RAA - rctool/1.1.0

RCtool is a small tool which makes/updates rcfiles automatically.

There is a rcfile in software each.
For example, it is .zshrc in zsh, .emacs in Emacs and so on.

Please think about the scene which introduces a new EmacsLisp program into Emacs.
You copy a .el file in the directory which is in load-path.
You have to write setting in .emacs last.

I think that update of .emacs is easy if you introduce it once.
However, please imagine a scene upgrading an EmacsLisp program.
When the EmacsLisp cord is largely modified, and setting did not have compatibility either, a user must modify .emacs by hand one by one.
Changing .emacs by hand is boring and error-prone; changing .emacs automatically without any notification is extremely rude.

RCtool takes over this troublesome work.
RCtool does the following work separately.

* RCtool makes the rcfiles based in contents of "the definition script", and modified one part of rcfiles in a backup directory.
* RCtool shows the difference between the original and the modified if you need it.
* RCtool overwrites with rcfiles last.

A user understands which part changed clearly.

A developer modifies the definition script and can offer appropriate rcfiles to a user.