From 72311e94e9825bc323003c35681217ad0abe200d Mon Sep 17 00:00:00 2001
From: Kevin Van Lierde <kevin.van.lierde@gmail.com>
Date: Wed, 1 Jun 2022 02:24:20 +0200
Subject: [PATCH] Adds support for methods: compileFileAsync, render,
 renderFile, renderFileAsync

---
 index.js       | 57 +++++++++++++++++++++++++++++++++++++++++++-------
 test/input.ejs |  2 +-
 2 files changed, 50 insertions(+), 9 deletions(-)

diff --git a/index.js b/index.js
index c9af649..43ca6b0 100644
--- a/index.js
+++ b/index.js
@@ -3,17 +3,58 @@
 const fs = require('fs')
 const ejs = require('ejs')
 
-exports.name = 'ejs'
-exports.outputFormat = 'html'
-exports.compile = ejs.compile
-exports.compileClient = function (source, options) {
+const transformer = {
+  name: 'ejs',
+  outputFormat: 'html',
+}
+
+transformer.compile = function (source, options) {
+  return ejs.compile(source, { ...options, async: false, client: false })
+}
+
+transformer.compileClient = function (source, options) {
+  return ejs.compile(source, { ...options, async: false, client: true }).toString()
+}
+
+transformer.compileFile = function (path, options) {
   options = options || {}
-  options.client = true
-  return exports.compile(source, options).toString()
+  options.filename = options.filename || path
+  return transformer.compile(fs.readFileSync(path, 'utf8'), options)
 }
 
-exports.compileFile = function (path, options) {
+transformer.compileFileAsync = function (path, options) {
   options = options || {}
   options.filename = options.filename || path
-  return exports.compile(fs.readFileSync(path, 'utf8'), options)
+  return new Promise((resolve, reject) => {
+    fs.readFile(path, 'utf8', (error, source) => {
+      if (error) {
+        reject(error)
+      }
+
+      resolve(transformer.compile(source, options))
+    })
+  })
 }
+
+transformer.render = function (source, options, locals) {
+  return ejs.render(source, locals, { ...options, async: false })
+}
+
+transformer.renderFile = function (path, options, locals = null) {
+  options.filename = options.filename || path
+  return ejs.render(fs.readFileSync(path, 'utf8'), locals, { ...options, async: false })
+}
+
+transformer.renderFileAsync = function (path, options, locals = null) {
+  return new Promise((resolve, reject) => {
+    ejs.renderFile(path, locals, options, (error, result) => {
+      if (error) {
+        reject(error)
+      }
+
+      resolve(result)
+    })
+  })
+}
+
+module.exports = transformer
diff --git a/test/input.ejs b/test/input.ejs
index f2728c5..e736f80 100644
--- a/test/input.ejs
+++ b/test/input.ejs
@@ -1,5 +1,5 @@
 <ul>
   <@ pets.forEach(function(pet){ @>
-    <@ include pet @>
+    <@- include('pet', { pet }) @>
   <@ }) @>
 </ul>