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Waylon Walker
Waylon Walker

Posted on • Originally published at waylonwalker.com

Python Respect the .gitignore

Many tools such as ripgrep respect the .gitignore file in the directory it's searching in. This helps make it incredibly faster and generally more intuitive for the user as it just searches files that are part of thier project and not things like their virtual environments, node modules, or compiled builds.

Editors like vscode often do not include files that are .gitignored in
their search either.

pathspec is a pattern matching library that implements git's wildmatch
pattern so that you can ignore files included in your .gitignore patterns. You might want this to help make your libraries more performant, or more intuitive for you users.

import pathspec from pathlib import Path

markdown_files = Path().glob('**/*.md') if (Path(".gitignore").exists():
    lines = Path(".gitignore").read_text().splitlines()

    spec = pathspec.PathSpec.from_lines("gitwildmatch", lines)

    markdown_files = [
        file for file in markdown_files if not spec.match_file(str(file))
    ]
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