Fix datetime in checker reports

* Change how the datetime is generated for the report.

Co-authored-by: Bernhard Reiter <bernhard@intevation.de>

cmd/csaf_checker/processor.go

@@ -192,7 +192,10 @@ func (p *processor) clean() {
 // It returns a pointer to the report and nil, otherwise an error.
 func (p *processor) run(reporters []reporter, domains []string) (*Report, error) {
 
-	var report Report
+	report := Report{
+		Date:    ReportTime{Time: time.Now().UTC()},
+		Version: util.SemVersion,
+	}
 
 	for _, d := range domains {
 		if err := p.checkDomain(d); err != nil {
@@ -205,9 +208,6 @@ func (p *processor) run(reporters []reporter, domains []string) (*Report, error)
 		for _, r := range reporters {
 			r.report(p, domain)
 		}
-		report.Version = util.SemVersion
-		now := time.Now()
-		report.Date = now.Format("2006-01-02T15:04:05Z")
 		report.Domains = append(report.Domains, domain)
 		p.clean()
 	}

cmd/csaf_checker/report.go

@@ -8,7 +8,10 @@
 
 package main
 
-import "fmt"
+import (
+	"fmt"
+	"time"
+)
 
 // MessageType is the kind of the message.
 type MessageType int
@@ -41,11 +44,19 @@ type Domain struct {
 	Requirements []*Requirement `json:"requirements,omitempty"`
 }
 
+// ReportTime stores the time of the report.
+type ReportTime struct{ time.Time }
+
 // Report is the overall report.
 type Report struct {
 	Domains []*Domain  `json:"domains,omitempty"`
 	Version string     `json:"version,omitempty"`
-	Date    string    `json:"date,omitempty"`
+	Date    ReportTime `json:"date,omitempty"`
+}
+
+// MarshalText implements the encoding.TextMarshaller interface.
+func (rt ReportTime) MarshalText() ([]byte, error) {
+	return []byte(rt.Format(time.RFC3339)), nil
 }
 
 // HasErrors tells if this requirement has errors.

cmd/csaf_checker/tmpl/report.html

@@ -21,7 +21,7 @@
 {{ end }}
 
     <footer>
-      Date of run: <time datetime="{{.Date}}">{{.Date}}</time>
+      Date of run: <time datetime="{{.Date.Format "2006-01-02T15:04:05Z"}}">{{ .Date.Format "2006-01-02T15:04:05Z" }}</time>
       csaf_checker v<span class="version">{{ .Version }}</span>
     </footer>
   </body>