Description

For some cli tools we want to wrap it is sometimes neccesary or better to provide certain values with the environment.
We have a great system to declare and map gradle task properties to cli options. There is no way of doing the same for environment variables. I suggest to add this functionality anolog to how OptionMapper works so one can delclare custom mappings from task properties to specific environment variable names.

Description

If we want to use trait objects more in the future which also bring in the initialization of properties and providers we need a good base for these factories. At the moment each plugin is creating it's own BaseSpec class. It would make sense if this is provided by this library

package com.wooga.gradle.commons

import org.gradle.api.file.ProjectLayout
import org.gradle.api.model.ObjectFactory
import org.gradle.api.provider.ProviderFactory

import javax.inject.Inject

trait BaseSpec {
    @Inject
    ProjectLayout getLayout() {
        throw new Exception("ProjectLayout is supposed to be injected here by gradle")
    }

    @Inject
    ProviderFactory getProviderFactory() {
        throw new Exception("ProviderFactory is supposed to be injected here by gradle")
    }

    @Inject
    ObjectFactory getObjects() {
        throw new Exception("ObjectFactory is supposed to be injected here by gradle")
    }
}