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Fix Daylight saving transition handling #7894

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merged 4 commits into from
May 12, 2020
Merged

Fix Daylight saving transition handling #7894

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fc2e671
tests for periodic job scheduling and DST
May 7, 2020
702d69f
Update cronexpr to point to hashicorp/cronexpr
May 7, 2020
6319db4
Update current DST and some code style issues
May 7, 2020
1e7ebf5
vendor: use tagged cronexpr, v1.1.0
May 12, 2020
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2 changes: 1 addition & 1 deletion api/go.mod
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Original file line number Diff line number Diff line change
Expand Up @@ -5,8 +5,8 @@ go 1.12
require (
github.com/davecgh/go-spew v1.1.1 // indirect
github.com/docker/go-units v0.3.3
github.com/gorhill/cronexpr v0.0.0-20180427100037-88b0669f7d75
github.com/gorilla/websocket v1.4.1
github.com/hashicorp/cronexpr v1.1.0
github.com/hashicorp/go-cleanhttp v0.5.1
github.com/hashicorp/go-rootcerts v1.0.2
github.com/kr/pretty v0.1.0
Expand Down
6 changes: 4 additions & 2 deletions api/go.sum
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Original file line number Diff line number Diff line change
Expand Up @@ -4,10 +4,12 @@ github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c
github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
github.com/docker/go-units v0.3.3 h1:Xk8S3Xj5sLGlG5g67hJmYMmUgXv5N4PhkjJHHqrwnTk=
github.com/docker/go-units v0.3.3/go.mod h1:fgPhTUdO+D/Jk86RDLlptpiXQzgHJF7gydDDbaIK4Dk=
github.com/gorhill/cronexpr v0.0.0-20180427100037-88b0669f7d75 h1:f0n1xnMSmBLzVfsMMvriDyA75NB/oBgILX2GcHXIQzY=
github.com/gorhill/cronexpr v0.0.0-20180427100037-88b0669f7d75/go.mod h1:g2644b03hfBX9Ov0ZBDgXXens4rxSxmqFBbhvKv2yVA=
github.com/gorilla/websocket v1.4.1 h1:q7AeDBpnBk8AogcD4DSag/Ukw/KV+YhzLj2bP5HvKCM=
github.com/gorilla/websocket v1.4.1/go.mod h1:YR8l580nyteQvAITg2hZ9XVh4b55+EU/adAjf1fMHhE=
github.com/hashicorp/cronexpr v0.0.0-20200507212857-921335d977b6 h1:hMI/9mZ+/xcLlMG1VjW/KwScPOJRDyY30b4aUzxfz0g=
github.com/hashicorp/cronexpr v0.0.0-20200507212857-921335d977b6/go.mod h1:P4wA0KBl9C5q2hABiMO7cp6jcIg96CDh1Efb3g1PWA4=
github.com/hashicorp/cronexpr v1.1.0 h1:dnNsWtH0V2ReN7JccYe8m//Bj14+PjJDntR1dz0Cixk=
github.com/hashicorp/cronexpr v1.1.0/go.mod h1:P4wA0KBl9C5q2hABiMO7cp6jcIg96CDh1Efb3g1PWA4=
github.com/hashicorp/go-cleanhttp v0.5.1 h1:dH3aiDG9Jvb5r5+bYHsikaOUIpcM0xvgMXVoDkXMzJM=
github.com/hashicorp/go-cleanhttp v0.5.1/go.mod h1:JpRdi6/HCYpAwUzNwuwqhbovhLtngrth3wmdIIUrZ80=
github.com/hashicorp/go-rootcerts v1.0.2 h1:jzhAVGtqPKbwpyCPELlgNWhE1znq+qwJtW5Oi2viEzc=
Expand Down
9 changes: 6 additions & 3 deletions api/jobs.go
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Original file line number Diff line number Diff line change
Expand Up @@ -7,7 +7,7 @@ import (
"strconv"
"time"

"github.com/gorhill/cronexpr"
"github.com/hashicorp/cronexpr"
)

const (
Expand Down Expand Up @@ -648,9 +648,11 @@ func (p *PeriodicConfig) Canonicalize() {
// passed time.
func (p *PeriodicConfig) Next(fromTime time.Time) (time.Time, error) {
if *p.SpecType == PeriodicSpecCron {
if e, err := cronexpr.Parse(*p.Spec); err == nil {
return cronParseNext(e, fromTime, *p.Spec)
e, err := cronexpr.Parse(*p.Spec)
if err != nil {
return time.Time{}, fmt.Errorf("failed parsing cron expression %q: %v", *p.Spec, err)
}
return cronParseNext(e, fromTime, *p.Spec)
}

return time.Time{}, nil
Expand All @@ -670,6 +672,7 @@ func cronParseNext(e *cronexpr.Expression, fromTime time.Time, spec string) (t t

return e.Next(fromTime), nil
}

func (p *PeriodicConfig) GetLocation() (*time.Location, error) {
if p.TimeZone == nil || *p.TimeZone == "" {
return time.UTC, nil
Expand Down
24 changes: 9 additions & 15 deletions nomad/periodic_test.go
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Original file line number Diff line number Diff line change
Expand Up @@ -16,6 +16,7 @@ import (
"github.com/hashicorp/nomad/nomad/structs"
"github.com/hashicorp/nomad/testutil"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
)

type MockJobEvalDispatcher struct {
Expand Down Expand Up @@ -173,29 +174,22 @@ func TestPeriodicDispatch_Add_UpdateJob(t *testing.T) {
t.Parallel()
p, _ := testPeriodicDispatcher(t)
job := mock.PeriodicJob()
if err := p.Add(job); err != nil {
t.Fatalf("Add failed %v", err)
}
err := p.Add(job)
require.NoError(t, err)

tracked := p.Tracked()
if len(tracked) != 1 {
t.Fatalf("Add didn't track the job: %v", tracked)
}
require.Lenf(t, tracked, 1, "did not track the job")

// Update the job and add it again.
job.Periodic.Spec = "foo"
if err := p.Add(job); err != nil {
t.Fatalf("Add failed %v", err)
}
err = p.Add(job)
require.Error(t, err)
require.Contains(t, err.Error(), "failed parsing cron expression")

tracked = p.Tracked()
if len(tracked) != 1 {
t.Fatalf("Add didn't update: %v", tracked)
}
require.Lenf(t, tracked, 1, "did not update")

if !reflect.DeepEqual(job, tracked[0]) {
t.Fatalf("Add didn't properly update: got %v; want %v", tracked[0], job)
}
require.Equalf(t, job, tracked[0], "add did not properly update")
}

func TestPeriodicDispatch_Add_Remove_Namespaced(t *testing.T) {
Expand Down
8 changes: 5 additions & 3 deletions nomad/structs/structs.go
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Original file line number Diff line number Diff line change
Expand Up @@ -23,7 +23,7 @@ import (
"strings"
"time"

"github.com/gorhill/cronexpr"
"github.com/hashicorp/cronexpr"
"github.com/hashicorp/go-msgpack/codec"
hcodec "github.com/hashicorp/go-msgpack/codec"
"github.com/hashicorp/go-multierror"
Expand Down Expand Up @@ -4425,9 +4425,11 @@ func CronParseNext(e *cronexpr.Expression, fromTime time.Time, spec string) (t t
func (p *PeriodicConfig) Next(fromTime time.Time) (time.Time, error) {
switch p.SpecType {
case PeriodicSpecCron:
if e, err := cronexpr.Parse(p.Spec); err == nil {
return CronParseNext(e, fromTime, p.Spec)
e, err := cronexpr.Parse(p.Spec)
if err != nil {
return time.Time{}, fmt.Errorf("failed parsing cron expression: %q: %v", p.Spec, err)
}
return CronParseNext(e, fromTime, p.Spec)
case PeriodicSpecTest:
split := strings.Split(p.Spec, ",")
if len(split) == 1 && split[0] == "" {
Expand Down
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