dbaynard
commented
5 years ago The longest command to run (by a long way) seems to be this:
Run process: /run/current-system/sw/bin/nix-shell --pure -E "
with (import <nixpkgs> {});
let inputs = [zlib.dev zlib.out haskell.compiler.ghc843 git gcc gmp];
libPath = lib.makeLibraryPath inputs;
stackExtraArgs = lib.concatMap (pkg: [ ''--extra-lib-dirs=${lib.getLib pkg}/lib'' ''--extra-include-dirs=${lib.getDev pkg}/include'' ]) inputs;
in runCommand ''myEnv'' {
buildInputs = lib.optional stdenv.isLinux glibcLocales ++ inputs;
STACK_PLATFORM_VARIANT=''nix'';
STACK_IN_NIX_SHELL=1;
LD_LIBRARY_PATH = libPath;
STACK_IN_NIX_EXTRA_ARGS = stackExtraArgs;
} \"\"" --run "'/nix/store/anrbbqw3v0zgb0gypv9vskf59yfs3pbm-stack-1.9.1/bin/stack' $STACK_IN_NIX_EXTRA_ARGS '--internal-re-exec-version=1.9.1' '-v' 'ghci' 'app'"@nh2 is probably the best person to comment on nix behaviour.
nh2
chrissound
qrilka
domenkozar
I've recently migrated to Nixos, and have started using
nixwith stack. However this seems to add considerable delay to starting ghci for things like ghcid / intero - something I normally wouldn't notice is now taking 5s +-.I'm not too familiar with what Nix is doing, but possibly there is a way to cache something or mount something in a ramfile (tmpfs iirc)?
Output of stack -v ghci app:
Method of installation
stackpackage