neovim: Use Telescope community multi-open binding

neovim/init.lua

@@ -119,7 +119,7 @@ plugins = {
 
             local builtin = require('telescope.builtin')
 
-            find_files = function(opts)
+            local function find_files(opts)
                 opts = opts or {}
                 opts['hidden'] = true
                 return builtin.find_files(opts)
@@ -137,8 +137,97 @@ plugins = {
             vim.keymap.set('n', ';b', builtin.buffers)
             vim.keymap.set('n', ';*', builtin.grep_string)
         end,
-        opts = {
+        opts = function(_plugin, _config)
+            local actions = require("telescope.actions")
+            local action_state = require("telescope.actions.state")
+            local transform_mod = require("telescope.actions.mt").transform_mod
+
+            -- https://github.com/nvim-telescope/telescope.nvim/issues/1048#issuecomment-1225975038
+            local function multiopen(prompt_bufnr, method)
+                local method = method or "default"
+
+                local edit_file_cmd_map = {
+                    vertical = "vsplit",
+                    horizontal = "split",
+                    tab = "tabedit",
+                    default = "edit",
+                }
+                local edit_buf_cmd_map = {
+                    vertical = "vert sbuffer",
+                    horizontal = "sbuffer",
+                    tab = "tab sbuffer",
+                    default = "buffer",
+                }
+
+                local picker = action_state.get_current_picker(prompt_bufnr)
+                local multi_selection = picker:get_multi_selection()
+
+                if #multi_selection > 1 then
+                    require("telescope.pickers").on_close_prompt(prompt_bufnr)
+                    pcall(vim.api.nvim_set_current_win, picker.original_win_id)
+
+                    for i, entry in ipairs(multi_selection) do
+                        local filename, row, col
+
+                        if entry.path or entry.filename then
+                            filename = entry.path or entry.filename
+
+                            row = entry.row or entry.lnum
+                            col = vim.F.if_nil(entry.col, 1)
+                        elseif not entry.bufnr then
+                            local value = entry.value
+                            if not value then
+                                goto continue
+                            end
+
+                            if type(value) == "table" then
+                                value = entry.display
+                            end
+
+                            local sections = vim.split(value, ":")
+
+                            filename = sections[1]
+                            row = tonumber(sections[2])
+                            col = tonumber(sections[3])
+                        end
+
+                        local entry_bufnr = entry.bufnr
+
+                        if entry_bufnr then
+                            if not vim.api.nvim_buf_get_option(entry_bufnr, "buflisted") then
+                                vim.api.nvim_buf_set_option(entry_bufnr, "buflisted", true)
+                            end
+                            local command = i == 1 and "buffer" or edit_buf_cmd_map[method]
+                            pcall(vim.cmd, string.format("%s %s", command, vim.api.nvim_buf_get_name(entry_bufnr)))
+                        else
+                            local command = i == 1 and "edit" or edit_file_cmd_map[method]
+                            if vim.api.nvim_buf_get_name(0) ~= filename or command ~= "edit" then
+                                filename = require("plenary.path"):new(vim.fn.fnameescape(filename)):normalize(vim.loop.cwd())
+                                pcall(vim.cmd, string.format("%s %s", command, filename))
+                            end
+                        end
+
+                        if row and col then
+                            pcall(vim.api.nvim_win_set_cursor, 0, { row, col-1 })
+                        end
+
+                        ::continue::
+                    end
+                else
+                    actions["select_" .. method](prompt_bufnr)
+                end
+            end
+
+            return {
                 defaults = {
+                    mappings = {
+                        i = {
+                            ["<CR>"] = multiopen,
+                        },
+                        n = {
+                            ["<CR>"] = multiopen,
+                        },
+                    },
                     vimgrep_arguments = {
                         "rg",
                         "--color=never",
@@ -150,13 +239,14 @@ plugins = {
                         -- Include hidden files, but continue ignoring the .git directory itself.
                         "--hidden",
                         "--iglob", "!.git",
-                }
+                    },
                 },
                 pickers = {},
                 extensions = {
                     aerial = {},
                 },
-        },
+            }
+        end,
     },
     {
         "nvim-telescope/telescope-fzf-native.nvim",