Exposes typescript compiler (tsc) as a node.js module

Allows you to invoke tsc from a node program.

This work trivially by spawning tsc from the sibling node_modules/typescript module.

node-typescript-compiler requires the typescript module as a sibling, not included so you can choose version. (though node-typescript-compiler will intelligently try to locate global typescript if it can't be found as a sibling. but this is not recommended)

npm i --save-dev typescript
npm i --save-dev node-typescript-compiler

The module exposes a unique function, compile({options}, [files]), files being an optional array, and options a hashmap of tsc options

Example invocations:

• Compile current project:

const tsc = require('node-typescript-compiler')
tsc.compile({
	'project': '.'
})
.then(...)

--> Will spawn tsc --project .

• Compile current project with some options overridden:

const tsc = require('node-typescript-compiler')
const tsconfig = { json: require('../tsconfig.json') }

tsc.compile(
	Object.assign({}, tsconfig.json.compilerOptions, {
		'declaration': false,
		'outDir': 'dist/es6.amd',
		'module': 'amd'
	}),
	tsconfig.json.files,
)

--> Will spawn tsc <... non-overriden tsconfig options> --outDir dist/es6.amd --module amd (boolean "false" values cause the corresponding option to not be added, this is the intended behaviour)

• Get help:

const tsc = require('node-typescript-compiler')

return tsc.compile({
	'help': true
})

--> Will spawn tsc --help (boolean "true" values are not needed thus don't appear, option presence is enough)

It seems we could do that more elegantly and at a lower level by directly calling tsc code, as explained here: https://basarat.gitbooks.io/typescript/content/docs/compiler/overview.html

However, that would take a lot of time and effort, and I'm afraid of API changes. So no.

https://www.npmjs.com/package/ntypescript but they have poor doc and don't allow choosing the typescript version (ex. using the unstable "next")

TODO

• option as array
• newline filtering
• reset screen on watch