diff: add --jobs support

Use multiprocessing to run diff in parallel.

Change-Id: I61e973d9c2cde039d5eebe8d0fe8bb63171ef447
Reviewed-on: https://gerrit-review.googlesource.com/c/git-repo/+/297483
Tested-by: Mike Frysinger <vapier@google.com>
Reviewed-by: Chris Mcdonald <cjmcdonald@google.com>

1 files changed, 3 insertions, 1 deletions

diff --git a/project.py b/project.py
index 52a77f1e..da67c363 100644
--- a/project.py
+++ b/project.py
@@ -832,10 +832,12 @@ class Project(object):
 
     return 'DIRTY'
 
-  def PrintWorkTreeDiff(self, absolute_paths=False):
+  def PrintWorkTreeDiff(self, absolute_paths=False, output_redir=None):
     """Prints the status of the repository to stdout.
     """
     out = DiffColoring(self.config)
+    if output_redir:
+      out.redirect(output_redir)
     cmd = ['diff']
     if out.is_on:
       cmd.append('--color')