dot/bashrc: Show the exit code of a failed command in the prompt.

diff --git a/dot/bashrc b/dot/bashrc
index a7173f7..7fa8e3a 100644 (file)
--- a/dot/bashrc
+++ b/dot/bashrc
@@ -35,10 +35,12 @@ if [ -t 0 ]; then
        "") bold="\[$(tput md)\]" unbold="\[$(tput me)\]" ;;
        *) bold="\[$(tput bold)\]" unbold="\[$(tput sgr0)\]" ;;
       esac
+      rccolour="\[$(tput setaf 1)\]"
+      uncolour="\[$(tput op)\]"
       nl="\[\r\]"
       ;;
     *)
-      bold='' unbold='' nl='' ;;
+      bold='' unbold='' nl='' rccolour='' uncolour='';;
   esac
 
   ## Choose the right delimiters.  Highlight root prompts specially;
@@ -67,9 +69,12 @@ if [ -t 0 ]; then
   fi
 
   ## Build the prompt string.
-  PS1="$nl$bold$left$sec_l$u\\h$sec_r \\w$marker$right$unbold"
+  rc="$unbold$rccolour\$(rc=\$?;case \$rc in 0);;"
+  rc="$rc*)echo -n \" rc=\$rc\";;esac;exit \$rc)$uncolour$bold"
+  PS1="$nl$bold$left$sec_l$u\\h$sec_r \\w$rc$marker$right$unbold"
   PS2="$PS1 $bold>$unbold "
   unset nl bold unbold left right sec_l sec_r marker
+  unset rccolour uncolour rc
 fi
 
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