Add an environment variable to pass in the --appbase value to mono KRE

[Praburaj]

Currently there is no way to send the application base path to mono when launching k command. Automation in general needs this switch as the automation code is not in the same folder as the application itself.

Alternatively @davidfowl suggested an environment variable can be added to pass in the appbase value.

[Praburaj]

Cool. Thanks!

[Praburaj]

I used the updated bits to try this. I seem to be running into a different issue now.

I tried setting the environment variable

export KRE_APPBASE=/Users/username/Documents/../<ToApplicationPath>

Then running the below command (Expanded version of k kestrel)

/Users/ktest/.kre/packages/KRE-mono45-x86.1.0.0-alpha4-10335/bin/mono /Users/ktest/.kre/packages/KRE-mono45-x86.1.0.0-alpha4-10335/bin/klr.mono.managed.dll /Users/ktest/.kre/packages/KRE-mono45-x86.1.0.0-alpha4-10335/bin/Microsoft.Framework.ApplicationHost kestrel

When i try to run it from a folder other than the application folder I seem to be running into this below error:

System.Exception: Unable to locate project.json
  at Microsoft.Framework.Runtime.DefaultHost.Initialize (Microsoft.Framework.Runtime.DefaultHostOptions options, IServiceProvider hostServices) [0x00000] in <filename unknown>:0 
  at Microsoft.Framework.Runtime.DefaultHost..ctor (Microsoft.Framework.Runtime.DefaultHostOptions options, IServiceProvider hostServices) [0x00000] in <filename unknown>:0 
  at Microsoft.Framework.ApplicationHost.Program.Main (System.String[] args) [0x00000] in <filename unknown>:0 
  at (wrapper managed-to-native) System.Reflection.MonoMethod:InternalInvoke (System.Reflection.MonoMethod,object,object[],System.Exception&)
  at System.Reflection.MonoMethod.Invoke (System.Object obj, BindingFlags invokeAttr, System.Reflection.Binder binder, System.Object[] parameters, System.Globalization.CultureInfo culture) [0x00000] in <filename unknown>:0 

[Praburaj]

Looks like I used the wrong KRE version for validation. I will validate this with the latest KRE and update the bug.