package random_bugs import ( "math/rand" "strings" "time" "github.com/icrowley/fake" "github.com/MichaelMure/git-bug/bug" "github.com/MichaelMure/git-bug/identity" "github.com/MichaelMure/git-bug/repository" ) type opsGenerator func(bug.Interface, identity.Interface, int64) type Options struct { BugNumber int PersonNumber int MinOp int MaxOp int } func DefaultOptions() Options { return Options{ BugNumber: 15, PersonNumber: 5, MinOp: 3, MaxOp: 20, } } func FillRepo(repo repository.ClockedRepo, bugNumber int) { FillRepoWithSeed(repo, bugNumber, time.Now().UnixNano()) } func FillRepoWithSeed(repo repository.ClockedRepo, bugNumber int, seed int64) { options := DefaultOptions() options.BugNumber = bugNumber CommitRandomBugsWithSeed(repo, options, seed) } func CommitRandomBugs(repo repository.ClockedRepo, opts Options) { CommitRandomBugsWithSeed(repo, opts, time.Now().UnixNano()) } func CommitRandomBugsWithSeed(repo repository.ClockedRepo, opts Options, seed int64) { generateRandomPersons(repo, opts.PersonNumber) bugs := generateRandomBugsWithSeed(opts, seed) for _, b := range bugs { err := b.Commit(repo) if err != nil { panic(err) } } } func generateRandomBugsWithSeed(opts Options, seed int64) []*bug.Bug { rand.Seed(seed) fake.Seed(seed) // At the moment git-bug has a risk of hash collision is simple // operation (like open/close) are made with the same timestamp. // As a temporary workaround, we use here an strictly increasing // timestamp timestamp := time.Now().Unix() opsGenerators := []opsGenerator{ comment, comment, title, labels, open, close, } result := make([]*bug.Bug, opts.BugNumber) for i := 0; i < opts.BugNumber; i++ { addedLabels = []string{} b, _, err := bug.Create( randomPerson(), time.Now().Unix(), fake.Sentence(), paragraphs(), ) if err != nil { panic(err) } nOps := opts.MinOp if opts.MaxOp > opts.MinOp { nOps += rand.Intn(opts.MaxOp - opts.MinOp) } for j := 0; j < nOps; j++ { index := rand.Intn(len(opsGenerators)) opsGenerators[index](b, randomPerson(), timestamp) timestamp++ } result[i] = b } return result } func GenerateRandomOperationPacks(packNumber int, opNumber int) []*bug.OperationPack { return GenerateRandomOperationPacksWithSeed(packNumber, opNumber, time.Now().UnixNano()) } func GenerateRandomOperationPacksWithSeed(packNumber int, opNumber int, seed int64) []*bug.OperationPack { // Note: this is a bit crude, only generate a Create + Comments panic("this piece of code needs to be updated to make sure that the identities " + "are properly commit before usage. That is, generateRandomPersons() need to be called.") rand.Seed(seed) fake.Seed(seed) result := make([]*bug.OperationPack, packNumber) for i := 0; i < packNumber; i++ { opp := &bug.OperationPack{} var op bug.Operation op = bug.NewCreateOp( randomPerson(), time.Now().Unix(), fake.Sentence(), paragraphs(), nil, ) opp.Append(op) for j := 0; j < opNumber-1; j++ { op = bug.NewAddCommentOp( randomPerson(), time.Now().Unix(), paragraphs(), nil, ) opp.Append(op) } result[i] = opp } return result } func person() identity.Interface { return identity.NewIdentity(fake.FullName(), fake.EmailAddress()) } var persons []identity.Interface func generateRandomPersons(repo repository.ClockedRepo, n int) { persons = make([]identity.Interface, n) for i := range persons { p := person() err := p.Commit(repo) if err != nil { panic(err) } persons[i] = p } } func randomPerson() identity.Interface { index := rand.Intn(len(persons)) return persons[index] } func paragraphs() string { p := fake.Paragraphs() return strings.Replace(p, "\t", "\n\n", -1) } func comment(b bug.Interface, p identity.Interface, timestamp int64) { _, _ = bug.AddComment(b, p, timestamp, paragraphs()) } func title(b bug.Interface, p identity.Interface, timestamp int64) { _, _ = bug.SetTitle(b, p, timestamp, fake.Sentence()) } func open(b bug.Interface, p identity.Interface, timestamp int64) { _, _ = bug.Open(b, p, timestamp) } func close(b bug.Interface, p identity.Interface, timestamp int64) { _, _ = bug.Close(b, p, timestamp) } var addedLabels []string func labels(b bug.Interface, p identity.Interface, timestamp int64) { var removed []string nbRemoved := rand.Intn(3) for nbRemoved > 0 && len(addedLabels) > 0 { index := rand.Intn(len(addedLabels)) removed = append(removed, addedLabels[index]) addedLabels[index] = addedLabels[len(addedLabels)-1] addedLabels = addedLabels[:len(addedLabels)-1] nbRemoved-- } var added []string nbAdded := rand.Intn(3) for i := 0; i < nbAdded; i++ { label := fake.Word() added = append(added, label) addedLabels = append(addedLabels, label) } // ignore error // if the randomisation produce no changes, no op // is added to the bug _, _, _ = bug.ChangeLabels(b, p, timestamp, added, removed) }