List of available build targets in machine-readable format

[m0nac0]

Use case

Flutter (IDE) tools may want to access the list of available build targets (which users can see by running flutter build).

Is there currently any way to get a machine-readable list of available build targets? For available devices this is possible by running flutter devices --machine or by using flutter daemon. I haven't been able to find anything similar for build targets.

Proposal

If there is currently no such way, I'd like to propose adding the possibility to retrieve a list of available build targets
in a machine-readable format from the flutter tool.

[m0nac0]

Alternatively, developers can manually maintain a static list of which build targets are supported on which platform.
Disadvantages are:

• needs to be kept in sync with the build targets supported by flutter
• does not respect feature flags (e.g. to enable desktop support)

[christopherfujino]

This is a good idea for a new feature request.