Hello, I would just add: for renaming packages prefer refactoring over transformation. `RBRenamePackageRefactoring` is the class that's called when you invoke rename package from the UI. `RBRenamePackageTransformation` is unused class. While it does work it represents code duplication and might not be present in Pharo in the future. Balša ------- Original Message ------- On Tuesday, May 9th, 2023 at 10:18, Christophe Demarey <christophe.demarey@inria.fr> wrote:

Hi Steffen,

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Le 8 mai 2023 à 13:40, Steffen Märcker merkste@web.de a écrit :

Hi,

is there a way to create an empty package programatically,

RPackageOrganizer default createPackageNamed: #packageName

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and how do I rename a package programmatically?

You can take a look at RBRenamePackageTransformation class comment.

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Is there a documentation about packages and how exactly their naming scheme relates to tags?

You can get tags with: (RPackageOrganizer default packageNamed: 'RPackage-Core') actualClassTags

Inspecting one tag, you can ask its real name: self categoryName "#'RPackage-Core-Base’"

As you can see, a package tag is prefixed by the package name and a dash.

There are some comments in RPackageOrganizer and RPackage.

Christophe