Fix Nix flake (#1455)

flake.lock

@@ -2,11 +2,11 @@
   "nodes": {
     "devshell": {
       "locked": {
-        "lastModified": 1639692811,
-        "narHash": "sha256-wOOBH0fVsfNqw/5ZWRoKspyesoXBgiwEOUBH4c7JKEo=",
+        "lastModified": 1640301433,
+        "narHash": "sha256-eplae8ZNiEmxbOgwUn9IihaJfEUxoUilkwciRPGskYE=",
         "owner": "numtide",
         "repo": "devshell",
-        "rev": "d3a1f5bec3632b33346865b1c165bf2420bb2f52",
+        "rev": "f87fb932740abe1c1b46f6edd8a36ade17881666",
         "type": "github"
       },
       "original": {
@@ -41,11 +41,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1639807801,
-        "narHash": "sha256-y32tMq1LTRVbMW3QN5i98iOQjQt2QSsif3ayUkD1o3g=",
+        "lastModified": 1641449444,
+        "narHash": "sha256-InqsyCVafPqXmK7YqUfFVpb6eVYJWUWbYXEvey0J+3c=",
         "owner": "yusdacra",
         "repo": "nix-cargo-integration",
-        "rev": "b5bbaa4f5239e6f0619846f9a5380f07baa853d3",
+        "rev": "d1aa15a832db331a97082b7f8c7da737a6789c77",
         "type": "github"
       },
       "original": {

flake.nix

@@ -20,27 +20,36 @@
       # Set default package to helix-term release build
       defaultOutputs = { app = "hx"; package = "helix"; };
       overrides = {
-        crateOverrides = common: _: {
-          helix-term = prev: {
-            # link languages and theme toml files since helix-term expects them (for tests)
-            preConfigure = "ln -s ${common.root}/{languages.toml,theme.toml} ..";
-            buildInputs = (prev.buildInputs or [ ]) ++ [ common.cCompiler.cc.lib ];
-          };
+        crateOverrides = common: _: rec {
           # link languages and theme toml files since helix-view expects them
-          helix-view = _: { preConfigure = "ln -s ${common.root}/{languages.toml,theme.toml} .."; };
-          helix-syntax = _prev: {
+          helix-view = _: { preConfigure = "ln -s ${common.root}/{languages.toml,theme.toml,base16_theme.toml} .."; };
+          helix-syntax = prev: {
+            src =
+              let
+                pkgs = common.pkgs;
+                helix = pkgs.fetchgit {
+                  url = "https://github.com/helix-editor/helix.git";
+                  rev = "a8fd33ac012a79069ef1409503a2edcf3a585153";
+                  fetchSubmodules = true;
+                  sha256 = "sha256-5AtOC55ttWT+7RYMboaFxpGZML51ix93wAkYJTt+8JI=";
+                };
+              in
+              pkgs.runCommand prev.src.name { } ''
+                mkdir -p $out
+                ln -s ${prev.src}/* $out
+                ln -sf ${helix}/helix-syntax/languages $out
+              '';
             preConfigure = "mkdir -p ../runtime/grammars";
             postInstall = "cp -r ../runtime $out/runtime";
           };
-        };
-        mainBuild = common: prev:
+          helix-term = prev:
             let
               inherit (common) pkgs lib;
               helixSyntax = lib.buildCrate {
                 root = self;
                 memberName = "helix-syntax";
                 defaultCrateOverrides = {
-                helix-syntax = common.crateOverrides.helix-syntax;
+                  helix-syntax = helix-syntax;
                 };
                 release = false;
               };
@@ -50,7 +59,10 @@
                 ln -sf ${helixSyntax}/runtime/grammars $out
               '';
             in
-          lib.optionalAttrs (common.memberName == "helix-term") {
+            {
+              # link languages and theme toml files since helix-term expects them (for tests)
+              preConfigure = "ln -s ${common.root}/{languages.toml,theme.toml,base16_theme.toml} ..";
+              buildInputs = (prev.buildInputs or [ ]) ++ [ common.cCompiler.cc.lib ];
               nativeBuildInputs = [ pkgs.makeWrapper ];
               postFixup = ''
                 if [ -f "$out/bin/hx" ]; then
@@ -58,6 +70,7 @@
                 fi
               '';
             };
+        };
         shell = common: prev: {
           packages = prev.packages ++ (with common.pkgs; [ lld_13 lldb cargo-tarpaulin ]);
           env = prev.env ++ [