1 files changed, 153 insertions, 0 deletions
diff --git a/lua/lspconfig/pyls_ms.lua b/lua/lspconfig/pyls_ms.lua
new file mode 100644
index 00000000..a1a8b687
--- /dev/null
+++ b/lua/lspconfig/pyls_ms.lua
@@ -0,0 +1,153 @@
+local configs = require 'lspconfig/configs'
+local util = require 'lspconfig/util'
+
+local name = "pyls_ms"
+
+local function get_latest_pyls()
+  local f = io.popen("curl -k --silent 'https://pvsc.blob.core.windows.net/python-language-server-stable?restype=container&comp=list&prefix=Python-Language-Server-osx-x64'")
+  local l = f:read("*a")
+  f:close()
+  local version
+  for w in  string.gmatch (l, "x64%.(.-).nupkg") do
+      version = w
+  end
+  return version
+end
+
+local function make_installer()
+  local P = util.path.join
+  local install_dir = P{util.base_install_dir, name}
+
+  local bin = P{install_dir, "Microsoft.Python.LanguageServer.dll"}
+  local cmd = {"dotnet", "exec", bin}
+
+  local X = {}
+  function X.install()
+    local install_info = X.info()
+    if install_info.is_installed then
+      print(name, "is already installed")
+      return
+    end
+    if not (util.has_bins("curl")) then
+      error('Need "curl" to install this.')
+      return
+    end
+    if not (util.has_bins("dotnet")) then
+      error('Need ".NET Core" to install this.')
+      return
+    end
+
+    local system
+    if vim.fn.has('mac') == 1 then
+      system = 'osx'
+    elseif vim.fn.has('unix') == 1 then
+      system = 'linux'
+    elseif vim.fn.has('win32') == 1 then
+      system = 'win'
+    else
+      error('Unable to identify host operating system')
+    end
+
+    local version = get_latest_pyls()
+    local url = string.format("https://pvsc.azureedge.net/python-language-server-stable/Python-Language-Server-%s-x64.%s.nupkg", string.lower(system), version)
+    local download_cmd = string.format('curl -fLo %s --create-dirs %s', install_info.install_dir .. "/pyls.nupkg", url)
+    local install_cmd = ''
+
+    if vim.fn.has('mac') == 1 or vim.fn.has('unix') == 1 then
+      install_cmd = "unzip " .. install_info.install_dir .. "/pyls.nupkg -d " .. install_info.install_dir
+    elseif vim.fn.has('win32') == 1 then
+      install_cmd = "Expand-Archive -Force " .. install_info.install_dir .. "/pyls.nupkg -d " .. install_info.install_dir
+    end
+
+    vim.fn.system(download_cmd)
+    vim.fn.system(install_cmd)
+  end
+  function X.info()
+    return {
+      is_installed = util.path.exists(bin);
+      install_dir = install_dir;
+      cmd = cmd;
+    }
+  end
+  function X.configure(config)
+    local install_info = X.info()
+    if install_info.is_installed then
+      config.cmd = cmd
+    end
+  end
+  return X
+end
+
+local installer = make_installer()
+
+configs[name] = {
+
+  default_config = {
+    filetypes = {"python"};
+    root_dir = function(fname)
+      return util.find_git_ancestor(fname) or vim.loop.os_homedir()
+    end;
+    settings = {
+      python = {
+        analysis = {
+          errors = {};
+          info = {};
+          disabled = {};
+        };
+      };
+    };
+    on_new_config = function(config)
+      installer.configure(config)
+    end;
+    init_options = {
+      interpreter = {
+        properties =
+        {
+          InterpreterPath = "";
+          Version = "";
+        };
+      };
+      displayOptions = {};
+      analysisUpdates = true;
+      asyncStartup = true;
+    };
+  };
+  docs = {
+    description = [[
+https://github.com/Microsoft/python-language-server
+
+`python-language-server`, a language server for Python.
+
+Requires [.NET Core](https://docs.microsoft.com/en-us/dotnet/core/tools/dotnet-install-script) to run. On Linux or macOS:
+
+```bash
+curl -L https://dot.net/v1/dotnet-install.sh | sh
+```
+
+`python-language-server` can be installed via `:LspInstall pyls_ms` or you can [build](https://github.com/microsoft/python-language-server/blob/master/CONTRIBUTING.md#setup) your own.
+
+If you want to use your own build, set cmd to point to `Microsoft.Python.languageServer.dll`.
+
+```lua
+cmd = { "dotnet", "exec", "path/to/Microsoft.Python.languageServer.dll" };
+```
+
+If the `python` interpreter is not in your PATH environment variable, set the `InterpreterPath` and `Version` properties accordingly.
+
+```lua
+InterpreterPath = "path/to/python",
+Version = "3.8"
+```
+
+This server accepts configuration via the `settings` key.
+
+    ]];
+    default_config = {
+      root_dir = "vim's starting directory";
+    };
+  };
+};
+
+configs[name].install = installer.install
+configs[name].install_info = installer.info
+-- vim:et ts=2 sw=2