"""

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

refresh the project-boot.py script

-prerequisite:

- virtualenv

- python project-boot.py --unzip-setuptools --no-site-packages --clear --type-install=local <path_to_venv>

"""

import os

import subprocess

import re

import sys

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

base_dir = here

script_name = os.path.join(base_dir, 'project-boot.py')

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").replace("\\","/")

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

EXTRA_TEXT  = "URLS = { \n"

EXTRA_TEXT += "    'DISTRIBUTE' : { 'setup': 'distribute', 'url': 'http://pypi.python.org/packages/source/d/distribute/distribute-0.6.14.tar.gz', 'local': '"+ os.path.abspath(os.path.join(src_base,"distribute-0.6.14.tar.gz")).replace("\\","/")+"'},\n"

EXTRA_TEXT += "    'MERCURIAL' : { 'setup': 'distribute', 'url': 'http://pypi.python.org/packages/source/d/mercurial/mercurial-1.7.5.tar.gz', 'local': '"+ os.path.abspath(os.path.join(src_base,"mercurial-1.7.5.tar.gz")).replace("\\","/")+"'},\n"

EXTRA_TEXT += "}\n"

EXTRA_TEXT += "import sys\n"

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

EXTRA_TEXT += """

import shutil

import tarfile

import zipfile

import urllib

import platform

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')

    parser.add_option(

        '--ignore-packages',

        metavar='ignore_packages',

        dest='ignore_packages',

        default=None,

        help='list of comma separated keys for package to ignore')

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

    ignore_packages = []

    if options.ignore_packages :

        ignore_packages = options.ignore_packages.split(",")

    logger.indent += 2

    try:

        NORMAL_INSTALL = [ #(key,method, option_str, extra_env)

            ('DISTRIBUTE', 'pip', None, None),

            ('MERCURIAL', 'pip', None, None),

            ]

        for key, method, option_str, extra_env in NORMAL_INSTALL:

            if key not in ignore_packages:

                normal_install(key, method, option_str, extra_env, res_source_key, home_dir, tmp_dir)

        logger.notify("Clear source dir")

        shutil.rmtree(src_dir)

    finally:

        logger.indent -= 2

    script_dir = join(base_dir, bin_dir)

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

                  % join(script_dir, 'easy_install'))

def normal_install(key, method, option_str, extra_env, res_source_key, home_dir, tmp_dir):

    logger.notify("Install %s from %s with %s" % (key,URLS[key][res_source_key],method))

    if method == 'pip':

        if sys.platform == 'win32':

            args = [os.path.abspath(os.path.join(home_dir, 'Scripts', 'pip')), 'install', '-E', os.path.abspath(home_dir), URLS[key][res_source_key]]

        else:

            args = [os.path.abspath(os.path.join(home_dir, 'bin', 'pip')), 'install', '-E', os.path.abspath(home_dir), URLS[key][res_source_key]]

        if option_str :

            args.insert(4,option_str)

        call_subprocess(args,

                cwd=os.path.abspath(tmp_dir),

                filter_stdout=filter_python_develop,

                show_stdout=True,

                extra_env=extra_env)

    else:

        if sys.platform == 'win32':

            args = [os.path.abspath(os.path.join(home_dir, 'Scripts', 'easy_install')), URLS[key][res_source_key]]

        else:

            args = [os.path.abspath(os.path.join(home_dir, 'bin', 'easy_install')), URLS[key][res_source_key]]

        if option_str :

            args.insert(1,option_str)

        call_subprocess(args,

                cwd=os.path.abspath(tmp_dir),

                filter_stdout=filter_python_develop,

                show_stdout=True,

                extra_env=extra_env)

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()