Simple CMake resource generator.
- Generates
7ziporzipc file resource. - Generates single c file resource.
- Resources are recompiled automatically on each change on
makecall.
cmake_minimum_required(VERSION 3.12)
include("${CMAKE_SOURCE_DIR}/cmake/ResourceCreator.cmake")
# creates zipped resource from arbitrary number of files
add_resource(resourceA
ARCHIVE zip
file1.txt # relative path
${CMAKE_CURRENT_SOURCE_DIR}/file2.txt # absolute path
${CMAKE_CURRENT_BINARY_DIR}/generated_file.txt
)
# creates zipped resource preserving structure from arbitrary number of files
add_resource(rscB
VAR resourceB # set c file variable name, otherwise derived from resource name
ARCHIVE zip # zip or 7zip
RELATIVE "${CMAKE_CURRENT_SOURCE_DIR}" # if RELATIVE is set, then file dir structure is preserved
# relatively to this directory (all files must be inside)
file1.txt
data/file2.txt
deta/nested/file3.txt
)
# creates single file resource (raw, unpacked)
add_resource(resourceC file1.txt)
# creates executable including all created resources
add_executable(app main.c)
target_link_libraries(app resourceA rscB resourceC)#include <stdio.h>
#include <stdlib.h>
/* include unzip lib of your choice, eg. */
/* https://github.com/isRyven/nozip */
#include "nozip.h"
/* all resources are created as separate c files with appropriate var names */
/* extern include them inside of you main file */
extern const unsigned char resourceA[];
extern const unsigned int resourceA_length;
extern const unsigned char resourceB[];
extern const unsigned int resourceB_length;
extern const unsigned char resourceC[];
extern const unsigned int resourceC_length;
int main(int argc, const char **argv)
{
nozip_t *zip;
nozip_entry_t *entries;
size_t num_entries;
/* open resourceA */
zip = malloc(nozip_size_mem((void*)resourceA, resourceA_length));
if (!zip || !(num_entries = nozip_read_mem(zip, (void*)resourceA, resourceA_length))) {
return 1;
}
entries = nozip_entries(zip);
printf("resourceA entries:\n");
for (size_t i = 0; i < num_entries; ++i) {
/* >> file1.txt */
/* >> file2.txt */
/* >> generated_file.txt */
printf("%s\n", (entries + i)->filename);
}
free(zip);
/* open resourceB */
zip = malloc(nozip_size_mem((void*)resourceB, resourceB_length));
if (!zip || !(num_entries = nozip_read_mem(zip, (void*)resourceB, resourceB_length))) {
return 1;
}
entries = nozip_entries(zip);
printf("resourceB entries:\n");
for (size_t i = 0; i < num_entries; ++i) {
/* >> file1.txt */
/* >> data/file2.txt */
/* >> deta/nested/file3.txt */
printf("%s\n", (entries + i)->filename);
}
free(zip);
/* Print contents of resourceC */
printf("resourceC contents:\n");
fwrite(resourceC, 1, resourceC_length, stdout);
putc('\n', stdout);
return 0;
} 
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