Rename and refactor nvim ephemeral plugin

vim/plugin/bufhiddendelete.lua

@@ -1,17 +0,0 @@
-vim.api.nvim_create_user_command("BHD", function()
-	vim.bo.bufhidden = "delete"
-end, {})
-
-vim.api.nvim_create_user_command("BHK", function()
-	vim.bo.bufhidden = nil
-end, {})
-
-vim.g.ephemeral_buffers = false
-
-vim.api.nvim_create_autocmd("BufAdd", {
-	callback = function(args)
-		if vim.g.ephemeral_buffers then
-			vim.bo[args.buf].bufhidden = "delete"
-		end
-	end
-})

vim/plugin/ephemeral.lua

@@ -0,0 +1,36 @@
+vim.api.nvim_create_user_command("Pin", function()
+	vim.bo.bufhidden = "delete"
+end, {})
+
+vim.api.nvim_create_user_command("Drop", function()
+	vim.bo.bufhidden = nil
+end, {})
+
+vim.api.nvim_create_user_command("Ephemeral", function(params)
+	if params.args == "" then
+		print(vim.g.ephemeral_buffers
+			and "New buffers are ephemeral"
+			or "New buffers are permanent"
+		)
+	elseif params.args == "on" then
+		vim.g.ephemeral_buffers = true
+	elseif params.args == "off" then
+		vim.g.ephemeral_buffers = false
+	else
+		vim.api.nvim_echo({{"Unknown option: "}, {params.args, "error"}}, false, {})
+	end
+end, {nargs = "?", complete = function(lead)
+	return vim.fn.filter({ "on", "off" }, function(_, val)
+		return val:find("^" .. lead)
+	end)
+end})
+
+vim.g.ephemeral_buffers = false
+
+vim.api.nvim_create_autocmd("BufAdd", {
+	callback = function(args)
+		if vim.g.ephemeral_buffers then
+			vim.bo[args.buf].bufhidden = "delete"
+		end
+	end
+})