Deprioritise completing for environment directories

Only complete for directories to "activate" if the current stem includes
a slash.

conda

@@ -179,8 +179,12 @@ _comp_conda()
                 word_list=$(__comp_conda_env_commands 2>/dev/null)
                 ;;
             activate)
-                _filedir -d                     # environment directories
-                word_list=$(__comp_conda_envs 2>/dev/null)
+                if [[ $cur == */* ]]
+                then
+                    _filedir -d  # environment directories
+                else
+                    word_list=$(__comp_conda_envs 2>/dev/null)
+                fi
                 ;;
             remove|uninstall|upgrade|update)
                 word_list=$(__comp_conda_packages 2>/dev/null)

tests/test_conda.py

@@ -84,9 +84,16 @@ def test_sub_comands(self, completion):
         ]
 
     @pytest.mark.complete("conda activate ")
-    def test_environments(self, completion):
+    def test_activate_environment(self, completion):
         assert completion
         assert 'conda-bash-comp-testing' in completion
+        assert 'fixture/' not in completion
+
+    @pytest.mark.complete("conda activate ../")
+    def test_activate_path(self, completion):
+        assert completion
+        assert 'conda-bash-comp-testing' not in completion
+        assert 'fixture/' in completion
 
     @pytest.mark.complete("conda env create --")
     def test_sub_comand_options(self, completion):