[rewrite] Piecemeal usage

[tivac]

There have been multiple calls for mithril to be made more modular, and I think there's some value in that. With the way the rewrite branch has been structured that's now possible, so here's an approach at defining how you might actually use just certain pieces of mithril.

This continues from the previous discussion in #1044 (comment)

// Everything
var m = require("mithril");

// Just the hyperscript function
var m = require("mithril/m");

// Just the router
var router = require("mithril/router");

This complicates manual redrawing some since m.redraw() won't just be stuck on m for users doing the piecemeal requires, but that can probably be another module that can be grabbed if necessary.

var mount = require("mithril/mount");
var redraw = require("mithril/redraw");

mount(document.body, Component);

setTimeout(redraw, 1000);

[hugufc]

I think that router requires a redraw as a peer dependecy, whatever it is mithril or third party. I was thought on plugRedraw() but it's very verbose.

[dead-claudia]

@hugufc I'm not sure how useful the router is without Mithril itself. The routing is inherently coupled mainly because of the API itself, and there's hardly a use case. It's simple enough you could adapt it to something else, though (and it could be done within a few hours max unless you all have very testing requirements comparable to NASA's).

[lhorie]

update: I merged @sebastiansandqvist's PR as a starting point for this and made a few changes

Currently, these piecemeal modules exist:

• mithril/route
• mithril/mount
• mithril/stream
• mithril/render
• mithril/redraw

Caveat: the last two (render and redraw) expose their parent objects and not the methods themselves, so consider them work in progress. The reason I haven't exposed those two properly has to do w/ some issues in bundler that I need to fix...

I haven't aliased mithril/render/hyperscript and mithril/render/trust but those should be easy to do if anyone wants to send a PR

[dead-claudia]

With the current state of things, I'd consider this done.