Easily tell git to ignore built assets

[mlocati]

When writing the source javascript/css assets, we often need to build the compiled assets.

When we commit the changes, we may want to commit only the changed source files, not the compiled files.

This is a bit of a mess at the moment.

What about adding an easy way to tell git to ignore the compiled assets?

This pull request:

• add two new npm commands:
  • npm run-script git-skip tells git to ignore the compiled assets
  • npm run-script git-unskip tells git to consider the compiled assets
• for convenience, we also call:
  • git-skip when building the assets for development (eg npm run-script dev)
  • git-unskip when building the assets for production (eg npm run-script prod)

[aembler]

Going to have @KorvinSzanto give the thumbs up on this one.

[KorvinSzanto]

Overall this looks good to merge to me. We should make sure we document this somehow somewhere so that we know where and when to add to the skippable paths.

[mlocati]

We should make sure we document this somehow somewhere so that we know where and when to add to the skippable paths.

What about 9a1bad5 ?

[mlocati]

I've had an offline discussion with @KorvinSzanto about calling automatically git-skip when building assets for development, and calling git-unskip when building assets for production.
IMHO this shouldn't be done: assets should be built by the server (see #8532), so we should work always locally with assets marked as git-skip, and we need to call git-unskip when rebasing/switching branches...

[mlocati]

Updated with 8d83e39