chore(build): Produce .d.ts files for build tools

Closes angular#7763

Author: chuckjaz

gulpfile.js

@@ -1093,25 +1093,26 @@ gulp.task('!build.tools', function() {
  .pipe(tsc({
  target: 'ES5',
  module: 'commonjs',
+ declaration: true,
  // Don't use the version of typescript that gulp-typescript depends on
  // see https://github.com/ivogabe/gulp-typescript#typescript-version
  typescript: require('typescript')
- }))
-  .on('error',
-  function(error) {
-  // nodejs doesn't propagate errors from the src stream into the final
-  // stream so we are
-  // forwarding the error into the final stream
-  stream.emit('error', error);
-  })
-  .pipe(sourcemaps.write('.'))
-  .pipe(gulp.dest('dist/tools'))
-  .on('end', function() {
-  var AngularBuilder =
-   require('./dist/tools/broccoli/angular_builder').AngularBuilder;
-  angularBuilder =
-  new AngularBuilder({outputPath: 'dist', dartSDK: DART_SDK, logs: logs});
-  });
+ }));
+ stream =
+ merge2([stream.js.pipe(gulp.dest('dist/tools')), stream.dts.pipe(gulp.dest('dist/tools'))])
+ .on('error',
+ function(error) {
+ // nodejs doesn't propagate errors from the src stream into the final
+ // stream so we are
+ // forwarding the error into the final stream
+ stream.emit('error', error);
+ })
+ .pipe(sourcemaps.write('.'))
+ .on('end', function() {
+ var AngularBuilder = require('./dist/tools/broccoli/angular_builder').AngularBuilder;
+ angularBuilder =
+ new AngularBuilder({outputPath: 'dist', dartSDK: DART_SDK, logs: logs});
+ });
 
  return stream;
 });

tools/broccoli/angular_builder.ts

@@ -6,17 +6,16 @@ var path = require('path');
 var printSlowTrees = require('broccoli-slow-trees');
 var Q = require('q');
 
-type ProjectMap = {
+export type ProjectMap = {
  [key: string]: boolean
 };
 
-type Options = {
+export type Options = {
  projects: ProjectMap;
-noTypeChecks: boolean;
-generateEs6: boolean;
-useBundles: boolean;
-}
-;
+ noTypeChecks: boolean;
+ generateEs6: boolean;
+ useBundles: boolean;
+};
 
 /**
  * BroccoliBuilder facade for all of our build pipelines.

tools/broccoli/broccoli-lodash.ts

@@ -4,7 +4,7 @@ import path = require('path');
 var _ = require('lodash');
 import {wrapDiffingPlugin, DiffingBroccoliPlugin, DiffResult} from './diffing-broccoli-plugin';
 
-interface LodashRendererOptions {
+export interface LodashRendererOptions {
  encoding?: string;
  context?: any;
  // files option unsupported --- use Funnel on inputTree instead.

tools/broccoli/broccoli-merge-trees.ts

@@ -6,9 +6,7 @@ import {wrapDiffingPlugin, DiffingBroccoliPlugin, DiffResult} from './diffing-br
 
 var isWindows = process.platform === 'win32';
 
-interface MergeTreesOptions {
- overwrite?: boolean;
-}
+export interface MergeTreesOptions { overwrite?: boolean; }
 
 function outputFileSync(sourcePath, destPath) {
  let dirname = path.dirname(destPath);

tools/broccoli/broccoli-tree-stabilizer.ts

@@ -40,6 +40,6 @@ class TreeStabilizer implements BroccoliTree {
 }
 
 
-export default function stabilizeTree(inputTree) {
+export default function stabilizeTree(inputTree): BroccoliTree {
  return new TreeStabilizer(inputTree);
 }

tools/broccoli/diffing-broccoli-plugin.ts

@@ -33,7 +33,7 @@ export interface DiffingBroccoliPlugin {
 }
 
 
-type DiffingPluginWrapperFactory = (inputTrees: (BroccoliTree | BroccoliTree[]), options?) =>
+export type DiffingPluginWrapperFactory = (inputTrees: (BroccoliTree | BroccoliTree[]), options?) =>
  BroccoliTree;