api: replace generated Created/Updated timestamps with commit properties

api.go

@@ -6,6 +6,7 @@ import (
 	"encoding/json"
 	"fmt"
 	"io/ioutil"
+	"log"
 	"net/http"
 	"net/url"
 	"strings"
@@ -189,20 +190,55 @@ func (this *Application) repos(ctx context.Context) ([]Repo, error) {
 		}
 
 		if len(page) == 0 && len(ret) > 0 {
-			return ret, nil // Found enough already
+			break // Found enough already
 		}
 
 		ret = append(ret, page...)
 		nextPage += 1
 	}
+
+	// The Created/Modified times aren't very good
+	// Replace them with the earliest/latest commit dates we can find
+
+	for i, rr := range ret {
+
+		// The most recent commit will be the head of one of the branches (easy to find)
+
+		brs, err := this.branches(ctx, rr.Name)
+		if err != nil {
+			log.Printf("loading branches for '%s': %s", rr.Name, err)
+			continue
 		}
 
-
+		newestCommit := time.Unix(0, 0) // sentinel
-
+		for _, br := range brs {
+			if br.Commit.Timestamp.After(newestCommit) {
+				newestCommit = br.Commit.Timestamp
+			}
+		}
+		if !newestCommit.Equal(time.Unix(0, 0)) {
+			ret[i].UpdatedAt = newestCommit // replace it
+		}
 	}
 
+	// Separate loop for oldest-commits, in case we needed to continue/break out
+	// of the earliest-commit loop
+
+	for i, rr := range ret {
+
+		// The oldest commit needs us to page through the commit history to find it
+
+		oldestCommit, err := this.oldestCommit(ctx, rr.Name, "")
+		if err != nil {
+			log.Printf("finding oldest commit for '%s': %s", rr.Name, err)
+			continue
 		}
 
+		ret[i].CreatedAt = oldestCommit.Commit.Author.Date
+	}
+
+	return ret, nil
+}
 
 // repoFile gets a single file from the default branch of the git repository
 // Usually the default branch is `master`.