freeze-ancient-issues: parse issue repo from URL

Issues returned from GitHub Search API do not contain the Repository
field so the previous code was crashing

cmd/freeze-ancient-issues/main.go

@@ -151,16 +151,18 @@ func processRepo(context *ctx.Context, owner, repo string, actuallyDoIt bool) er
 func processIssues(context *ctx.Context, actuallyDoIt bool, issues []github.Issue) error {
 	for _, issue := range issues {
 		context.Log("processing issue: %#v", issue)
-		owner := issue.GetRepository().GetOwner().GetLogin()
-		repo := issue.GetRepository().GetName()
+		repo, err := jekyll.ParseRepositoryFromURL(issue.GetHTMLURL())
+		if err != nil {
+			return err
+		}
 		if actuallyDoIt {
-			log.Printf("%s/%s: freezing %s", owner, repo, issue.GetHTMLURL())
-			if err := freeze.Freeze(context, owner, repo, issue.GetNumber()); err != nil {
+			log.Printf("%s/%s: freezing %s", repo.Owner(), repo.Name(), issue.GetHTMLURL())
+			if err := freeze.Freeze(context, repo.Owner(), repo.Name(), issue.GetNumber()); err != nil {
 				return err
 			}
 			time.Sleep(sleepBetweenFreezes)
 		} else {
-			log.Printf("%s/%s: would have frozen %s", owner, repo, issue.GetHTMLURL())
+			log.Printf("%s/%s: would have frozen %s", repo.Owner(), repo.Name(), issue.GetHTMLURL())
 			time.Sleep(sleepBetweenFreezes)
 		}
 	}

jekyll/repos.go

@@ -1,6 +1,7 @@
 package jekyll
 
 import (
+	"net/url"
 	"strings"
 
 	"github.com/pkg/errors"
@@ -32,6 +33,18 @@ func ParseRepository(repoNWO string) (Repository, error) {
 	return NewRepository(pieces[0], pieces[1]), nil
 }
 
+func ParseRepositoryFromURL(urlStr string) (Repository, error) {
+	u, err := url.Parse(urlStr)
+	if err != nil {
+		return nil, err
+	}
+	pieces := strings.Split(u.Path, "/")
+	if len(pieces) < 2 {
+		return nil, errors.Errorf("url has no repo: %q", urlStr)
+	}
+	return NewRepository(pieces[0], pieces[1]), nil
+}
+
 func NewRepository(owner, repo string) Repository {
 	return GitHubRepository{owner, repo}
 }