Cleanup EJS rendering code

lib/generate/css.ts

@@ -19,9 +19,7 @@ async function generate(theme: string) {
 	const filename = `site/css/${theme}.scss`;
 
 	let sass = (await fs.readFile(filename)).toString();
-	sass = ejs.render(sass, {}, {
-		filename: filename
-	});
+	sass = util.render(sass, {}, filename);
 	const result = await renderSass(sass);
 
 	util.write(`css/${theme}.css`, result.css);

lib/generate/missing.ts

@@ -1,4 +1,3 @@
-import ejs from "ejs";
 import * as metadata from "../metadata";
 import layout from "../layout";
 import * as util from "../util";
@@ -6,11 +5,9 @@ import * as util from "../util";
 export default async function missing() {
 	const page = await metadata.get("site/404.html.ejs");
 
-	page.text = ejs.render(page.text, {
+	page.text = util.render(page.text, {
 		metadata: page.metadata
-	}, {
-		filename: "site/404.html.ejs"
-	});
+	}, "site/404.html.ejs");
 
 	page.text = await layout(page.text, page.metadata, page.metadata.layout!);
 

lib/generate/paginated.ts

@@ -1,6 +1,4 @@
 import path from "path";
-import ejs from "ejs";
-import formatDate from "date-fns/format";
 import * as util from "../util";
 import * as metadata from "../metadata";
 import { Page, PostMetadata } from "../metadata";
@@ -29,15 +27,11 @@ export default async function generatePaginted(posts: Page[], basePath: string,
 				total: chunks.length,
 				prevLink: pageNum == 1 ? "" : pageNum == 2 ? basePath : path.join(basePath, (pageNum - 1).toString()),
 				nextLink: pageNum == chunks.length ? "" : path.join(basePath, (pageNum + 1).toString())
-			},
-			formatDate,
-			fancyLink: util.fancyLink
+			}
 		};
 		if (extraData) data = {...data, ...extraData};
 
-		let renderedTemplate = ejs.render(page.text, data, {
-			filename: templatePath
-		});
+		let renderedTemplate = util.render(page.text, data, templatePath);
 
 		renderedTemplate = await layout(renderedTemplate, page.metadata, page.metadata.layout!);
 

lib/generate/redirects.ts

@@ -1,4 +1,3 @@
-import ejs from "ejs";
 import * as metadata from "../metadata";
 import { Page } from "../metadata";
 import layout from "../layout";
@@ -7,12 +6,10 @@ import * as util from "../util";
 async function generateRedirect(oldPermalink: string, newPermalink: string) {
 	const page = await metadata.get("site/redirect.html.ejs");
 
-	page.text = ejs.render(page.text, {
+	page.text = util.render(page.text, {
 		metadata: page.metadata,
 		newPermalink
-	}, {
-		filename: "site/redirect.html.ejs"
-	});
+	}, "site/redirect.html.ejs");
 
 	page.text = await layout(page.text, page.metadata, page.metadata.layout!);
 

lib/generate/rss.ts

@@ -1,5 +1,4 @@
 import { promises as fs } from "fs";
-import ejs from "ejs";
 import path from "path";
 import { Page, PostMetadata } from "../metadata";
 import * as util from "../util";
@@ -15,14 +14,12 @@ async function generateFeed(posts: Page[], permalink: string, category?: string)
 	const dest = path.join(permalink, "feed.xml");
 
 	let text = (await fs.readFile("site/feed.xml.ejs")).toString();
-	text = ejs.render(text, {
+	text = util.render(text, {
 		posts,
 		category,
 		permalink,
 		feedPath: dest
-	}, {
-		filename: "site/feed.xml.ejs"
-	});
+	}, "site/feed.xml.ejs");
 
 	util.write(dest, text);
 }

lib/generate/tutorials.ts

@@ -1,14 +1,12 @@
 import { promises as fs } from "fs";
 import path from "path";
 import dateFns from "date-fns";
-import formatDate from "date-fns/format";
 import slugify from "@sindresorhus/slugify";
 import { Page, PostMetadata } from "../metadata";
 import * as metadata from "../metadata";
 import * as markdown from "../markdown";
 import layout from "../layout";
 import * as util from "../util";
-import ejs from "ejs";
 
 async function generateTutorials(group: string): Promise<Page[]> {
 	const tutorials: Page[] = [];
@@ -70,14 +68,10 @@ async function generateTutorialsAndIndex(group: string, title: string): Promise<
 	(<TutorialIndexMetadata>page.metadata).group = group;
 	(<TutorialIndexMetadata>page.metadata).lastUpdated = <Date>(<PostMetadata>tutorials[tutorials.length - 1].metadata).date
 
-	page.text = ejs.render(page.text, {
+	page.text = util.render(page.text, {
 		tutorials,
-		metadata: page.metadata,
-		formatDate,
-		fancyLink: util.fancyLink
-	}, {
-		filename: "site/tutorial-series.html.ejs"
-	});
+		metadata: page.metadata
+	}, "site/tutorial-series.html.ejs");
 
 	page.text = await layout(page.text, page.metadata, page.metadata.layout!);
 
@@ -94,13 +88,9 @@ async function generateTutorialsAndIndex(group: string, title: string): Promise<
 async function generateIndex(allSeries: TutorialSeries[]) {
 	const page = await metadata.get("site/tutorials.html.ejs");
 
-	page.text = ejs.render(page.text, {
-		allSeries,
-		formatDate,
-		fancyLink: util.fancyLink
-	}, {
-		filename: "site/tutorials.html.ejs"
-	});
+	page.text = util.render(page.text, {
+		allSeries
+	}, "site/tutorials.html.ejs");
 
 	page.text = await layout(page.text, page.metadata, page.metadata.layout!);
 

lib/layout.ts

@@ -1,6 +1,4 @@
 import path from "path";
-import ejs from "ejs";
-import formatDate from "date-fns/format";
 import * as metadata from "./metadata";
 import { Metadata } from "./metadata";
 import * as util from "./util";
@@ -8,14 +6,10 @@ import * as util from "./util";
 export default async function layout(text: string, pageMetadata: Metadata, layoutPath: string): Promise<string> {
 	const layoutFile = path.join("site/layouts", layoutPath);
 	let layoutPage = await metadata.get(layoutFile);
-	text = ejs.render(layoutPage.text, {
+	text = util.render(layoutPage.text, {
 		content: text,
-		metadata: pageMetadata,
-		formatDate,
-		fancyLink: util.fancyLink
-	}, {
-		filename: layoutFile,
-	});
+		metadata: pageMetadata
+	}, layoutFile);
 	if (layoutPage.metadata.layout) {
 		return await layout(text, pageMetadata, layoutPage.metadata.layout);
 	} else {

lib/util.ts

@@ -1,6 +1,8 @@
 import { promises as fs } from "fs";
 import path from "path";
 import hljs from "highlight.js";
+import ejs from "ejs";
+import formatDate from "date-fns/format";
 
 export async function write(filePath: string, data: any) {
 	const dest = path.join("out", filePath);
@@ -41,4 +43,12 @@ export function fancyLink(text: string, href: string, meta?: string): string {
 	${text}
 	<span aria-hidden="true">}</span>
 </a>`;
+}
+
+export function render(template: string, data: any, filename?: string): string {
+	data.fancyLink = fancyLink;
+	data.formatDate = formatDate;
+	return ejs.render(template, data, {
+		filename
+	});
 }