Add fff.nvim and replace snacks file picker with it

nvim/lazy-lock.json

@@ -7,6 +7,7 @@
   "codesnap.nvim": { "branch": "main", "commit": "be6d6b9a3b5e6999edbda76b16dace03d9bfcd3d" },
   "copilot.vim": { "branch": "release", "commit": "f3d66c148aa60ad04c0a21d3e0a776459de09eb2" },
   "diffview.nvim": { "branch": "main", "commit": "4516612fe98ff56ae0415a259ff6361a89419b0a" },
+  "fff.nvim": { "branch": "main", "commit": "a9cac80ea99eeb5882d11bdb3747b7dad8c92040" },
   "friendly-snippets": { "branch": "main", "commit": "572f5660cf05f8cd8834e096d7b4c921ba18e175" },
   "gitsigns.nvim": { "branch": "main", "commit": "6e3c66548035e50db7bd8e360a29aec6620c3641" },
   "goto-preview": { "branch": "main", "commit": "b5eb40a425caf6f8cff08aa40f2cfc0f0b0bda2c" },

nvim/lua/fff_snacks_picker.lua

@@ -0,0 +1,203 @@
+local M = {}
+
+local STAGED_STATUSES = {
+    staged_new = true,
+    staged_modified = true,
+    staged_deleted = true,
+    renamed = true,
+}
+
+local STATUS_MAP = {
+    untracked = "untracked",
+    modified = "modified",
+    deleted = "deleted",
+    renamed = "renamed",
+    staged_new = "added",
+    staged_modified = "modified",
+    staged_deleted = "deleted",
+    ignored = "ignored",
+    unknown = "untracked",
+}
+
+local STATUS_ICONS = {
+    untracked = "?",
+    ignored = "!",
+}
+
+---@class FFFState
+---@field current_file_cache? string
+---@field file_picker? table
+M.state = {}
+
+---Get the current file path if valid
+---@return string|nil
+local function get_current_file()
+    local current_buf = vim.api.nvim_get_current_buf()
+    if not (current_buf and vim.api.nvim_buf_is_valid(current_buf)) then
+        return nil
+    end
+
+    local current_file = vim.api.nvim_buf_get_name(current_buf)
+    return (current_file ~= "" and vim.fn.filereadable(current_file) == 1) and current_file or nil
+end
+
+---Create git status object
+---@param git_status string
+---@return table|nil
+local function create_git_status(git_status)
+    local mapped_status = STATUS_MAP[git_status]
+    if not mapped_status then
+        return nil
+    end
+
+    return {
+        status = mapped_status,
+        staged = STAGED_STATUSES[git_status] or false,
+        unmerged = git_status == "unmerged",
+    }
+end
+
+---Get or initialize file picker
+---@return table|nil
+local function get_file_picker()
+    if M.state.file_picker then
+        return M.state.file_picker
+    end
+
+    local ok, file_picker = pcall(require, "fff.file_picker")
+    if not ok then
+        vim.notify("Failed to load fff.file_picker: " .. file_picker, vim.log.levels.ERROR)
+        return nil
+    end
+
+    M.state.file_picker = file_picker
+    return file_picker
+end
+
+---Format git status highlight group name
+---@param status table
+---@return string
+local function get_status_highlight(status)
+    if status.unmerged then
+        return "SnacksPickerGitStatusUnmerged"
+    elseif status.staged then
+        return "SnacksPickerGitStatusStaged"
+    else
+        local status_name = status.status
+        return "SnacksPickerGitStatus" .. status_name:sub(1, 1):upper() .. status_name:sub(2)
+    end
+end
+
+---Get status icon text
+---@param status_name string
+---@return string
+local function get_status_icon(status_name)
+    return STATUS_ICONS[status_name] or status_name:sub(1, 1):upper()
+end
+
+local function finder(_, ctx)
+    local file_picker = get_file_picker()
+    if not file_picker then
+        return {}
+    end
+
+    -- Cache current file only once per session
+    if not M.state.current_file_cache then
+        M.state.current_file_cache = get_current_file()
+    end
+
+    local ok, fff_result = pcall(
+        file_picker.search_files,
+        ctx.filter.search,
+        100,
+        4,
+        M.state.current_file_cache,
+        false
+    )
+
+    if not ok then
+        vim.notify("FFF search failed: " .. fff_result, vim.log.levels.ERROR)
+        return {}
+    end
+
+    local items = {}
+    for _, fff_item in ipairs(fff_result) do
+        local item = {
+            text = fff_item.name,
+            file = fff_item.path,
+            score = fff_item.total_frecency_score,
+            status = create_git_status(fff_item.git_status),
+        }
+        table.insert(items, item)
+    end
+
+    return items
+end
+
+local function on_close()
+    M.state.current_file_cache = nil
+end
+
+local function format_file_git_status(item, _)
+    local status = item.status
+    local hl = get_status_highlight(status)
+    local icon = get_status_icon(status.status)
+
+    return {
+        {
+            col = 0,
+            virt_text = { { icon, hl }, { " " } },
+            virt_text_pos = "right_align",
+            hl_mode = "combine",
+        }
+    }
+end
+
+local function format(item, picker)
+    local ret = {}
+
+    if item.label then
+        vim.list_extend(ret, {
+            { item.label, "SnacksPickerLabel" },
+            { " ",        virtual = true }
+        })
+    end
+
+    if item.status then
+        vim.list_extend(ret, format_file_git_status(item, picker))
+    end
+
+    vim.list_extend(ret, require("snacks.picker.format").filename(item, picker))
+
+    if item.line then
+        Snacks.picker.highlight.format(item, item.line, ret)
+        table.insert(ret, { " " })
+    end
+
+    return ret
+end
+
+function M.fff()
+    local file_picker = get_file_picker()
+    if not file_picker then
+        return
+    end
+
+    if not file_picker.is_initialized() then
+        local setup_success = file_picker.setup()
+        if not setup_success then
+            vim.notify("Failed to initialize file picker", vim.log.levels.ERROR)
+            return
+        end
+    end
+
+    Snacks.picker {
+        title = "FFFiles",
+        finder = finder,
+        on_close = on_close,
+        format = format,
+        live = true,
+    }
+end
+
+return M

nvim/lua/plugs/fff.lua

@@ -0,0 +1,14 @@
+return {
+    "dmtrKovalenko/fff.nvim",
+    build = "nix run .#release",
+    -- No need to lazy-load with lazy.nvim.
+    -- This plugin initializes itself lazily.
+    lazy = false,
+    keys = {
+        {
+            "ff", -- try it if you didn't it is a banger keybinding for a picker
+            function() require('fff').find_files() end,
+            desc = 'FFFind files',
+        }
+    }
+}

nvim/lua/plugs/snacks.lua

@@ -1,3 +1,5 @@
+local fff_picker = require("fff_snacks_picker")
+
 return {
     "folke/snacks.nvim",
     priority = 1000,
@@ -17,6 +19,14 @@ return {
         },
         picker = {
             enabled = true,
+            ui_select = true,
+            formatters = {
+                filename_first = true,
+                truncate = 40,
+                filename_only = false,
+                icon_width = 2,
+                git_status_hl = true,
+            },
             sources = {
                 recent = {
                     filter = {
@@ -136,7 +146,7 @@ return {
 
         { "<leader>z", function() Snacks.zen() end, },
 
-        { "<leader>f", function() Snacks.picker.smart() end, },
+        { "<leader>f", function() fff_picker.fff() end, },
         { "<leader>g", function() Snacks.picker.grep() end, },
         { "<leader>b", function() Snacks.picker.buffers() end, },
         { "<leader>l", function() Snacks.picker.git_log_file() end, },