Agenix configuration

1 files changed, 23 insertions, 0 deletions

diff --git a/hosts/tammi/syntax-highlighting.js b/hosts/tammi/syntax-highlighting.js
new file mode 100644
index 0000000..362994a
--- /dev/null
+++ b/hosts/tammi/syntax-highlighting.js
@@ -0,0 +1,23 @@
+#!/usr/bin/node
+// Server side syntax highlight with Shiki https://shiki.matsu.io/
+// This script is replacement for pygments/highlight for cgit
+// Shiki is installed with `npm install -g shiki`
+// input: filename, stdin - source file. Outputs the highligted html to stdout.
+import { argv, stdin, stdout } from 'node:process';
+import { codeToHtml } from "/usr/lib/node_modules/shiki/dist/index.mjs";
+
+async function highlight(syntax) {
+    stdin.on("data", async (data) => {
+        const text = Buffer.from(data).toString("utf8");
+        const html = await codeToHtml(text, {
+            lang: syntax,
+            theme: "gruvbox-dark-soft"
+        });
+        stdout.write(html);
+    });
+    return true
+}
+
+const filename = argv[1];
+const lang = filename.split(".")[1];
+highlight(lang);