58 lines
1.4 KiB
Nix
58 lines
1.4 KiB
Nix
{ config, lib, pkgs, ... }:
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let
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cfg = config.sydnix.users.crumb.haskell;
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in {
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options.sydnix.users.crumb.haskell.enable =
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lib.mkEnableOption "Haskell, à la crumb";
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config = lib.mkIf cfg.enable {
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# Convenient shorthand for quickly opening Haskell REPLs.
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programs.bash.profileExtra = ''
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# Start a GHCi REPL with the given packages made available.
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ghci-with-packages () {
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nix-shell -p "haskellPackages.ghcWithPackages (p: with p; [ $@ ])" \
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--run ghci
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}
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# Run GHC with the given packages made available.
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ghc-with-packages () {
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getopt -o "p" -- "$@"
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while true; do
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case "$1" in
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-p)
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packages="$1"
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shift 2
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;;
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--)
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shift
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break
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;;
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esac
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done
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if [ $? -ne 0 ]; then
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echo "Invalid options provided"
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exit 1
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fi
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eval set -- "$options"
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nix-shell -p "haskellPackages.ghcWithPackages (p: with p; [ $packages ])" \
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--run "ghc $@"
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}
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'';
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sydnix.impermanence.cache.directories =
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let xdg-cache-dir =
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config.home.cacheHome
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or "${config.home.homeDirectory}/.cache";
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in [
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# We don't want to rebuild Hackage simply due to a reboot, do we? }:)
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(lib.removePrefix "${config.home.homeDirectory}/"
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"${xdg-cache-dir}/cabal")
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];
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};
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}
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