Add configuration feature for generator and subgenerator pre/post hooks.

[spaceribs]

This is a feature request for implementing generator pre and post hooks for running shell or node commands when scaffolding applications. It was originally opened here: yeoman/yeoman#1069

In that issue, we determined that a file such as "Yohooks.js" could be placed in the same folder and could be used for the following test cases:

• Enforcing good standards before building more
• Making sure that yeoman subgenerators have associated version control commits so they can be rolled
• Being able to automatically reformat templates after they have been generated.
• Being able to run a preflight check before yeoman builds.

The file itself is made to be environmental, and not something that is integrated directly into a generator per say.

[addyosmani]

cc @SBoudrias

[SBoudrias]

I don't think this would fit in our next priorities (PR are welcomed though), but we can keep the idea.

Although, using a hook file is not something I'd agree with. At most, maybe we could allow hooks being passed as action on the terminal: yo angular --after ./hooks/post-yo.js

[spaceribs]

Makes sense priority-wise, but I think there are quite a few use cases that should cover many of the features that should be relegated to other node applications. One of the features that I know has been suggested before in the past is the fact that the yeoman scaffolding engine creates everything in with 2 spaced tabbing, it would be great if I could automate that to my liking after the generator is done, or have a standard commit message for scaffolding specific changes that isn't entirely manual.

[SBoudrias]

Check this issue: #285

Any help is welcome. The architecture is there and customizing spacing should be trivial to implement. Generator-BBB does it, you'd only need to add this into core.

[ryandeussing]

+1 for being able to modify indents (type, number) upon scaffolding a new app

[github-actions]

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