spec_helper boilerplate
Promote #get_filename to Runner (mimic #get_env)
Promote environments to a (lazy-load) method
#attr_accessor works inside modules too

It just defines methods.
Let runners get the source env by themselves

And use accessors.
Enter mysql::Loader
Invert class/module roles among runners
Enter the load task (and relative runner)
I ❤ symbols
I ❤ sequential execution

AKA: a contrived commit!
Using the Rails constant, should depend on the gem
Ignore `which` output
Extract an input getter
Remove spurious output
Fix runners specs
We're not nuff lazy
Create the tmp dir in the dummy app on setup
Fix loader loading
Remove the file only during a full dump/load cycle
Don't tell anyone rails is a dependency