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// Command thumber creates 256x256 thumbnails for a folder/pile of them.
package main
import (
"flag"
"log"
"os"
"path/filepath"
"strings"
"github.com/disintegration/imaging"
"within.website/x/internal"
)
var (
dirToWalk = flag.String("walkdir", "./in", "directory to walk and generate thumbnails for")
)
func main() {
internal.HandleStartup()
err := filepath.Walk(*dirToWalk, makeThumbnail)
if err != nil {
log.Fatal(err)
}
}
func makeThumbnail(fname string, info os.FileInfo, err error) error {
if info.IsDir() {
return nil
}
if strings.HasSuffix(fname, ".thumb.png") {
return nil
}
if strings.HasSuffix(fname, ".html") {
return nil
}
_, err = os.Stat("thumbs/" + filepath.Base(fname) + ".thumb.png")
if err == nil {
log.Printf("skipping %s", fname)
return nil
}
log.Printf("Starting to open %s", fname)
img, err := imaging.Open(fname)
if err != nil {
return err
}
croppedImage := imaging.Thumbnail(img, 256, 256, imaging.Lanczos)
err = imaging.Save(croppedImage, "thumbs/"+filepath.Base(fname)+".thumb.png")
return err
}
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