mirror of
https://github.com/robbert-vdh/yabridge.git
synced 2026-05-07 12:10:09 +02:00
Robbert van der Helm
113 lines
4.6 KiB
C++
113 lines
4.6 KiB
C++
// yabridge: a Wine VST bridge
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// Copyright (C) 2020-2021 Robbert van der Helm
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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 <https://www.gnu.org/licenses/>.
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#include "configuration.h"
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// tomlplusplus recently got some Windows fixes, but they cause compilation
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// errors and we don't need them so we'll just disable them outright
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#define TOML_WINDOWS_COMPAT 0
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#include <fnmatch.h>
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#include <toml++/toml.h>
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#include <fstream>
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namespace fs = boost::filesystem;
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Configuration::Configuration() {}
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Configuration::Configuration(const fs::path& config_path,
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const fs::path& yabridge_path)
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: Configuration() {
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// Will throw a `toml::parsing_error` if the file cannot be parsed. Better
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// to throw here rather than failing silently since syntax errors would
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// otherwise be impossible to spot. We'll also have to sort all tables by
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// the location in the file since tomlplusplus internally uses ordered maps
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// so otherwise we'll get the tables sorted by key instead.
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toml::table table = toml::parse_file(config_path.string());
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// I wasn't able to wade through the template soup to come up with a better
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// way to sort this by location, so please feel free to correct this if you
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// know of a better way! The source locations has to be stored inside of the
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// vector itself because the `node.source()` on the copies stored in this
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// vector won't contain the proper location after we've iterated through
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// `table`.
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std::vector<std::tuple<std::string, toml::source_region, toml::table>>
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sorted_tables{};
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for (auto [pattern, node] : table) {
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if (const toml::table* config = node.as_table()) {
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sorted_tables.push_back(
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std::make_tuple(pattern, config->source(), *config));
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}
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}
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std::sort(sorted_tables.begin(), sorted_tables.end(),
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[](const auto& a, const auto& b) {
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const auto& [a_pattern, a_source, a_table] = a;
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const auto& [b_pattern, b_source, b_table] = b;
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return a_source.begin.line < b_source.begin.line;
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});
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const fs::path relative_path =
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yabridge_path.lexically_relative(config_path.parent_path());
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for (const auto& [pattern, source, table] : sorted_tables) {
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// First try to match the glob pattern, allow matching an entire
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// directory for ease of use. If none of the patterns in the file match
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// the plugin path then everything will be left at the defaults.
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if (fnmatch(pattern.c_str(), relative_path.c_str(),
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FNM_PATHNAME | FNM_LEADING_DIR) != 0) {
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continue;
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}
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matched_file = config_path;
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matched_pattern = pattern;
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// If the table is missing some fields then they will simply be left at
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// their defaults. At this point I'd really wish C++ could do pattern
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// matching.
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for (const auto& [key, value] : table) {
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if (key == "cache_time_info") {
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if (const auto parsed_value = value.as_boolean()) {
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cache_time_info = parsed_value->get();
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} else {
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invalid_options.push_back(key);
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}
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} else if (key == "editor_double_embed") {
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if (const auto parsed_value = value.as_boolean()) {
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editor_double_embed = parsed_value->get();
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} else {
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invalid_options.push_back(key);
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}
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} else if (key == "editor_xembed") {
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if (const auto parsed_value = value.as_boolean()) {
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editor_xembed = parsed_value->get();
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} else {
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invalid_options.push_back(key);
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}
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} else if (key == "group") {
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if (const auto parsed_value = value.as_string()) {
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group = parsed_value->get();
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} else {
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invalid_options.push_back(key);
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}
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} else {
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unknown_options.push_back(key);
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}
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}
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break;
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}
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}
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