k9s/internal/views/sorters.go

89 lines
1.5 KiB
Go

package views
import (
"regexp"
"strconv"
"strings"
"github.com/derailed/k9s/internal/resource"
)
type rowSorter struct {
rows resource.Rows
index int
asc bool
}
func (s rowSorter) Len() int {
return len(s.rows)
}
func (s rowSorter) Swap(i, j int) {
s.rows[i], s.rows[j] = s.rows[j], s.rows[i]
}
func (s rowSorter) Less(i, j int) bool {
c1 := s.rows[i][s.index]
c2 := s.rows[j][s.index]
if m1, ok := isMetric(c1); ok {
m2, _ := isMetric(c2)
i1, _ := strconv.Atoi(m1)
i2, _ := strconv.Atoi(m2)
if s.asc {
return i1 < i2
}
return i1 > i2
}
c := strings.Compare(c1, c2)
if s.asc {
return c < 0
}
return c > 0
}
// ----------------------------------------------------------------------------
type groupSorter struct {
rows []string
asc bool
}
func (s groupSorter) Len() int {
return len(s.rows)
}
func (s groupSorter) Swap(i, j int) {
s.rows[i], s.rows[j] = s.rows[j], s.rows[i]
}
func (s groupSorter) Less(i, j int) bool {
c1 := s.rows[i]
c2 := s.rows[j]
if m1, ok := isMetric(c1); ok {
m2, _ := isMetric(c2)
i1, _ := strconv.Atoi(m1)
i2, _ := strconv.Atoi(m2)
if s.asc {
return i1 < i2
}
return i1 > i2
}
c := strings.Compare(c1, c2)
if s.asc {
return c < 0
}
return c > 0
}
// ----------------------------------------------------------------------------
// Helpers...
var metricRX = regexp.MustCompile(`\A(\d+)(m|Mi)\z`)
func isMetric(s string) (string, bool) {
if m := metricRX.FindStringSubmatch(s); len(m) == 3 {
return m[1], true
}
return s, false
}