Add ability to install globally and execute as command line app

.gitignore

@@ -34,3 +34,4 @@ node_modules
 
 # IDEs
 .idea/
+/ts2dart.iml

README.md

@@ -3,6 +3,11 @@
 ts2dart is a TypeScript to Dart transpiler. It's mainly used to translate Angular 2 from TypeScript
 to Dart for its Dart user base.
 
+## Usage
+
+- To install as Command Line Tool execute: `npm i -g ts2dart`
+- Once installed you could run it doing: `ts2dart inputFile.ts`
+
 ## Installation
 
 - execute `npm i` to install the dependencies,

lib/declaration.ts

@@ -1,7 +1,8 @@
 import * as ts from 'typescript';
+
 import * as base from './base';
-import {Transpiler} from './main';
 import {FacadeConverter} from './facade_converter';
+import {Transpiler} from './main';
 
 export default class DeclarationTranspiler extends base.TranspilerBase {
   constructor(

lib/expression.ts

@@ -1,7 +1,8 @@
 import * as ts from 'typescript';
+
 import * as base from './base';
-import {Transpiler} from './main';
 import {FacadeConverter} from './facade_converter';
+import {Transpiler} from './main';
 
 export default class ExpressionTranspiler extends base.TranspilerBase {
   constructor(tr: Transpiler, private fc: FacadeConverter) { super(tr); }

lib/facade_converter.ts

@@ -1,6 +1,7 @@
-import * as base from './base';
-import * as ts from 'typescript';
 import * as path from 'path';
+import * as ts from 'typescript';
+
+import * as base from './base';
 import {Transpiler} from './main';
 
 type CallHandler = (c: ts.CallExpression, context: ts.Expression) => void;
@@ -384,7 +385,8 @@ export class FacadeConverter extends base.TranspilerBase {
 
   private reportMissingType(n: ts.Node, ident: string) {
     this.reportError(
-        n, `Untyped property access to "${ident}" which could be ` + `a special ts2dart builtin. ` +
+        n, `Untyped property access to "${ident}" which could be ` +
+            `a special ts2dart builtin. ` +
             `Please add type declarations to disambiguate.`);
   }
 

lib/literal.ts

@@ -1,7 +1,8 @@
 import * as ts from 'typescript';
+
 import * as base from './base';
-import {Transpiler} from './main';
 import {FacadeConverter} from './facade_converter';
+import {Transpiler} from './main';
 
 export default class LiteralTranspiler extends base.TranspilerBase {
   constructor(tr: Transpiler, private fc: FacadeConverter) { super(tr); }

lib/main.ts

@@ -1,3 +1,5 @@
+#! /usr/bin/env node
+
 require('source-map-support').install();
 import {SourceMapGenerator} from 'source-map';
 import * as fs from 'fs';
@@ -405,9 +407,37 @@ class Output {
   }
 }
 
+function showHelp() {
+  console.log(`
+Usage: ts2dart [input-files] [arguments]
+
+  --help                            show this dialog
+
+  --failFast                        Fail on the first error, do not collect multiple. Allows easier debugging 
+                                    as stack traces lead directly to the offending line
+
+  --generateLibraryName             Whether to generate 'library a.b.c;' names from relative file paths.
+
+  --generateSourceMap               Whether to generate source maps.
+
+  --tsconfig                        A tsconfig.json to use to configure TypeScript compilation.
+
+  --basePath                        A base path to relativize absolute file paths against. This
+                                    is useful for library name generation (see above) and nicer
+                                    file names in error messages.
+
+  --translateBuiltins               Translate calls to builtins, i.e. seemlessly convert from \` Array\` to \` List\`,
+                                    and convert the corresponding methods. Requires type checking.
+
+  --enforceUnderscoreConventions    Enforce conventions of public/private keyword and underscore prefix
+`);
+  process.exit(0);
+}
+
 // CLI entry point
 if (require.main === module) {
   let args = require('minimist')(process.argv.slice(2), {base: 'string'});
+  if (args.help) showHelp();
   try {
     let transpiler = new Transpiler(args);
     console.error('Transpiling', args._, 'to', args.destination);

lib/module.ts

@@ -1,7 +1,8 @@
 import * as ts from 'typescript';
+
 import * as base from './base';
-import {Transpiler} from './main';
 import {FacadeConverter} from './facade_converter';
+import {Transpiler} from './main';
 
 export default class ModuleTranspiler extends base.TranspilerBase {
   constructor(tr: Transpiler, private fc: FacadeConverter, private generateLibraryName: boolean) {

lib/type.ts

@@ -1,7 +1,8 @@
 import * as ts from 'typescript';
+
 import * as base from './base';
-import {Transpiler} from './main';
 import {FacadeConverter} from './facade_converter';
+import {Transpiler} from './main';
 
 export default class TypeTranspiler extends base.TranspilerBase {
   constructor(tr: Transpiler, private fc: FacadeConverter) { super(tr); }

package.json

@@ -3,6 +3,7 @@
   "version": "0.9.10",
   "description": "Transpile TypeScript code to Dart",
   "main": "build/lib/main.js",
+  "bin": "build/lib/main.js",
   "typings": "build/definitions/main.d.ts",
   "directories": {
     "test": "test"

test/call_test.ts

@@ -1,5 +1,5 @@
 /// <reference path="../typings/mocha/mocha.d.ts"/>
-import {expectTranslate, expectErroneousCode} from './test_support';
+import {expectErroneousCode, expectTranslate} from './test_support';
 
 describe('calls', () => {
   it('translates destructuring parameters', () => {

test/declaration_test.ts

@@ -1,5 +1,5 @@
 /// <reference path="../typings/mocha/mocha.d.ts"/>
-import {expectTranslate, expectErroneousCode} from './test_support';
+import {expectErroneousCode, expectTranslate} from './test_support';
 
 describe('variables', () => {
   it('should print variable declaration with initializer',

test/decorator_test.ts

@@ -1,5 +1,5 @@
 /// <reference path="../typings/mocha/mocha.d.ts"/>
-import {expectTranslate, expectErroneousCode} from './test_support';
+import {expectErroneousCode, expectTranslate} from './test_support';
 
 describe('decorators', () => {
   it('translates plain decorators', () => {

test/e2e/pubspec.yaml

@@ -2,4 +2,4 @@ name: e2e
 description: Transpiled end-to-end tests for ts2dart.
 
 dependencies:
-  test: 0.12.13
+  test: 0.12.15+3

test/expression_test.ts

@@ -1,5 +1,5 @@
 /// <reference path="../typings/mocha/mocha.d.ts"/>
-import {expectTranslate, expectErroneousCode} from './test_support';
+import {expectErroneousCode, expectTranslate} from './test_support';
 
 function expectTranslates(cases: any) {
   for (let tsCode of Object.keys(cases)) {

test/facade_converter_test.ts

@@ -1,5 +1,6 @@
 /// <reference path="../typings/mocha/mocha.d.ts"/>
-import {expectTranslate, FAKE_MAIN, translateSource} from './test_support';
+import {FAKE_MAIN, expectTranslate, translateSource} from './test_support';
+
 import chai = require('chai');
 
 function getSources(str: string): {[k: string]: string} {

test/function_test.ts

@@ -1,5 +1,5 @@
 /// <reference path="../typings/mocha/mocha.d.ts"/>
-import {expectTranslate, expectErroneousCode} from './test_support';
+import {expectErroneousCode, expectTranslate} from './test_support';
 
 describe('functions', () => {
   it('supports declarations', () => { expectTranslate('function x() {}').to.equal('x() {}'); });

test/literal_test.ts

@@ -1,5 +1,5 @@
 /// <reference path="../typings/mocha/mocha.d.ts"/>
-import {expectTranslate, expectErroneousCode} from './test_support';
+import {expectErroneousCode, expectTranslate} from './test_support';
 
 describe('literals', () => {
   it('translates string literals', () => {