zordfsdb

Simple filesystem based key/value db. Provided as golang lib. Main idea is that user knows structure and gets value from known path. For operations that should search or do more should be used Nodes (golang structure).

Configuration

Init root directory.

Supported command

Commands can be split into value layer when you know the structure and node layer for deaper operations.

value layer commands

Get - to get value from path
Save - update or create value. Depends on path. If path directs into not existing parent object - will return false
Inc - increase abcex value
Dec - decrease abcex value
Now - save current datetime

node layer commands

GetNode - to get node. It can be object, list or value object. Returns false if not exist
CreatNode - create list (director) to add many same objects (structure should be controlled by user) or single object. Parent Node should exist
AddObject - add object to given list. Should assign abcex id
Length - get length of list
GetRandomNode - get random object from list
AddTemplate - add template to list to execute commands on AddObject

Node as Object commands

Node.Get - get object property value
Node.GetNodes - get object properties
Node.FixType - checks and sets object/list type

helper commands

Del - delete value, object or list by given path
Keys - return possible keys for object or ids for list
ExecuteCommands - execute commands separated by semicolon. See Commands section

dictionary

object - directory of key/value
list - directory of objects named by abcex as key
path - path to key or object or list

Commands

DB can run one or many commands separated by semicolon. Same commands are used in template to add new list object.

KEYS [path] - get list of existing properties/objects/lists
GET [path] - get value of property
INC [path] - increase abcex value in property
DEC [path] - decrease abcex value in property
NOW [path] - set value to datetime string in property
DEL [path] - remove property/object/list (no confirmation)
SAVE [path] [value] - set value to property
CREATE [path] - create list/object in path (parent path should exist)
ADD [path] - add abcex indexed object to list. Will return index
TEMPLATE [path] [template] - set template to list for object creation
INFO [path] - get all info about property/object/list
TREE [path] - draw db part in path with values
HELP - will print this help
QUIT - exit the shell

Last used path can be accessed by _

Last returned index (after ADD command) can be accessed by $

Short commands can be as:

KEYS(\K), GET(\G), INC(\I), DEC(\D), NOW(\N), DEL(\R), SAVE(\S), CREATE(\C), ADD(\A), HELP(\H), QUIT(\Q)

Template

If template is set it is used on AddObject method to execute commands on newly added object. Sintax is same as commands. Example:

NOW _.$.created; SAVE _.$.auto 1;

DEV

Run tests: $ go test

3 KiB Raw Blame History