VolGen - Disk Volume Generator

A tool for creating disk volumes from a given filesystem path. This is intended for performing backups to static media types such as DVD-RW, CD-RW, USB Flash, or for other, more manageable large objects in cold storage.

Requirements:

The tcamake gnu-make wrapper:
The tcanetpp library

VolGen operates by creating a metadata directory, .volgen, in the working directory (or as specified), made up of directories of softlinks that each represent the sized volume. These directories essentially split the target directory by the configured 'n' bytes in size.

The volume directories contain soft-links to the files that make up the given volume. Since .volgen contains only links, it is cheap to keep around or recreate. These volumes can then be archived using the follow-links option of any corresponding archival tool (eg. rsync).

The difference between the current volgen state and when volgen was last ran can be determined using the voldiff script. This, in turn, can be used to create diff volumes to keep the archival/backup media current while avoiding a rewrite of all volumes.

Building VolGen

Obtain the requirements.

$ mkdir src && cd src
$ git checkout https://github.com/tcarland/tcamake.git
$ git checkout https://github.com/tcarland/tcanetpp.git
$ git checkout https://github.com/tcarland/volgen.git

The tcamake project uses an environment flag to define looking for dependencies in the current parent rather than system locations such as /usr/lib.
```
$ export TCAMAKE_PROJECT=$(realpath .)
```
Build the tcanetpp library. The build environment for the lib is needed and can be found or defined in resources.
```
$ cd tcanetpp 
$ source resources/tcanetpp_release_mt
$ make arlib
```
Build VolGen
```
$ cd ../volgen
$ make
```