gulpfile.js

'use strict';
const gulp = require('gulp');
const insert = require('gulp-insert');
const rename = require('gulp-rename');
const template = require('gulp-template');

// Compile all *.ejs files to pre-compiled templates and append *.js to the filename.
gulp.task('templates', () =>
  gulp
    .src('./src/**/*.ejs')
    .pipe(
      template.precompile({
        evaluate: /\{%([\s\S]+?)%\}/g,
        interpolate: /\{\{([\s\S]+?)\}\}/g,
        escape: /\{\{\{([\s\S]+?)\}\}\}/g,
        variable: 'ctx',
      }),
    )
    .pipe(
      insert.prepend(
        'Object.defineProperty(exports, "__esModule", {\n' +
          '  value: true\n' +
          '});\n' +
          'exports.default=',
      ),
    )
    .pipe(
      rename({
        extname: '.ejs.js',
      }),
    )
    .pipe(gulp.dest('src'))
    .pipe(gulp.dest('lib')),
);