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#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <glob.h>
#define COMMAND "docker-compose"
int main(int argc, char** argv) {
// find the base file, with a preference for .yaml if both exist
char* base_file = NULL;
if (access("docker-compose.yml", R_OK) >= 0) {
base_file = "docker-compose.yml";
}
else if (access("docker-compose.yaml", R_OK) >= 0) {
base_file = "docker-compose.yaml";
}
else {
fprintf(stderr, "No 'docker-compose.yaml' or 'docker-compose.yml' file found, exiting\n");
exit(1);
}
// Get all files matching the given pattern in the current directory
glob_t glob_buf;
glob("docker-compose.*.yaml", 0, NULL, &glob_buf);
glob("docker-compose.*.yml", GLOB_APPEND, NULL, &glob_buf);
// Create the char* args array for all the arguments we'll be passing in
char* args[argc+2+(2*glob_buf.gl_pathc)];
// Set the base command and file
args[0] = COMMAND;
args[1] = "-f";
args[2] = base_file;
// For each path found by glob, append -f [PATH] to args
for(size_t i = 0; i < glob_buf.gl_pathc; i++) {
args[(2*i)+3] = "-f";
args[(2*i)+4] = glob_buf.gl_pathv[i];
}
// Append all command line arguments passed into composer
for (int i = 1; i < argc; i++) {
args[2+(2*glob_buf.gl_pathc)+i] = argv[i];
}
// Set the final arg to NULL as expected by execvp
args[argc+2+(2*glob_buf.gl_pathc)] = NULL;
// Run the command and print an error if it fails
int result = execvp(COMMAND, args);
if (result < 0) {
perror(COMMAND);
}
}
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