# encoding: utf-8
"""
This module defines the things that are used in setup.py for building JupyterLab
This includes:
    * Functions for finding things like packages, package data, etc.
    * A function for checking dependencies.
"""

# Copyright (c) Jupyter Development Team.
# Distributed under the terms of the Modified BSD License.

import os
import pipes
import sys

from distutils import log
from setuptools.command.bdist_egg import bdist_egg
from subprocess import check_call


if sys.platform == 'win32':
    from subprocess import list2cmdline
else:
    def list2cmdline(cmd_list):
        return ' '.join(map(pipes.quote, cmd_list))


here = os.path.dirname(os.path.abspath(__file__))
is_repo = os.path.exists(os.path.join(here, '.git'))


def run(cmd, *args, **kwargs):
    """Echo a command before running it"""
    log.info('> ' + list2cmdline(cmd))
    kwargs['shell'] = (sys.platform == 'win32')
    return check_call(cmd, *args, **kwargs)


#---------------------------------------------------------------------------
# Find packages
#---------------------------------------------------------------------------

def find_packages():
    """
    Find all of the packages.
    """
    packages = []
    for dir, subdirs, files in os.walk('jupyterlab'):
        package = dir.replace(os.path.sep, '.')
        if '__init__.py' not in files:
            # not a package
            continue
        packages.append(package)
    return packages


#---------------------------------------------------------------------------
# Find package data
#---------------------------------------------------------------------------

def find_package_data():
    """
    Find package_data.
    """
    return {
        'jupyterlab': ['static/*', 'lab.html', 'package.json', 'index.template.js', 'webpack.config.js']
    }


class bdist_egg_disabled(bdist_egg):
    """Disabled version of bdist_egg
    Prevents setup.py install performing setuptools' default easy_install,
    which it should never ever do.
    """
    def run(self):
        sys.exit("Aborting implicit building of eggs. Use `pip install .` to install from source.")