How to use gitignore on c9.io for adding .c9revisions/ folder

Question

How can i edit gitignore on Cloud9 (c9.io) so i can add the .c9revisions/ folder to it to avoid adding it to my repo on github.

Everytime i use git config --global core.excludesfile ~/.gitignore_global it just does not do anything, can anyone help me out with that, thank you.

Answer 1

That Google+ tips mentions:

tip: edit your .gitignore file even though it doesn't show in the "project files":

At the command line, simply enter:

open .gitignore

and see the file display and edit in a new tab.
Save, commit, etc.

From this issue, it looks like Cloud9 is still not ignoring automatically the .c9revisions folder (and the settings.xml, and everything else related to C9).

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The OP Sergio Robledo Arango mentions he had to create that file: