feat: adding a delete_event

[claire1618]

This code enables the delete webhook in Vela, so users can select to trigger a build when a branch or tag are deleted.

[codecov]

Codecov Report

Attention: 29 lines in your changes are missing coverage. Please review.

Comparison is base (a91bd54) 96.18% compared to head (5198a27) 95.85%.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #340      +/-   ##
==========================================
- Coverage   96.18%   95.85%   -0.33%     
==========================================
  Files          69       70       +1     
  Lines        7417     7504      +87     
==========================================
+ Hits         7134     7193      +59     
- Misses        205      233      +28     
  Partials       78       78              

Files	Coverage Δ
library/actions/comment.go	92.30% <ø> (ø)
library/actions/delete.go	100.00% <100.00%> (ø)
library/actions/push.go	100.00% <ø> (ø)
library/events.go	82.58% <95.23%> (+2.58%)	⬆️
library/repo.go	93.59% <3.44%> (-6.41%)	⬇️

[ecrupper]

There shouldn't be a new field in library.Repo or database.Repo — only in library.Events should there be a new action set for delete events.

[wass3rw3rk]

lgtm, do we want to add delete here as well:

types/yaml/ruleset.go

Lines 147 to 163 in 26e54c8

	for _, e := range rules.Event {
	switch e {
	// backwards compatibility
	// pull_request = pull_request:opened + pull_request:synchronize + pull_request:reopened
	// comment = comment:created + comment:edited
	case constants.EventPull:
	events = append(events,
	constants.EventPull+":"+constants.ActionOpened,
	constants.EventPull+":"+constants.ActionSynchronize,
	constants.EventPull+":"+constants.ActionReopened)
	case constants.EventComment:
	events = append(events,
	constants.EventComment+":"+constants.ActionCreated,
	constants.EventComment+":"+constants.ActionEdited)
	default:
	events = append(events, e)
	}

, so when you specify just delete it will add both actions for you? not saying we have to, just asking to get thoughts.

[KellyMerrick]

lgtm