@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 !== header.trimStart();
    const endsWithWhiteSpace = header !== header.trimEnd();
    switch (true) {
        case startsWithWhiteSpace && endsWithWhiteSpace:
            return [
                false,
                message(['header', 'must not be surrounded by whitespace']),
            ];
        case startsWithWhiteSpace:
            return [false, message(['header', 'must not start with whitespace'])];
        case endsWithWhiteSpace:
            return [false, message(['header', 'must not end with whitespace'])];
        default:
            return [true];
    }
};
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