snapshot-master

Tools for suitable snapshot manipulation

Usage

As npm package

At first you should install npm package by:

$ npm install --save bem-site-snapshot-master

2 different strategies can be used via this package:

• Simple
• YDisk (snapshot operations performs also on Yandex Disk)

Both strategies have the same API.

API

constructor

You should create instance of snapshot master API class before using its methods.

var API = require('bem-site-snapshot-master').Simple,
api = new API(options);

// here you can call instance methods of API class
api.getSnapshots(function (err) {
    // TODO implement your handler
});

options - is object with available fields:

• path - full path to operation folder. (required).
• symlinks - array with available symlink names (required).
• logger - settings for logger module. See Logger for more details.

For YDisk API also yandex-disk options section needed:

'yandex-disk': {
    user: 'john.smith',
    password: '12345678',
    namespace: 'test'
}

getSnapshots

Returns list of snapshot folder names.

Arguments:

• {Function} callback function

getSnapshotNameForSymlink

Returns name of snapshot which given symlink is pointed to

Arguments:

• {String} symlink - name of symlink
• {Function} callback function

getSnapshotDataForSymlink

Retrieves data of snapshot which given symlink is pointed to and pipes it to destination stream

Arguments:

• {String} symlink - name of symlink
• {String} destination - destination stream
• {Function} callback function

getSnapshotChanges

Reads content of data.json file of given snapshot

Arguments:

• {String} snapshot - name of given snapshot
• {Function} callback function

switchSymlinkToSnapshot

Switch symlink to folder with given snapshot name

Arguments:

• {String} symlink - name of symlink
• {String} snapshot - name of given snapshot
• {Function} callback function

removeSnapshot

Removes snapshot by given snapshot name

Arguments:

• {String} snapshot - name of given snapshot
• {Function} callback function

Testing

Run tests:

npm run mocha

Run tests with istanbul coverage calculation:

npm run istanbul

Run codestyle verification (jshint and jscs)

npm run codestyle

Maintainer @tormozz48 Please send your questions and proposals to: [email protected]