47 lines
1.2 KiB
TypeScript
47 lines
1.2 KiB
TypeScript
|
import { parse } from "https://deno.land/std@0.195.0/yaml/mod.ts";
|
||
|
|
import { join, fromFileUrl } from "https://deno.land/std@0.193.0/path/mod.ts";
|
||
|
|
|
||
|
|
export const PAGES_PATH = join(fromFileUrl(import.meta.url), "../pages.yaml");
|
||
|
|
|
||
|
|
export interface PageDescription {
|
||
|
|
name: string;
|
||
|
|
description: string;
|
||
|
|
}
|
||
|
|
|
||
|
|
async function readPagesDescription() {
|
||
|
|
const pagesText = await Deno.readTextFile(PAGES_PATH);
|
||
|
|
const pages = parse(pagesText) as PageDescription[];
|
||
|
|
return pages;
|
||
|
|
}
|
||
|
|
|
||
|
|
function watchFile(
|
||
|
|
path: string,
|
||
|
|
callback: () => void | Promise<void>,
|
||
|
|
) {
|
||
|
|
const watcherRef = Deno.watchFs(path);
|
||
|
|
(async () => {
|
||
|
|
for await (const event of watcherRef) {
|
||
|
|
if (event.kind == "modify") {
|
||
|
|
await callback();
|
||
|
|
}
|
||
|
|
}
|
||
|
|
})();
|
||
|
|
Deno.addSignalListener("SIGINT", () => {
|
||
|
|
watcherRef.close();
|
||
|
|
});
|
||
|
|
}
|
||
|
|
|
||
|
|
let pages_meta: PageDescription[] = [];
|
||
|
|
let mtime = 0;
|
||
|
|
export async function get_pages_meta(): Promise<[PageDescription[],number]>{
|
||
|
|
if (pages_meta) {
|
||
|
|
pages_meta = await readPagesDescription();
|
||
|
|
mtime = Date.now();
|
||
|
|
watchFile(PAGES_PATH, async () => {
|
||
|
|
pages_meta = await readPagesDescription();
|
||
|
|
mtime = Date.now();
|
||
|
|
});
|
||
|
|
}
|
||
|
|
return [pages_meta, mtime];
|
||
|
|
}
|