#!/usr/bin/env python3
# =======================================================================
# Copyright (C) 2016 Cormac Reynolds
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the
# Free Software Foundation, Inc.,
# 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
# =======================================================================

# Extract data listing from the disk_report.py output file
# Cormac Reynolds: 2016 April 6 (original version)


from __future__ import print_function, division
import json
import optparse

usage = """%prog <expname> <disk.json>
will search <disk.json> for directories matching <expname>"""

parser = optparse.OptionParser(usage=usage, version="%prog " + "1.0")
(options, args) = parser.parse_args()

expname = args[0]
disk_report = json.load(open(args[1]))

datasum = 0
for machine in disk_report.keys():
    print ("Disk report for", machine)
    for data_area in disk_report[machine].keys():
        for directory in sorted(
                disk_report[machine][data_area]["du"], key=lambda dir: dir[1]):
            if expname in directory[1]:
                print (directory[0], "GB\t", directory[1])
                datasum += int(directory[0])

print (datasum, "GB", "\ttotal")