"""Util to invoke tarball in the system.""" # pylint: disable=invalid-name from __future__ import absolute_import as _abs import os import shutil import subprocess from . import util from .._ffi.base import py_str def tar(output, files): """Create tarball containing all files in root. Parameters ---------- output : str The target shared library. files : list List of files to be bundled. """ cmd = ["tar"] cmd += ["-czf"] temp = util.tempdir() fset = set() for fname in files: base = os.path.basename(fname) if base in fset: raise ValueError("duplicate file name %s" % base) fset.add(base) shutil.copy(fname, temp.relpath(base)) cmd += [output] cmd += ["-C", temp.temp_dir] cmd += temp.listdir() proc = subprocess.Popen(cmd, stdout=subprocess.PIPE, stderr=subprocess.STDOUT) (out, _) = proc.communicate() if proc.returncode != 0: msg = "Tar error:\n" msg += py_str(out) raise RuntimeError(msg) def untar(tar_file, directory): """Unpack all tar files into the directory Parameters ---------- tar_file : str The source tar file. directory : str The target directory """ cmd = ["tar"] cmd += ["-xf"] cmd += [tar_file] cmd += ["-C", directory] proc = subprocess.Popen(cmd, stdout=subprocess.PIPE, stderr=subprocess.STDOUT) (out, _) = proc.communicate() if proc.returncode != 0: msg = "Tar error:\n" msg += py_str(out) raise RuntimeError(msg)