moulinette/parse_args
2012-10-14 13:42:22 +02:00

579 lines
20 KiB
Python
Executable file

#!/usr/bin/env python
# -*- coding: utf-8 -*-
__credits__ = """
Copyright (C) 2012 YunoHost
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU Affero 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 Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License
along with this program; if not, see http://www.gnu.org/licenses
"""
__author__ = 'Kload <kload@kload.fr>'
__version__ = '2.0 beta1'
import os
import sys
import argparse
import gettext
import json
if not __debug__:
import traceback
gettext.install('YunoHost')
try:
from yunohost import YunoHostError, YunoHostLDAP, str_to_func, colorize, pretty_print_dict
except ImportError:
sys.stderr.write('Require YunoHost lib')
sys.exit(1)
"""
Category/actions/arguments dictionnary
Except for general_arguments, this dictionary contains 3 levels
as in this sample command line :
yunohost monitor info --cpu --ram
^ ^ ^ ^
(script) | category | action | parameters
Above example will lead to the function 'monitor_info(args)'
in the file 'yunohost_monitor.py' with 'cpu' and 'ram'
stored in args dictionnary.
Usage:
You can add a category at the first level, action at the second one,
and arguments at the third one.
If a connexion is needed for the action, don't forget to add it to
the action parameters (ldap, repo, dns or firewall).
Documentation:
You can see all arguments settings at the argparse documentation:
http://docs.python.org/dev/library/argparse.html
#argparse.ArgumentParser.add_argument
Don't forget to turn argument as dictionnary ('setting' : 'value')
"""
action_dict = {
#############################
# General args #
#############################
'general_arguments' : {
'-v' : {
'full' : '--version',
'help' : _("Display %(prog)s version"),
'action' : 'version',
'version' : '%(prog)s ' + __version__,
},
},
#############################
# User #
#############################
'user' : {
'category_help' : _("Manage users"),
'actions' : {
### user_list()
'list' : {
'action_help' : _("List users"),
'connections' : ['ldap'],
'arguments' : {
'--fields' : {
'help' : _("fields to fetch"),
'nargs' : '+',
},
'-f' : {
'full' : '--filter',
'help' : _("LDAP filter used to search"),
},
'-l' : {
'full' : '--limit',
'help' : _("Maximum number of user fetched"),
},
'-o' : {
'full' : '--offset',
'help' : _("Starting number for user fetching"),
},
}
},
### user_create()
'create' : {
'action_help' : _("Create user"),
'connections' : ['ldap'],
'arguments' : {
'-u' : {
'full' : '--username',
'help' : _("Must be unique"),
},
'-f' : {
'full' : '--firstname',
},
'-l' : {
'full' : '--lastname',
},
'-m' : {
'full' : '--mail',
'help' : _("Main mail address, must be unique"),
},
'-p' : {
'full' : '--password',
},
}
},
### user_delete()
'delete' : {
'action_help' : _("Delete user"),
'connections' : ['ldap'],
'arguments' : {
'users' : {
'help' : _("Username of users to delete"),
'nargs' : '+',
},
}
},
### user_update()
'update' : {
'action_help' : _("Update user informations"),
'connections' : ['ldap'],
'arguments' : {
'user' : {
'help' : _("Username of user to update"),
},
'-f' : {
'full' : '--firstname',
},
'-l' : {
'full' : '--lastname',
},
'-m' : {
'full' : '--mail',
},
'-cp' : {
'full' : '--change-password',
'help' : _("New password to set"),
'metavar' : 'PASSWORD',
},
'--add-mailforward' : {
'help' : _("Mailforward addresses to add"),
'nargs' : '+',
'metavar' : 'MAIL',
},
'--remove-mailforward' : {
'help' : _("Mailforward addresses to remove"),
'nargs' : '+',
'metavar' : 'MAIL',
},
'-add-mailalias' : {
'help' : _("Mail aliases to add"),
'nargs' : '+',
'metavar' : 'MAIL',
},
'-remove-mailalias' : {
'help' : _("Mail aliases to remove"),
'nargs' : '+',
'metavar' : 'MAIL',
},
}
},
### user_info()
'info' : {
'action_help' : _("Get user informations"),
'connections' : ['ldap'],
'arguments' : {
'user' : {
'nargs' : '?',
},
'-m' : {
'full' : '--mail',
},
'-cn' : {
'full' : '--fullname',
},
}
},
}
},
#############################
# Domain #
#############################
'domain' : {
'category_help' : _("Manage domains"),
'actions' : {
### domain_list()
'list' : {
'action_help' : _("List domains"),
'connections' : ['ldap'],
'arguments' : {
'-f' : {
'full' : '--filter',
'help' : _("LDAP filter used to search"),
},
'-l' : {
'full' : '--limit',
'help' : _("Maximum number of domain fetched"),
},
'-o' : {
'full' : '--offset',
'help' : _("Starting number for domain fetching"),
},
}
},
### domain_create()
'create' : {
'action_help' : _("Create a custom domain"),
'connections' : ['ldap'],
'arguments' : {
'domain name' : {
'help' : _("Domain name to create"),
}
}
},
### domain_delete()
'delete' : {
'action_help' : _("Delete domains"),
'connections' : ['ldap'],
'arguments' : {
'domain' : {
'help' : _("Domain(s) to delete"),
'nargs' : '+',
},
}
},
### domain_info()
'info' : {
'action_help' : _("Get domain informations"),
'connections' : ['ldap'],
'arguments' : {
'domain-name' : {}
}
},
### domain_renewcert()
'renewcert' : {
'action_help' : _("Renew domain certificate"),
'connections' : ['ldap'],
'arguments' : {
'domain-name' : {}
}
},
}
},
#############################
# App #
#############################
'app' : {
'category_help' : _("Manage apps"),
'actions' : {
### app_list()
'list' : {
'action_help' : _("List apps"),
'connections' : ['ldap'],
'arguments' : {
'--fields' : {
'help' : _("fields to fetch"),
'nargs' : '+',
},
'-f' : {
'full' : '--filter',
'help' : _("LDAP filter used to search"),
},
'-l' : {
'full' : '--limit',
'help' : _("Maximum number of app fetched"),
},
'-o' : {
'full' : '--offset',
'help' : _("Starting number for app fetching"),
},
}
},
### app_install() TODO: Write help
'install' : {
'action_help' : _("Install apps"),
'connections' : ['ldap'],
'arguments' : {
'appname' : {
'nargs' : '+',
},
'-d' : {
'full' : '--domain',
},
'-p' : {
'full' : '--path',
},
'-l' : {
'full' : '--label',
},
'--public' : {
'action' : 'store_true',
},
'--protected' : {
'action' : 'store_true',
},
}
},
### app_remove() TODO: Write help
'remove' : {
'action_help' : _("Remove app"),
'connections' : ['ldap'],
'arguments' : {
'app' : {
'help' : _("App(s) to delete"),
'nargs' : '+',
},
}
},
### app_upgrade()
'upgrade' : {
'action_help' : _("Upgrade app"),
'connections' : ['ldap'],
'arguments' : {
'app' : {
'help' : _("App(s) to upgrade"),
'nargs' : '+',
},
}
},
### app_info() TODO: Write help
'info' : {
'action_help' : _("Get app informations"),
'connections' : ['ldap'],
'arguments' : {
'app' : {},
}
},
### app_addaccess() TODO: Write help
'addaccess' : {
'action_help' : _("Grant access right to users (everyone by default)"),
'connections' : ['ldap'],
'arguments' : {
'app' : {
'nargs' : '+',
},
'-u' : {
'full' : '--user',
'nargs' : '+',
},
}
},
### app_removeaccess() TODO: Write help
'removeaccess' : {
'action_help' : _("Revoke access right to users (everyone by default)"),
'connections' : ['ldap'],
'arguments' : {
'app' : {
'nargs' : '+',
},
'-u' : {
'full' : '--user',
'nargs' : '+',
},
}
},
}
},
#############################
# Repository #
#############################
'repo' : {
'category_help' : _("Manage app repositories"),
'actions' : {
### repo_list()
'list' : {
'action_help' : _("List repositories"),
'connections' : ['ldap'],
'arguments' : {
'-f' : {
'full' : '--filter',
'help' : _("LDAP filter used to search"),
},
'-l' : {
'full' : '--limit',
'help' : _("Maximum number of repository fetched"),
},
'-o' : {
'full' : '--offset',
'help' : _("Starting number for repository fetching"),
},
}
},
}
},
'monitor' : {
'category_help' : _("Monitoring functions"),
'actions' : {
'info': {
'action_help' : _("Check System"),
'connections' : ['ldap'],
'arguments' : {
'-m' : {
'full' : '--memory',
'help' : _("Check Memory"),
'action' : 'store_true',
},
'-c' : {
'full' : '--cpu',
'help' : _("Check CPU"),
'action' : 'store_true',
},
'-d' : {
'full' : '--disk',
'help' : _("Check Disk"),
'action' : 'store_true',
},
'-i' : {
'full' : '--ifconfig',
'help' : _("Ifconfig"),
'action' : 'store_true',
},
'-u' : {
'full' : '--uptime',
'help' : _("Show Uptime"),
'action' : 'store_true',
},
}
},
}
},
'tools' : {
'category_help' : _("Specific tools"),
'actions' : {}
}
}
def parse_dict(action_dict):
"""
Turn action dictionnary to parser, subparsers and arguments
Keyword arguments:
action_dict -- Multi-level dictionnary of categories/actions/arguments list
Returns:
Namespace of args
"""
# Connections
connections_available = ['ldap', 'repo', 'dns', 'firewall']
connections_enabled = []
# Intialize parsers
parsers = subparsers_category = subparsers_action = {}
parsers['general'] = argparse.ArgumentParser()
subparsers = parsers['general'].add_subparsers()
# Add general arguments
for arg_name, arg_params in action_dict['general_arguments'].items():
if arg_params['full']:
arg_fullname = arg_params['full']
del arg_params['full']
parsers['general'].add_argument(arg_name, arg_fullname, **arg_params)
else:
parsers['general'].add_argument(arg_name, **arg_params)
del action_dict['general_arguments']
# Split categories into subparsers
for category, category_params in action_dict.items():
if 'category_help' not in category_params: category_params['category_help'] = ''
subparsers_category[category] = subparsers.add_parser(category, help=category_params['category_help'])
subparsers_action[category] = subparsers_category[category].add_subparsers()
# Split actions
if 'actions' in category_params:
for action, action_params in category_params['actions'].items():
# Connections settings
if 'connections' in action_params:
for connection in connections_available:
if connection in action_params['connections']:
connections_enabled.append(connection)
if 'action_help' not in action_params: action_params['action_help'] = ''
parsers[category + '_' + action] = subparsers_action[category].add_parser(action, help=action_params['action_help'])
# Set the action s related function
parsers[category + '_' + action].set_defaults(
func=str_to_func('yunohost_' + category + '.'
+ category + '_' + action))
# Add arguments
if 'arguments' in action_params:
for arg_name, arg_params in action_params['arguments'].items():
if 'full' in arg_params:
arg_fullname = arg_params['full']
del arg_params['full']
parsers[category + '_' + action].add_argument(arg_name, arg_fullname, **arg_params)
else:
parsers[category + '_' + action].add_argument(arg_name, **arg_params)
args = parsers['general'].parse_args()
return { 'connections' : connections_enabled, 'args' : args }
def display_error(error):
"""
Nice error displaying
"""
if not __debug__ :
traceback.print_exc()
if os.isatty(1):
print('\n' + colorize(_("Error: "), 'red') + error.message)
else:
print(json.dumps({ 'error' : error.message }))
def main():
"""
Main instructions
Parse the action_dict and execute the action-specific function,
then print json or pretty result if executed in a tty :)
Returns:
int -- 0 or error code
"""
action = parse_dict(action_dict)
connections = {}
try:
# Connect to different services if the action is requiring it
if 'ldap' in action['connections']:
connections['ldap'] = YunoHostLDAP()
if 'firewall' in action['connections']:
connections['firewall'] = open('/etc/init.d/iptables', 'w')
# TODO: Add other services connections
except YunoHostError, error:
display_error(error)
return error.code
try:
if connections:
result = action['args'].func(vars(action['args']), connections)
else:
result = action['args'].func(vars(action['args']))
except TypeError:
print(_("Not (yet) implemented function"))
return 1
except YunoHostError, error:
display_error(error)
return error.code
else:
if os.isatty(1):
pretty_print_dict(result)
else:
print(json.dumps(result))
finally:
if 'ldap' in action['connections']:
connections['ldap'].disconnect()
if 'firewall' in action['connections']:
connections['firewall'].close()
# TODO: Add other services deconnections
return 0
if __name__ == '__main__':
sys.exit(main())