Web bundle concept

.gitignore

@@ -26,4 +26,5 @@ test/cov_profile
 coverage.lcov
 
 # Build output
+deno_cache/
 out/

bundling/bundle-web.ts

@@ -0,0 +1,44 @@
+import {bundle} from "https://deno.land/x/[email protected]/mod.ts";
+import {createCache} from "https://deno.land/x/[email protected]/mod.ts";
+
+// Parse args
+const [release, source = `https://deno.land/x/grammy@${release}/mod.ts`] = Deno.args;
+if (!release) throw new Error("No release specified!");
+
+// Rewrite imports from .deno.ts to .web.ts
+const cache = createCache();
+const load = (specifier: string) => {
+    if (specifier.endsWith(".deno.ts")) {
+        const baseLength = specifier.length - ".deno.ts".length;
+        specifier = specifier.substring(0, baseLength) + ".web.ts";
+        console.log(specifier);
+    }
+    return cache.load(specifier);
+};
+
+console.log(`Bundling version '${release}' from ${source} ...`);
+// Bundle code
+const {code: bundledCode} = await bundle(
+    "../src/mod.ts",
+    {
+        load,
+        compilerOptions: {
+            sourceMap: false,
+            inlineSources: false,
+            inlineSourceMap: false,
+        }
+    }
+);
+
+console.log("Emitting ...");
+// Strip the huge inline source map which is somehow generated anyway
+await Deno.writeTextFile(
+    "../out/web.mjs",
+    bundledCode.replace(/\/\/# sourceMappingURL=.*\n/, ""),
+);
+await Deno.writeTextFile(
+    "../out/web.d.ts",
+    'export * from "./mod";\n',
+);
+
+console.log("Done.");

deno.jsonc

@@ -7,12 +7,14 @@
         "dev": "deno fmt && deno lint && deno task test && deno task check",
         "clean": "git clean -fX out test/cov_profile test/coverage coverage.lcov",
         "coverage": "deno task clean && deno task test --coverage=./test/cov_profile && deno coverage --lcov --output=./coverage.lcov ./test/cov_profile",
-        "report": "genhtml ./coverage.lcov --output-directory ./test/coverage/ && echo 'Point your browser to test/coverage/index.html to see the test coverage report.'"
+        "report": "genhtml ./coverage.lcov --output-directory ./test/coverage/ && echo 'Point your browser to test/coverage/index.html to see the test coverage report.'",
+        "bundle-web": "mkdir -p out deno_cache && cd bundling && DENO_DIR=$PWD/../deno_cache deno run --unstable --quiet --allow-net --allow-read --allow-env=DENO_DIR,XDG_CACHE_HOME,HOME,DENO_AUTH_TOKENS --allow-write=../out,$PWD/../deno_cache bundle-web.ts dev ../src/mod.ts",
     },
     "fmt": {
         "indentWidth": 4,
         "proseWrap": "preserve",
         "exclude": [
+            "./deno_cache/",
             "./node_modules/",
             "./out/",
             "./package-lock.json",
@@ -21,6 +23,7 @@
     },
     "lint": {
         "exclude": [
+            "./deno_cache/",
             "./node_modules/",
             "./out/",
             "./package-lock.json"

package.json

@@ -34,6 +34,18 @@
     ],
     "main": "./out/mod.js",
     "types": "./out/mod.d.ts",
+    "exports": {
+        ".": {
+            "types": "./out/mod.d.ts",
+            "node": "./out/mod.js",
+            "browser": "./out/web.mjs",
+            "default": "./out/web.mjs"
+        },
+        "./web": {
+            "types": "./out/web.d.ts",
+            "default": "./out/web.mjs"
+        }
+    },
     "keywords": [
         "telegram",
         "bot",

src/deps.web.ts

@@ -0,0 +1,7 @@
+export {
+    delistify,
+    GLOBAL_CONSTRUCTOR_MAP,
+    listify,
+} from "https://deno.land/x/[email protected]/mod.ts";
+export * from "https://lib.deno.dev/x/grammy@v1/mod.ts";
+export * from "https://lib.deno.dev/x/grammy@v1/types.ts";

tsconfig.json

@@ -14,5 +14,10 @@
         "skipLibCheck": true,
         "target": "es2019"
     },
-    "include": ["src/"]
+    "include": [
+      "src/"
+    ],
+    "exclude": [
+        "src/*.web.ts"
+    ]
 }