func UnzipPath(sourcePath string, log Log) (string, error) {
	unzipPath := fmt.Sprintf("%s.unzipped", sourcePath)
	err := unzipOver(sourcePath, unzipPath, log)
	if err != nil {
		return "", err
	}
	return unzipPath, nil
}
UnzipPath unzips and returns path to unzipped directory
package util
import (
	"archive/zip"
	"fmt"
	"io"
	"io/ioutil"
	"os"
	"path/filepath"
)
func UnzipOver(sourcePath string, path string, destinationPath string, check func(sourcePath, destinationPath string) error, tmpDir string, log Log) error {
	unzipPath := fmt.Sprintf("%s.unzipped", sourcePath)
	defer RemoveFileAtPath(unzipPath)
	err := unzipOver(sourcePath, unzipPath, log)
	if err != nil {
		return err
	}
	contentPath := filepath.Join(unzipPath, path)
	err = check(contentPath, destinationPath)
	if err != nil {
		return err
	}
	return MoveFile(contentPath, destinationPath, tmpDir, log)
}