#!/usr/bin/env python
# pylint: disable=W0142,W0403,W0404,W0613,W0622,W0622,W0704,R0904,C0103,E0611
#
# copyright 2003-2022 LOGILAB S.A. (Paris, FRANCE), all rights reserved.
# contact http://www.logilab.fr/ -- mailto:contact@logilab.fr
#
# This file is part of the CubicWeb email cube.
#
# CubicWeb is free software: you can redistribute it and/or modify it under the
# terms of the GNU Lesser General Public License as published by the Free
# Software Foundation, either version 2.1 of the License, or (at your option)
# any later version.
#
# CubicWeb is distributed in the hope that it will be useful, but WITHOUT
# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
# FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public License for more
# details.
#
# You should have received a copy of the GNU Lesser General Public License along
# with CubicWeb.  If not, see <http://www.gnu.org/licenses/>.
"""Generic Setup script, takes package info from __pkginfo__.py file
"""
__docformat__ = "restructuredtext en"

import os
import sys
import shutil
from os import walk
from os.path import isdir, exists, join, dirname

try:
    if os.environ.get('NO_SETUPTOOLS'):
        raise ImportError()
    from setuptools import setup
    from setuptools.command import install_lib
    USE_SETUPTOOLS = 1
except ImportError:
    from distutils.core import setup
    from distutils.command import install_lib
    USE_SETUPTOOLS = 0

# load metadata from the __pkginfo__.py file so there is no risk of conflict
# see https://packaging.python.org/en/latest/single_source_version.html
base_dir = dirname(__file__)

pkginfo = {}
with open(join(base_dir, "__pkginfo__.py")) as f:
    exec(f.read(), pkginfo)

    
# get required metadatas
modname = pkginfo['modname']
version = pkginfo['version']
license = pkginfo['license']
description = pkginfo['description']
web = pkginfo['web']
author = pkginfo['author']
author_email = pkginfo['author_email']
classifiers = pkginfo['classifiers']

with open(join(base_dir, 'README.rst')) as f:
    long_description = f.read()

# get optional metadatas
distname = pkginfo.get('distname', modname)
scripts = pkginfo.get('scripts', ())
include_dirs = pkginfo.get('include_dirs', ())
data_files = pkginfo.get('data_files', None)
ext_modules = pkginfo.get('ext_modules', None)
dependency_links = pkginfo.get('dependency_links', ())
packages = pkginfo.get('packages', ())

if USE_SETUPTOOLS:
    requires = {}
    for entry in ("__depends__",): # "__recommends__"):
        requires.update(pkginfo.get(entry, {}))
    install_requires = [("%s %s" % (d, v and v or "")).strip()
                       for d, v in requires.items()]
else:
    install_requires = []

BASE_BLACKLIST = ('CVS', '.svn', '.hg', '.git', 'debian', 'dist', 'build')
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,
           verbose=True):
    """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 = join(directory, filename)
            dest = to_dir + src[len(from_dir):]
            if verbose:
                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 as ex:
        # file exists ?
        import errno
        if ex.errno != errno.EEXIST:
            raise
    walk(from_dir, make_mirror, None)


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)
        # manually install included directories if any
        if include_dirs:
            base = modname
            for directory in include_dirs:
                dest = join(self.install_dir, base, directory)
                export(directory, dest, verbose=False)

def install(**kwargs):
    """setup entry point"""
    if USE_SETUPTOOLS:
        if '--force-manifest' in sys.argv:
            sys.argv.remove('--force-manifest')
    if USE_SETUPTOOLS and install_requires:
        kwargs['install_requires'] = install_requires
        kwargs['dependency_links'] = dependency_links
    return setup(name = distname,
                 version = version,
                 license = license,
                 description = description,
                 long_description = long_description,
                 author = author,
                 author_email = author_email,
                 url = web,
                 scripts = ensure_scripts(scripts),
                 data_files = data_files,
                 ext_modules = ext_modules,
                 packages = packages,
                 cmdclass = {'install_lib': MyInstallLib},
                 **kwargs
                 )

if __name__ == '__main__' :
    install()