// stepFailureAlerts returns alerts generated from step failures. It applies filtering
// logic specified in the gatekeeper config to ignore some failures.
func (a *Analyzer) stepFailureAlerts(failures []stepFailure) ([]messages.Alert, error) {
ret := []messages.Alert{}
type res struct {
f stepFailure
a *messages.Alert
err error
}
// Might not need full capacity buffer, since some failures are ignored below.
rs := make(chan res, len(failures))
scannedFailures := []stepFailure{}
for _, failure := range failures {
// goroutine/channel because the reasonsForFailure call potentially
// blocks on IO.
if failure.step.Name == "steps" {
// check results to see if it's an array of [4]
// That's a purple failure, which should go to infra/trooper.
log.Infof("steps results: %+v", failure.step)
if len(failure.step.Results) > 0 {
if r, ok := failure.step.Results[0].(float64); ok && r == resInfraFailure {
// TODO: Create a trooper alert about this.
log.Errorf("INFRA FAILURE: %+v", failure)
}
}
continue
// The actual breaking step will appear later.
}
// Check the gatekeeper configs to see if this is ignorable.
if a.excludeFailure(failure.masterName, failure.builderName, failure.step.Name) {
continue
}
// Gets the named revision number from gnumbd metadata.
getCommitPos := func(b messages.Build, name string) (string, bool) {
for _, p := range b.Properties {
if p[0] == name {
s, ok := p[1].(string)
return s, ok
}
}
return "", false
}
scannedFailures = append(scannedFailures, failure)
go func(f stepFailure) {
alr := messages.Alert{
Title: fmt.Sprintf("Builder step failure: %s.%s", f.masterName, f.builderName),
Time: messages.EpochTime(a.Now().Unix()),
Type: "buildfailure",
}
regRanges := []messages.RegressionRange{}
revisionsByRepo := map[string][]string{}
// Get gnumbd sequence numbers for whatever this build pulled in.
chromiumPos, ok := getCommitPos(f.build, "got_revision_cp")
if ok {
regRanges = append(regRanges, messages.RegressionRange{
Repo: "chromium",
Positions: []string{chromiumPos},
})
}
blinkPos, ok := getCommitPos(f.build, "got_webkit_revision_cp")
if ok {
regRanges = append(regRanges, messages.RegressionRange{
Repo: "blink",
Positions: []string{blinkPos},
})
}
v8Pos, ok := getCommitPos(f.build, "got_v8_revision_cp")
if ok {
regRanges = append(regRanges, messages.RegressionRange{
Repo: "v8",
Positions: []string{v8Pos},
})
}
naclPos, ok := getCommitPos(f.build, "got_nacl_revision_cp")
if ok {
regRanges = append(regRanges, messages.RegressionRange{
Repo: "nacl",
Positions: []string{naclPos},
})
}
for _, change := range f.build.SourceStamp.Changes {
revisionsByRepo[change.Repository] = append(revisionsByRepo[change.Repository], change.Revision)
// change.Revision is *not* always a git hash. Sometimes it is a position from gnumbd.
// change.Revision is git hash or gnumbd depending on what exactly? Not obvious at this time.
// A potential problem here is when multiple repos have overlapping gnumbd ranges.
a.revisionSummaries[change.Revision] = messages.RevisionSummary{
GitHash: change.Revision,
Link: change.Revlink,
Description: trunc(change.Comments),
Author: change.Who,
When: change.When,
}
}
for repo, revisions := range revisionsByRepo {
regRanges = append(regRanges, messages.RegressionRange{
Repo: repo,
Revisions: revisions,
})
}
// If the builder has been failing on the same step for multiple builds in a row,
// we should have only one alert but indicate the range of builds affected.
// These are set in FirstFailure and LastFailure.
bf := messages.BuildFailure{
// FIXME: group builders?
Builders: []messages.AlertedBuilder{
{
Name: f.builderName,
URL: client.BuilderURL(f.masterName, f.builderName),
StartTime: f.build.CreatedTimestamp,
FirstFailure: f.build.Number,
LatestFailure: f.build.Number,
},
},
TreeCloser: a.wouldCloseTree(f.masterName, f.builderName, f.step.Name),
RegressionRanges: regRanges,
}
reasons := a.reasonsForFailure(f)
for _, r := range reasons {
bf.Reasons = append(bf.Reasons, messages.Reason{
TestName: r,
Step: f.step.Name,
URL: f.URL(),
})
}
alr.Key = alertKey(f.masterName, f.builderName, f.step.Name)
if len(bf.Reasons) == 0 {
log.Warningf("No reasons for step failure: %s", alr.Key)
bf.Reasons = append(bf.Reasons, messages.Reason{
Step: f.step.Name,
URL: f.URL(),
})
}
alr.Extension = bf
rs <- res{
f: f,
a: &alr,
err: nil,
}
}(failure)
}
for range scannedFailures {
r := <-rs
if r.a != nil {
ret = append(ret, *r.a)
}
}
return ret, nil
}
// stepFailureAlerts returns alerts generated from step failures. It applies filtering
// logic specified in the gatekeeper config to ignore some failures.
func (a *Analyzer) stepFailureAlerts(failures []stepFailure) ([]messages.Alert, error) {
ret := []messages.Alert{}
type res struct {
f stepFailure
a *messages.Alert
err error
}
// Might not need full capacity buffer, since some failures are ignored below.
rs := make(chan res, len(failures))
scannedFailures := []stepFailure{}
for _, failure := range failures {
// goroutine/channel because the reasonsForFailure call potentially
// blocks on IO.
if failure.step.Name == "steps" {
// check results to see if it's an array of [4]
// That's a purple failure, which should go to infra/trooper.
log.Infof("steps results: %+v", failure.step)
if len(failure.step.Results) > 0 {
if r, ok := failure.step.Results[0].(float64); ok && r == resInfraFailure {
// TODO: Create a trooper alert about this.
log.Errorf("INFRA FAILURE: %+v", failure)
}
}
continue
// The actual breaking step will appear later.
}
// Check the gatekeeper configs to see if this is ignorable.
if a.excludeFailure(failure.masterName, failure.builderName, failure.step.Name) {
continue
}
scannedFailures = append(scannedFailures, failure)
go func(f stepFailure) {
alr := messages.Alert{
Title: fmt.Sprintf("Builder step failure: %s.%s", f.masterName, f.builderName),
Time: messages.EpochTime(a.now().Unix()),
Type: "buildfailure",
}
regRanges := []messages.RegressionRange{}
revsByRepo := map[string][]string{}
for _, change := range f.build.SourceStamp.Changes {
// check change.Comments for text like
// "Cr-Commit-Position: refs/heads/master@{#330158}" to pick out revs from git commits.
revsByRepo[change.Repository] = append(revsByRepo[change.Repository], change.Revision)
}
for repo, revs := range revsByRepo {
regRanges = append(regRanges, messages.RegressionRange{
Repo: repo,
Revisions: revs,
})
}
// If the builder has been failing on the same step for multiple builds in a row,
// we should have only one alert but indicate the range of builds affected.
// These are set in FirstFailure and LastFailure.
bf := messages.BuildFailure{
// FIXME: group builders?
Builders: []messages.AlertedBuilder{
{
Name: f.builderName,
URL: client.BuilderURL(f.masterName, f.builderName),
StartTime: f.build.CreatedTimestamp,
FirstFailure: f.build.Number,
LatestFailure: f.build.Number,
},
},
TreeCloser: a.wouldCloseTree(f.masterName, f.builderName, f.step.Name),
RegressionRanges: regRanges,
}
reasons := a.reasonsForFailure(f)
for _, r := range reasons {
bf.Reasons = append(bf.Reasons, messages.Reason{
TestName: r,
Step: f.step.Name,
URL: f.URL(),
})
}
alr.Key = alertKey(f.masterName, f.builderName, f.step.Name)
if len(bf.Reasons) == 0 {
log.Warningf("No reasons for step failure: %s", alr.Key)
bf.Reasons = append(bf.Reasons, messages.Reason{
Step: f.step.Name,
URL: f.URL(),
})
}
alr.Extension = bf
rs <- res{
f: f,
a: &alr,
err: nil,
}
}(failure)
}
for range scannedFailures {
r := <-rs
if r.a != nil {
ret = append(ret, *r.a)
}
}
return ret, nil
}