Add export to GasPlugin for exporting its definition to dist/index.d.ts

[Tei1988]

Hello.

When I have written an esbuild configuration in TypeScript, I could not import { GasPlugin } from esbuild-gas-plugin package because of no types exported in dist/index.d.ts.
So I add export keyword to GasPlugin.

In my local machine, it seems to work.

Anyway, thank you for publish this plugin.

[mahaker]

Thanks for using this plugin and contribution!

Does it work if use import GasPlugin from 'esbuild-gas-plugin instead of import { GasPlugin } from 'esbuild-gas-plugin ?

// index.ts
import GasPlugin from 'esbuild-gas-plugin'

console.log(GasPlugin)

> tsc && node dist/index.js

{ GasPlugin: { name: 'gas-plugin', setup: [Function: setup] } }

[mahaker]

my tsconfig.json

{
  "compilerOptions": {
    "target": "es2016",
    "module": "commonjs",
    "rootDir": "./src/",
    "outDir": "./dist/",
    "esModuleInterop": true,
    "forceConsistentCasingInFileNames": true,
    "strict": true,
    "skipLibCheck": true
  }
}

[Tei1988]

Thank you for reply.

Does it work if use import GasPlugin from 'esbuild-gas-plugin instead of import { GasPlugin } from 'esbuild-gas-plugin ?

No, it does not work.

I tried to build using this script below:

import * as esbuild from 'esbuild'
import GasPlugin from 'esbuild-gas-plugin'

esbuild.build({
  entryPoints: ['src/main.ts'],
  bundle: true,
  outfile: 'dist/Code.gs',
  plugins: [GasPlugin]
})

and got this output below:

$ ts-node ./esbuild.ts
/src/node_modules/ts-node/src/index.ts:820
    return new TSError(diagnosticText, diagnosticCodes);
           ^
TSError: ⨯ Unable to compile TypeScript:
esbuild.ts:8:13 - error TS2769: No overload matches this call.
  The last overload gave the following error.
    Type 'typeof import("/src/node_modules/esbuild-gas-plugin/dist/index")' is missing the following properties from type 'Plugin': name, setup

8   plugins: [GasPlugin]
...

This error seems that the type of GasPlugin is missing.

By the way, I found that my change is wrong becasuse of the compiled javascript is not work.
So I will close this PR.

I supposed that using export = { GasPlugin } instead of exports.GasPlugin = GasPlugin will resolve this situation.
Could I send new PR?