From 81cd9a6c796403b8a8105fad193969bcd857ddd0 Mon Sep 17 00:00:00 2001
From: Alex Yatskov <alex@foosoft.net>
Date: Tue, 15 Nov 2022 20:20:48 -0800
Subject: [PATCH] Conditionally include lsp

---
 lua/lsp.lua     | 37 +++++++++++++++++++++++--------------
 lua/plugins.lua | 42 ++++++++++++++++++++++--------------------
 2 files changed, 45 insertions(+), 34 deletions(-)

diff --git a/lua/lsp.lua b/lua/lsp.lua
index 78cf134..6785e4d 100644
--- a/lua/lsp.lua
+++ b/lua/lsp.lua
@@ -8,21 +8,30 @@ local capabilities = cmp_nvim_lsp.default_capabilities({snippetSupport = false})
 
 -- nvim-lspconfig
 local nvim_lspconfig = require('lspconfig')
-nvim_lspconfig.clangd.setup({capabilities = capabilities})
-nvim_lspconfig.gopls.setup({capabilities = capabilities})
-nvim_lspconfig.jedi_language_server.setup({capabilities = capabilities})
-nvim_lspconfig.rust_analyzer.setup({capabilities = capabilities})
-nvim_lspconfig.tsserver.setup({capabilities = capabilities})
-nvim_lspconfig.sumneko_lua.setup({
-    settings = {
-        Lua = {
-            diagnostics = {globals = {'vim'}},
-            runtime = {version = 'LuaJIT'},
-            telemetry = {enable = false},
-            workspace = {library = vim.api.nvim_get_runtime_file('', true)},
+if vim.fn.executable('clangd') then
+    nvim_lspconfig.clangd.setup({capabilities = capabilities})
+end
+if vim.fn.executable('gopls') then
+    nvim_lspconfig.gopls.setup({capabilities = capabilities})
+end
+if vim.fn.executable('jedi-language-server') then
+    nvim_lspconfig.jedi_language_server.setup({capabilities = capabilities})
+end
+if vim.fn.executable('typescript-language-server') then
+    nvim_lspconfig.tsserver.setup({capabilities = capabilities})
+end
+if vim.fn.executable('lua-language-server') then
+    nvim_lspconfig.sumneko_lua.setup({
+        settings = {
+            Lua = {
+                diagnostics = {globals = {'vim'}},
+                runtime = {version = 'LuaJIT'},
+                telemetry = {enable = false},
+                workspace = {library = vim.api.nvim_get_runtime_file('', true)},
+            },
         },
-    },
-})
+    })
+end
 
 vim.keymap.set('n', '<C-k>', vim.lsp.buf.signature_help)
 vim.keymap.set('n', '<space>D', vim.lsp.buf.type_definition)
diff --git a/lua/plugins.lua b/lua/plugins.lua
index 84853e5..6e2d86c 100644
--- a/lua/plugins.lua
+++ b/lua/plugins.lua
@@ -1,26 +1,28 @@
 -- fzf.vim
-vim.g['$FZF_DEFAULT_COMMAND'] = 'ag --hidden --ignore .git -f -g "" 2> /dev/null'
+if vim.fn.executable('fzf') then
+    vim.g['$FZF_DEFAULT_COMMAND'] = 'ag --hidden --ignore .git -f -g "" 2> /dev/null'
 
-vim.keymap.set('n', '<leader>fg', vim.cmd.GFiles)
-vim.keymap.set('n', '<leader>fh', vim.cmd.History)
-vim.keymap.set('n', '<leader>fb', vim.cmd.Buffers)
-vim.keymap.set('n', '<leader>fl', vim.cmd.Lines)
+    vim.keymap.set('n', '<leader>fg', vim.cmd.GFiles)
+    vim.keymap.set('n', '<leader>fh', vim.cmd.History)
+    vim.keymap.set('n', '<leader>fb', vim.cmd.Buffers)
+    vim.keymap.set('n', '<leader>fl', vim.cmd.Lines)
 
-vim.g.fzf_colors = {
-    ['bg']      = {'bg', 'Normal'},
-    ['bg+']     = {'bg', 'CursorLine', 'CursorColumn'},
-    ['border']  = {'fg', 'Ignore'},
-    ['fg']      = {'fg', 'Normal'},
-    ['fg+']     = {'fg', 'CursorLine', 'CursorColumn', 'Normal'},
-    ['header']  = {'fg', 'Comment'},
-    ['hl']      = {'fg', 'Comment'},
-    ['hl+']     = {'fg', 'Statement'},
-    ['info']    = {'fg', 'PreProc'},
-    ['marker']  = {'fg', 'Keyword'},
-    ['pointer'] = {'fg', 'Exception'},
-    ['prompt']  = {'fg', 'Conditional'},
-    ['spinner'] = {'fg', 'Label'},
-}
+    vim.g.fzf_colors = {
+        ['bg']      = {'bg', 'Normal'},
+        ['bg+']     = {'bg', 'CursorLine', 'CursorColumn'},
+        ['border']  = {'fg', 'Ignore'},
+        ['fg']      = {'fg', 'Normal'},
+        ['fg+']     = {'fg', 'CursorLine', 'CursorColumn', 'Normal'},
+        ['header']  = {'fg', 'Comment'},
+        ['hl']      = {'fg', 'Comment'},
+        ['hl+']     = {'fg', 'Statement'},
+        ['info']    = {'fg', 'PreProc'},
+        ['marker']  = {'fg', 'Keyword'},
+        ['pointer'] = {'fg', 'Exception'},
+        ['prompt']  = {'fg', 'Conditional'},
+        ['spinner'] = {'fg', 'Label'},
+    }
+end
 
 -- hflip.nvim
 vim.keymap.set('n', 'gfs', vim.cmd.HFlip)