gyp_skia: use path python, be quiet

gyp_skia

-#!/usr/bin/python
+#!/usr/bin/env python
 
 # Copyright 2011 The Android Open Source Project
 #
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 # This script is a wrapper which invokes gyp with the correct --depth argument,
 # and supports the automatic regeneration of build files if all.gyp is
 # changed (Linux-only).
 
@@ skipping 59 matching lines @@
   if os.path.isabs(output_dir):
     return output_dir
   else:
     return os.path.join(os.path.abspath(script_dir), output_dir)
 
 
 if __name__ == '__main__':
   args = sys.argv[1:]
 
   if not os.getenv(ENVVAR_GYP_GENERATORS):
-    print ('%s environment variable not set, using default' %
-           ENVVAR_GYP_GENERATORS)
     if sys.platform.startswith('darwin'):
       default_gyp_generators = 'ninja,xcode'
     elif sys.platform.startswith('win'):
       default_gyp_generators = 'ninja,msvs-ninja'
     elif sys.platform.startswith('cygwin'):
       default_gyp_generators = 'ninja,msvs-ninja'
     else:
       default_gyp_generators = 'ninja'
     os.environ[ENVVAR_GYP_GENERATORS] = default_gyp_generators
-  print '%s is "%s"' % (ENVVAR_GYP_GENERATORS, os.getenv(ENVVAR_GYP_GENERATORS))
+    print ('%s environment variable not set, using default, %s' %
+           (ENVVAR_GYP_GENERATORS, default_gyp_generators))
 
   vs2013_runtime_dll_dirs = None
   if os.getenv('CHROME_HEADLESS', '0') == '1':
     if sys.platform.startswith('win') or sys.platform.startswith('cygwin'):
       chrome_path = os.getenv('CHROME_PATH')
       os.chdir(chrome_path)
       sys.path.append(os.path.join(chrome_path, 'build'))
       sys.path.append(os.path.join(chrome_path, 'tools'))
       import vs_toolchain
       vs2013_runtime_dll_dirs = \
@@ skipping 38 matching lines @@
     gyp_generator_flags = os.getenv(ENVVAR_GYP_GENERATOR_FLAGS, '')
     if not 'msvs_error_on_missing_sources' in gyp_generator_flags:
       os.environ[ENVVAR_GYP_GENERATOR_FLAGS] = (
           gyp_generator_flags + ' msvs_error_on_missing_sources=1')
 
   # GYP is very conservative about how many concurrent linker calls it allows,
   # to fit in RAM. We don't need to be nearly as conservative as Chrome.  We'll
   # just turn that feature off.
   os.environ['GYP_LINK_CONCURRENCY'] = '9001'
 
-  print 'Updating projects from gyp files...'
-  sys.stdout.flush()
-
   if '--dry-run' in args:
     args.remove('--dry-run')
     print gyp_source_dir, ' '.join(args)
   else:
     # Off we go...
     res = gyp.main(args)
     if res:
       sys.exit(res)
 
   # This code is copied from Chrome's build/gyp_chromium. It's not clear why
   # the *_runtime variables are reversed.
   if vs2013_runtime_dll_dirs:
     x64_runtime, x86_runtime = vs2013_runtime_dll_dirs
     vs_toolchain.CopyVsRuntimeDlls(
         os.path.join(os.getenv('CHROME_PATH'), get_output_dir()),
         (x86_runtime, x64_runtime))