myst-cli/dist/utils/resolveFrontmatterParts.js

Command line tools for MyST

import { castSession } from '../session/cache.js';
/**
 * Load frontmatter parts from session and return part:node lookup
 */
export function resolveFrontmatterParts(session, pageFrontmatter) {
    const { parts } = pageFrontmatter ?? {};
    if (!parts || Object.keys(parts).length === 0)
        return undefined;
    const partsMdast = {};
    Object.entries(parts).forEach(([part, content]) => {
        if (content.length !== 1)
            return;
        const { mdast, frontmatter } = castSession(session).$getMdast(content[0])?.post ?? {};
        if (mdast)
            partsMdast[part] = { mdast, frontmatter };
    });
    return partsMdast;
}