Rework Neovim configuration

home-manager/cli/neovim/files/cmp.lua

@@ -0,0 +1,98 @@
+local has_words_before = function()
+    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
+
+local get_ws = function (max, len)
+    return (" "):rep(max - len)
+end
+
+-- Add additional capabilities supported by nvim-cmp
+local capabilities = require('cmp_nvim_lsp').default_capabilities()
+local luasnip = require("luasnip")
+local kind_icons = {
+    Text = "",
+    Method = "󰆧",
+    Function = "󰊕",
+    Constructor = "",
+    Field = "󰇽",
+    Variable = "󰂡",
+    Class = "󰠱",
+    Interface = "",
+    Module = "",
+    Property = "󰜢",
+    Unit = "",
+    Value = "󰎠",
+    Enum = "",
+    Keyword = "󰌋",
+    Snippet = "",
+    Color = "󰏘",
+    File = "󰈙",
+    Reference = "",
+    Folder = "󰉋",
+    EnumMember = "",
+    Constant = "󰏿",
+    Struct = "",
+    Event = "",
+    Operator = "󰆕",
+    TypeParameter = "󰅲",
+}
+-- nvim-cmp setup
+local cmp = require 'cmp'
+cmp.setup {
+    mapping = {
+        ["<Tab>"] = cmp.mapping(function(fallback)
+            if cmp.visible() then
+                cmp.select_next_item()
+                -- You could replace the expand_or_jumpable() calls with expand_or_locally_jumpable() 
+                -- they way you will only jump inside the snippet region
+            elseif luasnip.expand_or_jumpable() then
+                luasnip.expand_or_jump()
+            elseif has_words_before() then
+                cmp.complete()
+            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)
+            else
+                fallback()
+            end
+        end, { "i", "s" }),
+        ["<C-b>"] = cmp.mapping(cmp.mapping.scroll_docs(-4), {'i', 'c'}),
+        ["<C-f>"] = cmp.mapping(cmp.mapping.scroll_docs(4), {'i', 'c'}),
+        ["<C-Space>"] = cmp.mapping(cmp.mapping.complete(), {'i', 'c'}),
+        ["<C-e>"] = cmp.mapping({ i = cmp.mapping.close(), c = cmp.mapping.close() }),
+    },
+    formatting = {
+        format = function(_, vim_item)
+            vim_item.kind = string.format('%s %s', kind_icons[vim_item.kind], vim_item.kind)
+            
+            local content = vim_item.abbr
+            if #content > 25 then
+            vim_item.abbr = vim.fn.strcharpart(content, 0, 25) .. "…"
+            else
+                vim_item.abbr = content .. get_ws(25, #content)
+            end
+
+            return vim_item
+        end,
+    },
+    sources = {
+        {name = 'path'},
+        {name = 'nvim_lsp', keyword_length = 1},
+        {name = 'buffer', keyword_length = 3},
+        {name = 'luasnip', keyword_length = 2},
+    },
+}