Easy way to generate diff b/w commits for a range while sharing blog post

generate_incremental_diff.sh

#!/usr/bin/env bash

if [[ $# -eq 2 ]] ; then
  echo "Start Commit: $1\nEnd Commit: $2"
else
  >&2 echo "Usage: DRY_RUN=1 $0 [Start-Commit] [End-Commit]\nExample: $0 d2b931acb891d74014d2c5f6a1996f69c222e01c 5c3b13ad8e0c4cf742adc990593926eb25d36fcd"
  exit 1
fi

echo "Is Dry run ?? $DRY_RUN"

start_commit=$1
end_commit=$2

local_start_commit=$start_commit

for i in `git log --reverse $start_commit...$end_commit | grep commit | cut -d ' ' -f2- | xargs`; do
  echo pretty-diff $local_start_commit...$i
  if [[ "$DRY_RUN" -eq 1 ]]; then
    echo gist-diff $local_start_commit...$i
  else
    gist-diff $local_start_commit...$i
  fi
  local_start_commit=$i
done