[CT] Use zips of SKPs to speed up "isolate tests"

content/test/ct/run_ct_skps.py

 #!/usr/bin/env python
 # Copyright (c) 2015 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.
 
 """This script is meant to be run on a Swarming bot."""
 
 import argparse
 import os
 import subprocess
 import sys
+import zipfile
 
 
 PARENT_DIR = os.path.dirname(os.path.realpath(__file__))
 
 REPOS_BASE_DIR = os.path.normpath(os.path.join(
     PARENT_DIR, os.pardir, os.pardir, os.pardir, os.pardir))
 
 SKIA_SRC_DIR = os.path.join(REPOS_BASE_DIR, 'skia')
 
 
 def main():
   parser = argparse.ArgumentParser()
   parser.add_argument('-s', '--slave_num', required=True, type=int,
                       help='The slave num of this CT run.')
   parser.add_argument('-t', '--tool', required=True,
                       choices=['dm', 'nanobench'],
                       help='The tool to run on the SKPs.')
   parser.add_argument('-g', '--git_hash', required=True,
                       help='The Skia hash the tool was built at.')
   parser.add_argument('-c', '--configuration', required=True,
                       help='The build configuration to use.')
   parser.add_argument('-i', '--isolated_outdir', required=True,
                       help='Swarming will automatically upload to '
                            'isolateserver all artifacts in this dir.')
   args = parser.parse_args()
 
+  # Unzip SKPs into a directory.
+  skps_zip = os.path.join(REPOS_BASE_DIR, 'skps',
+                          'slave%d.zip' % args.slave_num)
+  skps_dir = os.path.join(REPOS_BASE_DIR, 'skps', 'slave%d' % args.slave_num)
+  os.makedirs(skps_dir)
+  with zipfile.ZipFile(skps_zip, 'r') as zip_ref:
+    zip_ref.extractall(skps_dir)
+
   tool_path = os.path.join(SKIA_SRC_DIR, 'out', args.configuration, args.tool)
-  skps_dir = os.path.join(REPOS_BASE_DIR, 'skps', 'slave%d' % args.slave_num)
   resource_path = os.path.join(SKIA_SRC_DIR, 'resources')
 
   cmd = [tool_path]
   if args.tool == 'dm':
     # Add DM specific arguments.
     cmd.extend([
       '--src', 'skp',
       '--skps', skps_dir,
       '--resourcePath', resource_path,
       '--config', '8888',
@@ skipping 14 matching lines @@
       '--key', 'arch', 'x86_64', 'compiler', 'GCC', 'cpu_or_gpu', 'CPU',
                'cpu_or_gpu_value', 'AVX2', 'model', 'SWARM', 'os', 'Ubuntu',
       '--verbose',
     ])
 
   return subprocess.call(cmd)
 
 
 if __name__ == '__main__':
   sys.exit(main())