Commit 7280c296 authored by ale's avatar ale

Update ai3/go-common

parent 9457727c
Pipeline #10904 failed with stages
in 1 minute and 2 seconds
......@@ -3,7 +3,7 @@ module git.autistici.org/id/keystore
go 1.15
require (
git.autistici.org/ai3/go-common v0.0.0-20210109170950-49f8d26bcc81
git.autistici.org/ai3/go-common v0.0.0-20210118064555-73f00db54723
git.autistici.org/id/go-sso v0.0.0-20181118174541-ad4e62357912
github.com/coreos/go-systemd/v22 v22.1.0
github.com/go-ldap/ldap/v3 v3.2.4
......
......@@ -2,8 +2,8 @@ cloud.google.com/go v0.26.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMT
cloud.google.com/go v0.34.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
contrib.go.opencensus.io/exporter/zipkin v0.1.2 h1:YqE293IZrKtqPnpwDPH/lOqTWD/s3Iwabycam74JV3g=
contrib.go.opencensus.io/exporter/zipkin v0.1.2/go.mod h1:mP5xM3rrgOjpn79MM8fZbj3gsxcuytSqtH0dxSWW1RE=
git.autistici.org/ai3/go-common v0.0.0-20210109170950-49f8d26bcc81 h1:p+NSXGJI+dyXsKHPsyrDeXIDXS0iBqsevv+F1N+eVJA=
git.autistici.org/ai3/go-common v0.0.0-20210109170950-49f8d26bcc81/go.mod h1:nuLJyKZZaC3DBPN4gA1qdGXcm0U5WCcus1z3pI8RdTE=
git.autistici.org/ai3/go-common v0.0.0-20210118064555-73f00db54723 h1:ylA6azCumIJnT7xb5hHrz0At6r1u3zqnugl1gB92KO0=
git.autistici.org/ai3/go-common v0.0.0-20210118064555-73f00db54723/go.mod h1:T8BS+630KLzy30X2lshL98H0NW3Xuyzs8NI9D6C3New=
git.autistici.org/id/go-sso v0.0.0-20181118174541-ad4e62357912 h1:1amb0pZr7c44TXSpFyb8q4J1+Ie+l7K1hYuXVD4zFrY=
git.autistici.org/id/go-sso v0.0.0-20181118174541-ad4e62357912/go.mod h1:B9omXX7rw0qgWdBoF4RZnM7clwEVejoAe8oNJWETBZ0=
github.com/Azure/go-ntlmssp v0.0.0-20200615164410-66371956d46c h1:/IBSNwUN8+eKzUzbJPqhK839ygXJ82sde8x3ogr6R28=
......@@ -38,6 +38,8 @@ github.com/bgentry/speakeasy v0.1.0/go.mod h1:+zsyZBPWlz7T6j88CTgSN5bM796AkVf0kB
github.com/casbin/casbin/v2 v2.1.2/go.mod h1:YcPU1XXisHhLzuxH9coDNf2FbKpjGlbCg3n9yuLkIJQ=
github.com/cenkalti/backoff v2.2.1+incompatible h1:tNowT99t7UNflLxfYYSlKYsBpXdEet03Pg2g16Swow4=
github.com/cenkalti/backoff v2.2.1+incompatible/go.mod h1:90ReRw6GdpyfrHakVjL/QHaoyV4aDUVVkXQJJJ3NXXM=
github.com/cenkalti/backoff/v4 v4.1.0 h1:c8LkOFQTzuO0WBM/ae5HdGQuZPfPxp7lqBRwQRm4fSc=
github.com/cenkalti/backoff/v4 v4.1.0/go.mod h1:scbssz8iZGpm3xbr14ovlUdkxfGXNInqkPWOWmG2CLw=
github.com/census-instrumentation/opencensus-proto v0.2.1/go.mod h1:f6KPmirojxKA12rnyqOA5BBL4O983OfeGPqjHWSTneU=
github.com/cespare/xxhash/v2 v2.1.1 h1:6MnRN8NT7+YBpUIWxHtefFZOKTAPgGjpQSxqLNn0+qY=
github.com/cespare/xxhash/v2 v2.1.1/go.mod h1:VGX0DQ3Q6kWi7AoAeZDth3/j3BFtOZR5XLFGgcrjCOs=
......@@ -47,9 +49,8 @@ github.com/cncf/udpa/go v0.0.0-20191209042840-269d4d468f6f/go.mod h1:M8M6+tZqaGX
github.com/cockroachdb/datadriven v0.0.0-20190809214429-80d97fb3cbaa/go.mod h1:zn76sxSg3SzpJ0PPJaLDCu+Bu0Lg3sKTORVIj19EIF8=
github.com/codahale/hdrhistogram v0.0.0-20161010025455-3a0bb77429bd/go.mod h1:sE/e/2PUdi/liOCUjSTXgM1o87ZssimdTWN964YiIeI=
github.com/coreos/go-semver v0.2.0/go.mod h1:nnelYz7RCh+5ahJtPPxZlU+153eP4D4r3EedlOD2RNk=
github.com/coreos/go-systemd v0.0.0-20180511133405-39ca1b05acc7 h1:u9SHYsPQNyt5tgDm3YN7+9dYrpK96E5wFilTFWIDZOM=
github.com/coreos/go-systemd v0.0.0-20180511133405-39ca1b05acc7/go.mod h1:F5haX7vjVVG0kc13fIWeqUViNPyEJxv/OmvnBo0Yme4=
github.com/coreos/go-systemd v0.0.0-20191104093116-d3cd4ed1dbcf h1:iW4rZ826su+pqaw19uhpSCzhj44qo35pNgKFGqzDKkU=
github.com/coreos/go-systemd v0.0.0-20191104093116-d3cd4ed1dbcf/go.mod h1:F5haX7vjVVG0kc13fIWeqUViNPyEJxv/OmvnBo0Yme4=
github.com/coreos/go-systemd/v22 v22.1.0 h1:kq/SbG2BCKLkDKkjQf5OWwKWUKj1lgs3lFI4PxnR5lg=
github.com/coreos/go-systemd/v22 v22.1.0/go.mod h1:xO0FLkIi5MaZafQlIrOotqXZ90ih+1atmu1JpKERPPk=
github.com/coreos/pkg v0.0.0-20160727233714-3ac0863d7acf/go.mod h1:E3G3o1h8I7cfcXa63jLwjI0eiQQMgzzUDFVpN/nH/eA=
......@@ -78,6 +79,8 @@ github.com/fsnotify/fsnotify v1.4.7/go.mod h1:jwhsz4b93w/PPRr/qN1Yymfu8t87LnFCMo
github.com/ghodss/yaml v1.0.0/go.mod h1:4dBDuWmgqj2HViK6kFavaiC9ZROes6MMH2rRYeMEF04=
github.com/go-asn1-ber/asn1-ber v1.5.1 h1:pDbRAunXzIUXfx4CB2QJFv5IuPiuoW+sWvr/Us009o8=
github.com/go-asn1-ber/asn1-ber v1.5.1/go.mod h1:hEBeB/ic+5LoWskz+yKT7vGhhPYkProFKoKdwZRWMe0=
github.com/go-asn1-ber/asn1-ber v1.5.3 h1:u7utq56RUFiynqUzgVMFDymapcOtQ/MZkh3H4QYkxag=
github.com/go-asn1-ber/asn1-ber v1.5.3/go.mod h1:hEBeB/ic+5LoWskz+yKT7vGhhPYkProFKoKdwZRWMe0=
github.com/go-kit/kit v0.8.0/go.mod h1:xBxKIO96dXMWWy0MnWVtmwkA9/13aqxPnvrjFYMA2as=
github.com/go-kit/kit v0.9.0/go.mod h1:xBxKIO96dXMWWy0MnWVtmwkA9/13aqxPnvrjFYMA2as=
github.com/go-kit/kit v0.10.0/go.mod h1:xUsJbQ/Fp4kEt7AFgCuvyX4a71u8h9jB8tj/ORgOZ7o=
......@@ -455,8 +458,6 @@ google.golang.org/protobuf v1.23.1-0.20200526195155-81db48ad09cc/go.mod h1:EGpAD
google.golang.org/protobuf v1.25.0 h1:Ejskq+SyPohKW+1uil0JJMtmHCgJPJ/qWTxr8qp+R4c=
google.golang.org/protobuf v1.25.0/go.mod h1:9JNX74DMeImyA3h4bdi1ymwjUzf21/xIlbajtzgsN7c=
gopkg.in/alecthomas/kingpin.v2 v2.2.6/go.mod h1:FMv+mEhP44yOT+4EoQTLFTRgOQ1FBLkstjWtayDeSgw=
gopkg.in/asn1-ber.v1 v1.0.0-20181015200546-f715ec2f112d h1:TxyelI5cVkbREznMhfzycHdkp5cLA7DpE+GKjSslYhM=
gopkg.in/asn1-ber.v1 v1.0.0-20181015200546-f715ec2f112d/go.mod h1:cuepJuh7vyXfUyUwEgHQXw849cJrilpS5NeIjOWESAw=
gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15 h1:YR8cESwS4TdDjEe65xsg0ogRM/Nc3DYOhEAlW+xobZo=
......
......@@ -16,7 +16,7 @@ import (
"strings"
"time"
"github.com/cenkalti/backoff"
"github.com/cenkalti/backoff/v4"
)
// Our own narrow logger interface.
......
......@@ -6,9 +6,10 @@ require (
contrib.go.opencensus.io/exporter/zipkin v0.1.2
github.com/amoghe/go-crypt v0.0.0-20191109212615-b2ff80594b7f
github.com/bbrks/wrap/v2 v2.5.0
github.com/cenkalti/backoff v2.2.1+incompatible
github.com/coreos/go-systemd v0.0.0-20191104093116-d3cd4ed1dbcf
github.com/cenkalti/backoff/v4 v4.1.0
github.com/coreos/go-systemd/v22 v22.1.0
github.com/emersion/go-textwrapper v0.0.0-20200911093747-65d896831594
github.com/go-asn1-ber/asn1-ber v1.5.3
github.com/go-ldap/ldap/v3 v3.2.4
github.com/gofrs/flock v0.8.0 // indirect
github.com/google/go-cmp v0.5.4
......@@ -18,11 +19,9 @@ require (
github.com/openzipkin/zipkin-go v0.2.5
github.com/prometheus/client_golang v1.9.0
github.com/russross/blackfriday/v2 v2.1.0
github.com/shurcooL/sanitized_anchor_name v1.0.0 // indirect
github.com/theckman/go-flock v0.8.0
github.com/tstranex/u2f v1.0.0
go.opencensus.io v0.22.5
golang.org/x/crypto v0.0.0-20201221181555-eec23a3978ad
golang.org/x/sync v0.0.0-20201207232520-09787c993a3a
gopkg.in/asn1-ber.v1 v1.0.0-20181015200546-f715ec2f112d
)
......@@ -7,7 +7,7 @@ import (
"net/url"
"time"
"github.com/cenkalti/backoff"
"github.com/cenkalti/backoff/v4"
"github.com/go-ldap/ldap/v3"
"github.com/prometheus/client_golang/prometheus"
"go.opencensus.io/trace"
......
......@@ -16,7 +16,7 @@ import (
"time"
"git.autistici.org/ai3/go-common/tracing"
"github.com/coreos/go-systemd/daemon"
"github.com/coreos/go-systemd/v22/daemon"
"github.com/prometheus/client_golang/prometheus"
"github.com/prometheus/client_golang/prometheus/promhttp"
)
......
......@@ -14,7 +14,7 @@ import (
"sync/atomic"
"time"
"github.com/coreos/go-systemd/activation"
"github.com/coreos/go-systemd/v22/activation"
"github.com/prometheus/client_golang/prometheus"
"github.com/theckman/go-flock"
)
......
......@@ -9,7 +9,9 @@ The retries exponentially increase and stop increasing when a certain threshold
## Usage
See https://godoc.org/github.com/cenkalti/backoff#pkg-examples
Import path is `github.com/cenkalti/backoff/v4`. Please note the version part at the end.
Use https://pkg.go.dev/github.com/cenkalti/backoff/v4 to view the documentation.
## Contributing
......@@ -17,7 +19,7 @@ See https://godoc.org/github.com/cenkalti/backoff#pkg-examples
* Please don't send a PR without opening an issue and discussing it first.
* If proposed change is not a common use case, I will probably not accept it.
[godoc]: https://godoc.org/github.com/cenkalti/backoff
[godoc]: https://pkg.go.dev/github.com/cenkalti/backoff/v4
[godoc image]: https://godoc.org/github.com/cenkalti/backoff?status.png
[travis]: https://travis-ci.org/cenkalti/backoff
[travis image]: https://travis-ci.org/cenkalti/backoff.png?branch=master
......@@ -27,4 +29,4 @@ See https://godoc.org/github.com/cenkalti/backoff#pkg-examples
[google-http-java-client]: https://github.com/google/google-http-java-client/blob/da1aa993e90285ec18579f1553339b00e19b3ab5/google-http-client/src/main/java/com/google/api/client/util/ExponentialBackOff.java
[exponential backoff wiki]: http://en.wikipedia.org/wiki/Exponential_backoff
[advanced example]: https://godoc.org/github.com/cenkalti/backoff#example_
[advanced example]: https://pkg.go.dev/github.com/cenkalti/backoff/v4?tab=doc#pkg-examples
......@@ -7,7 +7,7 @@ import (
// BackOffContext is a backoff policy that stops retrying after the context
// is canceled.
type BackOffContext interface {
type BackOffContext interface { // nolint: golint
BackOff
Context() context.Context
}
......@@ -20,7 +20,7 @@ type backOffContext struct {
// WithContext returns a BackOffContext with context ctx
//
// ctx must not be nil
func WithContext(b BackOff, ctx context.Context) BackOffContext {
func WithContext(b BackOff, ctx context.Context) BackOffContext { // nolint: golint
if ctx == nil {
panic("nil context")
}
......@@ -38,11 +38,14 @@ func WithContext(b BackOff, ctx context.Context) BackOffContext {
}
}
func ensureContext(b BackOff) BackOffContext {
func getContext(b BackOff) context.Context {
if cb, ok := b.(BackOffContext); ok {
return cb
return cb.Context()
}
return WithContext(b, context.Background())
if tb, ok := b.(*backOffTries); ok {
return getContext(tb.delegate)
}
return context.Background()
}
func (b *backOffContext) Context() context.Context {
......@@ -56,7 +59,7 @@ func (b *backOffContext) NextBackOff() time.Duration {
default:
}
next := b.BackOff.NextBackOff()
if deadline, ok := b.ctx.Deadline(); ok && deadline.Sub(time.Now()) < next {
if deadline, ok := b.ctx.Deadline(); ok && deadline.Sub(time.Now()) < next { // nolint: gosimple
return Stop
}
return next
......
......@@ -56,9 +56,10 @@ type ExponentialBackOff struct {
RandomizationFactor float64
Multiplier float64
MaxInterval time.Duration
// After MaxElapsedTime the ExponentialBackOff stops.
// After MaxElapsedTime the ExponentialBackOff returns Stop.
// It never stops if MaxElapsedTime == 0.
MaxElapsedTime time.Duration
Stop time.Duration
Clock Clock
currentInterval time.Duration
......@@ -87,6 +88,7 @@ func NewExponentialBackOff() *ExponentialBackOff {
Multiplier: DefaultMultiplier,
MaxInterval: DefaultMaxInterval,
MaxElapsedTime: DefaultMaxElapsedTime,
Stop: Stop,
Clock: SystemClock,
}
b.Reset()
......@@ -103,20 +105,23 @@ func (t systemClock) Now() time.Time {
var SystemClock = systemClock{}
// Reset the interval back to the initial retry interval and restarts the timer.
// Reset must be called before using b.
func (b *ExponentialBackOff) Reset() {
b.currentInterval = b.InitialInterval
b.startTime = b.Clock.Now()
}
// NextBackOff calculates the next backoff interval using the formula:
// Randomized interval = RetryInterval +/- (RandomizationFactor * RetryInterval)
// Randomized interval = RetryInterval * (1 ± RandomizationFactor)
func (b *ExponentialBackOff) NextBackOff() time.Duration {
// Make sure we have not gone over the maximum elapsed time.
if b.MaxElapsedTime != 0 && b.GetElapsedTime() > b.MaxElapsedTime {
return Stop
elapsed := b.GetElapsedTime()
next := getRandomValueFromInterval(b.RandomizationFactor, rand.Float64(), b.currentInterval)
b.incrementCurrentInterval()
if b.MaxElapsedTime != 0 && elapsed+next > b.MaxElapsedTime {
return b.Stop
}
defer b.incrementCurrentInterval()
return getRandomValueFromInterval(b.RandomizationFactor, rand.Float64(), b.currentInterval)
return next
}
// GetElapsedTime returns the elapsed time since an ExponentialBackOff instance
......@@ -140,7 +145,7 @@ func (b *ExponentialBackOff) incrementCurrentInterval() {
}
// Returns a random value from the following interval:
// [randomizationFactor * currentInterval, randomizationFactor * currentInterval].
// [currentInterval - randomizationFactor * currentInterval, currentInterval + randomizationFactor * currentInterval].
func getRandomValueFromInterval(randomizationFactor, random float64, currentInterval time.Duration) time.Duration {
var delta = randomizationFactor * float64(currentInterval)
var minInterval = float64(currentInterval) - delta
......
module github.com/cenkalti/backoff/v4
go 1.13
package backoff
import "time"
import (
"errors"
"time"
)
// An Operation is executing by Retry() or RetryNotify().
// The operation will be retried using a backoff policy if it returns an error.
......@@ -21,16 +24,31 @@ type Notify func(error, time.Duration)
//
// Retry sleeps the goroutine for the duration returned by BackOff after a
// failed operation returns.
func Retry(o Operation, b BackOff) error { return RetryNotify(o, b, nil) }
func Retry(o Operation, b BackOff) error {
return RetryNotify(o, b, nil)
}
// RetryNotify calls notify function with the error and wait duration
// for each failed attempt before sleep.
func RetryNotify(operation Operation, b BackOff, notify Notify) error {
return RetryNotifyWithTimer(operation, b, notify, nil)
}
// RetryNotifyWithTimer calls notify function with the error and wait duration using the given Timer
// for each failed attempt before sleep.
// A default timer that uses system timer is used when nil is passed.
func RetryNotifyWithTimer(operation Operation, b BackOff, notify Notify, t Timer) error {
var err error
var next time.Duration
var t *time.Timer
if t == nil {
t = &defaultTimer{}
}
defer func() {
t.Stop()
}()
cb := ensureContext(b)
ctx := getContext(b)
b.Reset()
for {
......@@ -38,11 +56,12 @@ func RetryNotify(operation Operation, b BackOff, notify Notify) error {
return nil
}
if permanent, ok := err.(*PermanentError); ok {
var permanent *PermanentError
if errors.As(err, &permanent) {
return permanent.Err
}
if next = cb.NextBackOff(); next == Stop {
if next = b.NextBackOff(); next == Stop {
return err
}
......@@ -50,17 +69,12 @@ func RetryNotify(operation Operation, b BackOff, notify Notify) error {
notify(err, next)
}
if t == nil {
t = time.NewTimer(next)
defer t.Stop()
} else {
t.Reset(next)
}
t.Start(next)
select {
case <-cb.Context().Done():
return err
case <-t.C:
case <-ctx.Done():
return ctx.Err()
case <-t.C():
}
}
}
......@@ -74,8 +88,20 @@ func (e *PermanentError) Error() string {
return e.Err.Error()
}
func (e *PermanentError) Unwrap() error {
return e.Err
}
func (e *PermanentError) Is(target error) bool {
_, ok := target.(*PermanentError)
return ok
}
// Permanent wraps the given err in a *PermanentError.
func Permanent(err error) *PermanentError {
func Permanent(err error) error {
if err == nil {
return nil
}
return &PermanentError{
Err: err,
}
......
package backoff
import (
"context"
"sync"
"time"
)
......@@ -12,7 +13,9 @@ import (
type Ticker struct {
C <-chan time.Time
c chan time.Time
b BackOffContext
b BackOff
ctx context.Context
timer Timer
stop chan struct{}
stopOnce sync.Once
}
......@@ -24,12 +27,23 @@ type Ticker struct {
// provided backoff policy (notably calling NextBackOff or Reset)
// while the ticker is running.
func NewTicker(b BackOff) *Ticker {
return NewTickerWithTimer(b, &defaultTimer{})
}
// NewTickerWithTimer returns a new Ticker with a custom timer.
// A default timer that uses system timer is used when nil is passed.
func NewTickerWithTimer(b BackOff, timer Timer) *Ticker {
if timer == nil {
timer = &defaultTimer{}
}
c := make(chan time.Time)
t := &Ticker{
C: c,
c: c,
b: ensureContext(b),
stop: make(chan struct{}),
C: c,
c: c,
b: b,
ctx: getContext(b),
timer: timer,
stop: make(chan struct{}),
}
t.b.Reset()
go t.run()
......@@ -59,7 +73,7 @@ func (t *Ticker) run() {
case <-t.stop:
t.c = nil // Prevent future ticks from being sent to the channel.
return
case <-t.b.Context().Done():
case <-t.ctx.Done():
return
}
}
......@@ -78,5 +92,6 @@ func (t *Ticker) send(tick time.Time) <-chan time.Time {
return nil
}
return time.After(next)
t.timer.Start(next)
return t.timer.C()
}
package backoff
import "time"
type Timer interface {
Start(duration time.Duration)
Stop()
C() <-chan time.Time
}
// defaultTimer implements Timer interface using time.Timer
type defaultTimer struct {
timer *time.Timer
}
// C returns the timers channel which receives the current time when the timer fires.
func (t *defaultTimer) C() <-chan time.Time {
return t.timer.C
}
// Start starts the timer to fire after the given duration
func (t *defaultTimer) Start(duration time.Duration) {
if t.timer == nil {
t.timer = time.NewTimer(duration)
} else {
t.timer.Reset(duration)
}
}
// Stop is called when the timer is not used anymore and resources may be freed.
func (t *defaultTimer) Stop() {
if t.timer != nil {
t.timer.Stop()
}
}
......@@ -20,6 +20,9 @@ type backOffTries struct {
}
func (b *backOffTries) NextBackOff() time.Duration {
if b.maxTries == 0 {
return Stop
}
if b.maxTries > 0 {
if b.maxTries <= b.numTries {
return Stop
......
Apache License
Version 2.0, January 2004
http://www.apache.org/licenses/
TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
1. Definitions.
"License" shall mean the terms and conditions for use, reproduction, and
distribution as defined by Sections 1 through 9 of this document.
"Licensor" shall mean the copyright owner or entity authorized by the copyright
owner that is granting the License.
"Legal Entity" shall mean the union of the acting entity and all other entities
that control, are controlled by, or are under common control with that entity.
For the purposes of this definition, "control" means (i) the power, direct or
indirect, to cause the direction or management of such entity, whether by
contract or otherwise, or (ii) ownership of fifty percent (50%) or more of the
outstanding shares, or (iii) beneficial ownership of such entity.
"You" (or "Your") shall mean an individual or Legal Entity exercising
permissions granted by this License.
"Source" form shall mean the preferred form for making modifications, including
but not limited to software source code, documentation source, and configuration
files.
"Object" form shall mean any form resulting from mechanical transformation or
translation of a Source form, including but not limited to compiled object code,
generated documentation, and conversions to other media types.
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