├── README.md
├── index.ts
└── package.json


/README.md:
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 1 | # bun-livereload
 2 | 
 3 | Wrap a function with `bun-livereload` to automatically reload any imports _inside_ the function the next time it is called.
 4 | 
 5 | ```ts
 6 | import liveReload from "bun-livereload";
 7 | 
 8 | export default {
 9 |   fetch: liveReload(async function (req: Request) {
10 |     const { render } = await import("./my-page.js");
11 |     return new Response(render(req));
12 |   }),
13 | };
14 | ```
15 | 
16 | ## Install
17 | 
18 | ```bash
19 | bun add bun-livereload
20 | ```
21 | 


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/index.ts:
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 1 | /**
 2 |  * Wrap a function with `bun-livereload` to automatically reload any imports
 3 |  * _inside_ the function the next time it is called.
 4 |  * @param callback The function to wrap.
 5 |  * @param log Whether to log the number of modules unloaded.
 6 |  * @returns The wrapped function.
 7 |  */
 8 | export function liveReload(callback: CallableFunction, log = false) {
 9 |   var registry = new Map([...Loader.registry.entries()]);
10 |   function runWithLog() {
11 |     if (Loader.registry.size !== registry.size) {
12 |       var count = 0;
13 |       for (let key of Loader.registry.keys()) {
14 |         if (!registry.has(key)) {
15 |           count++;
16 |           Loader.registry.delete(key);
17 |         }
18 |       }
19 |       if (count > 0) {
20 |         console.info(`[bun-livereload] ${count} modules unloaded`);
21 |       }
22 |     }
23 |   }
24 | 
25 |   function runWithoutLog() {
26 |     if (Loader.registry.size !== registry.size) {
27 |       for (let key of Loader.registry.keys()) {
28 |         if (!registry.has(key)) {
29 |           Loader.registry.delete(key);
30 |         }
31 |       }
32 |     }
33 |   }
34 | 
35 |   var reload = log ? runWithLog : runWithoutLog;
36 | 
37 |   const isAsync = callback?.constructor?.name === "AsyncFunction";
38 | 
39 |   if (isAsync) {
40 |     return async (...args) => {
41 |       try {
42 |         return await callback(...args);
43 |       } catch (e) {
44 |         throw e;
45 |       } finally {
46 |         reload();
47 |       }
48 |     };
49 |   } else {
50 |     return (...args) => {
51 |       try {
52 |         return callback(...args);
53 |       } catch (e) {
54 |         throw e;
55 |       } finally {
56 |         reload();
57 |       }
58 |     };
59 |   }
60 | }
61 | export default liveReload;
62 | 


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/package.json:
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 1 | {
 2 |   "name": "bun-livereload",
 3 |   "version": "1.0.2",
 4 |   "module": "index.ts",
 5 |   "main": "index.ts",
 6 |   "license": "MIT",
 7 |   "author": {
 8 |     "name": "Jarred Sumner",
 9 |     "email": "jarred@jarredsumner.com"
10 |   },
11 |   "description": "Livereload for Bun.js",
12 |   "keywords": [
13 |     "bun",
14 |     "bun.js",
15 |     "livereload",
16 |     "hmr",
17 |     "reload",
18 |     "live"
19 |   ],
20 |   "exports": {
21 |     "bun": "./index.ts"
22 |   }
23 | }
24 | 


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