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/* ISC license. */
#include <skalibs/bsdsnowflake.h>
#include <string.h>
#include <unistd.h>
#include <stdlib.h>
#include <errno.h>
#include <skalibs/stat.h>
#include <skalibs/direntry.h>
#include <skalibs/bytestr.h>
#include <skalibs/strerr.h>
#include <skalibs/stralloc.h>
#include <skalibs/genalloc.h>
#include <skalibs/djbunix.h>
#include <s6-rc/repo.h>
int s6rc_repo_makesetbundles (char const *repo, char const *set, unsigned int verbosity)
{
size_t repolen = strlen(repo) ;
size_t setlen = strlen(set) ;
stralloc sa = STRALLOC_ZERO ;
genalloc ga = GENALLOC_ZERO ;
int n ;
char src[repolen + 18] ;
char dst[repolen + 17 + setlen] ;
memcpy(dst, repo, repolen) ;
memcpy(dst + repolen, "/sources/", 9) ;
memcpy(dst + repolen + 9, set, setlen) ;
memcpy(dst + repolen + 9 + setlen, "/bundle", 8) ;
memcpy(src, dst, repolen + 9) ;
memcpy(src + repolen + 9, ".bundles", 9) ;
rm_rf_tmp(dst, &sa) ;
n = s6rc_repo_listsub(repo, set, s6rc_repo_subnames[0], &sa, &ga) ;
if (n < 0)
{
strerr_warnfu6sys("list sub ", s6rc_repo_subnames[0], " of set ", set, " in repository ", repo) ;
goto err ;
}
if (n)
{
DIR *dir ;
char const *masked[n] ;
char maskedstorage[sa.len] ;
memcpy(maskedstorage, sa.s, sa.len) ;
for (size_t i = 0 ; i < n ; i++) masked[i] = maskedstorage + genalloc_s(size_t, &ga)[i] ;
sa.len = 0 ;
genalloc_setlen(size_t, &ga, 0) ;
qsort(masked, n, sizeof(char const *), &str_cmp) ;
if (mkdir(dst, 02755) == -1)
{
strerr_warnfu2sys("mkdir ", dst) ;
goto errga ;
}
dir = opendir(src) ;
if (!dir)
{
strerr_warnfu2sys("opendir ", src) ;
goto err0 ;
}
for (;;)
{
int m, i = 0 ;
direntry *d ;
errno = 0 ;
d = readdir(dir) ;
if (!d) break ;
if (d->d_name[0] == '.') continue ;
sa.len = 0 ;
genalloc_setlen(size_t, &ga, 0) ;
m = s6rc_repo_listcontents(repo, d->d_name, &sa, &ga) ;
if (m < 0)
{
dir_close(dir) ;
goto err0 ;
}
for (; i < m ; i++)
{
char const *x = sa.s + genalloc_s(size_t, &ga)[i] ;
if (bsearch(x, masked, n, sizeof(char const *), &str_bcmp))
{
if (verbosity >= 3)
strerr_warni4x("skipping bundle ", d->d_name, " containing e.g. masked service ", x) ;
break ;
}
}
if (i < m) continue ;
size_t len = strlen(d->d_name) ;
char target[16 + len] ;
char fn[repolen + setlen + 18 + len] ;
memcpy(target, "../../.bundles/", 15) ;
memcpy(target + 15, d->d_name, len+1) ;
memcpy(fn, dst, repolen + setlen + 16) ;
fn[repolen + setlen + 16] = '/' ;
memcpy(fn + repolen + setlen + 17, d->d_name, len+1) ;
if (symlink(target, fn) == -1)
{
strerr_warnfu4sys("symlink ", target, " to ", fn) ;
dir_close(dir) ;
goto err0 ;
}
}
dir_close(dir) ;
if (errno)
{
strerr_warnfu2sys("readdir ", src) ;
goto err0 ;
}
}
else
{
int r ;
char realsrc[repolen + 28] ;
memcpy(realsrc, src, repolen + 9) ;
r = readlink(src, realsrc + repolen + 9, 17) ;
if (r == -1)
{
strerr_warnfu2sys("readlink ", src) ;
goto err0 ;
}
if (r != 16)
{
strerr_warnf2x("invalid symlink for ", src) ;
goto err0 ;
}
if (!hiercopy_tmp(realsrc, dst, &sa))
{
strerr_warnfu4sys("recursively copy ", realsrc, " to ", dst) ;
goto err0 ;
}
}
stralloc_free(&sa) ;
return 1 ;
err0:
{
int e = errno ;
rm_rf_tmp(dst, &sa) ;
errno = e ;
}
errga:
genalloc_free(size_t, &ga) ;
err:
stralloc_free(&sa) ;
return 0 ;
}
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