"""Show measurement info from .fif file.

Examples
--------
.. code-block:: console

    $ mne show_info sample_audvis_raw.fif

"""

# Authors: The MNE-Python contributors.
# License: BSD-3-Clause
# Copyright the MNE-Python contributors.

import sys

import mne


def run():
    """Run command."""
    parser = mne.commands.utils.get_optparser(__file__, usage="mne show_info <file>")
    options, args = parser.parse_args()
    if len(args) != 1:
        parser.print_help()
        sys.exit(1)

    fname = args[0]

    if not fname.endswith(".fif"):
        raise ValueError(f"{fname} does not seem to be a .fif file.")

    info = mne.io.read_info(fname)
    print(f"File : {fname}")
    print(info)


mne.utils.run_command_if_main()