Another rewrite
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README.md
28
README.md
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# Void Service Control (VSC)
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## A simple script that will allow you to manage runit services in Void Linux
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### Install:
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**You can install vsc using pip:**
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```bash
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$ pip install void-service-control
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```
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---
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or by downloading the pre-built binary from the **[releases](https://git.orudo.ru/trueold89/void-service-control/releases)** page
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***
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### Usage:
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**Enbale service:**
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```
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vsc e <service_name>
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```bash
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$ vsc e <service_name>
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```
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**Disable service:**
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```
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vsc d <service_name>
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```bash
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$ vsc d <service_name>
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```
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**Print help**
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```
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vsc --help
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```bash
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$ vsc --help
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```
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*All commands require root privileges*
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---
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***
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## Example:
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129
vsc.py
129
vsc.py
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#!/usr/bin/python3
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# -*- coding: utf-8 -*-
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# Modules
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import os
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import subprocess
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import sys
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# Import
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import os, subprocess, sys
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# Vars
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allsv_path = '/etc/sv/'
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enabledsv_path = '/var/service/'
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allsv = os.listdir(allsv_path)
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enabledsv = os.listdir(enabledsv_path)
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# Const
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SV_PATH = '/etc/sv'
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ENABLED_PATH = '/var/service'
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# Functions
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# Access
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def su():
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out = subprocess.run('whoami', shell=True, text=True, stdout=subprocess.PIPE)
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user = out.stdout[:-1]
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if user == 'root':
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return True
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else:
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return False
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## Help
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# Print help message
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def helpmsg():
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msg = '''
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print('''
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Usage:
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---
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vsc {e/enable/on/up} <service_name> - Run service and add it to autostart
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vsc {d/disable/off/down <service_name> - Stop service and remove it from autostart
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---'''
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return msg
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---
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''')
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sys.exit(1)
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## Access
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def su():
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user = subprocess.run('whoami', shell=True, stdout=subprocess.PIPE, stderr=subprocess.PIPE, text=True)
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if user.stdout[:-1] == 'root':
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return args()
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# Check exec args
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def args_check():
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args = sys.orig_argv[2:]
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if len(args) == 2:
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return args
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elif len(args) == 1 and args[0] in ['--h','--help']:
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helpmsg()
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else:
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return 'Access denied'
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return False
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## Service
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def exec(option, service):
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if option == 'on':
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if service in enabledsv:
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return 'Service alredy enabled'
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if service in allsv:
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subprocess.run(f'ln -s {allsv_path}{service} {enabledsv_path}', shell=True)
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return f'Service {service} successfully enabled'
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if not(service in allsv):
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return f"Service {service} doesn't exist"
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if option == 'off':
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if not(service in allsv):
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return f"Service {service} doesn't exist"
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if not(service in enabledsv):
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return f'Service {service} has already been disabled'
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if service in enabledsv:
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subprocess.run(f'rm {enabledsv_path}{service}', shell=True)
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return f'Service {service} successfully disabled'
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# Get argv
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def getargs():
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global service
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global option
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option = sys.argv[1]
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service = sys.argv[2]
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return options(option)
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# Args
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def args():
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if len(sys.orig_argv[1:]) == 2:
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if sys.orig_argv[2] == '--help':
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return helpmsg()
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elif len(sys.orig_argv[1:]) == 3:
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return getargs()
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# Check availability
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def availability(service, action):
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all = os.listdir(SV_PATH)
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enabled = os.listdir(ENABLED_PATH)
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all = service in all
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if all == False:
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raise Exception(f"Service '{service}' doesn't exist")
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if service in enabled:
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if action == 'on':
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raise Exception(f"Service '{service}' already enabled")
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elif action == 'off':
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return True
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else:
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return 'Invalid usage, see --help'
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if action == 'off':
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raise Exception(f"Service '{service}' already disabled")
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elif action == 'on':
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return True
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def options(option):
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options = {
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'on': ['enable','e','on','up'],
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'off': ['disable','d','off','down']
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}
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for i in options.keys():
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if option in options.get(i):
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return exec(i,service)
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return f'Invalid option: {option}, see --help'
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# Main
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def main():
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try:
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args = args_check()
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if args == False:
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raise Exception('Bad usage. See --help')
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if su() == False:
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raise Exception('Access denied')
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action, service = args
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if action in ['enable','e','on','up']:
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if availability(service,'on'):
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subprocess.run(f'ln -s {SV_PATH}/{service} {ENABLED_PATH}/', shell=True)
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print(f"Service '{service}' successfully enabled")
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if action in ['disable','d','off','down']:
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if availability(service,'off'):
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subprocess.run(f'rm {ENABLED_PATH}/{service}', shell=True)
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print(f"Service '{service}' successfully disabled")
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except Exception as ex:
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print(ex)
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sys.exit(0)
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print(su())
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if __name__ == '__main__':
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main()
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