Doesn't work for multi-package setup with inter-dependencies

[UnkindPartition]

First of all, thanks for making this. I'm migrating from the "complex" stack setup that I've been using for many years, and I find the ability to auto-generate .travis.yml very convenient, especially for smaller projects.

However, when setting this up for tasty, I ran into this issue after generating the config with haskell-ci cabal.project --output .travis.yml (using haskell-ci 0ebd703):

$ ${CABAL} v2-build $WITHCOMPILER ${TEST} ${BENCH} --dep -j2 all

cabal: Cannot select only the dependencies (as requested by the '--only-dependencies' flag), the package tasty-1.2.3 is required by a dependency of one of the other targets.

Travis log

FWIW, I've fixed this for myself simply by removing the --dep steps, as they don't seem necessary.

[phadej]

% haskell-ci --help|grep dep
                    --install-dependencies | --no-install-dependencies | 
  --no-install-dependencies
                           Skip separate dependency installation step

EDIT: The upstream issue is haskell/cabal#6106