capture itemized output from rsync

This CL causes the stdout of rsync quickmerge to get captured rather
than sent to the terminal.

BUG=chromium:229234
TEST=Modified unit test so that it passes.
Change-Id: Ib65c2812b736e7556a28aa8712a03c7825ed8df2
Reviewed-on: https://gerrit.chromium.org/gerrit/47960
Reviewed-by: Aviv Keshet <akeshet@chromium.org>
Tested-by: Aviv Keshet <akeshet@chromium.org>
Reviewed-by: Brian Harring <ferringb@chromium.org>
Commit-Queue: Aviv Keshet <akeshet@chromium.org>
diff --git a/scripts/autotest_quickmerge.py b/scripts/autotest_quickmerge.py
index be93e19..3cb5761 100755
--- a/scripts/autotest_quickmerge.py
+++ b/scripts/autotest_quickmerge.py
@@ -81,7 +81,7 @@
 
 def RsyncQuickmerge(source_path, sysroot_autotest_path,
                     include_pattern_file=None, pretend=False,
-                    overwrite=False, quiet=False):
+                    overwrite=False):
   """Run rsync quickmerge command, with specified arguments.
   Command will take form `rsync -a [options] --exclude=**.pyc
                          --exclude=**.pyo
@@ -92,7 +92,6 @@
     pretend:   True to use the '-n' option to rsync, to perform dry run.
     overwrite: True to omit '-u' option, overwrite all files in sysroot,
                not just older files.
-    quiet:     True to omit the '-i' option, silence rsync change log.
   """
   command = ['rsync', '-a']
 
@@ -102,8 +101,7 @@
   if not overwrite:
     command += ['-u']
 
-  if not quiet:
-    command += ['-i']
+  command += ['-i']
 
   command += ['--exclude=**.pyc']
   command += ['--exclude=**.pyo']
@@ -119,7 +117,7 @@
 
   command += [source_path, sysroot_autotest_path]
 
-  cros_build_lib.SudoRunCommand(command)
+  return cros_build_lib.SudoRunCommand(command, redirect_stdout=True)
 
 
 def ParseArguments(argv):
@@ -162,10 +160,15 @@
   sysroot_autotest_path = os.path.join('/build', args.board, 'usr', 'local',
                                        'autotest', '')
 
-  RsyncQuickmerge(source_path, sysroot_autotest_path, include_pattern_file,
-                  args.pretend, args.overwrite, args.quiet)
+  rsync_output = RsyncQuickmerge(source_path, sysroot_autotest_path,
+      include_pattern_file, args.pretend, args.overwrite)
 
-  print 'Done'
+  print rsync_output.output
+
+  change_report = ItemizeChangesFromRsyncOutput(rsync_output.output,
+                                                sysroot_autotest_path)
+
+  print change_report
 
 
 if __name__ == '__main__':