Function json_object_foreach

src/library.cpp:229–298

	const char* modulesKey;
	json_t* modulesJ;
	json_object_foreach(pluginsJ, modulesKey, modulesJ) {
		std::string pluginSlug = modulesKey;
		// Get plugin manifest
		json_t* manifestJ = json_object_get(manifestsJ, pluginSlug.c_str());
		if (!manifestJ) {
			// Skip plugin silently
			continue;
		}

		// Don't replace existing UpdateInfo, even if version is newer.
		// This keeps things sane and ensures that only one version of each plugin is downloaded to `plugins/` at a time.
		auto it = updateInfos.find(pluginSlug);
		if (it != updateInfos.end()) {
			continue;
		}
		UpdateInfo update;

		// Get plugin name
		json_t* nameJ = json_object_get(manifestJ, "name");
		if (nameJ)
			update.name = json_string_value(nameJ);

		// Get version
		json_t* versionJ = json_object_get(manifestJ, "version");
		if (!versionJ) {
			// WARN("Plugin %s has no version in manifest", pluginSlug.c_str());
			continue;
		}
		update.version = json_string_value(versionJ);
		// Reject plugins with ABI mismatch
		if (!string::startsWith(update.version, APP_VERSION_MAJOR + ".")) {
			continue;
		}

		// Check that update is needed
		plugin::Plugin* p = plugin::getPlugin(pluginSlug);
		if (p) {
			if (update.version == p->version)
				continue;
			if (string::Version(update.version) < string::Version(p->version))
				continue;
		}

		// Check that plugin is available for this arch
		json_t* archesJ = json_object_get(manifestJ, "arches");
		if (!archesJ)
			continue;
		std::string arch = APP_OS + "-" + APP_CPU;
		json_t* archJ = json_object_get(archesJ, arch.c_str());
		if (!json_boolean_value(archJ))
			continue;

		// Get changelog URL
		json_t* changelogUrlJ = json_object_get(manifestJ, "changelogUrl");
		if (changelogUrlJ)
			update.changelogUrl = json_string_value(changelogUrlJ);

		// Get minRackVersion