Driver extraction part2

[SvenDowideit]

this will bring back @zeeyang's work from #184

[SvenDowideit]

@tianon @zeeyang @crosbymichael @gmlewis @steeve

the sooner we merge this the better (the first commit obviously has already been reviewed)

[gmlewis]

s/iso/ISO/
s/its/it's/

[gmlewis]

A few nits, otherwise LGTM

[SvenDowideit]

@zeeyang one problem I have with this refactor, is that its removed all traces of user feedback once inside the driver.

we need to work out how to bring that back - preferably in a way that the 'verbose' output can be stored, and printed on error.

compare the output of boot2docker -v stop

bash-3.2$ ./boot2docker-v1.2.0-pre-darwin-amd64 status
running
bash-3.2$ ./boot2docker-v1.2.0-pre-darwin-amd64 -v stop
bash-3.2$ ./boot2docker-v1.1.0-
boot2docker-v1.1.0-darwin-amd64       boot2docker-v1.1.0-linux-amd64        boot2docker-v1.1.0-windows-amd64.exe
bash-3.2$ ./boot2docker-v1.1.0-darwin-amd64 start
2014/07/31 16:41:48 Waiting for VM to be started...
.......
2014/07/31 16:42:10 Started.
2014/07/31 16:42:10 To connect the Docker client to the Docker daemon, please set:
2014/07/31 16:42:10     export DOCKER_HOST=tcp://192.168.59.103:2375
bash-3.2$ ./boot2docker-v1.1.0-darwin-amd64 -v stop
2014/07/31 16:42:17 executing: VBoxManage showvminfo boot2docker-vm --machinereadable
2014/07/31 16:42:17 executing: VBoxManage controlvm boot2docker-vm acpipowerbutton
2014/07/31 16:42:18 executing: VBoxManage showvminfo boot2docker-vm --machinereadable
2014/07/31 16:42:18 executing: VBoxManage controlvm boot2docker-vm acpipowerbutton
2014/07/31 16:42:19 executing: VBoxManage showvminfo boot2docker-vm --machinereadable
2014/07/31 16:42:19 executing: VBoxManage controlvm boot2docker-vm acpipowerbutton
2014/07/31 16:42:20 executing: VBoxManage showvminfo boot2docker-vm --machinereadable
2014/07/31 16:42:20 executing: VBoxManage controlvm boot2docker-vm acpipowerbutton
2014/07/31 16:42:21 executing: VBoxManage showvminfo boot2docker-vm --machinereadable
2014/07/31 16:42:21 executing: VBoxManage controlvm boot2docker-vm acpipowerbutton
2014/07/31 16:42:22 executing: VBoxManage showvminfo boot2docker-vm --machinereadable
bash-3.2$ 

[SvenDowideit]

@crosbymichael @tianon @zeeyang

[tianon]

Much love, this needed a comment so we didn't fall down into that trap again. :)

[tianon]

Seems sane enough - we can obviously iterate as we go from here :)

[tianon]

I'm assuming you'll rebase/shuffle #187 once this is nailed down and merged?

[SvenDowideit]

yup - or re-write - that was the more naive impl i could muster, and I really would like to be able to talk to it from outside too (qemu networking, so fun)

[tiborvass]

We should check for the return value of Register and exit on error.