// ingestBuild encapsulates many of the steps of ingesting a build:
// - Record the mapping between the codename (build.Builder) and the internal target name.
// - If no matching build exists, assign a new build number for this build and insert it.
// - Otherwise, update the existing build to match the given build.
func ingestBuild(build *buildbot.Build, commitHash, target string) error {
// Store build.Builder (the codename) with its pair build.Target.Name in a local leveldb to serve redirects.
if err := codenameDB.Put([]byte(build.Builder), []byte(target), nil); err != nil {
glog.Errorf("Failed to write codename to data store: %s", err)
}
buildNumber, err := db.GetBuildNumberForCommit(build.Master, build.Builder, commitHash)
if err != nil {
return fmt.Errorf("Failed to find the build in the database: %s", err)
}
glog.Infof("GetBuildForCommit at hash: %s returned %d", commitHash, buildNumber)
var cachedBuild *buildbot.Build
if buildNumber != -1 {
cachedBuild, err = db.GetBuildFromDB(build.Master, build.Builder, buildNumber)
if err != nil {
return fmt.Errorf("Failed to retrieve build from database: %s", err)
}
}
if cachedBuild == nil {
// This is a new build we've never seen before, so add it to the buildbot database.
// TODO(benjaminwagner): This logic won't work well for concurrent requests. Revisit
// after borenet's "giant datahopper change."
// First calculate a new unique build.Number.
number, err := db.GetMaxBuildNumber(build.Master, build.Builder)
if err != nil {
return fmt.Errorf("Failed to find next build number: %s", err)
}
build.Number = number + 1
glog.Infof("Writing new build to the database: %s %d", build.Builder, build.Number)
} else {
// If the state of the build has changed then write it to the buildbot database.
glog.Infof("Writing updated build to the database: %s %d", build.Builder, build.Number)
}
if err := buildbot.IngestBuild(db, build, repos); err != nil {
return fmt.Errorf("Failed to ingest build: %s", err)
}
return nil
}
