Add nodejs instalation

[ronflima]

Add installation of the latest version of nodejs. If possible, from the sources.

[caiotarifa]

I built the code. But first of all we'll need write a Python installation (which is a Node dependency).

Btw, we need to improve the way that our script handles internal dependencies.

#!/bin/bash

install_node() {
  version="0.10.31"
  dependencies=("python")

  # Downloading
  wget -O ${sources}/node-v${version}.tar.gz "http://nodejs.org/dist/v${version}/node-v${version}.tar.gz"

  # Extracting
  tar xzvf ${sources}/node-v${version} -C ${sources}
  cd ${sources}/node-v${version}

  # Compiling
  ./configure
  make -j8
  make install

}

Could you re-validate this?

[ronflima]

Instead of downloading directly, it should check first if it has already downloaded the sources. Second, it should always force installation on /usr/local directory instead of leaving it freely. I know that automake/autoconf always try to install on local but it is a better practice to tell where things are. Everything should be forced to /usr/local, even dependencies. It is good to avoid conflicts with mainstream versions.

[ronflima]

Just got an idea. The dependency should be described as a normal installation module. Even a dependency can have lots of other dependencies, like libraries, executables, data files and so forth, describing a tree. If we keep it simple, i.e., each dependency as a normal module to install, dependency tracking is done at the installation script that spans a decision tree. I believe that this design is pretty straightforward and dumb simple.

[caiotarifa]

I liked the dependencies idea be "internal modules".

I believe this is one of the most important thing for the evolution of our tool, it'll promote the removal of packages installers (like apt-get, yum, pacman, etc...) and improve the compatibility of Katchum in many other distros.

Complementing your suggestion: it'd be important to implement others checklists to optimize the workflow if something happens, as a power failure or internet. The users could get frustrated if they needed to start the whole process from the beginning.