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#include <sys/stat.h>
#include <sys/types.h>
#include <errno.h>
#include <dirent.h>
#include <err.h>
#include <fcntl.h>
#include <getopt.h>
#include <limits.h>
#include <stdio.h>
#include <string.h>
#include <unistd.h>
#ifdef DEBUG
#define debug_printf(args...) fprintf(stderr, ## args)
#else
#define debug_printf(args...)
#endif
int is_newer(struct timespec a, struct timespec b)
{
return (a.tv_sec == b.tv_sec) ? a.tv_nsec > b.tv_nsec : a.tv_sec > b.tv_sec;
}
int cache_invalid(int dirfd, const char *filename)
{
struct stat cache;
DIR *dir;
struct dirent *ent;
int r = 0;
if (fstatat(dirfd, filename, &cache, 0) == -1)
return 1;
dir = fdopendir(dirfd);
if (dir == NULL)
err(1, "fdopendir");
while(1) {
char buf[PATH_MAX];
struct stat apkbuild;
errno = 0;
ent = readdir(dir);
if (ent == NULL) {
if (errno != 0)
err(1, "readdir");
break;
}
if (ent->d_name[0] == '.')
continue;
snprintf(buf, sizeof(buf), "%s/APKBUILD", ent->d_name);
if (fstatat(dirfd, buf, &apkbuild, 0) == -1) {
warn("%s", buf);
continue;
}
if (is_newer(apkbuild.st_mtim, cache.st_mtim)) {
debug_printf("%s\n", buf);
r = 1;
break;
}
}
closedir(dir);
return r;
}
int main(int argc, char *argv[])
{
static struct option opts[] = {
{"verbose", no_argument, 0, 'v' },
{"force", no_argument, 0, 'f' },
{ 0, 0, 0, 0}
};
int i, c, verbose=0;
const char *cachefile = ".aports.cache.json";
char dirpath_buf[PATH_MAX];
char *dirpath = dirpath_buf;
int dirfd;
while ((c = getopt_long(argc, argv, "fv", opts, &i)) != -1) {
switch(c) {
case 'v':
verbose = 1;
break;
}
}
if (verbose)
printf("optind=%i, argc=%i\n", optind, argc);
if (optind < argc) {
dirpath = argv[optind];
} else {
dirpath = getcwd(dirpath_buf, sizeof(dirpath_buf));
}
dirfd = open(dirpath, O_DIRECTORY);
if (dirfd < 0)
err(1, "%s", dirpath);
if (cache_invalid(dirfd, cachefile))
printf("refresh\n");
return 0;
}
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