コード例 #1
0
ファイル: blunderbuss.go プロジェクト: yujuhong/contrib
// MungePullRequest is the workhorse the will actually make updates to the PR
func (b *BlunderbussMunger) MungePullRequest(config *github_util.Config, pr *github.PullRequest, issue *github.Issue, commits []github.RepositoryCommit, events []github.IssueEvent) {
	if !b.blunderbussReassign && issue.Assignee != nil {
		glog.V(6).Infof("skipping %v: reassign: %v assignee: %v", *pr.Number, b.blunderbussReassign, describeUser(issue.Assignee))
		return
	}
	potentialOwners := weightMap{}
	weightSum := int64(0)
	for _, commit := range commits {
		if commit.Author == nil || commit.Author.Login == nil || commit.SHA == nil {
			glog.Warningf("Skipping invalid commit for %d: %#v", *pr.Number, commit)
			continue
		}
		for _, file := range commit.Files {
			fileWeight := int64(1)
			if file.Changes != nil && *file.Changes != 0 {
				fileWeight = int64(*file.Changes)
			}
			// Judge file size on a log scale-- effectively this
			// makes three buckets, we shouldn't have many 10k+
			// line changes.
			fileWeight = int64(math.Log10(float64(fileWeight))) + 1
			fileOwners := b.config.findOwners(*file.Filename)
			if len(fileOwners) == 0 {
				glog.Warningf("Couldn't find an owner for: %s", *file.Filename)
			}
			for owner, ownerWeight := range fileOwners {
				if owner == *pr.User.Login {
					continue
				}
				potentialOwners[owner] = potentialOwners[owner] + fileWeight*ownerWeight
				weightSum += fileWeight * ownerWeight
			}
		}
	}
	if len(potentialOwners) == 0 {
		glog.Errorf("No owners found for PR %d", *pr.Number)
		return
	}
	glog.V(4).Infof("Weights: %#v\nSum: %v", potentialOwners, weightSum)

	if issue.Assignee != nil {
		cur := *issue.Assignee.Login
		glog.Infof("Current assignee %v has a %02.2f%% chance of having been chosen", cur, 100.0*float64(potentialOwners[cur])/float64(weightSum))
	}
	selection := rand.Int63n(weightSum)
	owner := ""
	for o, w := range potentialOwners {
		owner = o
		selection -= w
		if selection <= 0 {
			break
		}
	}
	glog.Infof("Assigning %v to %v (previously assigned to %v)", *pr.Number, owner, describeUser(issue.Assignee))
	config.AssignPR(*pr.Number, owner)
}