nvim: fugitive: Add mapping to view file on another branch

We might use Git show to view git revision of the file
on another branch and we do not want to attach LSP to
this file. This file will be opened as a temporary with
path /tmp/nvim/<something>.

On similar lines to commit 1eec783a20.

nvim/.config/nvim/after/plugin/fugitive.vim

@@ -36,6 +36,7 @@ nnoremap <Leader>G  :keepalt Git<SPACE>
 
 nnoremap <Leader>gp :call git#git_push_to_upstream()<CR>
 nnoremap <expr> <Leader>gP git#git_push()
+nnoremap <expr> <Leader>gO git#git_show_file_on_branch()
 
 augroup custom_fugitive
   autocmd!

nvim/.config/nvim/autoload/git.vim

@@ -289,6 +289,11 @@ function! git#git_review_fileview() abort
   execute "Git difftool -y " . default[3] . "..." . current
 endfunction
 
+" Show file on another branch without changing current branch
+function! git#git_show_file_on_branch() abort
+  return ":Git show :" . expand("%")
+endfunction
+
 " Generate a helpful name when using Git stash
 function! git#git_stash() abort
   let current = trim(system("git branch --show-current"))

nvim/.config/nvim/lua/lsp.lua

@@ -264,6 +264,10 @@ vim.api.nvim_create_autocmd("LspAttach", {
       return
     end
 
+    if string.find(file_name, "/tmp/") then
+      return
+    end
+
     for _, mappings in pairs(lsp_key_mappings) do
       local capability, mode, lhs, rhs = unpack(mappings)
       if client.supports_method(capability) then
@@ -286,6 +290,10 @@ vim.api.nvim_create_autocmd("LspDetach", {
       return
     end
 
+    if string.find(file_name, "/tmp/") then
+      return
+    end
+
     for _, mappings in pairs(lsp_key_mappings) do
       local capability, mode, lhs, _ = unpack(mappings)
       if client.supports_method(capability) then

sway/.config/sway/config

@@ -4,8 +4,8 @@ set $next bracketright
 set $term alacritty
 set $alt_term foot
 set $menu fuzzel
-set $screenshot grim ~/Pictures/screenshots/scrn-$(date +"%Y-%m-%d-%H-%M-%S").png
-set $screenclip slurp | grim -g - ~/Pictures/screenshots/scrn-$(date +"%Y-%m-%d-%H-%M-%S").png
+set $screenshot grim $(xdg-user-dir PICTURES)/screenshots/scrn-$(date +"%Y-%m-%d-%H-%M-%S").png
+set $screenclip slurp | grim -g - $(xdg-user-dir PICTURES)/screenshots/scrn-$(date +"%Y-%m-%d-%H-%M-%S").png
 set $lock swaylock
 
 set $color_urgent #cc241d