bool
create_pg_dir(char *dir, bool force)
{
bool pg_dir = false;
/* Check this directory could be used as a PGDATA dir */
switch (check_dir(dir))
{
case 0:
/* dir not there, must create it */
log_info(_("creating directory \"%s\"...\n"), dir);
if (!create_dir(dir))
{
log_err(_("couldn't create directory \"%s\"...\n"),
dir);
return false;
}
break;
case 1:
/* Present but empty, fix permissions and use it */
log_info(_("checking and correcting permissions on existing directory %s ...\n"),
dir);
if (!set_dir_permissions(dir))
{
log_err(_("could not change permissions of directory \"%s\": %s\n"),
dir, strerror(errno));
return false;
}
break;
case 2:
/* Present and not empty */
log_warning(_("directory \"%s\" exists but is not empty\n"),
dir);
pg_dir = is_pg_dir(dir);
/*
* we use force to reduce the time needed to restore a node which
* turn async after a failover or anything else
*/
if (pg_dir && force)
{
/* Let it continue */
break;
}
else if (pg_dir && !force)
{
log_warning(_("\nThis looks like a PostgreSQL directory.\n"
"If you are sure you want to clone here, "
"please check there is no PostgreSQL server "
"running and use the --force option\n"));
return false;
}
return false;
default:
/* Trouble accessing directory */
log_err(_("could not access directory \"%s\": %s\n"),
dir, strerror(errno));
return false;
}
return true;
}
bool
create_pg_dir(char *path, bool force)
{
/* Check this directory can be used as a PGDATA dir */
switch (check_dir(path))
{
case DIR_NOENT:
/* directory does not exist, attempt to create it */
log_info(_("creating directory \"%s\"..."), path);
if (!create_dir(path))
{
log_error(_("unable to create directory \"%s\"..."),
path);
return false;
}
break;
case DIR_EMPTY:
/* exists but empty, fix permissions and use it */
log_info(_("checking and correcting permissions on existing directory \"%s\""),
path);
if (!set_dir_permissions(path))
{
log_error(_("unable to change permissions of directory \"%s\""), path);
log_detail("%s", strerror(errno));
return false;
}
break;
case DIR_NOT_EMPTY:
/* exists but is not empty */
log_warning(_("directory \"%s\" exists but is not empty"),
path);
if (is_pg_dir(path))
{
if (force == true)
{
log_notice(_("-F/--force provided - deleting existing data directory \"%s\""), path);
nftw(path, unlink_dir_callback, 64, FTW_DEPTH | FTW_PHYS);
return true;
}
return false;
}
else
{
if (force == true)
{
log_notice(_("deleting existing directory \"%s\""), path);
nftw(path, unlink_dir_callback, 64, FTW_DEPTH | FTW_PHYS);
return true;
}
return false;
}
break;
case DIR_ERROR:
log_error(_("could not access directory \"%s\": %s"),
path, strerror(errno));
return false;
}
return true;
}
