Implicit 'projectPath' for Broccoli Plugin

[chadhietala]

This makes the broccoli plugin actually usable within an ember-cli project. Prior to this commit we assuming passing an entire project root into the plugin however in practice just the src directory will be used. This moves to an implicit assumption that the inputPath is the root of the project. This means the tree that is passed to the plugin must contain the package.json.

[rwjblue]

Not sure how this wouldn’t cause recursive rebuilds on systems without watchman because the project tmp would be inside this root tree being passed in, and change events in ./tmp would trigger a rebuild.

What am I missing here?

[chadhietala]

You need to merge the package.json in. The MUDelegate requires a package.json.

[rwjblue]

So you are saying we would clone the package.json into an unwatched tree, funnel src (as a watched tree), then merge the two together? In other words, we would not be passing in the project root as the root tree, we would just be making it seem like that’s what we are doing?

[chadhietala]

@rwjblue Correct. @tomdale Likely can talk more about why the package.json needs to be there at all.

[tomdale]

The package.json is needed to infer the module prefix name.