235 lines
7.9 KiB
C++
235 lines
7.9 KiB
C++
/*
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Copyright (c) 2013 Microsoft Corporation. All rights reserved.
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Released under Apache 2.0 license as described in the file LICENSE.
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Author: Leonardo de Moura
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*/
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#include <iostream>
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#include <fstream>
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#include <signal.h>
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#include <cstdlib>
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#include <getopt.h>
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#include <string>
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#include "util/stackinfo.h"
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#include "util/debug.h"
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#include "util/interrupt.h"
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#include "util/script_state.h"
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#include "util/thread.h"
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#include "util/lean_path.h"
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#include "kernel/environment.h"
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#include "kernel/kernel_exception.h"
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#include "kernel/formatter.h"
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#include "kernel/standard/standard.h"
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#include "library/module.h"
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#include "library/io_state_stream.h"
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#include "library/error_handling/error_handling.h"
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#include "frontends/lean/parser.h"
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#include "frontends/lean/interactive.h"
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#include "frontends/lua/register_modules.h"
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#include "version.h"
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#include "githash.h" // NOLINT
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using lean::script_state;
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using lean::unreachable_reached;
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using lean::environment;
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using lean::io_state;
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using lean::io_state_stream;
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using lean::regular;
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using lean::mk_environment;
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enum class input_kind { Unspecified, Lean, OLean, Lua };
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static void on_ctrl_c(int ) {
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lean::request_interrupt();
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}
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static void display_header(std::ostream & out) {
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out << "Lean (version " << LEAN_VERSION_MAJOR << "." << LEAN_VERSION_MINOR << ", commit " << std::string(g_githash).substr(0, 12) << ")\n";
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}
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static void display_help(std::ostream & out) {
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display_header(out);
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std::cout << "Input format:\n";
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std::cout << " --lean use parser for Lean default input format for files,\n";
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std::cout << " with unknown extension (default)\n";
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std::cout << " --olean use parser for Lean binary input format for files\n";
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std::cout << " with unknown extension\n";
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std::cout << " --lua use Lua parser for files with unknown extension\n";
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std::cout << "Miscellaneous:\n";
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std::cout << " --help -h display this message\n";
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std::cout << " --version -v display version number\n";
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std::cout << " --githash display the git commit hash number used to build this binary\n";
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std::cout << " --path display the path used for finding Lean libraries and extensions\n";
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std::cout << " --output=file -o save the final environment in binary format in the given file\n";
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std::cout << " --luahook=num -c how often the Lua interpreter checks the interrupted flag,\n";
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std::cout << " it is useful for interrupting non-terminating user scripts,\n";
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std::cout << " 0 means 'do not check'.\n";
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std::cout << " --trust=num -t trust level (default: 0) \n";
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std::cout << " --quiet -q do not print verbose messages\n";
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std::cout << " --interactive -i read blocks of commands from the input stream\n";
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#if defined(LEAN_USE_BOOST)
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std::cout << " --tstack=num -s thread stack size in Kb\n";
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#endif
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}
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static char const * get_file_extension(char const * fname) {
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if (fname == 0)
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return 0;
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char const * last_dot = 0;
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while (true) {
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char const * tmp = strchr(fname, '.');
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if (tmp == 0) {
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return last_dot;
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}
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last_dot = tmp + 1;
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fname = last_dot;
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}
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}
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static struct option g_long_options[] = {
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{"version", no_argument, 0, 'v'},
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{"help", no_argument, 0, 'h'},
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{"lean", no_argument, 0, 'l'},
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{"olean", no_argument, 0, 'b'},
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{"lua", no_argument, 0, 'u'},
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{"path", no_argument, 0, 'p'},
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{"luahook", required_argument, 0, 'c'},
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{"githash", no_argument, 0, 'g'},
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{"output", required_argument, 0, 'o'},
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{"trust", required_argument, 0, 't'},
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{"interactive", no_argument, 0, 'i'},
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{"quiet", no_argument, 0, 'q'},
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#if defined(LEAN_USE_BOOST)
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{"tstack", required_argument, 0, 's'},
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#endif
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{0, 0, 0, 0}
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};
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#if defined(LEAN_USE_BOOST)
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static char const * g_opt_str = "iqlupgvhc:012s:012t:012o:";
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#else
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static char const * g_opt_str = "iqlupgvhc:012t:012o:";
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#endif
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int main(int argc, char ** argv) {
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lean::save_stack_info();
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lean::register_modules();
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bool export_objects = false;
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unsigned trust_lvl = 0;
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bool quiet = false;
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bool interactive = false;
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std::string output;
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input_kind default_k = input_kind::Lean; // default
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while (true) {
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int c = getopt_long(argc, argv, g_opt_str, g_long_options, NULL);
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if (c == -1)
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break; // end of command line
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switch (c) {
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case 'i':
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interactive = true;
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break;
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case 'v':
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display_header(std::cout);
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return 0;
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case 'g':
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std::cout << g_githash << "\n";
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return 0;
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case 'h':
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display_help(std::cout);
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return 0;
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case 'l':
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default_k = input_kind::Lean;
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break;
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case 'u':
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default_k = input_kind::Lua;
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break;
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case 'b':
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default_k = input_kind::OLean;
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break;
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case 'c':
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script_state::set_check_interrupt_freq(atoi(optarg));
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break;
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case 'p':
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std::cout << lean::get_lean_path() << "\n";
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return 0;
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case 's':
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lean::set_thread_stack_size(atoi(optarg)*1024);
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break;
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case 'o':
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output = optarg;
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export_objects = true;
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break;
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case 't':
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trust_lvl = atoi(optarg);
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break;
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case 'q':
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quiet = true;
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break;
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default:
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std::cerr << "Unknown command line option\n";
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display_help(std::cerr);
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return 1;
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}
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}
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environment env = mk_environment(trust_lvl);
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io_state ios(lean::mk_simple_formatter());
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if (quiet)
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ios.set_option("verbose", false);
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script_state S;
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S.apply([&](lua_State * L) {
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set_global_environment(L, env);
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set_global_io_state(L, ios);
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});
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try {
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bool ok = true;
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for (int i = optind; i < argc; i++) {
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char const * ext = get_file_extension(argv[i]);
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input_kind k = default_k;
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if (ext) {
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if (strcmp(ext, "lean") == 0) {
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k = input_kind::Lean;
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} else if (strcmp(ext, "olean") == 0) {
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k = input_kind::OLean;
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} else if (strcmp(ext, "lua") == 0) {
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k = input_kind::Lua;
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}
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}
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if (k == input_kind::Lean) {
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if (!parse_commands(env, ios, argv[i], &S, false))
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ok = false;
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} else if (k == input_kind::OLean) {
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// try {
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// env->load(std::string(argv[i]), ios);
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// } catch (lean::exception & ex) {
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// std::cerr << "Failed to load binary file '" << argv[i] << "': " << ex.what() << "\n";
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// ok = false;
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// }
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} else if (k == input_kind::Lua) {
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try {
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S.dofile(argv[i]);
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} catch (lean::exception & ex) {
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::lean::display_error(regular(env, ios), nullptr, ex);
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ok = false;
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}
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} else {
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lean_unreachable(); // LCOV_EXCL_LINE
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}
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}
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if (ok && interactive && default_k == input_kind::Lean) {
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signal(SIGINT, on_ctrl_c);
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lean::interactive in(env, ios, S);
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in(std::cin, "[stdin]");
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}
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if (export_objects) {
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std::ofstream out(output, std::ofstream::binary);
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export_module(out, env);
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}
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return ok ? 0 : 1;
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} catch (lean::exception & ex) {
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::lean::display_error(regular(env, ios), nullptr, ex);
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}
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return 1;
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}
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