#! /run/current-system/sw/bin/bash

cd ..

# Get the total number of commits
commit_count=$(git rev-list --count HEAD)

# Loop through each commit in reverse order (last to first)
for (( i=1; i<=$commit_count; i++ )); do
    # Calculate commit hash for the current iteration
    commit_hash=$(git rev-list --max-count=1 --skip=$((commit_count - i)) HEAD)
    
    # Get the hash of the previous commit (or an empty string if it's the first commit)
    if [ $i -eq 1 ]; then
        previous_commit=""
    else
        previous_commit=$(git rev-list --max-count=1 --skip=$((commit_count - i + 1)) HEAD)
    fi

    # Generate the diff, using the empty tree for the initial commit if necessary
    if [ -z "$previous_commit" ]; then
        git diff 4b825dc642cb6eb9a060e54bf8d69288fbee4904 $commit_hash > "commit_$(printf "%03d" $i)_$(git rev-parse --short $commit_hash).diff"
    else
        git diff $previous_commit $commit_hash > "commit_$(printf "%03d" $i)_$(git rev-parse --short $commit_hash).diff"
    fi
done

echo "Diff files for all commits have been created."