init

1 files changed, 133 insertions, 0 deletions

diff --git a/lua/nvim-lsp-installer/installer.lua b/lua/nvim-lsp-installer/installer.lua
new file mode 100644
index 00000000..765b0985
--- /dev/null
+++ b/lua/nvim-lsp-installer/installer.lua
@@ -0,0 +1,133 @@
+local M = {}
+
+local _INSTALLERS = {
+    'vim-ls',
+    'graphql-ls',
+    'lua-ls',
+    'typescript-ls',
+    'css-ls',
+    'html-ls',
+    'json-ls',
+    'yaml-ls',
+    'bash-ls',
+    'docker-ls',
+    'ruby-ls',
+    'eslint-ls',
+}
+
+local function escape_quotes(str)
+    return string.format("%q", str)
+end
+
+function M.get_server_installer(server)
+    return require('nvim-lsp-installer.installers.' .. server)
+end
+
+function M.get_available_servers() return _INSTALLERS end
+
+function M.get_installed_servers()
+    local installed_servers = {}
+    for _, server in ipairs(M.get_available_servers()) do
+        local module = M.get_server_installer(server)
+        if os.execute('test -d ' .. escape_quotes(module.root_dir)) == 0 then
+            table.insert(installed_servers, server)
+        end
+    end
+    return installed_servers
+end
+
+function M.get_uninstalled_servers()
+    local installed_servers = M.get_installed_servers()
+    return vim.tbl_filter(
+        function (server)
+            return not vim.tbl_contains(installed_servers, server)
+        end,
+        M.get_available_servers()
+    )
+end
+
+local function _uninstall(server)
+    local installer = M.get_server_installer(server)
+
+    -- giggity
+    if os.execute('rm -rf ' .. escape_quotes(installer.root_dir)) ~= 0 then
+        error('Could not remove LSP server directory ' .. installer.root_dir)
+    end
+end
+
+local function _install(server)
+    local installer = M.get_server_installer(server)
+
+    if installer.pre_install then
+        installer.pre_install()
+    end
+
+    -- We run uninstall after pre_install because we don't want to
+    -- unnecessarily uninstall a server should it no longer pass the
+    -- pre_install check.
+    _uninstall(server)
+
+    if os.execute('mkdir -p ' .. escape_quotes(installer.root_dir)) ~= 0 then
+        error('Could not create LSP server directory ' .. installer.root_dir)
+    end
+
+    local shell = vim.o.shell
+    vim.o.shell = '/bin/bash'
+    vim.cmd [[new]]
+    vim.fn.termopen(
+        'set -e;\n' .. installer.install_cmd,
+        {
+            cwd = installer.root_dir,
+            on_exit = function (_, exit_code)
+                if exit_code ~= 0 then
+                    vim.api.nvim_err_writeln("Installer failed for " .. server .. ". Exit code: " .. exit_code)
+                    _uninstall(server)
+                else
+                    print("Successfully installed " .. server)
+                end
+
+            end
+        }
+    )
+    vim.o.shell = shell
+    vim.cmd([[startinsert]]) -- so that the buffer tails the term log nicely
+end
+
+function M.install(server)
+    local success, error = pcall(_install, server)
+    if not success then
+        pcall(_uninstall, server)
+        vim.api.nvim_err_writeln("Failed to install " .. server .. ". Error=" .. vim.inspect(error))
+    end
+    return success
+end
+
+function M.uninstall(server)
+    local success, error = pcall(_uninstall, server)
+    if not success then
+        vim.api.nvim_err_writeln('Unable to uninstall ' .. server .. '. Error=' .. vim.inspect(error))
+        return success
+    end
+    print("Successfully uninstalled " .. server)
+    return success
+end
+
+function M.get_server_root_path(server)
+    return vim.fn.stdpath('data') .. "/lsp_servers/" .. server
+end
+
+function M.create_lsp_config_installer(module)
+    return {
+        install_cmd = module.install_cmd,
+        root_dir = module.root_dir,
+        pre_install = module.pre_install,
+        setup = function(opts)
+            require'lspconfig'[module.name].setup(
+                vim.tbl_deep_extend('force', module.default_options, opts)
+            )
+        end,
+        extras = module.extras or {},
+    }
+end
+
+return M