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"""This module contains code that's used for generating diffs"""
from typing import Optional
from gn3.commands import run_cmd
def generate_diff(data: str, edited_data: str) -> Optional[str]:
"""Generate the diff between 2 files"""
results = run_cmd(f"diff {data} {edited_data}", success_codes=(1, 2))
if results.get("code", -1) > 0:
return results.get("output")
return None
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