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haskell: improve documentation on ghcWithHoogle and developPackage

This commit is contained in:
Joe Hermaszewski 2020-11-11 11:01:53 +08:00 committed by Peter Simons
parent c3b35f21f7
commit 07e697d22d
1 changed files with 10 additions and 0 deletions
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10
pkgs/development/haskell-modules/make-package-set.nix
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@ -228,6 +228,9 @@ in package-set { inherit pkgs stdenv callPackage; } self // {
# optional set of arbitrary overrides, and an optional haskell package
# modifier, return a derivation appropriate for nix-build or nix-shell to
# build that package.
# If 'returnShellEnv' is true this returns a derivation which will give you
# an environment suitable for developing the listed packages with an
# incremental tool like cabal-install.
developPackage =
{ root
, name ? builtins.baseNameOf root
@ -245,6 +248,13 @@ in package-set { inherit pkgs stdenv callPackage; } self // {
ghcWithPackages = selectFrom: withPackages (selectFrom self);
# Put 'hoogle' into the derivation's PATH with a database containing all
# the package's dependencies; run 'hoogle server --local' in a shell to
# host a search engine for the dependencies.
#
# To reload the Hoogle server automatically on .cabal file changes try
# this:
# echo *.cabal | entr -r -- nix-shell --run 'hoogle server --local'
ghcWithHoogle = selectFrom:
let
packages = selectFrom self;