xserver and mesa git update 28-12-2010

1 files changed, 169 insertions, 0 deletions

diff --git a/mesalib/scons/custom.py b/mesalib/scons/custom.py
new file mode 100644
index 000000000..457a02011
--- /dev/null
+++ b/mesalib/scons/custom.py
@@ -0,0 +1,169 @@
+"""custom

+

+Custom builders and methods.

+

+"""

+

+#

+# Copyright 2008 Tungsten Graphics, Inc., Cedar Park, Texas.

+# All Rights Reserved.

+#

+# Permission is hereby granted, free of charge, to any person obtaining a

+# copy of this software and associated documentation files (the

+# "Software"), to deal in the Software without restriction, including

+# without limitation the rights to use, copy, modify, merge, publish,

+# distribute, sub license, and/or sell copies of the Software, and to

+# permit persons to whom the Software is furnished to do so, subject to

+# the following conditions:

+#

+# The above copyright notice and this permission notice (including the

+# next paragraph) shall be included in all copies or substantial portions

+# of the Software.

+#

+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS

+# OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF

+# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.

+# IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR

+# ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,

+# TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE

+# SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

+#

+

+

+import os

+import os.path

+import re

+

+import SCons.Action

+import SCons.Builder

+import SCons.Scanner

+

+import fixes

+

+

+def quietCommandLines(env):

+    # Quiet command lines

+    # See also http://www.scons.org/wiki/HidingCommandLinesInOutput

+    env['ASCOMSTR'] = "  Assembling $SOURCE ..."

+    env['ASPPCOMSTR'] = "  Assembling $SOURCE ..."

+    env['CCCOMSTR'] = "  Compiling $SOURCE ..."

+    env['SHCCCOMSTR'] = "  Compiling $SOURCE ..."

+    env['CXXCOMSTR'] = "  Compiling $SOURCE ..."

+    env['SHCXXCOMSTR'] = "  Compiling $SOURCE ..."

+    env['ARCOMSTR'] = "  Archiving $TARGET ..."

+    env['RANLIBCOMSTR'] = "  Indexing $TARGET ..."

+    env['LINKCOMSTR'] = "  Linking $TARGET ..."

+    env['SHLINKCOMSTR'] = "  Linking $TARGET ..."

+    env['LDMODULECOMSTR'] = "  Linking $TARGET ..."

+    env['SWIGCOMSTR'] = "  Generating $TARGET ..."

+    env['CODEGENCOMSTR'] = "  Generating $TARGET ..."

+

+

+def createConvenienceLibBuilder(env):

+    """This is a utility function that creates the ConvenienceLibrary

+    Builder in an Environment if it is not there already.

+

+    If it is already there, we return the existing one.

+

+    Based on the stock StaticLibrary and SharedLibrary builders.

+    """

+

+    try:

+        convenience_lib = env['BUILDERS']['ConvenienceLibrary']

+    except KeyError:

+        action_list = [ SCons.Action.Action("$ARCOM", "$ARCOMSTR") ]

+        if env.Detect('ranlib'):

+            ranlib_action = SCons.Action.Action("$RANLIBCOM", "$RANLIBCOMSTR")

+            action_list.append(ranlib_action)

+

+        convenience_lib = SCons.Builder.Builder(action = action_list,

+                                  emitter = '$LIBEMITTER',

+                                  prefix = '$LIBPREFIX',

+                                  suffix = '$LIBSUFFIX',

+                                  src_suffix = '$SHOBJSUFFIX',

+                                  src_builder = 'SharedObject')

+        env['BUILDERS']['ConvenienceLibrary'] = convenience_lib

+

+    return convenience_lib

+

+

+# TODO: handle import statements with multiple modules

+# TODO: handle from import statements

+import_re = re.compile(r'^import\s+(\S+)$', re.M)

+

+def python_scan(node, env, path):

+    # http://www.scons.org/doc/0.98.5/HTML/scons-user/c2781.html#AEN2789

+    contents = node.get_contents()

+    source_dir = node.get_dir()

+    imports = import_re.findall(contents)

+    results = []

+    for imp in imports:

+        for dir in path:

+            file = os.path.join(str(dir), imp.replace('.', os.sep) + '.py')

+            if os.path.exists(file):

+                results.append(env.File(file))

+                break

+            file = os.path.join(str(dir), imp.replace('.', os.sep), '__init__.py')

+            if os.path.exists(file):

+                results.append(env.File(file))

+                break

+    return results

+

+python_scanner = SCons.Scanner.Scanner(function = python_scan, skeys = ['.py'])

+

+

+def code_generate(env, script, target, source, command):

+    """Method to simplify code generation via python scripts.

+

+    http://www.scons.org/wiki/UsingCodeGenerators

+    http://www.scons.org/doc/0.98.5/HTML/scons-user/c2768.html

+    """

+

+    # We're generating code using Python scripts, so we have to be

+    # careful with our scons elements.  This entry represents

+    # the generator file *in the source directory*.

+    script_src = env.File(script).srcnode()

+

+    # This command creates generated code *in the build directory*.

+    command = command.replace('$SCRIPT', script_src.path)

+    action = SCons.Action.Action(command, "$CODEGENCOMSTR")

+    code = env.Command(target, source, action)

+

+    # Explicitly mark that the generated code depends on the generator,

+    # and on implicitly imported python modules

+    path = (script_src.get_dir(),)

+    deps = [script_src]

+    deps += script_src.get_implicit_deps(env, python_scanner, path)

+    env.Depends(code, deps)

+

+    # Running the Python script causes .pyc files to be generated in the

+    # source directory.  When we clean up, they should go too. So add side

+    # effects for .pyc files

+    for dep in deps:

+        pyc = env.File(str(dep) + 'c')

+        env.SideEffect(pyc, code)

+

+    return code

+

+

+def createCodeGenerateMethod(env):

+    env.Append(SCANNERS = python_scanner)

+    env.AddMethod(code_generate, 'CodeGenerate')

+

+

+def generate(env):

+    """Common environment generation code"""

+

+    if env.get('quiet', True):

+        quietCommandLines(env)

+

+    # Custom builders and methods

+    createConvenienceLibBuilder(env)

+    createCodeGenerateMethod(env)

+

+    # for debugging

+    #print env.Dump()

+

+

+def exists(env):

+    return 1