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#!/usr/bin/env python

import base64

from Crypto import Random
from Crypto.Cipher import AES
import hashlib

BS = 16
pad = lambda s: s + (BS - len(s) % BS) * chr(BS - len(s) % BS)

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# applied when back up through 'sudo openproject run backup' not working due to access denied 1045 issue
# using mysqldump instead. be sure to replace 'BACKUP_PATH/backup.sql' with desired baclup file location.

sudo mysqldump --single-transaction --add-drop-table --add-locks --result-file=BACKUP_PATH/backup.sql --host=localhost --user=openproject --password openproject

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# assume :
# - openproject installed in /opt/openproject
# - local port: 6000
# - external port: 6020

server {
   listen 6020;
   server_name SERVER_DOMAIN_NAME;
   root /opt/openproject/public;
   

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/*
example delimiters : [ !,?._'@] (including space)
*/

String[] tokens = s.replaceFirst("^[ !,?._'@]+", "").split("[ !,?._'@]+");

// to keep leading empty string
String[] tokens = s.split("[ !,?._'@]+");

// to keep trailing empty string

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import java.util.regex.Matcher;
import java.util.regex.Pattern;
import java.util.Scanner;

class Solution{

    public static void main(String[] args){
        Scanner in = new Scanner(System.in);
        while(in.hasNext()){
            String IP = in.next();

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say you have ...
- upstream : https://github.com/xxxxx/project_a.git
- origin : https://github.com/yourself/fork_project_a.git

and there is a sibling project : https://github.com/community_contributor/fork_project_a.git

1. get into your git bash under fork_project_a
2. add sibling project as new remote: 
   git remote add community_contributor https://github.com/community_contributor/fork_project_a.git
3. git fetch (to update and also make sure new remote added)

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ref: http://sushihangover.github.io/git-set-up-a-fetch-only-remote/

> git remote -v   # to see all remotes
> git remote set-url --push <remote_name> DISABLE

for example:
> git remote set-url --push upstream DISABLE

check again by 
> git remote -v

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- Django does not automatically check max_lenght limitation before save()
- Django does not automatically check choices before save() --> it's for form

for the length limitation, using

datamodel.full_clean()
datamodel.save()

can resolve it. or, override save() to enforce full_clean()
ex:

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This can be done in interactive python shell

> from django.core.management.utils import get_random_secret_key
> get_random_secret_key()

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## useful refs
* https://realpython.com/deploying-a-django-app-to-aws-elastic-beanstalk/#Create.the.Admin.User
* https://docs.aws.amazon.com/elasticbeanstalk/latest/dg/create-deploy-python-django.html


## CLI approach
1. Enter your project root (versioned with Git)
2. install awsebcli
2.1 if encountering trouble installing PyYAML, using prepackages wheel: 
3. > eb init