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/* ISC license. */
#include <skalibs/bsdsnowflake.h>
#include <string.h>
#include <unistd.h>
#include <errno.h>
#include <skalibs/stat.h>
#include <skalibs/direntry.h>
#include <skalibs/posixplz.h>
#include <skalibs/strerr.h>
#include <skalibs/djbunix.h>
#include <s6-rc/repo.h>
static inline int sub_cleanup (char const *sub)
{
size_t sublen = strlen(sub) ;
DIR *dir = opendir(sub) ;
if (!dir) return 0 ;
for (;;)
{
size_t len ;
direntry *d ;
errno = 0 ;
d = readdir(dir) ;
if (!d) break ;
if (d->d_name[0] == '.') continue ;
len = strlen(d->d_name) ;
{
char fn[sublen + len + 2] ;
memcpy(fn, sub, sublen) ;
fn[sublen] = '/' ;
memcpy(fn + sublen + 1, d->d_name, len + 1) ;
if (access(fn, F_OK) == 0)
{
struct stat st ;
if (lstat(fn, &st) == -1) break ;
if (!S_ISLNK(st.st_mode)) rm_rf(fn) ;
}
else if (errno != ENOENT)
{
strerr_warnfu2sys("access ", fn) ;
break ;
}
else unlink_void(fn) ;
}
}
dir_close(dir) ;
return !errno ;
}
static inline int set_cleanup (char const *set)
{
size_t setlen = strlen(set) ;
DIR *dir ;
{
char bundle[setlen + 8] ;
memcpy(bundle, set, setlen) ;
memcpy(bundle + setlen, "/bundle", 8) ;
rm_rf(bundle) ;
}
dir = opendir(set) ;
if (!dir) return 0 ;
for (;;)
{
size_t len ;
direntry *d ;
errno = 0 ;
d = readdir(dir) ;
if (!d) break ;
if (d->d_name[0] == '.') continue ;
len = strlen(d->d_name) ;
{
char fn[setlen + len + 2] ;
memcpy(fn, set, setlen) ;
fn[setlen] = '/' ;
memcpy(fn + setlen + 1, d->d_name, len + 1) ;
if (!sub_cleanup(fn)) break ;
}
}
dir_close(dir) ;
return !errno ;
}
int s6rc_repo_sources_cleanup (char const *repo)
{
DIR *dir ;
size_t repolen = strlen(repo) ;
unsigned int nsets = 0 ;
char sets[repolen + 9] ;
memcpy(sets, repo, repolen) ;
memcpy(sets + repolen, "/sources", 9) ;
dir = opendir(sets) ;
if (!dir) return 0 ;
for (;;)
{
size_t len ;
direntry *d ;
errno = 0 ;
d = readdir(dir) ;
if (!d) break ;
if (d->d_name[0] == '.') continue ;
len = strlen(d->d_name) ;
{
char fn[repolen + len + 10] ;
memcpy(fn, sets, repolen + 8) ;
fn[repolen + 8] = '/' ;
memcpy(fn + repolen + 9, d->d_name, len + 1) ;
if (!set_cleanup(fn)) break ;
nsets++ ;
}
}
dir_close(dir) ;
return errno ? -1 : nsets ;
}
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