Question

I try to add a temporary-but-not-so-temporary file to a Git repository without adding it to the index. I don’t want to add it to a .gitignore nor to a file like ~/.gitignore_global because it would just apply for a specific repository.

Is there any way to ignore a file to be indexed in a specific repository without indexing the very fact that I want to ignore it ?

Answer 1

You can place the ignore patterns in $GIT_DIR/info/exclude so that it will be applicable to only the repo and not every repo.

From the manual:

Patterns which are specific to a particular repository but which do
not need to be shared with other related repositories (e.g., auxiliary
files that live inside the repository but are specific to one user’s
workflow) should go into the $GIT_DIR/info/exclude file.