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nob.c
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nob.c
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// #define _NOB_TEST
#define NOB_IMPLEMENTATION
#include ".nob/nob.h"
#define NOB_EXTENSIONS_IMPLEMENTATION
#include ".nob/nob_extensions.h"
#define NOB_CONFIG_PATH ".nob/nob_config.h"
#if defined(NOB_CONFIGURED) || defined(_NOB_TEST)
#include NOB_CONFIG_PATH
static const char* source_exts[] = {".c", ".cpp", ".cxx"};
static const char* obj_exts[] = {".o", ".obj", ".objc"};
// TODO: Add a way to store outputs(object files, shared/dynamic library files)?
typedef struct {
const char* name;
const void* config;
int (*acquire)(const void* this);
int (*build)(const void* this);
} External;
int default_external_acquire(const void* this) {
(void)this;
return 1;
}
int default_external_build(const void* this) {
(void)this;
return 1;
}
typedef struct {
const char* link;
const char* branch; // Optional
const char* tag; // Optional
} ExternalGitConfig;
int default_git_external_acquire(const void* this);
int external_imgui_build(const void* this_ptr);
int external_glfw_build(const void* this);
// We can introduce dependencies on each other but who cares right now lol...
static const External externals[] = {
{
.name = "glfw",
&(ExternalGitConfig){
.link = "https://github.com/glfw/glfw.git",
.branch = NULL,
.tag = "3.3.9",
},
&default_git_external_acquire,
&external_glfw_build,
},
{
.name = "imgui",
&(ExternalGitConfig){
.link = "https://github.com/ocornut/imgui.git",
.branch = NULL,
.tag = "v1.90",
},
&default_git_external_acquire,
&external_imgui_build,
},
{
.name = "concurrentqueue",
&(ExternalGitConfig){
.link = "https://github.com/cameron314/concurrentqueue.git",
.branch = NULL,
.tag = "v1.0.4",
},
&default_git_external_acquire,
&default_external_build,
}};
int default_git_external_acquire(const void* this_ptr) {
External* this = (External*)this_ptr;
int result = 1;
ExternalGitConfig* config = (ExternalGitConfig*)this->config;
const char* dir = this->name;
const char* proj_dir = nob_temp_sprintf(EXTERNALS_DIR "/%s", dir);
const char* proj_git_dir = nob_temp_sprintf("%s/.git", proj_dir);
Nob_Cmd cmd = {0};
nob_cmd_append(&cmd, git_exec);
// TODO: Find a more solid way to detect if the externel dir is a git proj.
// Use `git` client itself to detect it... ```git rev-parse --git-dir```
if (nob_file_exists(proj_git_dir)) {
nob_cmd_append(&cmd, "--git-dir");
nob_cmd_append(&cmd, proj_git_dir);
nob_cmd_append(&cmd, "--work-tree");
nob_cmd_append(&cmd, proj_dir);
nob_cmd_append(&cmd, "pull");
if (config->branch)
nob_cmd_append(&cmd, "origin", "branch", config->branch);
else if (config->tag)
nob_cmd_append(&cmd, "origin", "tag", config->tag);
if (!nob_cmd_run_sync(cmd)) {
nob_log(NOB_ERROR,
"Couldn't pull the project from '%s', remove the %s directory and try again",
config->link, proj_dir);
nob_return_defer(0);
}
nob_return_defer(1);
}
nob_cmd_append(&cmd, "clone");
nob_cmd_append(&cmd, config->link);
nob_cmd_append(&cmd, "--depth=1"); // TODO: make it configurable?
if (config->branch)
nob_cmd_append(&cmd, "--branch", config->branch, "--single-branch");
else if (config->tag)
nob_cmd_append(&cmd, "--branch", config->tag, "--single-branch");
nob_cmd_append(&cmd, proj_dir);
if (!nob_cmd_run_sync(cmd))
nob_return_defer(0);
defer:
nob_cmd_free(cmd);
return result;
}
// Valid till next nob_temp_reset.
const char* default_external_dir(const void* this_ptr) {
External* this = (External*)this_ptr;
const char* proj_dir = nob_temp_sprintf(EXTERNALS_DIR "/%s", this->name);
return proj_dir;
}
typedef struct {
const char** search_dirs;
size_t search_dirs_len;
const char** search_files;
size_t search_files_len;
} SearchFilesInDirsArgs;
int search_files_in_dirs(SearchFilesInDirsArgs args, int* found_dir_idx) {
int result = 0;
*found_dir_idx = -1;
for (size_t i = 0; i < args.search_dirs_len; i++) {
size_t j = 0;
for (; j < args.search_files_len; j++) {
const char* search_file_path =
nob_temp_sprintf("%s/%s", args.search_dirs[i], args.search_files[j]);
int file_exists = nob_file_exists(search_file_path);
if (file_exists < 0)
nob_return_defer(file_exists);
if (!file_exists)
break;
}
if (j == args.search_files_len) {
*found_dir_idx = i;
nob_return_defer(1);
}
}
defer:
return result;
}
int search_any_file_in_dirs(SearchFilesInDirsArgs args, int* found_dir_idx, int* found_file_idx) {
int result = 0;
*found_dir_idx = -1;
for (size_t i = 0; i < args.search_dirs_len; i++) {
size_t j = 0;
for (; j < args.search_files_len; j++) {
const char* search_file_path =
nob_temp_sprintf("%s/%s", args.search_dirs[i], args.search_files[j]);
int file_exists = nob_file_exists(search_file_path);
if (file_exists < 0)
nob_return_defer(file_exists);
if (file_exists) {
*found_dir_idx = i;
*found_file_idx = j;
nob_return_defer(1);
}
}
}
defer:
return result;
}
#if !defined(_WIN32) && !defined(__APPLE__) && !defined(__MACH__)
// Uses Temp Buffer of NOB the caller must be responsible for freeing the strings...
bool unix_find_glfw_required_x11_paths(char** include_dir, char** libs_dir) {
// reference: https://github.com/Kitware/CMake/blob/master/Modules/FindX11.cmake
static const char* x11_inc_search_dirs[] = {
"/usr/pkg/xorg/include", "/usr/X11R6/include",
"/usr/X11R7/include", "/usr/include/X11",
"/usr/openwin/include", "/usr/openwin/share/include",
"/opt/graphics/OpenGL/include", "/opt/X11/include"};
static const char* x11_lib_search_dirs[] = {"/usr/pkg/xorg/lib", "/usr/X11R6/lib",
"/usr/X11R7/lib", "/usr/openwin/lib",
"/opt/X11/lib"};
static const char* x11_required_header_files[] = {"X11/X.h",
"X11/extensions/Xrandr.h",
"X11/extensions/Xinerama.h",
"X11/extensions/XKB.h",
"X11/Xcursor/Xcursor.h",
"X11/extensions/XInput.h",
"X11/extensions/shape.h"};
static const char* x11_lib_files[] = {"libX11.so", "libX11.a", "libX11"};
bool result = true;
*include_dir = NULL;
*libs_dir = NULL;
char* x11_lib = NULL;
int x11_include_dir_idx = 0;
int x11_lib_dir_idx = 0;
int x11_lib_file_idx = 0;
if (search_files_in_dirs((SearchFilesInDirsArgs){include_dirs.items, include_dirs.count,
x11_required_header_files,
NOB_ARRAY_LEN(x11_required_header_files)},
&x11_include_dir_idx))
*include_dir = nob_temp_strdup(include_dirs.items[x11_include_dir_idx]);
else if (search_files_in_dirs((SearchFilesInDirsArgs){x11_inc_search_dirs,
NOB_ARRAY_LEN(x11_inc_search_dirs),
x11_required_header_files,
NOB_ARRAY_LEN(x11_required_header_files)},
&x11_include_dir_idx))
*include_dir = nob_temp_strdup(x11_inc_search_dirs[x11_include_dir_idx]);
else {
nob_log(NOB_ERROR, "Couldn't find any X11 include dirs.");
nob_return_defer(false);
}
if (search_any_file_in_dirs((SearchFilesInDirsArgs){library_dirs.items, library_dirs.count,
x11_lib_files,
NOB_ARRAY_LEN(x11_lib_files)},
&x11_lib_dir_idx, &x11_lib_file_idx)) {
*libs_dir = nob_temp_strdup(library_dirs.items[x11_lib_dir_idx]);
x11_lib = nob_temp_strdup(x11_lib_files[x11_lib_file_idx]);
}
else if (search_any_file_in_dirs(
(SearchFilesInDirsArgs){x11_lib_search_dirs, NOB_ARRAY_LEN(x11_lib_search_dirs),
x11_lib_files, NOB_ARRAY_LEN(x11_lib_files)},
&x11_lib_dir_idx, &x11_lib_file_idx)) {
*libs_dir = nob_temp_strdup(x11_lib_search_dirs[x11_lib_dir_idx]);
x11_lib = nob_temp_strdup(x11_lib_files[x11_lib_file_idx]);
}
else {
nob_log(NOB_ERROR, "Couldn't find any X11 libraries.");
nob_return_defer(false);
}
nob_log(NOB_INFO,
"Found X11 Package:\n include_path=%s\n library_path=%s\n libfile=%s\n",
*include_dir, *libs_dir, x11_lib);
defer:
return result;
}
#endif
typedef struct {
const char* input_dir;
const char* build_dir;
const char* input_flag;
const char* output_flag;
size_t max_process_count;
bool force_rebuild;
#ifdef _WIN32
const char* pdb_file;
bool multiple_pdb_writer;
#endif
} CompileObjsOptions;
// TODO(For future self projects): make these configurable through the config header file..
void default_platform_specific_compile_options(Nob_Cmd* cmd, CompileObjsOptions* options) {
options->max_process_count = MAX_PROCESS;
options->force_rebuild = false;
options->input_flag = "-c";
options->output_flag = "-o";
#ifdef _WIN32
options->output_flag = "-Fo";
#ifdef BUILD_DEBUG
nob_cmd_append(cmd, "-Od", "-EHsc", "-Zi", "-Ob0", "-MDd", "-RTC1", "-D_DEBUG=1");
#else
nob_cmd_append(cmd, "-O2", "-Ob2", "-MD", "-DNDEBUG");
#endif
// such bloat....
nob_cmd_append(cmd, "-WX-", "-D_UNICODE", "-DUNICODE", "-DWIN32", "-D_WINDOWS", "-Gm-", "-GS",
"-fp:precise", "-Zc:wchar_t", "-Zc:forScope", "-Zc:inline");
if (options->multiple_pdb_writer) {
nob_cmd_append(cmd, "-MP");
nob_cmd_append(cmd, "-FS");
}
if (options->pdb_file) {
nob_cmd_append(cmd,
nob_temp_sprintf("-Fd\"%s/%s\"", options->build_dir, options->pdb_file));
}
else {
nob_cmd_append(cmd, nob_temp_sprintf("-Fd\"%s/" DEFAULT_PDB_FILE "\"", options->build_dir));
}
#else // _WIN32
#ifdef BUILD_DEBUG
nob_cmd_append(cmd, "-O0", "-ggdb", "-D_DEBUG=1");
#else
nob_cmd_append(cmd, "-O2", "-DNDEBUG", "-s");
#if defined(__APPLE__) || defined(__MACH__)
#else // MACOS
#endif // UNIX/LINUX
#endif
#endif // END_OF_PLATFORM_SPECIFIC
}
bool compile_obj_files(Nob_Cmd* default_cmd, const CompileObjsOptions* options,
const char** sources, size_t sources_cnt, Nob_File_Paths* object_files) {
bool result = true;
const size_t saved_cmd_cnt = default_cmd->count;
Nob_Procs procs = {0};
const char* full_input_dir = nob_fullpath(options->input_dir);
NOB_ASSERT(full_input_dir != NULL && "The input dir shouldn't be NULL");
const char* full_build_dir = nob_fullpath(options->build_dir);
NOB_ASSERT(full_build_dir != NULL && "The build dir shouldn't be NULL");
full_build_dir = nob_temp_sprintf("%s/" BUILD_OBJS_DIR, full_build_dir);
if (!nob_mkdir_recursively_if_not_exists(full_build_dir)) {
nob_return_defer(false);
}
size_t idx = 0;
do {
for (size_t p = 0; p < options->max_process_count; p++, idx++) {
if (idx >= sources_cnt)
break;
default_cmd->count = saved_cmd_cnt;
const char* input_file_path = sources[idx];
const char* input_path = nob_fullpath(input_file_path);
if (input_path == NULL) {
input_path = nob_temp_sprintf("%s/%s", full_input_dir, input_file_path);
}
const char* output_path =
nob_temp_sprintf("%s/%s.obj", full_build_dir, nob_filename_from_path(input_path));
nob_da_append(object_files, output_path);
if (options->force_rebuild || nob_needs_rebuild(output_path, &input_path, 1)) {
nob_cmd_append(default_cmd, options->input_flag, input_path);
#ifdef _WIN32
nob_cmd_append(default_cmd,
nob_temp_sprintf("%s%s", options->output_flag, output_path));
#else
nob_cmd_append(default_cmd, options->output_flag, output_path);
#endif
Nob_Proc proc = nob_cmd_run_async(*default_cmd);
nob_da_append(&procs, proc);
}
}
if (!nob_procs_wait(procs))
nob_return_defer(false);
procs.count = 0;
} while (idx < sources_cnt);
defer:
nob_da_free(procs);
default_cmd->count = saved_cmd_cnt;
return result;
}
int external_glfw_build(const void* this_ptr) {
External* this = (External*)this_ptr;
static const char* default_srcs[] = {"src/context.c", "src/init.c", "src/input.c",
"src/monitor.c", "src/vulkan.c", "src/window.c"};
ExternalGitConfig* config = (ExternalGitConfig*)this->config;
nob_log_linebreak();
nob_log(NOB_INFO, "Building glfw %s...", config->tag);
int result = 1;
const char* dir = this->name;
Nob_Cmd cmd = {0};
Nob_File_Paths object_files = {0};
const char* proj_dir = nob_temp_sprintf(EXTERNALS_DIR "/%s", dir);
const char* build_path = BUILD__PATH(EXTERNALS_DIR "/glfw");
if (!nob_mkdir_recursively_if_not_exists(build_path)) {
nob_return_defer(0);
}
nob_cmd_append(&cmd, c_compiler_exec);
CompileObjsOptions compile_objs_options = {.input_dir = proj_dir,
.build_dir = build_path,
#ifdef _WIN32
.pdb_file = "glfw.pdb",
.multiple_pdb_writer = true
#endif
};
default_platform_specific_compile_options(&cmd, &compile_objs_options);
nob_cmd_append(&cmd, nob_temp_sprintf("-I%s/include", proj_dir));
nob_cmd_append(&cmd, nob_temp_sprintf("-I%s/src", proj_dir));
#ifdef _WIN32
static const char* platform_specific_sources[] = {
"src/win32_init.c", "src/win32_joystick.c", "src/win32_monitor.c",
"src/win32_time.c", "src/win32_thread.c", "src/win32_window.c",
"src/wgl_context.c", "src/egl_context.c", "src/osmesa_context.c"};
nob_cmd_append(&cmd, "-D_CRT_SECURE_NO_WARNINGS", "-Gd", "-TC", "/errorReport:prompt", "-W3",
"/external:W3");
nob_cmd_append(&cmd, "-D_GLFW_WIN32");
#else
nob_cmd_append(&cmd, "-fPIC", "-Wall", "-std=gnu99");
#if defined(__APPLE__) || defined(__MACH__)
static const char* platform_specific_sources[] = {
"src/cocoa_init.m", "src/cocoa_joystick.m", "src/cocoa_monitor.m",
"src/cocoa_window.m", "src/cocoa_time.c", "src/posix_thread.c",
"src/nsgl_context.m", "src/egl_context.c", "src/osmesa_context.c",
};
nob_cmd_append(&cmd, "-D_GLFW_COCOA");
// Note: We're cross-linking clang compiled objects with gnu linker, please be cautious.
nob_cmd_append(&cmd, "-Wno-unknown-warning-option", "-Wno-unused-command-line-argument");
#else
static const char* platform_specific_sources[] = {
"src/x11_init.c", "src/x11_monitor.c", "src/x11_window.c", "src/xkb_unicode.c",
"src/posix_time.c", "src/posix_thread.c", "src/glx_context.c", "src/egl_context.c",
"src/osmesa_context.c", "src/linux_joystick.c"};
char* x11_include_path = NULL;
char* x11_library_path = NULL;
if (!unix_find_glfw_required_x11_paths(&x11_include_path, &x11_library_path))
nob_return_defer(0);
bool is_non_implicit_x11_path = !nob_fps_contains_path(&include_dirs, x11_include_path) ||
!nob_fps_contains_path(&library_dirs, x11_library_path);
if (!is_non_implicit_x11_path) {
nob_cmd_append(&cmd, nob_temp_sprintf("-I%s", x11_include_path));
nob_cmd_append(&cmd, nob_temp_sprintf("-L%s", x11_library_path));
}
nob_cmd_append(&cmd, "-D_GLFW_X11");
#endif
#endif
if (!compile_obj_files(&cmd, &compile_objs_options, default_srcs, NOB_ARRAY_LEN(default_srcs),
&object_files)) {
nob_return_defer(0);
}
if (!compile_obj_files(&cmd, &compile_objs_options, platform_specific_sources,
NOB_ARRAY_LEN(platform_specific_sources), &object_files)) {
nob_return_defer(0);
}
cmd.count = 0;
// link to shared lib...
#ifdef _WIN32
const char* libglfw3_path = nob_temp_sprintf("%s/glfw3.lib", build_path);
if (nob_needs_rebuild(libglfw3_path, object_files.items, object_files.count)) {
nob_cmd_append(&cmd, "lib", nob_temp_sprintf("/OUT:%s", libglfw3_path), "/MACHINE:X64",
"/machine:x64");
for (size_t i = 0; i < object_files.count; ++i) {
nob_cmd_append(&cmd, object_files.items[i]);
}
if (!nob_cmd_run_sync(cmd))
nob_return_defer(false);
}
#else
const char* libglfw3_path = nob_temp_sprintf("%s/libglfw3.a", build_path);
if (nob_needs_rebuild(libglfw3_path, object_files.items, object_files.count)) {
nob_cmd_append(&cmd, "ar", "qc", libglfw3_path);
for (size_t i = 0; i < object_files.count; ++i) {
nob_cmd_append(&cmd, object_files.items[i]);
}
if (!nob_cmd_run_sync(cmd))
nob_return_defer(false);
cmd.count = 0;
nob_cmd_append(&cmd, "ranlib", libglfw3_path);
if (!nob_cmd_run_sync(cmd))
nob_return_defer(false);
}
#endif
nob_log(NOB_INFO, "GLFW has been built successfully!");
defer:
nob_cmd_free(cmd);
nob_da_free(object_files);
return result;
}
int external_imgui_build(const void* this_ptr) {
static const char* imgui_backend_files[] = {
"backends/imgui_impl_glfw.cpp",
"backends/imgui_impl_opengl3.cpp",
};
External* this = (External*)this_ptr;
ExternalGitConfig* config = (ExternalGitConfig*)this->config;
nob_log_linebreak();
nob_log(NOB_INFO, "Building imgui %s...", config->tag);
int result = 1;
const char* dir = this->name;
Nob_Cmd cmd = {0};
Nob_File_Paths object_files = {0};
Nob_File_Paths srcs = {0};
const char* proj_dir = nob_temp_sprintf(EXTERNALS_DIR "/%s", dir);
const char* build_path = nob_temp_sprintf(BUILD__PATH(EXTERNALS_DIR "/%s"), dir);
if (!nob_mkdir_recursively_if_not_exists(build_path)) {
nob_return_defer(0);
}
#if defined(__APPLE__) || defined(__MACH__)
nob_cmd_append(&cmd, obj_cpp_compiler_exec);
#else
nob_cmd_append(&cmd, cpp_compiler_exec);
#endif
CompileObjsOptions compile_objs_options = {.input_dir = proj_dir,
.build_dir = build_path,
#ifdef _WIN32
.pdb_file = "imgui.pdb",
.multiple_pdb_writer = true
#endif
};
default_platform_specific_compile_options(&cmd, &compile_objs_options);
if (!nob_find_files_with_extensions(proj_dir, source_exts, NOB_ARRAY_LEN(source_exts), &srcs)) {
nob_return_defer(0);
}
if (!nob_find_paths_recursively(proj_dir, imgui_backend_files,
NOB_ARRAY_LEN(imgui_backend_files), &srcs)) {
nob_return_defer(0);
}
for (size_t i = 0; i < NOB_ARRAY_LEN(externals); i++) {
if (strcmp(externals[i].name, "glfw") == 0) {
const char* dir = default_external_dir(&externals[i]);
nob_cmd_append(&cmd, nob_temp_sprintf("-I%s/include", dir));
break;
}
}
nob_cmd_append(&cmd, nob_temp_sprintf("-I%s/backends", proj_dir));
nob_cmd_append(&cmd, nob_temp_sprintf("-I%s", proj_dir));
#ifdef _WIN32
nob_cmd_append(&cmd, "-W4", "-std:c++20");
#else // _WIN32
#if defined(__APPLE__) || defined(__MACH__)
// Note: We're cross-linking clang compiled objects with gnu linker, please be cautious.
nob_cmd_append(&cmd, "-Wno-unknown-warning-option", "-Wno-unused-command-line-argument");
#else // MACOS
#endif // LINUX
nob_cmd_append(&cmd, "-Wall", "-std=c++20");
#endif // END_OF_PLATFORM_SEPCIFIC
if (!compile_obj_files(&cmd, &compile_objs_options, srcs.items, srcs.count, &object_files)) {
nob_return_defer(0);
}
nob_log(NOB_INFO, "ImGui Object Files has been built successfully!");
defer:
nob_cmd_free(cmd);
nob_da_free(object_files);
nob_da_free(srcs);
return result;
}
#define TEMPORARY_NOB_OUT ".nob/nob.tmp"
#ifdef _WIN32
int populate_lib_inc_dirs() {
NOB_ASSERT(false && "TODO: for windows");
}
#else
#if defined(__APPLE__) || defined(__MACH__)
int populate_lib_inc_dirs() {
int result = 1;
Nob_Cmd cmd = {0};
Nob_String_Builder sb = {0};
nob_log(NOB_INFO, "Extracting system library and include path from c compiler...");
nob_cmd_append(&cmd, CC, "-v", "-o", TEMPORARY_NOB_OUT, __FILE__);
if (!nob_cmd_run_sync_with_output(cmd, &sb, NULL) || sb.count <= 1) {
nob_return_defer(0);
}
nob_sb_append_null(&sb);
static const char* lib_dir_param = "-L";
const size_t lib_dir_param_sz = strlen(lib_dir_param);
static const size_t version_segments = 3;
bool searching_for_include_dirs = false;
Nob_String_View output = nob_sv_from_parts(sb.items, sb.count);
do {
Nob_String_View line = nob_sv_chop_by_delim(&output, '\n');
if (line.count > 0) {
if (nob_sv_contains_cstr(line, "/bin/ld")) {
nob_log(NOB_INFO, "LD line:" SV_Fmt, SV_Arg(line));
Nob_String_View args;
do {
args = nob_sv_chop_by_delim(&line, ' ');
if (nob_sv_startswith_cstr(args, lib_dir_param)) {
char* lib_dir = realpath(
nob_temp_sv_to_cstr(nob_sv_chop_left_by_n(args, lib_dir_param_sz)),
NULL);
if (lib_dir) {
if (!nob_fps_contains_path(&library_dirs, lib_dir)) {
nob_log(NOB_INFO, "Found LIB DIR: %s", lib_dir);
nob_da_append(&library_dirs, lib_dir);
}
else
free(lib_dir);
}
}
else if (nob_sv_startswith_cstr(args, "-platform_version")) {
size_t cur_version_segments = version_segments;
Nob_String_Builder version_sb = {0};
do {
if (cur_version_segments != version_segments)
nob_sb_append_buf(&version_sb, ",", 1);
args = nob_sv_chop_by_delim(&line, ' ');
nob_sb_append_buf(&version_sb, args.data, args.count);
cur_version_segments--;
} while (args.count > 0 && cur_version_segments > 0);
nob_sb_append_null(&version_sb);
os_version_str = version_sb.items; // should free manually...
nob_log(NOB_INFO, "OSX Version: %s", os_version_str);
}
else if (nob_sv_startswith_cstr(args, "-syslibroot")) {
args = nob_sv_chop_by_delim(&line, ' ');
if (args.count > 0) {
Nob_String_Builder sysroot_dir_sb = {0};
nob_sb_append_buf(&sysroot_dir_sb, args.data, args.count);
nob_sb_append_null(&sysroot_dir_sb);
os_sysroot_dir = sysroot_dir_sb.items; // should free manually...
nob_log(NOB_INFO, "Sysroot: %s", os_sysroot_dir);
}
}
} while (line.count > 0);
continue;
}
if (searching_for_include_dirs) {
if (nob_sv_startswith_cstr(line, "End of search list")) {
searching_for_include_dirs = false;
continue;
}
char* include_dir = realpath(nob_temp_sv_to_cstr(nob_sv_trim(line)), NULL);
if (include_dir) {
if (!nob_fps_contains_path(&include_dirs, include_dir)) {
nob_log(NOB_INFO, "Found INC DIR: %s", include_dir);
nob_da_append(&include_dirs, include_dir);
}
else
free(include_dir);
}
continue;
}
if (nob_sv_startswith_cstr(line, "#include <...> search"))
searching_for_include_dirs = true;
}
} while (output.count > 0);
if (searching_for_include_dirs) {
nob_log(NOB_ERROR, "Couldn't parse the system default include dirs");
nob_return_defer(0);
}
if (!os_version_str) {
nob_log(NOB_ERROR, "Couldn't find MacOSX platform version, please specify clang c compiler "
"in the config or the parsing function is outdated..");
nob_return_defer(0);
}
if (!os_sysroot_dir) {
nob_log(NOB_ERROR, "Missing SDK sysroot lib dir, please specify clang c compiler in the "
"config or the parsing function is outdated..");
nob_return_defer(0);
}
defer:
if (nob_file_exists(TEMPORARY_NOB_OUT))
remove(TEMPORARY_NOB_OUT);
nob_cmd_free(cmd);
nob_sb_free(sb);
return result;
}
#else
int populate_lib_inc_dirs() {
int result = 1;
Nob_Cmd cmd = {0};
Nob_String_Builder sb = {0};
nob_log(NOB_INFO, "Extracting system library and include path from c compiler...");
nob_cmd_append(&cmd, CC, "-v", "-o", TEMPORARY_NOB_OUT, __FILE__);
if (!nob_cmd_run_sync_with_output(cmd, &sb, NULL) || sb.count <= 1) {
nob_return_defer(0);
}
nob_sb_append_null(&sb);
bool searching_for_include_dirs = false;
Nob_String_View output = nob_sv_from_parts(sb.items, sb.count);
do {
Nob_String_View line = nob_sv_chop_by_delim(&output, '\n');
if (line.count > 0) {
if (nob_sv_startswith_cstr(line, "LIBRARY_PATH=")) {
Nob_String_View args = nob_sv_chop_by_delim_get_last(&line, '=');
do {
char* lib_dir =
realpath(nob_temp_sv_to_cstr(nob_sv_chop_by_delim(&args, ':')), NULL);
if (lib_dir) {
if (!nob_fps_contains_path(&library_dirs, lib_dir)) {
nob_da_append(&library_dirs, lib_dir);
}
else
free(lib_dir);
}
} while (args.count > 0);
continue;
}
if (searching_for_include_dirs) {
if (nob_sv_startswith_cstr(line, "End of search list")) {
searching_for_include_dirs = false;
continue;
}
char* include_dir = realpath(nob_temp_sv_to_cstr(nob_sv_trim(line)), NULL);
if (include_dir) {
if (!nob_fps_contains_path(&include_dirs, include_dir)) {
nob_da_append(&include_dirs, include_dir);
}
else
free(include_dir);
}
continue;
}
if (nob_sv_startswith_cstr(line, "#include <...> search"))
searching_for_include_dirs = true;
}
} while (output.count > 0);
if (searching_for_include_dirs) {
nob_log(NOB_ERROR, "Couldn't parse the system default include dirs");
nob_return_defer(0);
}
defer:
if (nob_file_exists(TEMPORARY_NOB_OUT))
remove(TEMPORARY_NOB_OUT);
nob_cmd_free(cmd);
nob_sb_free(sb);
return result;
}
#endif
#endif
int check_prerequisites() {
// Using everything which are available to use.
Nob_File_Paths required_bins = {0};
nob_cmd_append(&required_bins, git_exec, "--version");
#ifdef _WIN32
#define CMD_NOT_FOUND_EXIT_CODE 9009
nob_cmd_append(&required_bins, "link", "", cpp_compiler_exec, "", "lib", "");
#else
#define CMD_NOT_FOUND_EXIT_CODE 127
nob_cmd_append(&required_bins, CC, "--version", "ar", "--version", "ranlib", "--version");
nob_cmd_append(&required_bins, cpp_compiler_exec, "--version", c_compiler_exec, "--version");
#if defined(__APPLE__) || defined(__MACH__)
nob_cmd_append(&required_bins, obj_cpp_compiler_exec, "--version");
#endif
#endif
int result = 1;
if (!nob_mkdir_if_not_exists("./build"))
nob_return_defer(0);
Nob_Cmd cmd = {0};
for (size_t i = 0; i < required_bins.count; i += 2) {
cmd.count = 0;
const char* bin = required_bins.items[i];
nob_cmd_append(&cmd, bin, required_bins.items[i + 1]);
EXIT_CODE_TYPE exit_code = 0;
if (nob_cmd_run_sync_silently(cmd, &exit_code) || exit_code != CMD_NOT_FOUND_EXIT_CODE) {
nob_log(NOB_INFO, "%s [OK]", bin);
}
else {
nob_log(NOB_ERROR,
"Couldn't find %s, make sure %s is in your PATH environment variable.", bin,
bin);
nob_return_defer(0);
}
}
#ifdef _WIN32
#else
#if defined(__APPLE__) || defined(__MACH__)
static const int gpp_min_version = 10;
static const int gpp_max_version = 69;
const char* new_gpp_bin = NULL;
for (int ver = gpp_min_version; ver <= gpp_max_version; ver++) {
const char* current_gpp_bin = nob_temp_sprintf("g++-%d", ver);
cmd.count = 0;
nob_cmd_append(&cmd, current_gpp_bin, "--version");
EXIT_CODE_TYPE exit_code = 0;
if (nob_cmd_run_sync_silently(cmd, &exit_code) || exit_code != CMD_NOT_FOUND_EXIT_CODE) {
new_gpp_bin = current_gpp_bin;
break;
}
}
if (new_gpp_bin) {
cpp_compiler_exec = strdup(new_gpp_bin); // memory leak, don't care for now..
nob_log(NOB_INFO, "Using '%s' as c++ compiler.", cpp_compiler_exec);
}
#endif
nob_return_defer(populate_lib_inc_dirs());
#endif
defer:
nob_cmd_free(cmd);
nob_da_free(required_bins);
nob_temp_reset();
return result;
}
int check_externels() {
int result = 1;
nob_log(NOB_INFO, "Checking external projects");
if (!nob_mkdir_if_not_exists(EXTERNALS_DIR))
return 0;
for (size_t i = 0, n = NOB_ARRAY_LEN(externals); i < n; i++) {
if (!externals[i].acquire(&externals[i]))
nob_return_defer(0);
if (!externals[i].build(&externals[i]))
nob_return_defer(0);
}
nob_temp_reset();
defer:
return result;
}
int build_main() {
static const char* source_dir = "src";
static const char* build_path = BUILD__PATH("RMB");
static const char* source_dirs[] = {"src", "src/views", "src/Utils"};
char* libglfw3_path = "";
char* imgui_objs_path = "";
const char* main_path = nob_temp_sprintf("%s/" MAIN BUILD_OUT_SUFFIX, build_path);
if (!nob_mkdir_recursively_if_not_exists(build_path)) {
return 0;
}
int result = 1;
Nob_Cmd cmd = {0};
Nob_Procs procs = {0};
Nob_File_Paths object_files = {0};
Nob_File_Paths srcs = {0};
Nob_File_Paths includes = {0};
for (size_t i = 0; i < NOB_ARRAY_LEN(source_dirs); i++) {
const char* src_dir = source_dirs[i];
if (!nob_find_files_with_extensions(src_dir, source_exts, NOB_ARRAY_LEN(source_exts),
&srcs)) {
nob_return_defer(0);
}
nob_da_append(&includes, src_dir);
}
for (size_t i = 0; i < NOB_ARRAY_LEN(externals); i++) {
const char* dir = default_external_dir(&externals[i]);
nob_da_append(&includes, nob_temp_strdup(dir));
nob_da_append(&includes, nob_temp_sprintf("%s/include", dir));
nob_da_append(&includes, nob_temp_sprintf("%s/backends", dir));
if (strcmp(externals[i].name, "glfw") == 0) {
libglfw3_path = nob_temp_sprintf(BUILD__PATH("%s"), dir);
}
else if (strcmp(externals[i].name, "imgui") == 0) {
imgui_objs_path = nob_temp_sprintf(BUILD__PATH("%s"), dir);
}
}
#if defined(__APPLE__) || defined(__MACH__)
nob_cmd_append(&cmd, obj_cpp_compiler_exec);
#else
nob_cmd_append(&cmd, cpp_compiler_exec);
#endif
CompileObjsOptions compile_objs_options = {.input_dir = source_dir,
.build_dir = build_path,
#ifdef _WIN32
.pdb_file = NULL,
.multiple_pdb_writer = true
#endif
};
default_platform_specific_compile_options(&cmd, &compile_objs_options);
compile_objs_options.force_rebuild = true;
#ifdef _WIN32
#define PLATFORM_SPECIFIC_DIR "src/win"
nob_cmd_append(&cmd, "-W4", "-std:c++20", "-EHsc");
#if !defined(BUILD_DEBUG)
nob_cmd_append(&cmd, "-GL", "-Oi");
#endif
libglfw3_path = nob_temp_sprintf("%s/glfw3.lib", libglfw3_path);
#else // _WIN32
#if defined(__APPLE__) || defined(__MACH__)
#define PLATFORM_SPECIFIC_DIR "src/macos"
nob_cmd_append(&cmd, "-I/usr/local/include", "-I/opt/local/include", "-I/opt/homebrew/include");
#else // MACOS
#define PLATFORM_SPECIFIC_DIR "src/linux"
#endif // UNIX/LINUX
nob_cmd_append(&cmd, "-Wall", "-std=c++20", "-Wno-class-memaccess");
libglfw3_path = nob_temp_sprintf("%s/libglfw3.a", libglfw3_path);
#endif // END_OF_PLATFORM_SPECIFIC
nob_da_append(&includes, PLATFORM_SPECIFIC_DIR);
for (size_t i = 0; i < includes.count; i++) {
nob_cmd_append(&cmd, nob_temp_sprintf("-I%s", includes.items[i]));
}
// compiling objective-cpp code using apple's clang compiler
#if defined(__APPLE__) || defined(__MACH__)
nob_log(NOB_INFO, "Compiling Objective-c/cpp files...");
// It would've been nice if we could partially create/edit current cmd bucket/arg list...
size_t cmd_checkpoint = cmd.count;
// Note: We're cross-linking clang compiled objects with gnu linker, please be cautious.
nob_cmd_append(&cmd, "-Wno-unknown-warning-option", "-Wno-unused-command-line-argument");
static const char* obj_c_exts[] = {".m", ".mm"};
Nob_File_Paths obj_srcs = {0};
if (!nob_find_files_with_extensions(PLATFORM_SPECIFIC_DIR, obj_c_exts,
NOB_ARRAY_LEN(obj_c_exts), &obj_srcs)) {
nob_return_defer(0);
}
if (!compile_obj_files(&cmd, &compile_objs_options, obj_srcs.items, obj_srcs.count,
&object_files)) {
nob_return_defer(0);
}
// special file type(decided by me) to create bridge between objective-c and native-cpp
obj_srcs.count = 0;
static const char* cm_exts[] = {".cm"};
if (!nob_find_files_with_extensions(PLATFORM_SPECIFIC_DIR, cm_exts, NOB_ARRAY_LEN(cm_exts),
&obj_srcs)) {
nob_return_defer(0);
}
nob_cmd_append(&cmd, "-x", "c++");
if (!compile_obj_files(&cmd, &compile_objs_options, obj_srcs.items, obj_srcs.count,
&object_files)) {
nob_return_defer(0);
}
cmd.count = cmd_checkpoint;
cmd.items[0] = cpp_compiler_exec;
#endif
if (!nob_find_files_with_extensions(PLATFORM_SPECIFIC_DIR, source_exts,
NOB_ARRAY_LEN(source_exts), &srcs)) {
nob_return_defer(0);
}
if (!compile_obj_files(&cmd, &compile_objs_options, srcs.items, srcs.count, &object_files)) {
nob_return_defer(0);