@tangelo/tangelo-configuration-toolkit/src/lib/gulp-tcl-config.js

Tangelo Configuration Toolkit is a command-line toolkit which offers support for developing a Tangelo configuration.

const fs        = require('fs-extra');
const path      = require('path');
const TclConfig = require('./tcl-config');
const through2  = require('through2');
const Vinyl     = require('vinyl');


function createAddToStreamFn(stream) {
  return (path, content) => stream.push(new Vinyl({
    path: path,
    contents: Buffer.from(content)
  }));
}

module.exports = function() {
  const tclFileDirs = [];

  return through2.obj(

    function transform (file, _, cb) {
      if (file.isStream()) return cb(new Error('Streaming not supported.'));

      if (file.extname == '.tcl') tclFileDirs.push(path.dirname(file.relative));
      return cb(null, file);
    },

    function flush(cb) {
      for (const tclFileDir of tclFileDirs) {
        const tclConfig = new TclConfig(tclFileDir, createAddToStreamFn(this));
        tclConfig.outputJson(path.resolve(tclFileDir, 'fonto/assets'));
        tclConfig.outputCss(path.resolve(tclFileDir, 'fonto'));
        const esefCssDir = path.resolve(tclFileDir, 'export/esef/esef_out/css');
        if (fs.existsSync(esefCssDir)) tclConfig.outputCss(esefCssDir);
      }
      cb();
    }

  )
    .resume(); // required for triggering 'end' event
};