Use exa only if installed (#251)

files/topherrc

@@ -16,8 +16,6 @@ alias fdh='fdfind -H'
 alias vim=nvim
 alias gg=lazygit
 alias lg=lazygit
-alias ls="exa"
-alias ll="exa -al"
 alias rg='rg --smart-case --no-messages'
 alias rgh="rg --smart-case  --no-messages --hidden -g '!.git/'"
 alias sgp=/home/gitpod/.dotfiles/start-tmux-and-install-slow-packages.sh
@@ -28,6 +26,22 @@ export LESS="-F -X $LESS"
 alias '$'=''
 alias '$ '=''
 
+# use exa if installed, otherwise use ls
+ls() {
+	if command -v exa >/dev/null 2>&1; then
+		exa "$@"
+	else
+		command ls "$@"
+	fi
+}
+ll() {
+	if command -v exa >/dev/null 2>&1; then
+		exa -al "$@"
+	else
+		command ls -al "$@"
+	fi
+}
+
 # Delete the current branch you're on, leaving you on a detached HEAD
 function gdcb {
 	branch_name=$(git symbolic-ref HEAD --short)