nodejs: Use more pure symlink builds

flake.nix

@@ -226,6 +226,7 @@
 
     # a dev shell for working on dream2nix
     # use via 'nix develop . -c $SHELL'
+    # TODO only for the current system?
     devShells = forAllSystems (system: pkgs: let
       makeDevshell = import "${inp.devshell}/modules" pkgs;
       mkShell = config:

overrides/nodejs/default.nix

@@ -578,6 +578,12 @@ in
       };
     };
 
+    # Teach node-gyp to use nodejs headers locally
+    # rather that download them from https://nodejs.org.
+    node-gyp.build.postInstall = ''
+      wrapProgram "$out/bin/node-gyp" --set npm_config_nodedir $nodeSources
+    '';
+
     node-hid = {
       build = {
         nativeBuildInputs = old:
@@ -589,6 +595,10 @@ in
       };
     };
 
+    nodegit.build.buildInputs = with pkgs;
+      old:
+        old ++ [pkg-config libkrb5 e2fsprogs];
+
     npm = {
       dont-install-deps = {
         installDeps = "";
@@ -642,6 +652,10 @@ in
       };
     };
 
+    sharp.build.buildInputs = with pkgs;
+      old:
+        old ++ [vips.dev glib.dev pkg-config];
+
     simple-git-hooks = {
       dont-postinstall = {
         buildScript = "true";
@@ -660,6 +674,17 @@ in
       };
     };
 
+    sqlite3 = {
+      build = {
+        # See its README for build instructions
+        # TODO It needs different flags for electron, use $electronHeaders
+        buildScript = ''
+          node-pre-gyp install --build-from-source --nodedir=$nodeSources --offline --runtime=node --sqlite=${pkgs.sqlite}
+        '';
+        nativeBuildInputs = old: old ++ [pkgs.sqlite];
+      };
+    };
+
     tabby = {
       inherit cntr;
       fix-build = {

src/default.nix

@@ -284,7 +284,7 @@ in let
           getSourceSpec
           getRoot
           getDependencies
-          getCyclicDependencies
+          getCyclicHelpers
           defaultPackageName
           defaultPackageVersion
           packages

src/subsystems/haskell/builders/default/default.nix

@@ -14,15 +14,22 @@ in {
   }: {
     ### FUNCTIONS
     # AttrSet -> Bool) -> AttrSet -> [x]
-    getCyclicDependencies, # name: version: -> [ {name=; version=; } ]
-    getDependencies, # name: version: -> [ {name=; version=; } ]
-    getSource, # name: version: -> store-path
+    # name: version: -> helpers
+    getCyclicHelpers,
+    # name: version: -> [ {name=; version=; } ]
+    getDependencies,
+    # name: version: -> store-path
+    getSource,
     # to get information about the original source spec
-    getSourceSpec, # name: version: -> {type="git"; url=""; hash="";}
+    # name: version: -> {type="git"; url=""; hash="";}
+    getSourceSpec,
     ### ATTRIBUTES
-    subsystemAttrs, # attrset
-    defaultPackageName, # string
-    defaultPackageVersion, # string
+    # attrset
+    subsystemAttrs,
+    # string
+    defaultPackageName,
+    # string
+    defaultPackageVersion,
     # all exported (top-level) package names and versions
     # attrset of pname -> version,
     packages,