nvim: simplify completion sources

.config/nvim/lua/my/completion.lua

@@ -43,6 +43,8 @@ if cmp and luasnip then
         sources = cmp.config.sources({
             { name = 'nvim_lsp' },
             { name = 'luasnip' },
+            { name = 'nvim_lua' },
+            { name = 'dictionary' },
             { name = 'zsh' },
         }, {
             { name = 'buffer' },
@@ -50,25 +52,6 @@ if cmp and luasnip then
         })
     })
 
-    -- set configuration for specific filetypes
-    cmp.setup.filetype('lua', {
-        sources = cmp.config.sources({
-            { name = 'nvim_lsp' },
-            { name = 'luasnip' },
-            { name = 'nvim_lua' },
-        }, {
-            { name = 'buffer' },
-        })
-    })
-
-    cmp.setup.filetype({ 'gitcommit', 'NeogitCommitMessage' }, {
-        sources = cmp.config.sources({
-            { name = 'dictionary' }
-        }, {
-            { name = 'buffer' }
-        })
-    })
-
     -- Use buffer source for `/`
     cmp.setup.cmdline('/', {
         mapping = cmp.mapping.preset.cmdline(),
@@ -93,6 +76,9 @@ if cmp and luasnip then
         dic = {
             ['gitcommit'] =
             vim.fn.stdpath('config') .. '/resources/git.dict',
+            -- doesn't work, filetype is probably set too late
+            ['NeogitCommitMessage'] =
+            vim.fn.stdpath('config') .. '/resources/git.dict',
         }
     })