func (h *LGTMHandler) removeLGTMIfCancelled(obj *github.MungeObject, comments []*githubapi.IssueComment, events []*githubapi.IssueEvent, reviewers mungerutil.UserSet) {
// Get time when the last (unlabeled, lgtm) event occurred.
addLGTMTime := e.LastEvent(events, e.And{e.AddLabel{}, e.LabelName(lgtmLabel), e.HumanActor()}, nil)
for i := len(comments) - 1; i >= 0; i-- {
comment := comments[i]
if !mungerutil.IsValidUser(comment.User) {
continue
}
if !mungerutil.IsMungeBot(comment.User) && !isReviewer(comment.User, reviewers) {
continue
}
fields := getFields(*comment.Body)
if isLGTMComment(fields) {
// "/lgtm" if commented more recently than "/lgtm cancel"
return
}
if !isCancelComment(fields) {
continue
}
// check if someone manually added the lgtm label after the `/lgtm cancel` comment
// and honor it.
if addLGTMTime != nil && addLGTMTime.After(*comment.CreatedAt) {
return
}
glog.Infof("Removing lgtm label. Reviewer (%s) cancelled", *comment.User.Login)
obj.RemoveLabel(lgtmLabel)
return
}
}
func (h *LGTMHandler) addLGTMIfCommented(obj *github.MungeObject, comments []*githubapi.IssueComment, events []*githubapi.IssueEvent, reviewers mungerutil.UserSet) {
// Get the last time when the someone applied lgtm manually.
removeLGTMTime := e.LastEvent(events, e.And{e.RemoveLabel{}, e.LabelName(lgtmLabel), e.HumanActor()}, nil)
// Assumption: The comments should be sorted (by default from github api) from oldest to latest
for i := len(comments) - 1; i >= 0; i-- {
comment := comments[i]
if !mungerutil.IsValidUser(comment.User) {
continue
}
// TODO: An approver should be acceptable.
// See https://github.com/kubernetes/contrib/pull/1428#discussion_r72563935
if !mungerutil.IsMungeBot(comment.User) && !isReviewer(comment.User, reviewers) {
continue
}
fields := getFields(*comment.Body)
if isCancelComment(fields) {
// "/lgtm cancel" if commented more recently than "/lgtm"
return
}
if !isLGTMComment(fields) {
continue
}
// check if someone manually removed the lgtm label after the `/lgtm` comment
// and honor it.
if removeLGTMTime != nil && removeLGTMTime.After(*comment.CreatedAt) {
return
}
// TODO: support more complex policies for multiple reviewers.
// See https://github.com/kubernetes/contrib/issues/1389#issuecomment-235161164
glog.Infof("Adding lgtm label. Reviewer (%s) LGTM", *comment.User.Login)
obj.AddLabel(lgtmLabel)
return
}
}