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# Copyright (C) 2014 Combox author(s). See AUTHORS.
#
# This file is part of Combox.
#
# Combox 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.
#
# Combox 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 Combox (see COPYING). If not, see
# <http://www.gnu.org/licenses/>.
##################################################
## YAML Config format
##################################################
##
## combox_dir: path/to/combox/
##
## topsecret: dba0079f1cb3a3b56e102dd5e04fa2af
##
## nodes_info:
## node_name:
## path: path/to/shard1/dir/
## size: 1000 # in MB
## available: 500 # in MB
## node name:
## path: path/to/shard2/dir/
## size: 2000
## available: 1500
## node name:
## path: path/to/shard3/dir
## size: 3000
## available: 1500
##
##################################################
import os
import yaml
import getpass
import hashlib
import sys
import stat
def config_cb():
"""
Configure combox, if not already configured.
"""
# First whether combox is already configured.
config_dir = os.path.join(os.getenv('HOME'),'.combox/')
if not os.path.exists(config_dir):
# Create combox dir and configure.
os.mkdir(config_dir, 0700)
config_file_path = os.path.join(config_dir, 'config.yaml')
config_info = {}
config_info['combox_dir'] = raw_input('path to combox directory: ')
config_info['topsecret'] = hashlib.sha224(getpass.getpass('passphrase: ')).hexdigest()
no_nodes = int(raw_input('number of nodes: '))
nodes = {}
for i in range(no_nodes):
node_name = raw_input('node %d name: ' % i)
nodes[node_name] = {}
nodes[node_name]['path'] = raw_input('node %d path: ' % i)
nodes[node_name]['size'] = raw_input('node %d size (in mega bytes): ' % i)
nodes[node_name]['available'] = nodes[node_name]['size']
config_info['nodes_info'] = nodes
config_file = open(config_file_path, 'w')
yaml.dump(config_info, config_file, default_flow_style=False)
os.chmod(config_file_path,stat.S_IRUSR|stat.S_IWUSR)
else:
print "You've already configured combox!"
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