Promisify spawn

src/utils/clone.ts

@@ -1,5 +1,6 @@
 import GitlyOptions from '../interfaces/options'
 import { getArchivePath } from './archive'
+import { GitlyCloneError } from './error'
 import execute from './execute'
 import exists from './exists'
 import { isOffline } from './offline'
@@ -20,8 +21,19 @@ export default async function clone(
 
   const local = async () => exists(path)
   const remote = async () => {
-    const result = spawn.sync('git', ['clone', info.href, path])
-    return result.status === 0
+    // Use the git command to clone the repository
+    // but promisify cross-spawn to handle the output
+    return new Promise<string>((resolve, reject) => {
+      const child = spawn('git', ['clone', info.href, path])
+
+      child.on('close', (code) => {
+        if (code === 0) {
+          resolve(path)
+        } else {
+          reject(new GitlyCloneError('Failed to clone the repository'))
+        }
+      })
+    })
   }