Find specific file in GIT history

git_find_file_in_history.sh

#!/usr/bin/env bash
# Find specific file in GIT history

if [ "$1" = "" ]; then
  echo "Usage: ./$(basename ${0}) file" && exit 1
fi

_file=$1

blob=`git hash-object $_file`
if [ "$blob" == "" ]; then
  echo "$_file is not a readable file" && exit 1
fi

echo "Search for blob $blob"

git rev-list --all |
while read commit; do
  found=`git ls-tree -r $commit | grep $blob`
  if [ "$found" != "" ]; then
    echo "--------------- $commit: `git log -n 1 --pretty=format:"%ad –– %s" $commit`"
    echo "$found"
    echo ""
  fi
done

echo "Done"