mirror of
https://github.com/AGWA/git-crypt.git
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7c129cdd38
This allows the following command to work properly: git-crypt export-key - Previously, you had to run this command, because - was being interpreted as an option argument: git-crypt export-key -- -
116 lines
3.3 KiB
C++
116 lines
3.3 KiB
C++
/*
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* Copyright 2014 Andrew Ayer
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included
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* in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
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* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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* OTHER DEALINGS IN THE SOFTWARE.
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*
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* Except as contained in this notice, the name(s) of the above copyright
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* holders shall not be used in advertising or otherwise to promote the
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* sale, use or other dealings in this Software without prior written
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* authorization.
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*/
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#include "parse_options.hpp"
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#include <cstring>
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static const Option_def* find_option (const Options_list& options, const std::string& name)
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{
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for (Options_list::const_iterator opt(options.begin()); opt != options.end(); ++opt) {
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if (opt->name == name) {
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return &*opt;
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}
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}
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return 0;
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}
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int parse_options (const Options_list& options, int argc, const char** argv)
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{
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int argi = 0;
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while (argi < argc && argv[argi][0] == '-' && argv[argi][1] != '\0') {
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if (std::strcmp(argv[argi], "--") == 0) {
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++argi;
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break;
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} else if (std::strncmp(argv[argi], "--", 2) == 0) {
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std::string option_name;
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const char* option_value = 0;
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if (const char* eq = std::strchr(argv[argi], '=')) {
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option_name.assign(argv[argi], eq);
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option_value = eq + 1;
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} else {
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option_name = argv[argi];
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}
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++argi;
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const Option_def* opt(find_option(options, option_name));
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if (!opt) {
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throw Option_error(option_name, "Invalid option");
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}
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if (opt->is_set) {
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*opt->is_set = true;
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}
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if (opt->value) {
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if (option_value) {
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*opt->value = option_value;
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} else {
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if (argi >= argc) {
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throw Option_error(option_name, "Option requires a value");
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}
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*opt->value = argv[argi];
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++argi;
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}
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} else {
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if (option_value) {
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throw Option_error(option_name, "Option takes no value");
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}
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}
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} else {
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const char* arg = argv[argi] + 1;
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++argi;
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while (*arg) {
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std::string option_name("-");
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option_name.push_back(*arg);
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++arg;
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const Option_def* opt(find_option(options, option_name));
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if (!opt) {
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throw Option_error(option_name, "Invalid option");
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}
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if (opt->is_set) {
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*opt->is_set = true;
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}
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if (opt->value) {
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if (*arg) {
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*opt->value = arg;
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} else {
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if (argi >= argc) {
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throw Option_error(option_name, "Option requires a value");
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}
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*opt->value = argv[argi];
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++argi;
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}
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break;
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}
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}
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}
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}
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return argi;
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}
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