57 lines
965 B
Go
57 lines
965 B
Go
package main
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import (
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"flag"
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"log"
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"os"
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"path/filepath"
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"strings"
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"github.com/disintegration/imaging"
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)
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var (
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dirToWalk = flag.String("walkdir", "./in", "directory to walk and generate thumbnails for")
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)
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func main() {
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flag.Parse()
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err := filepath.Walk(*dirToWalk, makeThumbnail)
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if err != nil {
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log.Fatal(err)
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}
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}
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func makeThumbnail(fname string, info os.FileInfo, err error) error {
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if info.IsDir() {
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return nil
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}
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if strings.HasSuffix(fname, ".thumb.png") {
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return nil
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}
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if strings.HasSuffix(fname, ".html") {
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return nil
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}
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_, err = os.Stat("thumbs/" + filepath.Base(fname) + ".thumb.png")
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if err == nil {
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log.Printf("skipping %s", fname)
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return nil
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}
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log.Printf("Starting to open %s", fname)
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img, err := imaging.Open(fname)
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if err != nil {
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return err
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}
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croppedImage := imaging.Thumbnail(img, 256, 256, imaging.Lanczos)
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err = imaging.Save(croppedImage, "thumbs/"+filepath.Base(fname)+".thumb.png")
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return err
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}
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