A quick way to add `up` values for a Linking Your Thinking logic in Obsidian.

LYT_helper.js

const fs = require('fs').promises;
const path = require('path');
const yaml = require('js-yaml');
const term = 'search term here'
const lyt = '"[[File to Link]]"'


async function updateLinks(vaultPath) {
    let updatedCount = 0;

    async function processFile(filePath) {
        const content = await fs.readFile(filePath, 'utf8');
        if (!content.toLowerCase().includes(term)) return false;

        const parts = content.split('---');
        let frontmatter = {};
        let body = content;

        if (parts.length > 2) {
            try {
                frontmatter = yaml.load(parts[1]) || {};
                body = parts.slice(2).join('---').trim();
            } catch (e) {
                console.warn(`Error parsing frontmatter in ${filePath}: ${e.message}`);
                return false;
            }
        }

        let updated = false;
        if (!frontmatter.up) {
            frontmatter.up = lyt;
            updated = true;
        } else if (!frontmatter.related) {
            frontmatter.related = [lyt];
            updated = true;
        } else if (Array.isArray(frontmatter.related) && !frontmatter.related.includes(lyt)) {
            frontmatter.related.push(lyt);
            updated = true;
        }

        if (updated) {
            const newContent = `---
${yaml.dump(frontmatter)}---

${body}`;
            await fs.writeFile(filePath, newContent, 'utf8');
            return true;
        }

        return false;
    }

    async function walkDir(dir) {
        const files = await fs.readdir(dir);
        for (const file of files) {
            const filePath = path.join(dir, file);
            const stats = await fs.stat(filePath);
            if (stats.isDirectory()) {
                await walkDir(filePath);
            } else if (path.extname(file) === '.md') {
                if (await processFile(filePath)) {
                    updatedCount++;
                    console.log(`Updated: ${filePath}`);
                }
            }
        }
    }

    await walkDir(vaultPath);
    console.log(`Update complete. ${updatedCount} file(s) were updated.`);
}

// Usage
const vaultPath = process.argv[2];
if (!vaultPath) {
    console.error('Please provide the path to your Obsidian vault');
    process.exit(1);
}

updateLinks(vaultPath).catch(console.error);