1 files changed, 82 insertions, 0 deletions
diff --git a/pkgs/applications/editors/vscode/with-extensions.nix b/pkgs/applications/editors/vscode/with-extensions.nix
new file mode 100644
index 000000000000..c54c8a4277f1
--- /dev/null
+++ b/pkgs/applications/editors/vscode/with-extensions.nix
@@ -0,0 +1,82 @@
+{ stdenv, lib, fetchurl, runCommand, buildEnv, vscode, which, writeScript
+, vscodeExtensions ? [] }:
+
+/*
+  `vscodeExtensions`
+   :  A set of vscode extensions to be installed alongside the editor. Here's a an
+      example:
+
+      ~~~
+      vscode-with-extensions.override {
+
+        # When the extension is already available in the default extensions set.
+        vscodeExtensions = with vscode-extensions; [
+          bbenoist.Nix
+        ]   
+
+        # Concise version from the vscode market place when not available in the default set.
+        ++ vscode-utils.extensionsFromVscodeMarketplace [
+          {
+            name = "code-runner";
+            publisher = "formulahendry";
+            version = "0.6.33";
+            sha256 = "166ia73vrcl5c9hm4q1a73qdn56m0jc7flfsk5p5q41na9f10lb0";
+          }
+        ];
+      }
+      ~~~
+
+      This expression should fetch 
+       -  the *nix* vscode extension from whatever source defined in the
+          default nixpkgs extensions set `vscodeExtensions`.
+
+       -  the *code-runner* vscode extension from the marketplace using the 
+          following url:
+
+          ~~~
+          https://bbenoist.gallery.vsassets.io/_apis/public/gallery/publisher/bbenoist/extension/nix/1.0.1/assetbyname/Microsoft.VisualStudio.Services.VSIXPackage
+          ~~~
+
+      The original `code` executable will be wrapped so that it uses the set of pre-installed / unpacked
+      extensions as its `--extensions-dir`.
+*/
+
+let
+
+  wrappedPkgVersion = lib.getVersion vscode;
+  wrappedPkgName = lib.removeSuffix "-${wrappedPkgVersion}" vscode.name;
+
+  combinedExtensionsDrv = buildEnv {
+    name = "${wrappedPkgName}-extensions-${wrappedPkgVersion}";
+    paths = vscodeExtensions;
+  };
+
+  wrappedExeName = "code";
+  exeName = wrappedExeName;
+
+  wrapperExeFile = writeScript "${exeName}" ''
+    #!${stdenv.shell}
+    exec ${vscode}/bin/${wrappedExeName} \
+      --extensions-dir "${combinedExtensionsDrv}/share/${wrappedPkgName}/extensions" \
+      "$@"
+  '';
+
+in
+
+# When no extensions are requested, we simply redirect to the original
+# non-wrapped vscode executable.
+runCommand "${wrappedPkgName}-with-extensions-${wrappedPkgVersion}" {
+  buildInputs = [ vscode which ];
+  dontPatchELF = true;
+  dontStrip = true;
+  meta = vscode.meta;
+} ''
+  mkdir -p "$out/bin"
+  ${if [] == vscodeExtensions
+    then ''
+      ln -sT "${vscode}/bin/${wrappedExeName}" "$out/bin/${exeName}"
+    ''
+    else ''
+      ln -sT "${wrapperExeFile}" "$out/bin/${exeName}"
+    ''}
+''