#!/usr/bin/env python

# pylint: disable-msg=W0142,W0403,W0404,W0613,W0622,W0622,W0704,R0904,C0103,E0611

#

#

# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS

#

import os

import sys

import shutil

from distutils.core import setup

from distutils.command import install_lib

from os.path import isdir, exists, join, walk

# import required features

from __pkginfo__ import modname, version, license, short_desc, long_desc, \

     web, author, author_email

# import optional features

try:

    from __pkginfo__ import distname

except ImportError:

    distname = modname

try:

    from __pkginfo__ import scripts

except ImportError:

    scripts = []

try:

    from __pkginfo__ import data_files

except ImportError:

    data_files = None

try:

    from __pkginfo__ import subpackage_of

except ImportError:

    subpackage_of = None

try:

    from __pkginfo__ import include_dirs

except ImportError:

    include_dirs = []

try:

    from __pkginfo__ import ext_modules

except ImportError:

    ext_modules = None

BASE_BLACKLIST = ('CVS', 'debian', 'dist', 'build', '__buildlog')

IGNORED_EXTENSIONS = ('.pyc', '.pyo', '.elc')

def ensure_scripts(linux_scripts):

    """

    Creates the proper script names required for each platform

    (taken from 4Suite)

    """

    from distutils import util

    if util.get_platform()[:3] == 'win':

        scripts_ = [script + '.bat' for script in linux_scripts]

    else:

        scripts_ = linux_scripts

    return scripts_

def get_packages(directory, prefix):

    """return a list of subpackages for the given directory

    """

    result = []

    for package in os.listdir(directory):

        absfile = join(directory, package)

        if isdir(absfile):

            if exists(join(absfile, '__init__.py')) or \

                   package in ('test', 'tests'):

                if prefix:

                    result.append('%s.%s' % (prefix, package))

                else:

                    result.append(package)

                result += get_packages(absfile, result[-1])

    return result

def export(from_dir, to_dir,

           blacklist=BASE_BLACKLIST,

           ignore_ext=IGNORED_EXTENSIONS):

    """make a mirror of from_dir in to_dir, omitting directories and files

    listed in the black list

    """

    def make_mirror(arg, directory, fnames):

        """walk handler"""

        for norecurs in blacklist:

            try:

                fnames.remove(norecurs)

            except ValueError:

                pass

        for filename in fnames:

            # don't include binary files

            if filename[-4:] in ignore_ext:

                continue

            if filename[-1] == '~':

                continue

            src = '%s/%s' % (directory, filename)

            dest = to_dir + src[len(from_dir):]

            print >> sys.stderr, src, '->', dest

            if os.path.isdir(src):

                if not exists(dest):

                    os.mkdir(dest)

            else:

                if exists(dest):

                    os.remove(dest)

                shutil.copy2(src, dest)

    try:

        os.mkdir(to_dir)

    except OSError, ex:

        # file exists ?

        import errno

        if ex.errno != errno.EEXIST:

            raise

    walk(from_dir, make_mirror, None)

EMPTY_FILE = '"""generated file, don\'t modify or your data will be lost"""\n'

class MyInstallLib(install_lib.install_lib):

    """extend install_lib command to handle  package __init__.py and

    include_dirs variable if necessary

    """

    def run(self):

        """overridden from install_lib class"""

        install_lib.install_lib.run(self)

        # create Products.__init__.py if needed

        if subpackage_of:

            product_init = join(self.install_dir, subpackage_of, '__init__.py')

            if not exists(product_init):

                self.announce('creating %s' % product_init)

                stream = open(product_init, 'w')

                stream.write(EMPTY_FILE)

                stream.close()

        # manually install included directories if any

        if include_dirs:

            if subpackage_of:

                base = join(subpackage_of, modname)

            else:

                base = modname

            for directory in include_dirs:

                dest = join(self.install_dir, base, directory)

                export(directory, dest)

def install(**kwargs):

    """setup entry point"""

    if subpackage_of:

        package = subpackage_of + '.' + modname

        kwargs['package_dir'] = {package : '.'}

        packages = [package] + get_packages(os.getcwd(), package)

    else:

        kwargs['package_dir'] = {modname : '.'}

        packages = [modname] + get_packages(os.getcwd(), modname)

    kwargs['packages'] = packages

    return setup(name = distname,

                 version = version,

                 license =license,

                 description = short_desc,

                 long_description = long_desc,

                 author = author,

                 author_email = author_email,

                 url = web,

                 scripts = ensure_scripts(scripts),

                 data_files=data_files,

                 ext_modules=ext_modules,

                 cmdclass={'install_lib': MyInstallLib},

                 **kwargs

                 )

if __name__ == '__main__' :

    install()