s3_sync: removing irrelevant s3.list_buckets() call - fixes #23409 (#23492)

* Removing irrelevant s3 call

Fix exception handling

Make s3_sync pep8 and remove from legacy file

lib/ansible/modules/cloud/amazon/s3_sync.py

@@ -191,6 +191,7 @@ import datetime
 from dateutil import tz
 import hashlib
 import fnmatch
+import traceback
 
 # import module snippets
 from ansible.module_utils.basic import AnsibleModule
@@ -207,6 +208,7 @@ try:
 except ImportError:
     HAS_BOTO3 = False
 
+
 def boto_exception(err):
     '''generic error message handler'''
     if hasattr(err, 'error_message'):
@@ -242,6 +244,8 @@ def boto_exception(err):
 # along with calculate_multipart_etag.  If not, see <http://www.gnu.org/licenses/>.
 
 DEFAULT_CHUNK_SIZE = 5 * 1024 * 1024
+
+
 def calculate_multipart_etag(source_path, chunk_size=DEFAULT_CHUNK_SIZE):
 
     """
@@ -307,13 +311,14 @@ def gather_files(fileroot, include=None, exclude=None):
                 'fullpath': fullpath,
                 'chopped_path': chopped_path,
                 'modified_epoch': f_modified_epoch,
-                'bytes': f_size
+                'bytes': f_size,
             })
         # dirpath = path *to* the directory
         # dirnames = subdirs *in* our directory
         # filenames
     return ret
 
+
 def calculate_s3_path(filelist, key_prefix=''):
     ret = []
     for fileentry in filelist:
@@ -323,6 +328,7 @@ def calculate_s3_path(filelist, key_prefix=''):
         ret.append(retentry)
     return ret
 
+
 def calculate_local_etag(filelist, key_prefix=''):
     '''Really, "calculate md5", but since AWS uses their own format, we'll just call
        it a "local etag". TODO optimization: only calculate if remote key exists.'''
@@ -334,6 +340,7 @@ def calculate_local_etag(filelist, key_prefix=''):
         ret.append(retentry)
     return ret
 
+
 def determine_mimetypes(filelist, override_map):
     ret = []
     for fileentry in filelist:
@@ -357,6 +364,7 @@ def determine_mimetypes(filelist, override_map):
 
     return ret
 
+
 def head_s3(s3, bucket, s3keys):
     retkeys = []
     for entry in s3keys:
@@ -377,6 +385,7 @@ def head_s3(s3, bucket, s3keys):
         retkeys.append(retentry)
     return retkeys
 
+
 def filter_list(s3, bucket, s3filelist, strategy):
     keeplist = list(s3filelist)
 
@@ -429,6 +438,7 @@ def filter_list(s3, bucket, s3filelist, strategy):
     # prune 'please skip' entries, if any.
     return [x for x in keeplist if not x.get('skip_flag')]
 
+
 def upload_files(s3, bucket, filelist, params):
     ret = []
     for entry in filelist:
@@ -437,6 +447,7 @@ def upload_files(s3, bucket, filelist, params):
         }
         if params.get('permission'):
             args['ACL'] = params['permission']
+        # if this fails exception is caught in main()
         s3.upload_file(entry['fullpath'], bucket, entry['s3_path'], ExtraArgs=args, Callback=None, Config=None)
         ret.append(entry)
     return ret
@@ -450,8 +461,8 @@ def main():
         bucket=dict(required=True),
         key_prefix=dict(required=False, default=''),
         file_root=dict(required=True, type='path'),
-        permission = dict(required=False, choices=['private', 'public-read', 'public-read-write', 'authenticated-read', 'aws-exec-read', 'bucket-owner-read',
-                                                   'bucket-owner-full-control']),
+        permission=dict(required=False, choices=['private', 'public-read', 'public-read-write', 'authenticated-read',
+                                                 'aws-exec-read', 'bucket-owner-read', 'bucket-owner-full-control']),
         retries=dict(required=False),
         mime_map=dict(required=False, type='dict'),
         exclude=dict(required=False, default=".*"),
@@ -469,13 +480,10 @@ def main():
     result = {}
     mode = module.params['mode']
 
-
-    try:
     region, ec2_url, aws_connect_kwargs = ansible.module_utils.ec2.get_aws_connection_info(module, boto3=True)
+    if not region:
+        module.fail_json(msg="Region must be specified")
     s3 = ansible.module_utils.ec2.boto3_conn(module, conn_type='client', resource='s3', region=region, endpoint=ec2_url, **aws_connect_kwargs)
-        s3.list_buckets()
-    except botocore.exceptions.NoCredentialsError as e:
-        module.fail_json(msg=str(e))
 
     if mode == 'push':
         try:
@@ -490,10 +498,9 @@ def main():
             if result.get('uploads') and len(result.get('uploads')):
                 result['changed'] = True
             # result.update(filelist=actionable_filelist)
-        except Exception as err:
+        except botocore.exceptions.ClientError as err:
             error_msg = boto_exception(err)
-            import traceback # traces get swallowed by Ansible.
-            module.fail_json(msg=error_msg, traceback=traceback.format_exc().splitlines())
+            module.fail_json(msg=error_msg, exception=traceback.format_exc(), **camel_dict_to_snake_dict(err.response))
 
     module.exit_json(**result)
 

test/sanity/pep8/legacy-files.txt

@@ -213,7 +213,6 @@ lib/ansible/modules/cloud/amazon/s3.py
 lib/ansible/modules/cloud/amazon/s3_bucket.py
 lib/ansible/modules/cloud/amazon/s3_lifecycle.py
 lib/ansible/modules/cloud/amazon/s3_logging.py
-lib/ansible/modules/cloud/amazon/s3_sync.py
 lib/ansible/modules/cloud/amazon/s3_website.py
 lib/ansible/modules/cloud/amazon/sns_topic.py
 lib/ansible/modules/cloud/amazon/sts_assume_role.py