[feature] Move common parts of language server setup to lsp/init (#1355)

* moving common parts of language server setup to lsp/init

* fix formatting

2 files changed, 13 insertions, 152 deletions

diff --git a/lua/default-config.lua b/lua/default-config.lua
index 25e1d04a..e88fee8d 100644
--- a/lua/default-config.lua
+++ b/lua/default-config.lua
@@ -115,10 +115,6 @@ lvim = {
 }
 
 local schemas = nil
-local lsp = require "lsp"
-local common_on_attach = lsp.common_on_attach
-local common_capabilities = lsp.common_capabilities()
-local common_on_init = lsp.common_on_init
 local status_ok, jsonls_settings = pcall(require, "nlspsettings.jsonls")
 if status_ok then
   schemas = jsonls_settings.get_default_schemas()
@@ -151,9 +147,6 @@ lvim.lang = {
       provider = "beancount",
       setup = {
         cmd = { "beancount-langserver" },
-        on_attach = common_on_attach,
-        on_init = common_on_init,
-        capabilities = common_capabilities,
       },
     },
   },
@@ -180,9 +173,6 @@ lvim.lang = {
           "--clang-tidy",
           "--clang-tidy-checks=-*,llvm-*,clang-analyzer-*",
         },
-        on_attach = common_on_attach,
-        on_init = common_on_init,
-        capabilities = common_capabilities,
       },
     },
   },
@@ -209,9 +199,6 @@ lvim.lang = {
           "--clang-tidy",
           "--clang-tidy-checks=-*,llvm-*,clang-analyzer-*",
         },
-        on_attach = common_on_attach,
-        on_init = common_on_init,
-        capabilities = common_capabilities,
       },
     },
   },
@@ -227,9 +214,6 @@ lvim.lang = {
       provider = "crystalline",
       setup = {
         cmd = { "crystalline" },
-        on_attach = common_on_attach,
-        on_init = common_on_init,
-        capabilities = common_capabilities,
       },
     },
   },
@@ -254,9 +238,6 @@ lvim.lang = {
           "--hostPID",
           tostring(vim.fn.getpid()),
         },
-        on_attach = common_on_attach,
-        on_init = common_on_init,
-        capabilities = common_capabilities,
       },
     },
   },
@@ -274,9 +255,6 @@ lvim.lang = {
         cmd = {
           DATA_PATH .. "/lspinstall/cmake/venv/bin/cmake-language-server",
         },
-        on_attach = common_on_attach,
-        on_init = common_on_init,
-        capabilities = common_capabilities,
       },
     },
   },
@@ -289,9 +267,6 @@ lvim.lang = {
         cmd = {
           DATA_PATH .. "/lspinstall/clojure/clojure-lsp",
         },
-        on_attach = common_on_attach,
-        on_init = common_on_init,
-        capabilities = common_capabilities,
       },
     },
   },
@@ -315,9 +290,6 @@ lvim.lang = {
           DATA_PATH .. "/lspinstall/css/vscode-css/css-language-features/server/dist/node/cssServerMain.js",
           "--stdio",
         },
-        on_attach = common_on_attach,
-        on_init = common_on_init,
-        capabilities = common_capabilities,
       },
     },
   },
@@ -341,9 +313,6 @@ lvim.lang = {
           DATA_PATH .. "/lspinstall/css/vscode-css/css-language-features/server/dist/node/cssServerMain.js",
           "--stdio",
         },
-        on_attach = common_on_attach,
-        on_init = common_on_init,
-        capabilities = common_capabilities,
       },
     },
   },
@@ -359,9 +328,6 @@ lvim.lang = {
       provider = "serve_d",
       setup = {
         cmd = { "serve-d" },
-        on_attach = common_on_attach,
-        on_init = common_on_init,
-        capabilities = common_capabilities,
       },
     },
   },
@@ -381,9 +347,6 @@ lvim.lang = {
           "/usr/lib/dart/bin/snapshots/analysis_server.dart.snapshot",
           "--lsp",
         },
-        on_attach = common_on_attach,
-        on_init = common_on_init,
-        capabilities = common_capabilities,
       },
     },
   },
@@ -397,9 +360,6 @@ lvim.lang = {
           DATA_PATH .. "/lspinstall/dockerfile/node_modules/.bin/docker-langserver",
           "--stdio",
         },
-        on_attach = common_on_attach,
-        on_init = common_on_init,
-        capabilities = common_capabilities,
       },
     },
   },
@@ -417,9 +377,6 @@ lvim.lang = {
         cmd = {
           DATA_PATH .. "/lspinstall/elixir/elixir-ls/language_server.sh",
         },
-        on_attach = common_on_attach,
-        on_init = common_on_init,
-        capabilities = common_capabilities,
       },
     },
   },
@@ -437,8 +394,6 @@ lvim.lang = {
         cmd = {
           DATA_PATH .. "/lspinstall/elm/node_modules/.bin/elm-language-server",
         },
-        on_attach = common_on_attach,
-        on_init = common_on_init,
         -- init_options = {
         -- elmAnalyseTrigger = "change",
         -- elmFormatPath = DATA_PATH .. "/lspinstall/elm/node_modules/.bin/elm-format",
@@ -462,9 +417,6 @@ lvim.lang = {
         cmd = {
           "erlang_ls",
         },
-        on_attach = common_on_attach,
-        on_init = common_on_init,
-        capabilities = common_capabilities,
       },
     },
   },
@@ -479,11 +431,7 @@ lvim.lang = {
     linters = {},
     lsp = {
       provider = "",
-      setup = {
-        on_attach = common_on_attach,
-        on_init = common_on_init,
-        capabilities = common_capabilities,
-      },
+      setup = {},
     },
   },
   fortran = {
@@ -495,9 +443,6 @@ lvim.lang = {
         cmd = {
           DATA_PATH .. "/lspinstall/fortran/venv/bin/fortls",
         },
-        on_attach = common_on_attach,
-        on_init = common_on_init,
-        capabilities = common_capabilities,
       },
     },
   },
@@ -523,9 +468,6 @@ lvim.lang = {
         cmd = {
           DATA_PATH .. "/lspinstall/go/gopls",
         },
-        on_attach = common_on_attach,
-        on_init = common_on_init,
-        capabilities = common_capabilities,
       },
     },
   },
@@ -541,9 +483,6 @@ lvim.lang = {
           "-m",
           "stream",
         },
-        on_attach = common_on_attach,
-        on_init = common_on_init,
-        capabilities = common_capabilities,
       },
     },
   },
@@ -554,9 +493,6 @@ lvim.lang = {
       provider = "hls",
       setup = {
         cmd = { DATA_PATH .. "/lspinstall/haskell/hls" },
-        on_attach = common_on_attach,
-        on_init = common_on_init,
-        capabilities = common_capabilities,
       },
     },
   },
@@ -580,9 +516,6 @@ lvim.lang = {
           DATA_PATH .. "/lspinstall/html/vscode-html/html-language-features/server/dist/node/htmlServerMain.js",
           "--stdio",
         },
-        on_attach = common_on_attach,
-        on_init = common_on_init,
-        capabilities = common_capabilities,
       },
     },
   },
@@ -602,9 +535,6 @@ lvim.lang = {
       provider = "jdtls",
       setup = {
         cmd = { DATA_PATH .. "/lspinstall/java/jdtls.sh" },
-        on_attach = common_on_attach,
-        on_init = common_on_init,
-        capabilities = common_capabilities,
       },
     },
   },
@@ -632,9 +562,6 @@ lvim.lang = {
           DATA_PATH .. "/lspinstall/json/vscode-json/json-language-features/server/dist/node/jsonServerMain.js",
           "--stdio",
         },
-        on_attach = common_on_attach,
-        on_init = common_on_init,
-        capabilities = common_capabilities,
         settings = {
           json = {
             schemas = schemas,
@@ -669,9 +596,6 @@ lvim.lang = {
           -- vim.fn.expand "~/.config/nvim/lua/lsp/julia/run.jl",
           CONFIG_PATH .. "/utils/julia/run.jl",
         },
-        on_attach = common_on_attach,
-        on_init = common_on_init,
-        capabilities = common_capabilities,
       },
     },
   },
@@ -684,8 +608,6 @@ lvim.lang = {
         cmd = {
           DATA_PATH .. "/lspinstall/kotlin/server/bin/kotlin-language-server",
         },
-        on_attach = common_on_attach,
-        on_init = common_on_init,
         root_dir = function(fname)
           local util = require "lspconfig/util"
 
@@ -725,9 +647,6 @@ lvim.lang = {
           "-E",
           DATA_PATH .. "/lspinstall/lua/main.lua",
         },
-        capabilities = common_capabilities,
-        on_attach = common_on_attach,
-        on_init = common_on_init,
         settings = {
           Lua = {
             runtime = {
@@ -811,8 +730,6 @@ lvim.lang = {
           DATA_PATH .. "/lspinstall/php/node_modules/.bin/intelephense",
           "--stdio",
         },
-        on_attach = common_on_attach,
-        on_init = common_on_init,
         filetypes = { "php", "phtml" },
         settings = {
           intelephense = {
@@ -834,9 +751,6 @@ lvim.lang = {
           DATA_PATH .. "/lspinstall/puppet/puppet-editor-services/puppet-languageserver",
           "--stdio",
         },
-        on_attach = common_on_attach,
-        on_init = common_on_init,
-        capabilities = common_capabilities,
       },
     },
   },
@@ -865,9 +779,6 @@ lvim.lang = {
           DATA_PATH .. "/lspinstall/typescript/node_modules/.bin/typescript-language-server",
           "--stdio",
         },
-        on_attach = common_on_attach,
-        on_init = common_on_init,
-        capabilities = common_capabilities,
       },
     },
   },
@@ -895,9 +806,6 @@ lvim.lang = {
           DATA_PATH .. "/lspinstall/typescript/node_modules/.bin/typescript-language-server",
           "--stdio",
         },
-        on_attach = common_on_attach,
-        on_init = common_on_init,
-        capabilities = common_capabilities,
       },
     },
   },
@@ -920,9 +828,6 @@ lvim.lang = {
           DATA_PATH .. "/lspinstall/python/node_modules/.bin/pyright-langserver",
           "--stdio",
         },
-        on_attach = common_on_attach,
-        on_init = common_on_init,
-        capabilities = common_capabilities,
       },
     },
   },
@@ -945,9 +850,6 @@ lvim.lang = {
           "-e",
           "languageserver::run()",
         },
-        on_attach = common_on_attach,
-        on_init = common_on_init,
-        capabilities = common_capabilities,
       },
     },
   },
@@ -966,9 +868,6 @@ lvim.lang = {
           DATA_PATH .. "/lspinstall/ruby/solargraph/solargraph",
           "stdio",
         },
-        on_attach = common_on_attach,
-        on_init = common_on_init,
-        capabilities = common_capabilities,
         filetypes = { "ruby" },
         init_options = {
           formatting = true,
@@ -999,9 +898,6 @@ lvim.lang = {
         cmd = {
           DATA_PATH .. "/lspinstall/rust/rust-analyzer",
         },
-        on_attach = common_on_attach,
-        on_init = common_on_init,
-        capabilities = common_capabilities,
       },
     },
   },
@@ -1015,11 +911,7 @@ lvim.lang = {
     linters = { "" },
     lsp = {
       provider = "metals",
-      setup = {
-        on_attach = common_on_attach,
-        on_init = common_on_init,
-        capabilities = common_capabilities,
-      },
+      setup = {},
     },
   },
   sh = {
@@ -1037,9 +929,6 @@ lvim.lang = {
           DATA_PATH .. "/lspinstall/bash/node_modules/.bin/bash-language-server",
           "start",
         },
-        on_attach = common_on_attach,
-        on_init = common_on_init,
-        capabilities = common_capabilities,
       },
     },
   },
@@ -1053,9 +942,6 @@ lvim.lang = {
           DATA_PATH .. "/lspinstall/svelte/node_modules/.bin/svelteserver",
           "--stdio",
         },
-        on_attach = common_on_attach,
-        on_init = common_on_init,
-        capabilities = common_capabilities,
       },
     },
   },
@@ -1074,9 +960,6 @@ lvim.lang = {
           "xcrun",
           "sourcekit-lsp",
         },
-        on_attach = common_on_attach,
-        on_init = common_on_init,
-        capabilities = common_capabilities,
       },
     },
   },
@@ -1107,9 +990,6 @@ lvim.lang = {
           DATA_PATH .. "/lspinstall/terraform/terraform-ls",
           "serve",
         },
-        on_attach = common_on_attach,
-        on_init = common_on_init,
-        capabilities = common_capabilities,
       },
     },
   },
@@ -1120,9 +1000,6 @@ lvim.lang = {
       provider = "texlab",
       setup = {
         cmd = { DATA_PATH .. "/lspinstall/latex/texlab" },
-        on_attach = common_on_attach,
-        on_init = common_on_init,
-        capabilities = common_capabilities,
       },
     },
   },
@@ -1150,9 +1027,6 @@ lvim.lang = {
           DATA_PATH .. "/lspinstall/typescript/node_modules/.bin/typescript-language-server",
           "--stdio",
         },
-        on_attach = common_on_attach,
-        on_init = common_on_init,
-        capabilities = common_capabilities,
       },
     },
   },
@@ -1181,9 +1055,6 @@ lvim.lang = {
           DATA_PATH .. "/lspinstall/typescript/node_modules/.bin/typescript-language-server",
           "--stdio",
         },
-        on_attach = common_on_attach,
-        on_init = common_on_init,
-        capabilities = common_capabilities,
       },
     },
   },
@@ -1197,9 +1068,6 @@ lvim.lang = {
           DATA_PATH .. "/lspinstall/vim/node_modules/.bin/vim-language-server",
           "--stdio",
         },
-        on_attach = common_on_attach,
-        on_init = common_on_init,
-        capabilities = common_capabilities,
       },
     },
   },
@@ -1225,9 +1093,6 @@ lvim.lang = {
         cmd = {
           DATA_PATH .. "/lspinstall/vue/node_modules/.bin/vls",
         },
-        on_attach = common_on_attach,
-        on_init = common_on_init,
-        capabilities = common_capabilities,
       },
     },
   },
@@ -1250,9 +1115,6 @@ lvim.lang = {
           DATA_PATH .. "/lspinstall/yaml/node_modules/.bin/yaml-language-server",
           "--stdio",
         },
-        on_attach = common_on_attach,
-        on_init = common_on_init,
-        capabilities = common_capabilities,
       },
     },
   },
@@ -1265,9 +1127,6 @@ lvim.lang = {
         cmd = {
           "zls",
         },
-        on_attach = common_on_attach,
-        on_init = common_on_init,
-        capabilities = common_capabilities,
       },
     },
   },
@@ -1282,9 +1141,6 @@ lvim.lang = {
           "localhost",
           "6008",
         },
-        on_attach = common_on_attach,
-        on_init = common_on_init,
-        capabilities = common_capabilities,
       },
     },
   },
@@ -1295,9 +1151,6 @@ lvim.lang = {
       provider = "powershell_es",
       setup = {
         bundle_path = "",
-        on_attach = common_on_attach,
-        on_init = common_on_init,
-        capabilities = common_capabilities,
       },
     },
   },
@@ -1320,9 +1173,6 @@ lvim.lang = {
           local util = require "lspconfig/util"
           return util.root_pattern ".git"(fname) or vim.fn.getcwd()
         end,
-        on_attach = common_on_attach,
-        on_init = common_on_init,
-        capabilities = common_capabilities,
       },
     },
   },
diff --git a/lua/lsp/init.lua b/lua/lsp/init.lua
index 1a6ceda3..631f142a 100644
--- a/lua/lsp/init.lua
+++ b/lua/lsp/init.lua
@@ -138,6 +138,17 @@ function M.setup(lang)
 
   if lsp.provider ~= nil and lsp.provider ~= "" then
     local lspconfig = require "lspconfig"
+
+    if not lsp.setup.on_attach then
+      lsp.setup.on_attach = M.common_on_attach
+    end
+    if not lsp.setup.on_init then
+      lsp.setup.on_init = M.common_on_init
+    end
+    if not lsp.setup.capabilities then
+      lsp.setup.capabilities = M.common_capabilities()
+    end
+
     lspconfig[lsp.provider].setup(lsp.setup)
   end
 end