Created Log Indicator

package.json

@@ -43,6 +43,7 @@
 		"@types/mocha": "5.2.6",
 		"@types/node": "^11.13.4",
 		"@types/node-fetch": "^2.3.2",
+		"@types/ora": "^3.2.0",
 		"@types/rimraf": "2.0.2",
 		"@types/text-encoding": "0.0.35",
 		"eosjs": "20.0.0",
@@ -54,13 +55,15 @@
 	"dependencies": {
 		"axios": "0.18.0",
 		"chai": "^4.2.0",
+		"colors": "^1.3.3",
 		"commander": "2.20.0",
 		"deep-equal-in-any-order": "^1.0.13",
 		"docker-cli-js": "2.5.2",
 		"glob": "7.1.3",
 		"mkdirp": "0.5.1",
 		"mocha": "6.1.3",
 		"node-fetch": "2.3.0",
+		"ora": "^3.4.0",
 		"qrcode-terminal": "0.12.0",
 		"rimraf": "2.6.3",
 		"ts-mocha": "6.0.0"

src/cli/logIndicator.ts

@@ -0,0 +1,66 @@
+import ora, { Ora } from 'ora';
+import * as colors from 'colors';
+
+/** Holds spinner instances */
+const cache:{ spinner?:Ora } = {};
+
+/** Alters output based on the process being piped */
+const isTTY:boolean = process.env.CI ? false : process.stdout.isTTY!;
+
+/**
+ * Creates a new spinner instance with the specified message
+ * @author Mitch Pierias <github.com/MitchPierias>
+ * @param text Output display message
+ */
+export const create = (text:string) => {
+    // Handle process piping
+    if (!isTTY) {
+        console.log(`lamington - ${text}`);
+        return;
+    }
+    // Cleanup existing spinner
+    if (cache.spinner) {
+        cache.spinner.succeed();
+        delete cache.spinner;
+    }
+    // Create and cache spinner
+    cache.spinner = ora({
+        text,
+        color: 'magenta'
+    }).start();
+}
+
+/**
+ * Terminates the current spinner with the specified output message
+ * @author Mitch Pierias <github.com/MitchPierias>
+ * @param message Output message
+ * @param isError Renders output as error toggle
+ */
+export const end = (message?:string, isError:boolean = false) => {
+    // Handle process piping
+    if (!isTTY) {
+        console.log(`create-react-app - ${message}`);
+        return;
+    }
+    // Handle existing spinner
+    if (cache.spinner) {
+        (isError ? cache.spinner.fail() : cache.spinner.succeed());
+        delete cache.spinner;
+    }
+    // Output closure message
+    if (!message || message == '') return;
+    const prefix = isError ? colors.red('ERROR:') : colors.green('DONE!');
+    console.log(`
+${prefix} ${message}
+`);
+}
+
+/**
+ * Terminates the current spinner as an error with output message
+ * @author Mitch Pierias <github.com/MitchPierias>
+ * @param message Spinner message.
+ */
+export const fail = (message:string) => {
+    end(message, true);
+    process.exit(1);
+}