This script was used to migrate from gitosis to https://github.com/lsst/afwdata

convert-lfs.sh

# converting an existing repo to use "lfs"
#
# note that a .gitattributes file for lfs needs to be added to any commit in
# which large files are present in the tree

wget http://repo1.maven.org/maven2/com/madgag/bfg/1.12.7/bfg-1.12.7.jar -O bfg-1.12.7.jar
git clone --mirror git://git.lsstcorp.org/LSST/DMS/testdata/afwdata.git afwdata
cd afwdata
java -jar ../bfg-1.12.7.jar --convert-to-git-lfs '*.{boost,dat,fits,gz}' --no-blob-protection
git reset --hard

# stolen from https://gist.github.com/larsxschneider/a31fb77c7e9a9c9b81da
#for FILE in .git/lfs/objects/*; do
#    OBJ_ID=$(basename "$FILE")
#    OBJ_DIR=".git/lfs/objects/${OBJ_ID:0:2}/${OBJ_ID:2:2}"
#    mkdir -p "$OBJ_DIR"
#    mv "$FILE" "$OBJ_DIR/$OBJ_ID"
#done

git filter-branch --tree-filter "echo '*.boost filter=lfs diff=lfs merge=lfs -text
*.dat filter=lfs diff=lfs merge=lfs -text
*.fits filter=lfs diff=lfs merge=lfs -text
*.gz filter=lfs diff=lfs merge=lfs -text' > .gitattributes" HEAD

git reflog expire --expire=now --all && git gc --prune=now
git lfs init
git remote rename origin upstream
git remote add origin https://github.com/lsst/afwdata.git
git push -u origin master