51 lines
903 B
Go
51 lines
903 B
Go
package main
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import (
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"bytes"
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"flag"
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"io"
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"log"
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"net/http"
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"os"
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"path/filepath"
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"github.com/disintegration/imaging"
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)
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func main() {
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targetFile := flag.String("o", "out.jpg", "target file")
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flag.Parse()
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var bfr bytes.Buffer
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if err := fetchHeaderImage(&bfr, "https://lmika.org/uploads/2025/pxl-20251120-083552448.jpg"); err != nil {
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log.Fatal(err)
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}
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img, err := imaging.Decode(&bfr, imaging.AutoOrientation(true))
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if err != nil {
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log.Fatal(err)
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}
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rImg := imaging.Resize(img, 1280, 0, imaging.Lanczos)
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if err := os.MkdirAll(filepath.Dir(*targetFile), 0755); err != nil {
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log.Fatal(err)
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}
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if err := imaging.Save(rImg, *targetFile, imaging.JPEGQuality(70)); err != nil {
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log.Fatal(err)
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}
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}
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func fetchHeaderImage(w io.Writer, url string) error {
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r, err := http.Get(url)
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if err != nil {
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return err
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}
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defer r.Body.Close()
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_, err = io.Copy(w, r.Body)
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return err
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}
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