pull: Add --force flag that permeates down to checkout

dvc/cli.py

@@ -325,6 +325,11 @@ def parse_args(argv=None):
                         default=False,
                         help='Fetch cache for all dependencies of the '
                              'specified target.')
+    pull_parser.add_argument(
+                        '-f',
+                        '--force',
+                        help='Do not prompt when removing '
+                             'working directory files.')
     pull_parser.set_defaults(func=CmdDataPull)
 
     # Push

dvc/command/data_sync.py

@@ -25,7 +25,8 @@ class CmdDataPull(CmdDataBase):
                               show_checksums=self.args.show_checksums,
                               all_branches=self.args.all_branches,
                               all_tags=self.args.all_tags,
-                              with_deps=self.args.with_deps)
+                              with_deps=self.args.with_deps,
+                              force=self.args.force)
         except Exception as exc:
             self.project.logger.error('Failed to pull data from the cloud',
                                       exc)

dvc/project.py

@@ -762,7 +762,8 @@ class Project(object):
              all_branches=False,
              show_checksums=False,
              with_deps=False,
-             all_tags=False):
+             all_tags=False,
+             force=False):
         self.fetch(target,
                    jobs,
                    remote=remote,
@@ -770,7 +771,7 @@ class Project(object):
                    all_tags=all_tags,
                    show_checksums=show_checksums,
                    with_deps=with_deps)
-        self.checkout(target=target, with_deps=with_deps)
+        self.checkout(target=target, with_deps=with_deps, force=force)
 
     def _local_status(self, target=None):
         status = {}