Converts Google Keep exported JSON notes to Obsidian markdown files

keep2obsidian.js

//
// Converts Google Keep exported JSON notes to Obsidian markdown files
// Usage: node keep2obsidian.js
// Place files in a sibling directory called: `notes`
//

const fs = require('fs');
const path = require('path');

const readJSON = (filePath) => {
    const contents = fs.readFileSync(filePath).toString();
    let result = null;
    try {
      result = JSON.parse(contents);
    } catch (e) {
    }
    const name = path.basename(filePath);
    return { path: filePath, name, json: result };
};

const OS_ScanFiles = (rootDir, ignoreFiles = []) => {
    const result = [];

    const ignoreDirs = ignoreFiles.filter((it) => it.includes('/'));

    const scan = (dir) => {
        fs.readdirSync(dir).forEach((file) => {
            if (ignoreFiles.includes(file)) return;
            if (ignoreDirs.some((ignoreDir) => dir.replaceAll('\\', '/').includes(ignoreDir))) return;

            const fullPath = path.join(dir, file);
            if (fs.statSync(fullPath).isDirectory()) {
                return scan(fullPath);
            } else {
                return result.push(fullPath);
            }
        });
    };

    scan(rootDir);
    return result;
};

const OS_DeleteEntireDirectory = (dir) => {
    try {
        fs.rmSync(dir, { recursive: true });
    } catch (e) {}
};

const OS_WriteEntireFile = (fp, c) => {
    fs.writeFileSync(fp, c, 'utf8');
};

const PrettyDate = (d) => {
    const date = new Date(d);
    return date.toISOString().split('T')[0];
}

//
// Main
//

const inputPath = path.join(__dirname, './notes/');
const outputDir = path.join(__dirname, './out/');

OS_DeleteEntireDirectory(outputDir);

if (!fs.existsSync(outputDir)){
    fs.mkdirSync(outputDir);
}

const files = OS_ScanFiles(inputPath).map(readJSON).filter((it) => it.json && !it.json.isArchived).map((it) => {
  const name = it.name.replace(/\.json$/, '');
  const createdAt = PrettyDate(it.json.createdTimestampUsec / 1000);
  const fname = it.json.title ? `${createdAt}_${name}.md` : `${createdAt}_${it.json.createdTimestampUsec / 1000}.md`;

  const dest = path.join(outputDir, fname);
  let content = it.json.title ? `# ${it.json.title}\n${it.json.textContent || ''}` : it.json.textContent || '';

  if (it.json.listContent)
  {
      content += it.json.listContent.map((item) => `- ${item.text}`).join('\n');
  }

  OS_WriteEntireFile(dest, content);

  return { name, createdAt, it };
});


console.log(files.length);