feat(groovyls) now is installable

1 files changed, 83 insertions, 13 deletions

diff --git a/lua/nvim_lsp/groovyls.lua b/lua/nvim_lsp/groovyls.lua
index 0f726e55..17cc731a 100644
--- a/lua/nvim_lsp/groovyls.lua
+++ b/lua/nvim_lsp/groovyls.lua
@@ -1,27 +1,97 @@
 local configs = require 'nvim_lsp/configs'
 local util = require 'nvim_lsp/util'
-local groovy_server_path = "~/groovyls/build/libs/groovyls-all.jar"
 
-configs.groovyls = {
-  default_config = {
+local name = "groovyls"
 
-    cmd = {
-      "java", "-jar", groovy_server_path,
-    };
-    filetypes = {"groovy", "gsp"};
-    root_dir = util.root_pattern("grails-app", ".git");
+local function make_installer()
+  local P = util.path.join
+  local install_dir = P{util.base_install_dir, name}
+
+  local bin = P{install_dir, "groovy-language-server/build/libs/groovy-language-server.jar"}
+  local cmd = {"java", "-jar", 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("java")) then
+      error('Need "Java 11+" to install this.')
+      return
+    end
+
+    local script = [=[
+set -e
+# clone project
+git clone https://github.com/prominic/groovy-language-server.git
+cd groovy-language-server
+
+# build
+./gradlew build
+    ]=]
+
+    vim.fn.mkdir(install_info.install_dir, "p")
+    util.sh(script, install_info.install_dir)
+  end
+  function X.info()
+    print(vim.inspect(cmd))
+    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 = {
+    cmd = cmd;
+    filetypes = {"groovy"};
+    root_dir = util.root_pattern("build.gradle", "pom.xml", "grails-app", ".git");
   };
-  -- on_new_config = function(new_config) end;
-  -- on_attach = function(client, bufnr) end;
+  on_new_config = function(config)
+    installer.configure(config)
+  end;
   docs = {
     description = [[
-https://github.com/prominic/groovy-language-server
+https://github.com/sumneko/groovylstmp-language-server
+
+Lua language server. **By default, this doesn't have a `cmd` set.** This is
+because it doesn't provide a global binary. We provide an installer for Linux
+and macOS using `:LspInstall`.  If you wish to install it yourself, [here is a
+guide](https://github.com/sumneko/groovylstmp-language-server/wiki/Build-and-Run-(Standalone)).
+So you should set `cmd` yourself like this.
 
-Groovy Language Server
+```groovylstmp
+require'nvim_lsp'.sumneko_groovylstmp.setup{
+  cmd = {"path", "to", "cmd"};
+  ...
+}
+```
+
+If you install via our installer, if you execute `:LspInstallInfo sumneko_groovylstmp`, you can know `cmd` value.
 ]];
     default_config = {
-      root_dir = [[root_pattern("grails-app", ".git")]];
+      filetypes = { "groovy" };
+      root_dir = [[root_pattern("build.gradle", "pom.xml", "grails-app", ".git")]];
     };
   };
 }
+
+configs[name].install = installer.install
+configs[name].install_info = installer.info
 -- vim:et ts=2 sw=2