nvim: refactor cmds into commands

.config/nvim/plugin/autocommands.lua

@@ -0,0 +1,29 @@
+vim.api.nvim_create_autocmd("TextYankPost", {
+    group = vim.api.nvim_create_augroup("Visual", {}),
+    callback = function()
+        vim.highlight.on_yank {
+            higroup = "IncSearch",
+            timeout = 100,
+        }
+    end,
+})
+
+vim.api.nvim_create_autocmd("OptionSet", {
+    pattern = "shiftwidth",
+    callback = function()
+        if vim.o.expandtab then
+            local c = ""
+            for _ = c:len(), vim.o.shiftwidth + 1 do
+                c = c .. " "
+            end
+            return vim.opt.lcs:append("leadmultispace:" .. c)
+        else
+            return nil
+        end
+    end,
+})
+
+vim.api.nvim_create_autocmd("OptionSet", {
+    pattern = "textwidth",
+    callback = function() vim.wo.colorcolumn = tostring(vim.bo.textwidth) end,
+})

.config/nvim/plugin/commands.lua

@@ -0,0 +1,24 @@
+vim.api.nvim_create_user_command("Retab", function(opts)
+    if #opts.fargs ~= 2 then
+        return print("should have exactly two argument: [src] and [dst]")
+    end
+    local src = tonumber(opts.fargs[1])
+    local dst = tonumber(opts.fargs[2])
+    if src == nil then
+        print("first argument [src] is not a valid number")
+    end
+    if dst == nil then
+        print("second argument [dst] is not a valid number")
+    end
+
+    vim.bo.shiftwidth = src
+    vim.bo.tabstop = src
+    vim.bo.expandtab = false
+    vim.cmd("%retab!")
+    vim.bo.shiftwidth = dst
+    vim.bo.tabstop = dst
+    vim.bo.expandtab = true
+    vim.cmd("%retab!")
+end, { nargs = "+" })
+
+vim.api.nvim_create_user_command("W", function() vim.cmd.w() end, {})

.config/nvim/plugin/ftdetect.lua

@@ -0,0 +1,8 @@
+vim.filetype.add {
+    extension = {
+        [".*Caddyfile"] = "caddyfile",
+        hledger = "ledger",
+        pro = "projet",
+        typ = "typst",
+    },
+}