mirror of
https://github.com/0xbbjubjub/miniguest.git
synced 2025-01-08 13:38:13 +03:00
54 lines
1.7 KiB
C++
54 lines
1.7 KiB
C++
/* Copyright 2022 Julie Bettens
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*
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* This file is part of the Miniguest companion.
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*
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* The Miniguest companion is free software: you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or (at your
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* option) any later version.
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*
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* Miniguest is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with Miniguest. If not, see <https://www.gnu.org/licenses/>.
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*/
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#include "common.hpp"
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#include "error.hh"
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namespace fs = std::filesystem;
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using namespace nix;
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Context ContextBuilder::build() {
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if (!symlink_path)
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fs::create_directory(default_symlinks_dir);
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if (!profile_path)
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fs::create_directory(default_profiles_dir);
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return {symlink_path.value_or(default_symlinks_dir / guest_name),
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profile_path.value_or(default_profiles_dir / guest_name)};
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}
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void Context::ensure_symlink() {
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auto st = fs::symlink_status(symlink_path);
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if (!fs::exists(st))
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fs::create_symlink(profile_path, symlink_path);
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else
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check_symlink(st);
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}
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void Context::check_symlink(const fs::file_status &st) {
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if (!fs::is_symlink(st) || fs::read_symlink(symlink_path) != profile_path)
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throw Error(1,
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"not touching symlink because it's not in an expected state");
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}
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void Context::remove_symlink() {
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auto st = fs::symlink_status(symlink_path);
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if (fs::exists(st))
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check_symlink(st);
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fs::remove(symlink_path);
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}
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