feat: Use multiple time formats for system resource metrics

Author: hamir-suspect

test-results/cmd/resource-metrics.go

@@ -9,6 +9,7 @@ import (
 	"strings"
 	"time"
 
+	"github.com/semaphoreci/toolbox/test-results/pkg/parser"
 	"github.com/spf13/cobra"
 )
 
@@ -89,8 +90,7 @@ var resourceMetricsCmd = &cobra.Command{
 			dockerDiskSeries []string
 		)
 
-		layout := "Mon 02 Jan 2006 03:04:05 PM MST"
-		startTime, err := time.Parse(layout, metrics[0].Timestamp)
+		startTime, layout, err := parser.ParseTimeAuto(metrics[0].Timestamp)
 		if err != nil {
 			return fmt.Errorf("failed to parse start time: %w", err)
 		}

test-results/pkg/parser/time.go

@@ -0,0 +1,25 @@
+ackage parser
+
+import (
+	"fmt"
+	"time"
+)
+
+var layouts = []string{
+	time.RFC1123,
+	time.RFC1123Z,
+	"Mon 02 Jan 2006 03:04:05 PM MST",
+	"Mon Jan 2 15:04:05 MST 2006",
+	"Mon Jan 2 03:04:05 PM MST 2006",
+	"Mon Jan 2 15:04:05 UTC 2006",
+}
+
+func ParseTimeAuto(input string) (time.Time, string, error) {
+	for _, layout := range layouts {
+		t, err := time.Parse(layout, input)
+		if err == nil {
+			return t, layout, nil
+		}
+	}
+	return time.Time{}, "", fmt.Errorf("no matching layout found for: %s", input)
+}