cmd/pkgserver: add size

cmd/pkgserver/index.go

@@ -1,6 +1,7 @@
 package main
 
 import (
+	"cmp"
 	"errors"
 	"slices"
 	"strings"
@@ -14,6 +15,8 @@ const (
 	declarationDescending
 	nameAscending
 	nameDescending
+	sizeAscending
+	sizeDescending
 
 	sortOrderEnd = iota - 1
 )
@@ -91,5 +94,12 @@ func (index *packageIndex) populate(cache *pkg.Cache, report *rosa.Report) (err
 	index.sorts[nameDescending] = index.sorts[nameAscending]
 	slices.Reverse(index.sorts[nameDescending][:])
 
+	index.sorts[sizeAscending] = work
+	slices.SortFunc(index.sorts[sizeAscending][:], func(a, b *metadata) int {
+		return cmp.Compare(a.Size, b.Size)
+	})
+	index.sorts[sizeDescending] = index.sorts[sizeAscending]
+	slices.Reverse(index.sorts[sizeDescending][:])
+
 	return
 }