If you have a folder you want to backup and you want all old versions to be available as folders, you can copy files every time you do a backup, or you can make a new folder where everything unchanged is a symlink.
Install the normal npm way:
npm install symbolic-versionsSpecify the place to backup files (must be a created folder) and the folder to scan for changes:
var versioner = require('symbolic-versions')
var options = {
backupFolder: '/path/to/backup',
fileFolder: '/path/to/monitored/files'
}
versioner(options, function(err, version) {
// "version" is the folder created inside the "backupFolder"
})The function will return a promise, if you want to do that instead:
versioner(options)
.then(function(version) {
// "version" is the folder created inside the "backupFolder"
})
.catch(function(err) {
// handle errors
})There are only the three options:
options.backupFolder(required) - The complete path to the location used for backing up files.options.fileFolder(required) - The complete path to the location of the watched files.options.forceVersionWhenEmpty(optional, default false) - Whether a new version should be made if there have been no changes between the watched files and the most recent backup.
Suppose you have a folder with the files file1.txt and file2.txt. After running the process the first
time, you'll have a folder that contains both files.
Next, change the file file1.txt, and after running the process again you'll have a folder that contains
the modified file file1.txt, and a symlink file2.txt that links to the first version's folder.
Finally, inside your backup folder you have two version folders, one with two real files, and one with a real file and a symlink to the original file:
backups/
20150404103453/
file1.txt # real file
file2.txt # real file
20150404103602/
file1.txt # real file
file2.txt # symlink -> backups/20150404103453/file2.txt