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/**
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* Relational pipes
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* Copyright © 2019 František Kučera (Frantovo.cz, GlobalCode.info)
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*
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* This program is free software: you can redistribute it and/or modify
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* 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
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* (at your option) any later version.
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*
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* This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#pragma once
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#include <vector>
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#include <relpipe/writer/typedefs.h>
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#include <relpipe/cli/CLI.h>
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#include <relpipe/cli/RelpipeCLIException.h>
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#include "Configuration.h"
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#include "FileAttributeFinder.h"
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namespace relpipe {
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namespace in {
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namespace filesystem {
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using namespace relpipe::writer;
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class CLIParser {
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private:
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string_t readNext(std::vector<string_t> arguments, int& i) {
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if (i < arguments.size()) return arguments[i++];
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else throw relpipe::cli::RelpipeCLIException(L"Missing CLI argument" + (i > 0 ? (L" after " + arguments[i - 1]) : L""), relpipe::cli::CLI::EXIT_CODE_BAD_CLI_ARGUMENTS);
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}
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void addField(Configuration& c, string_t& group, string_t& name, std::vector<string_t>& aliases, std::map<string_t, string_t>& options) {
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if (group.size()) {
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c.fields.push_back(RequestedField(group, name, aliases, options));
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group.clear();
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name.clear();
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aliases.clear();
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options.clear();
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}
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}
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public:
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static const string_t OPTION_FILE;
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static const string_t OPTION_XATTR;
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static const string_t OPTION_AS;
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static const string_t OPTION_OPTION;
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Configuration parse(const std::vector<string_t>& arguments) {
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Configuration c;
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if (arguments.empty()) {
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// default set of fields:
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c.fields.push_back(RequestedField(RequestedField::GROUP_FILE, FileAttributeFinder::FIELD_PATH_ORIGINAL));
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// c.fields.push_back(RequestedField(RequestedField::GROUP_FILE, FileAttributeFinder::FIELD_PATH_ABSOLUTE));
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// c.fields.push_back(RequestedField(RequestedField::GROUP_FILE, FileAttributeFinder::FIELD_PATH_CANONICAL));
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// c.fields.push_back(RequestedField(RequestedField::GROUP_FILE, FileAttributeFinder::FIELD_NAME));
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c.fields.push_back(RequestedField(RequestedField::GROUP_FILE, FileAttributeFinder::FIELD_TYPE));
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// c.fields.push_back(RequestedField(RequestedField::GROUP_FILE, FileAttributeFinder::FIELD_TYPE,{L"type_a", L"type_b"})); // one field → two attributes with same value
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// c.fields.push_back(RequestedField(RequestedField::GROUP_FILE, FileAttributeFinder::FIELD_SYMLINK_TARGET_TYPE));
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// c.fields.push_back(RequestedField(RequestedField::GROUP_FILE, FileAttributeFinder::FIELD_SYMLINK_TARGET));
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c.fields.push_back(RequestedField(RequestedField::GROUP_FILE, FileAttributeFinder::FIELD_SIZE));
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c.fields.push_back(RequestedField(RequestedField::GROUP_FILE, FileAttributeFinder::FIELD_OWNER));
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c.fields.push_back(RequestedField(RequestedField::GROUP_FILE, FileAttributeFinder::FIELD_GROUP));
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// c.fields.push_back(RequestedField(RequestedField::GROUP_XATTR, L"user.xdg.origin.url"));
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} else {
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string_t currentGroup;
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string_t currentName;
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std::vector<string_t> currentAliases;
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std::map<string_t, string_t> currentOptions;
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for (int i = 0; i < arguments.size();) {
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string_t option = readNext(arguments, i);
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if (option == CLIParser::OPTION_FILE || option == CLIParser::OPTION_XATTR) {
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addField(c, currentGroup, currentName, currentAliases, currentOptions); // previous field
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currentGroup = option.substr(2); // cut off --
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currentName = readNext(arguments, i);
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} else if (option == OPTION_AS) {
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currentAliases.push_back(readNext(arguments, i));
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} else if (option == OPTION_OPTION) {
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string_t key = readNext(arguments, i);
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string_t value = readNext(arguments, i);
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currentOptions[key] = value;
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} else {
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throw relpipe::cli::RelpipeCLIException(L"Unsupported CLI option: " + option, relpipe::cli::CLI::EXIT_CODE_BAD_CLI_ARGUMENTS);
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}
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}
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addField(c, currentGroup, currentName, currentAliases, currentOptions); // last field
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}
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return c;
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}
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virtual ~CLIParser() {
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}
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};
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const string_t CLIParser::OPTION_FILE = L"--" + RequestedField::GROUP_FILE;
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const string_t CLIParser::OPTION_XATTR = L"--" + RequestedField::GROUP_XATTR;
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const string_t CLIParser::OPTION_AS = L"--as";
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const string_t CLIParser::OPTION_OPTION = L"--option";
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}
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}
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}
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