Git LFS test using BFG

gistfile1.sh

#!/usr/bin/env bash
GIT_REMOTE="https://path/to/your/repo.git"

# Download BFG from here:
# https://github.com/rtyley/bfg-repo-cleaner/releases/download/git-lfs-alpha/bfg-1.12.4-SNAPSHOT-git-lfs-7242876.jar
GIT_BFG="/path/to/downloaded/bfg-1.12.4-SNAPSHOT-git-lfs-7242876.jar"

rm -rf bfg-upload
mkdir bfg-upload
pushd bfg-upload > /dev/null
    # Generate repo
    git init
    git remote add origin $GIT_REMOTE
    echo "commit 1, binary file A" > fileA.bin
    git add .
    git commit -m "commit 1"
    echo "commit 2, binary file B" > fileB.bin
    echo "commit 2, binary file C" > fileC.bin
    git add .
    git commit -m "commit 2"

    # Rewrite history
    java -Xmx1g -jar $GIT_BFG \
        --convert-to-git-lfs -fi "*.{bin}" \
        --private \
        --no-blob-protection .git
    git reset --hard

    # Fix LFS object directories (this will be obsolete with the next BFG release I think)
    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

    # Upload files manually to LFS
    for FILE in .git/lfs/objects/*/*/*; do
        OBJ_ID=$(basename "$FILE")
        # TODO: We could pass multiple object IDs here to leverage batch upload
        git lfs push --objectid origin $OBJ_ID
    done

    # Add LFS filter
    # TODO: Is there a way to do this fast with BFG?
    git filter-branch --tree-filter "echo '*.bin filter=lfs diff=lfs merge=lfs -crlf' > .gitattributes" HEAD
    git reflog expire --expire=now --all && git gc --prune=now --aggressive
    git push -f origin master

popd > /dev/null

# Clone the repo to test that everything worked!
rm -rf bfg-clone
git clone $GIT_REMOTE bfg-clone
pushd bfg-clone > /dev/null
    cat fileA.bin
    cat fileB.bin
    cat fileC.bin
popd > /dev/null