[Android] Fix adb realpath command failure.

build/android/pylib/android_commands.py

Index: build/android/pylib/android_commands.py
diff --git a/build/android/pylib/android_commands.py b/build/android/pylib/android_commands.py
index 816b002479afe0dcc8913894189f4e5f823ef077..596a70c63ea5978a5b36f294d4a1ceda95416db1 100644
--- a/build/android/pylib/android_commands.py
+++ b/build/android/pylib/android_commands.py
@@ -1086,6 +1086,7 @@ class AndroidCommands(object):
     self._pushed_files.append(device_path)
     self._potential_push_size += size
 
+    self.RunShellCommand('mkdir -p "%s"' % device_path)

[jbudorick, 2014/05/20 18:03:39]

I'm still not sure that this will properly handle individual push path if the
directory is multiple levels deep. I'm writing a quick test to check.

[jbudorick, 2014/05/20 18:53:53]

Still not sure w.r.t. the above (although leaning toward it not being an issue),
but this doesn't appear to work if the device_path is the intended file name on
the device rather than the intended directory.

[Kibeom Kim (inactive), 2014/05/20 19:06:15]

Oh, I wasn't aware of that device_path can also be a file path. Is it OK to
assume that if host_path is a dir, then device_path is also a dir? (well,
obviously otherwise doesn't make sense)

so like.

if os.path.isdir(host_path):
  self.RunShellCommand('mkdir -p "%s"' % device_path)

[jbudorick, 2014/05/20 19:09:40]

Yeah, that seems fine to me. As you said, it wouldn't really make sense
otherwise.

[Kibeom Kim (inactive), 2014/05/20 19:13:27]

Done.

     changed_files = self.GetFilesChanged(host_path, device_path)
     logging.info('Found %d files that need to be pushed to %s',
         len(changed_files), device_path)