Git Ignore files

git_ignore_files.txt

There are 4 ways to ignore git files:

1. The most basic, add to .gitignore

2. Not yet tracked file, and don't want to add to .gitignore, can add to .git/info/exclude   
   This will just ignore files locally and the settings will not be shared with others

3. Already tracked files, and has already been modified locally, want to ignore local changes

      git update-index --[no-]skip-worktree FILE_NAME  // works for one file
      find ./ -name "*.launch" -exec git update-index --[no-]skip-worktree '{}' \;  // works for multi-files
      
   This will always allow you to get changes from remote repo, and keep your local files ignored. Ideal for launchers.
   If you want to put files back to normal, just use --no-skip-worktree.

4. Already tracked files, not added to .gitignore at the first time, and then added to .gitignore

      git rm --cached [-r] FILE_NAME