mirror of
https://github.com/zenorogue/hyperrogue.git
synced 2024-11-14 17:34:47 +00:00
31d836b2a9
so that there is just one pause for every sweep of the workforce, so that upper bound on idle time doesn't grow proportionally to the number of workers
275 lines
7.5 KiB
C++
275 lines
7.5 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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int batch_size = thread::hardware_concurrency() + 1;
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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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opts = "-DFHS -DLINUX -I/usr/include/SDL";
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libs = " savepng.o -lSDL -lSDL_ttf -lSDL_mixer -lSDL_gfx -lGLEW -lGL -lpng -rdynamic -lpthread -lz";
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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 = " savepng.o -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_win() {
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preprocessor = "g++ -E";
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compiler = "runbat bwin-g.bat -c";
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linker = "runbat bwin-linker.bat";
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opts = "-DFHS -DLINUX -I/usr/include/SDL";
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libs = "";
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standard = "";
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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 system(string cmdline) {
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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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int main(int argc, char **argv) {
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#if defined(MAC)
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set_mac();
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#elif defined(WINDOWS)
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set_win();
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#else
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set_linux();
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#endif
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for(string fname: {"Makefile.loc", "Makefile.simple", "Makefile"})
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if(file_exists(fname)) {
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system("make -f " + fname + " language-data.cpp autohdr.h savepng.o");
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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 == "-win") {
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set_win();
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obj_dir += "/win";
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setdir += "../";
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}
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else if(s == "-mac") {
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set_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_linux();
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obj_dir += "/linux";
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setdir += "../";
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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 == "-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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system("mkdir -p " + obj_dir);
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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(system(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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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(system(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 system(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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printf("linking...\n");
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system(linker + allobj + libs);
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return 0;
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}
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