The Ruby/ERB way to do this?

Ruby
1

Hello, I was wondering if someone could point me to a smarter way of
doing
the following? It’s probably a Ruby basics question.

I am using ERB to generate sets of configuration files for different
environments. I imagined that I would use a different config file per
environment, that sets variables, and apply this against a list of
configuration file templates.

Currently each environment file defines a module “X” that has constants
for
each variable:
module X
MgrPort = ‘3000’
MsgPort2s = ‘4000’

The template files reference the variables like so
domain = <%= X::Domain %>

The script that calls erb.result() uses require/include to reference the
config file

require “Configs/stagingProperties”
include X

There must be a better way to do this. Is there a “Right Way” here? I’ve
perused the erb docs and the Pickaxe book but neither explicitly join
the
dots.

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2

Not sure if I totally understand your question, but I’ll try to help.

Note that if you want to, you can make your require use a variable so
that
you can vary which file to require in.

Also note that you can do your require and include in the module that
calls
erb since you can pass in a binding. The binding gives erb access to
everything that was available where ever the binding was created. So you
don’t have to put the require and inlude in the erb template.