1 """ 2 If setuptools is not already installed in the environment, it's not possible 3 to invoke setuptools' own commands. This routine will bootstrap this local 4 environment by creating a minimal egg-info directory and then invoking the 5 egg-info command to flesh out the egg-info directory. 6 """ 7 8 from __future__ import unicode_literals 9 10 import os 11 import sys 12 import textwrap 13 import subprocess 14 import io 15 16 17 minimal_egg_info = textwrap.dedent(""" 18 [distutils.commands] 19 egg_info = setuptools.command.egg_info:egg_info 20 21 [distutils.setup_keywords] 22 include_package_data = setuptools.dist:assert_bool 23 install_requires = setuptools.dist:check_requirements 24 extras_require = setuptools.dist:check_extras 25 entry_points = setuptools.dist:check_entry_points 26 27 [egg_info.writers] 28 dependency_links.txt = setuptools.command.egg_info:overwrite_arg 29 entry_points.txt = setuptools.command.egg_info:write_entries 30 requires.txt = setuptools.command.egg_info:write_requirements 31 """) 32 33 34 def ensure_egg_info(): 35 if os.path.exists('setuptools.egg-info'): 36 return 37 print("adding minimal entry_points") 38 build_egg_info() 39 40 41 def build_egg_info(): 42 """ 43 Build a minimal egg-info, enough to invoke egg_info 44 """ 45 46 os.mkdir('setuptools.egg-info') 47 with io.open('setuptools.egg-info/entry_points.txt', 'w') as ep: 48 ep.write(minimal_egg_info) 49 50 51 def run_egg_info(): 52 cmd = [sys.executable, 'setup.py', 'egg_info'] 53 print("Regenerating egg_info") 54 subprocess.check_call(cmd) 55 print("...and again.") 56 subprocess.check_call(cmd) 57 58 59 def main(): 60 ensure_egg_info() 61 run_egg_info() 62 63 64 __name__ == '__main__' and main() 65
