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hmr #1

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SethTrowbridge merged 9 commits from hmr into master 2023-04-01 11:13:22 -04:00
Conversation 0 Commits 9 Files Changed 7 +115 -138
3 changed files with 115 additions and 138 deletions
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3
deno.json
View File

@ -1,6 +1,7 @@
{
"tasks":
{
"install": "deno install -f -A --unstable --no-lock -n tsx server.tsx"
"install": "deno install -f -A --unstable --no-lock -n tsx server.tsx",
"run": "deno run -A --unstable --no-lock server.tsx"
}
}

10
deno.lock
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@ -1,10 +0,0 @@
{
"version": "2",
"remote": {
"https://deno.land/std@0.151.0/async/debounce.ts": "564273ef242bcfcda19a439132f940db8694173abffc159ea34f07d18fc42620",
"https://deno.land/x/denoflate@1.2.1/mod.ts": "f5628e44b80b3d80ed525afa2ba0f12408e3849db817d47a883b801f9ce69dd6",
"https://deno.land/x/denoflate@1.2.1/pkg/denoflate.js": "b9f9ad9457d3f12f28b1fb35c555f57443427f74decb403113d67364e4f2caf4",
"https://deno.land/x/denoflate@1.2.1/pkg/denoflate_bg.wasm.js": "d581956245407a2115a3d7e8d85a9641c032940a8e810acbd59ca86afd34d44d",
"https://deno.land/x/esbuild@v0.14.45/mod.js": "ab18347f6a57e56f776a9997a5b726f7f6c8d1f008f08e41e7273be8c31e12f4"
}
}

240
server.tsx
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@ -1,108 +1,77 @@
import * as ESBuild from 'https://deno.land/x/esbuild@v0.14.45/mod.js';
import * as MIME from "https://deno.land/std@0.180.0/media_types/mod.ts";
import { debounce } from "https://deno.land/std@0.151.0/async/debounce.ts";
console.log(`Serving files from "${Deno.cwd()}"`);
const MIME:Record<string, string> = {
".aac": "audio/aac",
".abw": "application/x-abiword",
".arc": "application/x-freearc",
".avif": "image/avif",
".avi": "video/x-msvideo",
".azw": "application/vnd.amazon.ebook",
".bin": "application/octet-stream",
".bmp": "image/bmp",
".bz": "application/x-bzip",
".bz2": "application/x-bzip2",
".cda": "application/x-cdf",
".csh": "application/x-csh",
".css": "text/css",
".csv": "text/csv",
".doc": "application/msword",
".docx": "application/vnd.openxmlformats-officedocument.wordprocessingml.document",
".eot": "application/vnd.ms-fontobject",
".epub": "application/epub+zip",
".gz": "application/gzip",
".gif": "image/gif",
".htm": "text/html",
".html": "text/html",
".ico": "image/x-icon",
".ics": "text/calendar",
".jar": "application/java-archive",
".jpeg": "image/jpeg",
".jpg": "image/jpeg",
".js": "application/javascript",
".jsx": "application/javascript",
".json": "application/json",
".jsonld": "application/ld+json",
".mid": "audio/midi",
".midi": "audio/midi",
".mjs": "text/javascript",
".mp3": "audio/mpeg",
".mp4": "video/mp4",
".mpeg": "video/mpeg",
".mpkg": "application/vnd.apple.installer+xml",
".odp": "application/vnd.oasis.opendocument.presentation",
".ods": "application/vnd.oasis.opendocument.spreadsheet",
".odt": "application/vnd.oasis.opendocument.text",
".oga": "audio/ogg",
".ogv": "video/ogg",
".ogx": "application/ogg",
".opus": "audio/opus",
".otf": "font/otf",
".png": "image/png",
".pdf": "application/pdf",
".php": "application/x-httpd-php",
".ppt": "application/vnd.ms-powerpoint",
".pptx": "application/vnd.openxmlformats-officedocument.presentationml.presentation",
".rar": "application/vnd.rar",
".rtf": "application/rtf",
".sh": "application/x-sh",
".svg": "image/svg+xml",
".swf": "application/x-shockwave-flash",
".tar": "application/x-tar",
".tif": "image/tiff",
".tiff": "image/tiff",
".ts": "application/javascript",
".tsx": "application/javascript",
".ttf": "font/ttf",
".txt": "text/plain",
".vsd": "application/vnd.visio",
".wav": "audio/wav",
".weba": "audio/webm",
".webm": "video/webm",
".webp": "image/webp",
".woff": "font/woff",
".woff2": "font/woff2",
".xhtml": "application/xhtml+xml",
".xls": "application/vnd.ms-excel",
".xlsx": "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet",
".xml": "application/xml",
".xul": "application/vnd.mozilla.xul+xml",
".zip": "application/zip",
".3gp": "video/3gpp",
".3g2": "video/3gpp2",
".7z": "application/x-7z-compressed"
};
const Type =(inPath:string):string|undefined=>
{
const dot:number = inPath.lastIndexOf(".");
const ext = dot > -1 ? inPath.substring(dot) : ".html";
return MIME[ext];
};
const Transpiled = new Map();
const Transpile =async(inPath:string, inKey:string):Promise<string>=>
/**
* checks for (.tsx | .jsx | .ts | .js) extensions
*/
export const Transpileable =(inFilePath:string):boolean=>
{
let dotIndex = inFilePath.length-4;
if(inFilePath[dotIndex] !== ".")
{
if(inFilePath[++dotIndex] !== ".")
{
return false;
}
}
if(inFilePath[dotIndex+2] == "s")
{
const first = inFilePath[dotIndex+1];
return (first == "t" || first == "j");
}
return false;
};
export const Transpile =async(inPath:string, inKey:string):Promise<string>=>
{
const body = await Deno.readTextFile(inPath);
const transpile = await ESBuild.transform(body, { loader: "tsx", sourcemap: "inline" });
const transpile = await ESBuild.transform(body, { loader: "tsx", sourcemap: "inline", minify:true });
Transpiled.set(inKey, transpile.code);
return transpile.code;
};
const confDeno = await Deno.readTextFile(Deno.cwd()+"/deno.json");
const pathImport = JSON.parse(confDeno).importMap;
const confImports = await Deno.readTextFile(pathImport);
let ImportString = ``;
let ImportObject = {};
try
{
const confDeno = await Deno.readTextFile(Deno.cwd()+"/deno.json");
const confDenoParsed:{importMap?:string, imports?:string} = JSON.parse(confDeno);
if(confDenoParsed.importMap)
{
try
{
const confImports = await Deno.readTextFile(confDenoParsed.importMap);
try
{
ImportObject = JSON.parse(confImports);
ImportString = confImports;
}
catch(e)
{
console.log(`importMap "${confDenoParsed.importMap}" contains invalid JSON`);
}
}
catch(e)
{
console.log(`importMap "${confDenoParsed.importMap}" cannot be found`);
}
}
else if(confDenoParsed.imports)
{
ImportObject = {imports:confDenoParsed.imports};
ImportString = JSON.stringify(ImportObject);
}
}
catch(e)
{
console.log(`deno.json not found`);
}
const Index = `
<!doctype html>
<html>
@ -111,7 +80,7 @@ const Index = `
</head>
<body>
<div id="app">Loading</div>
<script type="importmap">${confImports}</script>
<script type="importmap">${ImportString}</script>
<script async src="https://ga.jspm.io/npm:es-module-shims@1.5.1/dist/es-module-shims.js" crossorigin="anonymous"></script>
<script type="module">
import * as TW from "https://esm.sh/@twind/core@1.0.1";
@ -136,43 +105,31 @@ const Index = `
Deno.serve({ port: 3000 }, async(_req:Request) =>
{
const url:URL = new URL(_req.url);
const type = Type(url.pathname);
const fsPath = Deno.cwd()+url.pathname;
console.log(`Request for "${url.pathname}"...`);
try
{
let body:BodyInit;
if(type == "application/javascript")
// serve index by default
let type = `text/html`;
let body:BodyInit = Index;
// serve .tsx .jsx .ts .js
if(Transpileable(url.pathname))
{
body = Transpiled.get(url.pathname);
type = `application/javascript`;
if(!body)
{
body = await Transpile(fsPath, url.pathname);
console.log(` ...added to cache`);
}
else
{
console.log(` ...retrieved from cache`);
}
}
else
// serve static media
else if( url.pathname.endsWith("/") === false)
{
if(url.pathname == "/")
{
body = Index;
}
else
{
let file = fsPath;
if(url.pathname.endsWith("/"))
{
console.log(` ...implied index.html`);
file += "index.html";
}
body = await Deno.readFile(file);
}
body = await Deno.readFile(fsPath);
type = MIME.typeByExtension(url.pathname.substring(url.pathname.lastIndexOf("."))) || "text/html";
}
return new Response(body, {headers:{"content-type":type as string}});
@ -184,30 +141,59 @@ Deno.serve({ port: 3000 }, async(_req:Request) =>
}
});
const filesChanged:Map<string, string> = new Map();
const Sockets:Set<WebSocket> = new Set();
const SocketsBroadcast =(inData:string)=>{ for (const socket of Sockets){ socket.send(inData); } }
Deno.serve({ port: 3001 }, (_req:Request) =>
{
if(_req.headers.get("upgrade") == "websocket")
{
try
{
const { response, socket } = Deno.upgradeWebSocket(_req);
socket.onopen = () =>
{
Sockets.add(socket);
console.log("Overwatch: Socket created");
};
socket.onclose = () =>
{
Sockets.delete(socket);
console.log("Overwatch: Socket deleted");
};
socket.onmessage = (e) => {};
socket.onerror = (e) => console.log("Overwatch: Socket errored:", e);
return response;
}
catch(e)
{
//
}
}
return new Response("Overwatch: Not a websocket request.");
});
const FilesChanged:Map<string, string> = new Map();
const ProcessFiles =debounce(async()=>
{
console.log("Files changed...")
for await (const [file, action] of filesChanged)
for await (const [file, action] of FilesChanged)
{
const pathname = file.substring(Deno.cwd().length).replaceAll("\\", "/");
const type = Type(pathname);
console.log(pathname, type, action);
if(type == "application/javascript")
console.log(pathname, action);
if(Transpileable(pathname))
{
if(action !== "remove")
{
await Transpile(file, pathname);
console.log(` ...cached "${pathname}"`);
SocketsBroadcast(pathname);
}
}
}
filesChanged.clear();
FilesChanged.clear();
}, 1000);
const watcher = Deno.watchFs(Deno.cwd());
for await (const event of watcher)
for await (const event of Deno.watchFs(Deno.cwd()))
{
event.paths.forEach( path => filesChanged.set(path, event.kind) );
event.paths.forEach( path => FilesChanged.set(path, event.kind) );
ProcessFiles();
}