bash: install cargo and use that for exa etc.

install

@@ -22,12 +22,13 @@ for rc in *rc *profile tmux.conf bashrc.d mutt ; do
   fi
 done
 
-for s in install_*.bash ; do
-	source $s
-done
+if [ "$(which cargo)" == "" ] ; then
+  # Install Cargo, in order to install exa etc.
+  (curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh) || exit 1
+  source $HOME/.cargo/env
+fi
 
-install_delta
-install_bat
+cargo install delta bat exa sd
 
 # git-prompt
 # if [ ! -e ~/.git-prompt.sh ]; then