Clone repo instead of init + fetch

git_aggregator/repo.py

@@ -192,9 +192,35 @@ def aggregate(self):
         self._execute_shell_command_after()
         logger.info('End aggregation of %s', self.cwd)
 
+    def _use_autoshare(self):
+        """Check wether `git-autoshare` is available or not"""
+        status, result = subprocess.getstatusoutput("git autoshare-clone")
+        if status == 1:
+            return False
+        logger.info("Git autoshare is installed. Taking advantage of it...")
+        return True
+
     def init_repository(self, target_dir):
-        logger.info('Init empty git repository in %s', target_dir)
-        self.log_call(['git', 'init', target_dir])
+        # Clone from the 1st merge specified
+        merge = self.merges[0]
+        repository = None
+        for remote in self.remotes:
+            if remote["name"] == merge["remote"]:
+                repository = remote["url"]
+        branch = merge["ref"]
+        logger.info('Cloning git repository %s (branch %s) in %s', repository, branch, target_dir)
+        cmd = ('git',)
+        if self._use_autoshare():
+            # Start with a prefetch to update the cache and then clone from there
+            logger.info('Updating cache for %s', repository)
+            self.log_call(['git', 'autoshare-prefetch', repository])
+            cmd += ('autoshare-clone',)
+        else:
+            cmd += ('clone',)
+        cmd += ('-b', branch)
+        cmd += self._fetch_options(merge)
+        cmd += (repository, target_dir)
+        self.log_call(cmd)
 
     def fetch(self):
         basecmd = ("git", "fetch")