Allow custom template engines

Author: mcecode

README.md

@@ -63,7 +63,7 @@ npm install pdf-made-easy
 
 ### CLI
 
-- [ ] Custom template engine via a `getTemplateRenderer` method in the config file
+- [x] Custom template engine via a `getTemplateRenderer` method in the config file
 - [ ] Auto-reloading preview of the generated PDF via a `--preview` or `-p` option
 - [ ] Using a separate stylesheet via a `--style` or `-s` option
 - [ ] Serving local assets for PDF embedding via `--serve` and `--port` options (ideas for implementation: [1](https://stackoverflow.com/a/67505480), [2](https://github.com/puppeteer/puppeteer/issues/1643))

cli.js

@@ -9,12 +9,7 @@ import { findUp, pathExists } from "find-up";
 import { hideBin } from "yargs/helpers";
 import yargs from "yargs/yargs";
 
-import {
-  absolutizePath,
-  build,
-  develop,
-  getDefaultTemplateRenderer
-} from "./index.js";
+import { absolutizePath, build, develop } from "./index.js";
 
 const DEFAULT_CONFIG_FILENAME = "pme.config.mjs";
 
@@ -81,8 +76,7 @@ async function handle(args) {
   try {
     await (command === "build" ? build : develop)({
       ...args,
-      options: await getConfig(config, DEFAULT_CONFIG_FILENAME),
-      getTemplateRenderer: getDefaultTemplateRenderer
+      options: await getConfig(config, DEFAULT_CONFIG_FILENAME)
     });
   } catch ({ message }) {
     console.error(`Error: ${message}`);

index.d.ts

@@ -43,6 +43,12 @@ export interface PMEConfig<T = LiquidOptions> {
    * The options passed to {@link PDFRenderer.render}.
    */
   pdfOptions?: PDFOptions;
+
+  /**
+   * Sets up and returns a function that renders HTML from a template string and data
+   * object.
+   */
+  getTemplateRenderer?(options?: T): RenderTemplate;
 }
 
 /**
@@ -54,12 +60,6 @@ export interface CommandArgs<T = LiquidOptions> extends BaseArgs {
    * The options passed down to the template and PDF renderers.
    */
   options?: PMEConfig<T>;
-
-  /**
-   * Sets up and returns a function that renders HTML from a template string and data
-   * object.
-   */
-  getTemplateRenderer?(options?: T): RenderTemplate;
 }
 
 /**

index.js

@@ -92,10 +92,7 @@ export async function getBuilder() {
   let isClosed = false;
 
   return {
-    async build(
-      { data, template, output, options, getTemplateRenderer },
-      rootDir = process.cwd()
-    ) {
+    async build({ data, template, output, options }, rootDir = process.cwd()) {
       if (isClosed) {
         return;
       }
@@ -112,7 +109,7 @@ export async function getBuilder() {
 
       const html = await renderHTML(
         absolutizePath(template, rootDir),
-        (getTemplateRenderer ?? getDefaultTemplateRenderer)(
+        (options?.getTemplateRenderer ?? getDefaultTemplateRenderer)(
           // TODO: Fix type error
           // @ts-expect-error
           options?.templateOptions