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Enable --fast CLI flag for transpile mode only #130

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merged 1 commit into from
Jun 11, 2016
Merged

Enable --fast CLI flag for transpile mode only #130

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1 change: 1 addition & 0 deletions README.md
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Original file line number Diff line number Diff line change
Expand Up @@ -82,6 +82,7 @@ ts-node --compiler ntypescript --project src --ignoreWarnings 2304 hello-world.t
* **--ignoreWarnings, -i** Set an array of TypeScript diagnostic codes to ignore (also `process.env.TS_NODE_IGNORE_WARNINGS`)
* **--disableWarnings, -d** Ignore all TypeScript errors (also `process.env.TS_NODE_DISABLE_WARNINGS`)
* **--compilerOptions, -o** Set compiler options using JSON (E.g. `--compilerOptions '{"target":"es6"}'`) (also `process.env.TS_NODE_COMPILER_OPTIONS`)
* **--fast, -f** Use TypeScript's `transpileModule` mode (no type checking, but faster compilation) (also `process.env.TS_NODE_FAST`)

### Programmatic Usage

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20 changes: 18 additions & 2 deletions src/bin.ts
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Expand Up @@ -8,11 +8,12 @@ import minimist = require('minimist')
import chalk = require('chalk')
import { diffLines } from 'diff'
import { createScript } from 'vm'
import { register, VERSION, getFile, getVersion, TSError } from './index'
import { register, VERSION, getFile, getVersion, getFileExists, TSError } from './index'

interface Argv {
eval?: string
print?: string
fast?: boolean
version?: boolean
help?: boolean
compiler?: string
Expand All @@ -25,10 +26,11 @@ interface Argv {
}

const strings = ['eval', 'print', 'compiler', 'project', 'ignoreWarnings']
const booleans = ['help', 'version', 'disableWarnings', 'noProject']
const booleans = ['help', 'fast', 'version', 'disableWarnings', 'noProject']

const aliases: { [key: string]: string[] } = {
help: ['h'],
fast: ['f'],
version: ['v'],
eval: ['e'],
print: ['p'],
Expand All @@ -45,6 +47,11 @@ let stop = process.argv.length
function isFlagOnly (arg: string) {
const name = arg.replace(/^--?/, '')

// The value is part of this argument.
if (/=/.test(name)) {
return true
}

for (const bool of booleans) {
if (name === bool) {
return true
Expand Down Expand Up @@ -139,6 +146,8 @@ const isPrinted = argv.print != null
const service = register({
getFile: isEval ? getFileEval : getFile,
getVersion: isEval ? getVersionEval : getVersion,
getFileExists: isEval ? getFileExistsEval : getFileExists,
fast: argv.fast,
compiler: argv.compiler,
ignoreWarnings: list(argv.ignoreWarnings),
project: argv.project,
Expand Down Expand Up @@ -360,3 +369,10 @@ function getFileEval (fileName: string) {
function getVersionEval (fileName: string) {
return fileName === EVAL_PATH ? String(evalFile.version) : getVersion(fileName)
}

/**
* Get whether the file exists.
*/
function getFileExistsEval (fileName: string) {
return fileName === EVAL_PATH ? true : getFileExists(fileName)
}
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