Git File Diff Script

diff.sh

#!/bin/bash

branch=$(git rev-parse --abbrev-ref HEAD)


# echo "Enter the first commit hash:"
# read commit1

# echo "Enter the second commit hash:"
# read commit2

max_log_entries=30

commit_log=$(git log --oneline --abbrev-commit -n $max_log_entries --pretty=format:"%h %s" $branch)

# Display commit log for user selection
PS3="Select two commits for file changes: "

options=()
IFS=$'\n'
select commit_info in $commit_log; do
    options+=("$commit_info")
    if [ ${#options[@]} -eq 2 ]; then
        break
    fi
done
unset IFS 



# Get hash values of the two selected commits
commit1=$(echo ${options[0]} | awk '{print $1}')
commit2=$(echo ${options[1]} | awk '{print $1}')


mkdir -p diff

files=$(git diff --name-only $commit1 $commit2)

# copy files to diff folder
for file in $files
do
  # get relative path
  relative_path=$(dirname $file)

  # create folder
  mkdir -p diff/$relative_path

  # copy file
  cp $file diff/$relative_path
done

echo "Modified files copied to diff folder."