distnet.py 文件源码

def get_pkg_dir(self, pkgname, pkgver, subdir):
        pkgdir = os.path.join(get_distnet_cache(), pkgname, pkgver)
        if not os.path.isdir(pkgdir):
            os.makedirs(pkgdir)

        target = os.path.join(pkgdir, subdir)

        if os.path.exists(target):
            return target

        (fd, tmp) = tempfile.mkstemp(dir=pkgdir)
        try:
            os.close(fd)
            self.download_to_file(pkgname, pkgver, subdir, tmp)
            if subdir == REQUIRES:
                os.rename(tmp, target)
            else:
                self.extract_tar(subdir, pkgdir, tmp)
        finally:
            try:
                os.remove(tmp)
            except OSError:
                pass

        return target