chadow

Idea:

• Each library is a collection of data---text, video, images, etc. There is a canonical set of this data.
• Each sector in a library replicates the whole data set.
• A sector is divided across different storage media. The union of all the contents in each storage medium should be similar across sectors.

chadow helps to ensure this consistency.

Explicitly built for Linux (Ubuntu) for the meantime.

Installation and Quickstart

Install via the included install script. This requires virtualenv goodies as installed via virtualenv-burrito.

Commands

All prefixed by python ~/.chadow/chadow.py...

createlib LIBRARY_NAME

Create a new data library to track with the createlib command.

regsector LIBRARY_NAME SECTOR_NAME

Register a new storage sector with the regsector command. Remember that a sector is a collection of different storage media which, when taken together comprises a library.

regmedia LIBRARY_NAME SECTOR_NAME /path/to/mount

To register actual storage media to your sectors, use the regmedia command. This command assumes that the physical storage medium they are mapped to, when mounted on your computer, mount to distinct special files (i.e., in the loosest terms, don't have two flash drives with the same name because then they will collide on the same /media/user/flash_drive_name path).

index LIBRARY_NAME SECTOR_NAME /path/to/mount

Index a media path to get a "snapshot" of its contents. This will be used to compare the consistency of sectors in the library.

Testing

Having installed requirements.txt, you can test by simply running the chadow_test.py file in this repo.