comparison mercurial/archival.py @ 45048:2c0043977b6d stable

archival: abort if compression method is unavailable

`tarfile.CompressionError` is documented to be the "exception for unavailable
compression methods".

Also, make tests conditional on whether the lzma module is available or not.

45047:40120de810ba

                self.fileobj = gzfileobj
                return tarfile.TarFile.taropen(  # pytype: disable=attribute-error
                    name, pycompat.sysstr(mode), gzfileobj
                )
            else:
                return tarfile.open(name, pycompat.sysstr(mode + kind), fileobj)

        if isinstance(dest, bytes):
            self.z = taropen(b'w:', name=dest)
        else:
            self.z = taropen(b'w|', fileobj=dest)

45048:2c0043977b6d

                self.fileobj = gzfileobj
                return tarfile.TarFile.taropen(  # pytype: disable=attribute-error
                    name, pycompat.sysstr(mode), gzfileobj
                )
            else:
                try:
                    return tarfile.open(
                        name, pycompat.sysstr(mode + kind), fileobj
                    )
                except tarfile.CompressionError as e:
                    raise error.Abort(pycompat.bytestr(e))

        if isinstance(dest, bytes):
            self.z = taropen(b'w:', name=dest)
        else:
            self.z = taropen(b'w|', fileobj=dest)