cscope: use lua port always

Remove <0.10 support

README.md

@@ -4,10 +4,15 @@ For old school code navigation :)
 
 Heavily inspired by emacs' [xcscope.el](https://github.com/dkogan/xcscope.el).
 
-**Adds `cscope` support for [Neovim](https://neovim.io/) 0.9+**
+**Adds `cscope` support for [Neovim](https://neovim.io/)**
 
 [cscope_maps.nvim.v2.webm](https://github.com/dhananjaylatkar/cscope_maps.nvim/assets/27724944/7ab4d902-fe6d-4914-bff6-353136c72803)
 
+## Requirements
+
+- Neovim >= 0.10
+- [cscope](https://sourceforge.net/projects/cscope/files/)
+
 ## Features
 
 ### Cscope
@@ -18,7 +23,6 @@ Heavily inspired by emacs' [xcscope.el](https://github.com/dkogan/xcscope.el).
 - Keymaps can be disabled using `disable_maps` option.
 - Supports `cscope` and `gtags-cscope`. Use `cscope.exec` option to specify executable.
 - `:Cstag <symbol>` does `tags` search if no results are found in `cscope`.
-- For `nvim < 0.9`, legacy cscope will be used. It will support keymaps. It won't have all the niceties of lua port.
 - Display results in quickfix, **telescope**, **fzf-lua** or **mini.pick**.
 - Has [which-key.nvim](https://github.com/folke/which-key.nvim) hints.
 - See [this section](#vim-gutentags) for `vim-gutentags`.

lua/cscope/init.lua

@@ -447,32 +447,6 @@ M.user_command = function()
 	})
 end
 
----Initialization API for inbuilt cscope
----Used for neovim < 0.9
-M.legacy_setup = function()
-	-- use both cscope and ctag for 'ctrl-]', ':ta', and 'vim -t'
-	vim.opt.cscopetag = true
-	-- check cscope for definition of a symbol before checking ctags: set to 1
-	-- if you want the reverse search order.
-	vim.opt.csto = 0
-	-- show msg when cscope db added
-	vim.opt.cscopeverbose = true
-	-- results in quickfix window
-	vim.opt.cscopequickfix = "s-,g-,c-,t-,e-,f-,i-,d-,a-"
-
-	if type(M.opts.db_file) == "table" then
-		for _, db in ipairs(M.opts.db_file) do
-			if vim.loop.fs_stat(db) ~= nil then
-				vim.api.nvim_command("cs add " .. db)
-			end
-		end
-	else -- string
-		if vim.loop.fs_stat(M.opts.db_file) ~= nil then
-			vim.api.nvim_command("cs add " .. M.opts.db_file)
-		end
-	end
-end
-
 ---Initialization api
 ---@param opts CsConfig
 M.setup = function(opts)
@@ -506,12 +480,8 @@ M.setup = function(opts)
 		end
 	end
 
-	if helper.legacy_cscope() then
-		M.legacy_setup()
-	else
-		cscope_picker = require("cscope.pickers." .. M.opts.picker)
-		M.user_command()
-	end
+	cscope_picker = require("cscope.pickers." .. M.opts.picker)
+	M.user_command()
 end
 
 return M

lua/cscope_maps/init.lua

@@ -1,5 +1,4 @@
 local helper = require("cscope_maps.utils.helper")
-local sv = require("cscope.stack_view")
 local M = {}
 
 ---@class CsMapsConfig
@@ -14,48 +13,38 @@ M.opts = {
 	cscope = {}, -- defaults are in cscope.lua
 }
 
+-- function to print xcscpoe.el like prompts
+M.cscope_prompt = function(operation, default_symbol)
+	if M.opts.skip_input_prompt then
+		vim.cmd.Cscope({ args = { "find", operation, default_symbol } })
+	else
+		local prompt = string.format("%s (default: '%s'): ", helper.sym_map[operation], default_symbol)
+		vim.ui.input({ prompt = prompt }, function(new_symbol)
+			if new_symbol == nil then
+				return
+			end
+			if new_symbol ~= "" then
+				vim.cmd.Cscope({ args = { "find", operation, new_symbol } })
+			else
+				vim.cmd.Cscope({ args = { "find", operation, default_symbol } })
+			end
+		end)
+	end
+end
+
 ---Initialization api
 ---@param opts CsMapsConfig
 M.setup = function(opts)
 	opts = opts or {}
 	M.opts = vim.tbl_deep_extend("force", M.opts, opts)
 
-	local cscope = "Cscope"
-
-	if helper.legacy_cscope() then
-		cscope = "cscope"
-	end
-
-	require("cscope").setup(M.opts.cscope)
-
-	-- function to print xcscpoe.el like prompts
-	M.cscope_prompt = function(operation, default_symbol)
-		local cmd = cscope .. " find " .. operation
-		if M.opts.skip_input_prompt then
-			cmd = cmd .. " " .. default_symbol
-			helper.run_cscope_command(cmd)
-		else
-			local prompt = helper.sym_map[operation] .. " (default: '" .. default_symbol .. "'): "
-			vim.ui.input({ prompt = prompt }, function(new_symbol)
-				if new_symbol == nil then
-					return
-				end
-				if new_symbol ~= "" then
-					cmd = cmd .. " " .. new_symbol
-				else
-					cmd = cmd .. " " .. default_symbol
-				end
-				helper.run_cscope_command(cmd)
-			end)
-		end
-	end
-
 	if not M.opts.disable_maps then
 		-- Mappings
-		helper.init_keymaps(M.opts.prefix)
+		helper.default_keymaps(M.opts.prefix)
 	end
 
-	sv.setup()
+	require("cscope").setup(M.opts.cscope)
+	require("cscope.stack_view").setup()
 end
 
 return M

lua/cscope_maps/utils/helper.lua

@@ -1,20 +1,4 @@
 local M = {}
-local map = vim.keymap.set
-
-M.ver = vim.version()
-
-M.legacy_cscope = function()
-	-- cscope is removed from nvim 0.9+
-	return M.ver.major == 0 and M.ver.minor < 9
-end
-
-M.run_cscope_command = function(cmd)
-	vim.api.nvim_command(cmd)
-	if M.legacy_cscope() then
-		print(cmd)
-		vim.api.nvim_command("copen")
-	end
-end
 
 -- define key table for input strings
 M.sym_map = {
@@ -44,6 +28,7 @@ M.get_cscope_prompt_cmd = function(operation, selection)
 end
 
 M.default_keymaps = function(prefix)
+	local map = vim.keymap.set
 	local sym_map = M.sym_map
 	local ok, wk = pcall(require, "which-key")
 	if ok then
@@ -63,16 +48,7 @@ M.default_keymaps = function(prefix)
 	map("n", prefix .. "d", M.get_cscope_prompt_cmd("d", "w"), { desc = sym_map.d })
 	map("n", prefix .. "a", M.get_cscope_prompt_cmd("a", "w"), { desc = sym_map.a })
 	map("n", prefix .. "b", "<cmd>Cscope db build<cr>", { desc = sym_map.b })
-end
-
-M.init_keymaps = function(prefix)
-	if not M.legacy_cscope() then
-		map("n", "<C-]>",
-			[[<cmd>exe "Cstag" expand("<cword>")<cr>]],
-			{ noremap = true, silent = true, desc = "ctag" })
-	end
-
-	M.default_keymaps(prefix)
+	map("n", "<C-]>", [[<cmd>exe "Cstag" expand("<cword>")<cr>]], { noremap = true, silent = true, desc = "ctag" })
 end
 
 return M