[PBCKP-129] change catchup logging levels (postgrespro#473)

* [PBCKP-129] change catchup logging level verbosity:
INFO – common information
LOG – same as INFO + info about files
VERBOSE – same as LOG + info about block and SQL queries

Author: kulaginm

src/catchup.c

@@ -936,7 +936,7 @@ do_catchup(const char *source_pgdata, const char *dest_pgdata, int num_threads,
 				join_path_components(fullpath, dest_pgdata, file->rel_path);
 
 				if (dry_run || fio_remove(FIO_LOCAL_HOST, fullpath, false) == 0)
-					elog(VERBOSE, "Deleted file \"%s\"", fullpath);
+					elog(LOG, "Deleted file \"%s\"", fullpath);
 				else
 					elog(ERROR, "Cannot delete redundant file in destination \"%s\": %s", fullpath, strerror(errno));
 

src/dir.c

@@ -1661,7 +1661,7 @@ cleanup_tablespace(const char *path)
 		join_path_components(fullpath, path, file->rel_path);
 
 		if (fio_remove(FIO_DB_HOST, fullpath, true) == 0)
-			elog(VERBOSE, "Deleted file \"%s\"", fullpath);
+			elog(LOG, "Deleted file \"%s\"", fullpath);
 		else
 			elog(ERROR, "Cannot delete file or directory \"%s\": %s", fullpath, strerror(errno));
 	}

src/merge.c

@@ -799,7 +799,7 @@ merge_chain(InstanceState *instanceState,
 			join_path_components(full_file_path, full_database_dir, full_file->rel_path);
 
 			if (fio_remove(FIO_BACKUP_HOST, full_file_path, true) == 0)
-				elog(VERBOSE, "Deleted \"%s\"", full_file_path);
+				elog(LOG, "Deleted \"%s\"", full_file_path);
 			else
 				elog(ERROR, "Cannot delete file or directory \"%s\": %s", full_file_path, strerror(errno));
 		}
@@ -1135,7 +1135,7 @@ remove_dir_with_files(const char *path)
 		join_path_components(full_path, path, file->rel_path);
 
 		if (fio_remove(FIO_LOCAL_HOST, full_path, true) == 0)
-			elog(VERBOSE, "Deleted \"%s\"", full_path);
+			elog(LOG, "Deleted \"%s\"", full_path);
 		else
 			elog(ERROR, "Cannot delete file or directory \"%s\": %s", full_path, strerror(errno));
 	}

src/restore.c

@@ -918,7 +918,7 @@ restore_chain(pgBackup *dest_backup, parray *parent_chain,
 				join_path_components(fullpath, pgdata_path, file->rel_path);
 
 				if (fio_remove(FIO_DB_HOST, fullpath, false) == 0)
-					elog(VERBOSE, "Deleted file \"%s\"", fullpath);
+					elog(LOG, "Deleted file \"%s\"", fullpath);
 				else
 					elog(ERROR, "Cannot delete redundant file \"%s\": %s", fullpath, strerror(errno));