.

tools/nob.c

@@ -0,0 +1,478 @@
+#define COLLA_NO_CONDITION_VARIABLE 1
+#define COLLA_NO_NET 1
+
+#include "../colla.c"
+#include <windows.h>
+#include <direct.h>
+
+#if COLLA_TCC
+
+WINBASEAPI LPCH WINAPI GetEnvironmentStringsj(VOID);
+WINBASEAPI LPWCH WINAPI GetEnvironmentStringsW(VOID);
+WINBASEAPI BOOL WINAPI FreeEnvironmentStringsA(LPCH penv);
+WINBASEAPI BOOL WINAPI FreeEnvironmentStringsW(LPWCH penv);
+#ifdef UNICODE
+    #define GetEnvironmentStrings GetEnvironmentStringsW
+    #define FreeEnvironmentStrings FreeEnvironmentStringsW
+#else
+    #define GetEnvironmentStrings GetEnvironmentStringsA
+    #define FreeEnvironmentStrings FreeEnvironmentStringsA
+#endif
+
+#endif
+
+int strv_to_int(strview_t strv) {
+    instream_t in = istr_init(strv);
+    i32 value = 0;
+    if (!istr_get_i32(&in, &value)) {
+        return 0;
+    }
+    return value;
+}
+
+str_t find_vcvars_path(arena_t *arena) {
+    strview_t base_path = strv("C:/Program Files/Microsoft Visual Studio");
+    // find year
+    int year = 0;
+    {
+        arena_t tmp = *arena;
+
+        dir_t *dir = os_dir_open(&tmp, base_path);
+        if (!os_dir_is_valid(dir)) {
+            err("couldn't open directory (%v)", base_path);
+            return STR_EMPTY;
+        }
+
+        dir_foreach(&tmp, entry, dir) {
+            if (entry->type != DIRTYPE_DIR) continue;
+            
+            int number = strv_to_int(strv(entry->name));
+            if (number > year) year = number;
+        }
+    }
+
+    if (year == 0) {
+        err("couldn't find visual studio year version");
+        return STR_EMPTY;
+    }
+
+    str_t path_with_year = str_fmt(arena, "%v/%d", base_path, year);
+
+    // find edition
+    const char *editions[] = {
+        "Enterprise",
+        "Professional",
+        "Community",
+    };
+
+    int edition = 0;
+
+    for (; edition < arrlen(editions); ++edition) {
+        arena_t tmp = *arena;
+        str_t path = str_fmt(&tmp, "%v/%s", path_with_year, editions[edition]);
+        if (os_dir_exists(strv(path))) {
+            break;
+        }
+    }
+
+    if (edition >= arrlen(editions)) {
+        err("couldn't find visual studio edition");
+        return STR_EMPTY;
+    }
+
+    str_t vcvars = str_fmt(arena, "%v/%s/VC/Auxiliary/Build/vcvars64.bat", path_with_year, editions[edition]);
+
+    return vcvars;
+}
+
+bool load_cache(arena_t *arena) {
+    if (!os_file_exists(strv("build/cache.ini"))) {
+        err("build/cache.ini doesn't exist");
+        return false;
+    }
+
+    {
+        arena_t scratch = *arena;
+
+        ini_t ini = ini_parse(&scratch, strv("build/cache.ini"), &(iniopt_t){ .comment_vals = strv("#") });
+        initable_t *root = ini_get_table(&ini, INI_ROOT);
+        if (!root) fatal("fail");
+    
+        for_each (val, root->values) {
+            os_set_env_var(scratch, val->key, val->value);
+        }
+    }
+
+    return true;
+}
+
+typedef enum optimise_level_e {
+    OPTIMISE_NONE,
+    OPTIMISE_FAST,
+    OPTIMISE_SMALL,
+    OPTIMISE__COUNT,
+} optimise_level_e;
+
+typedef enum warning_level_e {
+    WARNING_NONE,
+    WARNING_DEFAULT,
+    WARNING_ALL,
+    WARNING__COUNT,
+} warning_level_e;
+
+typedef enum sanitiser_e {
+    SANITISER_NONE,
+    SANITISER_ADDRESS,
+    SANITISER__COUNT,
+} sanitiser_e;
+
+typedef enum cversion_e {
+    CVERSION_LATEST,
+    CVERSION_17,
+    CVERSION_11,
+    CVERSION__COUNT
+} cversion_e;
+
+typedef struct options_t options_t;
+struct options_t {
+    strview_t input_fname;
+    strview_t out_fname;
+    optimise_level_e optimisation;
+    warning_level_e warnings;
+    bool warnings_as_error;
+    sanitiser_e sanitiser;
+    bool fast_math;
+    bool debug;
+    strv_list_t *defines;
+    cversion_e cstd;
+    bool run;
+    strv_list_t *run_args;
+    bool is_cpp;
+};
+
+void print_help_message(void) {
+    puts("usage:");
+    puts("    -r / -run [input.c] [args...]  compiles and runs <input.c>, forwards <args...>");
+    puts("    -h / -help                     print this message");
+    puts("    -o / -out [filename]           output filename (default: build/<file>.exe)");
+    puts("    -O / -optimise [fast,small]    optimisation level");
+    puts("    -w / -warning [default,all]    warning level");
+    puts("         -werror                   treat warnings as errors");
+    puts("         -fsanitize [address]      turn on sanitiser");
+    puts("         -fastmath                 turn on fast math");
+    puts("    -g / -debug                    generate debug information");
+    puts("    -D / -define [key=value,key]   add a preprocessor define ");
+    puts("         -std [c11,c17,clatest]    select c standard (default: clatest)");
+    puts("         -cpp                      compile c++ instead of c");
+    exit(0);
+}
+
+optimise_level_e get_optimisation_level(strview_t arg) {
+    if (strv_equals(arg, strv("fast"))) {
+        return OPTIMISE_FAST;
+    }
+    else if (strv_equals(arg, strv("small"))) {
+        return OPTIMISE_SMALL;
+    }
+    warn("unrecognised optimisation level: (%v)", arg);
+    return OPTIMISE_NONE;
+}
+
+warning_level_e get_warning_level(strview_t arg) {
+    if (strv_equals(arg, strv("default"))) {
+        return WARNING_DEFAULT;
+    }
+    else if (strv_equals(arg, strv("all"))) {
+        return WARNING_ALL;
+    }
+    warn("unrecognised warning level: (%v)", arg);
+    return WARNING_NONE;
+}
+
+sanitiser_e get_sanitiser(strview_t arg) {
+    if (strv_equals(arg, strv("address"))) {
+        return SANITISER_ADDRESS;
+    }
+    warn("unrecognised sanitiser: (%v)", arg);
+    return SANITISER_NONE;
+}
+
+cversion_e get_cversion(strview_t arg) {
+    if (strv_equals(arg, strv("clatest"))) {
+        return CVERSION_LATEST;
+    }
+    else if (strv_equals(arg, strv("c17"))) {
+        return CVERSION_17;
+    }
+    else if (strv_equals(arg, strv("c11"))) {
+        return CVERSION_11;
+    }
+    warn("unrecognised c std version: (%v)", arg);
+    return CVERSION_LATEST;
+}
+
+options_t parse_options(arena_t *arena, int argc, char **argv) {
+    options_t out = {0};
+
+    for (int i = 1; i < argc; ++i) {
+        strview_t arg = strv(argv[i]);
+
+#define CHECK_OPT_BEG()        if (false) {}
+#define CHECK_OPT1(opt)        else if (strv_equals(arg, strv("-" opt)))
+#define CHECK_OPT2(small, big) else if (strv_equals(arg, strv("-" small)) || strv_equals(arg, strv("-" big)))
+
+#define GET_NEXT_ARG() (i + 1) < argc ? strv(argv[++i]) : STRV_EMPTY
+
+        CHECK_OPT_BEG()
+        CHECK_OPT2("h", "help") {
+            print_help_message();
+        }
+        CHECK_OPT2("o", "out") {
+            strview_t out_fname = GET_NEXT_ARG();
+            str_t out_fname_str = str_fmt(arena, "build/%v", out_fname);
+            out.out_fname = strv(out_fname_str);
+        }
+        CHECK_OPT2("O", "optimise") {
+            out.optimisation = get_optimisation_level(GET_NEXT_ARG());
+        }
+        CHECK_OPT2("w", "warning") {
+            out.warnings = get_warning_level(GET_NEXT_ARG());
+        }
+        CHECK_OPT1("werror") {
+            out.warnings_as_error = true;
+        }
+        CHECK_OPT1("fsanitize") {
+            out.sanitiser = get_sanitiser(GET_NEXT_ARG());
+        }
+        CHECK_OPT1("fastmath") {
+            out.fast_math = true;
+        }
+        CHECK_OPT2("g", "debug") {
+            out.debug = true;
+        }
+        CHECK_OPT2("D", "define") {
+            darr_push(arena, out.defines, GET_NEXT_ARG());
+        }
+        CHECK_OPT1("std") {
+            out.cstd = get_cversion(GET_NEXT_ARG());
+        }
+        CHECK_OPT1("cpp") {
+            out.is_cpp = true;
+        }
+        CHECK_OPT2("r", "run") {
+            out.run = true;
+            out.input_fname = GET_NEXT_ARG();
+            for (i += 1; i < argc; ++i) {
+                darr_push(arena, out.run_args, strv(argv[i]));
+            }
+        }
+        else {
+            out.input_fname = arg;
+        }
+    }
+
+#undef CHECK_OPT_BEG
+#undef CHECK_OPT1
+#undef CHECK_OPT2
+#undef GET_NEXT_ARG
+
+    if (strv_is_empty(out.out_fname)) {
+        strview_t name;
+        os_file_split_path(out.input_fname, NULL, &name, NULL);
+        str_t out_fname = str_fmt(arena, "build\\%v", name);
+        out.out_fname = strv(out_fname);
+    }
+
+    return out;
+}
+
+void cl_print_line(arena_t scratch, strview_t line, strview_t substr, strview_t col) {
+    usize sub_beg = strv_find_view(line, substr, 0);
+
+    strview_t file_part = strv_trim(strv_sub(line, 0, sub_beg));
+    strview_t sub_part = strv_sub(line, sub_beg, STR_END);
+
+    usize last_beg = strv_find(sub_part, ':', 0) + 1;
+
+    strview_t last_part = strv_trim(strv_sub(sub_part, last_beg, STR_END));
+    sub_part = strv_sub(sub_part, 0, last_beg);
+
+    pretty_print(scratch,
+        "<%v>%v</>\n"
+        "  %v %v\n",
+        col,
+        sub_part,
+        file_part,
+        last_part
+    );
+}
+
+int main(int argc, char **argv) {
+    os_init();
+
+    arena_t arena = arena_make(ARENA_VIRTUAL, GB(1));
+
+    if (argc < 2) {
+        print_help_message();
+    }
+
+    options_t opt = parse_options(&arena, argc, argv);
+
+    if (!os_dir_exists(strv("build/"))) {
+        info("creating build folder");
+        _mkdir("build");
+    }
+
+    if (!os_file_exists(strv("build/cache.ini"))) {
+        info("couldn't find cache.ini, creating it now");
+
+        arena_t scratch = arena;
+        str_t vcvars_path = find_vcvars_path(&scratch);
+
+        os_cmd_t *cmd = NULL;
+        darr_push(&scratch, cmd, strv(vcvars_path));
+        darr_push(&scratch, cmd, strv("&&"));
+        darr_push(&scratch, cmd, strv("set"));
+        darr_push(&scratch, cmd, strv(">"));
+        darr_push(&scratch, cmd, strv("build\\cache.ini"));
+
+        if (!os_run_cmd(scratch, cmd, NULL)) { 
+            fatal("failed to run vcvars64.bat");
+            os_abort(1);
+        }
+    }
+
+    {
+        arena_t scratch = arena;
+        
+        if (!load_cache(&scratch)) {
+            os_abort(1);
+        }
+        
+        os_cmd_t *cmd = NULL;
+
+        darr_push(&scratch, cmd, strv("cl"));
+        darr_push(&scratch, cmd, strv("/nologo"));
+        darr_push(&scratch, cmd, strv("/utf-8"));
+        if (!opt.is_cpp) {
+            darr_push(&scratch, cmd, strv("/TC"));
+        }
+
+        str_t output = str_fmt(&scratch, "/Fe:%v.exe", opt.out_fname);
+        str_t object = str_fmt(&scratch, "/Fo:%v.obj", opt.out_fname);
+        darr_push(&scratch, cmd, strv(output));
+        darr_push(&scratch, cmd, strv(object));
+
+        strview_t optimisations[OPTIMISE__COUNT] = {
+            strv("/Od"), // disabled
+            strv("/O2"), // fast code
+            strv("/O1"), // small code
+        };
+        darr_push(&scratch, cmd, optimisations[opt.optimisation]);
+        
+        strview_t warnings[WARNING__COUNT] = {
+            strv("/W0"),
+            strv("/W3"),
+            strv("/W4"),
+        };
+        darr_push(&scratch, cmd, warnings[opt.warnings]);
+
+        if (opt.warnings_as_error) {
+            darr_push(&scratch, cmd, strv("/WX"));
+        }
+
+        if (opt.sanitiser) {
+            strview_t sanitisers[SANITISER__COUNT] = {
+                strv(""),
+                strv("/fsanitize=address"),
+            };
+            darr_push(&scratch, cmd, sanitisers[opt.sanitiser]);
+        }
+
+        if (opt.fast_math) {
+            darr_push(&scratch, cmd, strv("/fp:fast"));
+        }
+
+        if (opt.debug) {
+            darr_push(&scratch, cmd, strv("/Zi"));
+            darr_push(&scratch, cmd, strv("/D_DEBUG"));
+        }
+
+        for_each (def, opt.defines) {
+            for (int i = 0; i < def->count; ++i) {
+                str_t define = str_fmt(&scratch, "/D%v", def->items[i]);
+                darr_push(&scratch, cmd, strv(define));
+            }
+        }
+
+        strview_t cversion[CVERSION__COUNT] = {
+            strv("clatest"),
+            strv("c17"),
+            strv("c11"),
+        };
+
+        str_t cstd = str_fmt(&scratch, "/std:%v", cversion[opt.cstd]);
+        darr_push(&scratch, cmd, strv(cstd));
+
+        darr_push(&scratch, cmd, opt.input_fname);
+
+        // /LD -> create dynamic lib
+        // /LDd -> create debug dynamic lib
+        // /link
+        
+        oshandle_t hout = os_handle_zero();
+
+        bool compilation_result = os_run_cmd(
+            scratch, 
+            cmd,
+            &(os_cmd_options_t){ .out = &hout, }
+        );
+
+        str_t result = os_file_read_all_str_fp(&scratch, hout);
+
+        instream_t in = istr_init(strv(result));
+
+        while (!istr_is_finished(&in)) {
+            strview_t line = istr_get_line(&in);
+            if (strv_contains_view(line, strv("error"))) {
+                cl_print_line(scratch, line, strv("error"), strv("red"));
+            }
+            else if (strv_contains_view(line, strv("warning"))) {
+                cl_print_line(scratch, line, strv("warning"), strv("yellow"));
+            }
+            else {
+                if (compilation_result) {
+                    pretty_print(scratch, "<green>compiled:</> %v\n", line);
+                }
+                else {
+                    pretty_print(scratch, "<blue>while compiling:</> %v\n", line);
+                }
+            }
+        }
+
+        if (!compilation_result) {
+            return 1;
+        }
+    }
+
+    if (opt.run) {
+        arena_t scratch = arena;
+        os_cmd_t *cmd = NULL;
+
+        darr_push(&scratch, cmd, opt.out_fname);
+
+        for_each (arg, opt.run_args) {
+            for (int i = 0; i < arg->count; ++i) {
+                darr_push(&scratch, cmd, arg->items[i]);
+            }
+        }
+
+        if (!os_run_cmd(scratch, cmd, NULL)) {
+            return 1;
+        }
+    }
+
+    arena_cleanup(&arena);
+
+    os_cleanup();
+}

tools/noblin.c

@@ -0,0 +1,308 @@
+#define COLLA_NO_CONDITION_VARIABLE 1
+#define COLLA_NO_NET 1
+
+#include "../colla.c"
+
+typedef enum optimise_level_e {
+    OPTIMISE_NONE,
+    OPTIMISE_FAST,
+    OPTIMISE_SMALL,
+    OPTIMISE__COUNT,
+} optimise_level_e;
+
+typedef enum warning_level_e {
+    WARNING_NONE,
+    WARNING_DEFAULT,
+    WARNING_ALL,
+    WARNING__COUNT,
+} warning_level_e;
+
+typedef enum sanitiser_e {
+    SANITISER_NONE,
+    SANITISER_ADDRESS,
+    SANITISER__COUNT,
+} sanitiser_e;
+
+typedef enum cversion_e {
+    CVERSION_LATEST,
+    CVERSION_17,
+    CVERSION_11,
+    CVERSION__COUNT
+} cversion_e;
+
+typedef struct options_t options_t;
+struct options_t {
+    strview_t input_fname;
+    strview_t out_fname;
+    optimise_level_e optimisation;
+    warning_level_e warnings;
+    bool warnings_as_error;
+    sanitiser_e sanitiser;
+    bool fast_math;
+    bool debug;
+    strv_list_t *defines;
+    cversion_e cstd;
+    bool run;
+    strv_list_t *run_args;
+    bool is_cpp;
+};
+
+void print_help_message(void) {
+    puts("usage:");
+    puts("    -r / -run [input.c] [args...]  compiles and runs <input.c>, forwards <args...>");
+    puts("    -h / -help                     print this message");
+    puts("    -o / -out [filename]           output filename (default: build/<file>.exe)");
+    puts("    -O / -optimise [fast,small]    optimisation level");
+    puts("    -w / -warning [default,all]    warning level");
+    puts("         -werror                   treat warnings as errors");
+    puts("         -fsanitize [address]      turn on sanitiser");
+    puts("         -fastmath                 turn on fast math");
+    puts("    -g / -debug                    generate debug information");
+    puts("    -D / -define [key=value,key]   add a preprocessor define ");
+    puts("         -std [c11,c17,clatest]    select c standard (default: clatest)");
+    puts("         -cpp                      compile c++ instead of c");
+    exit(0);
+}
+
+optimise_level_e get_optimisation_level(strview_t arg) {
+    if (strv_equals(arg, strv("fast"))) {
+        return OPTIMISE_FAST;
+    }
+    else if (strv_equals(arg, strv("small"))) {
+        return OPTIMISE_SMALL;
+    }
+    warn("unrecognised optimisation level: (%v)", arg);
+    return OPTIMISE_NONE;
+}
+
+warning_level_e get_warning_level(strview_t arg) {
+    if (strv_equals(arg, strv("default"))) {
+        return WARNING_DEFAULT;
+    }
+    else if (strv_equals(arg, strv("all"))) {
+        return WARNING_ALL;
+    }
+    warn("unrecognised warning level: (%v)", arg);
+    return WARNING_NONE;
+}
+
+sanitiser_e get_sanitiser(strview_t arg) {
+    if (strv_equals(arg, strv("address"))) {
+        return SANITISER_ADDRESS;
+    }
+    warn("unrecognised sanitiser: (%v)", arg);
+    return SANITISER_NONE;
+}
+
+cversion_e get_cversion(strview_t arg) {
+    if (strv_equals(arg, strv("clatest"))) {
+        return CVERSION_LATEST;
+    }
+    else if (strv_equals(arg, strv("c17"))) {
+        return CVERSION_17;
+    }
+    else if (strv_equals(arg, strv("c11"))) {
+        return CVERSION_11;
+    }
+    warn("unrecognised c std version: (%v)", arg);
+    return CVERSION_LATEST;
+}
+
+options_t parse_options(arena_t *arena, int argc, char **argv) {
+    options_t out = {0};
+
+    for (int i = 1; i < argc; ++i) {
+        strview_t arg = strv(argv[i]);
+
+#define CHECK_OPT_BEG()        if (false) {}
+#define CHECK_OPT1(opt)        else if (strv_equals(arg, strv("-" opt)))
+#define CHECK_OPT2(small, big) else if (strv_equals(arg, strv("-" small)) || strv_equals(arg, strv("-" big)))
+
+#define GET_NEXT_ARG() (i + 1) < argc ? strv(argv[++i]) : STRV_EMPTY
+
+        CHECK_OPT_BEG()
+        CHECK_OPT2("h", "help") {
+            print_help_message();
+        }
+        CHECK_OPT2("o", "out") {
+            strview_t out_fname = GET_NEXT_ARG();
+            str_t out_fname_str = str_fmt(arena, "build/%v", out_fname);
+            out.out_fname = strv(out_fname_str);
+        }
+        CHECK_OPT2("O", "optimise") {
+            out.optimisation = get_optimisation_level(GET_NEXT_ARG());
+        }
+        CHECK_OPT2("w", "warning") {
+            out.warnings = get_warning_level(GET_NEXT_ARG());
+        }
+        CHECK_OPT1("werror") {
+            out.warnings_as_error = true;
+        }
+        CHECK_OPT1("fsanitize") {
+            out.sanitiser = get_sanitiser(GET_NEXT_ARG());
+        }
+        CHECK_OPT1("fastmath") {
+            out.fast_math = true;
+        }
+        CHECK_OPT2("g", "debug") {
+            out.debug = true;
+        }
+        CHECK_OPT2("D", "define") {
+            darr_push(arena, out.defines, GET_NEXT_ARG());
+        }
+        CHECK_OPT1("std") {
+            out.cstd = get_cversion(GET_NEXT_ARG());
+        }
+        CHECK_OPT1("cpp") {
+            out.is_cpp = true;
+        }
+        CHECK_OPT2("r", "run") {
+            out.run = true;
+            out.input_fname = GET_NEXT_ARG();
+            for (i += 1; i < argc; ++i) {
+                darr_push(arena, out.run_args, strv(argv[i]));
+            }
+        }
+        else {
+            out.input_fname = arg;
+        }
+    }
+
+#undef CHECK_OPT_BEG
+#undef CHECK_OPT1
+#undef CHECK_OPT2
+#undef GET_NEXT_ARG
+
+    if (strv_is_empty(out.out_fname)) {
+        strview_t name;
+        os_file_split_path(out.input_fname, NULL, &name, NULL);
+        str_t out_fname = str_fmt(arena, "build\\%v", name);
+        out.out_fname = strv(out_fname);
+    }
+
+    return out;
+}
+
+int main(int argc, char **argv) {
+    os_init();
+
+    arena_t arena = arena_make(ARENA_VIRTUAL, GB(1));
+
+    if (argc < 2) {
+        print_help_message();
+    }
+
+    options_t opt = parse_options(&arena, argc, argv);
+
+    if (!os_dir_exists(strv("build/"))) {
+        info("creating build folder");
+        mkdir("build", 755);
+    }
+
+    {
+        arena_t scratch = arena;
+        os_cmd_t *cmd = NULL;
+
+        if (opt.is_cpp) {
+            darr_push(&scratch, cmd, strv("c++"));
+        }
+        else {
+            darr_push(&scratch, cmd, strv("cc"));
+        }
+
+        str_t output = str_fmt(&scratch, "-o %v", opt.out_fname);
+        darr_push(&scratch, cmd, strv(output));
+
+        strview_t optimisations[OPTIMISE__COUNT] = {
+            strv("-O0"), // disabled
+            strv("-O3"), // fast code
+            strv("-Os"), // small code
+        };
+        darr_push(&scratch, cmd, optimisations[opt.optimisation]);
+        
+        strview_t warnings[WARNING__COUNT] = {
+            strv("-w"),
+            strv("-Weverything"),
+            strv("-Wpedantic"),
+        };
+        darr_push(&scratch, cmd, warnings[opt.warnings]);
+
+        if (opt.warnings_as_error) {
+            darr_push(&scratch, cmd, strv("-Werror"));
+        }
+
+        if (opt.sanitiser) {
+            strview_t sanitisers[SANITISER__COUNT] = {
+                strv(""),
+                strv("-fsanitize=address"),
+            };
+            darr_push(&scratch, cmd, sanitisers[opt.sanitiser]);
+        }
+
+        if (opt.fast_math) {
+            darr_push(&scratch, cmd, strv("-ffast-math"));
+        }
+
+        if (opt.debug) {
+            darr_push(&scratch, cmd, strv("-g"));
+            darr_push(&scratch, cmd, strv("-D_DEBUG"));
+        }
+
+        for_each (def, opt.defines) {
+            for (int i = 0; i < def->count; ++i) {
+                str_t define = str_fmt(&scratch, "-D%v", def->items[i]);
+                darr_push(&scratch, cmd, strv(define));
+            }
+        }
+
+        strview_t cversion[CVERSION__COUNT] = {
+            strv("c23"),
+            strv("c17"),
+            strv("c11"),
+        };
+
+        str_t cstd = str_fmt(&scratch, "-std %v", cversion[opt.cstd]);
+        darr_push(&scratch, cmd, strv(cstd));
+
+        darr_push(&scratch, cmd, opt.input_fname);
+
+        oshandle_t hout = os_handle_zero();
+
+        bool compilation_result = os_run_cmd(
+            scratch, 
+            cmd,
+            &(os_cmd_options_t){ .out = &hout, }
+        );
+       
+        str_t result = os_file_read_all_str_fp(&scratch, hout);
+
+        info("result:\n%v\n", result);
+
+        if (!compilation_result) {
+
+            return 1;
+        }
+    }
+
+    if (opt.run) {
+        arena_t scratch = arena;
+        os_cmd_t *cmd = NULL;
+
+        darr_push(&scratch, cmd, opt.out_fname);
+
+        for_each (arg, opt.run_args) {
+            for (int i = 0; i < arg->count; ++i) {
+                darr_push(&scratch, cmd, arg->items[i]);
+            }
+        }
+
+        if (!os_run_cmd(scratch, cmd, NULL)) {
+            return 1;
+        }
+    }
+
+    arena_cleanup(&arena);
+
+    os_cleanup();
+
+}

tools/unit_tests.c

@@ -0,0 +1,82 @@
+#include "../colla.c"
+
+#if COLLA_WIN
+#pragma section(".CRT$XCU", read)
+#endif
+
+#include "../tests/runner.h"
+
+#include "../tests/arena_tests.c"
+#include "../tests/core_tests.c"
+#include "../tests/net_tests.c"
+#include "../tests/os_tests.c"
+// #include "../tests/parsers_tests.c"
+// #include "../tests/pretty_print_tests.c"
+#include "../tests/str_tests.c"
+
+unit_test_t *test_head = NULL;
+unit_test_t *test_tail = NULL;
+const char *last_fail_reason = NULL;
+bool last_failed = false;
+
+void ut_register(const char *file, const char *name, void (*fn)(void)) {
+    strview_t fname;
+    os_file_split_path(strv(file), NULL, &fname, NULL);
+
+    fname = strv_remove_suffix(fname, arrlen("_tests") - 1);
+
+    unit_test_t *test = calloc(1, sizeof(unit_test_t));
+    test->name = strv(name);
+    test->fn = fn;
+    test->fname = fname;
+
+    olist_push(test_head, test_tail, test);
+}
+
+int main() {
+    colla_init(COLLA_ALL);
+    arena_t arena = arena_make(ARENA_VIRTUAL, GB(1));
+
+    strview_t last_file = STRV_EMPTY;
+    int success = 0;
+    int total = 0;
+
+    unit_test_t *test = test_head;
+    while (test) {
+        if (!strv_equals(test->fname, last_file)) {
+            last_file = test->fname;
+            pretty_print(arena, "<blue>> %v</>\n", test->fname);
+        }
+
+        test->fn();
+
+        total++;
+
+        if (last_failed) {
+            pretty_print(arena, "%4s<red>[X]</> %v: %s\n", "", test->name, last_fail_reason);
+        }
+        else {
+            pretty_print(arena, "%4s<green>[V]</> %v\n", "", test->name);
+            success++;
+        }
+
+        last_failed = false;
+
+        test = test->next;
+    }
+
+    print("\n");
+
+    strview_t colors[] = { 
+        cstrv("red"), 
+        cstrv("light_red"), 
+        cstrv("yellow"), 
+        cstrv("light_yellow"), 
+        cstrv("light_green"), 
+        cstrv("green"), 
+    };
+
+    usize col = success * (arrlen(colors) - 1) / total;
+
+    pretty_print(arena, "<%v>%d</>/<blue>%d</> tests passed\n", colors[col], success, total);
+}