refactor: store patch author date as datetime

Author: neurosnap

cli.go

@@ -523,7 +523,7 @@ Here's how it works:
 							w := NewTabWriter(sesh)
 							fmt.Fprintln(w, "Idx\tTitle\tCommit\tAuthor\tDate")
 							for idx, patch := range opatches {
-								timestamp := AuthorDateToTime(patch.AuthorDate, be.Logger).Format(be.Cfg.TimeFormat)
+								timestamp := patch.AuthorDate.Format(be.Cfg.TimeFormat)
 								fmt.Fprintf(
 									w,
 									"%d\t%s\t%s\t%s <%s>\t%s\n",

db.go

@@ -58,7 +58,7 @@ type Patch struct {
 	PatchsetID    int64          `db:"patchset_id"`
 	AuthorName    string         `db:"author_name"`
 	AuthorEmail   string         `db:"author_email"`
-	AuthorDate    string         `db:"author_date"`
+	AuthorDate    time.Time      `db:"author_date"`
 	Title         string         `db:"title"`
 	Body          string         `db:"body"`
 	BodyAppendix  string         `db:"body_appendix"`

util.go

@@ -149,7 +149,7 @@ func parsePatchset(patchset io.Reader) ([]*Patch, error) {
 		patches = append(patches, &Patch{
 			AuthorName:    authorName,
 			AuthorEmail:   authorEmail,
-			AuthorDate:    header.AuthorDate.UTC().String(),
+			AuthorDate:    header.AuthorDate.UTC(),
 			Title:         header.Title,
 			Body:          header.Body,
 			BodyAppendix:  header.BodyAppendix,

web.go

@@ -404,7 +404,7 @@ func prDetailHandler(w http.ResponseWriter, r *http.Request) {
 		}
 
 		for _, patch := range patches {
-			timestamp := AuthorDateToTime(patch.AuthorDate, web.Logger).Format(web.Backend.Cfg.TimeFormat)
+			timestamp := patch.AuthorDate.Format(web.Backend.Cfg.TimeFormat)
 			diffStr, err := parseText(web.Formatter, web.Theme, patch.RawText)
 			if err != nil {
 				web.Logger.Error("cannot parse patch", "err", err)