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path: root/src/backend/solvedeps.py
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#!/usr/bin/python3

import animation
import os
import pickle
import subprocess
import sisyphus.getfs


@animation.wait('resolving dependencies')
def start(pkgname=None):
    bin_list = []
    src_list = []
    need_cfg = int()

    if pkgname:
        args = ['--quiet', '--pretend', '--getbinpkg', '--rebuilt-binaries',
                '--with-bdeps=y', '--misspell-suggestion=n', '--fuzzy-search=n'] + list(pkgname)
    else:
        args = ['--quiet', '--update', '--deep', '--newuse', '--pretend', '--getbinpkg', '--rebuilt-binaries',
                '--backtrack=100', '--with-bdeps=y', '--misspell-suggestion=n', '--fuzzy-search=n', '@world']

    p_exe = subprocess.Popen(
        ['emerge'] + args, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
    stdout, stderr = p_exe.communicate()

    for p_out in stderr.decode('utf-8').splitlines():
        if any(key in p_out for key in ["The following keyword changes are necessary to proceed:",
                                        "The following mask changes are necessary to proceed:",
                                        "The following USE changes are necessary to proceed:",
                                        "The following REQUIRED_USE flag constraints are unsatisfied:",
                                        "One of the following masked packages is required to complete your request:"]):
            need_cfg = int(1)

    for p_out in stdout.decode('utf-8').splitlines():
        if "[binary" in p_out:
            is_bin = p_out.split("]")[1].split("[")[0].strip(" ")
            bin_list.append(is_bin)

        if "[ebuild" in p_out:
            is_src = p_out.split("]")[1].split("[")[0].strip(" ")
            src_list.append(is_src)

    if pkgname:
        pickle.dump([bin_list, src_list, need_cfg], open(os.path.join(
            sisyphus.getfs.p_mtd_dir, "sisyphus_pkgdeps.pickle"), "wb"))
    else:
        pickle.dump([bin_list, src_list, need_cfg], open(os.path.join(
            sisyphus.getfs.p_mtd_dir, "sisyphus_worlddeps.pickle"), "wb"))