1 files changed, 50 insertions, 0 deletions
diff --git a/nixpkgs/pkgs/development/tools/omnisharp-roslyn/default.nix b/nixpkgs/pkgs/development/tools/omnisharp-roslyn/default.nix
new file mode 100644
index 000000000000..e0710079b62a
--- /dev/null
+++ b/nixpkgs/pkgs/development/tools/omnisharp-roslyn/default.nix
@@ -0,0 +1,50 @@
+{ lib, stdenv
+, fetchurl
+, mono
+, msbuild
+, dotnet-sdk
+, makeWrapper
+, dotnetPackages
+}:
+
+stdenv.mkDerivation rec {
+
+  pname = "omnisharp-roslyn";
+  version = "1.37.8";
+
+  src = fetchurl {
+    url = "https://github.com/OmniSharp/omnisharp-roslyn/releases/download/v${version}/omnisharp-mono.tar.gz";
+    sha256 = "0kgv4l15rli9a7grmcsbv72csmxi7vqa7lrrr8bd4cq9ighh54q3";
+  };
+
+  nativeBuildInputs = [ makeWrapper dotnet-sdk dotnetPackages.Nuget ];
+
+  preUnpack = ''
+    mkdir src
+    cd src
+    sourceRoot=.
+  '';
+
+  installPhase = ''
+    mkdir -p $out/bin
+    cd ..
+    cp -r src $out/
+    rm -r $out/src/.msbuild
+    cp -r ${msbuild}/lib/mono/msbuild $out/src/.msbuild
+
+    chmod -R u+w $out/src
+    mv $out/src/.msbuild/Current/{bin,Bin}
+
+    makeWrapper ${mono}/bin/mono $out/bin/omnisharp \
+    --add-flags "$out/src/OmniSharp.exe"
+  '';
+
+  meta = with lib; {
+    description = "OmniSharp based on roslyn workspaces";
+    homepage = "https://github.com/OmniSharp/omnisharp-roslyn";
+    platforms = platforms.linux;
+    license = licenses.mit;
+    maintainers = with maintainers; [ tesq0 ericdallo ];
+  };
+
+}