fixed non ignore errors path to actually interrupt

fixed cases where missing/inaccessible file gave exception, now you get nice error

lib/ansible/cli/galaxy.py

@@ -154,8 +154,7 @@ class GalaxyCLI(CLI):
         option --ignore-errors was specified
         """
         if not self.get_opt("ignore_errors", False):
-            self.display.error('- you can use --ignore-errors to skip failed roles and finish processing the list.')
-            return rc
+            raise AnsibleError('- you can use --ignore-errors to skip failed roles and finish processing the list.')
 
     def execute_init(self):
         """
@@ -321,20 +320,24 @@ class GalaxyCLI(CLI):
         roles_done = []
         roles_left = []
         if role_file:
+            try:
                 f = open(role_file, 'r')
                 if role_file.endswith('.yaml') or role_file.endswith('.yml'):
                     try:
                         rolesparsed = map(self.parse_requirements_files, yaml.safe_load(f))
-                except:
-                   raise AnsibleError("%s does not seem like a valid yaml file" % role_file)
+                    except Exception as e:
+                       raise AnsibleError("%s does not seem like a valid yaml file: %s" % (role_file, str(e)))
                     roles_left = [GalaxyRole(self.galaxy, **r) for r in rolesparsed]
                 else:
                     # roles listed in a file, one per line
+                    self.display.deprecated("Non yaml files for role requirements")
                     for rname in f.readlines():
                         if rname.startswith("#") or rname.strip() == '':
                             continue
                         roles_left.append(GalaxyRole(self.galaxy, rname.strip()))
                 f.close()
+            except (IOError,OSError) as e:
+                raise AnsibleError("Unable to read requirements file (%s): %s" % (role_file, str(e)))
         else:
             # roles were specified directly, so we'll just go out grab them
             # (and their dependencies, unless the user doesn't want us to).

lib/ansible/plugins/connections/paramiko_ssh.py

@@ -179,6 +179,7 @@ class Connection(ConnectionBase):
                 key_filename=key_filename,
                 password=self._play_context.password,
                 timeout=self._play_context.timeout,
+                compress=True,
                 port=port,
             )
         except Exception as e: