Respect black exclude

[akaihola]

Skip Black reformatting for files matching the exclude, extend-exclude or force-exclude Black configuration options. Fixes #146.

[sourcery-ai]

Sourcery Code Quality Report

✅  Merging this PR will increase code quality in the affected files by 2.68%.

Quality metrics	Before	After	Change
Complexity	8.24 ⭐	6.64 ⭐	-1.60 👍
Method Length	98.14 🙂	100.81 🙂	2.67 👎
Working memory	11.03 😞	10.64 😞	-0.39 👍
Quality	56.67% 🙂	59.35% 🙂	2.68% 👍

Other metrics	Before	After	Change
Lines	910	1168	258

Changed files	Quality Before	Quality After	Quality Change
src/darker/main.py	36.17% 😞	43.29% 😞	7.12% 👍
src/darker/black_diff.py	78.22% ⭐	75.56% ⭐	-2.66% 👎
src/darker/tests/test_black_diff.py	76.84% ⭐	73.37% 🙂	-3.47% 👎
src/darker/tests/test_main.py	67.34% 🙂	65.95% 🙂	-1.39% 👎

Here are some functions in these files that still need a tune-up:

File	Function	Complexity	Length	Working Memory	Quality	Recommendation
src/darker/main.py	main	23 😞	311 ⛔	14 😞	26.32% 😞	Refactor to reduce nesting. Try splitting into smaller methods. Extract out complex expressions
src/darker/tests/test_main.py	test_main	4 ⭐	402 ⛔	20 ⛔	34.77% 😞	Try splitting into smaller methods. Extract out complex expressions
src/darker/main.py	_reformat_single_file	10 🙂	199 😞	18 ⛔	37.92% 😞	Try splitting into smaller methods. Extract out complex expressions
src/darker/tests/test_main.py	test_format_edited_parts	0 ⭐	244 ⛔	14 😞	48.98% 😞	Try splitting into smaller methods. Extract out complex expressions
src/darker/tests/test_black_diff.py	test_apply_black_excludes	4 ⭐	185 😞	11 😞	53.73% 🙂	Try splitting into smaller methods. Extract out complex expressions

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• 🙂 good
• 😞 poor
• ⛔ very poor

The 👍 and 👎 indicate whether the quality has improved or gotten worse with this pull request.

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[roniemartinez]

Looks good. 🥇