Check dependency status before invoking psc?

[hdgarrood]

I often forget to bower i before I pulp build. It might be nice if pulp checked that the dependencies listed in bower.json were coherent with what is installed in bower_components before it invoked any of the compiler programs (psc, psc-bundle, etc).

[bodil]

I wouldn't want that to be a strict requirement, but if you're able to perform a test like that cheaply (ie. no noticeable slowdown) then I wouldn't be opposed to printing a warning message about it.

[garyb]

Yeah, I'm not sure there's a great way of doing this without writing your own check. Invoking bower to do anything is slow as it checks whether it needs updating periodically, and also checks versions with the registry too when doing bower list.

[hdgarrood]

Bower has the --offline flag to prevent it from doing that, psc-publish uses this.

[garyb]

Oh right, nice! I wish I'd known about that earlier.

[hdgarrood]

Note to self: bower list --offline --json seems to be what we want, but isn't amazingly fast. It takes 1.34s for me on pulp as of 10.0.0, which has quite a few purescript dependencies but not that many. The output includes a missing: true for packages that haven't been installed.

[hdgarrood]

I'm not going to get around to this any time soon and it doesn't look as if anyone else will, so closing.