## -*- Mode: python; py-indent-offset: 4; indent-tabs-mode: nil; coding: utf-8; -*-

import os

import sys

import shlex

import Params

import Object

import pproc as subprocess

Params.g_autoconfig = 1

# the following two variables are used by the target "waf dist"

VERSION = file("VERSION").read().strip()

APPNAME = 'ns'

# these variables are mandatory ('/' are converted automatically)

srcdir = '.'

blddir = 'build'

def set_options(opt):

    # options provided by the modules

    opt.tool_options('compiler_cxx')

    opt.add_option('--enable-gcov',

                   help=('Enable code coverage analysis'),

                   action="store_true", default=False,

                   dest='enable_gcov')

    opt.add_option('--lcov-report',

                   help=('Generate a code coverage report '

                         '(use this option at build time, not in configure)'),

                   action="store_true", default=False,

                   dest='lcov_report')

    opt.add_option('--doxygen',

                   help=('Run doxygen to generate html documentation from source comments'),

                   action="store_true", default=False,

                   dest='doxygen')

    opt.add_option('--run',

                   help=('Run a locally built program'),

                   type="string", default='', dest='run')

    opt.add_option('--shell',

                   help=('Run a shell with an environment suitably modified to run locally built programs'),

                   action="store_true", default=False,

                   dest='shell')

    # options provided in a script in a subdirectory named "src"

    opt.sub_options('src')

def configure(conf):

    if not conf.check_tool('compiler_cxx'):

        Params.fatal("No suitable compiler found")

    # create the second environment, set the variant and set its name

    variant_env = conf.env.copy()

    variant_name = Params.g_options.debug_level.lower()

    if Params.g_options.enable_gcov:

        variant_name += '-gcov'

        variant_env.append_value('CCFLAGS', '-fprofile-arcs')

        variant_env.append_value('CCFLAGS', '-ftest-coverage')

        variant_env.append_value('CXXFLAGS', '-fprofile-arcs')

        variant_env.append_value('CXXFLAGS', '-ftest-coverage')

        variant_env.append_value('LINKFLAGS', '-fprofile-arcs')

    conf.env['NS3_ACTIVE_VARIANT'] = variant_name

    variant_env['NS3_ACTIVE_VARIANT'] = variant_name

    variant_env.set_variant(variant_name)

    conf.set_env_name(variant_name, variant_env)

    conf.setenv(variant_name)

    variant_env.append_value('CXXDEFINES', 'RUN_SELF_TESTS')

    if 'debug' in Params.g_options.debug_level.lower():

        variant_env.append_value('CXXDEFINES', 'NS3_DEBUG_ENABLE')

        variant_env.append_value('CXXDEFINES', 'NS3_ASSERT_ENABLE')

    if sys.platform == 'win32':

        variant_env.append_value("LINKFLAGS", "-Wl,--enable-runtime-pseudo-reloc")

    conf.sub_config('src')

def build(bld):

    variant_name = bld.env_of_name('default')['NS3_ACTIVE_VARIANT']

    variant_env = bld.env_of_name(variant_name)

    bld.m_allenvs['default'] = variant_env # switch to the active variant

    # process subfolders from here

    bld.add_subdirs('src')

    bld.add_subdirs('samples utils examples')

def shutdown():

    #import UnitTest

    #ut = UnitTest.unit_test()

    #ut.change_to_testfile_dir = True

    #ut.want_to_see_test_output = True

    #ut.want_to_see_test_error = True

    #ut.run()

    #ut.print_results()

    if Params.g_commands['check']:

        run_program('run-tests')

    if Params.g_options.lcov_report:

        lcov_report()

    if Params.g_options.doxygen:

        doxygen()

    if Params.g_options.run:

        run_program(Params.g_options.run)

    elif Params.g_options.shell:

        run_shell()

def _find_program(program_name):

    for obj in Object.g_allobjs:

        if obj.target == program_name:

            return obj

    raise ValueError("progam '%s' not found" % (program_name,))

def _run_argv(argv):

    env = Params.g_build.env_of_name('default')

    if sys.platform == 'linux2':

        pathvar = 'LD_LIBRARY_PATH'

        pathsep = ':'

    elif sys.platform == 'darwin':

        pathvar = 'DYLD_LIBRARY_PATH'

        pathsep = ':'

    elif sys.platform == 'win32':

        pathvar = 'PATH'

        pathsep = ';'

    else:

        Params.warning(("Don't know how to configure "

                        "dynamic library path for the platform '%s'") % (sys.platform,))

        pathvar = None

        pathsep = None

    os_env = dict(os.environ)

    if pathvar is not None:

        if pathvar in os_env:

            os_env[pathvar] = pathsep.join([os_env[pathvar]] + list(env['NS3_MODULE_PATH']))

        else:

            os_env[pathvar] = pathsep.join(list(env['NS3_MODULE_PATH']))

    retval = subprocess.Popen(argv, env=os_env).wait()

    if retval:

        raise SystemExit(retval)

def run_program(program_string):

    env = Params.g_build.env_of_name('default')

    argv = shlex.split(program_string)

    program_name = argv[0]

    try:

        program_obj = _find_program(program_name)

    except ValueError:

        Params.fatal("progam '%s' not found" % (program_name,))

    try:

        program_node, = program_obj.m_linktask.m_outputs

    except AttributeError:

        Params.fatal("%s does not appear to be a program" % (program_name,))

    execvec = [program_node.abspath(env)] + argv[1:]

    return _run_argv(execvec)

def run_shell():

    if sys.platform == 'win32':

        shell = os.environ.get("COMSPEC", "cmd.exe")

    else:

        shell = os.environ.get("SHELL", "/bin/sh")

    _run_argv([shell])

def doxygen():

    doxygen_config = os.path.join('doc', 'doxygen.conf')

    if subprocess.Popen(['doxygen', doxygen_config]).wait():

        raise SystemExit(1)

def lcov_report():

    env = Params.g_build.env_of_name('default')

    variant_name = env['NS3_ACTIVE_VARIANT']

    if 'gcov' not in variant_name:

        Params.fatal("project not configured for code coverage;"

                     " reconfigure with --enable-gcov")

    os.chdir(blddir)

    try:

        lcov_report_dir = os.path.join(variant_name, 'lcov-report')

        create_dir_command = "rm -rf " + lcov_report_dir

        create_dir_command += " && mkdir " + lcov_report_dir + ";"

        if subprocess.Popen(create_dir_command, shell=True).wait():

            raise SystemExit(1)

        info_file = os.path.join(lcov_report_dir, variant_name + '.info')

        lcov_command = "../utils/lcov/lcov -c -d . -o " + info_file

        lcov_command += " --source-dirs=" + os.getcwd()

        lcov_command += ":" + os.path.join(

            os.getcwd(), variant_name, 'include')

        if subprocess.Popen(lcov_command, shell=True).wait():

            raise SystemExit(1)

        genhtml_command = "../utils/lcov/genhtml -o " + lcov_report_dir

        genhtml_command += " " + info_file

        if subprocess.Popen(genhtml_command, shell=True).wait():

            raise SystemExit(1)

    finally:

        os.chdir("..")