meson/docs/markdown/snippets/introspect_deps_no_bd.md

introspect --scan-dependencies can now be used to scan for dependencies used in a project

It is now possible to run meson introspect --scan-dependencies /path/to/meson.build without a configured build directory to scan for dependencies.

The output format is as follows:

[
  {
    "name": "The name of the dependency",
    "required": true,
    "conditional": false,
    "has_fallback": false
  }
]

The required keyword specifies whether the dependency is marked as required in the meson.build (all dependencies are required by default). The conditional key indicates whether the dependency() function was called inside a conditional block. In a real meson run these dependencies might not be used, thus they may not be required, even if the required key is set. The has_fallback key just indicates whether a fallback was directly set in the dependency() function.