jetbrains: configurable vmoptions

All products are now configurable through `config.jetbrains.vmoptions`

Closes #107032

pkgs/applications/editors/jetbrains/common.nix

@@ -1,5 +1,6 @@
-{ stdenv, lib, makeDesktopItem, makeWrapper, patchelf
+{ stdenv, lib, makeDesktopItem, makeWrapper, patchelf, writeText
 , coreutils, gnugrep, which, git, unzip, libsecret, libnotify
+, vmopts ? null
 }:
 
 { name, product, version, src, wmClass, jdk, meta }:
@@ -9,6 +10,11 @@ with stdenv.lib;
 let loName = toLower product;
     hiName = toUpper product;
     execName = concatStringsSep "-" (init (splitString "-" name));
+    vmoptsName = loName
+               + ( if (with stdenv.hostPlatform; (is32bit || isDarwin))
+                   then ""
+                   else "64" )
+               + ".vmoptions";
 in
 
 with stdenv; lib.makeOverridable mkDerivation rec {
@@ -26,6 +32,8 @@ with stdenv; lib.makeOverridable mkDerivation rec {
     '';
   };
 
+  vmoptsFile = optionalString (vmopts != null) (writeText vmoptsName vmopts);
+
   nativeBuildInputs = [ makeWrapper patchelf unzip ];
 
   patchPhase = lib.optionalString (!stdenv.isDarwin) ''
@@ -72,7 +80,8 @@ with stdenv; lib.makeOverridable mkDerivation rec {
       --set JDK_HOME "$jdk" \
       --set ${hiName}_JDK "$jdk" \
       --set ANDROID_JAVA_HOME "$jdk" \
-      --set JAVA_HOME "$jdk"
+      --set JAVA_HOME "$jdk" \
+      --set ${hiName}_VM_OPTIONS ${vmoptsFile}
 
     ln -s "$item/share/applications" $out/share
   '';

pkgs/applications/editors/jetbrains/default.nix

@@ -2,12 +2,13 @@
 , python
 , jdk, cmake, libxml2, zlib, python3, ncurses5
 , dotnet-sdk_3
+, vmopts ? null
 }:
 
 with stdenv.lib;
 
 let
-  mkJetBrainsProduct = callPackage ./common.nix { };
+  mkJetBrainsProduct = callPackage ./common.nix { inherit vmopts; };
   # Sorted alphabetically
 
   buildClion = { name, version, src, license, description, wmClass, ... }:

pkgs/top-level/all-packages.nix

@@ -21648,6 +21648,7 @@ in
   };
 
   jetbrains = (recurseIntoAttrs (callPackages ../applications/editors/jetbrains {
+    vmopts = config.jetbrains.vmopts or null;
     jdk = jetbrains.jdk;
   }) // {
     jdk = callPackage ../development/compilers/jetbrains-jdk {  };