Git: hide/remove files never to be versioned

In case you have files already added to the repository, but need to remove/ignore them, follow these steps:

1. Move those files somewhere out of the repository.
2. Make a commit, which would delete those files from the repository
3. Move those files back to the repository to the place where they have been
4. Make a commit, but now instead of adding those files to the repository, right click on those files. Select Add to ignore list → By file name. The option to which .gitignore you add those is irrelevant, but you can look up the difference on the Internet.

Create a text file called .gitignore in your root folder and add lines like the following to exclude files:

*.obj
test.c

Then add .gitignore to your Git repository and commit:

$ git add .gitignore
$ git commit .gitignore

You need to investigate .gitignore files.

git help gitignore

TortoiseGit can add files to the ignore list with many options.

Right click on a file in a repository → TortoiseGit → Add to ignore list → by filename / by extension

A dialog shows to choose options:

Ignore type

This file only (match absolute name),

Recursive (match same name)

Ignore file

.gitignore in root directory (need to commit)

.gitignore in included directory (need to commit)

.git/info/exclude (like a configuration file, stored locally)

See also: Manual entry, Chapter 2. TortoiseGit Daily Use Guide, Ignoring Files And Directories.