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('lib')),
);