Change WARNING to INFO (#574)

change the warning level to info level when expand relative path
add nnictl --version log
update readme.md

README.md

@@ -83,11 +83,12 @@ You can use these commands to get more information about the experiment
          commands                       description
 1. nnictl experiment show        show the information of experiments
 2. nnictl trial ls               list all of trial jobs
-3. nnictl log stderr             show stderr log content
-4. nnictl log stdout             show stdout log content
-5. nnictl stop                   stop an experiment
-6. nnictl trial kill             kill a trial job by id
-7. nnictl --help                 get help information about nnictl
+3. nnictl top                    monitor the status of running experiments
+4. nnictl log stderr             show stderr log content
+5. nnictl log stdout             show stdout log content
+6. nnictl stop                   stop an experiment
+7. nnictl trial kill             kill a trial job by id
+8. nnictl --help                 get help information about nnictl
 -----------------------------------------------------------------------
 ```
 

docs/NNICTLDOC.md

@@ -17,6 +17,7 @@ nnictl log
 nnictl webui
 nnictl tensorboard
 nnictl top
+nnictl --version
 ```
 ### Manage an experiment
 * __nnictl create__ 
@@ -363,3 +364,14 @@ nnictl top
        | Name, shorthand | Required|Default | Description |
        | ------ | ------ | ------ |------ |
      | id|  False| |ID of the experiment you want to set|
+
+### Check nni version
+
+* __nnictl --version__
+  * Description
+    
+    Describe the current version of nni installed.
+  
+  * Usage
+    
+        nnictl --version
\ No newline at end of file

tools/nni_cmd/launcher_utils.py

@@ -21,7 +21,7 @@
 import os
 import json
 from .config_schema import LOCAL_CONFIG_SCHEMA, REMOTE_CONFIG_SCHEMA, PAI_CONFIG_SCHEMA, KUBEFLOW_CONFIG_SCHEMA, FRAMEWORKCONTROLLER_CONFIG_SCHEMA
-from .common_utils import get_json_content, print_error, print_warning
+from .common_utils import get_json_content, print_error, print_warning, print_normal
 
 def expand_path(experiment_config, key):
     '''Change '~' to user home directory'''
@@ -32,7 +32,7 @@ def parse_relative_path(root_path, experiment_config, key):
     '''Change relative path to absolute path'''
     if experiment_config.get(key) and not os.path.isabs(experiment_config.get(key)):
         absolute_path = os.path.join(root_path, experiment_config.get(key))
-        print_warning('expand %s: %s to %s ' % (key, experiment_config[key], absolute_path))
+        print_normal('expand %s: %s to %s ' % (key, experiment_config[key], absolute_path))
         experiment_config[key] = absolute_path
 
 def parse_time(experiment_config):