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#if 0
gcc -fsanitize=address,leak gen_cmake.c -o gen_cmake && ./gen_cmake
exit
#endif
#include "include/kit.inl.h"
#include <stdio.h>
kit_allocator_t ALLOC;
typedef struct {
kit_status_t status;
int have_cmakelists;
} gen_result_t;
int is_header(str_t const file) {
return file.size > 2 && file.values[file.size - 2] == '.' &&
file.values[file.size - 1] == 'h';
}
int is_source(str_t const file) {
return file.size > 2 && file.values[file.size - 2] == '.' &&
file.values[file.size - 1] == 'c';
}
gen_result_t gen_cmakelists_for(str_t const target,
str_t const folder) {
gen_result_t result = { KIT_OK, 0 };
path_list_t const list = file_enum_folder(folder, ALLOC);
if (list.status != KIT_OK) {
printf("Error: file_enum_folder failed with code %d.\n",
list.status);
result.status = list.status;
return result;
}
int have_headers = 0;
int have_sources = 0;
int have_folders = 0;
FILE *out = NULL;
string_t cmakelists_path = path_join(folder, SZ("CMakeLists.txt"),
ALLOC);
DA_APPEND(cmakelists_path, '\0');
if (cmakelists_path.size == 0 ||
cmakelists_path.values[cmakelists_path.size - 1] != '\0') {
result.status = KIT_ERROR_BAD_ALLOC;
result.have_cmakelists = 0;
DA_DESTROY(cmakelists_path);
path_list_destroy(list);
return result;
}
#define OPEN_CMAKELISTS \
do { \
if (out == NULL) { \
out = fopen(cmakelists_path.values, "wt"); \
if (out == NULL) { \
result.status = 101; \
result.have_cmakelists = 0; \
DA_DESTROY(cmakelists_path); \
path_list_destroy(list); \
return result; \
} \
} \
} while (0)
#define CHECK_TYPE(type_) \
string_t const full_path_ = path_join(folder, WRAP_STR(item), \
ALLOC); \
int check_ = path_type(WRAP_STR(full_path_)) == (type_); \
DA_DESTROY(full_path_); \
if (!check_) \
continue
for (ptrdiff_t i = 0; i < list.files.size; i++) {
str_t const item = WRAP_STR(list.files.values[i]);
CHECK_TYPE(PATH_FILE);
if (!is_header(item))
continue;
OPEN_CMAKELISTS;
if (!have_headers)
fprintf(out, "target_sources(\n %*s\n PUBLIC",
(int) target.size, BS(target));
fprintf(
out,
"\n $<BUILD_INTERFACE:${CMAKE_CURRENT_LIST_DIR}/%*s>",
(int) item.size, BS(item));
have_headers = 1;
}
ptrdiff_t const LINE_LIMIT = 80;
ptrdiff_t line_length = LINE_LIMIT;
for (ptrdiff_t i = 0; i < list.files.size; i++) {
str_t const item = WRAP_STR(list.files.values[i]);
CHECK_TYPE(PATH_FILE);
if (!is_source(item))
continue;
OPEN_CMAKELISTS;
if (!have_headers && !have_sources)
fprintf(out, "target_sources(\n %*s\n PRIVATE",
(int) target.size, BS(target));
else if (!have_sources)
fprintf(out, "\n PRIVATE");
if (line_length + item.size > LINE_LIMIT) {
fprintf(out, "\n ");
line_length = 5;
}
fprintf(out, " %*s", (int) item.size, BS(item));
line_length += 1 + item.size;
have_sources = 1;
}
if (have_headers || have_sources)
fprintf(out, ")\n");
for (ptrdiff_t i = 0; i < list.files.size; i++) {
str_t const item = WRAP_STR(list.files.values[i]);
CHECK_TYPE(PATH_FOLDER);
string_t const subfolder = path_join(folder, item, ALLOC);
gen_result_t const r = gen_cmakelists_for(target,
WRAP_STR(subfolder));
DA_DESTROY(subfolder);
if (r.status != KIT_OK) {
result.status = r.status;
break;
}
if (!r.have_cmakelists)
continue;
OPEN_CMAKELISTS;
if (have_headers || have_sources)
fprintf(out, "\n");
fprintf(out, "add_subdirectory(%*s)\n", (int) item.size,
BS(item));
have_folders = 1;
}
if (out != NULL)
fclose(out);
DA_DESTROY(cmakelists_path);
path_list_destroy(list);
if (result.status == KIT_OK)
result.have_cmakelists = have_headers || have_sources ||
have_folders;
if (!result.have_cmakelists && out != NULL)
file_remove(WRAP_STR(cmakelists_path));
return result;
}
int main(int argc, char **argv) {
ALLOC = kit_alloc_default();
str_t const targets[] = { SZ("kit"), SZ("kit_test"),
SZ("kit_test_suite") };
str_t const folders[] = {
SZ("." PATH_DELIM "source" PATH_DELIM "kit"),
SZ("." PATH_DELIM "source" PATH_DELIM "kit_test"),
SZ("." PATH_DELIM "source" PATH_DELIM "test/unittests")
};
int ok = 1;
for (ptrdiff_t i = 0; i < sizeof folders / sizeof *folders; i++)
ok = ok &&
gen_cmakelists_for(targets[i], folders[i]).status == KIT_OK;
return ok ? 0 : 1;
}
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