Reland "Skia: Maintain a checkout on swarming (compile) bots"

scripts/slave/recipes/skia/skia.py

 # Copyright 2014 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 
 # Recipe module for Skia builders.
 
 
 DEPS = [
   'recipe_engine/json',
@@ skipping 132 matching lines @@
 
         yield test
 
   builder = 'Test-Ubuntu-GCC-GCE-CPU-AVX2-x86_64-Debug'
   yield (
     api.test('failed_dm') +
     api.properties(buildername=builder,
                    mastername='client.skia',
                    slavename='skiabot-linux-tester-000',
                    buildnumber=6) +
-    api.step_data('dm', retcode=1)
+    api.step_data('dm', retcode=1) +
+    api.path.exists(api.path['slave_build'])
   )
 
   yield (
     api.test('has_ccache_android') +
     api.properties(buildername='Build-Ubuntu-GCC-Arm7-Debug-Android',
                    mastername='client.skia.compile',
                    slavename='skiabot-linux-compile-000') +
     api.step_data(
                 'has ccache?',
-                stdout=api.json.output({'ccache':'/usr/bin/ccache'}))
+                stdout=api.json.output({'ccache':'/usr/bin/ccache'})) +
+    api.path.exists(api.path['slave_build'])
   )
 
   builder = 'Test-Android-GCC-Nexus7-GPU-Tegra3-Arm7-Debug'
   master = 'client.skia.android'
   slave = 'skiabot-shuttle-ubuntu12-nexus7-001'
   yield (
     api.test('failed_get_hashes') +
     api.properties(buildername=builder,
                    mastername=master,
                    slavename=slave,
@@ skipping 135 matching lines @@
                    mastername=master,
                    slavename=slave,
                    buildnumber=6,
                    revision='abc123') +
     api.step_data('Get downloaded SK_IMAGE_VERSION', retcode=1) +
     api.path.exists(
         api.path['slave_build'].join('skia'),
         api.path['slave_build'].join('tmp', 'uninteresting_hashes.txt')
     )
   )