73 lines
2.2 KiB
Python
73 lines
2.2 KiB
Python
#! /usr/bin/env python
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# These methods are used by test.py and waf to look for and read the
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# .ns3rc configuration file, which is used to specify the modules that
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# should be enabled
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import os
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import sys
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def get_list_from_file(file_path, list_name):
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'''Looks for a Python list called list_name in the file specified
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by file_path and returns it.
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If the file or list name aren't found, this function will return
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an empty list.
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'''
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list = []
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# Read in the file if it exists.
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if os.path.exists(file_path):
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file_in = open(file_path, "r")
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# Look for the list.
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list_string = ""
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parsing_multiline_list = False
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for line in file_in:
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if list_name in line or parsing_multiline_list:
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list_string += line
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# Handle multiline lists.
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if ']' not in list_string:
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parsing_multiline_list = True
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else:
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# Evaluate the list once its end is reached.
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# Make the split function only split it once.
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list = eval(list_string.split('=', 1)[1].strip())
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break
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# Close the file
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file_in.close()
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return list
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def read_config_file():
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'''Reads the NS-3 configuration file and returns a list of enabled modules.
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This function first looks for the ns3 configuration file (.ns3rc)
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in the current working directory and then looks in the ~
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directory.
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'''
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# See if the ns3 configuration file exists in the current working
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# directory and then look for it in the ~ directory.
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dot_ns3rc_name = '.ns3rc'
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dot_ns3rc_path = dot_ns3rc_name
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if not os.path.exists(dot_ns3rc_path):
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dot_ns3rc_path = os.path.expanduser('~/') + dot_ns3rc_name
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if not os.path.exists(dot_ns3rc_path):
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# Enable all modules if the .ns3rc file can't be found.
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return ['all_modules']
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# Read in the ns3 configuration file.
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modules_enabled = get_list_from_file(dot_ns3rc_path, 'modules_enabled')
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if not modules_enabled:
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# Enable all modules if the modules_enabled line can't be found.
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return ['all_modules']
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return modules_enabled
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