Add ability to choose what components should be exported or restored.

[ketan]

This commit allows passing in components to knife backup export and knife backup restore commands:

$ knife backup export roles nodes

The above commands will backup just the roles and nodes

$ knife backup restore data_bags environments

The above commands will backup just the data bags and environments

[mdxp]

Unfortunately this is not working for me. I tried it with chef 10.x and 11.x with the same result:

knife backup roles nodes
FATAL: Cannot find sub command for: 'backup roles nodes'
Available backup subcommands: (for details, knife SUB-COMMAND --help)

** BACKUP COMMANDS **
knife backup export [COMPONENT [COMPONENT ...]] [-D DIR] (options)
knife backup restore [COMPONENT [COMPONENT ...]] [-D DIR] (options)

[ketan]

Did you try knife backup export nodes roles

[mdxp]

Ups. Somehow I knew that it was not a good idea to do this at 3am ;). Sorry about that. I will check it out again shortly.

[ketan]

Hi,

Any traction on this?

[mdxp]

Merged; THanks @ketan! Sorry for the delay on getting back on this.