Manage and reserve a range of number of numbers.
I'm mostly using this as a sort of port manager for an nginx module.
A true port manager would probably check that a port was being unused before assigning it, but this module does not do that. It assumes that all ports are allocated and deallocated using this module.
$ npm install -g reserved-numbers-cli
Tell it what port range is usable:
$ reserved-numbers-cli config --minimum=4000 --maximum=5000
Then reserve a quantity of numbers (in this example
4) for some name:
$ reserved-numbers-cli reserve somename 4
Then see what numbers were allocated:
$ reserved-numbers-cli get somename [4000,4001,4002,4003]
To deallocate numbers, use
free and the numbers to deallocate:
$ reserved-numbers-cli free somename 4001 [4000,4002,4003]
To list all reserved names, use
$ reserved-numbers-cli list somename (3): [4000,4002,4003]
The output of the
get command is run through
JSON.stringify so you
can grab that and
JSON.parse it in some other program, if needed, e.g.
reserved-numbers-cli get somename | someapp
You can pass in a flag each time you run the command (probably set an alias) which will tell the program where to load the settings:
$ reserved-numbers-cli list --settingsFile=/path/to/settings.json
If you call it normally without specifying the file, it will create
a new file in the home folder named
This module fully released under the Very Open License.