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Using nob.h to check if nob executable need rebuild #13

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Using nob.h to check if nob executable need rebuild #13

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c537cf8
nob_header_path function
KillerxDBr Nov 7, 2024
d4caa6c
Using nob.h to check if nob.c needs rebuild
KillerxDBr Nov 7, 2024
b8403e7
nob_header_path test
KillerxDBr Nov 12, 2024
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6 changes: 6 additions & 0 deletions nob.c
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Original file line number Diff line number Diff line change
Expand Up @@ -29,6 +29,12 @@ bool build_and_run_test(Cmd *cmd, const char *test_name)
int main(int argc, char **argv)
{
NOB_GO_REBUILD_URSELF(argc, argv);

const char *nob_header = nob_header_path();
if(nob_file_exists(nob_header) != 1)
nob_log(NOB_ERROR, "nob.h not found at '%s'", nob_header);
else
nob_log(NOB_INFO, "nob.h found at '%s'", nob_header);

Cmd cmd = {0};

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8 changes: 7 additions & 1 deletion nob.h
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Expand Up @@ -465,6 +465,8 @@ bool nob_set_current_dir(const char *path);
void nob__go_rebuild_urself(const char *source_path, int argc, char **argv);
#define NOB_GO_REBUILD_URSELF(argc, argv) nob__go_rebuild_urself(__FILE__, argc, argv)

const char *nob_header_path(void);

typedef struct {
size_t count;
const char *data;
Expand Down Expand Up @@ -565,6 +567,8 @@ char *nob_win32_error_message(DWORD err);
// Any messages with the level below nob_minimal_log_level are going to be suppressed.
Nob_Log_Level nob_minimal_log_level = NOB_INFO;

const char *nob_header_path(void) {return __FILE__;}

#ifdef _WIN32

// Base on https://stackoverflow.com/a/75644008
Expand Down Expand Up @@ -617,7 +621,9 @@ void nob__go_rebuild_urself(const char *source_path, int argc, char **argv)
}
#endif

int rebuild_is_needed = nob_needs_rebuild1(binary_path, source_path);
const char* inputs[] = {source_path, nob_header_path()};
int rebuild_is_needed = nob_needs_rebuild(binary_path, inputs, NOB_ARRAY_LEN(inputs));
// int rebuild_is_needed = nob_needs_rebuild1(binary_path, source_path);
if (rebuild_is_needed < 0) exit(1); // error
if (!rebuild_is_needed) return; // no rebuild is needed

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