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natlas-cli.py
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natlas-cli.py
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#!/usr/bin/python
'''
natlas
natlas-cli.py
Michael Laforest
Copyright (C) 2015-2018 Michael Laforest
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 2
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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
'''
import sys
import getopt
import datetime
import os
import re
from timeit import default_timer as timer
from distutils.version import LooseVersion
import natlas
DEFAULT_OPT_DEPTH = 100
DEFAULT_OPT_TITLE = 'natlas Diagram'
DEFAULT_OPT_CONF = './natlas.conf'
class natlas_mod:
def __init__(self):
self.filename = ''
self.name = ''
self.version = ''
self.author = ''
self.authoremail = ''
self.syntax = None
self.about = None
self.help = None
self.example = None
self.entryfunc = None
self.notimer = 0
self.require_api = None
self.preload_conf = 1
def __str__(self):
return ('<name="%s", version="%s", author="%s">' % (self.name, self.version, self.author))
def __repr__(self):
return self.__str__()
try:
natlas_obj = natlas.natlas()
except Exception as e:
print(e)
exit()
def main(argv):
if (len(argv) < 1):
print_banner()
print_syntax()
return
if (argv[0] != 'newconfig'):
print_banner()
modules = load_modules()
if (argv[0] == 'list'):
list_mods(modules)
return
if (argv[0] == 'info'):
print_mod_info(modules, argv[1])
return
if (argv[0] == 'help'):
if (len(argv) < 2):
print_syntax()
return
print_mod_help(modules, argv[1])
return
if (argv[0] == 'syntax'):
print_mod_syntax(modules, argv[1])
return
mod = get_mod(modules, argv[0])
if (mod != None):
exec_mod(mod, argv[1:])
return
print_syntax()
return
def print_syntax():
print('Usage:\n'
' natlas-cli.py list - Display available modules\n'
' natlat-cli.py info <module> - Display information about the module\n'
' natlat-cli.py help <module> - Display help for module\n'
' natlat-cli.py syntax <module> - Display syntax for module\n')
def print_banner():
print('natlas v%s' % natlas.__version__)
print('Michael Laforest <[email protected]>')
print('Python %s\n' % sys.version.split(' ')[0])
def load_modules():
sys.path.insert(0, './modules')
ret = []
for f in os.listdir('./modules'):
if (f[-3:] == '.py'):
mod = None
try:
mod = __import__(f[:-3], ['mod_load', 'mod_entry'])
except Exception as e:
print(e)
continue
if (hasattr(mod, 'mod_load') == 0):
print('[ERROR] No mod_load() for %s' % f)
continue
m = natlas_mod()
if (mod.mod_load(m) == 0):
print('[ERROR] mod_load() returned an error for %s' % f)
continue
m.filename = f
m.entryfunc = mod.mod_entry
ret.append(m)
return ret
def exec_mod(module, argv):
if (does_mod_accept_api(module) == 0):
print('Module is disabled.')
return 0
start = timer()
try:
natlas_obj = natlas.natlas()
except Exception as e:
print('[ERROR] %s' % e)
return 0
if (module.preload_conf == 1):
try:
argv, opt_conf = argv_get_conf(argv)
except Exception as e:
print('[ERROR] %s' % e)
return 0
try:
natlas_obj.config_load(opt_conf)
except Exception as e:
print(e)
return 0
modret = module.entryfunc(natlas_obj, argv)
if (modret == natlas.RETURN_SYNTAXERR):
print('Invalid syntax for module. See "syntax %s" for more info.' % module.name)
return 0
if (modret == natlas.RETURN_ERR):
print('[ERROR] Error encountered in module.')
return 0
if (module.notimer == 0):
s = timer() - start
h=int(s/3600)
m=int((s-(h*3600))/60)
s=s-(int(s/3600)*3600)-(m*60)
print('\nCompleted in %i:%i:%.2fs' % (h, m, s))
return 1
def argv_get_conf(argv):
opt_conf = DEFAULT_OPT_CONF
for i in range(0, len(argv)):
if (argv[i] == '-c'):
if ((i+1) >= len(argv)):
raise Exception('-c used but no file specified')
opt_conf = argv[i+1]
del argv[i+1]
del argv[i]
break
return (argv, opt_conf)
def list_mods(modules):
print('Module Version Status Author About')
print('------ ------- ------ ------ -----')
for m in modules:
status = 'Disabled'
accept = does_mod_accept_api(m)
if (accept == 1):
status = 'OK'
elif (accept == 2):
status = 'OK*'
print('{:<22} {:<8} {:<8} {:<24} {:}'.format(m.name, m.version, status, m.author, m.about))
print()
if (re.match('^.*-dev.*$', natlas.__version__)):
print('* Development version %s overrides disabled modules.' % natlas.__version__)
print()
return
def get_mod(modules, mod_name):
for m in modules:
if (m.name == mod_name):
return m
return None
def does_mod_accept_api(mod):
if (mod.require_api == None):
# no minimum version specified
return 1
accepted = (LooseVersion(mod.require_api) <= LooseVersion(natlas.__version__))
if (accepted == 0):
if (re.match('^.*-dev.*$', natlas.__version__)):
return 2
return 0
return 1
def print_mod_info(modules, mod):
m = get_mod(modules, mod)
if (m == None):
print('Invalid module')
return
require_api = 'Not specified'
status = 'OK (default)'
if (m.require_api != None):
require_api = m.require_api
accept = does_mod_accept_api(m)
if (accept == 0):
status = 'Disabled (requires newer version of natlas)'
elif (accept == 2):
status = 'OK (using development API)'
print(' Module: %s' % m.name)
print(' Version: %s' % m.version)
print(' Author: %s <%s>' % (m.author, m.authoremail))
print(' File: modules/%s' % m.filename)
print('Requires natlas: %s' % require_api)
print(' Status: %s' % status)
print()
def print_mod_help(modules, mod):
m = get_mod(modules, mod)
if (m == None):
print('Invalid module')
return
print('MODULE\n')
print(' %s v%s' % (m.name, m.version))
print(' %s <%s>' % (m.author, m.authoremail))
if (m.about != None):
print('\nABOUT\n')
print_indented(m.about)
if (m.syntax != None):
print('\nSYNTAX\n')
if (type(m.syntax) == type([])):
for s in m.syntax:
print(' %s %s' % (m.name, s))
else:
print(' %s %s' % (m.name, m.syntax))
if (m.help != None):
print('\nDETAILS\n')
print_indented(m.help)
if (m.example != None):
print('\nEXAMPLE\n')
print_indented(m.example, 0)
print()
def print_mod_syntax(modules, mod):
m = get_mod(modules, mod)
if (m == None):
print('Invalid module')
return
if (type(m.syntax) == type([])):
for s in m.syntax:
print('%s %s' % (m.name, s))
else:
print('%s %s' % (m.name, m.syntax))
def print_indented(str, wrap=1):
lines = str.lstrip().splitlines()
for line in lines:
line = line.lstrip()
if (line == ''):
print()
continue
if (wrap == 1):
wlines = [line[i:i+70] for i in range(0, len(line), 70)]
for wline in wlines:
print(' ', wline)
else:
print(' ', line)
if __name__ == "__main__":
main(sys.argv[1:])