db_update.c

/*
 * db_update.c
 *
 * Copyright (c) 2018-2021 Eric Vidal <eric@obarun.org>
 *
 * All rights reserved.
 *
 * This file is part of Obarun. It is subject to the license terms in
 * the LICENSE file found in the top-level directory of this
 * distribution.
 * This file may not be copied, modified, propagated, or distributed
 * except according to the terms contained in the LICENSE file./
 */

#include <66/db.h>

#include <s6-rc/config.h>//S6RC_BINPREFIX

#include <sys/types.h>
#include <string.h>

#include <oblibs/log.h>
#include <oblibs/string.h>

#include <skalibs/types.h>
#include <skalibs/djbunix.h>

#include <66/utils.h>
#include <66/ssexec.h>

int db_update(char const *newdb, ssexec_t *info,char const *const *envp)
{
    log_flow() ;

    pid_t pid ;
    int wstat ;
    size_t newdblen = strlen(newdb) ;

    char db[newdblen + 1 + info->treename.len + 1] ;
    auto_strings(db, newdb, "/", info->treename.s) ;

    char newlive[info->livetree.len + 1 + info->treename.len + 1] ;
    auto_strings(newlive, info->livetree.s, "/", info->treename.s) ;

    char const *newargv[10] ;
    unsigned int m = 0 ;
    char fmt[UINT_FMT] ;
    fmt[uint_fmt(fmt, VERBOSITY)] = 0 ;

    newargv[m++] = S6RC_BINPREFIX "s6-rc-update" ;
    newargv[m++] = "-v" ;
    newargv[m++] = fmt ;
    newargv[m++] = "-l" ;
    newargv[m++] =  newlive ;
    newargv[m++] = "--" ;
    newargv[m++] = db ;
    newargv[m++] = 0 ;

    pid = child_spawn0(newargv[0],newargv,envp) ;
    if (waitpid_nointr(pid,&wstat, 0) < 0)
        log_warnusys_return(LOG_EXIT_ZERO,"wait for ",newargv[0]) ;

    if (wstat)
        log_warnu_return(LOG_EXIT_ZERO,"update: ",newlive," to ",db) ;

    return 1 ;
}