Install require-dev by default

[igorw]

In context of the root package, in most cases you will want to develop something with that package. So it really would make sense to just install the dev dependencies by default, and have --no-dev or --no-require-dev to disable if needed.

FWIW: This is the behaviour of NPM.

[Seldaek]

I agree. Although I think we should fix the require-dev issues (that package not found thing) before doing the change. @naderman thoughts?

[igorw]

What's the status on this? Has the require-dev thing been resolved?

[kingcrunch]

As a suggestion (I made this in the now closed duplicate): I would prefer to set the default in ~/.composer/config.json and enable/disable the development packages with --dev, or --no-dev respectively.