiters = append(f.waiters, &fakeClockWaiter{
targetTime: tickTime,
stepInterval: d,
skipIfBlocked: true,
destChan: ch,
})
return ch
}
// Step moves the clock by Duration and notifies anyone that's called After,
// Tick, or NewTimer.
func (f *FakeClock) Step(d time.Duration) {
f.lock.Lock()
defer f.lock.Unlock()
f.setTimeLocked(f.time.Add(d))
}
// SetTime sets the time.
func (f *FakeClock) SetTime(t time.Time) {
f.lock.Lock()
defer f.lock.Unlock()
f.setTimeLocked(t)
}
// Actually changes the time and checks any waiters. f must be write-locked.
func (f *FakeClock) setTimeLocked(t time.Time) {
f.time = t
newWaiters := make([]*fakeClockWaiter, 0, len(f.waiters))
for i := range f.waiters {
w := f.waiters[i]
if !w.targetTime.After(t) {
if w.skipIfBlocked {
select {
case w.destChan <- t:
w.fired = true
default:
}
} else {
w.destChan <- t
w.fired = true
}
if w.stepInterval > 0 {
for !w.targetTime.After(t) {
w.targetTime = w.targetTime.Add(w.stepInterval)
}
newWaiters = append(newWaiters, w)
}
} else {
newWaiters = append(newWaiters, f.waiters[i])
}
}
f.waiters = newWaiters
}
// HasWaiters returns true if After has been called on f but not yet satisfied (so you can
// write race-free tests).
func (f *FakeClock) HasWaiters() bool {
f.lock.RLock()
defer f.lock.RUnlock()
return len(f.waiters) > 0
}
// Sleep is akin to time.Sleep
func (f *FakeClock) Sleep(d time.Duration) {
f.Step(d)
}
// IntervalClock implements clock.Clock, but each invocation of Now steps the clock forward the specified duration
type IntervalClock struct {
Time time.Time
Duration time.Duration
}
// Now returns i's time.
func (i *IntervalClock) Now() time.Time {
i.Time = i.Time.Add(i.Duration)
return i.Time
}
// Since returns time since the time in i.
func (i *IntervalClock) Since(ts time.Time) time.Duration {
return i.Time.Sub(ts)
}
// After is unimplemented, will panic.
// TODO: make interval clock use FakeClock so this can be implemented.
func (*IntervalClock) After(d time.Duration) <-chan time.Time {
panic("IntervalClock doesn't implement After")
}
// NewTimer is unimplemented, will panic.
// TODO: make interval clock use FakeClock so this can be implemented.
func (*IntervalClock) NewTimer(d time.Duration) clock.Timer {
panic("IntervalClock doesn't implement NewTimer")
}
// Tick is unimplemented, will panic.
// TODO: make interval clock use FakeClock so this can be implemented.
func (*IntervalClock) Tick(d time.Duration) <-chan time.Time {
panic("IntervalClock doesn't implement Tick")
}
// Sleep is unimplemented, will panic.
func (*IntervalClock) Sleep(d time.Duration) {
panic("IntervalClock doesn't implement Sleep")
}
var _ = clock.Timer(&fakeTimer{})
// fakeTimer implements clock.Timer based on a FakeClock.
type fakeTimer struct {
fakeClock *FakeClock
waiter fakeClockWaiter
}
// C returns the channel that notifies when this timer has fired.
func (f *fakeTimer) C() <-chan time.Time {
return f.waiter.destChan
}
// Stop stops the timer and returns true if the timer has not yet fired, or false otherwise.
func (f *fakeTimer) Stop() bool {
f.fakeClock.lock.Lock()
defer f.fakeClock.lock.Unlock()
newWaiters := make([]*fakeClockWaiter, 0, len(f.fakeClock.waiters))
for i := range f.fakeClock.waiters {
w := f.fakeClock.waiters[i]
if w != &f.waiter {
newWaiters = append(newWaiters, w)
}
}
f.fakeClock.waiters = newWaiters
return !f.waiter.fired
}
// Reset resets the timer to the fake clock's "now" + d. It returns true if the timer has not yet
// fired, or false otherwise.
func (f *fakeTimer) Reset(d time.Duration) bool {
f.fakeClock.lock.Lock()
defer f.fakeClock.lock.Unlock()
active := !f.waiter.fired
f.waiter.fired = false
f.waiter.targetTime = f.fakeClock.time.Add(d)
var isWaiting bool
for i := range f.fakeClock.waiters {
w := f.fakeClock.waiters[i]
if w == &f.waiter {
isWaiting = true
break
}
}
if !isWaiting {
f.fakeClock.waiters = append(f.fakeClock.waiters, &f.waiter)
}
return active
}

274
vendor/k8s.io/utils/clock/testing/fake_clock_test.go generated vendored
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/*
Copyright 2015 The Kubernetes Authors.
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.
*/
package testing
import (
"testing"
"time"
)
func TestFakeClock(t *testing.T) {
startTime := time.Now()
tc := NewFakeClock(startTime)
tc.Step(time.Second)
now := tc.Now()
if now.Sub(startTime) != time.Second {
t.Errorf("input: %s now=%s gap=%s expected=%s", startTime, now, now.Sub(startTime), time.Second)
}
tt := tc.Now()
tc.SetTime(tt.Add(time.Hour))
if tc.Now().Sub(tt) != time.Hour {
t.Errorf("input: %s now=%s gap=%s expected=%s", tt, tc.Now(), tc.Now().Sub(tt), time.Hour)
}
}
func TestFakeClockSleep(t *testing.T) {
startTime := time.Now()
tc := NewFakeClock(startTime)
tc.Sleep(time.Duration(1) * time.Hour)
now := tc.Now()
if now.Sub(startTime) != time.Hour {
t.Errorf("Fake sleep failed, expected time to advance by one hour, instead, its %v", now.Sub(startTime))
}
}
func TestFakeAfter(t *testing.T) {
tc := NewFakeClock(time.Now())
if tc.HasWaiters() {
t.Errorf("unexpected waiter?")
}
oneSec := tc.After(time.Second)
if !tc.HasWaiters() {
t.Errorf("unexpected lack of waiter?")
}
oneOhOneSec := tc.After(time.Second + time.Millisecond)
twoSec := tc.After(2 * time.Second)
select {
case <-oneSec:
t.Errorf("unexpected channel read")
case <-oneOhOneSec:
t.Errorf("unexpected channel read")
case <-twoSec:
t.Errorf("unexpected channel read")
default:
}
tc.Step(999 * time.Millisecond)
select {
case <-oneSec:
t.Errorf("unexpected channel read")
case <-oneOhOneSec:
t.Errorf("unexpected channel read")
case <-twoSec:
t.Errorf("unexpected channel read")
default:
}
tc.Step(time.Millisecond)
select {
case <-oneSec:
// Expected!
case <-oneOhOneSec:
t.Errorf("unexpected channel read")
case <-twoSec:
t.Errorf("unexpected channel read")
default:
t.Errorf("unexpected non-channel read")
}
tc.Step(time.Millisecond)
select {
case <-oneSec:
// should not double-trigger!
t.Errorf("unexpected channel read")
case <-oneOhOneSec:
// Expected!
case <-twoSec:
t.Errorf("unexpected channel read")
default:
t.Errorf("unexpected non-channel read")
}
}
func TestFakeTick(t *testing.T) {
tc := NewFakeClock(time.Now())
if tc.HasWaiters() {
t.Errorf("unexpected waiter?")
}
oneSec := tc.Tick(time.Second)
if !tc.HasWaiters() {
t.Errorf("unexpected lack of waiter?")
}
oneOhOneSec := tc.Tick(time.Second + time.Millisecond)
twoSec := tc.Tick(2 * time.Second)
select {
case <-oneSec:
t.Errorf("unexpected channel read")
case <-oneOhOneSec:
t.Errorf("unexpected channel read")
case <-twoSec:
t.Errorf("unexpected channel read")
default:
}
tc.Step(999 * time.Millisecond) // t=.999
select {
case <-oneSec:
t.Errorf("unexpected channel read")
case <-oneOhOneSec:
t.Errorf("unexpected channel read")
case <-twoSec:
t.Errorf("unexpected channel read")
default:
}
tc.Step(time.Millisecond) // t=1.000
select {
case <-oneSec:
// Expected!
case <-oneOhOneSec:
t.Errorf("unexpected channel read")
case <-twoSec:
t.Errorf("unexpected channel read")
default:
t.Errorf("unexpected non-channel read")
}
tc.Step(time.Millisecond) // t=1.001
select {
case <-oneSec:
// should not double-trigger!
t.Errorf("unexpected channel read")
case <-oneOhOneSec:
// Expected!
case <-twoSec:
t.Errorf("unexpected channel read")
default:
t.Errorf("unexpected non-channel read")
}
tc.Step(time.Second) // t=2.001
tc.Step(time.Second) // t=3.001
tc.Step(time.Second) // t=4.001
tc.Step(time.Second) // t=5.001
// The one second ticker should not accumulate ticks
accumulatedTicks := 0
drained := false
for !drained {
select {
case <-oneSec:
accumulatedTicks++
default:
drained = true
}
}
if accumulatedTicks != 1 {
t.Errorf("unexpected number of accumulated ticks: %d", accumulatedTicks)
}
}
func TestFakeStop(t *testing.T) {
tc := NewFakeClock(time.Now())
timer := tc.NewTimer(time.Second)
if !tc.HasWaiters() {
t.Errorf("expected a waiter to be present, but it is not")
}
timer.Stop()
if tc.HasWaiters() {
t.Errorf("expected existing waiter to be cleaned up, but it is still present")
}
}
// This tests the pattern documented in the go docs here: https://golang.org/pkg/time/#Timer.Stop
// This pattern is required to safely reset a timer, so should be common.
// This also tests resetting the timer
func TestFakeStopDrain(t *testing.T) {
start := time.Time{}
tc := NewFakeClock(start)
timer := tc.NewTimer(time.Second)
tc.Step(1 * time.Second)
// Effectively `if !timer.Stop { <-t.C }` but with more asserts
if timer.Stop() {
t.Errorf("stop should report the timer had triggered")
}
if readTime := assertReadTime(t, timer.C()); !readTime.Equal(start.Add(1 * time.Second)) {
t.Errorf("timer should have ticked after 1 second, got %v", readTime)
}
timer.Reset(time.Second)
if !tc.HasWaiters() {
t.Errorf("expected a waiter to be present, but it is not")
}
select {
case <-timer.C():
t.Fatal("got time early on clock; haven't stepped yet")
default:
}
tc.Step(1 * time.Second)
if readTime := assertReadTime(t, timer.C()); !readTime.Equal(start.Add(2 * time.Second)) {
t.Errorf("timer should have ticked again after reset + 1 more second, got %v", readTime)
}
}
func TestTimerNegative(t *testing.T) {
tc := NewFakeClock(time.Now())
timer := tc.NewTimer(-1 * time.Second)
if !tc.HasWaiters() {
t.Errorf("expected a waiter to be present, but it is not")
}
// force waiters to be called
tc.Step(0)
tick := assertReadTime(t, timer.C())
if tick != tc.Now() {
t.Errorf("expected -1s to turn into now: %v != %v", tick, tc.Now())
}
}
func TestTickNegative(t *testing.T) {
// The stdlib 'Tick' returns nil for negative and zero values, so our fake
// should too.
tc := NewFakeClock(time.Now())
if tick := tc.Tick(-1 * time.Second); tick != nil {
t.Errorf("expected negative tick to be nil: %v", tick)
}
if tick := tc.Tick(0); tick != nil {
t.Errorf("expected negative tick to be nil: %v", tick)
}
}
// assertReadTime asserts that the channel can be read and returns the time it
// reads from the channel.
func assertReadTime(t testing.TB, c <-chan time.Time) time.Time {
type helper interface {
Helper()
}
if h, ok := t.(helper); ok {
h.Helper()
}
select {
case ti, ok := <-c:
if !ok {
t.Fatalf("expected to read time from channel, but it was closed")
}
return ti
default:
t.Fatalf("expected to read time from channel, but couldn't")
}
panic("unreachable")
}

3
vendor/k8s.io/utils/code-of-conduct.md generated vendored
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# Kubernetes Community Code of Conduct
Please refer to our [Kubernetes Community Code of Conduct](https://git.k8s.io/community/code-of-conduct.md)

215
vendor/k8s.io/utils/exec/exec_test.go generated vendored
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@ -1,215 +0,0 @@
/*
Copyright 2017 The Kubernetes Authors.
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.
*/
package exec
import (
"context"
"io"
"io/ioutil"
osexec "os/exec"
"testing"
"time"
)
func TestExecutorNoArgs(t *testing.T) {
ex := New()
cmd := ex.Command("true")
out, err := cmd.CombinedOutput()
if err != nil {
t.Errorf("expected success, got %v", err)
}
if len(out) != 0 {
t.Errorf("expected no output, got %q", string(out))
}
cmd = ex.Command("false")
out, err = cmd.CombinedOutput()
if err == nil {
t.Errorf("expected failure, got nil error")
}
if len(out) != 0 {
t.Errorf("expected no output, got %q", string(out))
}
ee, ok := err.(ExitError)
if !ok {
t.Errorf("expected an ExitError, got %+v", err)
}
if ee.Exited() {
if code := ee.ExitStatus(); code != 1 {
t.Errorf("expected exit status 1, got %d", code)
}
}
cmd = ex.Command("/does/not/exist")
out, err = cmd.CombinedOutput()
if err == nil {
t.Errorf("expected failure, got nil error")
}
if ee, ok := err.(ExitError); ok {
t.Errorf("expected non-ExitError, got %+v", ee)
}
}
func TestExecutorWithArgs(t *testing.T) {
ex := New()
cmd := ex.Command("echo", "stdout")
out, err := cmd.CombinedOutput()
if err != nil {
t.Errorf("expected success, got %+v", err)
}
if string(out) != "stdout\n" {
t.Errorf("unexpected output: %q", string(out))
}
cmd = ex.Command("/bin/sh", "-c", "echo stderr > /dev/stderr")
out, err = cmd.CombinedOutput()
if err != nil {
t.Errorf("expected success, got %+v", err)
}
if string(out) != "stderr\n" {
t.Errorf("unexpected output: %q", string(out))
}
}
func TestLookPath(t *testing.T) {
ex := New()
shExpected, _ := osexec.LookPath("sh")
sh, _ := ex.LookPath("sh")
if sh != shExpected {
t.Errorf("unexpected result for LookPath: got %s, expected %s", sh, shExpected)
}
}
func TestExecutableNotFound(t *testing.T) {
exec := New()
cmd := exec.Command("fake_executable_name")
_, err := cmd.CombinedOutput()
if err != ErrExecutableNotFound {
t.Errorf("cmd.CombinedOutput(): Expected error ErrExecutableNotFound but got %v", err)
}
cmd = exec.Command("fake_executable_name")
_, err = cmd.Output()
if err != ErrExecutableNotFound {
t.Errorf("cmd.Output(): Expected error ErrExecutableNotFound but got %v", err)
}
cmd = exec.Command("fake_executable_name")
err = cmd.Run()
if err != ErrExecutableNotFound {
t.Errorf("cmd.Run(): Expected error ErrExecutableNotFound but got %v", err)
}
}
func TestStopBeforeStart(t *testing.T) {
cmd := New().Command("echo", "hello")
// no panic calling Stop before calling Run
cmd.Stop()
cmd.Run()
// no panic calling Stop after command is done
cmd.Stop()
}
func TestTimeout(t *testing.T) {
exec := New()
ctx, cancel := context.WithTimeout(context.Background(), time.Nanosecond)
defer cancel()
err := exec.CommandContext(ctx, "sleep", "2").Run()
if err != context.DeadlineExceeded {
t.Errorf("expected %v but got %v", context.DeadlineExceeded, err)
}
}
func TestSetEnv(t *testing.T) {
ex := New()
out, err := ex.Command("/bin/sh", "-c", "echo $FOOBAR").CombinedOutput()
if err != nil {
t.Errorf("expected success, got %+v", err)
}
if string(out) != "\n" {
t.Errorf("unexpected output: %q", string(out))
}
cmd := ex.Command("/bin/sh", "-c", "echo $FOOBAR")
cmd.SetEnv([]string{"FOOBAR=baz"})
out, err = cmd.CombinedOutput()
if err != nil {
t.Errorf("expected success, got %+v", err)
}
if string(out) != "baz\n" {
t.Errorf("unexpected output: %q", string(out))
}
}
func TestStdIOPipes(t *testing.T) {
cmd := New().Command("/bin/sh", "-c", "echo 'OUT'>&1; echo 'ERR'>&2")
stdoutPipe, err := cmd.StdoutPipe()
if err != nil {
t.Fatalf("expected StdoutPipe() not to error, got: %v", err)
}
stderrPipe, err := cmd.StderrPipe()
if err != nil {
t.Fatalf("expected StderrPipe() not to error, got: %v", err)
}
stdout := make(chan string)
stderr := make(chan string)
go func() {
stdout <- readAll(t, stdoutPipe, "StdOut")
}()
go func() {
stderr <- readAll(t, stderrPipe, "StdErr")
}()
if err := cmd.Start(); err != nil {
t.Errorf("expected Start() not to error, got: %v", err)
}
if e, a := "OUT\n", <-stdout; e != a {
t.Errorf("expected StdOut to be '%s', got: '%v'", e, a)
}
if e, a := "ERR\n", <-stderr; e != a {
t.Errorf("expected StdErr to be '%s', got: '%v'", e, a)
}
if err := cmd.Wait(); err != nil {
t.Errorf("expected Wait() not to error, got: %v", err)
}
}
func readAll(t *testing.T, r io.Reader, n string) string {
t.Helper()
b, err := ioutil.ReadAll(r)
if err != nil {
t.Fatalf("unexpected error when reading from %s: %v", n, err)
}
return string(b)
}

37
vendor/k8s.io/utils/exec/new_test.go generated vendored
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@ -1,37 +0,0 @@
/*
Copyright 2017 The Kubernetes Authors.
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.
*/
package exec_test
import (
"bytes"
"fmt"
"k8s.io/utils/exec"
)
func ExampleNew() {
exec := exec.New()
cmd := exec.Command("echo", "Bonjour!")
buff := bytes.Buffer{}
cmd.SetStdout(&buff)
if err := cmd.Run(); err != nil {
panic(err)
}
fmt.Println(buff.String())
// Output: Bonjour!
}

55
vendor/k8s.io/utils/exec/stdiopipe_test.go generated vendored
View File

@ -1,55 +0,0 @@
/*
Copyright 2018 The Kubernetes Authors.
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.
*/
package exec_test
import (
"fmt"
"io/ioutil"
"k8s.io/utils/exec"
)
func ExampleNew_stderrPipe() {
cmd := exec.New().Command("/bin/sh", "-c", "echo 'We can read from stderr via pipe!' >&2")
stderrPipe, err := cmd.StderrPipe()
if err != nil {
panic(err)
}
stderr := make(chan []byte)
go func() {
b, err := ioutil.ReadAll(stderrPipe)
if err != nil {
panic(err)
}
stderr <- b
}()
if err := cmd.Start(); err != nil {
panic(err)
}
received := <-stderr
if err := cmd.Wait(); err != nil {
panic(err)
}
fmt.Println(string(received))
// Output: We can read from stderr via pipe!
}

217
vendor/k8s.io/utils/exec/testing/fake_exec.go generated vendored
View File

@ -1,217 +0,0 @@
/*
Copyright 2017 The Kubernetes Authors.
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.
*/
package testingexec
import (
"context"
"fmt"
"io"
"k8s.io/utils/exec"
)
// FakeExec is a simple scripted Interface type.
type FakeExec struct {
CommandScript []FakeCommandAction
CommandCalls int
LookPathFunc func(string) (string, error)
}
var _ exec.Interface = &FakeExec{}
// FakeCommandAction is the function to be executed
type FakeCommandAction func(cmd string, args ...string) exec.Cmd
// Command is to track the commands that are executed
func (fake *FakeExec) Command(cmd string, args ...string) exec.Cmd {
if fake.CommandCalls > len(fake.CommandScript)-1 {
panic(fmt.Sprintf("ran out of Command() actions. Could not handle command [%d]: %s args: %v", fake.CommandCalls, cmd, args))
}
i := fake.CommandCalls
fake.CommandCalls++
return fake.CommandScript[i](cmd, args...)
}
// CommandContext wraps arguments into exec.Cmd
func (fake *FakeExec) CommandContext(ctx context.Context, cmd string, args ...string) exec.Cmd {
return fake.Command(cmd, args...)
}
// LookPath is for finding the path of a file
func (fake *FakeExec) LookPath(file string) (string, error) {
return fake.LookPathFunc(file)
}
// FakeCmd is a simple scripted Cmd type.
type FakeCmd struct {
Argv []string
CombinedOutputScript []FakeCombinedOutputAction
CombinedOutputCalls int
CombinedOutputLog [][]string
RunScript []FakeRunAction
RunCalls int
RunLog [][]string
Dirs []string
Stdin io.Reader
Stdout io.Writer
Stderr io.Writer
Env []string
StdoutPipeResponse FakeStdIOPipeResponse
StderrPipeResponse FakeStdIOPipeResponse
WaitResponse error
StartResponse error
}
var _ exec.Cmd = &FakeCmd{}
// InitFakeCmd is for creating a fake exec.Cmd
func InitFakeCmd(fake *FakeCmd, cmd string, args ...string) exec.Cmd {
fake.Argv = append([]string{cmd}, args...)
return fake
}
// FakeStdIOPipeResponse holds responses to use as fakes for the StdoutPipe and
// StderrPipe method calls
type FakeStdIOPipeResponse struct {
ReadCloser io.ReadCloser
Error error
}
// FakeCombinedOutputAction is a function type
type FakeCombinedOutputAction func() ([]byte, error)
// FakeRunAction is a function type
type FakeRunAction func() ([]byte, []byte, error)
// SetDir sets the directory
func (fake *FakeCmd) SetDir(dir string) {
fake.Dirs = append(fake.Dirs, dir)
}
// SetStdin sets the stdin
func (fake *FakeCmd) SetStdin(in io.Reader) {
fake.Stdin = in
}
// SetStdout sets the stdout
func (fake *FakeCmd) SetStdout(out io.Writer) {
fake.Stdout = out
}
// SetStderr sets the stderr
func (fake *FakeCmd) SetStderr(out io.Writer) {
fake.Stderr = out
}
// SetEnv sets the environment variables
func (fake *FakeCmd) SetEnv(env []string) {
fake.Env = env
}
// StdoutPipe returns an injected ReadCloser & error (via StdoutPipeResponse)
// to be able to inject an output stream on Stdout
func (fake *FakeCmd) StdoutPipe() (io.ReadCloser, error) {
return fake.StdoutPipeResponse.ReadCloser, fake.StdoutPipeResponse.Error
}
// StderrPipe returns an injected ReadCloser & error (via StderrPipeResponse)
// to be able to inject an output stream on Stderr
func (fake *FakeCmd) StderrPipe() (io.ReadCloser, error) {
return fake.StderrPipeResponse.ReadCloser, fake.StderrPipeResponse.Error
}
// Start mimicks starting the process (in the background) and returns the
// injected StartResponse
func (fake *FakeCmd) Start() error {
return fake.StartResponse
}
// Wait mimicks waiting for the process to exit returns the
// injected WaitResponse
func (fake *FakeCmd) Wait() error {
return fake.WaitResponse
}
// Run sets runs the command
func (fake *FakeCmd) Run() error {
if fake.RunCalls > len(fake.RunScript)-1 {
panic("ran out of Run() actions")
}
if fake.RunLog == nil {
fake.RunLog = [][]string{}
}
i := fake.RunCalls
fake.RunLog = append(fake.RunLog, append([]string{}, fake.Argv...))
fake.RunCalls++
stdout, stderr, err := fake.RunScript[i]()
if stdout != nil {
fake.Stdout.Write(stdout)
}
if stderr != nil {
fake.Stderr.Write(stderr)
}
return err
}
// CombinedOutput returns the output from the command
func (fake *FakeCmd) CombinedOutput() ([]byte, error) {
if fake.CombinedOutputCalls > len(fake.CombinedOutputScript)-1 {
panic("ran out of CombinedOutput() actions")
}
if fake.CombinedOutputLog == nil {
fake.CombinedOutputLog = [][]string{}
}
i := fake.CombinedOutputCalls
fake.CombinedOutputLog = append(fake.CombinedOutputLog, append([]string{}, fake.Argv...))
fake.CombinedOutputCalls++
return fake.CombinedOutputScript[i]()
}
// Output is the response from the command
func (fake *FakeCmd) Output() ([]byte, error) {
return nil, fmt.Errorf("unimplemented")
}
// Stop is to stop the process
func (fake *FakeCmd) Stop() {
// no-op
}
// FakeExitError is a simple fake ExitError type.
type FakeExitError struct {
Status int
}
var _ exec.ExitError = FakeExitError{}
func (fake FakeExitError) String() string {
return fmt.Sprintf("exit %d", fake.Status)
}
func (fake FakeExitError) Error() string {
return fake.String()
}
// Exited always returns true
func (fake FakeExitError) Exited() bool {
return true
}
// ExitStatus returns the fake status
func (fake FakeExitError) ExitStatus() int {
return fake.Status
}

32
vendor/k8s.io/utils/hack/verify-gofmt.sh generated vendored
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@ -1,32 +0,0 @@
#!/usr/bin/env bash
# Copyright 2017 The Kubernetes Authors.
#
# 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.
set -o errexit
set -o nounset
set -o pipefail
if ! which gofmt > /dev/null; then
echo "Can not find gofmt"
exit 1
fi
diff=$(gofmt -s -d . 2>&1)
if [[ -n "${diff}" ]]; then
echo "${diff}"
echo
echo "Please run 'make update-fmt'"
exit 1
fi

32
vendor/k8s.io/utils/hack/verify-golint.sh generated vendored
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@ -1,32 +0,0 @@
#!/bin/bash
# Copyright 2018 The Kubernetes Authors.
#
# 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.
set -o errexit
set -o nounset
set -o pipefail
if ! which golint > /dev/null; then
echo "installing golint"
go get golang.org/x/lint/golint
fi
errors="$(golint ./...)"
if [[ -n "$errors" ]]; then
echo "Errors from golint:"
echo
echo "${errors}"
exit 1
fi

55
vendor/k8s.io/utils/io/consistentread.go generated vendored
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@ -1,55 +0,0 @@
/*
Copyright 2017 The Kubernetes Authors.
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.
*/
package io
import (
"bytes"
"fmt"
"io/ioutil"
)
// ConsistentRead repeatedly reads a file until it gets the same content twice.
// This is useful when reading files in /proc that are larger than page size
// and kernel may modify them between individual read() syscalls.
func ConsistentRead(filename string, attempts int) ([]byte, error) {
return consistentReadSync(filename, attempts, nil)
}
// consistentReadSync is the main functionality of ConsistentRead but
// introduces a sync callback that can be used by the tests to mutate the file
// from which the test data is being read
func consistentReadSync(filename string, attempts int, sync func(int)) ([]byte, error) {
oldContent, err := ioutil.ReadFile(filename)
if err != nil {
return nil, err
}
for i := 0; i < attempts; i++ {
if sync != nil {
sync(i)
}
newContent, err := ioutil.ReadFile(filename)
if err != nil {
return nil, err
}
if bytes.Compare(oldContent, newContent) == 0 {
return newContent, nil
}
// Files are different, continue reading
oldContent = newContent
}
return nil, fmt.Errorf("could not get consistent content of %s after %d attempts", filename, attempts)
}

94
vendor/k8s.io/utils/io/consistentread_test.go generated vendored
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@ -1,94 +0,0 @@
/*
Copyright 2018 The Kubernetes Authors.
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.
*/
package io
import (
"fmt"
"io/ioutil"
"os"
"path/filepath"
"syscall"
"testing"
)
func writeToPipe(namedPipe string, flaky bool, i int) {
pipe, err := os.OpenFile(namedPipe, os.O_WRONLY, 0600)
if err != nil {
return
}
// The first two reads should never be consistent but all
// subsequent reads should be
outstr := fmt.Sprintf("Foobar %t", (i <= 0))
if flaky {
outstr = fmt.Sprintf("Foobar %d", i)
}
pipe.Write([]byte(outstr))
pipe.Close()
}
func makePipe(t *testing.T) string {
tmp, err := ioutil.TempDir("", "pipe-test")
if err != nil {
t.Fatal(err)
}
pipe := filepath.Join(tmp, "pipe")
syscall.Mkfifo(pipe, 0600)
return pipe
}
func writer(namedPipe string, flaky bool, c <-chan int, d <-chan bool) {
// Make sure something is in the fifo otherwise the first iteration of
// ConsistentRead will block forever
writeToPipe(namedPipe, flaky, -1)
for {
select {
case i := <-c:
writeToPipe(namedPipe, flaky, i)
case <-d:
os.RemoveAll(namedPipe)
return
}
}
}
func TestConsistentRead(t *testing.T) {
pipe := makePipe(t)
prog, done := make(chan int), make(chan bool)
go writer(pipe, false, prog, done)
if _, err := consistentReadSync(pipe, 3, func(i int) { prog <- i }); err != nil {
t.Fatal(err)
}
done <- true
}
func TestConsistentReadFlakyReader(t *testing.T) {
pipe := makePipe(t)
prog, done := make(chan int), make(chan bool)
go writer(pipe, true, prog, done)
if _, err := consistentReadSync(pipe, 3, func(i int) { prog <- i }); err == nil {
t.Fatal("flaky reader returned consistent results")
}
}

8
vendor/k8s.io/utils/nsenter/OWNERS generated vendored
View File

@ -1,8 +0,0 @@
reviewers:
- jsafrane
- msau42
- cofyc
approvers:
- jsafrane
- msau42
- cofyc

67
vendor/k8s.io/utils/nsenter/exec.go generated vendored
View File

@ -1,67 +0,0 @@
// +build linux
/*
Copyright 2018 The Kubernetes Authors.
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.
*/
package nsenter
import (
"context"
"fmt"
"path/filepath"
"github.com/golang/glog"
"k8s.io/utils/exec"
)
// Executor wraps executor interface to be executed via nsenter
type Executor struct {
// Exec implementation
executor exec.Interface
// Path to the host's root proc path
hostProcMountNsPath string
}
// NewNsenterExecutor returns new nsenter based executor
func NewNsenterExecutor(hostRootFsPath string, executor exec.Interface) *Executor {
hostProcMountNsPath := filepath.Join(hostRootFsPath, mountNsPath)
nsExecutor := &Executor{
hostProcMountNsPath: hostProcMountNsPath,
executor: executor,
}
return nsExecutor
}
// Command returns a command wrapped with nenter
func (nsExecutor *Executor) Command(cmd string, args ...string) exec.Cmd {
fullArgs := append([]string{fmt.Sprintf("--mount=%s", nsExecutor.hostProcMountNsPath), "--"},
append([]string{cmd}, args...)...)
glog.V(5).Infof("Running nsenter command: %v %v", nsenterPath, fullArgs)
return nsExecutor.executor.Command(nsenterPath, fullArgs...)
}
// CommandContext returns a CommandContext wrapped with nsenter
func (nsExecutor *Executor) CommandContext(ctx context.Context, cmd string, args ...string) exec.Cmd {
fullArgs := append([]string{fmt.Sprintf("--mount=%s", nsExecutor.hostProcMountNsPath), "--"},
append([]string{cmd}, args...)...)
glog.V(5).Infof("Running nsenter command: %v %v", nsenterPath, fullArgs)
return nsExecutor.executor.CommandContext(ctx, nsenterPath, fullArgs...)
}
// LookPath returns a LookPath wrapped with nsenter
func (nsExecutor *Executor) LookPath(file string) (string, error) {
return "", fmt.Errorf("not implemented, error looking up : %s", file)
}

58
vendor/k8s.io/utils/nsenter/exec_unsupported.go generated vendored
View File

@ -1,58 +0,0 @@
// +build !linux
/*
Copyright 2017 The Kubernetes Authors.
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.
*/
package nsenter
import (
"context"
"fmt"
"k8s.io/utils/exec"
)
// Executor wraps executor interface to be executed via nsenter
type Executor struct {
// Exec implementation
executor exec.Interface
// Path to the host's root proc path
hostProcMountNsPath string
}
// NewNsenterExecutor returns new nsenter based executor
func NewNsenterExecutor(hostRootFsPath string, executor exec.Interface) *Executor {
nsExecutor := &Executor{
hostProcMountNsPath: hostRootFsPath,
executor: executor,
}
return nsExecutor
}
// Command returns a command wrapped with nenter
func (nsExecutor *Executor) Command(cmd string, args ...string) exec.Cmd {
return nil
}
// CommandContext returns a CommandContext wrapped with nsenter
func (nsExecutor *Executor) CommandContext(ctx context.Context, cmd string, args ...string) exec.Cmd {
return nil
}
// LookPath returns a LookPath wrapped with nsenter
func (nsExecutor *Executor) LookPath(file string) (string, error) {
return "", fmt.Errorf("not implemented, error looking up : %s", file)
}

236
vendor/k8s.io/utils/nsenter/nsenter.go generated vendored
View File

@ -1,236 +0,0 @@
// +build linux
/*
Copyright 2017 The Kubernetes Authors.
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.
*/
package nsenter
import (
"context"
"errors"
"fmt"
"os"
"path/filepath"
"strings"
"k8s.io/utils/exec"
"github.com/golang/glog"
)
const (
// DefaultHostRootFsPath is path to host's filesystem mounted into container
// with kubelet.
DefaultHostRootFsPath = "/rootfs"
// mountNsPath is the default mount namespace of the host
mountNsPath = "/proc/1/ns/mnt"
// nsenterPath is the default nsenter command
nsenterPath = "nsenter"
)
// Nsenter is part of experimental support for running the kubelet
// in a container.
//
// Nsenter requires:
//
// 1. Docker >= 1.6 due to the dependency on the slave propagation mode
// of the bind-mount of the kubelet root directory in the container.
// Docker 1.5 used a private propagation mode for bind-mounts, so mounts
// performed in the host's mount namespace do not propagate out to the
// bind-mount in this docker version.
// 2. The host's root filesystem must be available at /rootfs
// 3. The nsenter binary must be on the Kubelet process' PATH in the container's
// filesystem.
// 4. The Kubelet process must have CAP_SYS_ADMIN (required by nsenter); at
// the present, this effectively means that the kubelet is running in a
// privileged container.
// 5. The volume path used by the Kubelet must be the same inside and outside
// the container and be writable by the container (to initialize volume)
// contents. TODO: remove this requirement.
// 6. The host image must have "mount", "findmnt", "umount", "stat", "touch",
// "mkdir", "ls", "sh" and "chmod" binaries in /bin, /usr/sbin, or /usr/bin
// 7. The host image should have systemd-run in /bin, /usr/sbin, or /usr/bin if
// systemd is installed/enabled in the operating system.
// For more information about mount propagation modes, see:
// https://www.kernel.org/doc/Documentation/filesystems/sharedsubtree.txt
type Nsenter struct {
// a map of commands to their paths on the host filesystem
paths map[string]string
// Path to the host filesystem, typically "/rootfs". Used only for testing.
hostRootFsPath string
// Exec implementation, used only for testing
executor exec.Interface
}
// NewNsenter constructs a new instance of Nsenter
func NewNsenter(hostRootFsPath string, executor exec.Interface) (*Nsenter, error) {
ne := &Nsenter{
hostRootFsPath: hostRootFsPath,
executor: executor,
}
if err := ne.initPaths(); err != nil {
return nil, err
}
return ne, nil
}
func (ne *Nsenter) initPaths() error {
ne.paths = map[string]string{}
binaries := []string{
"mount",
"findmnt",
"umount",
"systemd-run",
"stat",
"touch",
"mkdir",
"sh",
"chmod",
"realpath",
}
// search for the required commands in other locations besides /usr/bin
for _, binary := range binaries {
// check for binary under the following directories
for _, path := range []string{"/", "/bin", "/usr/sbin", "/usr/bin"} {
binPath := filepath.Join(path, binary)
if _, err := os.Stat(filepath.Join(ne.hostRootFsPath, binPath)); err != nil {
continue
}
ne.paths[binary] = binPath
break
}
// systemd-run is optional, bailout if we don't find any of the other binaries
if ne.paths[binary] == "" && binary != "systemd-run" {
return fmt.Errorf("unable to find %v", binary)
}
}
return nil
}
// Exec executes nsenter commands in hostProcMountNsPath mount namespace
func (ne *Nsenter) Exec(cmd string, args []string) exec.Cmd {
hostProcMountNsPath := filepath.Join(ne.hostRootFsPath, mountNsPath)
fullArgs := append([]string{fmt.Sprintf("--mount=%s", hostProcMountNsPath), "--"},
append([]string{ne.AbsHostPath(cmd)}, args...)...)
glog.V(5).Infof("Running nsenter command: %v %v", nsenterPath, fullArgs)
return ne.executor.Command(nsenterPath, fullArgs...)
}
// AbsHostPath returns the absolute runnable path for a specified command
func (ne *Nsenter) AbsHostPath(command string) string {
path, ok := ne.paths[command]
if !ok {
return command
}
return path
}
// SupportsSystemd checks whether command systemd-run exists
func (ne *Nsenter) SupportsSystemd() (string, bool) {
systemdRunPath, ok := ne.paths["systemd-run"]
return systemdRunPath, ok && systemdRunPath != ""
}
// EvalSymlinks returns the path name on the host after evaluating symlinks on the
// host.
// mustExist makes EvalSymlinks to return error when the path does not
// exist. When it's false, it evaluates symlinks of the existing part and
// blindly adds the non-existing part:
// pathname: /mnt/volume/non/existing/directory
// /mnt/volume exists
// non/existing/directory does not exist
// -> It resolves symlinks in /mnt/volume to say /mnt/foo and returns
// /mnt/foo/non/existing/directory.
//
// BEWARE! EvalSymlinks is not able to detect symlink looks with mustExist=false!
// If /tmp/link is symlink to /tmp/link, EvalSymlinks(/tmp/link/foo) returns /tmp/link/foo.
func (ne *Nsenter) EvalSymlinks(pathname string, mustExist bool) (string, error) {
var args []string
if mustExist {
// "realpath -e: all components of the path must exist"
args = []string{"-e", pathname}
} else {
// "realpath -m: no path components need exist or be a directory"
args = []string{"-m", pathname}
}
outBytes, err := ne.Exec("realpath", args).CombinedOutput()
if err != nil {
glog.Infof("failed to resolve symbolic links on %s: %v", pathname, err)
return "", err
}
return strings.TrimSpace(string(outBytes)), nil
}
// KubeletPath returns the path name that can be accessed by containerized
// kubelet. It is recommended to resolve symlinks on the host by EvalSymlinks
// before calling this function
func (ne *Nsenter) KubeletPath(pathname string) string {
return filepath.Join(ne.hostRootFsPath, pathname)
}
// NewFakeNsenter returns a Nsenter that does not run "nsenter --mount=... --",
// but runs everything in the same mount namespace as the unit test binary.
// rootfsPath is supposed to be a symlink, e.g. /tmp/xyz/rootfs -> /.
// This fake Nsenter is enough for most operations, e.g. to resolve symlinks,
// but it's not enough to call /bin/mount - unit tests don't run as root.
func NewFakeNsenter(rootfsPath string) (*Nsenter, error) {
executor := &fakeExec{
rootfsPath: rootfsPath,
}
// prepare /rootfs/bin, usr/bin and usr/sbin
bin := filepath.Join(rootfsPath, "bin")
if err := os.Symlink("/bin", bin); err != nil {
return nil, err
}
usr := filepath.Join(rootfsPath, "usr")
if err := os.Mkdir(usr, 0755); err != nil {
return nil, err
}
usrbin := filepath.Join(usr, "bin")
if err := os.Symlink("/usr/bin", usrbin); err != nil {
return nil, err
}
usrsbin := filepath.Join(usr, "sbin")
if err := os.Symlink("/usr/sbin", usrsbin); err != nil {
return nil, err
}
return NewNsenter(rootfsPath, executor)
}
type fakeExec struct {
rootfsPath string
}
func (f fakeExec) Command(cmd string, args ...string) exec.Cmd {
// This will intentionaly panic if Nsenter does not provide enough arguments.
realCmd := args[2]
realArgs := args[3:]
return exec.New().Command(realCmd, realArgs...)
}
func (fakeExec) LookPath(file string) (string, error) {
return "", errors.New("not implemented")
}
func (fakeExec) CommandContext(ctx context.Context, cmd string, args ...string) exec.Cmd {
return nil
}
var _ exec.Interface = fakeExec{}

311
vendor/k8s.io/utils/nsenter/nsenter_test.go generated vendored
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@ -1,311 +0,0 @@
// +build linux
/*
Copyright 2018 The Kubernetes Authors.
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.
*/
package nsenter
import (
"io/ioutil"
"os"
"path/filepath"
"testing"
"k8s.io/utils/exec"
)
func TestExec(t *testing.T) {
tests := []struct {
name string
command string
args []string
expectedOutput string
expectError bool
}{
{
name: "simple command",
command: "echo",
args: []string{"hello", "world"},
expectedOutput: "hello world\n",
},
{
name: "nozero exit code",
command: "false",
expectError: true,
},
}
executor := fakeExec{
rootfsPath: "/rootfs",
}
for _, test := range tests {
ns := Nsenter{
hostRootFsPath: "/rootfs",
executor: executor,
}
cmd := ns.Exec(test.command, test.args)
outBytes, err := cmd.CombinedOutput()
out := string(outBytes)
if err != nil && !test.expectError {
t.Errorf("Test %q: unexpected error: %s", test.name, err)
}
if err == nil && test.expectError {
t.Errorf("Test %q: expected error, got none", test.name)
}
if test.expectedOutput != out {
t.Errorf("test %q: expected output %q, got %q", test.name, test.expectedOutput, out)
}
}
}
func TestKubeletPath(t *testing.T) {
tests := []struct {
rootfs string
hostpath string
expectedKubeletPath string
}{
{
// simple join
"/rootfs",
"/some/path",
"/rootfs/some/path",
},
{
// squash slashes
"/rootfs/",
"//some/path",
"/rootfs/some/path",
},
}
for _, test := range tests {
ns := Nsenter{
hostRootFsPath: test.rootfs,
}
out := ns.KubeletPath(test.hostpath)
if out != test.expectedKubeletPath {
t.Errorf("Expected path %q, got %q", test.expectedKubeletPath, out)
}
}
}
func TestEvalSymlinks(t *testing.T) {
tests := []struct {
name string
mustExist bool
prepare func(tmpdir string) (src string, expectedDst string, err error)
expectError bool
}{
{
name: "simple file /src",
mustExist: true,
prepare: func(tmpdir string) (src string, expectedDst string, err error) {
src = filepath.Join(tmpdir, "src")
err = ioutil.WriteFile(src, []byte{}, 0644)
return src, src, err
},
},
{
name: "non-existing file /src",
mustExist: true,
prepare: func(tmpdir string) (src string, expectedDst string, err error) {
src = filepath.Join(tmpdir, "src")
return src, "", nil
},
expectError: true,
},
{
name: "non-existing file /src/ with mustExist=false",
mustExist: false,
prepare: func(tmpdir string) (src string, expectedDst string, err error) {
src = filepath.Join(tmpdir, "src")
return src, src, nil
},
},
{
name: "non-existing file /existing/path/src with mustExist=false with existing directories",
mustExist: false,
prepare: func(tmpdir string) (src string, expectedDst string, err error) {
src = filepath.Join(tmpdir, "existing/path")
if err := os.MkdirAll(src, 0755); err != nil {
return "", "", err
}
src = filepath.Join(src, "src")
return src, src, nil
},
},
{
name: "simple symlink /src -> /dst",
mustExist: false,
prepare: func(tmpdir string) (src string, expectedDst string, err error) {
dst := filepath.Join(tmpdir, "dst")
if err = ioutil.WriteFile(dst, []byte{}, 0644); err != nil {
return "", "", err
}
src = filepath.Join(tmpdir, "src")
err = os.Symlink(dst, src)
return src, dst, err
},
},
{
name: "dangling symlink /src -> /non-existing-path",
mustExist: true,
prepare: func(tmpdir string) (src string, expectedDst string, err error) {
dst := filepath.Join(tmpdir, "non-existing-path")
src = filepath.Join(tmpdir, "src")
err = os.Symlink(dst, src)
return src, "", err
},
expectError: true,
},
{
name: "dangling symlink /src -> /non-existing-path with mustExist=false",
mustExist: false,
prepare: func(tmpdir string) (src string, expectedDst string, err error) {
dst := filepath.Join(tmpdir, "non-existing-path")
src = filepath.Join(tmpdir, "src")
err = os.Symlink(dst, src)
return src, dst, err
},
},
{
name: "symlink to directory /src/file, where /src is link to /dst",
mustExist: true,
prepare: func(tmpdir string) (src string, expectedDst string, err error) {
dst := filepath.Join(tmpdir, "dst")
if err = os.Mkdir(dst, 0755); err != nil {
return "", "", err
}
dstFile := filepath.Join(dst, "file")
if err = ioutil.WriteFile(dstFile, []byte{}, 0644); err != nil {
return "", "", err
}
src = filepath.Join(tmpdir, "src")
if err = os.Symlink(dst, src); err != nil {
return "", "", err
}
srcFile := filepath.Join(src, "file")
return srcFile, dstFile, nil
},
},
{
name: "symlink to non-existing directory: /src/file, where /src is link to /dst and dst does not exist",
mustExist: true,
prepare: func(tmpdir string) (src string, expectedDst string, err error) {
dst := filepath.Join(tmpdir, "dst")
src = filepath.Join(tmpdir, "src")
if err = os.Symlink(dst, src); err != nil {
return "", "", err
}
srcFile := filepath.Join(src, "file")
return srcFile, "", nil
},
expectError: true,
},
{
name: "symlink to non-existing directory: /src/file, where /src is link to /dst and dst does not exist with mustExist=false",
mustExist: false,
prepare: func(tmpdir string) (src string, expectedDst string, err error) {
dst := filepath.Join(tmpdir, "dst")
dstFile := filepath.Join(dst, "file")
src = filepath.Join(tmpdir, "src")
if err = os.Symlink(dst, src); err != nil {
return "", "", err
}
srcFile := filepath.Join(src, "file")
return srcFile, dstFile, nil
},
},
}
for _, test := range tests {
ns := Nsenter{
hostRootFsPath: "/rootfs",
executor: fakeExec{
rootfsPath: "/rootfs",
},
}
tmpdir, err := ioutil.TempDir("", "nsenter-hostpath-")
if err != nil {
t.Fatal(err)
}
defer os.RemoveAll(tmpdir)
src, expectedDst, err := test.prepare(tmpdir)
if err != nil {
t.Error(err)
continue
}
dst, err := ns.EvalSymlinks(src, test.mustExist)
if err != nil && !test.expectError {
t.Errorf("Test %q: unexpected error: %s", test.name, err)
}
if err == nil && test.expectError {
t.Errorf("Test %q: expected error, got none", test.name)
}
if dst != expectedDst {
t.Errorf("Test %q: expected destination %q, got %q", test.name, expectedDst, dst)
}
}
}
func TestNewNsenter(t *testing.T) {
// Create a symlink /tmp/xyz/rootfs -> / and use it as rootfs path
// It should resolve all binaries correctly, the test runs on Linux
tmpdir, err := ioutil.TempDir("", "nsenter-hostpath-")
if err != nil {
t.Fatal(err)
}
defer os.RemoveAll(tmpdir)
rootfs := filepath.Join(tmpdir, "rootfs")
if err = os.Symlink("/", rootfs); err != nil {
t.Fatal(err)
}
_, err = NewNsenter(rootfs, exec.New())
if err != nil {
t.Errorf("Error: %s", err)
}
}
func TestNewNsenterError(t *testing.T) {
// Create empty dir /tmp/xyz/rootfs and use it as rootfs path
// It should resolve all binaries correctly, the test runs on Linux
tmpdir, err := ioutil.TempDir("", "nsenter-hostpath-")
if err != nil {
t.Fatal(err)
}
defer os.RemoveAll(tmpdir)
rootfs := filepath.Join(tmpdir, "rootfs")
if err = os.MkdirAll(rootfs, 0755); err != nil {
t.Fatal(err)
}
_, err = NewNsenter(rootfs, exec.New())
if err == nil {
t.Errorf("Expected error, got none")
}
}

56
vendor/k8s.io/utils/nsenter/nsenter_unsupported.go generated vendored
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@ -1,56 +0,0 @@
// +build !linux
/*
Copyright 2017 The Kubernetes Authors.
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.
*/
package nsenter
import (
"k8s.io/utils/exec"
)
const (
// DefaultHostRootFsPath is path to host's filesystem mounted into container
// with kubelet.
DefaultHostRootFsPath = "/rootfs"
)
// Nsenter is part of experimental support for running the kubelet
// in a container.
type Nsenter struct {
// a map of commands to their paths on the host filesystem
Paths map[string]string
}
// NewNsenter constructs a new instance of Nsenter
func NewNsenter(hostRootFsPath string, executor exec.Interface) (*Nsenter, error) {
return &Nsenter{}, nil
}
// Exec executes nsenter commands in hostProcMountNsPath mount namespace
func (ne *Nsenter) Exec(cmd string, args []string) exec.Cmd {
return nil
}
// AbsHostPath returns the absolute runnable path for a specified command
func (ne *Nsenter) AbsHostPath(command string) string {
return ""
}
// SupportsSystemd checks whether command systemd-run exists
func (ne *Nsenter) SupportsSystemd() (string, bool) {
return "", false
}

9
vendor/k8s.io/utils/pointer/OWNERS generated vendored
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@ -1,9 +0,0 @@
# See the OWNERS docs at https://go.k8s.io/owners
approvers:
- apelisse
- stewart-yu
- thockin
reviewers:
- apelisse
- stewart-yu
- thockin

86
vendor/k8s.io/utils/pointer/pointer.go generated vendored
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@ -1,86 +0,0 @@
/*
Copyright 2018 The Kubernetes Authors.
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.
*/
package pointer
import (
"fmt"
"reflect"
)
// AllPtrFieldsNil tests whether all pointer fields in a struct are nil. This is useful when,
// for example, an API struct is handled by plugins which need to distinguish
// "no plugin accepted this spec" from "this spec is empty".
//
// This function is only valid for structs and pointers to structs. Any other
// type will cause a panic. Passing a typed nil pointer will return true.
func AllPtrFieldsNil(obj interface{}) bool {
v := reflect.ValueOf(obj)
if !v.IsValid() {
panic(fmt.Sprintf("reflect.ValueOf() produced a non-valid Value for %#v", obj))
}
if v.Kind() == reflect.Ptr {
if v.IsNil() {
return true
}
v = v.Elem()
}
for i := 0; i < v.NumField(); i++ {
if v.Field(i).Kind() == reflect.Ptr && !v.Field(i).IsNil() {
return false
}
}
return true
}
// Int32Ptr returns a pointer to an int32
func Int32Ptr(i int32) *int32 {
return &i
}
// Int64Ptr returns a pointer to an int64
func Int64Ptr(i int64) *int64 {
return &i
}
// Int32PtrDerefOr dereference the int32 ptr and returns it i not nil,
// else returns def.
func Int32PtrDerefOr(ptr *int32, def int32) int32 {
if ptr != nil {
return *ptr
}
return def
}
// BoolPtr returns a pointer to a bool
func BoolPtr(b bool) *bool {
return &b
}
// StringPtr returns a pointer to the passed string.
func StringPtr(s string) *string {
return &s
}
// Float32Ptr returns a pointer to the passed float32.
func Float32Ptr(i float32) *float32 {
return &i
}
// Float64Ptr returns a pointer to the passed float64.
func Float64Ptr(i float64) *float64 {
return &i
}

72
vendor/k8s.io/utils/pointer/pointer_test.go generated vendored
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@ -1,72 +0,0 @@
/*
Copyright 2018 The Kubernetes Authors.
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.
*/
package pointer
import (
"fmt"
"reflect"
"testing"
)
func TestAllPtrFieldsNil(t *testing.T) {
testCases := []struct {
obj interface{}
expected bool
}{
{struct{}{}, true},
{struct{ Foo int }{12345}, true},
{&struct{ Foo int }{12345}, true},
{struct{ Foo *int }{nil}, true},
{&struct{ Foo *int }{nil}, true},
{struct {
Foo int
Bar *int
}{12345, nil}, true},
{&struct {
Foo int
Bar *int
}{12345, nil}, true},
{struct {
Foo *int
Bar *int
}{nil, nil}, true},
{&struct {
Foo *int
Bar *int
}{nil, nil}, true},
{struct{ Foo *int }{new(int)}, false},
{&struct{ Foo *int }{new(int)}, false},
{struct {
Foo *int
Bar *int
}{nil, new(int)}, false},
{&struct {
Foo *int
Bar *int
}{nil, new(int)}, false},
{(*struct{})(nil), true},
}
for i, tc := range testCases {
name := fmt.Sprintf("case[%d]", i)
t.Run(name, func(t *testing.T) {
actualErr := AllPtrFieldsNil(tc.obj)
if !reflect.DeepEqual(tc.expected, actualErr) {
t.Errorf("%s: expected %t, got %t", name, tc.expected, !tc.expected)
}
})
}
}

70
vendor/k8s.io/utils/temp/dir.go generated vendored
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@ -1,70 +0,0 @@
/*
Copyright 2017 The Kubernetes Authors.
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.
*/
package temp
import (
"fmt"
"io"
"io/ioutil"
"os"
"path/filepath"
)
// Directory is an interface to a temporary directory, in which you can
// create new files.
type Directory interface {
// NewFile creates a new file in that directory. Calling NewFile
// with the same filename twice will result in an error.
NewFile(name string) (io.WriteCloser, error)
// Delete removes the directory and its content.
Delete() error
}
// Dir is wrapping an temporary directory on disk.
type Dir struct {
// Name is the name (full path) of the created directory.
Name string
}
var _ Directory = &Dir{}
// CreateTempDir returns a new Directory wrapping a temporary directory
// on disk.
func CreateTempDir(prefix string) (*Dir, error) {
name, err := ioutil.TempDir("", fmt.Sprintf("%s-", prefix))
if err != nil {
return nil, err
}
return &Dir{
Name: name,
}, nil
}
// NewFile creates a new file in the specified directory.
func (d *Dir) NewFile(name string) (io.WriteCloser, error) {
return os.OpenFile(
filepath.Join(d.Name, name),
os.O_WRONLY|os.O_CREATE|os.O_TRUNC|os.O_EXCL,
0700,
)
}
// Delete the underlying directory, and all of its content.
func (d *Dir) Delete() error {
return os.RemoveAll(d.Name)
}

90
vendor/k8s.io/utils/temp/dir_test.go generated vendored
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@ -1,90 +0,0 @@
/*
Copyright 2017 The Kubernetes Authors.
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.
*/
package temp
import (
"io/ioutil"
"os"
"path/filepath"
"strings"
"testing"
)
func TestTempDir(t *testing.T) {
dir, err := CreateTempDir("prefix")
if err != nil {
t.Fatal(err)
}
// Delete the directory no matter what.
defer dir.Delete()
// Make sure we have created the dir, with the proper name
_, err = os.Stat(dir.Name)
if err != nil {
t.Fatal(err)
}
if !strings.HasPrefix(filepath.Base(dir.Name), "prefix") {
t.Fatalf(`Directory doesn't start with "prefix": %q`,
dir.Name)
}
// Verify that the directory is empty
entries, err := ioutil.ReadDir(dir.Name)
if err != nil {
t.Fatal(err)
}
if len(entries) != 0 {
t.Fatalf("Directory should be empty, has %d elements",
len(entries))
}
// Create a couple of files
_, err = dir.NewFile("ONE")
if err != nil {
t.Fatal(err)
}
_, err = dir.NewFile("TWO")
if err != nil {
t.Fatal(err)
}
// We can't create the same file twice
_, err = dir.NewFile("TWO")
if err == nil {
t.Fatal("NewFile should fail to create the same file twice")
}
// We have created only two files
entries, err = ioutil.ReadDir(dir.Name)
if err != nil {
t.Fatal(err)
}
if len(entries) != 2 {
t.Fatalf("ReadDir should have two elements, has %d elements",
len(entries))
}
// Verify that deletion works
err = dir.Delete()
if err != nil {
t.Fatal(err)
}
_, err = os.Stat(dir.Name)
if err == nil {
t.Fatal("Directory should be gone, still present.")
}
}

19
vendor/k8s.io/utils/temp/doc.go generated vendored
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@ -1,19 +0,0 @@
/*
Copyright 2017 The Kubernetes Authors.
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.
*/
// Package temp provides an interface to handle temporary files and
// directories.
package temp // import "k8s.io/utils/temp"

66
vendor/k8s.io/utils/temp/temptest/dir.go generated vendored
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@ -1,66 +0,0 @@
/*
Copyright 2017 The Kubernetes Authors.
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.
*/
package temptest
import (
"errors"
"fmt"
"io"
"k8s.io/utils/temp"
)
// FakeDir implements a Directory that is not backed on the
// filesystem. This is useful for testing since the created "files" are
// simple bytes.Buffer that can be inspected.
type FakeDir struct {
Files map[string]*FakeFile
Deleted bool
}
var _ temp.Directory = &FakeDir{}
// NewFile returns a new FakeFile if the filename doesn't exist already.
// This function will fail if the directory has already been deleted.
func (d *FakeDir) NewFile(name string) (io.WriteCloser, error) {
if d.Deleted {
return nil, errors.New("can't create file in deleted FakeDir")
}
if d.Files == nil {
d.Files = map[string]*FakeFile{}
}
f := d.Files[name]
if f != nil {
return nil, fmt.Errorf(
"FakeDir already has file named %q",
name,
)
}
f = &FakeFile{}
d.Files[name] = f
return f, nil
}
// Delete doesn't remove anything, but records that the directory has
// been deleted.
func (d *FakeDir) Delete() error {
if d.Deleted {
return errors.New("failed to re-delete FakeDir")
}
d.Deleted = true
return nil
}

67
vendor/k8s.io/utils/temp/temptest/dir_test.go generated vendored
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@ -1,67 +0,0 @@
/*
Copyright 2017 The Kubernetes Authors.
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.
*/
package temptest
import (
"io"
"testing"
)
func TestFakeDir(t *testing.T) {
d := &FakeDir{}
f, err := d.NewFile("ONE")
if err != nil {
t.Fatal(err)
}
n, err := io.WriteString(f, "Bonjour!")
if n != 8 || err != nil {
t.Fatalf(
`WriteString(f, "Bonjour!") = (%v, %v), expected (%v, %v)`,
n, err,
0, nil,
)
}
if got := d.Files["ONE"].Buffer.String(); got != "Bonjour!" {
t.Fatalf(`file content is %q, expected "Bonjour!"`, got)
}
f, err = d.NewFile("ONE")
if err == nil {
t.Fatal("Same file could be created twice.")
}
err = d.Delete()
if err != nil {
t.Fatal(err)
}
err = d.Delete()
if err == nil {
t.Fatal("FakeDir could be deleted twice.")
}
f, err = d.NewFile("TWO")
if err == nil {
t.Fatal("NewFile could be created in deleted dir")
}
if !d.Deleted {
t.Fatal("FakeDir should be deleted.")
}
}

19
vendor/k8s.io/utils/temp/temptest/doc.go generated vendored
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@ -1,19 +0,0 @@
/*
Copyright 2017 The Kubernetes Authors.
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.
*/
// Package temptest provides utilities for testing temp
// files/directories testing.
package temptest

57
vendor/k8s.io/utils/temp/temptest/example_test.go generated vendored
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@ -1,57 +0,0 @@
/*
Copyright 2017 The Kubernetes Authors.
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.
*/
package temptest
import (
"errors"
"fmt"
"io"
"k8s.io/utils/temp"
)
func TestedCode(dir temp.Directory) error {
f, err := dir.NewFile("filename")
if err != nil {
return err
}
_, err = io.WriteString(f, "Bonjour!")
if err != nil {
return err
}
return dir.Delete()
}
func Example() {
dir := FakeDir{}
err := TestedCode(&dir)
if err != nil {
panic(err)
}
if dir.Deleted == false {
panic(errors.New("Directory should have been deleted"))
}
if dir.Files["filename"] == nil {
panic(errors.New(`"filename" should have been created`))
}
fmt.Println(dir.Files["filename"].Buffer.String())
// Output: Bonjour!
}

52
vendor/k8s.io/utils/temp/temptest/file.go generated vendored
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@ -1,52 +0,0 @@
/*
Copyright 2017 The Kubernetes Authors.
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.
*/
package temptest
import (
"bytes"
"errors"
"io"
)
// FakeFile is an implementation of a WriteCloser, that records what has
// been written in the file (in a bytes.Buffer) and if the file has been
// closed.
type FakeFile struct {
Buffer bytes.Buffer
Closed bool
}
var _ io.WriteCloser = &FakeFile{}
// Write appends the contents of p to the Buffer. If the file has
// already been closed, an error is returned.
func (f *FakeFile) Write(p []byte) (n int, err error) {
if f.Closed {
return 0, errors.New("can't write to closed FakeFile")
}
return f.Buffer.Write(p)
}
// Close records that the file has been closed. If the file has already
// been closed, an error is returned.
func (f *FakeFile) Close() error {
if f.Closed {
return errors.New("FakeFile was closed multiple times")
}
f.Closed = true
return nil
}

56
vendor/k8s.io/utils/temp/temptest/file_test.go generated vendored
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@ -1,56 +0,0 @@
/*
Copyright 2017 The Kubernetes Authors.
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.
*/
package temptest
import (
"io"
"testing"
)
func TestFakeFile(t *testing.T) {
f := &FakeFile{}
n, err := io.WriteString(f, "Bonjour!")
if n != 8 || err != nil {
t.Fatalf(
`WriteString(f, "Bonjour!") = (%v, %v), expected (%v, %v)`,
n, err,
8, nil,
)
}
err = f.Close()
if err != nil {
t.Fatal(err)
}
// File can't be closed twice.
err = f.Close()
if err == nil {
t.Fatal("FakeFile could be closed twice")
}
// File is not writable after close.
n, err = io.WriteString(f, "Bonjour!")
if n != 0 || err == nil {
t.Fatalf(
`WriteString(f, "Bonjour!") = (%v, %v), expected (%v, %v)`,
n, err,
0, "non-nil",
)
}
}