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import { Site } from "../core.ts";import * as eta from "../deps/eta.ts";import { EtaConfig } from "../deps/eta.ts";import Eta from "../core/engines/eta.ts";import loader from "../core/loaders/text.ts";import { merge } from "../core/utils.ts";
export interface Options {  /** The list of extensions this plugin applies to */  extensions: string[];
  /** Custom includes path */  includes: string;
  /** Configuration to pass to Eta */  options: Partial<EtaConfig>;}
// Default optionsconst defaults: Options = {  extensions: [".eta"],  includes: "",  options: {    useWith: true,  },};
/** A plugin to use Eta as a template engine */export default function (userOptions?: Partial<Options>) {  return (site: Site) => {    const options = merge(      { ...defaults, includes: site.options.includes },      userOptions,    );
    // Configure Eta    eta.configure({      ...options.options,      views: site.src(options.includes),    });
    // Configure includes    options.extensions.forEach((ext) =>      site.includes.set(ext, options.includes)    );
    // Update the cache    site.addEventListener("beforeUpdate", (ev) => {      for (const filename of ev.files!) {        eta.templates.remove(site.src(filename));      }    });
    // Load the pages    site.loadPages(options.extensions, loader, new Eta(eta));  };}