pyrox.dev
lol
elm: 0.18 -> 0.19
update makeElmStuff to makeDotElm, create elm-elm.nix listing the elm
code that elm itself embeds, and pre-fetch it so that the elm build
can function offline. also include a versions.dat file, as created
during an impure build of elm. set ELM_HOME so that the elm build can
find these things.
continues #45448
(cherry picked from commit e7d0df84676d51fb0cbfbeb10dd32153489c3565)
Signed-off-by: Domen Kožar <domen@dev.si>
authored by
Matt McHenry
and committed by
Domen Kožar
9f9e9d64
db11c832
+77
-10
+27
-10
pkgs/development/compilers/elm/default.nix
+27
-10
pkgs/development/compilers/elm/default.nix
···
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# 3) Run ./elm2nix.rb in elm-reactor's directory.
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# 4) Move the resulting 'package.nix' to 'packages/elm-reactor-elm.nix'.
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# the elm binary embeds a piece of pre-compiled elm code, used by 'elm
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# reactor'. this means that the build process for 'elm' effectively
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# executes 'elm make'. that in turn expects to retrieve the elm
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# dependencies of that code (elm/core, etc.) from
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# package.elm-lang.org, as well as a cached bit of metadata
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# (versions.dat).
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# the makeDotElm function lets us retrieve these dependencies in the
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# standard nix way. we have to copy them in (rather than symlink) and
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# make them writable because the elm compiler writes other .dat files
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# alongside the source code. versions.dat was produced during an
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# impure build of this same code; the build complains that it can't
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# update this cache, but continues past that warning.
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# finally, we set ELM_HOME to point to these pre-fetched artifacts so
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# that the default of ~/.elm isn't used.
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let
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makeElmStuff = deps:
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let json = builtins.toJSON (lib.mapAttrs (name: info: info.version) deps);
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makeDotElm = ver: deps:
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let versionsDat = ./versions.dat;
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cmds = lib.mapAttrsToList (name: info: let
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pkg = stdenv.mkDerivation {
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···
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};
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in ''
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mkdir -p elm-stuff/packages/${name}
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ln -s ${pkg} elm-stuff/packages/${name}/${info.version}
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mkdir -p .elm/${ver}/package/${name}
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cp -R ${pkg} .elm/${ver}/package/${name}/${info.version}
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chmod -R +w .elm/${ver}/package/${name}/${info.version}
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'') deps;
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in ''
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export HOME=/tmp
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mkdir elm-stuff
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cat > elm-stuff/exact-dependencies.json <<EOF
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${json}
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EOF
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mkdir -p .elm/${ver}/package;
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ln -s ${versionsDat} .elm/${ver}/package/versions.dat;
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'' + lib.concatStrings cmds;
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hsPkgs = haskell.packages.ghc822.override {
···
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let hlib = haskell.lib;
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elmPkgs = {
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elm = hlib.overrideCabal (self.callPackage ./packages/elm.nix { }) {
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preConfigure = "export HOME=`pwd`";
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preConfigure = ''
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export ELM_HOME=`pwd`/.elm
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'' + (makeDotElm "0.19.0" (import ./packages/elm-elm.nix));
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};
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/*
+50
pkgs/development/compilers/elm/packages/elm-elm.nix
+50
pkgs/development/compilers/elm/packages/elm-elm.nix
···
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{
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"elm/time" = {
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version = "1.0.0";
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sha256 = "0vch7i86vn0x8b850w1p69vplll1bnbkp8s383z7pinyg94cm2z1";
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};
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"elm/url" = {
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version = "1.0.0";
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sha256 = "0av8x5syid40sgpl5vd7pry2rq0q4pga28b4yykn9gd9v12rs3l4";
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};
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"elm/json" = {
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version = "1.0.0";
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sha256 = "1g0hafkqf2q633r7ir9wxpb1lnlzskhpsyi0h5bkzj0gl072zfnb";
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};
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"elm/html" = {
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version = "1.0.0";
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sha256 = "1n3gpzmpqqdsldys4ipgyl1zacn0kbpc3g4v3hdpiyfjlgh8bf3k";
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};
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"elm/parser" = {
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version = "1.0.0";
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sha256 = "0k4zlq30lrvawqvzwbvsl0hrmwf9s832mb41z7fdspm4549dj7wc";
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};
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"elm/http" = {
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version = "1.0.0";
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sha256 = "1igmm89ialzrjib1j8xagkxalq1x2gj4l0hfxcd66mpwmvg7psl8";
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};
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"elm/virtual-dom" = {
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version = "1.0.0";
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sha256 = "0hm8g92h7z39km325dlnhk8n00nlyjkqp3r3jppr37k2k13md6aq";
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};
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"elm/browser" = {
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version = "1.0.0";
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sha256 = "1apmvyax93nvmagwj00y16zx10kfv640cxpi64xgqbgy7d2wphy4";
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};
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"elm/core" = {
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version = "1.0.0";
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sha256 = "10kr86h4v5h4p0586q406a5wbl8xvr1jyrf6097zp2wb8sv21ylw";
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};
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"elm/svg" = {
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version = "1.0.0";
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sha256 = "08x0v8p9wm699jjmsnbq69pxv3jh60j4f6fg7y6hyr7xxj85y390";
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};
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"elm/project-metadata-utils" = {
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version = "1.0.0";
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sha256 = "1d4rd4grrnbdvj9gf00h7dr6hbkjzawgkzpizfrkp1z1pyr3mvq9";
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};
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"elm-explorations/markdown" = {
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version = "1.0.0";
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sha256 = "0k3110ixa4wwf3vkkdplagwah9ypr965qxr1y147rnsc1xsxmr6y";
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};
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}
pkgs/development/compilers/elm/versions.dat
pkgs/development/compilers/elm/versions.dat
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