rollup-plugin-typescript2

Rollup plugin for typescript with compiler errors.

This is a rewrite of original rollup-plugin-typescript, starting and borrowing from this fork.

This version is somewhat slower than original, but it will print out typescript syntactic and semantic diagnostic messages (the main reason for using typescript after all).

Usage

// rollup.config.js
import typescript from 'rollup-plugin-typescript2';

export default {
	entry: './main.ts',

	plugins: [
		typescript()
	]
}

The plugin depends on existence of tsconfig.json file. All compiler options and file lists are loaded from that.

Following compiler options are forced though:

• module: es2015
• noEmitHelpers: true
• importHelpers: true
• noResolve: false

Plugin takes following options:

• check: true

  Set to false to avoid doing any diagnostic checks on the code.

• verbosity: 1

  • 0 -- Error
  • 1 -- Warning
  • 2 -- Info
  • 3 -- Debug

• clean: false

  Set to true for clean build (wipes out cache on every build).

• cacheRoot: ".rts2_cache"

  Path to cache.

• include: [ "*.ts+(|x)", "**/*.ts+(|x)" ]

  By default passes all .ts files through typescript compiler.

• exclude: [ "*.d.ts", "**/*.d.ts" ]

  But excludes type definitions.

• abortOnError: true

  Bail out on first syntactic or semantic error. In some cases setting this to false will result in exception in rollup itself (for example for unresolvable imports).

• rollupCommonJSResolveHack: false

  On windows typescript resolver favors POSIX path, while commonjs plugin (and maybe others?) uses native path as module id. This can result in namedExports being ignored if rollup happened to use typescript's resolution. Set to true to pass resolved module path through resolve() to match up with rollup-plugin-commonjs.

• tsconfigSearchPath: process.cwd()

  By default, the tsconfig search path is the current working directory. Set this to a string to change the search path.

• hostWorkingDirectory: process.cwd()

  By default, the language services host working directory is the current working directory. Set this string to change the language services host working directory.

• compilerOptions: typescript.CompilerOptions

  Override typescript's compiler options. Note that the following options are overridden by this plugin: module, noEmitHelpers, importHelpers, noResolve

Watch mode

The way typescript handles type-only imports and ambient types effectively hides them from rollup watch, because import statements are not generated and changing them doesn't trigger a rebuild.

Otherwise the plugin should work in watch mode. Make sure to run a normal build after watch session to catch any type errors.

Version

This plugin currently requires TypeScript 2.0+.

Rollup version

Tested on rollup 0.41.4.

Reporting bugs

Report any bugs on github: https://github.com/ezolenko/rollup-plugin-typescript2/issues.

Attach your tsconfig.json, package.json (for versions of dependencies), rollup script and anything else that could influence module resolution, ambient types and typescript compilation.

Check if problem is reproducible after running npm prune to clear any rogue types from npm_modules (by default typescript grabs all ambient types).

Check if you get the same problem with clean option set to true (might indicate a bug in the cache).

If makes sense, check if running tsc directly produces similar results.

Attach plugin output with verbosity option set to 3 (this will list all files being transpiled and their imports).