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Frédéric Delbos fdelbos

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@fdelbos
fdelbos / random_string.sql
Created February 23, 2024 05:56
A function to generate a random URL safe string with PostgreSQL
create or replace function random_string(nb_bytes integer)
returns text
as $$
select
trim('='
from
(
select
replace ( (
select
@fdelbos
fdelbos / golang_android.md
Last active April 20, 2023 06:18
Build and install a go library for android studio
@fdelbos
fdelbos / days.sh
Created February 18, 2023 02:15
A shell script to calculate the days between 2 dates with postgres
#!/bin/sh
echo "Use the following format: yyyy-mm-dd (ex: 2022-01-15)"
echo "First day: "
read FIRST_DAY
echo "Last day: "
read LAST_DAY
@fdelbos
fdelbos / Configuring Qt 6.x and CMake for windows 10.md
Last active February 10, 2023 03:58
Configuring Qt 6.x and CMake for windows 10

Configuring Qt 6.x and CMake for windows 10

If you want to create a redistributable installer for a Qt app with Cmake then youve come to the right place... I ve been struggling to make Qt work with cmake on windows, and finally figure out something that works:

  1. Go ahead and download Qt: https://www.qt.io/download-qt-installer

  2. Start the install and select "Custom installation" image11

@fdelbos
fdelbos / STM32 project setup.md
Last active February 10, 2023 03:59
STM32 project setup with cmake and CubeMX

STM32 project setup

Tools

Install gcc arm none eabi

We will install gcc in an upper directory, so that we can reuse it in all our projects

  • create the dir: mkdir stm32 && cd stm32
  • go to the download page and find the latest version



  


  




    


          
    

      

        
        

          

              @fdelbos
          

          

            
                fdelbos
                / .bashrc
            
            

              Last active
              June 7, 2020 08:49
            

              
                base docker config files
              
          

        

      

        

  

    
    


        



  


  

        

          
          BLOCKSIZE=m;    export BLOCKSIZE
        

        

          
          PAGER=less;     export PAGER
        

        

          
          

        

        

          
          export CLICOLOR=1
        

        

          
          export LSCOLORS=GxFxCxDxBxegedabagaced
        

        

          
          export HISTCONTROL=ignoreboth:erasedups
        

        

          
          

        

        

          
          alias l='ls -lah'
        

        

          
          alias c='cat'
        

        

          
          alias e='emacs'
        

  





    


  




    


          
    

      

        
        

          

              @fdelbos
          

          

            
                fdelbos
                / .emacs
            
            

              Last active
              July 6, 2018 08:10
            

              
                be .emacs
              
          

        

      

        

  

    
    


        



  


  

        

          
          ;; melpa
        

        

          
          (require 'package)
        

        

          
          (add-to-list 'package-archives '("melpa" . "https://melpa.org/packages/"))
        

        

          
          (package-initialize)
        

        

          
          

        

        

          
          ;; theme
        

        

          
          (load-theme 'manoj-dark)
        

        

          
          

        

        

          
          

        

        

          
          (global-linum-mode t)
        

  





    


  




    


          
    

      

        
        

          

              @fdelbos
          

          

            
                fdelbos
                / encryption.js
            
            

              Created
              October 29, 2017 16:09
            

              
                a quick way to aes encrypt with node
              
          

        

      

        

  

    
    


        



  


  

        

          
          const crypto = require('crypto');
        

        

          
          

        

        

          
          const IV_LENGTH = 16;
        

        

          
          

        

        

          
          class Encryption {
        

        

          
          

        

        

          
          	constructor(b64Key) {
        

        

          
          		this.key = Buffer.from(b64Key, 'base64');
        

        

          
          	}
        

  





    


  




    


          
    

      

        
        

          

              @fdelbos
          

          

            
                fdelbos
                / s3_image_upload.go
            
            

              Last active
              August 29, 2015 14:20
            

              
                Resize an image, create a thumbnail, compress and uploads to S3
              
          

        

      

        

  

    
    


        



  


  

        

          
          package main
        

        

          
          

        

        

          
          import (
        

        

          
          	"bytes"
        

        

          
          	"compress/gzip"
        

        

          
          	"fmt"
        

        

          
          	"github.com/awslabs/aws-sdk-go/aws"
        

        

          
          	"github.com/awslabs/aws-sdk-go/aws/awsutil"
        

        

          
          	"github.com/awslabs/aws-sdk-go/service/s3"
        

        

          
          	"github.com/hyperboloide/pipe"
        

  





    


  




    


          
    

      

        
        

          

              @fdelbos
          

          

            
                fdelbos
                / gist:230c8829b263fc95430c
            
            

              Created
              March 8, 2015 12:04
            

              
                encrypt a file 
              
          

        

      

        

  

    
    


        



  


  

        

          
          # encrypt
        

        

          
          openssl enc -aes-256-cbc -in myfile.tar -out myfile.tar.enc
        

        

          
          

        

        

          
          # decrypt
        

        

          
          openssl enc -aes-256-cbc -d -in myfile.tar.enc -out myfile.tar