X-Git-Url: https://git.armaanb.net/?a=blobdiff_plain;f=src%2Fmain.cpp;h=a7e95fe751bff9337248f4a3762fde2933c175f0;hb=d8afd601de1f0d8afe6eff61d40ff52d21d90fd8;hp=15523bf67d8bd949c19ff981a91700784d01e177;hpb=6d6b6a5d971decfb9d32752ac882ff56bc33d705;p=gen-shell.git diff --git a/src/main.cpp b/src/main.cpp index 15523bf..a7e95fe 100644 --- a/src/main.cpp +++ b/src/main.cpp @@ -26,141 +26,99 @@ #include #include -#include -#include -#include -#include +#include #include -#include -#include #ifdef HAVE_READLINE #include #include #endif -std::string promptCompose (); +//////////////////////////////////////////////////////////////////////////////// -const std::string getResponse (const std::string& prompt) -{ - std::string response {""}; +using namespace std; +std::string promptCompose(); + +const std::string getResponse(const std::string & prompt) { + std::string response { + "" + }; // Display prompt, get input. -#ifdef HAVE_READLINE - char *line_read = readline (prompt.c_str ()); - if (! line_read) - { + #ifdef HAVE_READLINE + char * line_read = readline(prompt.c_str()); + if (!line_read) { std::cout << "\n"; response = ""; - } - else - { + } else { // Save history. - if (*line_read) - add_history (line_read); + if ( * line_read) + add_history(line_read); - response = std::string (line_read); - free (line_read); + response = std::string(line_read); + free(line_read); } -#else + #else std::cout << prompt; - std::getline (std::cin, response); - if (std::cin.eof () == 1) - { + std::getline(std::cin, response); + if (std::cin.eof() == 1) { std::cout << "\n"; response = ""; } -#endif + #endif return response; } //////////////////////////////////////////////////////////////////////////////// -static int commandLoop (bool autoClear) -{ - // Compose the prompt. - auto prompt = promptCompose (); - // Display prompt, get input. - auto command = getResponse (prompt); +int main(int argc, char** argv) +{ - // Obey Taskwarrior's rc.tasksh.autoclear. - if (autoClear) - std::cout << "\033[2J\033[0;0H"; + // Command line arguments + Sarge sarge; - int status = 0; - if (! isatty (fileno (stdin)) && command == "") - { - status = -1; - } - else if (command != "") - { - auto args = split (command, ' '); - - // Dispatch command. - if (args[0] == "") status = -1; - else if (closeEnough ("exit", args[0], 3)) status = -1; - else if (closeEnough ("quit", args[0], 3)) status = -1; - else if (command != "") - { - command = "echo " + command + " | lolcat "; - std::cout << "[" << command << "]\n"; - system (command.c_str ()); + sarge.setArgument("h", "help", "Get help.", false); + sarge.setArgument("c", "cmd", "Command to execute before entering the shell", true); + sarge.setDescription("Make a shell from any command"); + sarge.setUsage("gen-shell "); - // Deliberately ignoreѕ taskwarrior exit status, otherwise empty filters - // cause the shell to terminate. - } - } + if (!sarge.parseArguments(argc, argv)) { + std::cerr << "Couldn't parse arguments..." << std::endl; + return 1; + } - return status; -} + if (sarge.exists("help")) { + sarge.printHelp(); + return 0; + } -//////////////////////////////////////////////////////////////////////////////// -int main (int argc, const char** argv) -{ - int status = 0; + string arg_cmd; + sarge.getFlag("cmd", arg_cmd); + arg_cmd += " "; - // Lightweight version checking that doesn't require initialization or any I/O. - if (argc == 2 && !strcmp (argv[1], "--version")) - { - std::cout << VERSION << "\n"; - } - else - { - try - { - // Get the Taskwarrior rc.tasksh.autoclear Boolean setting. - bool autoClear = false; - std::string input; - std::string output; - execute ("task", {"_get", "rc.tasksh.autoclear"}, input, output); - output = lowerCase (output); - autoClear = (output == "true\n" || - output == "1\n" || - output == "y\n" || - output == "yes\n" || - output == "on\n"); - - while ((status = commandLoop (autoClear)) == 0) - ; - } + // Main program + while (true) { + // Compose the prompt. + auto prompt = promptCompose(); - catch (const std::string& error) - { - std::cerr << error << "\n"; - status = -1; - } + // Display prompt, get input. + auto command = getResponse(prompt); - catch (...) + if (command != "") { - std::cerr << "Unknown error." << "\n"; - status = -2; + // Dispatch command. + if (command == "") + { + return 0; + } + else if (command != "") + { + string whole_command = arg_cmd + command; + system (whole_command.c_str ()); + } } } - - // Returning -1 drops out of the command loop, but gets translated to 0 here, - // so that there is a clean way to exit. - return status == -1 ? 0 : status; } ////////////////////////////////////////////////////////////////////////////////