cleanup

README.md

@@ -0,0 +1,48 @@
+# ESBuild Typescript Bunder
+
+## Supports import maps and runs on Deno Deploy
+Uses the WASM version of ESBuild for use on Deno Deploy and adds some plugins to allow for import maps. ***Unfortunately, `npm:*` and `jsr:*` specifiers are not supported currently***.
+
+### Manual Bundle API
+```typescript
+import Bundle from "./mod.ts";
+Bundle(
+    // directory to work from
+    "./some_folder",
+
+    // ESBuild configuration (entry points are relative to "directory"):
+    {entry:["./app.tsx"]},
+
+    // import map (if omitted, will scan for a deno configuration within "directory" and use that)
+    {"imports": {
+        "react": "https://esm.sh/preact@10.22.0/compat",
+        "react/": "https://esm.sh/preact@10.22.0/compat/"
+    }}
+);
+if(outputFiles){
+    for(const item of outputFiles){
+        // do something with the output...
+        console.log(item.text);
+    }
+}
+```
+
+### Static bundle server
+
+#### API
+```typescript
+import Serve from "./serve.tsx";
+Serve({path:"./some_folder", html:"index.html", port:8080});
+```
+
+#### CLI
+```
+deno run -A <hosted-location>/serve.tsx --path=./some_folder --html=index.html --port=8080
+```
+
+Accepts three optional settings:
+- `path` A directory to serve content from. Defaults to the current working directory.
+- `html` A path to an html file or actual html string to *always use* when the server would serve up a non-file route. If `html` is a path, it is assumed to be relative to `path`. If not specified, routes that don't match files will 404.
+- `port` Port number (default is 8000).
+
+When requests to typescript files are made to the server, it will treat that file as an entrypoint and return the corresponding plain javascript bundle.

deno.json

@@ -2,19 +2,8 @@
     "name": "@ttf/wasm-bundle",
     "version": "0.1.0",
     "exports": "./mod.ts",
-    "imports": {
-        "react": "https://esm.sh/preact@10.22.0/compat",
-        "react/": "https://esm.sh/preact@10.22.0/compat/",
-        "other": "./other.tsx",
-        "entry": "./app.tsx",
-        "config": "./deno.json"
-    },
     "tasks": {
-        "go": "deno run -A bundler-inc.tsx",
-        "serve": "deno run -A serve.tsx"
-    },
-    "compilerOptions": {
-        "jsx": "react-jsx",
-        "jsxImportSource": "react"
+        "serve": "deno run -A --no-lock serve.tsx --path=./test --html=index.html",
+        "jsapi": "deno run -A --no-lock jsapi.tsx"
     }
 }

deno.lock

@@ -1,18 +0,0 @@
-{
-  "version": "3",
-  "remote": {
-    "https://deno.land/x/esbuild@v0.19.2/wasm.js": "5ffeb3d973e57351eb4d2d03ffafc8ce5672e946d0f0a786c4aed2ca29cec004",
-    "https://deno.land/x/jsonct@v0.1.0/mod.ts": "dba7e7f3529be6369f5c718e3a18b69f15ffa176006d2a7565073ce6c5bd9f3f",
-    "https://deno.land/x/jsonct@v0.1.0/src/_util/asserts.ts": "178dfc49a464aee693a7e285567b3d0b555dc805ff490505a8aae34f9cfb1462",
-    "https://deno.land/x/jsonct@v0.1.0/src/parse.ts": "a3a016822446b0584b40bae9098df480db5590a9915c9e3c623ba2801cf1b8df",
-    "https://esm.sh/esbuild-plugin-importmaps@1.0.0": "ab9e79660ff4d57d2ed7ef5e8516fbe0e79305267f22e1e7270d0a17ae0c2029",
-    "https://esm.sh/preact@10.22.0/compat/jsx-runtime": "a2f6ddc2ce374813df1c13826a9ad010e90b5a70a989f1069a367ef60dd52eb0",
-    "https://esm.sh/stable/preact@10.22.0/denonext/compat.js": "7c0b206984707cfef58efae492ea8d5212b8f620dd8c83294a5c832fb422c766",
-    "https://esm.sh/stable/preact@10.22.0/denonext/compat/jsx-runtime.js": "fecfa3df69d580507801575175087de9a2a9fc23bb4900004a1f4cbd5b362634",
-    "https://esm.sh/stable/preact@10.22.0/denonext/hooks.js": "09230113132c216bbc3847aaad11289771e088be1b0eb9e49cbc724faaeac205",
-    "https://esm.sh/stable/preact@10.22.0/denonext/jsx-runtime.js": "de60943799b1cbe6066c4f83f4ca71ef37011d7f5be7bef58ed980e8ff3f996a",
-    "https://esm.sh/stable/preact@10.22.0/denonext/preact.mjs": "20c9563e051dd66e053d3afb450f61b48f2fa0d0ce4f69f8f0a2f23c1ef090da",
-    "https://esm.sh/v135/@jspm/import-map@1.0.8/denonext/import-map.mjs": "fc291e729df6bef849df47df8893b64749785ca65fd5fe1d0e7969db5d3b63ea",
-    "https://esm.sh/v135/esbuild-plugin-importmaps@1.0.0/denonext/esbuild-plugin-importmaps.mjs": "08b603d074dd2861345f7d224c255c46d7f7213a283026552c492f465fe595ce"
-  }
-}

introspect.ts

@@ -2,16 +2,21 @@ import { parse as JSONC } from "https://deno.land/x/jsonct@v0.1.0/mod.ts";
 
 type JsonLike = { [key: string]: string | string[] | JsonLike; };
 
-/** A `file://` url version of Deno.cwd() */
-export const Root = new URL(`file://${Deno.cwd().replaceAll("\\", "/")}`).toString() + "/";
-export default async function HuntConfig()
+/** A `file://` url version of Deno.cwd() (contains trailing slash) */
+export const Root:string = new URL(`file://${Deno.cwd().replaceAll("\\", "/")}`).toString() + "/";
+export default async function HuntConfig(directory=Root):Promise<{
+    imports: JsonLike;
+    compilerOptions: JsonLike;
+}>
 {
     let path:string, json:JsonLike|undefined;
-
+    console.log("searchig in directory", directory)
     const loadJSON =async(inPath:string)=>{
         try{
-            const resp = await fetch(Root + inPath);
-            if(inPath.endsWith(".jsonc"))
+            const path = new URL(inPath, directory);
+            console.log("looking at", path.href);
+            const resp = await fetch(path);
+            if(inPath.endsWith("./.jsonc"))
             {
                 const text = await resp.text();
                 json = JSONC(text) as JsonLike;
@@ -30,20 +35,20 @@ export default async function HuntConfig()
 
     try// look for `deno.json`
     {
-        json = await loadJSON("deno.json");
+        json = await loadJSON("./deno.json");
     }
     catch(_e)
     {
         
         try // look for `deno.jsonc`
         {
-            json = await loadJSON("deno.jsonc");
+            json = await loadJSON("./deno.jsonc");
         }
         catch(_e)
         {
             try // look in the vscode plugin settings
             {
-                json = await loadJSON(".vscode/settings.json")
+                json = await loadJSON("./.vscode/settings.json")
                 path = json ? json["deno.config"] as string : "";
                 json = undefined;
                 if(path)

jsapi.test.tsx

@@ -0,0 +1,11 @@
+import * as Test from "https://deno.land/std@0.224.0/assert/mod.ts";
+import Bundle, {ESBuild} from "./mod.ts";
+
+
+const path = await import.meta.resolve("./test/");
+const {outputFiles} = await Bundle(path, {entryPoints:["./app.tsx"]});
+
+Deno.test("check", ()=>{
+    Test.assert(outputFiles?.length == 1);
+    Test.assert(outputFiles[0].text.length > 1000);
+})

mod.ts

@@ -1,14 +1,14 @@
 import * as ESBuild from "https://deno.land/x/esbuild@v0.19.2/wasm.js";
 import * as Mapper from "https://esm.sh/esbuild-plugin-importmaps@1.0.0"; // https://github.com/andstellar/esbuild-plugin-importmaps
-import Introspect, {Root} from "./introspect.ts";
+import Introspect from "./introspect.ts";
 
 const prefix = "/_dot_importer_/";
-const resolvePlugin:ESBuild.Plugin = {
+const resolvePlugin =(fullPathDir:string):ESBuild.Plugin=>({
   name: "resolve-plugin",
   setup(build) {
     build.onResolve({ filter: /^(\.\/|\.\.\/).*/ }, (args)=>
     {
-      let resolveRoot = args.importer||Root;
+      let resolveRoot = args.importer||fullPathDir;
       if(resolveRoot.startsWith(prefix))
       {
         resolveRoot = resolveRoot.substring(prefix.length);
@@ -21,23 +21,31 @@ const resolvePlugin:ESBuild.Plugin = {
     });
     build.onLoad({ filter: /.*/, namespace:"http" }, async(args)=> {
       const fetchPath = args.path.substring(prefix.length);
+      console.log("fetch path", fetchPath);
       const result = await fetch(fetchPath);
       const contents = await result.text();
       return { contents, loader: `tsx` };
     });
   },
-};
+});
 
 await ESBuild.initialize({ worker: false });
 export type ImportMap = Parameters<typeof Mapper.importmapPlugin>[0];
 export type BuildOptions = ESBuild.BuildOptions;
-export default async function(buildOptions={} as BuildOptions, importMap:ImportMap|false = false):Promise<ESBuild.BuildResult<ESBuild.BuildOptions>>
+/**
+ * 
+ * @param directory Full file:// or http(s):// path to the directory containing assets you want to build (needed to resolve relative imports)
+ * @param buildOptions ESBuild "build" options (will be merged with "reasonable defaults") for docs: https://esbuild.github.io/api/#general-options
+ * @param importMap An object to act as the import map ({imports:Record<string, string>}). If this is left blank, a configuration will be scanned for in the "directory"
+ * @returns build result
+ */
+export default async function(directory:string, buildOptions={} as BuildOptions, importMap?:ImportMap):Promise<ESBuild.BuildResult<ESBuild.BuildOptions>>
 {
-  if(importMap === false)
+  if(!importMap)
   {
-    importMap = await Introspect() as ImportMap;
+    importMap = await Introspect(directory) as ImportMap
   }
-
+  console.log("using import map", importMap);
   const configuration:ESBuild.BuildOptions = {
     entryPoints: ["entry"],
     bundle: true,
@@ -47,7 +55,7 @@ export default async function(buildOptions={} as BuildOptions, importMap:ImportM
     jsxImportSource: "react",
     ...buildOptions,
     plugins: [
-      resolvePlugin,
+      resolvePlugin(directory),
       Mapper.importmapPlugin(importMap) as ESBuild.Plugin,
       ...buildOptions.plugins||[]
     ]

serve.tsx

@@ -1,19 +1,39 @@
-import bundler from "./mod.ts";
 import mime from "https://esm.sh/mime@4.0.3";
 import { parseArgs } from "jsr:@std/cli/parse-args";
-
-
+import bundler, {type ESBuild, type ImportMap} from "./mod.ts";
+import Introspect from "./introspect.ts";
 
 if(Deno.mainModule == import.meta.url)
 {
     serve(parseArgs(Deno.args) as ServeArgs);
 }
 
-type ServeArgs = {path?:string, html?:string, port?:string|number};
-function serve(settings:ServeArgs):void
+export type ServeArgs = {path?:string, html?:string, port?:string|number};
+async function serve(settings:ServeArgs):Promise<void>
 {
+    // etag hash
+    const ETag = new Date().getTime().toString();
+
+    // extra parsing
+    const ExtensionsJS = ["tsx", "ts", "jsx", "js", "jsx", "mjs"];
+    const PathExtensionType=(inPath:string)=>
+    {
+        const path = inPath.endsWith("/") ? inPath.substring(0, inPath.length-1) : inPath;
+        const posDot = path.lastIndexOf(".");
+        const extension = (posDot > path.lastIndexOf("/")) ? path.substring(posDot+1) : null;
+        let type:string|null = null
+        if(extension)
+        {
+            type = (ExtensionsJS.includes(extension)) ? "application/javascript" : mime.getType(extension);
+        }
+
+        return {path, extension, type};
+    }
+
+    // base path
     let basePath = "";
-    const SetDirectory =(inPath:string)=>{
+    let DenoConfig:ImportMap
+    const SetDirectory =async(inPath:string)=>{
         if(inPath.startsWith("http://")||inPath.startsWith("https://")||inPath.startsWith("file://"))
         {
             basePath = inPath;
@@ -27,108 +47,105 @@ function serve(settings:ServeArgs):void
             basePath = basePath + "/";
         }
         console.log("Base Path:", basePath);
+
+        DenoConfig = await Introspect(basePath) as ImportMap;
+        console.log("found config", DenoConfig);
     }
+    await SetDirectory(settings.path||"./");
 
-    SetDirectory(settings.path||"./");
-
+    // bundler
     const transpiled:Map<string, string> = new Map();
-    const ServeJSCode =(inText:string)=> new Response(inText, {headers:{"content-type":"application/javascript"}});
-    const ServeStatic =async(inPath:string)=>
+    const defaultConfig:ESBuild.BuildOptions = { entryPoints:[] as string[], outdir:"/", entryNames: `[dir][name]`, splitting: true };
+    const bundle =async(pathName:string, pathBase:string, buildConfig:ESBuild.BuildOptions = {}):Promise<string|void>=>
     {
+        const lookupKey = pathName.substring(0, pathName.lastIndexOf("."))+".js";
+        const lookup = transpiled.get(lookupKey);
+        if(lookup)
+        {
+            return lookup;
+        }
+        buildConfig = {...defaultConfig, ...buildConfig}
+        buildConfig.entryPoints = [pathBase+pathName];
         try
         {
-            const handle = await fetch(basePath+inPath.substring(1));
-            return new Response(handle.body, {headers:{"content-type": mime.getType(inPath)??""}})        
-        }
-        catch(_e)
-        {
-            return resp404;
+            const results = await bundler(basePath, buildConfig, DenoConfig);
+            if(results.outputFiles)
+            {
+                results.outputFiles.forEach(output=>{transpiled.set(output.path, output.text); console.log("building", output.path);})
+                return results.outputFiles[0].text;
+            }            
         }
+        catch(_e){return;}
     };
-    
+
+    // index html serving
     const resp404 = new Response("404", {status:404});
-    let respIndex:false|Response|Promise<Response> = false;
+    const resp304 = new Response(null, {status:304});
+    let respIndexBody:false|string = false;
     if(settings.html)
     {
-        if(settings.html.indexOf("<") != -1)
+        if(settings.html.indexOf("<") != -1) // if html is actual markup instead of a url
         {
-            respIndex= new Response(settings.html, {headers:{"content-type":"text-html"}});
+            respIndexBody = settings.html;
         }
         else
         {
-            respIndex = ServeStatic(settings.html);
+            const load = await fetch(basePath+settings.html);
+            respIndexBody = await load.text();
         }
     }
-    
 
-    Deno.serve({port:parseInt(settings.port as string)||8000}, async(req)=>{
-        const url = new URL(req.url);
-        const index = url.pathname.lastIndexOf(".");
-        if(index > -1)
-        {
-            const ext = url.pathname.substring(index+1);
-            if(ext === "ts" || ext == "tsx" || ext == "js" || ext == "jsx")
-            {
-                if(ext == "js")
-                {
-                    const lookup = transpiled.get(url.pathname);
-                    if(lookup)
-                    {
-                        return ServeJSCode(lookup);
-                    }
-                }
-                else
-                {
-                    const lookup = transpiled.get(url.pathname.substring(0, index)+".js");
-                    if(lookup)
-                    {
-                        return ServeJSCode(lookup);
-                    }
-                }
-                try
-                {
-                    const results = await bundler({
-                        entryPoints:[basePath+url.pathname],
-                        outdir:"/",
-                        entryNames: `[dir][name]`,
-                        splitting: true
-                    });
-                    if(results.outputFiles)
-                    {
-                        results.outputFiles.forEach(output=>transpiled.set(output.path, output.text))
-                        return ServeJSCode(results.outputFiles[0].text);
-                    }
-                    else
-                    {
-                        throw(new Error("no output"));
-                    }
-                }
-                catch(_e)
-                {
-                    return resp404;
-                }
-            }
-            else
-            {
-                return ServeStatic(url.pathname);
-            }
-    
+    ///// go
+    Deno.serve({port:parseInt(settings.port as string)||8000}, async(req)=>
+    {
+        const checkHash = req.headers.get("if-none-match")
+        if(checkHash === ETag){
+            return resp304;
         }
 
-        if(respIndex)
+        const url = new URL(req.url);
+        const {path, type} = PathExtensionType(url.pathname);
+        const headers = {"content-type":type||"", ETag, "Cache-Control":"max-age=3600"}
+
+        // serve javascript
+        if(type === "application/javascript")
         {
-            return respIndex;
+            const checkBuild = await bundle(path, basePath);
+            if(checkBuild)
+            {
+                return new Response(checkBuild, {headers});
+            }            
+        }
+
+        // serve static
+        if(type)
+        {
+            try{
+                const handle = await fetch(basePath+path.substring(1));
+                return new Response(handle.body, {headers});
+            }
+            catch(_e){
+                return resp404;
+            }     
+        }
+
+        // serve routes/implied index html files
+        if(respIndexBody)
+        {
+            return new Response(respIndexBody, {headers});
         }
         else
         {
-            let indexLookup = url.pathname;
-            if(!indexLookup.endsWith("/"))
-            {
-                indexLookup = indexLookup+"/";
+            try{
+                const handle = await fetch(basePath+path.substring(1));
+                headers["content-type"] = "text/html"
+                return new Response(handle.body, {headers});
+            }
+            catch(_e){
+                return resp404;
             }
-            return ServeStatic(indexLookup+"index.html");            
         }
-        
+
     });
 }
 

test/deno.json

@@ -0,0 +1,10 @@
+{
+    "imports": {
+        "react":  "https://esm.sh/preact@10.22.0/compat",
+        "react/": "https://esm.sh/preact@10.22.0/compat/"
+    },
+    "compilerOptions": {
+        "jsx": "react-jsx",
+        "jsxImportSource": "react"
+    }
+}

test/leaf.ts

@@ -0,0 +1,2 @@
+const message:string = "leaf default export!"
+export default ()=>console.log(message);