Dynamic path resolution based on project metadata

[andrewnicols]

Hi,

I'm one of the core team working on https://github.com/moodle/moodle/.

I'm trying to improve our composer integrations in coming releases and I'd ideally like to make use of composer/installers to do so.

In Moodle we have maintain a list of all valid plugin types within our repository in a combination of {{components.json}} and {{subplugins.json}} files.

At the moment none of the installers here use a list sourced from the project itself, but I wonder if that is something you would be open to.

I've pushed a commit to my fork of this repo (andrewnicols@moodlePathFromJson) as a proof-of-concept.

https://github.com/andrewnicols/installers/blob/3a0d155d3532227bee73a751e3c96e16af0df610/src/Composer/Installers/MoodleInstaller.php#L81-L136

I haven't written unit tests for this yet.

Let me know if this kind of integration would be acceptable, or whether this would be best placed into a custom installer instead.