mirror of
https://github.com/zenorogue/hyperrogue.git
synced 2024-11-30 23:49:53 +00:00
376 lines
11 KiB
C++
376 lines
11 KiB
C++
// HyperRogue: alternative build system
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// This reads the file 'hyper.cpp' and compiles the cpp files it includes into separate object files, and then links them.
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// Tested in Linux, should work in other systems with some changes.
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// Options:
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// -O2 -- optimize
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// -O3 -- optimize
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// -D... -- change compilation flags
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// [file.cpp] -- add a module to the build (e.g. ./mymake rogueviz)
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#include <string>
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#include <fstream>
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#include <iostream>
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#include <thread>
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#include <vector>
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#include <sys/stat.h>
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#include <unistd.h>
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#include <chrono>
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#include <future>
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#include <functional>
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using namespace std;
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string opts;
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string default_standard = " -std=c++11";
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string standard = default_standard;
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string preprocessor;
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string compiler;
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string linker;
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string libs;
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bool verbose = false;
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int batch_size = thread::hardware_concurrency() + 1;
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bool mingw64 = false;
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int sdlver = 1;
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int mysystem(string cmdline) {
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if(verbose) {
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printf("%s\n", cmdline.c_str());
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}
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if (mingw64)
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cmdline = "sh -c '" + cmdline + "'"; // because system(arg) passes arg to cmd.exe on MinGW
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return system(cmdline.c_str());
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}
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bool file_exists(string fname) {
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return access(fname.c_str(), F_OK) != -1;
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}
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#if defined(MAC)
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string os = "mac";
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#elif defined(WINDOWS)
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string os = "mingw64";
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#else
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string os = "linux";
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#endif
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void set_linux() {
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preprocessor = "g++ -E";
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compiler = "g++ -Wall -Wextra -Wno-maybe-uninitialized -Wno-unused-parameter -Wno-implicit-fallthrough -rdynamic -fdiagnostics-color=always -c";
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linker = "g++ -rdynamic -o hyper";
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if(sdlver == 2) {
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opts = "-DFHS -DLINUX -I/usr/include/SDL2";
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libs = " -lSDL2 -lSDL2_ttf -lSDL2_mixer -lSDL2_gfx -lGLEW -lGL -lpng -rdynamic -lpthread -lz";
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}
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else {
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opts = "-DFHS -DLINUX -I/usr/include/SDL";
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libs = " -lSDL -lSDL_ttf -lSDL_mixer -lSDL_gfx -lGLEW -lGL -lpng -rdynamic -lpthread -lz";
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}
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}
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void set_mac() {
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preprocessor = "g++ -E";
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compiler = "g++ -march=native -W -Wall -Wextra -pedantic -Wno-unused-parameter -Wno-implicit-fallthrough -c";
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linker = "g++ -o hyper";
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opts = "-DMAC -I/usr/local/include";
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libs = " -L/usr/local/lib -framework AppKit -framework OpenGL -lSDL -lSDLMain -lSDL_gfx -lSDL_mixer -lSDL_ttf -lpng -lpthread -lz";
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}
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void set_mingw64() {
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mingw64 = true;
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preprocessor = "g++ -E";
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compiler = "g++ -mwindows -march=native -W -Wall -Wextra -Werror -Wno-unused-parameter -Wno-implicit-fallthrough -Wno-maybe-uninitialized -c";
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linker = "g++ -o hyper";
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opts = "-DWINDOWS -DCAP_GLEW=1 -DCAP_PNG=1";
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libs = " hyper.res -lopengl32 -lSDL -lSDL_gfx -lSDL_mixer -lSDL_ttf -lpthread -lz -lglew32 -lpng";
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setvbuf(stdout, NULL, _IONBF, 0); // MinGW is quirky with output buffering
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}
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/* cross-compile Linux to Windows (tested on Archlinux) */
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void set_mingw64_cross() {
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preprocessor = "x86_64-w64-mingw32-g++ -E";
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compiler = "x86_64-w64-mingw32-g++ -mwindows -march=native -W -Wall -Wextra -Werror -Wno-unused-parameter -Wno-implicit-fallthrough -Wno-maybe-uninitialized -c";
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linker = "x86_64-w64-mingw32-g++ -o hyper.exe";
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opts = "-DWINDOWS -DGLEW_STATIC -DUSE_STDFUNCTION=1 -DCAP_PNG=1 -I /usr/x86_64-w64-mingw32/include/SDL/";
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libs = " hyper64.res -static-libgcc -lopengl32 -lSDL -lSDL_gfx -lSDL_mixer -lSDL_ttf -lpthread -lz -lglew32 -lpng";
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setvbuf(stdout, NULL, _IONBF, 0); // MinGW is quirky with output buffering
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if(!file_exists("hyper64.res"))
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mysystem("x86_64-w64-mingw32-windres hyper.rc -O coff -o hyper64.res");
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}
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void set_web() {
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preprocessor = "/usr/lib/emscripten/em++ -E";
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compiler = "/usr/lib/emscripten/em++ -c";
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default_standard = standard = " -std=c++17";
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opts = "-DISWEB=1";
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linker =
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"/usr/lib/emscripten/em++ -s USE_ZLIB=1 -s DISABLE_DEPRECATED_FIND_EVENT_TARGET_BEHAVIOR=0 -s TOTAL_MEMORY=512MB "
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"-s EXTRA_EXPORTED_RUNTIME_METHODS='[\"FS\",\"ccall\"]' "
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"-s EXPORTED_FUNCTIONS=\"['_main', '_use_file']\" "
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"-s DISABLE_EXCEPTION_CATCHING=0 -o mhyper.html";
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libs = "";
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}
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void set_os(string o) {
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os = o;
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if(os == "linux") set_linux();
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else if(os == "mac") set_mac();
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else if(os == "mingw64") set_mingw64();
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else if(os == "mingw64-cross") set_mingw64_cross();
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else if(os == "web") set_web();
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else {
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fprintf(stderr, "unknown OS");
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exit(1);
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}
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}
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vector<string> modules;
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time_t get_file_time(const string s) {
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struct stat attr;
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if(stat(s.c_str(), &attr)) return 0;
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return attr.st_mtime;
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}
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int optimized = 0;
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string obj_dir = "mymake_files";
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string setdir = "../";
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int main(int argc, char **argv) {
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set_os(os);
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int retval = 0; // for storing return values of some function calls
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for(string fname: {"Makefile.loc", "Makefile"})
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if(file_exists(fname)) {
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retval = mysystem("make -f " + fname + " language-data.cpp autohdr.h");
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if (retval) { printf("error during preparation!\n"); exit(retval); }
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break;
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}
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for(int i=1; i<argc; i++) {
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string s = argv[i];
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if(s.substr(0, 2) == "-D") {
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opts += " " + s;
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obj_dir += "/";
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setdir += "../";
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for(char c: s)
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if(!isalnum(c)) obj_dir += "_";
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else obj_dir += c;
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}
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else if(s == "-v") {
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verbose = true;
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}
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else if(s == "-mingw64") {
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set_os("mingw64");
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obj_dir += "/mingw64";
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setdir += "../";
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}
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else if(s == "-mingw64-cross") {
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set_os("mingw64-cross");
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obj_dir += "/mingw64";
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setdir += "../";
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}
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else if(s == "-mac") {
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set_os("mac");
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obj_dir += "/mac";
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setdir += "../";
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}
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else if(s == "-linux") {
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set_os("linux");
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obj_dir += "/linux";
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setdir += "../";
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}
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else if(s == "-web") {
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set_os("web");
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modules.push_back("hyperweb");
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obj_dir += "/web";
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setdir += "../";
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}
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else if(s == "-sdl1") {
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sdlver = 1;
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set_os(os);
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obj_dir += "/sdl1";
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setdir += "../";
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opts += " -DCAP_SDL2=0";
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}
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else if(s == "-sdl2") {
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sdlver = 2;
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set_os(os);
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obj_dir += "/sdl2";
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setdir += "../";
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opts += " -DCAP_SDL2=1";
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}
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else if(s.substr(0, 2) == "-f") {
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opts += " " + s;
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obj_dir += "/";
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setdir += "../";
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for(char c: s)
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if(!isalnum(c)) obj_dir += "_";
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else obj_dir += c;
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linker += " " + s;
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}
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else if(s == "-O2")
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optimized = 2, compiler += " -O2", obj_dir += "/O2", setdir += "../";
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else if(s == "-O3")
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optimized = 3, compiler += " -O3", obj_dir += "/O3", setdir += "../";
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else if(s.substr(0, 4) == "-std")
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standard = s;
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else if(s.substr(0, 2) == "-l")
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linker += " " + s;
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else if(s.substr(0, 2) == "-j")
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batch_size = stoi(s.substr(2));
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else if(s == "-I") {
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opts += " " + s + " " + argv[i+1];
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i++;
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}
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else if(s.substr(0, 2) == "-I")
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opts += " " + s;
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else if(s == "-vr") {
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obj_dir += "/vr";
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setdir += "../";
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linker += " -lopenvr_api";
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opts += " -DCAP_VR=1 -I/usr/include/openvr/";
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}
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else if(s == "-rv") {
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if(standard == default_standard) {
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standard = "-std=c++17";
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}
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ifstream ifs("rogueviz/rogueviz-all.cpp");
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string s;
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while(getline(ifs, s)) {
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if(s.substr(0, 10) == "#include \"") {
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string t = s.substr(10);
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t = t.substr(0, t.find(".cpp\""));
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modules.push_back("rogueviz/" + t);
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}
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}
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}
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else {
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if(s.size() >= 5 && s.substr(s.size() - 4) == ".cpp")
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s = s.substr(0, s.size() - 4);
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modules.push_back(s);
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}
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}
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if(!optimized)
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compiler += " -g3";
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preprocessor += " " + standard;
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compiler += " " + standard;
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ifstream fs("hyper.cpp");
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retval = mysystem("mkdir -p " + obj_dir);
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if (retval) { printf("unable to create output directory!\n"); exit(retval); }
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ofstream fsm(obj_dir + "/hyper.cpp");
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fsm << "#if REM\n#define INCLUDE(x)\n#endif\n";
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string s;
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while(getline(fs, s)) {
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if(s.substr(0, 8) == "#include") {
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string t;
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bool in = false;
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bool ext = false;
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string iext = "";
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for(char c: s) if(c == '"') in = !in; else if(!in) ; else if(c == '.') ext = !ext; else if(!ext) t += c; else iext += c;
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if(iext == "h") { fsm << "#include \"" + setdir + "hyper.h\"\n"; continue; }
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if(iext != "cpp") printf("unknown extension: %s\n", iext.c_str());
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fsm << "INCLUDE(\"" << t << "\")\n";
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continue;
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}
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fsm << s << "\n";
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}
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fsm.close();
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printf("preprocessing...\n");
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if(mysystem(preprocessor + " " + opts + " "+obj_dir+"/hyper.cpp -o "+obj_dir+"/hyper.E")) { printf("preprocessing error\n"); exit(1); }
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if(true) {
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ifstream fs2(obj_dir+"/hyper.E");
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while(getline(fs2, s)) {
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if(s.substr(0, 7) == "INCLUDE") {
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s = s.substr(9);
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s = s.substr(0,s.size() - 2);
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modules.push_back(s);
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}
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}
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}
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modules.push_back("savepng");
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if(get_file_time(obj_dir + "/hyper.o") < get_file_time("hyper.cpp")) {
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printf("compiling hyper...\n");
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if(mysystem(compiler + " -DREM " + opts + " " + obj_dir + "/hyper.cpp -c -o " + obj_dir + "/hyper.o")) { printf("error\n"); exit(1); }
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}
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string allobj = " " + obj_dir + "/hyper.o";
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printf("compiling modules using batch size of %d:\n", batch_size);
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int id = 0;
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vector<pair<int, function<int(void)>>> tasks;
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for(string m: modules) {
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string src = m + ".cpp";
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string m2 = m;
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for(char& c: m2) if(c == '/') c = '_';
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string obj = obj_dir + "/" + m2 + ".o";
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time_t src_time = get_file_time(src);
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if(!src_time) {
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printf("file not found: %s\n", src.c_str());
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exit(1);
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}
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time_t obj_time = get_file_time(obj);
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if(src_time > obj_time) {
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string cmdline = compiler + " " + opts + " " + src + " -o " + obj;
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pair<int, function<int(void)>> task(id, [cmdline]() { return mysystem(cmdline); });
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tasks.push_back(task);
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}
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else {
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printf("ok: %s\n", m.c_str());
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}
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allobj += " ";
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allobj += obj;
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id++;
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}
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chrono::milliseconds quantum(40);
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vector<future<int>> workers(batch_size);
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int tasks_amt = tasks.size();
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int tasks_taken = 0, tasks_done = 0;
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bool finished = tasks.empty();
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while (!finished) {
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for (auto & worker : workers) {
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if (worker.valid()) {
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if (worker.wait_for(chrono::seconds(0)) != future_status::ready) continue;
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else {
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int res = worker.get();
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if (res) { printf("compilation error!\n"); exit(1); }
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++tasks_done;
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}
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}
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if (tasks_taken < tasks_amt) {
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auto task = tasks[tasks_taken];
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int mid = task.first;
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function<int(void)> do_work = task.second;
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printf("compiling %s... [%d/%d]\n", modules[mid].c_str(), tasks_taken+1, tasks_amt);
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worker = async(launch::async, do_work);
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++tasks_taken;
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}
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else if (tasks_done == tasks_amt) { finished = true; break; }
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} this_thread::sleep_for(quantum); }
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if (mingw64) {
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retval = mysystem("windres hyper.rc -O coff -o hyper.res");
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if (retval) { printf("windres error!\n"); exit(retval); }
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}
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printf("linking...\n");
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retval = mysystem(linker + allobj + libs);
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if (retval) { printf("linking error!\n"); exit(retval); }
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return 0;
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}
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