Manifest flags

Manifest flags allow user to apply conditions during generation.

To use manifest flags:

• Add a condition using Flag["flagName"] in your manifest file
• Pass a parameter -f flagName to geko during generation, i.e. geko generate -f flagName

Example of Project.swift file:

let project = Project(
    name: "MyProject",
    targets: [
        Target(
            name: "App",
            destinations: .iOS,
            product: .app,
            sources: "Sources/**/*.swift",
            // add DebugOnlyDependency only when flag `debugBuild` is present
            // `geko generate -f debugBuild`
            dependencies: Flag["debugBuild"] ? [.external(name: "DebugOnlyDependency")] : []
        )
    ]
)

TIP

Each flag internally is an environment variable with format GEKO_MANIFETS_FLAG_<flag_name>. Subscript Flag is just a wrapper to get that environment variable.