Git ignore file mode chmod changes
git
chmod
change
core.fileMode

Recently I came across to a situation using git on ubuntu. After a chmod -R 777 on my repository all files appear to be changed.
To make git ignore file mode changed with chmod run the following command:
# git config core.fileMode false
Adding the --global flag will make it be the default behaviour for the logged in user.
# git config --global core.fileMode false