Add CommonJS exports

package.json

@@ -18,33 +18,33 @@
     "vite-plugin"
   ],
   "type": "module",
-  "main": "./dist/index.js",
+  "main": "./dist/index.cjs",
   "module": "./dist/index.js",
   "types": "./dist/index.d.ts",
   "exports": {
     ".": {
+      "require": "./dist/index.cjs",
       "import": "./dist/index.js",
       "types": "./dist/index.d.ts"
     }
   },
   "scripts": {
-    "build": "tsc",
+    "build": "vite build && tsc",
     "test": "vite build -c test/vite.config.ts"
   },
   "packageManager": "[email protected]",
   "devDependencies": {
     "@rollup/plugin-node-resolve": "^13.3.0",
     "@types/node": "^18.7.13",
-    "add": "^2.0.6",
     "typescript": "^4.8.2",
     "vite": "^3.0.9",
     "vite-plugin-inspect": "^0.6.0",
     "yarn": "^1.22.19"
   },
+  "peerDependencies": {
+    "vite": "^2.0.0 || ^3.0.0"
+  },
   "publishConfig": {
     "access": "public"
-  },
-  "dependencies": {
-    "chalk": "^5.0.1"
   }
 }

src/index.ts

@@ -31,64 +31,66 @@ export const externalizeDeps = (options: Partial<UserOptions> = {}): Plugin => {
   return {
     name: 'vite-plugin-externalize-deps',
     config: (_config, _env) => {
-      if (existsSync(optionsResolved.useFile)) {
-        const externalDeps = new Set<RegExp>()
-        const {
-          dependencies = {},
-          devDependencies = {},
-          optionalDependencies = {},
-          peerDependencies = {},
-        } = parseFile(optionsResolved.useFile)
-
-        if (optionsResolved.deps) {
-          Object.keys(dependencies).forEach((dep) => {
-            const depMatcher = new RegExp(`^${dep}(?:/.+)?$`)
-
-            externalDeps.add(depMatcher)
-          })
-        }
-
-        if (optionsResolved.devDeps) {
-          Object.keys(devDependencies).forEach((dep) => {
-            const depMatcher = new RegExp(`^${dep}(?:/.+)?$`)
-
-            externalDeps.add(depMatcher)
-          })
-        }
-
-        if (optionsResolved.nodeBuiltins) {
-          builtinModules.forEach((builtinModule) => {
-            const builtinMatcher = new RegExp(`^(?:node:)?${builtinModule}$`)
-
-            externalDeps.add(builtinMatcher)
-          })
-        }
-
-        if (optionsResolved.optionalDeps) {
-          Object.keys(optionalDependencies).forEach((dep) => {
-            const depMatcher = new RegExp(`^${dep}(?:/.+)?$`)
-
-            externalDeps.add(depMatcher)
-          })
-        }
-
-        if (optionsResolved.peerDeps) {
-          Object.keys(peerDependencies).forEach((dep) => {
-            const depMatcher = new RegExp(`^${dep}(?:/.+)?$`)
-
-            externalDeps.add(depMatcher)
-          })
-        }
-
-        return {
-          build: {
-            rollupOptions: {
-              external: [
-                ...externalDeps.values(),
-              ],
-            },
+      if (!existsSync(optionsResolved.useFile)) {
+        throw new Error(`[vite-plugin-externalize-deps] The file specified for useFile (${optionsResolved.useFile}) does not exist.`)
+      }
+
+      const externalDeps = new Set<RegExp>()
+      const {
+        dependencies = {},
+        devDependencies = {},
+        optionalDependencies = {},
+        peerDependencies = {},
+      } = parseFile(optionsResolved.useFile)
+
+      if (optionsResolved.deps) {
+        Object.keys(dependencies).forEach((dep) => {
+          const depMatcher = new RegExp(`^${dep}(?:/.+)?$`)
+
+          externalDeps.add(depMatcher)
+        })
+      }
+
+      if (optionsResolved.devDeps) {
+        Object.keys(devDependencies).forEach((dep) => {
+          const depMatcher = new RegExp(`^${dep}(?:/.+)?$`)
+
+          externalDeps.add(depMatcher)
+        })
+      }
+
+      if (optionsResolved.nodeBuiltins) {
+        builtinModules.forEach((builtinModule) => {
+          const builtinMatcher = new RegExp(`^(?:node:)?${builtinModule}$`)
+
+          externalDeps.add(builtinMatcher)
+        })
+      }
+
+      if (optionsResolved.optionalDeps) {
+        Object.keys(optionalDependencies).forEach((dep) => {
+          const depMatcher = new RegExp(`^${dep}(?:/.+)?$`)
+
+          externalDeps.add(depMatcher)
+        })
+      }
+
+      if (optionsResolved.peerDeps) {
+        Object.keys(peerDependencies).forEach((dep) => {
+          const depMatcher = new RegExp(`^${dep}(?:/.+)?$`)
+
+          externalDeps.add(depMatcher)
+        })
+      }
+
+      return {
+        build: {
+          rollupOptions: {
+            external: [
+              ...externalDeps.values(),
+            ],
           },
-        }
+        },
       }
     },
   }

tsconfig.json

@@ -2,10 +2,11 @@
   "compilerOptions": {
     "alwaysStrict": true,
     "declaration": true,
+    "emitDeclarationOnly": true,
     "esModuleInterop": true,
     "module": "ESNext",
     "moduleResolution": "Node",
-    "noImplicitReturns": false,
+    "noImplicitReturns": true,
     "noUnusedLocals": true,
     "noUnusedParameters": true,
     "outDir": "./dist",

vite.config.ts

@@ -0,0 +1,34 @@
+import { defineConfig } from 'vite'
+import { externalizeDeps } from 'vite-plugin-externalize-deps'
+
+// https://vitejs.dev/config/
+export default defineConfig({
+  build: {
+    lib: {
+      entry: './src/index.ts',
+      fileName: 'index',
+      formats: [],
+    },
+    rollupOptions: {
+      external: [/^node:.*$/],
+      output: [
+        {
+          esModule: true,
+          exports: 'named',
+          format: 'es',
+        },
+        {
+          exports: 'named',
+          format: 'cjs',
+          inlineDynamicImports: true,
+          interop: 'auto',
+        },
+      ],
+    },
+    sourcemap: true,
+    target: 'esnext',
+  },
+  plugins: [
+    externalizeDeps(),
+  ],
+})

yarn.lock

@@ -5,20 +5,6 @@ __metadata:
   version: 6
   cacheKey: 8
 
-"#ansi-styles@npm:[email protected]":
-  version: 6.1.0
-  resolution: "ansi-styles@npm:6.1.0"
-  checksum: 7a7f8528c07a9d20c3a92bccd2b6bc3bb4d26e5cb775c02826921477377bd495d615d61f710d56216344b6238d1d11ef2b0348e146c5b128715578bfb3217229
-  languageName: node
-  linkType: hard
-
-"#supports-color@npm:[email protected]":
-  version: 9.2.2
-  resolution: "supports-color@npm:9.2.2"
-  checksum: 976d84877402fc38c1d43b1fde20b0a8dc0283273f21cfebe4ff7507d27543cdfbeec7db108a96b82d694465f06d64e8577562b05d0520b41710088e0a33cc50
-  languageName: node
-  linkType: hard
-
 "@esbuild/linux-loong64@npm:0.14.54":
   version: 0.14.54
   resolution: "@esbuild/linux-loong64@npm:0.14.54"
@@ -136,13 +122,6 @@ __metadata:
   languageName: node
   linkType: hard
 
-"add@npm:^2.0.6":
-  version: 2.0.6
-  resolution: "add@npm:2.0.6"
-  checksum: e2d23d40494565dfed4acd65e478570c444db5ac6c053551ed429c39ea0f2c99d83df63e7befec936df601827d2254d06a2fb6f7dcfd2022e810b25eab818b8c
-  languageName: node
-  linkType: hard
-
 "agent-base@npm:6, agent-base@npm:^6.0.2":
   version: 6.0.2
   resolution: "agent-base@npm:6.0.2"
@@ -256,13 +235,6 @@ __metadata:
   languageName: node
   linkType: hard
 
-"chalk@npm:^5.0.1":
-  version: 5.0.1
-  resolution: "chalk@npm:5.0.1"
-  checksum: 7b45300372b908f0471fbf7389ce2f5de8d85bb949026fd51a1b95b10d0ed32c7ed5aab36dd5e9d2bf3191867909b4404cef75c5f4d2d1daeeacd301dd280b76
-  languageName: node
-  linkType: hard
-
 "chownr@npm:^2.0.0":
   version: 2.0.0
   resolution: "chownr@npm:2.0.0"
@@ -1412,12 +1384,12 @@ __metadata:
   dependencies:
     "@rollup/plugin-node-resolve": ^13.3.0
     "@types/node": ^18.7.13
-    add: ^2.0.6
-    chalk: ^5.0.1
     typescript: ^4.8.2
     vite: ^3.0.9
     vite-plugin-inspect: ^0.6.0
     yarn: ^1.22.19
+  peerDependencies:
+    vite: ^2.0.0 || ^3.0.0
   languageName: unknown
   linkType: soft