Cut down highlight.js size

src/utils/highlight.ts

@@ -0,0 +1,28 @@
+import hljs from 'highlight.js/lib/core'
+
+import bash from 'highlight.js/lib/languages/bash'
+import diff from 'highlight.js/lib/languages/diff'
+import java from 'highlight.js/lib/languages/java'
+import javascript from 'highlight.js/lib/languages/javascript'
+import json from 'highlight.js/lib/languages/json'
+import plaintext from 'highlight.js/lib/languages/plaintext'
+import python from 'highlight.js/lib/languages/python'
+import rust from 'highlight.js/lib/languages/rust'
+import ini from 'highlight.js/lib/languages/ini'
+import yaml from 'highlight.js/lib/languages/yaml'
+
+hljs.registerLanguage('bash', bash)
+hljs.registerLanguage('diff', diff)
+hljs.registerLanguage('java', java)
+hljs.registerLanguage('javascript', javascript)
+hljs.registerLanguage('json', json)
+hljs.registerLanguage('plaintext', plaintext)
+hljs.registerLanguage('python', python)
+hljs.registerLanguage('rust', rust)
+hljs.registerLanguage('ini', ini)
+hljs.registerLanguage('yaml', yaml)
+
+export function highlight(code: string, lang: string) {
+	const language = hljs.getLanguage(lang) ? lang : 'plaintext'
+	return hljs.highlight(code, { language }).value
+}

src/utils/parse.ts

@@ -1,6 +1,6 @@
 import { marked } from 'marked'
-import hljs from 'highlight.js'
 import insane from 'insane'
+import { highlight } from './highlight'
 
 const renderer = new marked.Renderer()
 
@@ -27,10 +27,7 @@ renderer.link = (href, title, text) => {
 
 marked.setOptions({
 	renderer,
-	highlight: function (code, lang) {
-		const language = hljs.getLanguage(lang) ? lang : 'plaintext'
-		return hljs.highlight(code, { language }).value
-	},
+	highlight,
 	langPrefix: 'hljs language-',
 	headerPrefix: '',
 	gfm: true,