add csharpls (#294)

Resolves #291.

1 files changed, 41 insertions, 0 deletions

diff --git a/lua/nvim-lsp-installer/servers/csharp_ls/init.lua b/lua/nvim-lsp-installer/servers/csharp_ls/init.lua
new file mode 100644
index 00000000..956689e6
--- /dev/null
+++ b/lua/nvim-lsp-installer/servers/csharp_ls/init.lua
@@ -0,0 +1,41 @@
+local server = require "nvim-lsp-installer.server"
+local path = require "nvim-lsp-installer.path"
+local process = require "nvim-lsp-installer.process"
+local std = require "nvim-lsp-installer.installers.std"
+
+return function(name, root_dir)
+    return server.Server:new {
+        name = name,
+        root_dir = root_dir,
+        languages = { "c#" },
+        homepage = "https://github.com/razzmatazz/csharp-language-server",
+        installer = {
+            std.ensure_executables {
+                {
+                    "dotnet",
+                    "dotnet was not found in path. Refer to https://dotnet.microsoft.com/download for installation instructions.",
+                },
+            },
+            ---@type ServerInstallerFunction
+            function(_, callback, ctx)
+                process.spawn("dotnet", {
+                    args = { "tool", "update", "--tool-path", ".", "csharp-ls" },
+                    cwd = ctx.install_dir,
+                    stdio_sink = ctx.stdio_sink,
+                }, function(success)
+                    if not success then
+                        ctx.stdio_sink.stderr "Failed to install csharp-ls.\n"
+                        callback(false)
+                    else
+                        callback(true)
+                    end
+                end)
+            end,
+        },
+        default_options = {
+            cmd = {
+                path.concat { root_dir, "csharp-ls" },
+            },
+        },
+    }
+end