• Works on MacOS, not tested elsewhere.
• Needs: git, xargs and sed.

From the root folder of the project:

1. git grep -l 'old_name' | xargs sed -i '' -e 's/old_name/new_name/g'

2. git grep -l 'OldName' | xargs sed -i '' -e 's/OldName/NewName/g'

3. mv ./lib/old_name ./lib/new_name

4. mv ./lib/old_name.ex ./lib/new_name.ex

   If you have a similar folder structure in the tests folder, you probably also need:

5. mv ./test/old_name ./test/new_name

There is not a command for renaming a project. I have however had to do so a couple times in the past, and in general global find and replace works really rather well. Just also move any directories named paper and you’re done.

A global find+replace works a lot better in Elixir than in most OOP-languages, because you always refer to a certain piece of code the same way: ModuleName.function_name. And structs use the ModuleName as well.

In OOP-languages, you can only hope that some object isn’t referred to under a different name.