Update ansible-test sanity command. (#31958)

* Use correct pip version in ansible-test.
* Add git fallback for validate-modules.
* Run sanity tests in a docker container.
* Use correct python version for sanity tests.
* Pin docker completion images and add default.
* Split pylint execution into multiple contexts.
* Only test .py files in use-argspec-type-path test.
* Accept identical python interpeter name or binary.
* Switch cloud tests to default container.
* Remove unused extras from pip install.
* Filter out empty pip commands.
* Don't force running of pip list.
* Support delegation for windows and network tests.
* Fix ansible-test python version usage.
* Fix ansible-test python version skipping.
* Use absolute path for log in ansible-test.
* Run vyos_command test on python 3.
* Fix windows/network instance persistence.
* Add `test/cache` dir to classification.
* Enable more python versions for network tests.
* Fix cs_router test.

test/sanity/validate-modules/main.py

@@ -23,6 +23,7 @@ import abc
 import argparse
 import ast
 import json
+import errno
 import os
 import re
 import subprocess
@@ -1253,7 +1254,20 @@ class GitCache(object):
         else:
             self.base_tree = []
 
-        self.head_tree = self._git(['ls-tree', '-r', '--name-only', 'HEAD', 'lib/ansible/modules/'])
+        try:
+            self.head_tree = self._git(['ls-tree', '-r', '--name-only', 'HEAD', 'lib/ansible/modules/'])
+        except GitError as ex:
+            if ex.status == 128:
+                # fallback when there is no .git directory
+                self.head_tree = self._get_module_files()
+            else:
+                raise
+        except OSError as ex:
+            if ex.errno == errno.ENOENT:
+                # fallback when git is not installed
+                self.head_tree = self._get_module_files()
+            else:
+                raise
 
         self.base_module_paths = dict((os.path.basename(p), p) for p in self.base_tree if os.path.splitext(p)[1] in ('.py', '.ps1'))
 
@@ -1268,14 +1282,33 @@ class GitCache(object):
                 if os.path.islink(path):
                     self.head_aliased_modules.add(os.path.basename(os.path.realpath(path)))
 
+    @staticmethod
+    def _get_module_files():
+        module_files = []
+
+        for (dir_path, dir_names, file_names) in os.walk('lib/ansible/modules/'):
+            for file_name in file_names:
+                module_files.append(os.path.join(dir_path, file_name))
+
+        return module_files
+
     @staticmethod
     def _git(args):
         cmd = ['git'] + args
         p = subprocess.Popen(cmd, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
         stdout, stderr = p.communicate()
+        if p.returncode != 0:
+            raise GitError(stderr, p.returncode)
         return stdout.decode('utf-8').splitlines()
 
 
+class GitError(Exception):
+    def __init__(self, message, status):
+        super(GitError, self).__init__(message)
+
+        self.status = status
+
+
 if __name__ == '__main__':
     try:
         main()