#!/usr/bin/env python3

# Symlink install flit & flit_core for development.

# Most projects can do the same with 'flit install --symlink'.

# But that doesn't work until Flit is installed, so we need some bootstrapping.

import argparse

import logging

import os

from pathlib import Path

import sys

my_dir = Path(__file__).parent

os.chdir(str(my_dir))

sys.path.insert(0, 'flit_core')

from flit_core import build_thyself

from flit_core.config import LoadedConfig

from flit.install import Installer

ap = argparse.ArgumentParser()

ap.add_argument('--user')

args = ap.parse_args()

logging.basicConfig(level=logging.INFO)

# Construct config for flit_core

core_config = LoadedConfig()

core_config.module = 'flit_core'

core_config.metadata = build_thyself.metadata_dict

core_config.reqs_by_extra['.none'] = build_thyself.metadata.requires_dist

install_kwargs = {'symlink': True}

if os.name == 'nt':

# Use .pth files instead of symlinking on Windows

install_kwargs = {'symlink': False, 'pth': True}

# Install flit_core

Installer(

my_dir / 'flit_core', core_config, user=args.user, **install_kwargs

).install()

print("Linked flit_core into site-packages.")

# Install flit

Installer.from_ini_path(

my_dir / 'pyproject.toml', user=args.user, **install_kwargs

).install()

print("Linked flit into site-packages.")