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|
{ nixpkgs }:
with nixpkgs;
let
# provided by .envrc
root = builtins.getEnv "BIZ_ROOT";
# general functions to put in a lib
lines = s: lib.strings.splitString "\n" s;
removeNull = ls: builtins.filter (x: x != null) ls;
depsToPackageSet = packageSet: deps:
lib.attrsets.attrVals deps packageSet;
# returns true if a is a subset of b, where a and b are attrsets
subset = a: b: builtins.all
(x: builtins.elem x b) a;
allDeps = import ./haskell-deps.nix;
# gather data needed for compiling by analyzing the main module
analyze = main: rec {
# path to the module relative to the git root
relpath = builtins.replaceStrings ["${root}/"] [""]
(builtins.toString main);
# Haskell-appropriate name of the module
module = builtins.replaceStrings ["/" ".hs"] ["." ""] relpath;
# file contents
content = builtins.readFile main;
# search for the ': exe' declaration
exe = builtins.head (lib.lists.flatten (removeNull
(map (builtins.match "^-- : exe ([[:alnum:]._-]*)$")
(lines content))));
# collect all of the ': dep' declarations
deps = lib.lists.flatten (removeNull
(map (builtins.match "^-- : dep ([[:alnum:]._-]*)$")
(lines content)));
};
mkGhc = compiler: (deps: compiler (hp:
if (subset deps allDeps)
then depsToPackageSet hp deps
else throw ''
missing from nix/haskell-deps.nix:
${toString (lib.lists.subtractLists allDeps deps)}
''));
ghc_ = mkGhc pkgs.haskell.packages.ghc865.ghcWithHoogle;
ghcjs_ = mkGhc pkgs.haskell.packages.ghcjs.ghcWithPackages;
in {
ghc = main:
let
data = analyze main;
ghc = ghc_ data.deps;
in stdenv.mkDerivation {
name = data.module;
src = ../.;
nativeBuildInputs = [ ghc ];
strictDeps = true;
buildPhase = ''
mkdir -p $out/bin
# compile with ghc
${ghc}/bin/ghc -Werror -i. \
--make ${main} \
-main-is ${data.module} \
-o $out/bin/${data.exe}
'';
# the install process was handled above
installPhase = "exit 0";
} // { env = ghc; };
ghcjs = main:
let
data = analyze main;
ghcjs = ghcjs_ data.deps;
in stdenv.mkDerivation {
name = data.module;
src = ../.;
nativeBuildInputs = [ ghcjs ];
strictDeps = true;
buildPhase = ''
mkdir -p $out/static
# compile with ghcjs
${ghcjs}/bin/ghcjs -Werror -i. \
--make ${main} \
-main-is ${data.module} \
-o ${data.exe}
# optimize js output
${pkgs.closurecompiler}/bin/closure-compiler \
${data.exe}/all.js > $out/static/${data.exe}
'';
installPhase = "exit 0";
} // { env = ghcjs; };
env = mkShell {
name = "bizdev";
buildInputs = [
(ghc_ allDeps)
# this says something about missing haskelline?
#(ghcjs_ allDeps)
nixpkgs.niv.niv
nixpkgs.hlint
nixpkgs.ormolu
nixpkgs.python37Packages.black
nixpkgs.python37Packages.pylint
nixpkgs.wemux
];
EXAMPLE = "hi";
shellHook = ''
function help() {
echo ""
echo "bizdev" | ${nixpkgs.figlet}/bin/figlet | ${nixpkgs.lolcat}/bin/lolcat
echo ""
echo " bild compile code"
echo " deps manage dependencies with niv"
echo " ghci start ghci with correct options"
echo " help show this message"
echo " hero compile and start a dev server for herocomics.app"
echo " lint auto-lint all changed files"
echo " ./push TODO: convert to haskell"
echo " ./ship TODO: convert to haskell"
}
function bild() {
runghc Biz.Bild $@
}
function deps() {
niv --sources-file $BIZ_ROOT/nix/sources.json $@
}
function ghci() {
ghci -i$BIZ_ROOT -ghci-script "$BIZ_ROOT/.ghci"
}
function hero() {
out="_bild/nix"
export HERO_PORT=3000
export HERO_NODE=$BIZ_ROOT/$out/Hero.Node/static
export HERO_KEEP=$BIZ_ROOT/_keep
export HERO_SKEY=$BIZ_ROOT/_skey
b="runghc Biz.Bild"
rg --files \
| entr -rcs \
"$b Hero.Host && $b Hero.Node && $out/Hero.Host/bin/mmc"
}
function lint() {
alias lint=$BIZ_ROOT/Biz/lint.py
}
help
'';
};
os = cfg: (nixos (args: lib.attrsets.recursiveUpdate cfg {
boot.cleanTmpDir = true;
networking.firewall.allowPing = true;
nix.binaryCaches = [ "https://cache.nixos.org" ];
nix.gc.automatic = true;
nix.gc.dates = "Sunday 02:15";
nix.optimise.automatic = true;
nix.optimise.dates = [ "Sunday 02:30" ];
nixpkgs.overlays = overlays;
programs.mosh.enable = true;
programs.mosh.withUtempter = true;
security.acme.email = "ben@bsima.me";
security.acme.acceptTerms = true;
security.sudo.wheelNeedsPassword = false;
services.clamav.daemon.enable = true; # security
services.clamav.updater.enable = true; # security
services.fail2ban.enable = true; # security
services.openssh.enable = true;
services.openssh.openFirewall = true;
services.openssh.forwardX11 = true;
services.openssh.passwordAuthentication = false;
system.autoUpgrade.enable = false; # 'true' breaks our nixpkgs pin
})).toplevel;
}
|
