Access "-f" Filename(s)

[pombaer]

Hallo, this is not a bug rather a feature request.

I tried to find a way to make a simple environment specific configuration with helm. My goal was to run helm like
helm install -f myfile.yaml ...
I want to apply templates depending on my environments to kubernetes, so i was looking for a variable holding the filename (or list of files) from the -f/--values parameter so i could simply define a condition at the beginning of my templates like:
{{ if eq .<variable> "myfile.yaml" }} (may syntax is not 100% ok, but you know what i mean ;) )
or
{{if has .<variable> "myfile.yaml" }} (may syntax is not 100% ok, but you know what i mean ;) )

I found no way to get filenames of the -f parameter, is there a way or is there a other simple way to achieve this goal?
I found some solutions with ex. helmfile and workarrounds with printf, but all solutions add complexity to the deployments.
For now my workaround uses the "--set" parameter, but i don't like the duplicate definition: -f mycluster.yaml --set cluster=mycluster
{{ if eq .Values.cluster "myfile.yaml" }}

Is there a reason why the -f parameter is not available in helm?