# Gitignore#

## TLDR#

1. echo "_justme*" >> ~/.gitignore
2. git config --global core.excludesfile '~/.gitignore'
3. Add files and folders with prefix _justme in any repo and they’ll always be ignored

## Longer version#

As a data scientist I regularly make notebooks for some scratch analysis. I don’t necessarily want to delete these. However, I also don’t want to commit them to the repo and share them with my collaborators. Nor do I want to keep them popping up in my ‘untracked’ files. I also don’t want to pollute the project’s .gitignore file with my convention of naming local notebooks.

Today I found a solution on stackoverflow: a local gitignore file for all you projects. To do this, we first add our preferred prefix for our private files to a global gitignore file. In my case I add _justme* to ~/.gitignore. To make sure all our projects know where to find this global gitignore file we then add the following section to our ~/.gitconfig file:

 [core]
excludesfile = ~/.gitignore


Finally, we can test our solution by adding any file or folder that starts with _justme* and see that it does not occur in our untracked files. Enjoy!

## Alternative solution#

Source: Mark Land

Make a folder in your project just for you (e.g. _justme/) and add with a gitignore file containing "*" to it, now that folder is ignored. The plus side of this solution is that there’s no global gitignore magic going on. Possible downsides are that you can only have these private files in that folder and that you have to set this up for each project. I think both solutions are fine.

cd <project_root>
mkdir _justme
echo "*" >> _justme/.gitignore