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Scope Development Procedures

Scope development procedures

Here you can find short procedures for common processes developers need to know about when working with scopes.

Creating a scope

In the Ubuntu SDK, simply create a new project using the Unity Scope Template.

File > New File or Project > Unity Scope Template

Tip: During project creation the build kit wizard page displays. Note that when you build the scope, the generated build is placed by default in the parent directory in a directory that starts with ‘build-’ and completes with the project name followed by ‘-Desktop-Default’. For example, if your scope project is named ‘myscope’, your build directory is ../build-my-scope-Desktop-Default.

Tip: For help installing the Ubuntu SDK and creating projects, see Ubuntu SDK Tutorials.

Opening a scope SDK project

Scope projects use CMake for building. CMake projects have a CMakeLists.txt file in the root directory (and in many other project directories).

You can open scope projects from the Ubuntu SDK with the Ctrl + O shortcut and then navigating to and selecting the CMakeLists.txt file in the project’s root directory.

Opening a scope branch in the SDK as a project

If you have a branch or directory that is a scope source tree that is not an already an SDK project, you can open it and create an SDK project from it, as follows:

  1. Ctrl + O to open a file or project (or use the FileOpen File and Project menu).
  2. Navigate to and select the CMakeLists.txt file in the source tree, then click the Open button.
  3. In the Configure Project dialog that displays, click the the Configure Project button.

Building a scope

In the Ubuntu SDK, simply select  Build > Build Project MYSCOPE. (You can also use Ctrl + B) This creates the build directory, which by default is next to the scope project directory and starts with ‘build-’, as described above.

You can also build from the terminal. Move to the build directory (after it is created by building at least once from the SDK) and run: cmake && make

Successful builds generate the following important files in the separate build directory:

  • BUILDDIR/src/llibMYSCOPE.so: the scope’s shared object used by clients that call the scope
  • BUILDDIR/src/llibMYSCOPE.ini: the file used to launch the scope, as discussed next.

Running a scope

You can run your scope locally from your build directory (even if your Desktop uses Unity 7).

You need the unity-scope-tool and unity8-fake-env debian packages installed:

$ sudo apt-get install unity-scope-tool unity8-fake-env

Tip: There are plans to install this package automatically with the SDK by a dependency soon, so it may already be installed for you. Running the above command is not a problem in either case.

To run a scope from terminal, simply use the unity-scope-tool followed by the path to your scope .ini file (which is in src/):

$ unity-scope-tool src/myscope.ini

Tip: There are plans to allow running the scope from the SDK with Ctrl + R.

This runs the scope in a window with the scope’s search results displayed on the left and some development features on the right.

Here’s a screenshot of a scope run from the unity-scope-tool.

  • The scope name displayed in the header is derived from the .ini file
  • The left half of the run window is the scope. (Only this displays during execution of a deployed scope.)
  • The right half is provided by the unity-scopes-tool for development purposes. It allows you to modify the scope in various ways. For example, you can click Override category to edit a Category template that controls how results are displayed. You can from “grid” to “carousel”, although this has no visible effect when there is only a single result (as with the a new default scope project) . But try it later when your scope generates lots of results.