laptop.sh: install Rust toolchain

Configure Vim auto-formatting and run-from-file.

laptop.sh

@@ -196,3 +196,13 @@ defaults write com.microsoft.VSCode ApplePressAndHoldEnabled -bool false
 
 # Solana
 sh -c "$(curl -sSfL https://release.solana.com/stable/install)"
+
+# Rust
+if ! command -v rustup &> /dev/null; then
+  curl --proto '=https' --tlsv1.2 https://sh.rustup.rs -sSf | sh
+  source $HOME/.cargo/env
+fi
+
+if ! command -v rustfmt &> /dev/null; then
+  rustup component add rustfmt
+fi

vim/ftplugin/rust.vim

@@ -0,0 +1,5 @@
+" Auto-fix
+let g:rustfmt_autosave = 1
+
+" Run current file
+nmap <buffer> <Leader>r :!clear && cargo run<CR>

vim/vimrc

@@ -92,6 +92,9 @@ call plug#begin('~/.vim/plugged')
   " Go
   Plug 'fatih/vim-go', { 'do': ':GoInstallBinaries' }
 
+  " Rust
+  Plug 'rust-lang/rust.vim'
+
   " Ruby
   Plug 'tpope/vim-rails'
   Plug 'vim-ruby/vim-ruby'
@@ -125,6 +128,7 @@ let g:coc_global_extensions = [
   \ 'coc-go',
   \ 'coc-html',
   \ 'coc-prettier',
+  \ 'coc-rls',
   \ 'coc-svelte',
   \ 'coc-tsserver'
   \ ]