[scm] Fix list all files when filename has space

Off by one - we should have 4 parts, so we need maxsplit=3.

R=aravindvasudev@google.com, jojwang

Fixed: 1474283
Change-Id: I13b568feb8ee2aa307a2267c43765c1749b77c90
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/tools/depot_tools/+/4799773
Auto-Submit: Josip Sokcevic <sokcevic@chromium.org>
Reviewed-by: Aravind Vasudevan <aravindvasudev@google.com>
Commit-Queue: Aravind Vasudevan <aravindvasudev@google.com>

scm.py

@@ -385,7 +385,7 @@ class GIT(object):
     command = ['-c', 'core.quotePath=false', 'ls-files', '-s', '--', '.']
     files = GIT.Capture(command, cwd=cwd).splitlines(False)
     # return only files
-    return [f.split(maxsplit=4)[-1] for f in files if f.startswith('100')]
+    return [f.split(maxsplit=3)[-1] for f in files if f.startswith('100')]
 
   @staticmethod
   def GetPatchName(cwd):

testing_support/fake_repos.py

@@ -233,8 +233,10 @@ class FakeRepos(FakeReposBase):
       'origin': 'git/repo_3@2\n',
     })
 
-    self._commit_git('repo_1', {
-      'DEPS': """
+    self._commit_git(
+        'repo_1',
+        {
+            'DEPS': """
 vars = {
   'DummyVariable': 'repo',
   'false_var': False,
@@ -272,15 +274,16 @@ deps_os = {
     'src/repo4': '/repo_4',
   },
 }""" % {
-            'git_base': self.git_base,
-            # See self.__init__() for the format. Grab's the hash of the first
-            # commit in repo_2. Only keep the first 7 character because of:
-            # TODO(maruel): http://crosbug.com/3591 We need to strip the hash..
-            # duh.
-            'hash3': self.git_hashes['repo_3'][1][0][:7]
-        },
-        'origin': 'git/repo_1@1\n',
-    })
+                'git_base': self.git_base,
+                # See self.__init__() for the format. Grab's the hash of the
+                # first commit in repo_2. Only keep the first 7 character
+                # because of: TODO(maruel): http://crosbug.com/3591 We need to
+                # strip the hash..  duh.
+                'hash3': self.git_hashes['repo_3'][1][0][:7]
+            },
+            'origin': 'git/repo_1@1\n',
+            'foo bar': 'some file with a space',
+        })
 
     self._commit_git('repo_2', {
       'origin': 'git/repo_2@1\n',

tests/scm_unittest.py

@@ -170,7 +170,8 @@ class RealGitTest(fake_repos.FakeReposTestBase):
     self.assertFalse(scm.GIT.IsAncestor(self.githash('repo_1', 1), 'zebra'))
 
   def testGetAllFiles(self):
-    self.assertEqual(['DEPS','origin'], scm.GIT.GetAllFiles(self.cwd))
+    self.assertEqual(['DEPS', 'foo bar', 'origin'],
+                     scm.GIT.GetAllFiles(self.cwd))
 
   def testGetSetConfig(self):
     key = 'scm.test-key'