fixes to vault/copy

rm _del_ as it might leak memory
renamed to tmp file cleanup
added exception handling when traversing file list, even if one fails try rest
added cleanup to finally to ensure removal in most cases

lib/ansible/parsing/dataloader.py

@@ -23,11 +23,9 @@ import copy
 import os
 import json
 import subprocess
-from yaml import YAMLError
 import tempfile
+from yaml import YAMLError
 
-from yaml import load, YAMLError
->>>>>>> feature/copy-vault-dataloader: Add method get_real_file(file_path) to dataloader
 from ansible.compat.six import text_type, string_types
 
 from ansible.errors import AnsibleFileNotFound, AnsibleParserError, AnsibleError
@@ -67,10 +65,6 @@ class DataLoader():
         # initialize the vault stuff with an empty password
         self.set_vault_password(None)
 
-    def __del__(self):
-         for f in self._tempfiles:
-            os.unlink(f)
-
     def set_vault_password(self, vault_password):
         self._vault_password = vault_password
         self._vault = VaultLib(password=vault_password)
@@ -352,9 +346,9 @@ class DataLoader():
             return real_path
 
         except (IOError, OSError) as e:
-            raise AnsibleParserError("an error occurred while trying to read the file '%s': %s" % (file_name, str(e)))
+            raise AnsibleParserError("an error occurred while trying to read the file '%s': %s" % (real_path, str(e)))
 
-    def cleanup_real_file(self, file_path):
+    def cleanup_tmp_file(self, file_path):
         """
         Removes any temporary files created from a previous call to
         get_real_file. file_path must be the path returned from a
@@ -363,3 +357,10 @@ class DataLoader():
         if file_path in self._tempfiles:
             os.unlink(file_path)
             self._tempfiles.remove(file_path);
+
+    def cleanup_all_tmp_files(self):
+        for f in self._tempfiles:
+            try:
+                self.cleanup_tmp_file(f)
+            except:
+                pass #TODO: this should at least warn