27 lines
1006 B
TypeScript
27 lines
1006 B
TypeScript
/**
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* Copyright (c) Facebook, Inc. and its affiliates.
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*
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* This source code is licensed under the MIT license found in the
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* LICENSE file in the root directory of this source tree.
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*/
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import Joi from './Joi';
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// Enhance the default Joi.string() type so that it can convert number to strings
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// If user use frontmatter "tag: 2021", we shouldn't need to ask the user to write "tag: '2021'"
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// Also yaml tries to convert patterns like "2019-01-01" to dates automatically
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// see https://github.com/facebook/docusaurus/issues/4642
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// see https://github.com/sideway/joi/issues/1442#issuecomment-823997884
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const JoiFrontMatterString: Joi.Extension = {
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type: 'string',
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base: Joi.string(),
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// Fix Yaml that tries to auto-convert many things to string out of the box
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prepare: (value) => {
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if (typeof value === 'number' || value instanceof Date) {
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return {value: value.toString()};
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}
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return {value};
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},
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};
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export const JoiFrontMatter: typeof Joi = Joi.extend(JoiFrontMatterString);
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