BUG: Reading of FCP file does not work if the path in run.in is absolut

Background

When reading a run.in file the fcp_order cannot be extracted if the path to the FCP .txt file is absolut.

Example

A run.in file with the following first line can be successfully parsed:

potential order6_16x16x1_all_orders_tol1e-08_fcp.txt 0 1

but not if the path is absolut:

potential /cephyr/NOBACKUP/groups/cmmt-semiconductors/joabro/gpumd-hiphive-integration/MoS2/gpumd_simulations/local/gpumd/hnemd_simulation_order6_16x16x1_600K_Fe1e-5_2nd/order6_16x16x1_all_orders_tol1e-08_fcp.txt 0 1

Solution

Change the following lines in io.py:

                    if 'fcp.txt' in potential_filename:
                        try:
                            with open(os.path.join(os.path.dirname(filename),
                                                   potential_filename), 'r') as f:
                                settings['fcp_order'] = int(f.readlines()[1].split()[0])
                        except IOError:
                            pass

to

                    if 'fcp.txt' in potential_filename:
                        try:
                            with open(os.path.join(os.path.dirname(filename),
                                                   os.path.basename(potential_filename)), 'r') as f:
                                settings['fcp_order'] = int(f.readlines()[1].split()[0])
                        except IOError:
                            pass