Tiny fixes in yaml2json

plugins/client/utils/scripts/yaml2json

@@ -2,6 +2,7 @@
 # coding: utf-8
 
 # {{{ Imports
+import os
 import sys
 import argparse
 import yaml
@@ -24,26 +25,28 @@ def main():
                         help='Print additional debug informations: traceback, etc. (default: no)')
     parser.add_argument('datafile')
     options = parser.parse_args()
-    try:
-        data = {'data': []}
-        with open(options.datafile) as f:
-            datayml = yaml.safe_load(f)
-            if datayml is not None:
-                for section in datayml:
-                    localdata = {
-                        '{#KEY}': section,
-                    }
-                    for k in datayml[section]:
-                        localdata['{#%s}' % (k.upper())] = datayml[section][k]
-                    data['data'].append(localdata)
-        print(json.dumps(data, indent=4))
-    except Exception as e:
-        if not options.debug:
-            print('Exception raised (use --debug option to get more info): %s' % (unicode(e)))
-        else:
-            print('Exception raised: %s' % (e))
-            traceback.print_exc(file=sys.stderr)
-        sys.exit(-1)
+    data = {'data': []}
+    if os.path.exists(options.datafile):
+        try:
+            with open(options.datafile) as f:
+                datayml = yaml.safe_load(f)
+                if datayml is not None:
+                    for section in datayml:
+                        localdata = {
+                            '{#KEY}': section,
+                        }
+                        for k in datayml[section]:
+                            localdata['{#%s}' % (k.upper())] = datayml[section][k]
+                        data['data'].append(localdata)
+        except Exception as e:
+            if not options.debug:
+                print('Exception raised (use --debug option to get more info): %s' % (e), file=sys.stderr)
+            else:
+                print('Exception raised: %s' % (e), file=sys.stderr)
+                traceback.print_exc(file=sys.stderr)
+            print('ZBX_NOTSUPPORTED')
+            sys.exit(-1)
+    print(json.dumps(data, indent=4))
 # }}}
 
 # {{{ __main__