import: lazily import dns and git to make iocage faster (#98)

profiling work

Author: Defenso-QTH

iocage_lib/ioc_create.py

@@ -38,8 +38,6 @@
 import iocage_lib.ioc_start
 import iocage_lib.ioc_stop
 import iocage_lib.ioc_exceptions
-import dns.resolver
-import dns.exception
 import shutil
 
 from iocage_lib.cache import cache
@@ -763,6 +761,8 @@ def create_install_packages(self, jail_uuid, location,
                 _callback=self.callback,
                 silent=False)
 
+            import dns.resolver
+            import dns.exception
             try:
                 dns.resolver.query(repo)
             except dns.resolver.NoNameservers:

iocage_lib/ioc_plugin.py

@@ -29,7 +29,6 @@
 import json
 import logging
 import os
-import git
 import pathlib
 import re
 import shutil
@@ -1519,6 +1518,7 @@ def __fetch_release__(self, release):
     @staticmethod
     def _verify_git_repo(repo_url, destination):
         verified = False
+        import git
         with contextlib.suppress(
             git.exc.InvalidGitRepositoryError,
             git.exc.NoSuchPathError,
@@ -1534,6 +1534,7 @@ def _clone_repo(ref, repo_url, destination, depth=None, callback=None):
         """
         This is to replicate the functionality of cloning/pulling a repo
         """
+        import git
         with GIT_LOCK:
             branch = ref
             try: