Format a size without go-humanize

cbconvert.go

@@ -12,7 +12,6 @@ import (
 	"strconv"
 	"strings"
 
-	"github.com/dustin/go-humanize"
 	folio "github.com/gen2brain/folio/doc"
 	"github.com/gen2brain/pngn"
 )
@@ -256,7 +255,7 @@ func (c *Converter) Files(args []string) ([]File, error) {
 		file.Path = fp
 		file.Root = root
 		file.Stat = f
-		file.SizeHuman = humanize.IBytes(uint64(f.Size()))
+		file.SizeHuman = sizeHuman(uint64(f.Size()))
 		return file
 	}
 
@@ -579,7 +578,7 @@ func (c *Converter) previewImage(fileName string, i image.Image, width, height i
 
 	img.Width = i.Bounds().Dx()
 	img.Height = i.Bounds().Dy()
-	img.SizeHuman = humanize.IBytes(uint64(len(w.Bytes())))
+	img.SizeHuman = sizeHuman(uint64(len(w.Bytes())))
 
 	dec, err := c.imageDecode(bytes.NewReader(w.Bytes()))
 	if err != nil {

cbconvert_func.go

@@ -3,6 +3,7 @@ package cbconvert
 import (
 	"fmt"
 	"io"
+	"math"
 	"os"
 	"path/filepath"
 	"strings"
@@ -90,6 +91,24 @@ func filesFromPath(path string) ([]string, error) {
 	return files, nil
 }
 
+// sizeHuman formats a size in IEC units.
+func sizeHuman(s uint64) string {
+	if s < 10 {
+		return fmt.Sprintf("%d B", s)
+	}
+
+	sizes := []string{"B", "KiB", "MiB", "GiB", "TiB", "PiB", "EiB"}
+	e := math.Floor(math.Log(float64(s)) / math.Log(1024))
+	val := math.Floor(float64(s)/math.Pow(1024, e)*10+0.5) / 10
+
+	f := "%.0f %s"
+	if val < 10 {
+		f = "%.1f %s"
+	}
+
+	return fmt.Sprintf(f, val, sizes[int(e)])
+}
+
 // isArchive checks if a file is archive.
 func isArchive(f string) bool {
 	var types = []string{".rar", ".zip", ".7z", ".tar", ".cbr", ".cbz", ".cb7", ".cbt"}

go.mod

@@ -4,10 +4,10 @@ go 1.26.4
 
 require (
 	github.com/anthonynsimon/bild v0.15.0
-	github.com/dustin/go-humanize v1.0.1
 	github.com/fvbommel/sortorder v1.1.0
 	github.com/gen2brain/folio v0.2.4
 	github.com/gen2brain/gav1d v0.2.4
+	github.com/gen2brain/jpegn v0.6.0
 	github.com/gen2brain/jxl v0.2.0
 	github.com/gen2brain/pngn v0.1.2
 	github.com/gen2brain/vpx v0.2.1
@@ -24,7 +24,6 @@ require (
 	github.com/bodgit/sevenzip v1.6.4 // indirect
 	github.com/bodgit/windows v1.0.1 // indirect
 	github.com/dsnet/compress v0.0.2-0.20230904184137-39efe44ab707 // indirect
-	github.com/gen2brain/jpegn v0.6.0
 	github.com/hashicorp/golang-lru/v2 v2.0.7 // indirect
 	github.com/klauspost/compress v1.18.6 // indirect
 	github.com/klauspost/pgzip v1.2.6 // indirect

go.sum

@@ -16,8 +16,6 @@ github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSs
 github.com/dsnet/compress v0.0.2-0.20230904184137-39efe44ab707 h1:2tV76y6Q9BB+NEBasnqvs7e49aEBFI8ejC89PSnWH+4=
 github.com/dsnet/compress v0.0.2-0.20230904184137-39efe44ab707/go.mod h1:qssHWj60/X5sZFNxpG4HBPDHVqxNm4DfnCKgrbZOT+s=
 github.com/dsnet/golib v0.0.0-20171103203638-1ea166775780/go.mod h1:Lj+Z9rebOhdfkVLjJ8T6VcRQv3SXugXy999NBtR9aFY=
-github.com/dustin/go-humanize v1.0.1 h1:GzkhY7T5VNhEkwH0PVJgjz+fX1rhBrR7pRT3mDkpeCY=
-github.com/dustin/go-humanize v1.0.1/go.mod h1:Mu1zIs6XwVuF/gI1OepvI0qD18qycQx+mFykh5fBlto=
 github.com/fvbommel/sortorder v1.1.0 h1:fUmoe+HLsBTctBDoaBwpQo5N+nrCp8g/BjKb/6ZQmYw=
 github.com/fvbommel/sortorder v1.1.0/go.mod h1:uk88iVf1ovNn1iLfgUVU2F9o5eO30ui720w+kxuqRs0=
 github.com/gen2brain/folio v0.2.4 h1:c1eZYBucycynbyF1UkAXC8Zm/NbWMjHQhckDrz5gBWg=