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#include <alloca.h>
#include <stdlib.h>
#include <stddef.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <stdbool.h>
#include <stdint.h>
#include <inttypes.h>
#define NOB_IMPLEMENTATION
#define NOB_STRIP_PREFIX
#include "nob.h"
typedef struct da_strings_t DaStrings;
void * malloc0 (size_t size);
char * strip_extention (char * file_name);
char * c_to_o_ext (char * str);
DaStrings * compile_files (char * source_files[], size_t len, Nob_Cmd * cmd, Nob_Procs * procs);
void link_files (DaStrings * object_files,char * exec_name, Nob_Cmd * cmd);
void clean_files (char * source_files[], size_t len, Nob_Cmd * cmd);
#define EXEC_NAME "nobber"
const char * default_build_flags[] = {
"-std=gnu23",
"-Wall",
"-Wextra",
"-mtune=native",
"-g",
NULL,
};
#define default_build_flags_count (NOB_ARRAY_LEN(default_build_flags) - 1)
const char * default_linking_flags[] = {
"-lc",
NULL,
};
#define default_linking_flags_count (NOB_ARRAY_LEN(default_linking_flags) - 1)
const char * src_files[] = {
"src/main.c",
"src/foo.c",
NULL,
};
#define src_file_count (NOB_ARRAY_LEN(src_files) - 1)
//#define free0(ptr) \
// free (ptr); \
// ptr = NULL;
#define free0(ptr) \
memset ((void *)ptr, 0, sizeof ((void *) ptr)); \
free (ptr);
struct da_strings_t {
char ** items;
size_t count;
size_t capacity;
};
/**
* free the items in a list propperly!
* TODO: Need a version that takes a FreeFunc.
**/
#define da_free_items(Type, da) { \
for (Type *it = (da)->items; it < (da)->items + (da)->capacity; it++) { \
if (*it == NULL) break;\
free (*it);\
}\
free ((da)->items);\
}
int main (int argc, char ** argv) {
Nob_Procs procs = {0};
Nob_Cmd cmd = {0};
NOB_GO_REBUILD_URSELF (argc, argv);
[[maybe_unused]] const char * program_name = nob_shift_args(&argc, &argv);
const char * command_name = "build";
if (argc > 0) command_name = nob_shift_args(&argc, &argv);
if ((strcmp (command_name, "build")) == 0) {
DaStrings * objects = compile_files ((char **)src_files, src_file_count, &cmd, &procs);
nob_procs_wait_and_reset (&procs);
link_files (objects, EXEC_NAME, &cmd);
da_free_items (char *, objects);
free (objects);
} else if (strcmp (command_name, "clean") == 0) {
clean_files ((char**)src_files, src_file_count, &cmd);
} else {
nob_log (NOB_INFO, "Unknown command %s\n", command_name);
}
if (cmd.capacity) nob_cmd_free (cmd);
return 0;
}
/* ----------------- */
void * malloc0 (size_t size) {
void * out_val = malloc (size);
memset (out_val, 0, size);
return out_val;
}
// https://stackoverflow.com/questions/43163677/how-do-i-strip-a-file-extension-from-a-string-in-c
char * strip_extention (char * file_name) {
char * out_str = malloc(strlen(file_name) + 1);
strcpy (out_str, file_name);
char *end = out_str + strlen(out_str);
while (end > out_str && *end != '.' && *end != '\\' && *end != '/') {
--end;
}
if ((end > out_str && *end == '.') &&
(*(end - 1) != '\\' && *(end - 1) != '/')) {
*end = '\0';
}
return out_str;
}
char * c_to_o_ext (char * str) {
char * out_str = malloc (strlen(str) + 1);
char * tmp_str = strip_extention (str);
sprintf (out_str, "%s.o", tmp_str);
free (tmp_str);
return out_str;
}
DaStrings * compile_files (char * source_files[], size_t len, Nob_Cmd * cmd, Nob_Procs * procs) {
DaStrings * object_files = malloc0 (sizeof (DaStrings));
for (size_t i = 0; i < len; i++) {
cmd->count = 0;
if (source_files[i] == NULL) break;
nob_cmd_append (cmd, "cc");
nob_cmd_append (cmd, source_files[i]);
nob_da_append_many (cmd, default_build_flags, default_build_flags_count);
nob_cmd_append (cmd, "-c");
char * tmp_str = c_to_o_ext (source_files[i]);
nob_cmd_append (cmd, "-o", tmp_str);
char * s = malloc0 (strlen (tmp_str) + 1);
strcpy (s, tmp_str);
nob_da_append (object_files, s);
nob_cmd_run (cmd, .async = procs);
free0 (tmp_str);
}
return object_files;
}
void link_files (DaStrings * object_files,char * exec_name, Nob_Cmd * cmd) {
nob_cmd_append (cmd, "cc");
nob_cmd_append (cmd, "-o", exec_name);
nob_da_append_many (cmd, (char**)object_files->items, object_files->count);
nob_da_append_many (cmd, (char**) default_linking_flags, default_linking_flags_count);
nob_cmd_run (cmd);
}
void clean_files (char * source_files[], size_t len, Nob_Cmd * cmd) {
cmd->count = 0;
DaStrings tmp_strings = {0};
for (size_t i = 0; i < len; i++) {
if (source_files[i] == NULL) break;
char * tmp_file = strip_extention ((char *)source_files[i]);
char * tmp_obj_file = c_to_o_ext (tmp_file);
nob_da_append (&tmp_strings, tmp_obj_file);
tmp_file = c_to_o_ext (tmp_file);
free0 (tmp_file);
}
nob_cmd_append (cmd, "rm");
nob_da_append_many (cmd, tmp_strings.items, tmp_strings.count);
for (size_t i = 0; i < tmp_strings.count; i++) {
char * s = tmp_strings.items[i];
if (s == NULL) break;
}
nob_cmd_append (cmd, EXEC_NAME);
nob_cmd_run (cmd);
da_free_items (char *, &tmp_strings);
}
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