AMBARI-5317. Create test script for running python component scripts from IDE (aonishuk)
diff --git a/ambari-agent/src/main/python/resource_management/libraries/script/script.py b/ambari-agent/src/main/python/resource_management/libraries/script/script.py
index 005d915..d62bcd1 100644
--- a/ambari-agent/src/main/python/resource_management/libraries/script/script.py
+++ b/ambari-agent/src/main/python/resource_management/libraries/script/script.py
@@ -20,6 +20,7 @@
__all__ = ["Script"]
+import os
import sys
import json
import logging
@@ -30,6 +31,14 @@
from resource_management.libraries.script.config_dictionary import ConfigDictionary
from resource_management.libraries.script.repo_installer import RepoInstaller
+USAGE = """Usage: {0} <COMMAND> <JSON_CONFIG> <BASEDIR> <STROUTPUT>
+
+<COMMAND> command type (INSTALL/CONFIGURE/START/STOP/SERVICE_CHECK...)
+<JSON_CONFIG> path to command json file. Ex: /var/lib/ambari-agent/data/command-2.json
+<BASEDIR> path to service metadata dir. Ex: /var/lib/ambari-agent/cache/stacks/HDP/2.0.6/services/HDFS
+<STROUTPUT> path to file with structured command output (file will be created). Ex:/tmp/my.txt
+"""
+
class Script(object):
"""
Executes a command for custom service. stdout and stderr are written to
@@ -73,9 +82,11 @@
logger.addHandler(cherr)
logger.addHandler(chout)
# parse arguments
- if len(sys.argv) < 5:
- logger.error("Script expects at least 4 arguments")
- sys.exit(1)
+ if len(sys.argv) < 5:
+ logger.error("Script expects at least 4 arguments")
+ print USAGE.format(os.path.basename(sys.argv[0])) # print to stdout
+ sys.exit(1)
+
command_name = str.lower(sys.argv[1])
# parse command parameters
command_data_file = sys.argv[2]
