module-specifier-resolver

This tool transforms module specifier of TypeScript source code when it contains.
Because ECMAScript Modules(ESM) system doesn’t allow to abbreviate file extension, so this tool aim to follows the system.

tools

Please install Deno.

transform examples

export { foo } from "./foo"
// transform to
export { foo } from "./foo.(ts|tsx|d.ts)"

import { bar } from "./bar"
// transform to
import { bar } from "./bar.(ts|tsx|d.ts)"

limitation

• Can’t resolve paths alias of TypeScript compiler options.
• Can’t resolve import() syntax, commonly called dynamic import.
• Can’t keep single quatation or duble quatation and semicolon of original source code.
• Plase be careful if your code have the text \n/*_PRESERVE_NEWLINE_| which will be replace newline, because of that keeps original newline before tsc compiler optimize it.

command

remote

• dry run
  • deno run --unstable --allow-env --allow-read https://deno.land/x/module_specifier_resolver@v1.0.7/bin.ts -b=./src -c=./tsconfig.json -d
• transform
  • deno run --unstable --allow-env --allow-read --allow-write https://deno.land/x/module_specifier_resolver@v1.0.7/bin.ts -b=./src -c=./tsconfig.json -r

local

• deno task run-dry
• deno task run

arguments

tips

After you ran bin.ts, you should run npx tsc --noEmit due to check correctness of transformation by this tool.

• tsconfig.json example

  {
    "compilerOptions": {
      "moduleResolution": "nodenext",
      "allowImportingTsExtensions": true,
      "noEmit": true
    }
  }

License

• MIT license (LICENSE-MIT or http://opensource.org/licenses/MIT)