truncate-data-commit-history.txt

echo NOTE: manually run the lines below one by one, and perform the manual tasks
echo this is not fully automated!!!

exit 0

#
# 0. backup original Repo!!!
#

#
# 1. Backup as new GitHub repo
#

# create new repo at GitHub.com
https://github.com/entorb/COVID-19-Coronavirus-German-Regions-OLD-DATA-BACKUP-230831

# clone orig repo into a new dir
f:
mkdir covid
cd covid

wget https://raw.githubusercontent.com/newren/git-filter-repo/main/git-filter-repo

git clone git@github.com:entorb/COVID-19-Coronavirus-German-Regions.git
cp -r COVID-19-Coronavirus-German-Regions COVID-19-Coronavirus-German-Regions-OLD-DATA-BACKUP-230831

cp COVID-19-Coronavirus-German-Regions/.git/config config

cd COVID-19-Coronavirus-German-Regions-OLD-DATA-BACKUP-230831

# removing git workflows using git-filter-repo
python3 ../git-filter-repo --prune-empty always --invert-paths --path .github --path maps/out

# modify files
cp ../config .git/config
sed -i -e 's/COVID-19-Coronavirus-German-Regions/COVID-19-Coronavirus-German-Regions-OLD-DATA-BACKUP-230831/g' .git/config

git push -f

#
# 1.2 in case the repo update is > 2GB, the commits need to be pushed in smaller chunks
#

# remote: fatal: pack exceeds maximum allowed size (2.00 GiB)

# get id of inital commit
git log --pretty=oneline --reverse | head -1
5265fb3292c3d034ebc53a88c067431c3a52a53e

# push initial commit
git push origin 5265fb3292c3d034ebc53a88c067431c3a52a53e:refs/heads/master
git log --pretty=oneline --reverse >../git-history.txt

# push other commits from git-history.txt, 250 per run,
git push origin 03d35afab4df784b6b70c5483bbd2ea2eb4909e2:master
git push origin dbeb9c0679edbd34311c9e2d10f493e36933089d:master
git push origin 5fc27cc71f4da443f5344849b52c253d9f35af7f:master
git push origin ed90dfdd33fce0f922e99e987ebb8690bd895e39:master

git push

ggf .git/config von orig Repo kopieren (und pfad anpassen, siehe oben), wenn push target fehlt

# check new Repo (files are up to date?)
https://github.com/entorb/COVID-19-Coronavirus-German-Regions-OLD-DATA-BACKUP-230831

# done

#
# 2. cleanup original data by deleting data file changes from git commit history
#

# clone orig repo in a new dir
# or use copy from above
cd ..

mkdir data-cleanup-backup-dirs

git clone git@github.com:entorb/COVID-19-Coronavirus-German-Regions.git
# not using --bare, since I want to remove the current files

cd COVID-19-Coronavirus-German-Regions

move cache ..\data-cleanup-backup-dirs\
move data ..\data-cleanup-backup-dirs\
move draft ..\data-cleanup-backup-dirs\
move maps ..\data-cleanup-backup-dirs\
move old ..\data-cleanup-backup-dirs\
move plots-gnuplot ..\data-cleanup-backup-dirs\
move plots-python ..\data-cleanup-backup-dirs\
move plots-Excel ..\data-cleanup-backup-dirs\

git add .
git commit -m "remove data files before cleanup of git history"

python3 ../git-filter-repo --force --prune-empty always --invert-paths --path cache --path data --path draft --path maps --path old --path plots-gnuplot --path plots-python --path plots-Excel


# restore dirs and files
move ..\data-cleanup-backup-dirs\cache .\
move ..\data-cleanup-backup-dirs\data .\
move ..\data-cleanup-backup-dirs\draft .\
move ..\data-cleanup-backup-dirs\maps .\
move ..\data-cleanup-backup-dirs\old .\
move ..\data-cleanup-backup-dirs\plots-gnuplot .\
move ..\data-cleanup-backup-dirs\plots-python .\
move ..\data-cleanup-backup-dirs\plots-Excel .\



git add .
git update-index --chmod=+x */*.sh
git commit -m "restoring data files after cleanup"

copy ../config .git/config

git push -f


# 3. sync real source file to this repo
D:
cd \GitHub\COVID-19-Coronavirus-German-Regions

git fetch origin
git reset --hard origin/main

# cleanup via git garbage collector
git reflog expire --expire=now --all
git gc --prune=now --aggressive