replaced github.com/xhit/go-str2duration with my own func + tests

lib/sort.go

@@ -19,7 +19,7 @@ package lib
 
 import (
 	"github.com/araddon/dateparse"
-	str2duration "github.com/xhit/go-str2duration/v2"
+	"regexp"
 	"sort"
 	"strconv"
 )
@@ -63,15 +63,9 @@ func compare(a string, b string) bool {
 		}
 		comp = left < right
 	case "duration":
-		left, err := str2duration.ParseDuration(a)
-		if err != nil {
-			left = 0
-		}
-		right, err := str2duration.ParseDuration(b)
-		if err != nil {
-			right = 0
-		}
-		comp = left.Seconds() < right.Seconds()
+		left := duration2int(a)
+		right := duration2int(b)
+		comp = left < right
 	case "time":
 		left, _ := dateparse.ParseAny(a)
 		right, _ := dateparse.ParseAny(b)
@@ -86,3 +80,37 @@ func compare(a string, b string) bool {
 
 	return comp
 }
+
+/*
+   We could use time.ParseDuration(), but this doesn't support days.
+
+   We  could also  use github.com/xhit/go-str2duration/v2,  which does
+   the job,  but it's  just another dependency,  just for  this little
+   gem. And  we don't need a  time.Time value. And int  is good enough
+   for duration comparision.
+
+   Convert a  durartion into  an integer.  Valid  time units  are "s",
+   "m", "h" and "d".
+*/
+func duration2int(duration string) int {
+	re := regexp.MustCompile(`(\d+)([dhms])`)
+	seconds := 0
+
+	for _, match := range re.FindAllStringSubmatch(duration, -1) {
+		if len(match) == 3 {
+			v, _ := strconv.Atoi(match[1])
+			switch match[2][0] {
+			case 'd':
+				seconds += v * 86400
+			case 'h':
+				seconds += v * 3600
+			case 'm':
+				seconds += v * 60
+			case 's':
+				seconds += v
+			}
+		}
+	}
+
+	return seconds
+}