prettylint/lib/vendor/ignore.js

Run Prettier as a linter

// modified from https://github.com/prettier/prettier/blob/3.0.0/src/utils/ignore.js
import path from "node:path";
import ignoreModule from "ignore";
import { readFile } from "./read-file.js";
import { normalizeToPosix } from "./utils.js";
const createIgnore = ignoreModule.default;
async function createSingleIsIgnoredFunction(ignoreFilePath, withNodeModules) {
    let content = "";
    if (ignoreFilePath) {
        content += (await readFile(ignoreFilePath)) ?? "";
    }
    if (!withNodeModules) {
        content += "\n" + "node_modules";
    }
    if (!content) {
        return () => false;
    }
    const ignore = createIgnore({ allowRelativePaths: true }).add(content);
    return (filepath) => {
        filepath = path.resolve(filepath);
        // If there's an ignore-path set, the filename must be relative to the
        // ignore path, not the current working directory.
        const relativePath = ignoreFilePath
            ? path.relative(path.dirname(ignoreFilePath), filepath)
            : path.relative(process.cwd(), filepath);
        return ignore.ignores(normalizeToPosix(relativePath));
    };
}
export async function createIsIgnoredFunction(ignoreFilePaths, withNodeModules) {
    // If `ignoreFilePaths` is empty, we still want `withNodeModules` to work
    if (ignoreFilePaths.length === 0 && !withNodeModules) {
        return createSingleIsIgnoredFunction(undefined, withNodeModules);
    }
    const isIgnoredFunctions = await Promise.all(ignoreFilePaths.map((ignoreFilePath) => createSingleIsIgnoredFunction(ignoreFilePath, withNodeModules)));
    return (filepath) => isIgnoredFunctions.some((isIgnored) => isIgnored(filepath));
}