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#!/usr/bin/env python
# Install dependencies from a "[metadata] setup-requires = ..." section in
# setup.cfg, then run real-setup.py.
# From https://bitbucket.org/dholth/setup-requires
import sys, os, subprocess, codecs, pkg_resources
sys.path[0:0] = ['setup-requires']
pkg_resources.working_set.add_entry('setup-requires')
try:
import configparser
except:
import ConfigParser as configparser
def get_requirements():
if not os.path.exists('setup.cfg'): return
config = configparser.ConfigParser()
config.readfp(codecs.open('setup.cfg', encoding='utf-8'))
setup_requires = config.get('metadata', 'setup-requires')
specifiers = [line.strip() for line in setup_requires.splitlines()]
for specifier in specifiers:
try:
pkg_resources.require(specifier)
except pkg_resources.DistributionNotFound:
yield specifier
try:
to_install = list(get_requirements())
if to_install:
subprocess.call([sys.executable, "-m", "pip", "install",
"-t", "setup-requires"] + to_install)
except (configparser.NoSectionError, configparser.NoOptionError):
pass
# Run real-setup.py
exec(compile(open("real-setup.py").read().replace('\\r\\n', '\\n'),
__file__,
'exec'))
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