git api: resolve promise in lineHandler

The api promise will now only be resolved by the end of stdout processing
for git command output handling.  The promise was being resolved early
before the output handlers had run.

Signed-off-by: Chris. Webster <chris@webstech.net>

Author: webstech

lib/git.ts

@@ -107,8 +107,10 @@ export function git(args: string[], options?: IGitOptions | undefined):
                                     }':\nstderr: ${result.stderr
                                     }\nstdout: ${result.stdout}\n`);
             }
-            resolve(!options || options.trimTrailingNewline === false ?
-                    result.stdout : trimTrailingNewline(result.stdout));
+            if (!options?.lineHandler) { // let callback resolve the promise
+                resolve(!options || options.trimTrailingNewline === false ?
+                        result.stdout : trimTrailingNewline(result.stdout));
+            }
         }).catch((reason) => {
             reject(reason);
         });