// newBuildCache returns a buildCache instance for the given
// builder/master/repo combination.
func newBuildCache(master, builder, repo string, db buildbot.DB) (*buildCache, error) {
maxBuild, err := db.GetMaxBuildNumber(master, builder)
if err != nil {
return nil, err
}
return &buildCache{
buildsByCommit: map[string]*buildbot.Build{},
buildsByNumber: map[int]*buildbot.Build{},
db: db,
Builder: builder,
Master: master,
MaxBuildNum: maxBuild,
Repo: repo,
}, nil
}
