fix(swc/cli): correctly expose swcx entrypoint

.npmignore

@@ -12,6 +12,7 @@ yarn.lock
 package-lock.json
 *.log
 .idea/
+docs/
 
 wasm/
 

node-swc/src/swcx.ts

@@ -0,0 +1,82 @@
+#!/usr/bin/env node
+
+/**
+ * Lightweight entrypoint to native swc cli binary.
+ *
+ * This is to locate corresponding per-platform executables correctly, as well as
+ * let npm links binary to `node_modules/.bin` allows npm-related ecosystem (`npx swcx`, etcs)
+ * works correctly. However, it means spawning native binary still requires warmup from node.js
+ * process.
+ *
+ * NOTE: THIS IS NOT A PERMANENT APPROACH.
+ * Distribution of native cli binary is not fully concluded yet. This allows easier
+ * opt-in while implementation is in progress to collect feedback.
+ */
+import { spawn, StdioOptions } from "child_process";
+import path from "path";
+import { readFileSync } from "fs";
+
+const { platform, arch } = process;
+
+const isMusl = () => (() => {
+  function isMusl() {
+    if (!process.report || typeof process.report.getReport !== "function") {
+      try {
+        return readFileSync("/usr/bin/ldd", "utf8").includes("musl");
+      } catch (e) {
+        return true;
+      }
+    } else {
+      const { glibcVersionRuntime } = (process.report.getReport() as any).header;
+      return !glibcVersionRuntime;
+    }
+  }
+
+  return isMusl();
+})();
+
+
+const platformPackagesMap: Record<string, Partial<Record<string, string>>> = {
+  "android": {
+    "arm64": "@swc/core-android-arm64",
+    "arm": "@swc/core-android-arm-eabi",
+  },
+  "win32": {
+    "x64": "@swc/core-win32-x64-msvc",
+    "ia32": "@swc/core-win32-ia32-msvc",
+    "arm64": "@swc/core-win32-arm64-msvc"
+  },
+  "darwin": {
+    "x64": "@swc/core-darwin-x64",
+    "arm64": "@swc/core-darwin-arm64",
+  },
+  "freebsd": {
+    "x64": "@swc/core-freebsd-x64",
+  },
+  "linux": {
+    "x64": `@swc/core-linux-x64-${isMusl() ? 'musl' : 'gnu'}`,
+    "arm64": `@swc/core-linux-arm64-${isMusl() ? 'musl' : 'gnu'}`,
+    "arm": "@swc/core-linux-arm64-gnu"
+  },
+};
+
+const inferBinaryName = () => {
+  const packageName = platformPackagesMap[platform][arch];
+
+  if (!packageName) {
+    throw new Error(`Unsupported platform: binary for '${platform} ${arch}' is not available`);
+  }
+
+  return path.join(path.dirname(require.resolve(packageName)), platform === 'win32' ? 'swc.exe' : 'swc');
+}
+
+
+const executeBinary = async () => {
+  const binary = inferBinaryName();
+  const [, , ...args] = process.argv;
+  const options = { cwd: process.cwd(), stdio: "inherit" as StdioOptions };
+
+  return spawn(binary, args, options);
+};
+
+executeBinary().catch((e) => console.error(e));

package.json

@@ -4,6 +4,9 @@
     "description": "Super-fast alternative for babel",
     "homepage": "https://swc.rs",
     "main": "./index.js",
+    "bin": {
+        "swcx": "swcx.js"
+    },
     "author": "강동윤 <[email protected]>",
     "license": "Apache-2.0",
     "keywords": [
@@ -102,5 +105,20 @@
     "funding": {
         "type": "opencollective",
         "url": "https://opencollective.com/swc"
+    },
+    "optionalDependencies": {
+        "@swc/core-win32-x64-msvc": "1.2.146",
+        "@swc/core-darwin-x64": "1.2.146",
+        "@swc/core-linux-x64-gnu": "1.2.146",
+        "@swc/core-linux-x64-musl": "1.2.146",
+        "@swc/core-freebsd-x64": "1.2.146",
+        "@swc/core-win32-ia32-msvc": "1.2.146",
+        "@swc/core-linux-arm64-gnu": "1.2.146",
+        "@swc/core-linux-arm-gnueabihf": "1.2.146",
+        "@swc/core-darwin-arm64": "1.2.146",
+        "@swc/core-android-arm64": "1.2.146",
+        "@swc/core-linux-arm64-musl": "1.2.146",
+        "@swc/core-win32-arm64-msvc": "1.2.146",
+        "@swc/core-android-arm-eabi": "1.2.146"
     }
-}
+}

scripts/npm/android-arm-eabi/package.json

@@ -12,9 +12,6 @@
         "swc.android-arm-eabi.node",
         "swc"
     ],
-    "bin": {
-        "swcx": "swc"
-    },
     "description": "Super-fast alternative for babel",
     "keywords": [
         "swc",

scripts/npm/android-arm64/package.json

@@ -12,9 +12,6 @@
         "swc.android-arm64.node",
         "swc"
     ],
-    "bin": {
-        "swcx": "swc"
-    },
     "description": "Super-fast alternative for babel",
     "keywords": [
         "swc",

scripts/npm/darwin-arm64/package.json

@@ -12,9 +12,6 @@
         "swc.darwin-arm64.node",
         "swc"
     ],
-    "bin": {
-        "swcx": "swc"
-    },
     "description": "Super-fast alternative for babel",
     "keywords": [
         "swc",

scripts/npm/darwin-x64/package.json

@@ -12,9 +12,6 @@
         "swc.darwin-x64.node",
         "swc"
     ],
-    "bin": {
-        "swcx": "swc"
-    },
     "description": "Super-fast alternative for babel",
     "keywords": [
         "swc",

scripts/npm/freebsd-x64/package.json

@@ -12,9 +12,6 @@
         "swc.freebsd-x64.node",
         "swc"
     ],
-    "bin": {
-        "swcx": "swc"
-    },
     "description": "Super-fast alternative for babel",
     "keywords": [
         "swc",

scripts/npm/linux-arm-gnueabihf/package.json

@@ -12,9 +12,6 @@
         "swc.linux-arm-gnueabihf.node",
         "swc"
     ],
-    "bin": {
-        "swcx": "swc"
-    },
     "description": "Super-fast alternative for babel",
     "keywords": [
         "swc",

scripts/npm/linux-arm64-gnu/package.json

@@ -12,9 +12,6 @@
         "swc.linux-arm64-gnu.node",
         "swc"
     ],
-    "bin": {
-        "swcx": "swc"
-    },
     "description": "Super-fast alternative for babel",
     "keywords": [
         "swc",

scripts/npm/linux-arm64-musl/package.json

@@ -12,9 +12,6 @@
         "swc.linux-arm64-musl.node",
         "swc"
     ],
-    "bin": {
-        "swcx": "swc"
-    },
     "description": "Super-fast alternative for babel",
     "keywords": [
         "swc",

scripts/npm/linux-x64-gnu/package.json

@@ -12,9 +12,6 @@
         "swc.linux-x64-gnu.node",
         "swc"
     ],
-    "bin": {
-        "swcx": "swc"
-    },
     "description": "Super-fast alternative for babel",
     "keywords": [
         "swc",

scripts/npm/linux-x64-musl/package.json

@@ -12,9 +12,6 @@
         "swc.linux-x64-musl.node",
         "swc"
     ],
-    "bin": {
-        "swcx": "swc"
-    },
     "description": "Super-fast alternative for babel",
     "keywords": [
         "swc",

scripts/npm/win32-arm64-msvc/package.json

@@ -12,9 +12,6 @@
         "swc.win32-arm64-msvc.node",
         "swc.exe"
     ],
-    "bin": {
-        "swcx": "swc.exe"
-    },
     "description": "Super-fast alternative for babel",
     "keywords": [
         "swc",

scripts/npm/win32-ia32-msvc/package.json

@@ -12,9 +12,6 @@
         "swc.win32-ia32-msvc.node",
         "swc.exe"
     ],
-    "bin": {
-        "swcx": "swc.exe"
-    },
     "description": "Super-fast alternative for babel",
     "keywords": [
         "swc",

scripts/npm/win32-x64-msvc/package.json

@@ -12,9 +12,6 @@
         "swc.win32-x64-msvc.node",
         "swc.exe"
     ],
-    "bin": {
-        "swcx": "swc.exe"
-    },
     "description": "Super-fast alternative for babel",
     "keywords": [
         "swc",

tsconfig.json

@@ -4,7 +4,7 @@
     "target": "es2015" /* Specify ECMAScript target version: 'ES3' (default), 'ES5', 'ES2015', 'ES2016', 'ES2017','ES2018' or 'ESNEXT'. */,
     "module": "commonjs" /* Specify module code generation: 'none', 'commonjs', 'amd', 'system', 'umd', 'es2015', or 'ESNext'. */,
     // "lib": [],                             /* Specify library files to be included in the compilation. */
-    "allowJs": true,                          /* Allow javascript files to be compiled. */
+    "allowJs": true, /* Allow javascript files to be compiled. */
     // "checkJs": true,                       /* Report errors in .js files. */
     // "jsx": "preserve",                     /* Specify JSX code generation: 'preserve', 'react-native', or 'react'. */
     "declaration": true /* Generates corresponding '.d.ts' file. */,
@@ -14,7 +14,7 @@
     "outDir": "./" /* Redirect output structure to the directory. */,
     "rootDir": "./node-swc/src" /* Specify the root directory of input files. Use to control the output directory structure with --outDir. */,
     // "composite": true,                     /* Enable project compilation */
-    // "removeComments": true,                /* Do not emit comments to output. */
+    "removeComments": false, /* Do not emit comments to output. */
     // "noEmit": true,                        /* Do not emit outputs. */
     // "importHelpers": true,                 /* Import emit helpers from 'tslib'. */
     // "downlevelIteration": true,            /* Provide full support for iterables in 'for-of', spread, and destructuring when targeting 'ES5' or 'ES3'. */
@@ -52,6 +52,10 @@
     // "experimentalDecorators": true,        /* Enables experimental support for ES7 decorators. */
     // "emitDecoratorMetadata": true,         /* Enables experimental support for emitting type metadata for decorators. */
   },
-  "include": ["node-swc/src/"],
-  "exclude": ["*.js"]
-}
+  "include": [
+    "node-swc/src/"
+  ],
+  "exclude": [
+    "*.js"
+  ]
+}