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Dynamically link HIE for great TH speedup

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See https://github.com/domenkozar/hie-nix/issues/59

Thanks to @mpickering for pointing this out
This commit is contained in:
Silvan Mosberger 2019-04-27 16:38:18 +02:00
parent 504bb9c131
commit ab36b3209b
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2 changed files with 12 additions and 5 deletions
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4
Readme.org
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@ -50,7 +50,7 @@ For a specific set of GHC versions (note: The ~hie~ / ~hie-wrapper~ binaries wil
}
#+END_SRC
For *all* supported GHC versions (warning: requires ~20GB of space for all 9 versions):
For *all* supported GHC versions (warning: requires ~30GB (or <10GB with compression) of space for all 9 versions):
#+BEGIN_SRC nix
{
environment.systemPackages = [
@ -75,7 +75,7 @@ For a specific set of GHC versions (note: The ~hie~ / ~hie-wrapper~ binaries wil
nix-env -iA selection --arg selector 'p: { inherit (p) ghc864 ghc863 ghc843; }' -f https://github.com/infinisil/all-hies/tarball/master
#+END_SRC
For *all* supported GHC versions (warning: requires ~20GB of space for all 9 versions):
For *all* supported GHC versions (warning: requires ~30GB (or <10GB with compression) of space for all 9 versions):
#+BEGIN_SRC bash
nix-env -iA selection --arg selector 'p: p' -f https://github.com/infinisil/all-hies/tarball/master
#+END_SRC

13
default.nix
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@ -67,6 +67,15 @@ let
# Embed the ghc version into the name
pname = "${old.pname}-${ghcVersion}";
version = lib.substring 0 8 revision;
# Link Haskell libraries dynamically, improves startup time for projects
# using TH by a lot (40x faster in one of my tests), but also Increases
# closure size by about 50% (=~ 1.2GB) per HIE version
# Can be disabled again for GHC versions that have a fix for
# https://gitlab.haskell.org/ghc/ghc/issues/15524
enableSharedExecutables = true;
isLibrary = false;
doHaddock = false;
})).overrideAttrs (old: {
nativeBuildInputs = old.nativeBuildInputs or [] ++ [ pkgs.makeWrapper ];
# Make sure hie-x.x.x binary exists
@ -98,9 +107,7 @@ let
pkgs = forGhc.pkgs;
};
build = hlib.justStaticExecutables
(expr.override overrideFun).haskell-ide-engine;
build = (expr.override overrideFun).haskell-ide-engine;
in build;
# A set of all ghc versions for all hie versions, like