travis-matrix.sh

#!/usr/bin/env bash

set -e

core=( documentation amazonka-core amazonka )

priority_=( s3 autoscaling elb sqs iam ec2 )
priority=${priority_[@]/#/amazonka-}

library_=( $(ls -d amazonka-*) )
library=( $(echo ${library_[@]} ${priority[@]} | tr ' ' '\n' | sort | uniq -u) )

entry() {
    local ver="$1"
    local lib="$2"

cat <<-YAML
    - env: GHCVER=${ver} LIBRARY=${lib}
      addons: { apt: { packages: [ghc-${ver}], sources: [hvr-ghc] }
YAML
}

matrix() {
    local title="$1"
    declare -a versions=("${!2}")
    declare -a selected=("${!3}")

    for ver in ${versions[@]}; do
        echo "    # ${title} - GHC ${ver}"

        for lib in ${selected[@]}; do
            entry $ver $lib
        done

        echo ""
    done
}

ghc_710=( 7.10.1 )
ghc_all=( 7.10.1 7.8.4 7.6.3 )

echo "  include:"

matrix "Core" ghc_710[@] core[@]
matrix "Priority" ghc_all[@] priority[@]
matrix "Remainder" ghc_710[@] library[@]