git patch from multiple commits
The purpose of the make a patch file is that we want our specific git commit(s) to apply to other git repo.
Users could apply the patch file(s) to migrate OMADM related code.
work through：checkout to the commit that we want to start with.
→ cherry-pick related commit ID(here we do git log --oneline | grep -aE "omadm")
→ git format-patch [first commit id(included)]^..[lastcommit id] --stdout > [file_name].patch
Build Version：SC60_Android9_R05_r029
Steps.
1.git status
to make sure git repo is good to go
2.git checkout d504a83f02
3.git cherry-pick 105f8acf76
git cherry-pick a8bfe9d80a
git cherry-pick ea4d1b92fa
git cherry-pick 76e11f7778
collection for specific commit(s)（this si the way to make a git patch from multiple commits at different points in history）
4.git log --pretty=format:"%h - %an, %ar : %s"
make sure commit(s) are listed by time after cherry-pick(s)
5.git format-patch d504a83f02ca2e664a6b922a64f37a78c0a4a190^..9cfc641eae --stdout > Omadm_migrating_SC60_Android9_R05_r029.patch
choose the first commit id and the last commit id then patching all of them.
6. using patch file
git am patch/OMADM_migrating_SC60_Android9_R05_r029.patch
double-check the commits that have applied to the git repo
Congratulations! you have made the patch file
