1 files changed, 152 insertions, 0 deletions
diff --git a/pkgs/applications/editors/vscode/extensions/ms-dotnettools-csharp/default.nix b/pkgs/applications/editors/vscode/extensions/ms-dotnettools-csharp/default.nix
new file mode 100644
index 00000000000..d91cbccb808
--- /dev/null
+++ b/pkgs/applications/editors/vscode/extensions/ms-dotnettools-csharp/default.nix
@@ -0,0 +1,152 @@
+{ lib
+, fetchurl
+, vscode-utils
+, unzip
+, patchelf
+, makeWrapper
+, icu
+, stdenv
+, openssl
+, mono
+}:
+
+let
+  # Get as close as possible as the `package.json` required version.
+  # This is what drives omnisharp.
+  rtDepsSrcsFromJson = lib.importJSON ./rt-deps-bin-srcs.json;
+
+  rtDepsBinSrcs = builtins.mapAttrs (k: v:
+      let
+        # E.g: "OmniSharp-x86_64-linux"
+        kSplit = builtins.split "(__)" k;
+        name = builtins.elemAt kSplit 0;
+        system = builtins.elemAt kSplit 2;
+      in
+      {
+        inherit name system;
+        installPath = v.installPath;
+        binaries = v.binaries;
+        bin-src = fetchurl {
+          urls = v.urls;
+          inherit (v) sha256;
+        };
+      }
+    )
+    rtDepsSrcsFromJson;
+
+  rtDepBinSrcByName = bSrcName:
+    rtDepsBinSrcs."${bSrcName}__${stdenv.targetPlatform.system}";
+
+  omnisharp = rtDepBinSrcByName "OmniSharp";
+  vsdbgs = [
+    (rtDepBinSrcByName "Debugger")
+  ] ++ lib.optionals (stdenv.isDarwin) [
+  # Include the aarch64-darwin debugger binaries on x86_64-darwin.  Even though OmniSharp will be
+  # running under Rosetta 2, debugging will fail to start if both sets of binaries are not present.
+    (rtDepsBinSrcs."Debugger__aarch64-darwin")
+  ];
+  razor = rtDepBinSrcByName "Razor";
+in
+
+vscode-utils.buildVscodeMarketplaceExtension {
+  mktplcRef = {
+    name = "csharp";
+    publisher = "ms-dotnettools";
+    version = "1.23.16";
+    sha256 = "sha256-fM4vcSMi2tEjIox9Twh2sRiFhXgAeRwAM9to3vtcSqI=";
+  };
+
+  nativeBuildInputs = [
+    unzip
+    patchelf
+    makeWrapper
+  ];
+
+  postPatch = ''
+    declare ext_unique_id
+    # See below as to why we cannot take the whole basename.
+    ext_unique_id="$(basename "$out" | head -c 32)"
+
+    # Fix 'Unable to connect to debuggerEventsPipeName .. exceeds the maximum length 107.' when
+    # attempting to launch a specific test in debug mode. The extension attemps to open
+    # a pipe in extension dir which would fail anyway. We change to target file path
+    # to a path in tmp dir with a short name based on the unique part of the nix store path.
+    # This is however a brittle patch as we're working on minified code.
+    # Hence the attempt to only hold on stable names.
+    # However, this really would better be fixed upstream.
+    sed -i \
+      -E -e 's/(this\._pipePath=[a-zA-Z0-9_]+\.join\()([a-zA-Z0-9_]+\.getExtensionPath\(\)[^,]*,)/\1require("os").tmpdir(), "'"$ext_unique_id"'"\+/g' \
+      "$PWD/dist/extension.js"
+
+    unzip_to() {
+      declare src_zip="''${1?}"
+      declare target_dir="''${2?}"
+      mkdir -p "$target_dir"
+      if unzip "$src_zip" -d "$target_dir"; then
+        true
+      elif [[ "1" -eq "$?" ]]; then
+        1>&2 echo "WARNING: unzip('$?' -> skipped files)."
+      else
+        1>&2 echo "ERROR: unzip('$?')."
+      fi
+    }
+
+    patchelf_add_icu_as_needed() {
+      declare elf="''${1?}"
+      declare icu_major_v="${
+        with builtins; head (splitVersion (parseDrvName icu.name).version)}"
+
+      for icu_lib in icui18n icuuc icudata; do
+        patchelf --add-needed "lib''${icu_lib}.so.$icu_major_v" "$elf"
+      done
+    }
+
+    patchelf_common() {
+      declare elf="''${1?}"
+
+      patchelf_add_icu_as_needed "$elf"
+      patchelf --add-needed "libssl.so" "$elf"
+      patchelf --set-interpreter "$(cat $NIX_CC/nix-support/dynamic-linker)" \
+        --set-rpath "${lib.makeLibraryPath [ stdenv.cc.cc openssl.out icu.out ]}:\$ORIGIN" \
+        "$elf"
+    }
+
+    declare omnisharp_dir="$PWD/${omnisharp.installPath}"
+    unzip_to "${omnisharp.bin-src}" "$omnisharp_dir"
+    rm "$omnisharp_dir/bin/mono"
+    ln -s -T "${mono}/bin/mono" "$omnisharp_dir/bin/mono"
+    chmod a+x "$omnisharp_dir/run"
+    touch "$omnisharp_dir/install.Lock"
+
+  '' + builtins.concatStringsSep "\n" (map (vsdbg: ''
+    declare vsdbg_dir="$PWD/${vsdbg.installPath}"
+    unzip_to "${vsdbg.bin-src}" "$vsdbg_dir"
+    chmod a+x "$vsdbg_dir/vsdbg-ui"
+    chmod a+x "$vsdbg_dir/vsdbg"
+    touch "$vsdbg_dir/install.complete"
+    touch "$vsdbg_dir/install.Lock"
+
+  '') vsdbgs) + ''
+    declare razor_dir="$PWD/${razor.installPath}"
+    unzip_to "${razor.bin-src}" "$razor_dir"
+    chmod a+x "$razor_dir/rzls"
+    touch "$razor_dir/install.Lock"
+
+  '' + lib.optionalString stdenv.isLinux ''
+    patchelf_common "$vsdbg_dir/vsdbg"
+    patchelf_common "$vsdbg_dir/vsdbg-ui"
+    patchelf_common "$razor_dir/rzls"
+
+  '' + lib.optionalString stdenv.isDarwin ''
+    substituteInPlace $omnisharp_dir/etc/config \
+      --replace "libmono-native-compat.dylib" "libmono-native.dylib"
+  '';
+
+  meta = with lib; {
+    description = "C# for Visual Studio Code (powered by OmniSharp)";
+    homepage = "https://github.com/OmniSharp/omnisharp-vscode";
+    license = licenses.mit;
+    maintainers = [ maintainers.jraygauthier ];
+    platforms = [ "x86_64-linux" "x86_64-darwin" ];
+  };
+}