Revert 97987 - Switching NaCl IRT to be built inside the chrome build.

chrome/build_nacl_irt.py

-#!/usr/bin/python
-# Copyright (c) 2011 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.
-
-import optparse
-import os
-import re
-import shutil
-import subprocess
-import sys
-
-
-# Where things are in relation to this script.
-SCRIPT_DIR = os.path.dirname(os.path.abspath(__file__))
-SRC_DIR = os.path.dirname(SCRIPT_DIR)
-NACL_DIR = os.path.join(SRC_DIR, 'native_client')
-
-# Pathing to the two command_buffer directories (relative to native_client).
-NACL_CMD_BUFFER_DIR = os.path.join('src', 'shared',
-                                   'ppapi_proxy', 'command_buffer')
-GPU_CMD_BUFFER_DIR = os.path.join('..', 'gpu', 'command_buffer')
-
-
-def RelativePath(path, base):
-  """Find the relative path.
-
-  Arguments:
-    path: path we want a relative path to.
-    base: path we want a relative path from.
-  Returns:
-    The relative path from base to path.
-  """
-  path = os.path.abspath(path)
-  base = os.path.abspath(base)
-  path_parts = path.split(os.sep)
-  base_parts = base.split(os.sep)
-  while path_parts and base_parts and path_parts[0] == base_parts[0]:
-    path_parts = path_parts[1:]
-    base_parts = base_parts[1:]
-  rel_parts = ['..'] * len(base_parts) + path_parts
-  return os.sep.join(rel_parts)
-
-
-def PrintInputs(platforms):
-  """Print all the transitive inputs required to build the IRT.
-
-  Arguments:
-    platforms: list of platform names to build for.
-  """
-  inputs = set()
-  for platform in platforms:
-    # Invoke scons to get dependency tree.
-    cmd = [
-        sys.executable, 'scons.py', '-n', '--tree=all',
-        '--mode=nacl', 'platform=' + platform,
-        'scons-out/nacl_irt-' + platform + '/staging/irt.nexe',
-    ]
-    p = subprocess.Popen(cmd, cwd=NACL_DIR,
-                         stdout=subprocess.PIPE,
-                         stderr=subprocess.PIPE)
-    (p_stdout, p_stderr) = p.communicate()
-    # If things fail on windows, try running --help, if that fails,
-    # emit this script as an input (to satiate gyp), and assume we're being
-    # run on a test only bot.
-    # TODO(bradnelson): add plumbing to the buildbots to allow this script
-    #     to know its on a test only bot + make scons return a _particular_
-    #     return code so we can detect this kind of fail in one step.
-    if p.returncode != 0 and sys.platform == 'win32':
-      cmd = [sys.executable, 'scons.py', '--help']
-      p = subprocess.Popen(cmd, cwd=NACL_DIR,
-                           stdout=subprocess.PIPE,
-                           stderr=subprocess.PIPE)
-      (p_stdout, p_stderr) = p.communicate()
-      if p.returncode !=0:
-        # If scons can't even run, emit just this script as an input.
-        # See comment above this one.
-        print RelativePath(__file__, SCRIPT_DIR).replace(os.sep, '/')
-        return
-    if p.returncode != 0:
-      sys.exit(2)
-    # Extract unique inputs.
-    for line in p_stdout.splitlines():
-      m = re.match('^[ -+|]*\+\-(.+)', line)
-      if not m:
-        continue
-      filename = m.group(1)
-      if '[' in filename:
-        continue
-      if filename.startswith('scons-out'):
-        continue
-      if filename.endswith('.nexe'):
-        continue
-      # Apply the underlay of gpu/command_buffer (to match scons).
-      if filename.startswith(NACL_CMD_BUFFER_DIR + os.sep):
-        filename = GPU_CMD_BUFFER_DIR + filename[len(NACL_CMD_BUFFER_DIR):]
-      inputs.add(filename)
-  # Check that everything exists and make it script relative.
-  # Exclude things above SRC_DIR.
-  rel_inputs = set()
-  for f in inputs:
-    nf = os.path.join(NACL_DIR, f)
-    if not os.path.exists(nf):
-      raise Exception('missing input file "%s"' % nf)
-    # If the relative path from SRC_DIR to the file starts with ../ ignore it.
-    # (i.e. the file is outside the client).
-    if RelativePath(nf, SRC_DIR).startswith('..' + os.sep):
-      continue
-    rel_inputs.add(RelativePath(nf, SCRIPT_DIR).replace(os.sep, '/'))
-  # Print it sorted.
-  rel_inputs = sorted(list(rel_inputs))
-  for f in rel_inputs:
-    print f
-
-
-def BuildIRT(platforms, out_dir):
-  """Build the IRT for several platforms.
-
-  Arguments:
-    platforms: list of platform names to build for.
-    out_dir: directory to output the IRT to.
-  """
-  # Make out_dir absolute.
-  out_dir = os.path.abspath(out_dir)
-  # Clean.
-  scons_out = os.path.join(NACL_DIR, 'scons-out')
-  if os.path.exists(scons_out):
-    shutil.rmtree(scons_out)
-  # Build for each platform.
-  for platform in platforms:
-    cmd = [
-        sys.executable, 'scons.py', '--verbose', '-j8',
-        '--mode=nacl', 'platform=' + platform,
-        'scons-out/nacl_irt-' + platform + '/staging/irt.nexe',
-    ]
-    print 'Running: ' + ' '.join(cmd)
-    # Work around the fact that python's readline module (used by scons),
-    # attempts to alter file handle state on stdin in a way that blocks if
-    # a process is not a member of a foreground job on a tty on OSX.
-    # e.g. On a Mac:
-    #
-    # hydric:test mseaborn$ python -c 'import readline' &
-    # [1] 67058
-    # hydric:test mseaborn$
-    # [1]+  Stopped                 python -c 'import readline'
-    #
-    # i.e. the process receives a stop signal when it's a background job.
-    if sys.platform == 'darwin':
-      devnull = open(os.devnull, 'r')
-    else:
-      devnull = None
-    p = subprocess.Popen(cmd, cwd=NACL_DIR, stdin=devnull)
-    p.wait()
-    if p.returncode != 0:
-      sys.exit(3)
-  # Copy out each platform after stripping.
-  for platform in platforms:
-    uplatform = platform.replace('-', '_')
-    platform2 = {'x86-32': 'i686', 'x86-64': 'x86_64'}.get(platform, platform)
-    cplatform = {
-        'win32': 'win',
-        'cygwin': 'win',
-        'darwin': 'mac',
-    }.get(sys.platform, 'linux')
-    nexe = os.path.join(out_dir, 'nacl_irt_' + uplatform + '.nexe')
-    cmd = [
-      '../native_client/toolchain/' + cplatform + '_x86_newlib/bin/' +
-          platform2 + '-nacl-strip',
-      '--strip-debug',
-      '../native_client/scons-out/nacl_irt-' + platform + '/staging/irt.nexe',
-      '-o', nexe
-    ]
-    print 'Running: ' + ' '.join(cmd)
-    p = subprocess.Popen(cmd, cwd=SCRIPT_DIR)
-    p.wait()
-    if p.returncode != 0:
-      sys.exit(4)
-
-
-def Main(argv):
-  parser = optparse.OptionParser()
-  parser.add_option('--inputs', dest='inputs', default=False,
-                    action='store_true',
-                    help='only emit the transitive inputs to the irt build')
-  parser.add_option('--platform', dest='platforms', action='append',
-                    default=[],
-                    help='add a platform to build for (x86-32|x86-64)')
-  parser.add_option('--outdir', dest='outdir',
-                    help='directory to out irt to')
-  (options, args) = parser.parse_args(argv[1:])
-  if args or not options.platforms or (
-      not options.inputs and not options.outdir):
-    parser.print_help()
-    sys.exit(1)
-
-  if options.inputs:
-    PrintInputs(options.platforms)
-  else:
-    BuildIRT(options.platforms, options.outdir)
-
-
-if __name__ == '__main__':
-  Main(sys.argv)