Dropping in software construction toolkit.

site_scons/site_tools/target_platform_mac.py

Index: site_scons/site_tools/target_platform_mac.py
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--- site_scons/site_tools/target_platform_mac.py	(revision 0)
+++ site_scons/site_tools/target_platform_mac.py	(revision 0)
@@ -0,0 +1,173 @@
+#!/usr/bin/python2.4
+# Copyright 2008, Google Inc.
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+#     * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#     * Redistributions in binary form must reproduce the above
+# copyright notice, this list of conditions and the following disclaimer
+# in the documentation and/or other materials provided with the
+# distribution.
+#     * Neither the name of Google Inc. nor the names of its
+# contributors may be used to endorse or promote products derived from
+# this software without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+"""Build tool setup for MacOS.
+
+This module is a SCons tool which should be include in the topmost mac
+environment.
+It is used as follows:
+  env = base_env.Clone(tools = ['component_setup'])
+  mac_env = base_env.Clone(tools = ['target_platform_mac'])
+"""
+
+
+import SCons.Script
+
+
+def ComponentPlatformSetup(env, builder_name):
+  """Hook to allow platform to modify environment inside a component builder.
+
+  Args:
+    env: Environment to modify
+    builder_name: Name of the builder
+  """
+  if env.get('ENABLE_EXCEPTIONS'):
+    env.FilterOut(CCFLAGS=['-fno-exceptions'])
+    env.Append(CCFLAGS=['-fexceptions'])
+
+#------------------------------------------------------------------------------
+
+
+def BundlePseudoBuilder(env, target, **kwargs):
+  """MacOS Bundle PseudoBuilder.
+
+  Args:
+    env: Environment in which to build
+    target: Name of the bundle to build
+    kwargs: Additional parameters to set in the environment
+
+  Returns:
+    The target is returned.
+  """
+  # Don't change the environment passed into the pseudo-builder
+  env = env.Clone()
+
+  # Bring keywords args into the environment.
+  for k, v in kwargs.items():
+    env[k] = v
+  # Make sure BUNDLE_RESOURCES is set and not empty; force it to be a list
+  bundle_resources = env.Flatten(env.get('BUNDLE_RESOURCES', []))
+  if not bundle_resources:
+    raise ValueError('BUNDLE_RESOURCES must be set and non-empty')
+
+  # Make each resource into a directory node.
+  # TODO(jrg): this seems a little too restrictive.
+  # bundle_resources = [env.Dir(i) for i in bundle_resources]
+  bundle_resources = [i for i in bundle_resources]
+
+  # Create a PkgInfo file only if BUNDLE_PKGINFO_FILENAME is useful.
+  # (NPAPI bundles are unhappy with PkgInfo files.)
+  # TODO(jrg): discuss method with Bradley
+  if env.get('BUNDLE_PKGINFO_FILENAME'):
+    pkginfo_create_command = ('$BUNDLE_GENERATE_PKGINFO '
+                              '>$TARGET/$BUNDLE_PKGINFO_FILENAME')
+  else:
+    pkginfo_create_command = '/bin/echo no PkgInfo will be created' # noop
+
+  # Add the build step for the bundle.
+  p = env.Command(env.Dir(target),
+              [env.File('$BUNDLE_EXE'),
+               env.File('$BUNDLE_INFO_PLIST')] +
+              bundle_resources,
+              [SCons.Script.Delete('$TARGET'),
+               SCons.Script.Mkdir('$TARGET/Contents'),
+               SCons.Script.Mkdir('$TARGET/Contents/MacOS'),
+               SCons.Script.Mkdir('$TARGET/Contents/Resources'),
+               'cp -f $SOURCE $TARGET/Contents/MacOS',
+               'cp -f ${SOURCES[1]} $TARGET/Contents',
+               pkginfo_create_command,
+               'cp -rf ${SOURCES[2:]} $TARGET/Contents/Resources'])
+
+  # Add an alias for this target.
+  # This also allows the 'all_bundles' target to build me.
+  a = env.Alias(target, p)
+  for group in env['COMPONENT_BUNDLE_GROUPS']:
+    SCons.Script.Alias(group, a)
+
+  return env.Dir(target)
+
+def generate(env):
+  # NOTE: SCons requires the use of this name, which fails gpylint.
+  """SCons entry point for this tool."""
+
+  # Use g++
+  env.Tool('g++')
+  env.Tool('gcc')
+  env.Tool('gnulink')
+  env.Tool('ar')
+  env.Tool('as')
+  env.Tool('applelink')
+
+  # Declare bits
+  DeclareBit('mac', 'Target platform is mac.',
+             exclusive_groups=('target_platform'))
+  DeclareBit('posix', 'Target platform is posix.')
+  env.SetBits('mac', 'posix')
+
+  env.Replace(
+      TARGET_PLATFORM='MAC',
+      COMPONENT_PLATFORM_SETUP=ComponentPlatformSetup,
+  )
+
+  env.Append(
+      HOST_PLATFORMS=['MAC'],
+      CPPDEFINES=['OS_MACOSX=OS_MACOSX'],
+      BITS=['mac', 'posix'],
+
+      # Settings for debug
+      CCFLAGS_DEBUG=['-g'],
+      LINKFLAGS_DEBUG=['-g'],
+
+      # Settings for optimized
+      CCFLAGS_OPTIMIZED=['-O2'],
+
+      # Settings for component_builders
+      COMPONENT_LIBRARY_LINK_SUFFIXES=['.dylib', '.a'],
+      COMPONENT_LIBRARY_DEBUG_SUFFIXES=[],
+
+      # New 'all' target.  Helpful: "hammer -h" now lists it!
+      COMPONENT_BUNDLE_GROUPS=['all_bundles'],
+  )
+
+
+  # Set default values used by the Bundle pseudobuilder.
+  env.Replace(
+      BUNDLE_TYPE='APPL',
+      BUNDLE_STRING='${BUNDLE_TYPE}????',
+      BUNDLE_GENERATE_PKGINFO='echo "${BUNDLE_STRING}"',
+      BUNDLE_PKGINFO_FILENAME='PkgInfo',
+      BUNDLE_INFO_PLIST='Info.plist',
+  )
+
+  # Add the Bundle pseudobuilder.
+  env.AddMethod(BundlePseudoBuilder, 'Bundle')
+
+  # Add our target groups
+  AddTargetGroup('all_bundles', 'bundles can be built')