docusaurus/packages/docusaurus-utils-validation/src/validationUtils.ts
2020-10-26 15:18:51 +01:00

85 lines
2.6 KiB
TypeScript

/**
* Copyright (c) Facebook, Inc. and its affiliates.
*
* This source code is licensed under the MIT license found in the
* LICENSE file in the root directory of this source tree.
*/
import * as Joi from 'joi';
import chalk from 'chalk';
import {PluginIdSchema} from './validationSchemas';
// TODO temporary escape hatch for alpha-60: to be removed soon
// Our validation schemas might be buggy at first
// will permit users to bypass validation until we fix all validation errors
// see for example: https://github.com/facebook/docusaurus/pull/3120
// Undocumented on purpose, as we don't want users to keep using it over time
// Maybe we'll make this escape hatch official some day, with a better api?
export const isValidationDisabledEscapeHatch =
process.env.DISABLE_DOCUSAURUS_VALIDATION === 'true';
if (isValidationDisabledEscapeHatch) {
console.error(
chalk.red(
'You should avoid using DISABLE_DOCUSAURUS_VALIDATION escape hatch, this will be removed',
),
);
}
export const logValidationBugReportHint = () => {
console.log(
`\n${chalk.red('A validation error occured.')}${chalk.cyanBright(
'\nThe validation system was added recently to Docusaurus as an attempt to avoid user configuration errors.' +
'\nWe may have made some mistakes.' +
'\nIf you think your configuration is valid and should keep working, please open a bug report.',
)}\n`,
);
};
export function normalizePluginOptions<T extends {id?: string}>(
schema: Joi.ObjectSchema<T>,
options: unknown,
) {
// All plugins can be provided an "id" option (multi-instance support)
// we add schema validation automatically
const finalSchema = schema.append({
id: PluginIdSchema,
});
const {error, value} = finalSchema.validate(options, {
convert: false,
});
if (error) {
logValidationBugReportHint();
if (isValidationDisabledEscapeHatch) {
console.error(error);
return options;
} else {
throw error;
}
}
return value;
}
export function normalizeThemeConfig<T>(
schema: Joi.ObjectSchema<T>,
themeConfig: unknown,
) {
// A theme should only validate his "slice" of the full themeConfig,
// not the whole object, so we allow unknown attributes
// otherwise one theme would fail validating the data of another theme
const finalSchema = schema.unknown();
const {error, value} = finalSchema.validate(themeConfig, {
convert: false,
});
if (error) {
logValidationBugReportHint();
if (isValidationDisabledEscapeHatch) {
console.error(error);
return themeConfig;
} else {
throw error;
}
}
return value;
}