podterminal/pods/skel.go

package pods

import (
	"bytes"
	"log"
	"os"

	"github.com/containers/podman/v4/pkg/bindings/containers"
	"github.com/spf13/viper"
)

// CopySkelToContainer copies an Archive into the containers home directory
// (Assumes the use of a Webtop container)
func CopySkelToContainer(id string) error {
	trueVar := true
	log.Println("Copying skel Archive to container")
	var buf bytes.Buffer
	var err error

	file, err := os.Open(viper.GetString("skel"))
	if err != nil {
		log.Println("Could not open skel archive", err)
		return err
	}
	defer file.Close()

	// Use 'FileInfo' to get the size of the file
	fileInfo, err := file.Stat()
	if err != nil {
		log.Println("Could not get size of skel archive", err)
		return err
	}

	// Create a buffer with the size of the file
	buffer := bytes.NewBuffer(make([]byte, 0, fileInfo.Size()))

	// Copy the file contents to the buffer
	_, err = buffer.ReadFrom(file)
	if err != nil {
		log.Println("Could not get read in skel archive", err)
		return err
	}

	log.Println("Writing file from buffer to container")
	copyOptions := &containers.CopyOptions{
		Chown: &trueVar,
	}
	_, err = containers.CopyFromArchiveWithOptions(Socket, id, "/config/", &buf, copyOptions)
	if err != nil {
		log.Print("Error copying to Container: ", err)
	}

	return err
}