import multiprocessing
import os
import platform
import sys

import src.globalvars as gv


def collect_facts():
    # Populate src.globalvars.facts on import
    _uname = platform.uname()
    gv.facts["hostname"] = _uname.node
    gv.facts["system"] = _uname.system
    gv.facts["kernel"] = _uname.release
    gv.facts["arch"] = _uname.machine
    gv.facts["cpus"] = multiprocessing.cpu_count()
    gv.facts["LD_PRELOAD"] = os.environ.get("LD_PRELOAD", None)

    with open(os.path.join(gv.builddir, "ccinfo"), "r") as ccinfo:
        gv.facts["cc"] = ccinfo.readlines()[-1][:-1]

def get_libc_version(bin=None):
    bin = bin or sys.executable
    platform.libc_ver(executable=bin)