yes there's a bit of java in my nvim config why do you ask?

1 files changed, 170 insertions, 0 deletions

diff --git a/lua/conf/plugins/cmp.lua b/lua/conf/plugins/cmp.lua
new file mode 100644
index 0000000..5dbb6ed
--- /dev/null
+++ b/lua/conf/plugins/cmp.lua
@@ -0,0 +1,170 @@
+local function has_words_before()
+  unpack = unpack or table.unpack
+  local line, col = unpack(vim.api.nvim_win_get_cursor(0))
+  return col ~= 0 and vim.api.nvim_buf_get_lines(0, line - 1, line, true)
+    [1]:sub(col, col):match("%s") == nil
+end
+
+return { 'hrsh7th/nvim-cmp',
+  requires = {
+    'danymat/neogen',
+    'nvim-treesitter/nvim-treesitter',
+    'lukas-reineke/cmp-under-comparator' -- better results
+  },
+
+  -- suppliers for completions (they require nvim-cmp to be loaded before they are)
+  deps = {
+    'hrsh7th/cmp-buffer', -- buffers
+    'FelipeLema/cmp-async-path', -- path
+    'hrsh7th/cmp-nvim-lsp', -- lsp
+    'hrsh7th/cmp-nvim-lsp-signature-help', -- completion information
+    { 'L3MON4D3/cmp-luasnip-choice', -- luasnip
+      requires = 'L3MON4D3/LuaSnip'
+    }
+  },
+
+  function()
+    local cmp = require('cmp')
+    local luasnip = require('luasnip')
+    local neogen = require('neogen')
+
+    cmp.setup {
+      -- disable when in comments
+      enabled = function()
+        local context = require('cmp.config.context')
+        if vim.api.nvim_get_mode().mode == 'c' then
+          return true
+        else
+          return not context.in_treesitter_capture("comment")
+            and not context.in_syntax_group("Comment")
+        end
+      end,
+
+      -- completion sources
+      sources = cmp.config.sources {
+        { name = 'nvim_lsp', priority = 999 },
+        { name = 'luasnip_choice', priority = 750 },
+        { name = 'buffer', max_item_count = 3 },
+        { name = 'async_path', max_item_count = 5 },
+        { name = 'neorg' },
+        { name = 'nvim_lsp_signature_help' }
+      },
+
+      -- how to sort results
+      sorting = {
+        comparators = {
+          cmp.config.compare.offset,
+          cmp.config.compare.exact,
+          cmp.config.compare.score,
+          require('cmp-under-comparator').under,
+          cmp.config.compare.kind,
+          cmp.config.compare.sort_text,
+          cmp.config.compare.length,
+          cmp.config.compare.order,
+        }
+      },
+
+      -- appearance of window
+      window = {
+        completion = {
+          scrollbar = false,
+          border = 'solid',
+          winhighlight = "Normal:WinBarNC,FloatBorder:WinBarNC,Search:WinBarNC",
+        },
+        documentation = {
+          border = 'solid',
+          winhighlight = "Normal:WinBarNC,FloatBorder:WinBarNC,Search:WinBarNC",
+        }
+      },
+
+      -- position of window
+      view = {
+        entries = {
+          name = 'custom',
+          selection_order = 'near_cursor'
+        }
+      },
+
+      -- formatting of content
+      formatting = {
+        fields = { 'menu', 'abbr', 'kind' },
+        format = function(entry, item)
+          local menu_icon = {
+            nvim_lsp = 'λ',
+            nvim_lua = 'v',
+            calc = '+',
+            luasnip = '%',
+            buffer = '@',
+            path = '#'
+          }
+
+          item.menu = menu_icon[entry.source.name]
+          return item
+        end
+      },
+
+      experimental = {
+        ghost_text = true
+      },
+
+      -- snippet integration
+      snippet = {
+        expand = function(args)
+          luasnip.lsp_expand(args.body)
+        end
+      },
+
+      -- mappings
+      mapping = cmp.mapping.preset.insert {
+        ["<Tab>"] = cmp.mapping(function(fallback)
+          if #cmp.get_entries() == 1 then
+            cmp.confirm({ select = true })
+          elseif cmp.visible() then
+            cmp.select_next_item()
+          elseif luasnip.expand_or_locally_jumpable() then
+            luasnip.expand_or_jump()
+          elseif has_words_before() then
+            cmp.complete()
+            if #cmp.get_entries() == 1 then
+              cmp.confirm({ select = true })
+            end
+          elseif neogen.jumpable() then
+            neogen.jump_next()
+          else
+            fallback()
+          end
+        end, { "i", "s" }),
+
+        ["<S-Tab>"] = cmp.mapping(function(fallback)
+          if cmp.visible() then
+            cmp.select_prev_item()
+          elseif luasnip.jumpable(-1) then
+            luasnip.jump(-1)
+          elseif neogen.jumpable(-1) then
+            neogen.jump_prev()
+          else
+            fallback()
+          end
+        end, { "i", "s" }),
+
+        ['<CR>'] = cmp.mapping {
+          i = function(fallback)
+            if cmp.visible() and cmp.get_active_entry() then
+              cmp.confirm({ behavior = cmp.ConfirmBehavior.Replace, select = false })
+            else
+              fallback()
+            end
+          end,
+          s = cmp.mapping.confirm({ select = true }),
+          c = cmp.mapping.confirm({ behavior = cmp.ConfirmBehavior.Replace,
+            select = true }),
+        },
+
+        ["<C-u>"] = cmp.mapping.scroll_docs(-4),
+        ["<C-d>"] = cmp.mapping.scroll_docs(4),
+        ['<ESC>'] = cmp.mapping.close(),
+        ["<C-e>"] = cmp.mapping.abort()
+      }
+    }
+  end
+}