Merge pull request #87 from jdhao/autocmd

simplify and add new autocmd

lua/custom-autocmd.lua

@@ -7,13 +7,9 @@ local utils = require("utils")
 -- Display a message when the current file is not in utf-8 format.
 -- Note that we need to use `unsilent` command here because of this issue:
 -- https://github.com/vim/vim/issues/4379
-api.nvim_create_augroup("non_utf8_file", {
-  clear = true
-})
-
 api.nvim_create_autocmd({ "BufRead" }, {
   pattern = "*",
-  group = "non_utf8_file",
+  group = api.nvim_create_augroup("non_utf8_file", { clear = true }),
   callback = function()
     if vim.bo.fileencoding ~= 'utf-8' then
       vim.notify("File not in UTF-8 format!", vim.log.levels.WARN, { title = "nvim-config" })
@@ -22,26 +18,18 @@ api.nvim_create_autocmd({ "BufRead" }, {
 })
 
 -- highlight yanked region, see `:h lua-highlight`
-api.nvim_create_augroup("highlight_yank", {
-  clear = true
-})
-
 api.nvim_create_autocmd({ "TextYankPost" }, {
   pattern = "*",
-  group = "highlight_yank",
+  group = api.nvim_create_augroup("highlight_yank", { clear = true }),
   callback = function()
-    vim.highlight.on_yank { higroup = "YankColor", timeout = 300, on_visual = false }
+    vim.highlight.on_yank { higroup = "YankColor", timeout = 300 }
   end
 })
 
 -- Auto-generate packer_compiled.lua file
-api.nvim_create_augroup("packer_auto_compile", {
-  clear = true
-})
-
 api.nvim_create_autocmd({ "BufWritePost" }, {
   pattern = "*/nvim/lua/plugins.lua",
-  group = "packer_auto_compile",
+  group = api.nvim_create_augroup("packer_auto_compile", { clear = true }),
   callback = function(ctx)
     local cmd = "source " .. ctx.file
     vim.cmd(cmd)
@@ -50,13 +38,9 @@ api.nvim_create_autocmd({ "BufWritePost" }, {
 })
 
 -- Auto-create dir when saving a file, in case some intermediate directory does not exist
-api.nvim_create_augroup("auto_create_dir", {
-  clear = true
-})
-
 api.nvim_create_autocmd({ "BufWritePre" }, {
   pattern = "*",
-  group = "auto_create_dir",
+  group = api.nvim_create_augroup("auto_create_dir", { clear = true }),
   callback = function(ctx)
     local dir = fn.fnamemodify(ctx.file, ":p:h")
     utils.may_create_dir(dir)
@@ -66,9 +50,7 @@ api.nvim_create_autocmd({ "BufWritePre" }, {
 -- Automatically reload the file if it is changed outside of Nvim, see https://unix.stackexchange.com/a/383044/221410.
 -- It seems that `checktime` does not work in command line. We need to check if we are in command
 -- line before executing this command, see also https://vi.stackexchange.com/a/20397/15292 .
-api.nvim_create_augroup("auto_read", {
+api.nvim_create_augroup("auto_read", { clear = true })
-  clear = true
-})
 
 api.nvim_create_autocmd({ "FileChangedShellPost" }, {
   pattern = "*",
@@ -87,3 +69,10 @@ api.nvim_create_autocmd({ "FocusGained", "CursorHold" }, {
     end
   end
 })
+
+-- Resize all windows when we resize the terminal
+api.nvim_create_autocmd("VimResized", {
+  group = api.nvim_create_augroup("win_autoresize", { clear = true }),
+  desc = "autoresize windows on resizing operation",
+  command = "wincmd =",
+})