# -*- mode:python -*-

# Copyright (c) 2004-2005 The Regents of The University of Michigan
# 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 the copyright holders 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.
#
# Authors: Steve Reinhardt
#          Nathan Binkert

import os, os.path, re, sys
from zipfile import PyZipFile

# handy function for path joins
def join(*args):
    return os.path.normpath(os.path.join(*args))

Import('env')

# This SConscript is in charge of collecting .py files and generating
# a zip archive that is appended to the m5 binary.

# List of files & directories to include in the zip file.  To include
# a package, list only the root directory of the package, not any
# internal .py files (else they will get the path stripped off when
# they are imported into the zip file).
pyzip_files = []

# List of additional files on which the zip archive depends, but which
# are not included in pyzip_files... i.e. individual .py files within
# a package.
pyzip_dep_files = []

# Add the specified package to the zip archive.  Adds the directory to
# pyzip_files and all included .py files to pyzip_dep_files.
def addPkg(pkgdir):
    pyzip_files.append(pkgdir)
    origdir = os.getcwd()
    srcdir = join(Dir('.').srcnode().abspath, pkgdir)
    os.chdir(srcdir)
    for path, dirs, files in os.walk('.'):
        for i,dir in enumerate(dirs):
            if dir == 'SCCS':
                del dirs[i]
                break

        for f in files:
            if f.endswith('.py'):
                pyzip_dep_files.append(join(pkgdir, path, f))

    os.chdir(origdir)

# Generate Python file that contains a dict specifying the current
# build_env flags.
def MakeDefinesPyFile(target, source, env):
    f = file(str(target[0]), 'w')
    print >>f, "m5_build_env = ", source[0]
    f.close()

optionDict = dict([(opt, env[opt]) for opt in env.ExportOptions])
env.Command('m5/defines.py', Value(optionDict), MakeDefinesPyFile)

def MakeInfoPyFile(target, source, env):
    f = file(str(target[0]), 'w')
    for src in source:
        data = ''.join(file(src.srcnode().abspath, 'r').xreadlines())
        print >>f, "%s = %s" % (src, repr(data))
    f.close()

env.Command('m5/info.py',
            [ '#/AUTHORS', '#/LICENSE', '#/README', '#/RELEASE_NOTES' ],
            MakeInfoPyFile)

# Now specify the packages & files for the zip archive.
addPkg('m5')
pyzip_files.append('m5/defines.py')
pyzip_files.append('m5/info.py')
pyzip_files.append(join(env['ROOT'], 'util/pbs/jobfile.py'))
pyzip_files.append(join(env['ROOT'], 'src/base/traceflags.py'))

swig_modules = []
def swig_it(module):
    env.Command(['swig/%s_wrap.cc' % module, 'm5/internal/%s.py' % module],
                'swig/%s.i' % module,
                '$SWIG $SWIGFLAGS -outdir ${TARGETS[1].dir} '
                '-o ${TARGETS[0]} $SOURCES')
    swig_modules.append(module)

swig_it('main')
swig_it('debug')
swig_it('event')
swig_it('random')
swig_it('stats')
swig_it('trace')

# Automatically generate m5/internals/__init__.py
def MakeInternalsInit(target, source, env):
    f = file(str(target[0]), 'w')
    for m in swig_modules:
        print >>f, 'import %s' % m
    f.close()

swig_py_files = [ 'm5/internal/%s.py' % m for m in swig_modules ]
env.Command('m5/internal/__init__.py', swig_py_files, MakeInternalsInit)
pyzip_dep_files.append('m5/internal/__init__.py')

def MakeSwigInit(target, source, env):
    f = file(str(target[0]), 'w')
    print >>f, 'extern "C" {'
    for m in swig_modules:
        print >>f, '    void init_%s();' % m
    print >>f, '}'
    print >>f, 'void init_swig() {'
    for m in swig_modules:
        print >>f, '    init_%s();' % m
    print >>f, '}'
    f.close()

swig_cc_files = [ 'swig/%s_wrap.cc' % m for m in swig_modules ]
env.Command('swig/init.cc', swig_cc_files, MakeSwigInit)

# Action function to build the zip archive.  Uses the PyZipFile module
# included in the standard Python library.
def buildPyZip(target, source, env):
    pzf = PyZipFile(str(target[0]), 'w')
    for s in source:
        pzf.writepy(str(s))

# Add the zip file target to the environment.
env.Command('m5py.zip', pyzip_files, buildPyZip)
env.Depends('m5py.zip', pyzip_dep_files)