add omnisharp (csharp) (#30)

3 files changed, 48 insertions, 0 deletions

diff --git a/lua/nvim-lsp-installer/server.lua b/lua/nvim-lsp-installer/server.lua
index 5c8ee499..a857073d 100644
--- a/lua/nvim-lsp-installer/server.lua
+++ b/lua/nvim-lsp-installer/server.lua
@@ -19,6 +19,7 @@ local _SERVERS = {
     "graphql",
     "html",
     "jsonls",
+    "omnisharp",
     "pyright",
     "rust_analyzer",
     "solargraph",
diff --git a/lua/nvim-lsp-installer/servers/omnisharp/init.lua b/lua/nvim-lsp-installer/servers/omnisharp/init.lua
new file mode 100644
index 00000000..970b38b1
--- /dev/null
+++ b/lua/nvim-lsp-installer/servers/omnisharp/init.lua
@@ -0,0 +1,19 @@
+local server = require("nvim-lsp-installer.server")
+local path = require("nvim-lsp-installer.path")
+local zx = require("nvim-lsp-installer.installers.zx")
+
+local root_dir = server.get_server_root_path("omnisharp")
+
+return server.Server:new {
+    name = "omnisharp",
+    root_dir = root_dir,
+    installer = zx.file("./install.mjs"),
+    default_options = {
+        cmd = {
+            path.concat { root_dir, "omnisharp", "run" },
+            "--languageserver",
+            "--hostPID",
+            tostring(vim.fn.getpid()),
+        },
+    },
+}
diff --git a/lua/nvim-lsp-installer/servers/omnisharp/install.mjs b/lua/nvim-lsp-installer/servers/omnisharp/install.mjs
new file mode 100644
index 00000000..eba881f0
--- /dev/null
+++ b/lua/nvim-lsp-installer/servers/omnisharp/install.mjs
@@ -0,0 +1,28 @@
+const VERSION = "v1.37.11";
+
+const exitNotSupported = () => {
+    console.error(
+        chalk.red(`${os.platform()} ${os.arch()} is currently not supported.`)
+    );
+    process.exit(1);
+};
+
+const target = (() => {
+    switch (os.platform()) {
+        case "win32": {
+            exitNotSupported();
+            break;
+        }
+        case "darwin":
+            return "omnisharp-osx.zip";
+        default:
+            return "omnisharp-linux-x64.zip";
+    }
+})();
+
+const downloadUrl = `https://github.com/OmniSharp/omnisharp-roslyn/releases/download/${VERSION}/${target}`;
+
+await $`wget -O omnisharp.zip ${downloadUrl}`;
+await $`unzip omnisharp.zip -d omnisharp`;
+await $`chmod +x omnisharp/run`;
+await $`rm omnisharp.zip`;