Create and apply patch with Git

create_and_apply_patch_with_git

# source https://ariejan.net/2009/10/26/how-to-create-and-apply-a-patch-with-git/
git checkout -b fix_empty_poster
# do some commits to new branch
# create patch file
git format-patch master --stdout > fix_empty_poster.patch
# check stats
git apply --stat fix_empty_poster.patch
# check errors if any
git apply --check fix_empty_poster.patch
# apply it
git am --signoff < fix_empty_poster.patch