volatility3: fix read-only symbol/cache paths (#499092)

pkgs/by-name/vo/volatility3/package.nix

@@ -1,6 +1,7 @@
 {
   lib,
   fetchFromGitHub,
+  makeWrapper,
   python3,
 }:
 
@@ -18,6 +19,8 @@ python3.pkgs.buildPythonApplication (finalAttrs: {
 
   build-system = with python3.pkgs; [ setuptools ];
 
+  nativeBuildInputs = [ makeWrapper ];
+
   dependencies = with python3.pkgs; [
     capstone
     jsonschema
@@ -30,6 +33,18 @@ python3.pkgs.buildPythonApplication (finalAttrs: {
     export HOME=$(mktemp -d);
   '';
 
+  postFixup = ''
+    for executable in vol volshell; do
+      wrapProgram $out/bin/$executable \
+        --run 'volatility3_data_dir="''${XDG_DATA_HOME:-$HOME/.local/share}/volatility3"
+               mkdir -p "$volatility3_data_dir/symbols"' \
+        --run 'volatility3_cache_dir="''${XDG_CACHE_HOME:-$HOME/.cache}/volatility3"
+               mkdir -p "$volatility3_cache_dir"' \
+        --add-flags '--symbol-dirs "''${XDG_DATA_HOME:-$HOME/.local/share}/volatility3/symbols"' \
+        --add-flags '--cache-path "''${XDG_CACHE_HOME:-$HOME/.cache}/volatility3"'
+    done
+  '';
+
   # Project has no tests
   doCheck = false;
 
@@ -44,6 +59,9 @@ python3.pkgs.buildPythonApplication (finalAttrs: {
       free = false;
       url = "https://www.volatilityfoundation.org/license/vsl-v1.0";
     };
-    maintainers = with lib.maintainers; [ fab ];
+    maintainers = with lib.maintainers; [
+      caverav
+      fab
+    ];
   };
 })