Github

Migrations: https://help.github.com/enterprise/2.11/admin/guides/migrations/

mirroring: https://help.github.com/articles/duplicating-a-repository/

https://help.github.com/articles/about-github-mirrors/

clean history

 git filter-branch --force --index-filter \
'git rm --cached --ignore-unmatch PATH-TO-YOUR-FILE-WITH-SENSITIVE-DATA' \
--prune-empty --tag-name-filter cat -- --all

p4merge

https://gist.github.com/tony4d/3454372

bots and push

https://platform.github.community/t/repositories-which-have-protected-branches-with-push-restrictions-have-no-ability-to-grant-push-rights-to-integrations/1376

mirror

count lines of code

git ls-files | xargs wc -l

monitoring

https://github.com/vegasbrianc/github-monitoring - grafana montioring

hooks

https://github.com/typicode/husky/issues/124 - skipping hooks for CICD

migrating directories with history

http://gbayer.com/development/moving-files-from-one-git-repository-to-another-preserving-history/

http://blog.neutrino.es/2012/git-copy-a-file-or-directory-from-another-repository-preserving-history/

DESTINATIONPATH=~/tmp/mergepatchs
SOURCE=node
git format-patch -o $DESTINATIONPATH --root $SOURCE

cd to new repo

git checkout -b init
SOURCE=node
git am --ignore-space-change --ignore-whitespace --3way $DESTINATIONPATH/*.patch

fix diverged histories

git fetch upstream
git branch -u upstream/master

git rebase --onto upstream/master

# or

git pull --allow-unrelated-histories upstream master

restore deleted file

https://stackoverflow.com/questions/953481/find-and-restore-a-deleted-file-in-a-git-repository?rq=1

git rev-list -n 1 HEAD -- <path>
git checkout <deleting_commit>^ -- <file_path>
# git checkout $(git rev-list -n 1 HEAD -- "$file")^ -- "$file"
# git checkout $(git rev-list -n 1 HEAD -- "$file")~1 -- "$file"