Qbs Manual

Qbs 1.15.0

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# SubProject

Adds a project from a different file. More...

- List of all members, including inherited members

## Properties

- filePath : path
- inheritProperties : bool

## Detailed Description

A SubProject item is used to add a sub-project that is defined in a separate file. Additionally, properties of the sub-project can be set without modifying the separate project file.

The following example adds a sub-project defined in `subdir/project.qbs` and overrides its name.

      Project {
          SubProject {
              filePath: "subdir/project.qbs"
              Properties {
                  name: "A sub-project"
              }
          }
          ...
      }

A typical use case for SubProject items is to conditionally include sub-projects. The following example pulls in the tests sub-project if and only if the `withTests` property is `true`.

      Project {
          property bool withTests: false
          SubProject {
              filePath: "tests/tests.qbs"
              Properties {
                  condition: parent.withTests
              }
          }
          ...
      }

If you do not need to set any properties on the sub-project, you can also use the Project.references property, the same way you would for a product.

      Project {
          references: "subdir/project.qbs"
      }

is equivalent with

      Project {
          SubProject {
              filePath: "subdir/project.qbs"
          }
      }

It is also possible to nest Project items directly in the same file.

## Property Documentation

filePath : path

The file path of the project to add as a sub-project. If the top-level item in this file is a Product, it gets wrapped automatically in a new project.

Default: empty

inheritProperties : bool

Determines whether the sub-project should inherit the properties of the surrounding Project. You can use this feature to share global settings between projects and sub-projects.

Default: `true`

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