Added ProcessEnvironment BuildServer

[danielmarbach]

This pull is a discussion. I quickly spicked a build server implementation which sets environment variables in the executing process. The idea was that a build script which calls msbuild and compiles a solution which contains projects with the gitflowversiontask the environment variables could be read by the script. Unfortunately I couldn't read the environment variable in my scripts.

Any ideas how this could be improved? Is this useful or not? Is there a better and working approach to feed information back into the build script without calling GitFlowVersion.exe manually?

[JakeGinnivan]

Unfortunately environmental variables cannot be set in a parent process from a child process.

GitHubFlowVersion gets around this by being the execution host. The command line tool has /ProjectFile for msbuild or /Exe which instructs GitHubFlowVersion to run those things.
Because it is the host, all those environmental variables are available.

I also have a teamcity meta runner which you can install on the build server to make that super easy.

Another option is output parameters for the msbuild task?