Use --cachedir for extension_modules in salt-call (bsc#1226141)

* Use --cachedir parameter for extension_modules with salt-call

* Add test to check extension_modules value alignment

salt/cli/call.py

@@ -3,7 +3,7 @@
 import salt.cli.caller
 import salt.defaults.exitcodes
 import salt.utils.parsers
-from salt.config import _expand_glob_path
+from salt.config import _expand_glob_path, prepend_root_dir
 
 
 class SaltCall(salt.utils.parsers.SaltCallOptionParser):
@@ -37,6 +37,15 @@ def run(self):
         if self.options.master:
             self.config["master"] = self.options.master
 
+        if self.options.cachedir and self.config.get(
+            "extension_modules"
+        ) == os.path.join(self.config.get("__cachedir"), "extmods"):
+            # Override `extension_modules`, but only in case if it was autogenerated
+            cache_dir = os.path.abspath(self.options.cachedir)
+            self.config["cachedir"] = cache_dir
+            self.config["extension_modules"] = os.path.join(cache_dir, "extmods")
+            prepend_root_dir(self.config, ["cachedir", "extension_modules"])
+
         caller = salt.cli.caller.Caller.factory(self.config)
 
         if self.options.doc:

salt/config/__init__.py

@@ -1,6 +1,7 @@
 """
 All salt configuration loading and defaults should be in this module
 """
+
 import codecs
 import glob
 import logging
@@ -3841,6 +3842,11 @@ def apply_minion_config(
     _update_ssl_config(opts)
     _update_discovery_config(opts)
 
+    # Store original `cachedir` value, before overriding,
+    # to make overriding more accurate.
+    if "__cachedir" not in opts:
+        opts["__cachedir"] = opts["cachedir"]
+
     return opts
 
 

tests/pytests/unit/cli/test_salt_call.py

@@ -0,0 +1,32 @@
+import os
+
+from salt.cli.call import SaltCall
+from tests.support.mock import MagicMock, patch
+
+
+def test_passing_cachedir_to_extension_modules(temp_salt_minion):
+    """
+    Test passing `cachedir` CLI parameter to `extension_modules` opts
+    """
+    test_cache_dir = os.path.join(temp_salt_minion.config["root_dir"], "new_cache_tmp")
+    with patch(
+        "sys.argv",
+        [
+            "salt-call",
+            "--local",
+            "--config-dir",
+            temp_salt_minion.config["root_dir"],
+            "--cachedir",
+            test_cache_dir,
+            "test.true",
+        ],
+    ), patch("salt.utils.verify.verify_files", MagicMock()), patch(
+        "salt._logging.impl.setup_logfile_handler", MagicMock()
+    ):
+        salt_call = SaltCall()
+        with patch("salt.cli.caller.Caller.factory", MagicMock()) as caller_mock:
+            salt_call.run()
+            assert salt_call.config["cachedir"] == test_cache_dir
+            assert salt_call.config["extension_modules"] == os.path.join(
+                test_cache_dir, "extmods"
+            )