[Rock-dev] Autoproj v2

[Sylvain Joyeux]

> As rock developer I have to understand the installation process, e.g., to be able to repair installations and thus I sometimes also take advantage of this knowledge.

If you wonder about the installation process details, ask. After
enough questions you should have an idea of how the installation
process is *meant* to work which is a more actionable information.

The three lines that you find so transparent are full of red flags:

1. manually set GEM_HOME (without setting GEM_PATH I might add)
2. access a hidden folder
3. run an unrelated command to hopefully initialize the autoproj
environment (envsh)

(1) and (2) place a lot of assumptions on autoproj's internals. How do
you know whether these assumptions actually match autoproj's, or if
you're doing something that works by accident ?

(3) is in effect exploiting a bug in autoproj.

So, my apologies if it felt like I was trying to stifle your free
speech, but even if it feels better to you to go close to the metal,
this is *not* good practice.

Sylvain