adding function to delete files from storage

Author: vsoch

setup.py

@@ -7,7 +7,7 @@
     name="singularity",
 
     # Version number:
-    version="0.83",
+    version="0.86",
 
     # Application author details:
     author="Vanessa Sochat",

singularity/analysis/compare.py

@@ -62,12 +62,12 @@ def container_similarity_vector(container1=None,packages_set=None,by=None,custom
     for b in by:
         bot.logger.debug("Starting comparisons for %s",b)
         df = pandas.DataFrame(columns=packages_set)
-        for package1 in packages_set:
+        for package2 in packages_set:
             sim = calculate_similarity(container1=container1,
-                                       image_package2=package1,
+                                       image_package2=package2,
                                        by=b)[b]
 
-            name1 = os.path.basename(package1).replace('.img.zip','')
+            name1 = os.path.basename(package2).replace('.img.zip','')
             bot.logger.debug("container vs. %s: %s" %(name1,sim))
             df.loc["container",package2] = sim
         df.columns = [os.path.basename(x).replace('.img.zip','') for x in df.columns.tolist()]

singularity/build/google.py

@@ -65,6 +65,16 @@ def get_bucket(storage_service,bucket_name):
     return req.execute()
 
 
+def delete_object(storage_service,bucket_name,object_name):
+    '''delete_file will delete a file from a bucket
+    :param storage_service: the service obtained with get_storage_service
+    :param bucket_name: the name of the bucket (eg singularity-hub)
+    :param object_name: the "name" parameter of the object.
+    '''
+    return storage_service.objects().delete(bucket=bucket_name,
+                                            object=object_name).execute()
+
+
 def upload_file(storage_service,bucket,bucket_path,file_name,verbose=True):
     '''get_folder will return the folder with folder_name, and if create=True,
     will create it if not found. If folder is found or created, the metadata is