ruby on rails - why does git recommits all files even the ones that I did not change -

i contributing project , forked repository.

i have spent few days on coding new features , when commit changes github every single fine gets recommited.... if have not changed file..

why happening, new vagrant , git.

my workflow following:

cd project:

/rails_projects/my_project  vagrant  vagrant ssh  cd /vagrant 

*****do changes here code

git add . git commit -m "asdfsdf" git push 

is there missed vagrant or git? on windows running suggested ubuntu virtual box. maybe had create virtual box in parent directory instead of in directory of project? or deal? or supposed run git commands different directory?

thanks

so ended happening had

cd .. 

to out of /vagrant file , also

exit 

to out of vagrant ssh session.

then committed github , fine. thanks!