def extract()

in xar/xar_util.py [0:0]

• 28 lines of code
• 10 McCabe index (conditional complexity)

    def extract(self, zf, dst=None):
        """Extracts the zipfile into dst under the staging directory."""
        dst = self._resolve_dst_dir(dst)
        abs_dst = os.path.join(self._staging, dst)
        timestamps = {}
        for zi in zf.infolist():
            filename = os.path.join(dst, zi.filename)
            destination = self.absolute(filename)

            mode = zi.external_attr >> 16
            if stat.S_ISLNK(mode):
                target = zf.read(zi).decode("utf-8")
                self.symlink(target, filename)
            else:
                self._ensure_parent(filename)
                zf.extract(zi, path=abs_dst)
                os.chmod(destination, stat.S_IMODE(mode))

            # Use the embedded timestamp for from the pyc file for the
            # pyc and py file; otherwise, use the timezone-less
            # timestamp from the zipfile (sigh).
            if filename.endswith(".pyc"):
                new_time = extract_pyc_timestamp(destination)
                timestamps[destination] = new_time  # pyc file
                timestamps[destination[:-1]] = new_time  # py file too
            else:
                new_time = tuple((list(zi.date_time) + [0, 0, -1]))
                timestamps[destination] = time.mktime(new_time)

        # Set our timestamps.
        for path, timestamp in timestamps.items():
            try:
                os.utime(path, (timestamp, timestamp))
            except OSError as e:
                # Sometimes we had a pyc file but no py file; the utime
                # would fail.
                if not path.endswith(".py"):
                    raise e