ultimate-jekyll-manager/dist/gulp/tasks/utils/template-transform.js

Ultimate Jekyll dependency manager

// Libraries
const through2 = require('through2');
const { template } = require('node-powertools');
const path = require('path');

/**
 * Creates a through2 transform stream that processes template variables in files
 **/
function createTemplateTransform(data) {
  const extensions = ['html', 'md', 'liquid', 'json']

  return through2.obj(function(file, encoding, callback) {
    // Skip directories
    if (file.isDirectory()) {
      return callback(null, file);
    }

    // Check if file extension matches
    const ext = path.extname(file.path).toLowerCase().slice(1);
    if (!extensions.includes(ext)) {
      return callback(null, file);
    }

    // Log
    // console.log(`Processing file: ${file.path}`);

    // Process the file contents
    try {
      const contents = file.contents.toString();

      // Process templates
      const templated = template(contents, data, {
        brackets: ['[', ']'],
      });

      // Update file contents if changed
      if (contents !== templated) {
        file.contents = Buffer.from(templated);
        const relativePath = file.relative || file.path;
      }
    } catch (error) {
      console.error(`Error processing templates in ${file.path}:`, error);
    }

    // Pass the file through
    callback(null, file);
  });
}

module.exports = createTemplateTransform;