joeyates/imap-backup v16.3.0

Add an ERB Configuration Option

on GitHub

This release adds an --erb-configuration option to allow the use of ERB templating instead of a plain JSON configuration file.

This allows a way to keep passwords, and other sensitive information out of configuration files.

An ERB template file (config.json.erb) might look like:

    {                                                                              
      "accounts": [
        {              
          "username": "user@example.com", 
          "password": "<%= ENV['IMAP_PASSWORD'] %>",
          "server": "imap.example.com"
        }                                                                          
      ]
    }                  

N.B. As the Ruby code in the ERB blocks is executed, this approach introduces the risk of arbitrary code execution, so an ERB template configuration modifiable by a third party should be carefully vetted before being used.