XDG_DATA_HOME can't work ubuntu-emulator

[Bin Li]

XDG_DATA_HOME used for saving emulator which user created.

sudo ubuntu-emulator create helloworld --arch=i386 --channel=ubuntu-touch/ubuntu-rtm/14.09

After that the emulator would be saved in below directory.
.local/share/ubuntu-emulator/helloworld.

So I set the XDG_DATA_HOME to /home/emulator/ with export. And move the helloworld into /home/emulator/ubuntu-emulator/.

After that I could list the emulator with 'ubuntu-emulator list' successfully. So the XDG_DATA_HOME take effect.

But when I create a new emulator with 'sudo' I found it still create a new emulator in '.local/share/ubuntu-emulator/' while not in '/home/emulator/ubutnu-emulator'.

Thanks!

[You-Sheng Yang (vicamo)]

When you execute any command with sudo, it will probably _not_ carry your environment variables set for your normal user. So, when you execute `ubuntu-emulator list` as normal user, that XDG_DATA_HOME variable takes effect and not when you execute `ubuntu-emulator create` as root via sudo.

[Bin Li (binli)]

Vicamo,

 Yes, that's the reason.

 You cant just write a simple test. when use it with sudo it can't anything. :)
--------------------------------------
$cat test.sh
#!/bin/bash

echo "$XDG_DATA_DIRS"
--------------------------------------

 Could we find another way to set the DATA_HOME? Thanks!

[You-Sheng Yang (vicamo)]

I think both `sudo -E ...` or `sudo env XDG_DATA_DIRS=$XDG_DATA_DIRS ...` work for your case.

[Bin Li (binli)]

Vicamo,

 Yes, :)

[Bin Li (binli)]

XDG_CACHE_HOME also have the same issue.

https://bugs.launchpad.net/ubuntu/+source/phablet-tools/+bug/1394855