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Annotation of solidite/utils/ln.cpp, revision 1.1

1.1     ! user        1: /* Copyright (c) 2026 The Solidite Developers
        !             2:  *
        !             3:  * This program is free software: you can redistribute it and/or modify it under
        !             4:  * the terms of the GNU Affero General Public License as published by the Free
        !             5:  * Software Foundation, either version 3 of the License, or (at your option)
        !             6:  * any later version.
        !             7:  *
        !             8:  * This program is distributed in the hope that it will be useful, but WITHOUT
        !             9:  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
        !            10:  * FOR A PARTICULAR PURPOSE. See the GNU Affero General Public License for more
        !            11:  * details.
        !            12:  *
        !            13:  * You should have received a copy of the GNU Affero General Public License
        !            14:  * along with this program. If not, see <https://www.gnu.org/licenses/>. */
        !            15: 
        !            16: #include <bitset>
        !            17: #include <filesystem>
        !            18: #include <locale>
        !            19: #include <memory>
        !            20: #include <string>
        !            21: #include <system_error>
        !            22: #include <vector>
        !            23: 
        !            24: #include <cstddef>
        !            25: #include <cstring>
        !            26: 
        !            27: #include "include/io.hpp"
        !            28: 
        !            29: int first_synopsis(const std::unique_ptr<std::vector<std::string>> &TARGETS,
        !            30:     const std::bitset<6> &OPTIONS) {
        !            31:   std::error_code ec;
        !            32: 
        !            33:   if (OPTIONS.test(2) == 1)
        !            34:     std::filesystem::create_symlink(TARGETS -> at(0), TARGETS -> at(1));
        !            35:   else {
        !            36:     std::filesystem::create_hard_link(TARGETS -> at(0), TARGETS -> at(1));
        !            37:   }
        !            38: 
        !            39:   if (ec.value() != 0)
        !            40:     return 1;
        !            41:   return 0;
        !            42: }
        !            43: 
        !            44: int second_synopsis(const std::unique_ptr<std::vector<std::string>> &TARGETS,
        !            45:     const std::bitset<6> &OPTIONS) {
        !            46: }
        !            47: 
        !            48: int main(int argc, char *argv[]) {
        !            49: 
        !            50:   std::locale::global(std::locale(""));
        !            51:   std::bitset<6> options = 0b0;
        !            52:   /* [0]: -- encountered?
        !            53:    * [1]: -f
        !            54:    * [2]: -s
        !            55:    * [3]: -L
        !            56:    * [4]: -P
        !            57:    * [5]: prog return code*/
        !            58: 
        !            59:   std::unique_ptr<std::vector<std::string>> targets =
        !            60:     std::make_unique<std::vector<std::string>>();
        !            61:   // 2 elements implies source file, target file
        !            62:   // 3+ elements implies source file..., target dir
        !            63: 
        !            64:   for (int i = 1; i < argc; ++i) {
        !            65:     if (std::strlen(argv[i]) == 0 || argv[i][0] != '-' ||
        !            66:         options.test(0) == true) {
        !            67:       targets -> push_back(argv[i]);
        !            68:     } else if (std::strcmp("--", argv[i]) == 0) {
        !            69:       options.set(0);
        !            70:     } else {
        !            71:       for (std::size_t j = 1; j < std::strlen(argv[i]); ++j) {
        !            72:         switch (argv[i][j]) {
        !            73:           case 'f':
        !            74:             options.set(1);
        !            75:             break;
        !            76:           case 's':
        !            77:             options.set(2);
        !            78:             break;
        !            79:           case 'L':
        !            80:             options.reset(4);
        !            81:             options.set(3);
        !            82:             break;
        !            83:           case 'P':
        !            84:             options.reset(4);
        !            85:             options.set(4);
        !            86:             break;
        !            87:           default:
        !            88:             print_error("invalid option");
        !            89:             break;
        !            90:         }
        !            91:       }
        !            92:     }
        !            93:   }
        !            94: 
        !            95:   if (targets -> size() == 2 && !std::filesystem::is_directory(targets ->
        !            96:         at(1))) {
        !            97:     if (first_synopsis(targets, options) == 1)
        !            98:       options.set(5);
        !            99:   } else if (targets -> size() > 2) {
        !           100:     if (second_synopsis(targets, options) == 1)
        !           101:       options.set(5);
        !           102:   } else {
        !           103:     print_error("not enough operands\n");
        !           104:     options.set(5);
        !           105:   }
        !           106: 
        !           107:   return options.test(5);
        !           108: }