[Puppet Users] querying hiera data without providing host/scope

Hello there,

I need to access the following hiera data in a script:
$ hiera -c /etc/puppet/hiera.yaml tomcats environment=development
line=intra3
["tc7_test1", "tc7_test8"]
or
$ hiera -c /etc/puppet/hiera.yaml apache_port environment=development
line=intra3 name=tc7_test1
81

The example on https://github.com/puppetlabs/hiera uses facts of a specific
hosts.
I don't want to specify and load each YAML file for each host, because the
hosts are already defined for a specific line and stage environment:
$ hiera -c /etc/puppet/hiera.yaml hosts environment=development line=intra3
["serverA.domain.tld", "serverB.domain.tld"]

But I can't get the hiera.lookup to work without providing a scope with the
facts of a specific host.

I know that I could just call hiera and parse the output, but I thought I
better ask before doing that.
Maybe I'm even using environment and stage specific hiera data the wrong
way.

Here is my current hiera config:

$ cat /etc/puppet/hiera.yaml
:hierarchy:
- %{environment}/%{line}/%{name}
- %{environment}/%{line}
- %{environment}
:backends:
- yaml
:yaml:
:datadir: '/etc/puppet/environments/%{environment}/hieradata'
:puppet:
:datasource: data
$ hiera -c /etc/puppet/hiera.yaml apache_port environment=development
line=intra3
80
$ hiera -c /etc/puppet/hiera.yaml apache_port environment=development
line=intra3 name=tc7_test1
81
$ hiera -c /etc/puppet/hiera.yaml apache_port environment=development
line=intra3 name=tc7_test8
80
$ cat /etc/puppet/environments/development/hieradata/development.yaml
---
# default values for this stage
apache_port: '80'

$ cat /etc/puppet/environments/development/hieradata/development/intra3.yaml
---
# line specific values
hosts: - 'serverA.domain.tld'
- 'serverB.domain.tld'
tomcats: - 'tc7_test1'
- 'tc7_test8'

$ cat
/etc/puppet/environments/development/hieradata/development/intra3/tc7_test1.yaml
---
# tc7_test1 specific values
apache_port: 81


Thanks in advance!