Implement "--require path/to/file.rb" to allow the user to customize requires/setup

[Melindrea]

Related to #40 (sort of).

Not sure how high priority this should have, but the ability to in the call to the gem give a number of gems that are being used in the file(s), like the following:

csscss --compass --gems [breakpoint, bourbon, sass-getunicode]

This would for instance be useful if one does what I do: compile Sass through Grunt. I don't have a config.rb, all of my options are set in my Gruntfile.js, so the theory is that if there was support for supplying required gems, grunt-csscss could fetch requirements from the file.

[zmoazeni]

I think what I prefer is to have a switch like --require /path/to/file.rb. Then the user can require whatever gems or prepare any configurations they want. I'd rather not call it --config because they're not really configuring csscss or any options for it.

[Melindrea]

Works for me. I suddenly realised that using gems like breakpoint is not limited to compass, so found the syntax for sass:

sass -r sass-getunicode --watch sass_dir:css_dir

Which means that yeah, there really needs to be something to be able to parse Sass properly, I'd imagine.

[Melindrea]

Do something with the Gemfile if present, maybe? (inspired by #55)

[zmoazeni]

Nah, I'm not going to directly interface with bundler. What you're describing can be achieved with:

bundle install
bundle exec csscss ...

[Melindrea]

Not quite, unfortunately. You got my hopes up there a moment! =)

# Gemfile for MarieHogebrandt.se
source "https://rubygems.org"

gem "compass"
gem "breakpoint"
gem "sass-getunicode"
gem "csscss"

Style.scss

@charset "UTF-8";

//Gems from Ruby
@import "compass";
@import "breakpoint";

And when I run bundle exec csscss --compass app/styles/style.scss, I still get the error message:

app/styles/style.scss:8: File to import not found or unreadable: breakpoint. (Sass::SyntaxError)
Load paths:
  /home/marie/.rvm/gems/ruby-1.9.3-p194/gems/compass-0.12.2/frameworks/blueprint/stylesheets
  /home/marie/.rvm/gems/ruby-1.9.3-p194/gems/compass-0.12.2/frameworks/compass/stylesheets
  Compass::SpriteImporter
etc

[zmoazeni]

Yeah, once I implement the --require flag, that will work with:

bundle exec csscss --require myconfig.rb --compass app/styles/style.scss

# in myconfig.rb
require "breakpoint"
require "sass-getunicode"

# Or a shorter version
require 'bundler'
Bundler.setup

bundler doesn't auto require the gems in the Gemfile right away. You have to do it, or it will be done when booting rails.

[Melindrea]

Can you tell that I only use gems due to Sass/Compass? =)

So, if I understand how you're figuring with --require, it'd be giving it a path to a config where any required files are stated, rather than giving it a list of required gems to load?

[zmoazeni]

So, if I understand how you're figuring with --require, it'd be giving it a path to a config where any required files are stated, rather than giving it a list of required gems to load?

Yeah. There's not a great reason for csscss to manage requiring gems. It can attempt a few things, but beyond that it's better to put it in the user's control. Too many edge cases in that implementation that I would rather avoid.

[Melindrea]

Works for me. I'll explore a few things on how to use that for Grunt, since that's the case I need.

Awesome tool =)

[zmoazeni]

This will go out in the next release

[Melindrea]

And this works, assuming I also require compass in my config file, which I can live with. (If I don't, there's some issues with some of the options I'm using)

[zmoazeni]

@Melindrea I think csscss --compass --require ... will work. I'd like to deprecate the --compass flag, but I'm not positive I can yet.