better error message when xcode requires license agreement

[gnawhleinad]

vim +PluginInstall +qall will fail if Xcode has been updated and requires a license agreement:

Agreeing to the Xcode/iOS license requires admin privileges, please re-run as root via sudo.

The failure happens when running git commands.

[trygveu]

Hi @gnawhleinad, to me this looks like an actual issue, but I am not able to confirm this as I'm not using Xcode. Could you please have a look at the guidelines for posting an issue, and try to provide a bit more information with your issue?

Do you have any suggestions to how this can be fixed?

Thank you.

[gnawhleinad]

try to provide a bit more information with your issue?

When Xcode has been updated, it may prompt users to accept their license before using Xcode tools (e.g. git).

Do you have any suggestions to how this can be fixed?

On OS X, Vundle could test the git command for the Agreeing to the Xcode... message and exit code. A user can manually run Xcode and agree to the license or run sudo xcodebuild -license accept. Homebrew uses this approach, Homebrew/install@c0c0534.