September 19-25, 2021 in Darker: Addressing performance and compatibility challenges

[akaihola]

This week, we focused on addressing several performance and compatibility issues. We discussed potential solutions for the pre-commit integration problem (#180), where users encountered errors when running Darker as a pre-commit hook on the git HEAD commit. One proposal suggests allowing Darker to modify files when called by pre-commit under specific conditions, using a special --revision=:PRE-COMMIT: flag and $PRE_COMMIT_TO_REF=HEAD environment variable.

We also delved into performance optimization for large files and bisection scenarios (#205). Several areas for improvement were identified, including caching intermediate comparison results and optimizing the bisection process. Additionally, we clarified the behavior of Darker on all-whitespace files (#166), noting that it currently differs from Black. We're considering aligning Darker's behavior with a potential change in Black's public API, which would format all-whitespace files as a single newline.

A compatibility issue with older versions of isort was addressed (#157), highlighting the importance of maintaining compatibility with various versions of our dependencies. We also discussed the typing_extensions dependency issue (#202), which appears to be related to Pipenv's handling of dependency resolution. For now, users experiencing this issue can use the --skip-lock option as a workaround.

---

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    "end_date": "2021-09-25",
    "llm": "openrouter/anthropic/claude-3.5-sonnet:beta",
    "powered_by": "https://github.com/akaihola/repo-summary-post/tree/v0.0.1",
    "start_date": "2021-09-19"
}