/
events.go
231 lines (212 loc) · 6.99 KB
/
events.go
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package events
import (
"context"
"fmt"
"strconv"
"time"
"github.com/Sirupsen/logrus"
"github.com/bradleyfalzon/maintainer.me/db"
"github.com/google/go-github/github"
"github.com/pkg/errors"
)
type Events []*Event
func ListNewEvents(ctx context.Context, logger *logrus.Entry, client *github.Client, githubUser string, lastCreatedAt time.Time) (events Events, pollInterval time.Duration, err error) {
opt := github.ListOptions{Page: 1}
ListEvents:
for {
start := time.Now()
pagedEvents, response, err := client.Activity.ListEventsReceivedByUser(ctx, githubUser, false, &opt)
if err != nil {
return nil, 0, errors.Wrapf(err, "could not get GitHub events for user %q", githubUser)
}
logger.Debugf("polled events page %v in %v", opt.Page, time.Since(start))
// Use the etag and poll from last page
pollInt, err := strconv.ParseInt(response.Response.Header.Get("X-Poll-Interval"), 10, 32)
if err != nil {
return nil, 0, errors.Wrap(err, "could not parse GitHub's X-Poll-Interval header")
}
pollInterval = time.Duration(pollInt) * time.Second
for _, event := range pagedEvents {
// I'm worried we could lose events here, I need get only new events
// but if two events happen in the same second, but we poll after
// the first event happens, but before the second, and then filter out
// all events that happen before or at that second - we'll skip that
// second event. Better skipping an event than duplicating it.
//
// Alternatively, we could use the Event's ID and cast to int.
if haveObserved(lastCreatedAt, event.GetCreatedAt()) {
// We've already observed this event, assume the list is sorted
// in reverse chronological order and therefore all remaining events
// have also been observed.
break ListEvents
}
parsedEvent, err := ParseEvent(event)
if err != nil {
return nil, 0, err
}
events = append(events, parsedEvent)
}
if response.NextPage == 0 {
break
}
opt.Page = response.NextPage
}
return events, pollInterval, err
}
func haveObserved(observed, query time.Time) bool {
return !observed.IsZero() && (query.Before(observed) || query.Equal(observed))
}
func (e Events) Filter(filters []db.Filter, defaultDiscard bool) {
for _, event := range e {
event.Filter(filters, defaultDiscard)
}
}
type Event struct {
RawEvent *github.Event
CreatedAt time.Time // CreatedAt is the time the event was created.
Type string // Type such as "CommitCommentEvent".
Public bool // Public is whether GitHub event was public.
// Discarded is true when an event has been filtered and should be ignored.
Discarded bool
Actor string // Actor is the person who did an action, such as "bradleyfalzon".
Action string // Action is the action performed on a subject, such as "commented".
Subject string // Subject is something that an action was performed on, such as "golang/go".
Title string // Title is a short description of the event, such as "[golang/go] bradleyfalzon commented on abcdef1234"
Body string // Body contains more context and may be blank.
}
func ParseEvent(ghe *github.Event) (*Event, error) {
payload, err := ghe.ParsePayload()
if err != nil {
return nil, errors.Wrap(err, "could not parse event payload")
}
e := &Event{
RawEvent: ghe,
CreatedAt: ghe.GetCreatedAt(),
Type: ghe.GetType(),
Public: ghe.GetPublic(),
}
switch p := payload.(type) {
case *github.CommitCommentEvent:
e.Actor = ghe.Actor.GetLogin()
e.Action = "commented"
e.Subject = p.Comment.GetCommitID()
e.Body = p.Comment.GetBody()
e.Title = fmt.Sprintf("[%s] %s %s on %s", ghe.Repo.GetName(), e.Actor, e.Action, e.Subject)
case *github.CreateEvent:
e.Actor = ghe.Actor.GetLogin()
e.Action = "created " + p.GetRefType()
e.Subject = p.GetRef()
if e.Subject == "" {
e.Subject = ghe.Repo.GetName()
}
e.Title = fmt.Sprintf("[%s] %s %s %s", ghe.Repo.GetName(), e.Actor, e.Action, e.Subject)
case *github.DeleteEvent:
// TODO
case *github.DeploymentEvent:
// TODO
case *github.DeploymentStatusEvent:
// TODO
case *github.ForkEvent:
e.Actor = ghe.Actor.GetLogin()
e.Action = "forked"
e.Subject = ghe.Repo.GetName()
e.Title = fmt.Sprintf("[%s] %s %s repository", ghe.Repo.GetName(), e.Actor, e.Action)
case *github.GollumEvent:
e.Actor = ghe.Actor.GetLogin()
e.Action = "edited"
e.Subject = ghe.Repo.GetName()
//e.Body = p.Issue.GetBody()
e.Title = fmt.Sprintf("[%s] %s %s wiki on %s", ghe.Repo.GetName(), e.Actor, e.Action, e.Subject)
case *github.InstallationEvent:
// TODO
case *github.InstallationRepositoriesEvent:
// TODO
case *github.IssueCommentEvent:
e.Actor = ghe.Actor.GetLogin()
e.Action = p.GetAction()
var verb string
switch p.GetAction() {
case "created":
verb = "commented on"
case "edited comment in":
verb = "edited comment in"
case "deleted":
verb = "deleted comment in"
default:
}
e.Subject = fmt.Sprintf("%s (#%d)", p.Issue.GetTitle(), p.Issue.GetNumber())
e.Body = p.Comment.GetBody()
e.Title = fmt.Sprintf("[%s] %s %s %s", ghe.Repo.GetName(), e.Actor, verb, e.Subject)
case *github.IssuesEvent:
e.Actor = ghe.Actor.GetLogin()
e.Action = p.GetAction()
e.Subject = fmt.Sprintf("%s (#%d)", p.Issue.GetTitle(), p.Issue.GetNumber())
e.Body = p.Issue.GetBody()
e.Title = fmt.Sprintf("[%s] %s %s %s", ghe.Repo.GetName(), e.Actor, e.Action, e.Subject)
case *github.LabelEvent:
// TODO
case *github.MemberEvent:
// TODO
case *github.MembershipEvent:
// TODO
case *github.MilestoneEvent:
// TODO
case *github.OrganizationEvent:
// TODO
case *github.OrgBlockEvent:
// TODO
case *github.PageBuildEvent:
// TODO
case *github.PingEvent:
// TODO
case *github.ProjectEvent:
// TODO
case *github.ProjectCardEvent:
// TODO
case *github.ProjectColumnEvent:
// TODO
case *github.PublicEvent:
// TODO
case *github.PullRequestEvent:
e.Actor = ghe.Actor.GetLogin()
e.Action = p.GetAction()
e.Subject = fmt.Sprintf("%s (#%d)", p.PullRequest.GetTitle(), p.PullRequest.GetNumber())
e.Body = p.PullRequest.GetBody()
e.Title = fmt.Sprintf("[%s] %s %s %s", ghe.Repo.GetName(), e.Actor, e.Action, e.Subject)
case *github.PullRequestReviewEvent:
// TODO
case *github.PullRequestReviewCommentEvent:
// TODO
case *github.PushEvent:
e.Actor = ghe.Actor.GetLogin()
e.Action = "pushed"
e.Subject = fmt.Sprintf("%s %s", ghe.Repo.GetName(), p.GetRef())
//e.Body = p.Issue.GetBody()
e.Title = fmt.Sprintf("[%s] %s %s %d commits to %s", ghe.Repo.GetName(), e.Actor, e.Action, len(p.Commits), e.Subject)
case *github.ReleaseEvent:
// TODO
case *github.RepositoryEvent:
// TODO
case *github.StatusEvent:
// TODO
case *github.TeamEvent:
// TODO
case *github.TeamAddEvent:
// TODO
case *github.WatchEvent:
// TODO
}
return e, nil
}
func (e *Event) String() string {
return e.Title
}
func (e *Event) Filter(filters []db.Filter, defaultDiscard bool) {
for _, filter := range filters {
if filter.Matches(e.RawEvent) {
e.Discarded = filter.OnMatchDiscard
return
}
}
e.Discarded = defaultDiscard // Event did not match a filter.
}