db_compile.c

/* 
 * db_compile.c
 * 
 * Copyright (c) 2018-2019 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 <string.h>
#include <sys/stat.h>
#include <sys/types.h>

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

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

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

int db_compile(char const *workdir, char const *tree, char const *treename, char const *const *envp)
{
	int wstat, r ;
	pid_t pid ;
	size_t wlen = strlen(workdir), treelen = strlen(treename) ;
	
	char dest[wlen + SS_DB_LEN + 1 + treelen + 1] ;
	memcpy(dest,workdir,wlen) ;
	memcpy(dest + wlen,SS_DB,SS_DB_LEN) ;
	dest[wlen + SS_DB_LEN] = '/' ;
	memcpy(dest + wlen + SS_DB_LEN + 1,treename,treelen) ;
	dest[wlen + SS_DB_LEN + 1 + treelen] = 0 ;
	
	char src[wlen + SS_DB_LEN + SS_SRC_LEN + 1] ;
	memcpy(src,workdir,wlen) ;
	memcpy(src + wlen,SS_DB,SS_DB_LEN) ;
	memcpy(src + wlen + SS_DB_LEN,SS_SRC,SS_SRC_LEN) ;
	src[wlen + SS_DB_LEN + SS_SRC_LEN] = 0 ;
	
	r = scan_mode(dest,S_IFDIR) ;
	if (r)
	{
		if (rm_rf(dest) < 0)
			log_warnusys_return(LOG_EXIT_ZERO,"remove: ", dest) ;
	}
				
	char const *newargv[7] ;
	unsigned int m = 0 ;
	char fmt[UINT_FMT] ;
	fmt[uint_fmt(fmt, VERBOSITY)] = 0 ;
	
	newargv[m++] = S6RC_BINPREFIX "s6-rc-compile" ;
	newargv[m++] = "-v" ;
	newargv[m++] = fmt ;
	newargv[m++] = "--" ;
	newargv[m++] = dest ;
	newargv[m++] = src ;
	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_warnusys_return(LOG_EXIT_ZERO,"compile: ",dest) ;
		
	return 1 ;
}