What problem or need do you have?

My project spec includes a couple of extra schemes for the main iOS app that don't work when I use tuist generate MyTarget to focus on a target. I would like for these schemes to not be generated when I've focused on a subset of targets.

Potential solution

If my Project.swift file has additional context about the conditions under which it is being used, I can write code that checks whether to supply the schemes.

One way to do this would be:

1. Collect the context into a Codable struct:

public struct Context {
    /// The path to this manifest file.
    public let path: String

    /// The list of targets whose sources should be included. All targets if empty.
    public let sources: Set<String>

    /// The configuration to generate for.
    public let configuration: String?
}

2. Populate an instance of the context and serialize it as JSON
3. Include the serialized context as an argument in ManifestLoader.buildArguments(_:at:)
4. Add a context property to ProjectDescription.Environment that reads the argument and decodes the context

This context would then be available in all the manifests.

Alternatively we could avoid using Codable and pass separate arguments instead. We'd parse them using ArgumentParser in Environment to populate a context struct.

macOS version

14.5

Tuist version

4.20.0

Xcode version

15.4