Provide WinSW Service Manager

[jacderida]

• 91bd9d0 Provide the WinSW service manager

  WinSW is a useful tool that can wrap any application as a Windows service; it provides the
  boilerplate code for interacting with the service infrastructure on Windows. You define a
  configuration for your application service in XML, then use WinSW, along with your configuration, as
  a service controller.

  The full specification for the service configuration can be found here:
  https://github.com/winsw/winsw/blob/v3/samples/complete.xml

  In this initial implementation, we provide support for most of the available elements, with the
  exception of:

  • serviceaccount
  • startarguments (I don't know what the difference is between that and 'arguments')
  • workingdirectory
  • logpath and log
  • env
  • download
  • extensions

  Support for workingdirectory and env will follow in subsequent commits; these fields can be added to
  the generic ServiceInstallCtx since they are common options on all platforms.

  Most of the code here deals with building the configuration file. This code was written as a
  separate function so that the different options could be unit tested. There is an integration/system
  test in a similar fashion to the sc manager.

• e1844e2 Extend ServiceInstallCtx with new options

  It is very common to define a working directory for a service process and a list of environment
  variables to pass to the process when it runs. The ServiceInstallCtx is extended for this because
  it applies to most service managers.

  In this particular case, three of the managers have been extended to support the variables: Systemd,
  Launchd and WinSW. The Windows sc.exe service manager does not support specifying either. The
  other two unix-based service managers might, but I am not familiar with those at the present time.
  It should be easy enough to extend them with a further PR.

[chipsenkbeil]

@jacderida gave it a skim and it all looks fine to me. 😄 Would you mind adding an update to the changelog? After that, I can merge this in.

[jacderida]

@jacderida gave it a skim and it all looks fine to me. 😄 Would you mind adding an update to the changelog? After that, I can merge this in.

Thanks.

I should have remembered to do that this time! I've now pushed an extra commit with the CHANGELOG update.

[valtyr]

Hey there. Do you guys have an ETA for when this will be released?

[chipsenkbeil]

@valtyr it's released now as version 0.5.0.

[valtyr]

Amazing! Thank you so much. I found this library today and it's perfect for my use case, these changes make it even better!