diff.py
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diff.py
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	#!/usr/bin/python
	# This trivial script demonstrates how to extract the unified diff for a single
	# commit in a local repository.
	#
	# Example usage:
	# python examples/diff.py

	from dulwich.repo import Repo
	from dulwich.patch import write_tree_diff
	import sys

	repo_path = "."
	commit_id = b"a6602654997420bcfd0bee2a0563d9416afe34b4"

	r = Repo(repo_path)

	commit = r[commit_id]
	parent_commit = r[commit.parents[0]]
	outstream = getattr(sys.stdout, 'buffer', sys.stdout)
	write_tree_diff(outstream, r.object_store, parent_commit.tree, commit.tree)