git-line-blame-diff.sh

#!/bin/bash

# Ensure we're in a git repository
if ! git rev-parse --git-dir > /dev/null 2>&1; then
    echo "This is not a git repository."
    exit 1
fi

# Fetch the latest changes from the remote repository
git fetch origin

# Get diff output for each file
while read -r file; do
    echo "File: $file"
    echo "-----------------"

    # Get blame for each line in the diff output
    git diff origin/master... -- "$file" | grep -E '^\+' | cut -c2- | while read -r line; do
        # Use blame to find the commit for the current line
        # Extract commit SHA and commit message
        blame_info=$(git blame -L "/$line/",+1 "$file" 2>/dev/null | awk '{print $1}')
        if [ -n "$blame_info" ]; then
            # Extract commit SHA and commit message
            commit_msg=$(git log -1 --format="%s" "$blame_info" 2>/dev/null)
            echo "$blame_info - $commit_msg: $line"
        else
            echo "Blame not found for line: $line"
        fi
    done

    echo ""
done < <(git diff --name-only origin/master...)