How to code this repo from scratch

1. make a folder

2. run: npm init -y

3. run yarn add -D react react-dom typescript @types/react

4. run npx tsc --init to generate tsconfig.json

   • add the following to tsconfig.json:

       "jsx": "react",
       "module": "ESNext",
       "declaration": true,
       "declarationDir": "types",
       "sourceMap": true,
       "outDir": "dist",
       "moduleResolution": "node",
       "allowSyntheticDefaultImports": true,
       "emitDeclarationOnly": true

5. Create a component to test at /src/components for eg. a Button component

   • import this Button component into src/components/index.tsx and then export it like: export { default as Button } from "./Button"
   • import components into src/index.ts and then export it like: export * from "./components"

6. Install rollup, run: yarn add -D rollup @rollup/plugin-node-resolve @rollup/plugin-commonjs @rollup/plugin-typescript rollup-plugin-dts rollup-plugin-postcss css-loader tslib

7. Create rollup.config.json in the root with data:

    import resolve from "@rollup/plugin-node-resolve";
    import commonjs from "@rollup/plugin-commonjs";
    import typescript from "@rollup/plugin-typescript";
    import postcss from "rollup-plugin-postcss";
    import dts from "rollup-plugin-dts";

    const packageJson = require("./package.json");

    export default [
        {
            input: "src/index.ts",
            output: [
                {
                    file: packageJson.main,
                    format: "cjs",
                    sourcemap: true,
                },
                {
                    file: packageJson.module,
                    format: "esm",
                    sourcemap: true,
                },
            ],
            plugins: [
                resolve(),
                commonjs(),
                typescript({ tsconfig: "./tsconfig.json" }),
                postcss(),
            ],
        },
        {
            input: "dist/esm/types/index.d.ts",
            output: [{ file: "dist/index.d.ts", format: "esm" }],
            plugins: [dts()],
            external: [/\.(css|less|scss)$/],
        },
    ];

8. add the following to package.json

 "scripts": {
    "rollup": "rollup -c" // "-c" means run rollup with a config file (rollup.config.js)
  },
  "main": "dist/cjs/index.js",
  "module": "dist/esm/index.js",
  "files": ["dist"],
  "types": "dist/index.d.ts"

9. Push all the code to an empty public github repository.

10. Now its time to publish this library to NPM as a package

    • update package.json with:

      "name": "@YOUR_GITHUB_USERNAME/YOUR_GITHUB_REPO_NAME", // eg. "name": "@bhatvikrant/panda-ui",
      "publishConfig": {
           "registry": "https://npm.pkg.github.com/YOUR_REPOSITORY_NAME"
      }

    • run cd ~ && nano .npmrc then paste the following in .npmrc

        registry=https://registry.npmjs.org/
        @YOUR_GITHUB_USERNAME:registry=https://npm.pkg.github.com/
        //npm.pkg.github.com/:_authToken=YOUR_AUTH_TOKEN

11. Add testing using jest & react testing library

    • run: yarn add -D @testing-library/react jest @types/jest
    • create jest.config.js with data:

          
      module.exports = {
          testEnvironment: "jsdom", // jsdom allows you to simulate DOM for testing
          moduleNameMapper: {
              ".(css|less|scss)$": "identity-obj-proxy",
          },
      };

    • add tests for Button component in src/components/Button/index.test.ts
    • install babel so that jsx is compatible with jest @babel/core @babel/preset-env @babel/preset-react @babel/preset-typescript babel-jest babel-loader identity-obj-proxy
    • create babel.config.js with:

    module.exports = {
        presets: [
            "@babel/preset-env",
            "@babel/preset-react",
            "@babel/preset-typescript",
        ],
    };

12. Install storybook

    • run: npx sb init

To create a release, run the following

git tag 0.0.1                                                    
git push origin 0.0.1   

Note: video tutorial at https://www.youtube.com/watch?v=XHQi5a0TmMc&t=58s&ab_channel=AlexEagleson

How to publish to NPM & GPR: https://dev.to/joeattardi/how-to-publish-an-npm-package-to-npm-and-github-package-registry-simultaneously-using-github-actions-213a