resource_manager/main.go

package main

import (
	"flag"
	"git.bbr-dev.info/brajkovic/resource_manager/image"
	"io/fs"
	"io/ioutil"
	"log"
	"path/filepath"
	"strings"
)

func main() {
	folder := flag.Bool("folder", false, "copying folders instead of files")
	in := flag.String("in", "", "input file/folder")
	out := flag.String("out", "", "output file/folder")
	x := flag.Int("x", 400, "min width")
	y := flag.Int("y", 300, "min height")

	flag.Parse()

	if *folder {
		resizeFolder(*in, *out, *x, *y)
	} else {
		resize(*in, *out, *x, *y)
	}

}

func resizeFolder(src, dest string, x, y int) {
	filepath.Walk(src, func(path string, info fs.FileInfo, err error) error {
		if !info.IsDir() {
			destination := strings.ReplaceAll(path, src, dest)
			log.Printf("moving %s to %s", path, destination)
			resize(path, destination, x, y)
		}
		return err
	})
}

func resize(src, dest string, x, y int) {
	if src == "" || dest == "" {
		log.Fatalln("Missing src or dest")
	}

	source, err := ioutil.ReadFile(src)
	if err != nil {
		log.Panic(err)
	}

	destination, err := image.ResizeImage(source, x, y)
	if err != nil {
		log.Panic(err)
	}

	err = ioutil.WriteFile(dest, destination, 0644)
	if err != nil {
		log.Panic(err)
	}
}