fix(core): update

ts/index.ts

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+export * from './tswatch.classes.tswatch';
+
+import './tswatch.cli';

ts/tswatch.classes.tswatch.ts

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+import * as plugins from './tswatch.plugins';
+
+/**
+ * handles the management of watching for foes
+ */
+export class TsWatch {
+  private smartshellInstance = new plugins.smartshell.Smartshell({
+    executor: 'bash'
+  });
+  private currentExecution: plugins.smartshell.IExecResultStreaming;
+  private watcher = plugins.fileWatcher();
+  private filePathToWatch: string;
+  private commandToExecute: string;
+
+  constructor(optionsArg: {
+    filePathToWatch: string,
+    commandToExecute: string
+  }) {
+    this.filePathToWatch = optionsArg.filePathToWatch;
+    this.commandToExecute = optionsArg.commandToExecute;
+  }
+
+  /**
+   * start the file
+   */
+  public async start() {
+    this.setupCleanup();
+    console.log(`Looking at ${this.filePathToWatch} for changes`);
+    this.watcher.add(this.filePathToWatch); // __dirname refers to the directory of this very file
+    this.watcher.on('change', async (file, stat) => {
+      console.log('Noticed change!');
+      if (!stat) {
+        console.log('deleted');
+      }
+      this.updateCurrentExecution();
+    });
+    this.updateCurrentExecution();
+  }
+
+  private async updateCurrentExecution() {
+    if (this.currentExecution) {
+      process.kill(-this.currentExecution.childProcess.pid);
+    }
+    this.currentExecution = await this.smartshellInstance.execStreaming(this.commandToExecute);
+    this.currentExecution = null;
+  }
+
+  /**
+   * this method sets up a clean exit strategy
+   */
+  private setupCleanup() {
+    const cleanup = () => {
+      if (this.currentExecution) {
+        process.kill(-this.currentExecution.childProcess.pid);
+      }
+    };
+    process.on('exit', () => {
+      console.log('');
+      console.log('now exiting!');
+      cleanup();
+      process.exit(0);
+    });
+    process.on('SIGINT', () => {
+      console.log('');
+      console.log('ok! got SIGINT We are exiting! Just cleaning up to exit neatly :)');
+      cleanup();
+      process.exit(0);
+    });
+  }
+}

ts/tswatch.cli.ts

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+import * as plugins from './tswatch.plugins';
+import * as paths from './tswatch.paths';
+
+import { TsWatch } from './tswatch.classes.tswatch';
+
+const tswatchCli = new plugins.smartcli.Smartcli();
+
+tswatchCli.addCommand('test').subscribe(argvArg => {
+  const tsWatch = new TsWatch({
+    filePathToWatch: paths.cwd,
+    commandToExecute: 'npm run test2'
+  });
+  tsWatch.start();
+});
+
+tswatchCli.startParse();

ts/tswatch.paths.ts

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+import * as plugins from './tswatch.plugins';
+
+export const cwd = process.cwd();

ts/tswatch.plugins.ts

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+import * as path from 'path';
+export { path };
+
+// @pushrocks scope
+import * as smartcli from '@pushrocks/smartcli';
+import * as smartshell from '@pushrocks/smartshell';
+
+export { smartshell, smartcli };
+
+// Third Pary
+import * as fileWatcher from 'filewatcher';
+
+export { fileWatcher };