Detect missing tsconfig.json and scaffold the basics.

[Raynos]

If this command is run in a directory which does not have a tsconfig.json and generate the default one.

{
  "extends": "@tsconfig/node12/tsconfig.json",
  "include": ["src/**/*"],
  "exclude": ["node_modules", "**/*.spec.ts"]
}

[Raynos]

The way this would look today actually would be to detect no tsconfig.json or jsconfig.json and to scaffold the correct files.

• Copy _types/base-tsconfig.json into the current workding dir ( https://github.com/optoolco/fake-aws/blob/master/_types/base-tsconfig.json )
• Drop a jsconfig.json ( https://github.com/optoolco/fake-aws/blob/master/jsconfig.json ).

For the jsconfig the following should be an ok starting point

{
  "extends": "./_types/base-tsconfig.json",
  "compilerOptions": {
    "baseUrl": "./",
    "paths": {
      "*" : ["./_types/*"]
    }
  },
  "include": [
    "*.js",
    "test/*.js",
    "_types/**/*.d.ts"
  ]
}