mirror of
https://github.com/postgrespro/pg_probackup.git
synced 2024-12-01 09:51:43 +02:00
99 lines
2.3 KiB
C
99 lines
2.3 KiB
C
/*-------------------------------------------------------------------------
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*
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* init.c: manage backup catalog.
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*
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* Copyright (c) 2009-2011, NIPPON TELEGRAPH AND TELEPHONE CORPORATION
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*
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*-------------------------------------------------------------------------
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*/
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#include "pg_probackup.h"
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#include <unistd.h>
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#include <dirent.h>
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static void parse_postgresql_conf(const char *path, char **log_directory,
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char **archive_command);
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/*
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* selects function for scandir.
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*/
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static int selects(const struct dirent *dir)
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{
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return dir->d_name[0] != '.';
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}
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/*
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* Initialize backup catalog.
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*/
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int
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do_init(void)
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{
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char path[MAXPGPATH];
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char arclog_path_dir[MAXPGPATH];
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char *log_directory = NULL;
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char *archive_command = NULL;
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FILE *fp;
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uint64 _system_identifier;
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struct dirent **dp;
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int results;
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if (access(backup_path, F_OK) == 0)
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{
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results = scandir(backup_path, &dp, selects, NULL);
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if (results != 0)
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elog(ERROR, "backup catalog already exist and it's not empty");
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}
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/* create backup catalog root directory */
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dir_create_dir(backup_path, DIR_PERMISSION);
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/* create directories for backup of online files */
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join_path_components(path, backup_path, BACKUPS_DIR);
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dir_create_dir(path, DIR_PERMISSION);
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/* read postgresql.conf */
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if (pgdata)
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{
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join_path_components(path, pgdata, "postgresql.conf");
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parse_postgresql_conf(path, &log_directory, &archive_command);
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}
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_system_identifier = get_system_identifier(false);
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/* create pg_probackup.conf */
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join_path_components(path, backup_path, PG_RMAN_INI_FILE);
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fp = fopen(path, "wt");
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if (fp == NULL)
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elog(ERROR, "cannot create pg_probackup.conf: %s", strerror(errno));
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join_path_components(arclog_path_dir, backup_path, "wal");
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dir_create_dir(arclog_path_dir, DIR_PERMISSION);
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fprintf(fp, "system-identifier = %li\n", _system_identifier);
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fprintf(fp, "\n");
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fclose(fp);
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free(archive_command);
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free(log_directory);
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return 0;
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}
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static void
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parse_postgresql_conf(const char *path,
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char **log_directory,
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char **archive_command)
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{
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pgut_option options[] =
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{
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{ 's', 0, "log_directory" , NULL, SOURCE_ENV },
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{ 's', 0, "archive_command" , NULL, SOURCE_ENV },
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{ 0 }
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};
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options[0].var = log_directory;
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options[1].var = archive_command;
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pgut_readopt(path, options, LOG); /* ignore unknown options */
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}
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