Git diff --stat with exclude files

git-diff-exclude-stats.md

// Just the exclude diff lines changed git diff --stat master -- ':(exclude)*package-lock.json'

// Detailed output on changed lines count

git log --author="<[email protected]>" --pretty=tformat: --numstat -- ':(exclude)*package-lock.json' | awk '{inserted+=$1; deleted+=$2; delta+=$1-$2; ratio=deleted/inserted} END {printf "Commit stats:\n- Lines added (total)....  %s\n- Lines deleted (total)..  %s\n- Total lines (delta)....  %s\n- Add./Del. ratio (1:n)..  1 : %s\n", inserted, deleted, delta, ratio }' -

// Output example

Commit stats:
- Lines added (total)....  7882
- Lines deleted (total)..  3919
- Total lines (delta)....  3963
- Add./Del. ratio (1:n)..  1 : 0.497209