package: add rollup

restructure project

Author: veghdev

.gitignore

@@ -1,3 +1,4 @@
 node_modules
+package-lock.json
 
-package-lock.json
+dist

package.json

@@ -2,14 +2,15 @@
   "name": "write-npmstat",
   "version": "0.1.0",
   "description": "write-npmstat makes it easy to collect, filter and save npm statistics to csv files.",
-  "main": "writenpmstat.js",
+  "main": "dist/index.min.js",
   "scripts": {
     "test": "echo \"Error: no test specified\" && exit 1",
-    "check-prettier": "prettier -c ./*js",
-    "prettier": "prettier -w ./*js",
-    "check-eslint": "eslint ./*js",
-    "eslint": "eslint --fix ./*js",
+    "prettier": "prettier -w ./*js ./src/*js",
+    "eslint": "eslint --fix ./*js ./src/*js",
     "format": "npm-run-all prettier eslint",
+    "rollup": "rollup -c",
+    "check-prettier": "prettier -c ./*js ./src/*js",
+    "check-eslint": "eslint ./*js ./src/*js",
     "check": "npm-run-all check-prettier check-eslint"
   },
   "repository": {
@@ -32,13 +33,17 @@
     "enum": "^3.0.0"
   },
   "devDependencies": {
-    "npm-run-all": "^4.1.0",
-    "prettier": "^2.6.0",
+    "npm-run-all": "^4.1.5",
+    "prettier": "^2.6.2",
     "eslint": "^8.14.0",
     "eslint-config-standard": "^17.0.0",
     "eslint-config-prettier": "^8.5.0",
     "eslint-plugin-import": "^2.26.0",
     "eslint-plugin-n": "^15.2.0",
-    "eslint-plugin-promise": "^6.0.0"
+    "eslint-plugin-promise": "^6.0.0",
+    "rollup": "^2.70.2",
+    "@rollup/plugin-commonjs": "^22.0.0",
+    "rollup-plugin-auto-external": "^2.0.0",
+    "rollup-plugin-terser": "^7.0.2"
   }
 }

rollup.config.js

@@ -0,0 +1,17 @@
+import commonjs from "@rollup/plugin-commonjs";
+import autoExternal from "rollup-plugin-auto-external";
+import { terser } from "rollup-plugin-terser";
+
+const path = require("path");
+
+export default [
+    {
+        input: path.resolve(__dirname, "./src/writenpmstat.js"),
+        output: {
+            file: path.resolve(__dirname, "./dist/index.min.js"),
+            format: "cjs",
+            exports: "named",
+        },
+        plugins: [commonjs(), autoExternal(), terser()],
+    },
+];