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mirror of synced 2024-12-04 20:17:57 +01:00
ImHex/lib/libimhex/source/subcommands/subcommands.cpp

121 lines
4.2 KiB
C++

#include<iostream>
#include<numeric>
#include<string_view>
#include<ranges>
#include<stdlib.h>
#include "hex/subcommands/subcommands.hpp"
#include <hex/api/event.hpp>
#include <hex/api/plugin_manager.hpp>
#include <hex/api/imhex_api.hpp>
#include <hex/helpers/logger.hpp>
namespace hex::subcommands {
std::optional<SubCommand> findSubCommand(const std::string &arg) {
for (auto &plugin : PluginManager::getPlugins()) {
for (auto &subCommand : plugin.getSubCommands()) {
if (hex::format("--{}", subCommand.commandKey) == arg) {
return subCommand;
}
}
}
return std::nullopt;
}
void processArguments(const std::vector<std::string> &args) {
// If no arguments, do not even try to process arguments
// (important because this function will exit ImHex if an instance is already opened,
// and we don't want that if no arguments were provided)
if (args.empty()) return;
std::vector<std::pair<SubCommand, std::vector<std::string>>> subCommands;
auto argsIter = args.begin();
// get subcommand associated with the first argument
std::optional<SubCommand> currentSubCommand = findSubCommand(*argsIter);
if (currentSubCommand) {
argsIter++;
// if it is a valid subcommand, remove it from the argument list
} else {
// if no (valid) subcommand was provided, the default one is --open
currentSubCommand = findSubCommand("--open");
}
// arguments of the current subcommand
std::vector<std::string> currentSubCommandArgs;
// compute all subcommands to run
while (argsIter != args.end()) {
const std::string &arg = *argsIter;
if (arg == "--othercmd") {
// save command to run
if (currentSubCommand) {
subCommands.emplace_back(*currentSubCommand, currentSubCommandArgs);
}
currentSubCommand = std::nullopt;
currentSubCommandArgs = { };
} else if (currentSubCommand) {
// add current argument to the current command
currentSubCommandArgs.push_back(arg);
} else {
// get next subcommand from current argument
currentSubCommand = findSubCommand(arg);
if (!currentSubCommand) {
log::error("No subcommand named '{}' found", arg);
exit(EXIT_FAILURE);
}
}
argsIter++;
}
// save last command to run
if (currentSubCommand) {
subCommands.emplace_back(*currentSubCommand, currentSubCommandArgs);
}
// run the subcommands
for (auto& subCommandPair : subCommands) {
subCommandPair.first.callback(subCommandPair.second);
}
// exit the process if its not the main instance (the commands have been forwarded to another instance)
if (!ImHexApi::System::isMainInstance()) {
exit(0);
}
}
void forwardSubCommand(const std::string &cmdName, const std::vector<std::string> &args) {
log::debug("Forwarding subcommand {} (maybe to us)", cmdName);
std::string dataStr = std::accumulate(args.begin(), args.end(), std::string("\0"));
std::vector<u8> data(dataStr.begin(), dataStr.end());
EventManager::post<SendMessageToMainInstance>(hex::format("command/{}", cmdName), data);
}
void registerSubCommand(const std::string &cmdName, const ForwardCommandHandler &handler) {
log::debug("Registered new forward command handler: {}", cmdName);
ImHexApi::Messaging::impl::getHandlers().insert({ hex::format("command/{}", cmdName), [handler](const std::vector<u8> &eventData){
std::string str((const char*) eventData.data(), eventData.size());
std::vector<std::string> args;
for (const auto &arg_view : std::views::split(str, '\0')) {
std::string arg(arg_view.data(), arg_view.size());
args.push_back(arg);
}
handler(args);
}});
}
}