@commitlint/rules/lib/header-trim.js

Lint your commit messages

import message from "@commitlint/message";
export const headerTrim = (parsed) => {
    const { header } = parsed;
    if (!header)
        return [true];
    const startsWithWhiteSpace = header.length > header.trimStart().length;
    const endsWithWhiteSpace = header.length > header.trimEnd().length;
    if (startsWithWhiteSpace && endsWithWhiteSpace)
        return [false, message(["header", "must not be surrounded by whitespace"])];
    if (startsWithWhiteSpace)
        return [false, message(["header", "must not start with whitespace"])];
    if (endsWithWhiteSpace)
        return [false, message(["header", "must not end with whitespace"])];
    return [true];
};
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