[gn] Move build to gypfiles

build/landmine_utils.py

Index: build/landmine_utils.py
diff --git a/build/landmine_utils.py b/build/landmine_utils.py
deleted file mode 100644
index cb3499132a3c2f0b434eee1fadd6bdc513541db7..0000000000000000000000000000000000000000
--- a/build/landmine_utils.py
+++ /dev/null
@@ -1,123 +0,0 @@
-# Copyright 2014 the V8 project authors. All rights reserved.
-# Use of this source code is governed by a BSD-style license that can be
-# found in the LICENSE file.
-
-
-import functools
-import logging
-import os
-import shlex
-import sys
-
-
-def memoize(default=None):
-  """This decorator caches the return value of a parameterless pure function"""
-  def memoizer(func):
-    val = []
-    @functools.wraps(func)
-    def inner():
-      if not val:
-        ret = func()
-        val.append(ret if ret is not None else default)
-        if logging.getLogger().isEnabledFor(logging.INFO):
-          print '%s -> %r' % (func.__name__, val[0])
-      return val[0]
-    return inner
-  return memoizer
-
-
-@memoize()
-def IsWindows():
-  return sys.platform in ['win32', 'cygwin']
-
-
-@memoize()
-def IsLinux():
-  return sys.platform.startswith(('linux', 'freebsd'))
-
-
-@memoize()
-def IsMac():
-  return sys.platform == 'darwin'
-
-
-@memoize()
-def gyp_defines():
-  """Parses and returns GYP_DEFINES env var as a dictionary."""
-  return dict(arg.split('=', 1)
-      for arg in shlex.split(os.environ.get('GYP_DEFINES', '')))
-
-
-@memoize()
-def gyp_generator_flags():
-  """Parses and returns GYP_GENERATOR_FLAGS env var as a dictionary."""
-  return dict(arg.split('=', 1)
-      for arg in shlex.split(os.environ.get('GYP_GENERATOR_FLAGS', '')))
-
-
-@memoize()
-def gyp_msvs_version():
-  return os.environ.get('GYP_MSVS_VERSION', '')
-
-
-@memoize()
-def distributor():
-  """
-  Returns a string which is the distributed build engine in use (if any).
-  Possible values: 'goma', 'ib', ''
-  """
-  if 'goma' in gyp_defines():
-    return 'goma'
-  elif IsWindows():
-    if 'CHROME_HEADLESS' in os.environ:
-      return 'ib' # use (win and !goma and headless) as approximation of ib
-
-
-@memoize()
-def platform():
-  """
-  Returns a string representing the platform this build is targetted for.
-  Possible values: 'win', 'mac', 'linux', 'ios', 'android'
-  """
-  if 'OS' in gyp_defines():
-    if 'android' in gyp_defines()['OS']:
-      return 'android'
-    else:
-      return gyp_defines()['OS']
-  elif IsWindows():
-    return 'win'
-  elif IsLinux():
-    return 'linux'
-  else:
-    return 'mac'
-
-
-@memoize()
-def builder():
-  """
-  Returns a string representing the build engine (not compiler) to use.
-  Possible values: 'make', 'ninja', 'xcode', 'msvs', 'scons'
-  """
-  if 'GYP_GENERATORS' in os.environ:
-    # for simplicity, only support the first explicit generator
-    generator = os.environ['GYP_GENERATORS'].split(',')[0]
-    if generator.endswith('-android'):
-      return generator.split('-')[0]
-    elif generator.endswith('-ninja'):
-      return 'ninja'
-    else:
-      return generator
-  else:
-    if platform() == 'android':
-      # Good enough for now? Do any android bots use make?
-      return 'make'
-    elif platform() == 'ios':
-      return 'xcode'
-    elif IsWindows():
-      return 'msvs'
-    elif IsLinux():
-      return 'make'
-    elif IsMac():
-      return 'xcode'
-    else:
-      assert False, 'Don\'t know what builder we\'re using!'