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

import os

import sys

import Params

import Object

import Action

import Common

import shutil

import pproc as subprocess

Params.g_autoconfig = 1

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

VERSION = '3.0.1'

APPNAME = 'ns-3-waf'

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

srcdir = '.'

blddir = 'build'

class Ns3Header(Object.genobj):

    """A set of NS-3 header files"""

    def __init__(self, env=None):

        Object.genobj.__init__(self, 'other')

        self.inst_var = 'INCLUDEDIR'

        self.inst_dir = 'ns3'

        self.env = env

        if not self.env:

            self.env = Params.g_build.m_allenvs['default']

    def apply(self):

        ns3_dir_node = Params.g_build.m_srcnode.find_dir("ns3")

        inputs = []

        outputs = []

        for filename in self.to_list(self.source):

            src_node = self.path.find_source(filename)

            if src_node is None:

                Params.fatal("source ns3 header file %s not found" % (filename,))

            dst_node = ns3_dir_node.find_build(os.path.basename(filename))

            assert dst_node is not None

            inputs.append(src_node)

            outputs.append(dst_node)

        task = self.create_task('ns3_headers', self.env, 1)

        task.set_inputs(inputs)

        task.set_outputs(outputs)

    def install(self):

        for i in self.m_tasks:

            current = Params.g_build.m_curdirnode

            lst = map(lambda a: a.relpath_gen(current), i.m_outputs)

            Common.install_files(self.inst_var, self.inst_dir, lst)

def _ns3_headers_inst(task):

    assert len(task.m_inputs) == len(task.m_outputs)

    inputs = [node.srcpath(task.m_env) for node in task.m_inputs]

    outputs = [node.bldpath(task.m_env) for node in task.m_outputs]

    for src, dst in zip(inputs, outputs):

        try:

            os.chmod(dst, 0600)

        except OSError:

            pass

        shutil.copy2(src, dst)

        ## make the headers in builddir read-only, to prevent

        ## accidental modification

        os.chmod(dst, 0400)

    return 0

def init():

    Object.register('ns3header', Ns3Header)

    Action.Action('ns3_headers', func=_ns3_headers_inst, color='BLUE')

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')

    # 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():

    #ut.print_results()

    if Params.g_options.lcov_report:

        lcov_report()

    if Params.g_options.doxygen:

        doxygen()

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("..")