Revert "Turn on git diff copy detection for git-cl upload."

This reverts commit db5a0def.

TBR=maruel@chromium.org


Review URL: https://chromiumcodereview.appspot.com/10532034

git-svn-id: svn://svn.chromium.org/chrome/trunk/tools/depot_tools@140808 0039d316-1c4b-4281-b951-d872f2087c98

git_cl.py

@@ -1019,10 +1019,7 @@ def RietveldUpload(options, args, cl):
     upload_args.extend(['--base_url', remote_url])
 
   try:
-    # upload uses '-C' by default when generating the diff for upload.
-    # Add another '-C' to trigger --find-copies-harder.
-    issue, patchset = upload.RealMain(['upload'] + upload_args + args +
-                                      ['--', '-C'])
+    issue, patchset = upload.RealMain(['upload'] + upload_args + args)
   except KeyboardInterrupt:
     sys.exit(1)
   except:
@@ -1115,7 +1112,7 @@ def CMDupload(parser, args):
   if 'GIT_EXTERNAL_DIFF' in env:
     del env['GIT_EXTERNAL_DIFF']
   subprocess2.call(
-      ['git', 'diff', '--no-ext-diff', '--stat', '-C', '-C'] + args, env=env)
+      ['git', 'diff', '--no-ext-diff', '--stat', '-M'] + args, env=env)
 
   if settings.GetIsGerrit():
     return GerritUpload(options, args, cl)

tests/git_cl_test.py

@@ -114,7 +114,7 @@ class TestGitCl(TestCase):
       ((['git', 'config', 'branch.master.rietveldpatchset'],), ''),
       ((['git', 'log', '--pretty=format:%s%n%n%b', 'master...'],), 'foo'),
       ((['git', 'config', 'user.email'],), 'me@example.com'),
-      ((['git', 'diff', '--no-ext-diff', '--stat', '-C', '-C', 'master...'],),
+      ((['git', 'diff', '--no-ext-diff', '--stat', '-M', 'master...'],),
        '+dat'),
       ((['git', 'log', '--pretty=format:%s\n\n%b', 'master..'],), 'desc\n'),
     ]
@@ -217,7 +217,7 @@ class TestGitCl(TestCase):
         '--message', description
     ] + args + [
         '--cc', 'joe@example.com',
-        'master...', '--', '-C',
+        'master...'
     ]
 
   def _run_reviewer_test(
@@ -347,7 +347,7 @@ class TestGitCl(TestCase):
         ((['git', 'config', 'branch.master.rietveldpatchset'],), ''),
         ((['git', 'log', '--pretty=format:%s%n%n%b', 'master...'],), 'foo'),
         ((['git', 'config', 'user.email'],), 'me@example.com'),
-        ((['git', 'diff', '--no-ext-diff', '--stat', '-C', '-C', 'master...'],),
+        ((['git', 'diff', '--no-ext-diff', '--stat', '-M', 'master...'],),
          '+dat'),
         ]