refactor: add more linting rules

This include a custom rule that enforces that imports are next to each others (grouped).

Author: hansl

package.json

@@ -17,7 +17,7 @@
  "build": "npm run admin -- build",
  "build-tsc": "tsc -p tsconfig.json",
  "fix": "npm run lint -- --fix",
- "lint": "tslint --config tslint.json --project tsconfig.json --type-check",
+ "lint": "tsc -p rules/tsconfig.json && tslint --config tslint.json --project tsconfig.json --type-check",
  "test": "node ./bin/devkit-admin test",
  "validate-commits": "./bin/devkit-admin validate-commits",
  "integration": "npm run build && npm run integration:build-optimizer",

packages/_/schematics_cli/src/cli.ts

@@ -22,7 +22,6 @@ import {
 import {SchemaClassFactory} from '@ngtools/json-schema';
 import * as minimist from 'minimist';
 import {Observable} from 'rxjs/Observable';
-
 import 'rxjs/add/operator/ignoreElements';
 
 

packages/angular_devkit/core/src/logger/cli-logger.ts

@@ -5,13 +5,11 @@
  * Use of this source code is governed by an MIT-style license that can be
  * found in the LICENSE file at https://angular.io/license
  */
+import 'rxjs/add/operator/filter';
+import {bold, dim, red, white, yellow} from '../terminal';
 import {IndentLogger} from './indent';
 import {LogEntry, Logger} from './logger';
 
-import {bold, dim, red, white, yellow} from '../terminal';
-
-import 'rxjs/add/operator/filter';
-
 
 /**
  * A Logger that sends information to STDOUT and STDERR.

packages/angular_devkit/core/src/logger/indent.ts

@@ -5,9 +5,8 @@
  * Use of this source code is governed by an MIT-style license that can be
  * found in the LICENSE file at https://angular.io/license
  */
-import {Logger} from './logger';
-
 import 'rxjs/add/operator/map';
+import {Logger} from './logger';
 
 
 /**

packages/angular_devkit/core/src/logger/logger.ts

@@ -5,13 +5,12 @@
  * Use of this source code is governed by an MIT-style license that can be
  * found in the LICENSE file at https://angular.io/license
  */
-import {JsonObject} from '../json/interface';
-
 import {Observable} from 'rxjs/Observable';
 import {PartialObserver} from 'rxjs/Observer';
 import {Operator} from 'rxjs/Operator';
 import {Subject} from 'rxjs/Subject';
 import {Subscription} from 'rxjs/Subscription';
+import {JsonObject} from '../json/interface';
 
 
 export interface LoggerMetadata extends JsonObject {

packages/angular_devkit/core/src/logger/null-logger.ts

@@ -5,11 +5,9 @@
  * Use of this source code is governed by an MIT-style license that can be
  * found in the LICENSE file at https://angular.io/license
  */
-import {Logger} from './logger';
-
 import {Observable} from 'rxjs/Observable';
-
 import 'rxjs/add/observable/empty';
+import {Logger} from './logger';
 
 
 export class NullLogger extends Logger {

packages/angular_devkit/core/src/logger/transform-logger.ts

@@ -6,7 +6,6 @@
  * found in the LICENSE file at https://angular.io/license
  */
 import {Observable} from 'rxjs/Observable';
-
 import {LogEntry, Logger} from './logger';
 
 

packages/angular_devkit/schematics/src/engine/engine.ts

@@ -5,6 +5,8 @@
  * Use of this source code is governed by an MIT-style license that can be
  * found in the LICENSE file at https://angular.io/license
  */
+import 'rxjs/add/operator/map';
+import {Url} from 'url';
 import {BaseException} from '../exception/exception';
 import {MergeStrategy} from '../tree/interface';
 import {NullTree} from '../tree/null';
@@ -19,9 +21,6 @@ import {
 } from './interface';
 import {SchematicImpl} from './schematic';
 
-import 'rxjs/add/operator/map';
-import {Url} from 'url';
-
 
 export class UnknownUrlSourceProtocol extends BaseException {
  constructor(url: string) { super(`Unknown Protocol on url "${url}".`); }

packages/angular_devkit/schematics/src/engine/interface.ts

@@ -5,10 +5,9 @@
  * Use of this source code is governed by an MIT-style license that can be
  * found in the LICENSE file at https://angular.io/license
  */
-import {FileEntry, MergeStrategy, Tree} from '../tree/interface';
-
 import {Observable} from 'rxjs/Observable';
 import {Url} from 'url';
+import {FileEntry, MergeStrategy, Tree} from '../tree/interface';
 
 
 /**

packages/angular_devkit/schematics/src/rules/base_spec.ts

@@ -5,15 +5,14 @@
  * Use of this source code is governed by an MIT-style license that can be
  * found in the LICENSE file at https://angular.io/license
  */
+import {Observable} from 'rxjs/Observable';
+import 'rxjs/add/operator/toPromise';
 import {Rule, SchematicContext, Source} from '../engine/interface';
 import {Tree} from '../tree/interface';
 import {empty} from '../tree/static';
 import {apply, chain} from './base';
 import {callRule, callSource} from './call';
 
-import {Observable} from 'rxjs/Observable';
-import 'rxjs/add/operator/toPromise';
-
 
 const context: SchematicContext = null !;