"""

Call this like ``python create_python_env.py``; it will

-prerequisite:

- virtualenv

- distribute

- psycopg2 requires the PostgreSQL libpq libraries and the pg_config utility

- virtualenv --distribute --no-site-packages venv

"""

import os

import subprocess

import re

import sys

here = os.path.dirname(os.path.abspath(__file__))

base_dir = here

import virtualenv

# things to install

# - psycopg2 -> pip

# - PIL -> pip

# - pyxml -> pip

# - 4Suite-xml - easy_install ftp://ftp.4suite.org/pub/4Suite/4Suite-XML-1.0.2.tar.bz2

# - pylucene  - script

src_base = os.path.join(here,"res","src")

lib_path = os.path.abspath(os.path.join(here,"res","lib"))

patch_path = os.path.abspath(os.path.join(here,"res","patch"))

EXTRA_TEXT  = "URLS = { \n"

EXTRA_TEXT += "    'DISTRIBUTE' : { 'setup': 'distribute', 'url': 'http://pypi.python.org/packages/source/d/distribute/distribute-0.6.13.tar.gz', 'local': '"+ os.path.abspath(os.path.join(src_base,"distribute-0.6.13.tar.gz"))+"'},\n"

EXTRA_TEXT += "    'PSYCOPG2' : { 'setup': 'psycopg2','url': 'http://initd.org/pub/software/psycopg/psycopg2-2.2.1.tar.gz', 'local': '"+ os.path.abspath(os.path.join(src_base,"psycopg2-2.2.1.tar.gz"))+"'},\n"

EXTRA_TEXT += "    'FOURSUITE_XML' : { 'setup': '4Suite-XML', 'url': 'ftp://ftp.4suite.org/pub/4Suite/4Suite-XML-1.0.2.tar.bz2', 'local': '"+ os.path.abspath(os.path.join(src_base,"4Suite-XML-1.0.2.tar.bz2"))+"'},\n"

EXTRA_TEXT += "    'PYLUCENE' : { 'setup': 'http://apache.crihan.fr/dist/lucene/pylucene/pylucene-3.0.1-1-src.tar.gz', 'url': 'http://apache.crihan.fr/dist/lucene/pylucene/pylucene-3.0.1-1-src.tar.gz', 'local': '"+ os.path.abspath(os.path.join(src_base,"pylucene-3.0.1-1-src.tar.gz"))+"'},\n"

EXTRA_TEXT += "    'PIL' : { 'setup': 'pil', 'url': 'http://effbot.org/downloads/Imaging-1.1.7.tar.gz', 'local': '"+ os.path.abspath(os.path.join(src_base,"Imaging-1.1.7.tar.gz"))+"'},\n"

EXTRA_TEXT += "    'PYXML' : { 'setup': 'http://sourceforge.net/projects/pyxml/files/pyxml/0.8.4/PyXML-0.8.4.tar.gz/download', 'url': 'http://sourceforge.net/projects/pyxml/files/pyxml/0.8.4/PyXML-0.8.4.tar.gz/download', 'local': '"+ os.path.abspath(os.path.join(src_base,"PyXML-0.8.4.tar.gz"))+"', 'patch': '"+os.path.join(patch_path,"pyxml.patch")+"'},\n"

EXTRA_TEXT += "}\n"

EXTRA_TEXT += "import sys\n"

EXTRA_TEXT += "sys.path.append('"+lib_path+"')\n"

EXTRA_TEXT += """

import shutil

import tarfile

import urllib

import platform

import patch

INDEX_URL = 'http://pypi.python.org/simple/'

def extend_parser(parser):

    parser.add_option(

        '--index-url',

        metavar='INDEX_URL',

        dest='index_url',

        default='',

        help='base URL of Python Package Index')

    parser.add_option(

        '--type-install',

        metavar='type_install',

        dest='type_install',

        default='local',

        help='type install : local, url, setup')

def adjust_options(options, args):

    pass

def after_install(options, home_dir):

    home_dir, lib_dir, inc_dir, bin_dir = path_locations(home_dir)

    base_dir = os.path.dirname(home_dir)

    src_dir = join(home_dir, 'src')

    tmp_dir = join(home_dir, 'tmp')

    ensure_dir(src_dir)

    ensure_dir(tmp_dir)

    system_str = platform.system()

    res_source_key = options.type_install

    logger.indent += 2

    try:

        #get pylucene

        logger.notify("Get Pylucene from %s " % URLS['PYLUCENE'][res_source_key])

        pylucene_src = os.path.join(src_dir,"pylucene.tar.gz")

        urllib.urlretrieve(URLS['PYLUCENE'][res_source_key], pylucene_src)

        tf = tarfile.open(pylucene_src,'r:gz')

        pylucene_base_path = os.path.join(src_dir,"pylucene") 

        logger.notify("Extract Pylucene to %s " % pylucene_base_path)

        tf.extractall(pylucene_base_path)

        tf.close()

        pylucene_src_path = os.path.join(pylucene_base_path, os.listdir(pylucene_base_path)[0])

        jcc_src_path = os.path.abspath(os.path.join(pylucene_src_path,"jcc"))

        #install jcc

        #patch for linux

        if system_str == 'Linux' :

            olddir = os.getcwd()

            logger.notify("Patch jcc : %s " % (patch_dest_path))

            os.chdir(patch_dest_path)

            p = patch.fromfile(os.path.join(jcc_src_path,"jcc","patches","patch.43.0.6c11"))

            p.apply()

            os.chdir(olddir)

        logger.notify("Install jcc")

        call_subprocess([os.path.abspath(os.path.join(home_dir, 'bin', 'python')), 'setup.py', 'install'],

                        cwd=jcc_src_path,

                        filter_stdout=filter_python_develop,

                        show_stdout=True)

        #install pylucene

        logger.notify("Install pylucene")

        #modify makefile

        makefile_path = os.path.join(pylucene_src_path,"Makefile")

        logger.notify("Modify makefile %s " % makefile_path)

        shutil.move( makefile_path, makefile_path+"~" )

        destination= open( makefile_path, "w" )

        source= open( makefile_path+"~", "r" )

        destination.write("PREFIX_PYTHON="+os.path.abspath(home_dir)+"\\n")

        destination.write("ANT=ant\\n")

        destination.write("PYTHON=$(PREFIX_PYTHON)/bin/python\\n")

        if system_str == "Darwin":

            if sys.version_info >= (2,6):

                destination.write("JCC=$(PYTHON) -m jcc.__main__ --shared --arch x86_64 --arch i386\\n")

            else:

                destination.write("JCC=$(PYTHON) -m jcc --shared --arch x86_64 --arch i386\\n")

            destination.write("NUM_FILES=2\\n")

        elif system_str == "Windows":

            destination.write("JCC=$(PYTHON) -m jcc.__main__ --shared --arch x86_64 --arch i386\\n")

            destination.write("NUM_FILES=2\\n")

        else:

            destination.write("NUM_FILES=2\\n")

        for line in source:

            destination.write( line )

        source.close()

        destination.close()

        os.remove(makefile_path+"~" )

        logger.notify("pylucene make")

        call_subprocess(['make'],

                        cwd=os.path.abspath(pylucene_src_path),

                        filter_stdout=filter_python_develop,

                        show_stdout=True)

        logger.notify("pylucene make install")

        call_subprocess(['make', 'install'],

                        cwd=os.path.abspath(pylucene_src_path),

                        filter_stdout=filter_python_develop,

                        show_stdout=True)

        logger.notify("PyXML install : %s " % URLS['PYXML'][res_source_key])

        if sys.version_info >= (2,6):

            logger.notify("PyXML -> python version >= 2.6 : patching")

            pyxml_src = os.path.join(src_dir,"pyxml.tar.gz")

            urllib.urlretrieve(URLS['PYXML'][res_source_key], pyxml_src)

            logger.notify("PyXML -> python version >= 2.6 : extract archive")

            tf = tarfile.open(pyxml_src,'r:gz')

            pyxml_base_path = os.path.join(src_dir,"pyxml") 

            tf.extractall(pyxml_base_path)

            tf.close()

            #patch

            pyxml_version = os.listdir(pyxml_base_path)[0]            

            pyxml_path = os.path.join(pyxml_base_path, pyxml_version)

            olddir = os.getcwd()

            os.chdir(pyxml_path)

            logger.notify("PyXML -> python version >= 2.6 : do patch %s : %s " % (pyxml_path, URLS['PYXML']['patch']))

            p = patch.fromfile(URLS['PYXML']['patch'])

            p.apply()

            os.chdir(olddir)

            logger.notify("PyXML -> python version >= 2.6 : install")

            call_subprocess([os.path.abspath(os.path.join(home_dir, 'bin', 'pip')), 'install', '-E', os.path.abspath(home_dir), '--build='+os.path.abspath(pyxml_base_path), '--no-download', pyxml_version],

                    cwd=os.path.abspath(tmp_dir),

                    filter_stdout=filter_python_develop,

                    show_stdout=True)

        else:

            call_subprocess([os.path.abspath(os.path.join(home_dir, 'bin', 'pip')), 'install', '-E', os.path.abspath(home_dir), URLS['PYXML'][res_source_key]],

                    cwd=os.path.abspath(tmp_dir),

                    filter_stdout=filter_python_develop,

                    show_stdout=True)

        logger.notify("Install Distribute from %s" % URLS['DISTRIBUTE'][res_source_key])

        call_subprocess([os.path.abspath(os.path.join(home_dir, 'bin', 'pip')), 'install', '-E', os.path.abspath(home_dir), URLS['DISTRIBUTE'][res_source_key]],

                        cwd=os.path.abspath(tmp_dir),

                        filter_stdout=filter_python_develop,

                        show_stdout=True)

        logger.notify("Install Psycopg2 from %s" % URLS['PSYCOPG2'][res_source_key])

        call_subprocess([os.path.abspath(os.path.join(home_dir, 'bin', 'pip')), 'install', '-E', os.path.abspath(home_dir), URLS['PSYCOPG2'][res_source_key]],

                        cwd=os.path.abspath(tmp_dir),

                        filter_stdout=filter_python_develop,

                        show_stdout=True)

        logger.notify("Install PIL from %s" % URLS['PIL'][res_source_key])

        call_subprocess([os.path.abspath(os.path.join(home_dir, 'bin', 'pip')), 'install', '-E', os.path.abspath(home_dir), URLS['PIL'][res_source_key]],

                        cwd=os.path.abspath(tmp_dir),

                        filter_stdout=filter_python_develop,

                        show_stdout=True)

        logger.notify("Install 4Suite-XML from %s" % URLS['FOURSUITE_XML'][res_source_key])

        call_subprocess([os.path.abspath(os.path.join(home_dir, 'bin', 'easy_install')), URLS['FOURSUITE_XML'][res_source_key]],

                        cwd=os.path.abspath(tmp_dir),

                        filter_stdout=filter_python_develop,

                        show_stdout=True)

        logger.notify("Clear source dir")

        shutil.rmtree(src_dir)

    finally:

        logger.indent -= 2

    script_dir = join(base_dir, 'bin')

    logger.notify('Run "%s Package" to install new packages that provide builds'

                  % join(script_dir, 'easy_install'))

def ensure_dir(dir):

    if not os.path.exists(dir):

        logger.notify('Creating directory %s' % dir)

        os.makedirs(dir)

def filter_python_develop(line):

    if not line.strip():

        return Logger.DEBUG

    for prefix in ['Searching for', 'Reading ', 'Best match: ', 'Processing ',

                   'Moving ', 'Adding ', 'running ', 'writing ', 'Creating ',

                   'creating ', 'Copying ']:

        if line.startswith(prefix):

            return Logger.DEBUG

    return Logger.NOTIFY

"""

def main():

    python_version = ".".join(map(str,sys.version_info[0:2]))

    text = virtualenv.create_bootstrap_script(EXTRA_TEXT, python_version=python_version)

    if os.path.exists(script_name):

        f = open(script_name)

        cur_text = f.read()

        f.close()

    else:

        cur_text = ''

    print 'Updating %s' % script_name

    if cur_text == 'text':

        print 'No update'

    else:

        print 'Script changed; updating...'

        f = open(script_name, 'w')

        f.write(text)

        f.close()

if __name__ == '__main__':

    main()