Use gtm verify, update to gtm version 1.2.1 (#11)

* Use gtm verify, update to gtm version 1.2.1

* Check if result code is less than zero instead of equal to

* Update constraint to >= to version

package.json

@@ -2,7 +2,7 @@
     "name": "vscode-gtm",
     "displayName": "vscode-gtm",
     "description": "VSCode plugin to support Git Time Metrics",
-    "version": "0.1.1",
+    "version": "0.1.2",
     "publisher": "s3ramsay",
     "license": "MIT",
     "engines": {
@@ -32,4 +32,4 @@
         "typescript": "^1.8.5",
         "vscode": "^0.11.0"
     }
-}
+}

src/extension.ts

@@ -21,13 +21,12 @@ function run_cmd(cmd: string, args: string[]): Promise<Result> {
     child.on('close', (code: number) => resolve(<Result>{ code, output }));
   });
 }
-
 export function activate(context: vscode.ExtensionContext) {
   // check if gtm is installed + available
-  run_cmd('gtm', ['-v'])
+  run_cmd('gtm', ['verify', '>= 1.2.1'])
     .then((res: Result) => {
-      if(res.output < 'v1.0.0'){
-         vscode.window.showWarningMessage('Installed gtm version is below v1.0.0. Please update your gtm installation.');
+      if(res.output != 'true'){
+         vscode.window.showWarningMessage('Installed gtm version is below v1.2.1. Please update your gtm installation.');
        }
     }, (res: Result) => {
       if (res.code < 0) {