issue with history

[srinathshil]

This question is in reference to Atlassian Documentation: Frequently Asked Questions

i committed some changes in a file , it was successfully committed. but after some day i see those commit was not there and commit history was also not there, is there any command that can delete the commit history. And also who deleted the committed history  can i know it?

[Tim Crall]

The only way to delete a commit is to do a force push (git push -f) of a history that doesn't include it.

You can prevent this on specific branches under "Branch Permissions".  I think that best practice is to disallow force pushes (or "rewriting history") on long-lived branches such as master and (if you use it) develop.

I'm not sure that there's a specific way to see who did the force push, but I'd be suspicious of the authors of any commits made after yours. 

[srinathshil]

can you please provide me screenshot for Branch Permissions" or "rewriting history" setting

[Tim Crall]

Screen Shot 2016-06-02 at 9.01.59 AM.png

Screen Shot 2016-06-02 at 9.02.48 AM.png