deltas: add a debug-delta-find command to analyse delta search
See command documentation for details.
For some reason, pytype is confused by our usage of None/deltainfo variable, so
I had to quiet it.
[build-system]
requires = ["setuptools", "wheel"]
[tool.black]
line-length = 80
exclude = '''
build/
| wheelhouse/
| dist/
| packages/
| \.hg/
| \.mypy_cache/
| \.venv/
| mercurial/thirdparty/
'''
skip-string-normalization = true
quiet = true