feat: add an option to skip builds for draft PR

Signed-off-by: ankitm123 <[email protected]>

Author: ankitm123

pkg/config/job/presubmit.go

@@ -46,6 +46,8 @@ type Presubmit struct {
 	// (Default: `/test <job name>`)
 	RerunCommand string       `json:"rerun_command,omitempty"`
 	JenkinsSpec  *JenkinsSpec `json:"jenkins_spec,omitempty"`
+	// SkipDraftPRBuild controls if we want to build a PR in draft mode
+	SkipDraftPRBuild bool `default:"false" json:"skip_draft_pr_build,omitempty"`
 
 	// We'll set these when we load it.
 	// re *regexp.Regexp // from Trigger.

pkg/plugins/trigger/pull-request.go

@@ -270,5 +270,15 @@ func buildAll(c Client, pr *scm.PullRequest, eventGUID string, elideSkippedConte
 	if err != nil {
 		return err
 	}
+
+	for _, v := range c.Config.GetPresubmits(pr.Base.Repo) {
+		// For multiple pre submits this wont run any of the pre-submits, which is not desirable
+		fmt.Println(v.Name, " ", v.SkipDraftPRBuild)
+		if v.SkipDraftPRBuild && pr.Draft {
+			c.Logger.Debug("Skipping build for draft PR")
+			return nil
+		}
+	}
+
 	return RunAndSkipJobs(c, pr, toTest, toSkip, eventGUID, elideSkippedContexts)
 }