lib/base: allow for results parsing on non-zero return code

On an 'oc get' in particular, the command may return a non-zero
error code while still having found valid resources. Thus, we should
parse the valid output while still reporting the error. oc_obj.get(),
for instance, takes care of determining if the return code should be
reset to 0 in some error cases.

Also do a bit of logic cleanup and output sanitizing.

Signed-off-by: Jose A. Rivera <jarrpa@redhat.com>

1 files changed, 16 insertions, 28 deletions

diff --git a/roles/lib_openshift/src/lib/base.py b/roles/lib_openshift/src/lib/base.py
index b3f01008b..16770b22d 100644
--- a/roles/lib_openshift/src/lib/base.py
+++ b/roles/lib_openshift/src/lib/base.py
@@ -273,10 +273,6 @@ class OpenShiftCLI(object):
         elif self.namespace is not None and self.namespace.lower() not in ['none', 'emtpy']:  # E501
             cmds.extend(['-n', self.namespace])
 
-        rval = {}
-        results = ''
-        err = None
-
         if self.verbose:
             print(' '.join(cmds))
 
@@ -286,34 +282,26 @@ class OpenShiftCLI(object):
             returncode, stdout, stderr = 1, '', 'Failed to execute {}: {}'.format(subprocess.list2cmdline(cmds), ex)
 
         rval = {"returncode": returncode,
-                "results": results,
                 "cmd": ' '.join(cmds)}
 
-        if returncode == 0:
-            if output:
-                if output_type == 'json':
-                    try:
-                        rval['results'] = json.loads(stdout)
-                    except ValueError as verr:
-                        if "No JSON object could be decoded" in verr.args:
-                            err = verr.args
-                elif output_type == 'raw':
-                    rval['results'] = stdout
-
-            if self.verbose:
-                print("STDOUT: {0}".format(stdout))
-                print("STDERR: {0}".format(stderr))
-
-            if err:
-                rval.update({"err": err,
-                             "stderr": stderr,
-                             "stdout": stdout,
-                             "cmd": cmds})
+        if output_type == 'json':
+            rval['results'] = {}
+            if output and stdout:
+                try:
+                    rval['results'] = json.loads(stdout)
+                except ValueError as verr:
+                    if "No JSON object could be decoded" in verr.args:
+                        rval['err'] = verr.args
+        elif output_type == 'raw':
+            rval['results'] = stdout if output else ''
 
-        else:
+        if self.verbose:
+            print("STDOUT: {0}".format(stdout))
+            print("STDERR: {0}".format(stderr))
+
+        if 'err' in rval or returncode != 0:
             rval.update({"stderr": stderr,
-                         "stdout": stdout,
-                         "results": {}})
+                         "stdout": stdout})
 
         return rval